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  4. OKIOFFICE 84
  5. Service Manual

Oki OKIOFFICE 84 Service Manual

Summary of OKIOFFICE 84

  • Page 1

    Service guide okioffice 84 chapter 0 about this manual front cover okioffice 84 multifunctional products adobe acrobat printable reference copy of the okidata service training manual. 10/01/99 note: this adobe acrobat version of the okidata service training manual was built with the pictures rendere...

  • Page 2

    Table of contents page service guide okioffice 84 0 about this manual read me first 2 copyright 3 1 general information 1.1 general performance 4 1.2 general user's function 5 1.3 general maintenance functions 6 1.4 general appearance 7 ....1.4.1 general appearance of okioffice 84 8 ....1.4.2 contro...

  • Page 3

    Table of contents page ....2.9.2 technical functions 47 ........Service personnel initial settings table 2.9.2 (1/7) 48 ........Service personnel initial settings table 2.9.2 (2/7) 49 ........Service personnel initial settings table 2.9.2 (3/7) 50 ........Service personnel initial settings table 2.9...

  • Page 4

    Table of contents page ........2.9.5 user's functions example 89 ....2.9.6 clock adjustment 90 ....2.9.7 dual access operation 91 ....2.9.8 system data programming 92 ....2.9.9 dial parameter settings 93 ........Procedure 94 ........Default settings of dial parameters 95 ........Dial parameters sett...

  • Page 5

    Table of contents page 6 cleaning and maintenance 6.1 replacement of consumables 134 ....User replaceable items life 135 ....Service parts life 136 ....Consumables diagram (figure 6.1.1) 137 ........Reliability table (6.1.1) 138 6.2 preventative maintenance 139 ....Preventative maintenance (table 6....

  • Page 6

    Table of contents page ....7.20 document skew 182 ....7.21 document jam 183 ....7.22 printer unit 184 ........7.22.1 precaution 185 ........7.22.2 troubleshooting flow charts of printer unit 186 ............Troubleshooting flow chart 1: 187 ............1: top cover is open 188 ............2: replace...

  • Page 7

    Table of contents page ....A3.1.4 r51 circuit diagram (page 4/12) 232 ....A3.1.5 r51 circuit diagram (page 5/12) 233 ....A3.1.6 r51 circuit diagram (page 6/12) 234 ....A3.1.7 r51 circuit diagram (page 7/12) 235 ....A3.1.8 r51 circuit diagram (page 8/12) 236 ....A3.1.9 r51 circuit diagram (page 9/12)...

  • Page 8

    Table of contents page section 11: printer base frame unit (1 of 2) 281 section 11: printer base frame unit (2 of 2) 282 section 12: cables 283.

  • Page 9

    Page: 2 service guide okioffice 84 chapter 0 about this manual read me first kit contents upon receiving the kit, verify that it contains the items listed below. This read me first sheet l quick start l certification manual l hardware handbook l service manual l software guide l word scan plus user’...

  • Page 10

    Page: 3 service guide okioffice 84 chapter 0 about this manual copyright this document may not be reproduced without the written permission of okidata training and publications. Every effort has been made to ensure the accuracy of the information contained in this training course. Okidata is not res...

  • Page 11

    Page: 4 service guide okioffice 84 chapter 1 general information 1.1 general performance 1 type of appearance desktop type l 2 applicable lines public switched telephone network (pstn) l private branch exchange (pbx) l 3 compatibility itu-t group 3 facsimile transceiver itu-t group 3 facsimile trans...

  • Page 12

    14 recording resolution) horizontal: 300 dots/inch b) vertical: variable: automatically adjusted to the paper length. L std mode (3.85 to 5.06 line/mm) l fine mode (7.7 to 10.13 line/mm) l fixed: std mode: 3.85 line/mm l fine mode: 7.7 line/mm l ex-fine mode : 15.4 line/mm : 300 dot/inch l 15 record...

  • Page 13

    Page: 5 service guide okioffice 84 chapter 1 general information 1.2 general user's function 1 transmit mode automatic transmit mode l manual transmit mode l 2 receive mode automatic receive mode l manual receive mode l tel/fax automatic switchover mode l tad mode l memory only receive mode l pc rec...

  • Page 14

    One-touch dialing - 10 locations l two-digit automatic dialing - 70 locations l keypad dialing l chain dialing l mixed dialing l group dialing - 5 dialing groups l 32 realtime dialing (in case of optional handset is installed or hook key is pressed.) 33 automatic pause signal insertion 34 manual fee...

  • Page 15

    Page: 6 service guide okioffice 84 chapter 1 general information 1.3 general maintenance functions 1 self-diagnosis cpu rom/ram check l flash memory check (program, language, default) l ram check l print test l 2 sensor calibration (adjustment of scanning level) 3 led test 4 tone send test 5 multi-f...

  • Page 16

    Page: 7 service guide okioffice 84 chapter 1 general information 1.4 general appearance figure 1.4.1 shows the general appearance of the okioffice 84 figure 1.4.2 control panel copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx)...

  • Page 17

    Page: 8 service guide okioffice 84 chapter 1 general information 1.4.1 general appearance of okioffice 84 figure 1.4.1 shows the general appearance of the okioffice 84 figure 1.4.1 general appearance of okioffice84 copyright 1998, okidata, division of oki america, inc. All rights reserved. See the o...

  • Page 18

    Page: 9 service guide okioffice 84 chapter 1 general information 1.4.2 control panel copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 19

    Page: 10 service guide okioffice 84 chapter 1 general information 1.5 basic performance specifications table 1.5.1 (1/9) basic performance specifications table 1.5.1 (2/9) basic performance specifications table 1.5.1 (3/9) basic performance specifications table 1.5.1 (4/9) basic performance specific...

  • Page 20

    Page: 11 service guide okioffice 84 chapter 1 general information table 1.5.1 (1/9) basic performance specifications no. Item specifications 1 applicable line 1) general switched telephone network (gstn) 2) private branch exchange (pbx) (ot9+2) 2 line interface 1) impedance 600 ohms balanced note: i...

  • Page 21

    Page: 12 service guide okioffice 84 chapter 1 general information table 1.5.1 (2/9) basic performance specifications no. Item specifications 4 effective reading width document width communication mode/paper width effective reading width copy size iso a4 (210 mm) [intl/ftz] g3/a4 208 mm for tx 203.2 ...

  • Page 22

    Page: 13 service guide okioffice 84 chapter 1 general information table 1.5.1 (3/9) basic performance specifications no. Item specifications 9 recording paper or sheet for tray-paper: 1) type: plain paper cut (bond paper) 2) size: iso a4 (210 mm x 297 mm) na letter (215.9 mm x 279.4 mm)/(8.5 inch x ...

  • Page 23

    Page: 14 service guide okioffice 84 chapter 1 general information table 1.5.1 (4/9) basic performance specifications no. Item specifications 11 effective recording area note: these tables do not include vertical and horizontal addressing deviations (+ or =3 mm) of recording paper. 1) printable area ...

  • Page 24

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 25

    Page: 15 service guide okioffice 84 chapter 1 general information table 1.5.1 (5/9) basic performance specifications no. Item specifications 12 copy stacking the fax can discharge printed copies and stack them faceup. Maximum sheets on the copy stacker: 30* note*: oki data recommended paper 13 scann...

  • Page 26

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 27

    Page: 16 service guide okioffice 84 chapter 1 general information table 1.5.1 (6/9) basic performance specifications no. Item specifications 22 minimum scan line time for receiving 0 ms, when receiving in ecm mode or from an oki data facsimile. 5 ms at 15.4 line/mm or 7.7 line/mm and 10 ms at 3.85 l...

  • Page 28

    Page: 17 service guide okioffice 84 chapter 1 general information table 1.5.1 (7/9) basic performance specifications no. Item specifications 27 transmission time 6 sec. (approx. 6.9 sec) /itu-t no. 1 sample document note: this is phase c time at 3.85 line/mm and 14400 bps for 6 sec. In mmr code tran...

  • Page 29

    Page: 18 service guide okioffice 84 chapter 1 general information table 1.5.1 (8/9) basic performance specifications no. Item specifications 35 pc interface applications (option) note: this function is the standard for okioffice 84. The following four modes are supported: 1) pc local printer functio...

  • Page 30

    Page: 19 service guide okioffice 84 chapter 1 general information table 1.5.1 (9/9) basic performance specifications (note) the curve connecting 28°c, 85% and 0°c, 64% is the condensation curve. Figure 1.5.1 ambient conditions no. Item specifications 38 dimension (main body) 1) width: approx. 316 mm...

  • Page 31

    40 attachment (to the main body) 1) ac power cord x 1 2) i/d unit x 1 (already installed) 3) toner cartridge x 1 4) telephone cord for (4) 5) document stacker x 1 6) line cord x 1 7) one touch sheet x 1 (already installed) 8) user's guide x 1 copyright 1998, okidata, division of oki america, inc. Al...

  • Page 32

    Page: 20 service guide okioffice 84 chapter 1 general information 1.6 reports and lists table 1.6.1 (1/2) reports and lists specifications table 1.6.1 (2/2) shows reports and lists specifications copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business par...

  • Page 33

    Page: 21 service guide okioffice 84 chapter 1 general information 1.6.1 reports & list specifications (1/2) note: f +ot: press function and one-touch key fp: function program setting tf: technical function setting no. Item specifications 1 call-back message the transmitter sends a call-back message ...

  • Page 34

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 35

    Page: 22 service guide okioffice 84 chapter 1 general information 1.6.1 shows reports and lists (2/2) call-back message format sender id format: tsi printing and local date and time printing format: power outage report format activity report format active memory files message confirmation report for...

  • Page 36

    Page: 23 service guide okioffice 84 chapter 1 general information call-back message format: (example) (1) date and time (2) sender id (3) csi/personal id (4) letters "please call back" (5) sender id (6) sender's call back telephone number copyright 1998, okidata, division of oki america, inc. All ri...

  • Page 37

    Page: 24 service guide okioffice 84 chapter 1 general information sender id format: (example) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 38

    Page: 25 service guide okioffice 84 chapter 1 general information tsi printing and local date and time printing format: (example) note: tsi printing (tf+05) local date and time printing (tf+04) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partn...

  • Page 39

    Page: 26 service guide okioffice 84 chapter 1 general information power outage report format: (example) note: memory reception only is printed on the mode in the report as called. Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (b...

  • Page 40

    Page: 27 service guide okioffice 84 chapter 1 general information activity report format: (example) (1) title of the report (2) date and time when the report was printed.

  • Page 41

    (3) sender id (4) total calling and called time (5) date of transmission or reception (6) time when the communication started (7) time span of the fax communication. (8) identification of the remote station personal id/location id/tsi/csi/dial number or space (9) communication mode: calling (transmi...

  • Page 42

    Page: 28 service guide okioffice 84 chapter 1 general information active memory files (1) reception (memory reception) prints the information of no paper/no toner reception. L entries is the number of received communication times stored in the memory. L pages is the number of total pages of the rece...

  • Page 43

    Prints the information of delay memory transmission and redial. L however, polling rx information is printed out on the above item 3. Prints the communication date and time, distant station id and mode. L others when there is no stored image data in the memory at all, this active memory files is not...

  • Page 44

    Page: 29 service guide okioffice 84 chapter 1 general information message confirmation report format: (example) (example 1 of 2) (example 2 of 2).

  • Page 45

    (1) title of the report (2) date and time when the report was printed (3) sender id (4) date of transmission or reception (5) length of time for which the fax was connected to the line (6) identification of the remote station personal id/location id/tsi/csi/dial number (7) communication mode referen...

  • Page 46

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 47

    Page: 30 service guide okioffice 84 chapter 1 general information broadcast entry report format: (example).

  • Page 48

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 49

    Page: 31 service guide okioffice 84 chapter 1 general information broadcast confirmation report format: (example) *1: identification of remote station personal id, tsi, location id or dial number (printing in this order depending if information is programed in remote fax machine) copyright 1998, oki...

  • Page 50

    Page: 32 service guide okioffice 84 chapter 1 general information confidential reception report format: (example) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 51

    Page: 33 service guide okioffice 84 chapter 1 general information telephone directory: example (example 1 of 3).

  • Page 53

    (example 2 of 3) (example 3 of 3).

  • Page 54

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 55

    Page: 34 service guide okioffice 84 chapter 1 general information configuration report (user).

  • Page 56

    *1 function 21 is printed out when the mfp operation on/off setting is set to on from host to mfp..

  • Page 57

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 58

    Page: 35 service guide okioffice 84 chapter 1 general information service default report (configuration report: service bit=on) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Ok...

  • Page 59

    Page: 36 service guide okioffice 84 chapter 2 installation 2.1 general setup information the following flowchart outlines the installation procedure..

  • Page 62

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 63

    Page: 37 service guide okioffice 84 chapter 2 installation 2.2 site selection installation precautions for installation 1 fluctuation in line voltage 120v ac (102v to 127v) l 230v ac (198v to 264v) l 2 room temperature 50 to 90 degrees fahrenheit (10 to 32 degrees celsius) 3 humidity 20 to 80% rh 4 ...

  • Page 64

    Note:.

  • Page 65

    1 this space is necessary for having the telephone set. (page 2-3) 2 this space is necessary for installing the document stacker. 3 this space is necessary for ventilation. Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for...

  • Page 66

    Page: 38 service guide okioffice 84 chapter 2 installation 2.3 unpacking procedure 1 remove tape on the top of the carton box and open its cover. Figure 2.3.1.1 unpacking procedure (1) 2 take out the accessory box from the carton box. (see figure below 2.3) 3 take out the machine with plastic wrappe...

  • Page 67

    Figure 2.3 unpacking procedure (2).

  • Page 68

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 69

    Page: 39 service guide okioffice 84 chapter 2 installation 2.4 check of contents table 2.4.1 contents list for okioffice 84 after having taken out the machine and accompanied accessories from the carton box, check the contents according to the following list: item no. Name quantity remarks 1 okioffi...

  • Page 70

    Page: 40 service guide okioffice 84 chapter 2 installation 2.5 installation of attachments 1 items image drum (id) unit (already installed) l toner cartridge l recording paper l tray-paper, tray-document and document-stacker l 2 procedure 1) toner cartridge peel off the fixed tape attached to the co...

  • Page 71

    Take out the toner cartridge from the damp proof bag, shake it five or six times as shown in the illustration to l eliminate the otner deflection, and peel off the seal gently. Figure 2.5.3 toner cartridge installation (3) ensure that the plastic tab on the right-hand side of the toner cartridge rec...

  • Page 72

    Figure 2.5.4 toner cartridge installation (4) push the gray tab forward until it stops. L figure 2.5.5 toner cartridge installation (5).

  • Page 73

    Clean the toner scattered in the vicinity of the toner cartridge using a cloth moistened with cold l water. Do not use hot water since it makes the toner stick there. Close the cover assembly-top until the buttons have been locked completely. L 3 recording paper note: about 100 sheets of the new pap...

  • Page 74

    Figure 2.5.7 document stacker installation copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 75

    Page: 41 service guide okioffice 84 chapter 2 installation 2.6 ac cord connection the power supply is provided as follows. Nominal input voltage 120v ac (voltage range 102 to 127v ac) nominal input voltage 230v ac (voltage range 198 to 250 v ac) check whether the ac voltage of your input is within t...

  • Page 76

    Page: 42 service guide okioffice 84 chapter 2 installation 2.7 telephone and line connections 1 procedure connect the lines. L copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Oki...

  • Page 77

    Page: 43 service guide okioffice 84 chapter 2 installation 2.8 packing for shipment caution: when packing the okioffice 84 for shipment, remove the image drum and toner from the unit and ship separately! Failure to do this will result in damage to the machine. Copyright 1998, okidata, division of ok...

  • Page 78

    Page: 44 service guide okioffice 84 chapter 2 installation 2.9 initial settings 2.9.1 general procedure of key operation 2.9.2 technical functions 2.9.3 technical functions example 2.9.4 user's functions 2.9.5 function program 2.9.6 clock adjustment 2.9.7 dual access operation 2.9.8 system data prog...

  • Page 79

    Page: 45 service guide okioffice 84 chapter 2 installation 2.9.1 general procedure of key operation figure 2.9.1 shows the general procedure of key operation. Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates t...

  • Page 80

    Page: 46 service guide okioffice 84 chapter 2 installation key operation flowchart.

  • Page 82

    Note: when the machine is in power save mode, the machine returns to standby mode by pressing the start key. *1: in case of germany, austria and switzerland version, activity report message does not appear on the lcd display. *2: user can read no. Of counter in lcd but can not clear. : effective if ...

  • Page 84

    *3: user can not select in some countries. *4: when the service bit is set to off, err. Report (mcf.) of no. 03, ring response of no. 11, distinctive ring of no. 12 and power save mode of no. 18 are bypassed to the next function no. In some countries. : effective if the service bit is set to on..

  • Page 86

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 87

    Page: 47 service guide okioffice 84 chapter 2 installation 2.9.2 technical functions this section explains setting items generally conducted by service personnel, not by users. Table 2.9.2 (1/7) shows the initial setting items and their purposes. (the default setting is different by the individual c...

  • Page 88

    Page: 48 service guide okioffice 84 chapter 2 installation service personnel initial settings table 2.9.2 (1/7) t.F. No. Item specifications default 01 service bit switching serviceman/user operation. On : service personnel's features are available. Off : service personnel's features are not availab...

  • Page 90

    Page: 49 service guide okioffice 84 chapter 2 installation service personnel initial settings table 2.9.2 (2/7) t.F. No. Item specifications default 06 tad mode (for external telephone answering device.) switches an automatic voice message response to the calling station. Tad mode is of three types ...

  • Page 91

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 92

    Page: 50 service guide okioffice 84 chapter 2 installation service personnel initial settings table 2.9.2 (3/7) t.F. No. Item specifications default 09 mdy/dmy switches lcd display and report print from month/day/year to day/month/year or vice versa. Mdy/dmy selectable. 10 long document scan switche...

  • Page 93

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 94

    Page: 51 service guide okioffice 84 chapter 2 installation service personnel initial settings table 2.9.2 (4/7) t.F. No. Item specifications default 16 t2, timeout value t2, timeout value (layer) registers the time duration (in seconds) for which the receiving fax detects the eol (end of line) signa...

  • Page 95

    21 modem attenuator adjusts the attenuation (db) for the message send signal power level. Adjusting value is 0 to 15 db in one db steps. Since the maximum send signal power level (db) of the fax is at 0 db, you can select 0 db to -15 db in one db steps for the send signal power level. 0 to 15 db. Se...

  • Page 96

    Page: 52 service guide okioffice 84 chapter 2 installation service personnel initial settings table 2.9.2 (5/7) t.F. No. Item specifications default note: the send signal power level should meet your country's regulation. Some countries may specify the power level at a telephone exchange. In that ca...

  • Page 97

    26 strobe for led head setting of led print head strobe signals (00000-11111). Selection of strobe width in led head. "00000" is lightest and "11111" is darkest. Note 1: when the rank marking of the new replaced led print head (new part) is same as that of the old used led print head (old part), you...

  • Page 98

    Page: 53 service guide okioffice 84 chapter 2 installation service personnel initial settings table 2.9.2 (6/7) t.F. No. Item specifications default 27 head width head width you should confirm the head width by the following table, and then select it by this setting. Head width is two types (type1/t...

  • Page 99

    Page: 54 service guide okioffice 84 chapter 2 installation service personnel initial settings table 2.9.2 (7/7) t.F. No. Item specifications default 31 id/tsi priority selects id/tsi printing in the distant station id col-umn of the report. Id: prints nsf signal with personal id. Tsi: prints tsi sig...

  • Page 100

    Page: 55 service guide okioffice 84 chapter 2 installation tel/fax automatic switching 1) tel/fax automatic switching this function is used for the purpose of tel/fax automatic switching as follows. (1) if the machine detects a call with a cng signal indicating an auto send facsimile call, it starts...

  • Page 101

    Page: 56 service guide okioffice 84 chapter 2 installation tel/fax mode flow chart.

  • Page 102

    [notes] *1: ring back tone -- 1 sec. On, 3.2 sec. Off *2: when you want to talk by phone, pick up handset. *3: the called party can send ced to the calling party immediately to start fax communication if the cng is.

  • Page 103

    Detected during the period. *4: if the fax does not detect cng signal during working of tel/fax mode, lcd display indicates "lift handset". Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (h...

  • Page 104

    Page: 57 service guide okioffice 84 chapter 2 installation tad mode flow chart (type 1) even though the fax does not detect cng signal, the fax will go to receiving mode. *1 to enable the manual tx mode. Load document ---> press start button ---> manual transmission copyright 1998, okidata, division...

  • Page 105

    Page: 58 service guide okioffice 84 chapter 2 installation tad mode flow chart (type 2) if the fax does not detect cng signal during working of tad, the machine will go to standby mode. The fax does not detect cng signal during 15 seconds from tad operation starting. The fax starts cng signal detect...

  • Page 106

    Page: 59 service guide okioffice 84 chapter 2 installation 2.9.3 technical functions example (1) service bit setting 1) purpose to enable or disable the following functions: drum and toner counter display (clear) l service default report printing l protocol dump report printing l ring response time ...

  • Page 107

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 108

    Page: 60 service guide okioffice 84 chapter 2 installation technical functions 01 to 11 (table 2.9.3, 1/5).

  • Page 110

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 111

    Page: 61 service guide okioffice 84 chapter 2 installation technical functions 12 to 16 (table 2.9.3, 2/5).

  • Page 112

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner.

  • Page 113

    Exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 114

    Page: 62 service guide okioffice 84 chapter 2 installation technical functions 24 to 27 (table 2.9.3, 3/5).

  • Page 116

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 117

    Page: 63 service guide okioffice 84 chapter 2 installation technical functions 17 to 23 (table 2.9.3, 4/5).

  • Page 119

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 120

    Page: 64 service guide okioffice 84 chapter 2 installation technical functions 28 to 31 (table 2.9.3, 5/5) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 121

    Page: 65 service guide okioffice 84 chapter 2 installation 2.9.4 user's functions this section explains the items usually set up by general users. Table 2.9.4 shows the initial setting items and their purposes. Each f.P. Can be accessed by entering the corresponding function number on function progr...

  • Page 122

    Page: 66 service guide okioffice 84 chapter 2 installation user's function table 2.9.4 (1/5) no. Item specifications 1 auto dial 10 one-touch keys are provided. 1) one-touch dial max. 32 digits for each location number. In addition to an ordinary location number, another alternate location number ca...

  • Page 123

    Page: 67 service guide okioffice 84 chapter 2 installation user's function table 2.9.4 (2/5) no. Item specifications 4 automatic redial ptt parameter setting disables or enables this feature, and specifies redial times and redial intervals. * see 2.9.12 for the service bit condition depending on ptt...

  • Page 124

    Exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 125

    Page: 68 service guide okioffice 84 chapter 2 installation user's function table 2.9.4 (3/5) no. Item specifications 12 broadcast (memory transmission) max. 90 remote locations can be specified by the following means: one-touch keys (with of without a group list). L two-digit auto dial codes. L 10 k...

  • Page 126

    Page: 69 service guide okioffice 84 chapter 2 installation user's function table 2.9.4 (4/5) no. Item specifications 18 no toner reception the fax can temporarily store received messages in memory when toner has run out. The messages are printed when toner has been newly supplied or an operator pres...

  • Page 127

    Page: 70 service guide okioffice 84 chapter 2 installation user's function table 2.9.4 (5/5) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 128

    Page: 71 service guide okioffice 84 chapter 2 installation user's initial settings note: the font displayed on the lcd operation panel may differ from fonts written in this manual. 2)-1 one touch key operations.

  • Page 130

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 131

    Page: 72 service guide okioffice 84 chapter 2 installation table 2.9.4 (1/5) user's initial settings (one-touch key program) f+ot no. Item specifications 1 delayed transmission (tx) this function enters a message transmission time(s) and location(s) for execution at a specified time. 5 specified tim...

  • Page 132

    5 polling transmission/reception polling tx: the documents placed on the feeder can be collected by a remote station. 5 polling transmission/reception bulletin polling: a kind of polling transmission. Bulletin polling enables polling transmission many times until deleting the documents form one remo...

  • Page 133

    Page: 73 service guide okioffice 84 chapter 2 installation table 2.9.4 (2/5) user's initial settings (one-touch key) f+ot no. Item specifications 6 report printing the report print in 6 items are as follows: 1. Activity report 2. Broadcast message confirmation report (multi location) 3. Activity mem...

  • Page 134

    7 counter display (clear) the operation for displaying and clearing the print counters in five ways are as follows: 1. Drum counter when i/d unit reaches run-out time, "change drum" is appeared in lcd. Under above condition, user can see the drum message and clear. However, no. Of counter is not sho...

  • Page 135

    Page: 74 service guide okioffice 84 chapter 2 installation table 2.9.4 (3/5) user's initial settings (one-touch key program) f+ot no. Item specifications 8 location program 1. One-touch key one-touch keys allow registering: (1) telephone number (numeral, -, p and space) in 32 digits. (2) alternate f...

  • Page 136

    9 user's programs 1. Function program 01: mcf (single-loc.) 02: mcf (multi-loc.) 03: err. Report (mcf.) 04: image in mcf. 05: sender id 06: monitor volume 07: buzzer volume 08: closed network 09: tx mode default 10: t/f timer prg. 11: ring response 12: distinctive ring 13: 1’st paper size 14: user l...

  • Page 137

    Page: 75 service guide okioffice 84 chapter 2 installation table 2.9.4 (4/5) user's initial settings (one-touch key program) f+ot no. Item specifications 9 2. Dial parameters 1. Redial tries 2. Redial interval 3. Dial tone detect 4. Busy tone detect 5. Mf (tone)/dp (pulse) 6. Pulse dial rate 7. Puls...

  • Page 138

    6. Memory password programming registering the password required (4-digit numerals) for outputting the data received by memory only reception mode or change from memory only reception mode. When the four-digit numeric password is registered. The password input is required upon outputting documents o...

  • Page 139

    Page: 76 service guide okioffice 84 chapter 2 installation table 2.9.4 (5/5) user's initial settings (one-touch key program) f+ot no. Item specifications 10 printer cleaning this drum cleaning function removes the residual toner on the i/d (image drum) unit surface by printing. Copyright 1998, okida...

  • Page 140

    Page: 77 service guide okioffice 84 chapter 2 installation table 2.9.4 (1/5) user's initial settings (functions program) 2)-2 function program f+ot no. Item specifications 01 message confirmation report (single location) enables or disables the automatic message confirmation report printing after a ...

  • Page 141

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 142

    Page: 78 service guide okioffice 84 chapter 2 installation table 2.9.4 (2/5) user's initial settings (functions program) f+ot no. Item specifications 08 closed network the fax compares lower four digits of tsi/csi received from remote station with fax numbers registered locally for one-touch dial an...

  • Page 143

    13 1'st cassette paper size selects a4, letter or legal 13", legal 14" other by this function. The operator must select the preferable paper size as the machine cannot detect the paper size automatically. Note: other message appears when operating with mfp terminal. Copyright 1998, okidata, division...

  • Page 144

    Page: 79 service guide okioffice 84 chapter 2 installation table 2.9.4 (3/5) user's initial settings (functions program) f+ot no. Item specifications 14 user language a choice of 2 languages for lcd and print message are available. Ger, fre etc. Are displayed instead of another. Engl1/another select...

  • Page 145

    20 remote diagnosis enables or disables the remote diagnosis function when the machine can allow remote diagnosis from remote center. On: enables off: disables copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates ...

  • Page 146

    Page: 80 service guide okioffice 84 chapter 2 installation table 2.9.4 (4/5) user's initial settings (functions program) f+ot no. Item specifications 21 pc/fax switch to enable or disable pc interface function. When pc reception is not available, for example, application is not activated on the pc o...

  • Page 147

    26 restricted access restricted access limits accessible users by setting a password beforehand. Inputting the password then enables the user's access to the machine (fax terminal). On: enables restricted access off: disables copyright 1998, okidata, division of oki america, inc. All rights reserved...

  • Page 148

    Page: 81 service guide okioffice 84 chapter 2 installation table 2.9.4 (5/5) user's initial settings (functions program) f+ot no. Item specifications 27 width reduction this function can print characters written at the edges of a document. Switches the reduction of the horizontal scanning direction....

  • Page 149

    Page: 82 service guide okioffice 84 chapter 2 installation 2.9.5 user's functions example note: the fonts displayed on the lcd operation panel may differ from fonts written in this manual. 1) function program copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata...

  • Page 150

    Page: 83 service guide okioffice 84 chapter 2 installation table 2.9.5 (1/3) user's functions.

  • Page 152

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 153

    Page: 84 service guide okioffice 84 chapter 2 installation table 2.9.5 (2/3) user's functions.

  • Page 155

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 156

    Page: 85 service guide okioffice 84 chapter 2 installation table 2.9.5 (3/3) user's functions.

  • Page 158

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 159

    Page: 86 service guide okioffice 84 chapter 2 installation 2.9.5 user's functions note1: resolution & original of tx mode default setting can be selected by using --> key. Note2: when the service bit is set to "off" and the corresponding bit of xpara of national code is set to "off", ring response a...

  • Page 160

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 161

    Page: 87 service guide okioffice 84 chapter 2 installation 2.9.5 user's functions example 2) ring response time before specifying the ring response time, set the service bit on following the operations shown in 2.9.3 (1). (service bit setting). Copyright 1998, okidata, division of oki america, inc. ...

  • Page 162

    Page: 88 service guide okioffice 84 chapter 2 installation 2.9.5 user's functions example 3) dial parametes (in case the service bit is "off".) to get the "dial parameter" message on the display, perform the same operetion as table 2.9.6. (dial parammeters settings)..

  • Page 164

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 165

    Page: 89 service guide okioffice 84 chapter 2 installation 2.9.5 user's functions example the following table can be set depending on the national codes even is the series bit is "off". Dial parameters setting if the service bit "off".

  • Page 166

    Note: the blank in the table is not indicated on the lcd. Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 167

    Page: 90 service guide okioffice 84 chapter 2 installation 2.9.6 clock adjustment copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 168

    Page: 91 service guide okioffice 84 chapter 2 installation 2.9.7 dual access operation.

  • Page 170

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 171

    Page: 92 service guide okioffice 84 chapter 2 installation 2.9.8 system data programming tsi/csi (default: blank) l registration of sender id (default: blank) l registration of telephone number for the call-back message (default: blank) l.

  • Page 172

    Note: use the unique key to input special symbols..

  • Page 173

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 174

    Page: 93 service guide okioffice 84 chapter 2 installation 2.9.9 dial parameter settings procedure l default settings of dial parameters l dial parameter settings (table 2.9.9) l copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bp...

  • Page 175

    Page: 94 service guide okioffice 84 chapter 2 installation procedure 1) procedure the following shows the case in which the serve bit is on..

  • Page 177

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 178

    Page: 95 service guide okioffice 84 chapter 2 installation default settings of dial parameters 2) purpose copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 179

    Page: 96 service guide okioffice 84 chapter 2 installation dial parameters settings (table 2.9.9) no. Item specifications 01 redial tries switches on the redial times to meet the regulations of the installed country. 0 to 10 tries (in one-try steps) 1 to 5 tries for fre. 02 redial interval switches ...

  • Page 180

    Page: 97 service guide okioffice 84 chapter 2 installation 2.9.10 off-line tests (1) purpose activate self-diagnosis which includes: print test l cpu-rom version printing l cpu-ram check l prog version printing l language version printing l default version printing l ram check l ram check (memory bo...

  • Page 181

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 182

    Page: 98 service guide okioffice 84 chapter 2 installation self-diagnosis print test (example).

  • Page 184

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 185

    Page: 99 service guide okioffice 84 chapter 3 brief technical description electrophotographic process flow copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 186

    Page: 100 service guide okioffice 84 chapter 3 brief technical description 3.1 fundamentals of the electro-photographic process the electro-photographic process involves six sub-processes: (1) charging (2) exposure (3) development (4) transfer (5) fusing (6) cleaning outline of each process is expla...

  • Page 187

    4 transfer the recording paper is placed over the image drum surface and a positive charge, opposite in polarity to the toner, is applied to the reverse side of the paper from the transfer roller. The toner is attracted by the positive charge and is transferred to the paper. The toner charged negati...

  • Page 188

    Page: 101 service guide okioffice 84 chapter 3 brief technical description 3.2 actual electrophotographic process the electrophotographic process of the unit consists of six essential processes. The following figure 3.2.1 provides a general description. * process: 1 : charging 2 : exposure 3 : devel...

  • Page 189

    Page: 102 service guide okioffice 84 chapter 3 brief technical description 3.3 board and units the following one board, main control board, and three units constitute the facsimile transceiver machine. Main control board mcnt: (r51) l network control unit board ncu: (unc; wn5, dn5; fn5) l operation ...

  • Page 190

    Page: 103 service guide okioffice 84 chapter 3 brief technical description block diagram (figure 3.3.1) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 191

    Page: 104 service guide okioffice 84 chapter 3 brief technical description 3.4 overall dimension and mechanical structure.

  • Page 192

    Figure 3.4.1 overall dimension and mechanical structure copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 193

    Page: 105 service guide okioffice 84 chapter 4 disassembly 4.1 general this chapter explains the procedures for replacement of assemblies and units in the field. Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any update...

  • Page 194

    Page: 106 service guide okioffice 84 chapter 4 disassembly 4.1 precautions for parts replacement 1 before starting disassembly and reassembly, always turn the ac power switch off, and pull out the ac plug. Note: unplug the ac power cord from the wall outlet first and then from the facsimile. 2 do no...

  • Page 195

    Page: 107 service guide okioffice 84 chapter 4 disassembly 4.2 tools table 4.1 shows the tools required for the replacement of parts such as circuit boards and mechanical units. Table 4.1 tools copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partn...

  • Page 196

    Page: 108 service guide okioffice 84 chapter 4 disassembly 4.3 how to disassemble and reassemble this section explains how to disassemble and reassemble the fax. Figure 4.3 shows the disassembly procedure flow as generalization. L the detailed disassembly procedure is explained from sub-section 4.3....

  • Page 197

    Page: 109 service guide okioffice 84 chapter 4 disassembly disassembly procedure flow figure 4.3 (1/2).

  • Page 198

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner.

  • Page 199

    Exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 200

    Page: 110 service guide okioffice 84 chapter 4 disassembly disassembly procedure flow figure 4.3 (2/2).

  • Page 201

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 202

    Page: 111 service guide okioffice 84 chapter 4 disassembly whole unit picture copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 203

    Page: 112 service guide okioffice 84 chapter 4 disassembly 4.3.1 led print head two led print heads are available.. (208 mm (8.18 inch) width or 216 mm (8.5 inch) width) 1 disassembly procedure a) open the cover assembly-top by raising the cover in the direction of the arrow. B) disconnect the pc co...

  • Page 204

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 205

    Page: 113 service guide okioffice 84 chapter 4 disassembly 4.3.2 image drum unit, rear-cover, cover-main and board-ncu 1 disassembly procedure a) open the cover assembly-top by raising. B) remove the image drum unit. C) cover-rear: remove the cover-rear by removing the screw 1 and the detach the fix...

  • Page 206

    D) first, move the center of guide-paper (l) and (r) of holder assembly, and then, open the cover-main from the rear side..

  • Page 207

    E) board-ncu: remove the board-ncu by removing the two screw 3 and disconnect the connector (cn3) from board-ncu. Note: board-ncu can be removed without removing the cover-main. 2 reassembly procedure.

  • Page 208

    Reverse the disassembly procedures. Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 209

    Page: 114 service guide okioffice 84 chapter 4 disassembly 4.3.3 unit 0-48 ope-panel 1 (1) disassembly procedure a) first, carry out the disassembly procedure up to the point of the (item (e). Cover-main). B) dismount the printer-unit. C) open the ope-panel assembly. D) ope panel assembly: remove th...

  • Page 210

    E) remove the two screws and remove the lcd. 2 reassembly procedure reverse the disassembly procedures. Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 211

    Page: 115 service guide okioffice 84 chapter 4 disassembly 4.3.4 separation rubber, sensor frame roller assembly (u) frame assembly-scanner (u) 1 disassembly procedure a) separation rubber: the separation rubber can be removed from the frame assembly-scanner (u). B) roller assembly sensor: remove th...

  • Page 212

    2 reassembly procedure reverse the disassembly procedure. Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 213

    Page: 116 service guide okioffice 84 chapter 4 disassembly 4.3.5 roller assembly-adf, cis, lever-pc1 and pc2 cis = contact image sensor 1 disassembly procedure a) first, carry out the disassembly procedures up to the point of the 4.3. B) dismount the printer-unit. (see section 4.3.18) c) remove the ...

  • Page 214

    D) turn the frame assembly-scanner inside out and perform the disassembly procedure. E) remove the plate scanner (l) by removing the two screws. F) remove the speaker..

  • Page 215

    G) remove the plate assembly-scanner (r) and plate earth adf by removing the three screws. H) remove the plate scanner (b) by removing the two screws and the part of the fixing hooks. I) remove the cis (contact image sensor). J) motor-s: remove the motor-s by removing the connector of motor and the ...

  • Page 216

    K) photo-sensor (pc1, pc2): after disconnecting the two connectors, remove the photo-coupler sensors pc1 and pc2 on the plate scanner b by pressing the latch using the flat screwdriver or like. 2 reassembly procedure reverse the disassembly procedures. Copyright 1998, okidata, division of oki americ...

  • Page 217

    Page: 117 service guide okioffice 84 chapter 4 disassembly 4.3.6 board-r51, power supply unit, board hv-p6l 1 disassembly procedure a) first, carry out the disassembly procedures up to the point of the 4.3.2 (cover-rear, cover-main, etc). B) board-r51: disconnect all connectors. C) remove the five s...

  • Page 218

    2 reassembly procedure reverse the disassembly procedures. Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 219

    Page: 118 service guide okioffice 84 chapter 4 disassembly 4.3.7 printer unit section [base frame unit].

  • Page 221

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 222

    Page: 119 service guide okioffice 84 chapter 4 disassembly 4.3.8 transfer roller (1) disassembly procedure a) open the cover assembly-top by raising and remove the id unit b) remove the right claw. Then, dismount transfer roller, two registration bearing, and gear t. (2) reassembly procedure reverse...

  • Page 223

    Page: 120 service guide okioffice 84 chapter 4 disassembly 4.3.9 high-voltage power supply unit (tlhv/olhv) 1 disassembly procedure a) first, carry out procedure up to the point of the 4.3.2 (id unit, cover-rear, cover-ncu and cover-main). B) remove the three screws (1) and draw out high-voltage pow...

  • Page 224

    Page: 121 service guide okioffice 84 chapter 4 disassembly 4.3.10 holder assembly 1 disassembly procedure a) first, carry out procedure up to the point of the 4.3.2 (id unit, cover-rear, cover-ncu and cover-main). B) dismount the bracket-package. C) dismount the holder-paper. D) unlock and dismount ...

  • Page 225

    Page: 122 service guide okioffice 84 chapter 4 disassembly 4.3.11 plate-side m and gear-idle 1 disassembly procedure perform parts replacement while making the base frame assembly stand so that plate-side m will face upward. A) first, carry out procedure up to the point of the 4.3.2 (id unit, cover-...

  • Page 226

    Page: 123 service guide okioffice 84 chapter 4 disassembly 4.3.12 registration roller 1 disassembly procedure a) first, carry out procedure up to the point of the 4.3.2 (id unit, cover-rear, cover-ncu and cover-main). B) move registration roller to the right and dismount it by lifting. (two registra...

  • Page 227

    Page: 124 service guide okioffice 84 chapter 4 disassembly 4.3.13 drive shaft e (eject) and eject roller 1 disassembly procedure a) first, carry out procedure up to the point of the 4.3.2 (id unit, cover-rear, cover-ncu and cover-main). B) remove two screws 1 from cover heat assembly (section 4.3.14...

  • Page 228

    Page: 125 service guide okioffice 84 chapter 4 disassembly 4.3.14 heat assembly this section explains how to dismount the heat assembly and parts in the assembly. 1 disassembly procedure a) first, carry out procedure up to the point of the 4.3.2 (id unit, cover-rear, cover-ncu and cover-main). B) di...

  • Page 229

    2 reassembly procedure reverse the disassembly procedures copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 230

    Page: 126 service guide okioffice 84 chapter 4 disassembly 4.3.15 pressure roller b (back up roller) 1 disassembly procedure a) first, carry out procedure up to the point of the 4.3.2 (id unit, cover-rear, cover-ncu and cover-main). B) dismount the high-voltage power supply board. (see section 4.3.1...

  • Page 231

    Page: 127 service guide okioffice 84 chapter 4 disassembly 4.3.16 hopping shaft assembly 1 disassembly procedure a) first, carry out procedure up to the point of the 4.3.2 (id unit, cover-rear, cover-ncu and cover-main). B) dismount the high-voltage power supply board. (see section 4.3.10) c) dismou...

  • Page 232

    Page: 128 service guide okioffice 84 chapter 4 disassembly 4.3.17 paper sensor e, paper sensor exit and toner sensor assembly 1 disassembly procedure a) first, carry out procedure up to the point of the 4.3.2 (id unit, cover-rear, cover-ncu and cover-main). B) dismount the high-voltage power supply ...

  • Page 233

    Page: 129 service guide okioffice 84 chapter 4 disassembly 4.3.18 printer unit 1 disassembly procedure a) first, carry out procedure up to the point of the 4.3.2 (id unit, cover-rear, cover-ncu and cover-main). B) remove bracket-package with three screws, then disconnect cable-flat from connector on...

  • Page 234

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 235

    Page: 130 service guide okioffice 84 chapter 5 adjustments 5.1 setting of led print head drive time adjustment point: technical function no. 26. L * to bring the lcd up to technical function, press select function key once, copy key twice and "2" key (in case of no message in memory). Note: when the...

  • Page 236

    Page: 131 service guide okioffice 84 chapter 5 adjustments settings of technical function no. 26 (table 5.1.1) notes: the luminous intensity ranking is determined by the first, second and third digits from the right in the led print head (i.E. In ---xx122, 122 is the luminous intensity ranking.) thi...

  • Page 237

    Page: 132 service guide okioffice 84 chapter 5 adjustments 5.2.1 confirmation items the clock frequency and power voltage of the machine are not possible to adjust in the field. However, their measurement procedures are described here for confirmation of clock frequency and each voltage. 1 clock fre...

  • Page 238

    Page: 133 service guide okioffice 84 chapter 5 adjustments 5.2.2 measurement 1 turn the ac power off. 2 carry out the disassembly procedure up to cover assembly-top, frame assembly-scanner, and unit-printer. (refer to the mechanical disassembly and reassembly in chapter 4.) 3 connect extension cable...

  • Page 240

    Figure 5.2.1 measurement points on r51board copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 241

    Page: 134 service guide okioffice 84 chapter 6 cleaning and maintenance 6.1 replacement of consumables the user (or service personnel) is required to replace the following items as consumable parts. Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business ...

  • Page 242

    Page: 135 service guide okioffice 84 chapter 6 cleaning and maintenance user replaceable items life no. Part name expected use before replacement reference item no. In fig.6.1.1 1 toner cartridge 1500 sheets/5% duty (itu-t document sample no.1) (for the second or later cartridge to a new i/d unit) *...

  • Page 243

    Page: 136 service guide okioffice 84 chapter 6 cleaning and maintenance service parts life no. Part name expected use before replacement reference item no. In fig.6.2.1 1 fuser unit 30,000 sheets for okioffice 84. (3) 2 separation rubber the separation rubber will not require replacement for at leas...

  • Page 244

    Page: 137 service guide okioffice 84 chapter 6 cleaning and maintenance consumables diagram (figure 6.1.1) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 245

    Page: 138 service guide okioffice 84 chapter 6 cleaning and maintenance reliability table (6.1.1) no. Item specifications 1 document feeder jam occurrence and misfeeds in the automatic document feeder will be less than one in 500 operations for all specified documents. 2 recording paper feeder jam o...

  • Page 246

    Page: 139 service guide okioffice 84 chapter 6 cleaning and maintenance 6.2 preventative maintenance the recommended preventative maintenance of the following items should be performed twice a year (once a year is the absolute minimum) after the machine is installed. Table 6.2.1 describes the preven...

  • Page 247

    Page: 140 service guide okioffice 84 chapter 6 cleaning and maintenance preventative maintenance (table 6.2.1) no. Part name maintenance procedure reference item no. In fig.6.2.1 1 roller-scan clean with water. (1) 2 roller-adf clean with water. If the surface of this roller becomes dirty and the di...

  • Page 248

    Page: 141 service guide okioffice 84 chapter 6 cleaning and maintenance preventative maintenance diagram (figure 6.2.1) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Co...

  • Page 249

    Page: 142 service guide okioffice 84 chapter 6 cleaning and maintenance 6.3 printer counter display/clear (user) note: the fonts displayed on the lcd operation panel may differ from the fonts written in this manual. 1. Purpose a user can clear the image drum counter (only when "change drum soon" mes...

  • Page 250

    User can clear only drum counter. After having cleared the drum counter, warning message will disappear. 2-2. Procedure the following shows the case when the service bit has been set off & toner count clear = on..

  • Page 252

    Note: clear operation no. Of print counter and scan counter (pages) will appear but cannot be cleared by user. User can clear drum counter and toner counter. After having cleared the drum counter, warning message will be disappeared. Copyright 1998, okidata, division of oki america, inc. All rights ...

  • Page 253

    Page: 143 service guide okioffice 84 chapter 6 cleaning and maintenance 6.4 printer counter display/clear (service) 1. Purpose the service personnel can clear and check the following counters. Image drum l toner l image drum (total) l print l scan l 2. Procedure the following shows the case when the...

  • Page 254

    Note: drum (t) will be used to know the total in-use life of the machine..

  • Page 255

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 256

    Page: 144 service guide okioffice 84 chapter 6 cleaning and maintenance 6.5 self-diagnosis test 1. Purpose to check roms, rams and printing function. 2. Procedure test report will be automatically printed out with the following items: l a) pattern 1 all white (32 lines) b) pattern 2 stair pattern (3...

  • Page 257

    F) cpu-rom version cpu-rom in case cpu-rom is good. Hash ok in case cpu-rom is not good. Hash ng cpu-ram in case cpu-ram is good. Ok in case cpu-ram is not good. Ng g) prog version prog in case prog is good. Hash ok in case prog is not good. Hash ng h) language version language in case language is g...

  • Page 258

    Page: 145 service guide okioffice 84 chapter 6 cleaning and maintenance self-diagnosis test sample (figure 6.5.1).

  • Page 259

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 260

    Page: 146 service guide okioffice 84 chapter 6 cleaning and maintenance 6.6 sensor calibration test 1. Purpose to adjust the linearity of the contact image sensor output levels..

  • Page 261

    Note: after adjustment of levels, check the copy quality by copying test charts or documents copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 262

    Page: 147 service guide okioffice 84 chapter 6 cleaning and maintenance 6.7 led test 1. Purpose to check all leds on operation panel by lighting. 2. Procedure.

  • Page 263

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 264

    Page: 148 service guide okioffice 84 chapter 6 cleaning and maintenance 6.8 tone send test 1. Purpose to send the g3 tonal frequencies to the line. 2. Procedure *1: when indicating "2100hz or 1100hz sending", extend the tone send test for 30 more seconds by pressing the start key..

  • Page 265

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 266

    Page: 149 service guide okioffice 84 chapter 6 cleaning and maintenance 6.9 high-speed modem send test 1. Purpose to check the telephone line quality in combination with a remote station programmed to the high-speed modem receive test mode. 2. Procedure copyright 1998, okidata, division of oki ameri...

  • Page 267

    Page: 150 service guide okioffice 84 chapter 6 cleaning and maintenance high-speed modem send and receive test diagram (figure 6.9.1).

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    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 270

    Page: 151 service guide okioffice 84 chapter 6 cleaning and maintenance 6.10 high-speed modem receive test note: this procedure requires coordination with technical staff at the remote location. In addition, both locations must have a telephone handset connected to each machine. 1. Purpose to check ...

  • Page 271

    Page: 152 service guide okioffice 84 chapter 6 cleaning and maintenance 6.11 mf send test 1. Purpose to send the multi-frequencies of tone dialing to the line. 2. Procedure copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for...

  • Page 272

    Page: 153 service guide okioffice 84 chapter 6 cleaning and maintenance 6.12 tone (tel/fax) 1. Purpose to check the pseudo-ring back tone of tel/fax automatic switching. 2. Procedure copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange...

  • Page 273

    Page: 154 service guide okioffice 84 chapter 6 cleaning and maintenance 6.13 protocol data dump printing 1. Purpose to analyze the transmitted/received g3 protocol signals. 2. Procedure manual printout of the last communication. L (a) manual printout copyright 1998, okidata, division of oki america,...

  • Page 274

    Page: 155 service guide okioffice 84 chapter 6 cleaning and maintenance data dump description (figure 6.13.1) 1) data sample figure shows the printer data as a sample..

  • Page 275

    Figure 6.13.1 protocol dump data (sample: at transmitter side) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 276

    Page: 156 service guide okioffice 84 chapter 6 cleaning and maintenance analysis from the data (figure 6.13.2) the printed out data permits to analyze g3 facsimile communication protocol signals between two facsimile machines. Figure 6.13.2 (below) shows the result of an analysis on the printed data...

  • Page 277

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 278

    Page: 157 service guide okioffice 84 chapter 6 cleaning and maintenance facsimile control field conversion table table 6.14.1 (below) shows all facsimile control field (fcf) signals which are needed to analyze the printed out protocol dump data. Some signals have two different hexadecimal codes in a...

  • Page 279

    Page: 158 service guide okioffice 84 chapter 6 cleaning and maintenance 6.14 system reset 1. Purpose to clear or initialize the following data to factory default settings. (a) location data (b) configuration data (default) 2. Procedure.

  • Page 280

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 281

    Page: 159 service guide okioffice 84 chapter 6 cleaning and maintenance 6.15 service code the service code can be printed on activity report to recognize the result of each communication. 1. The activity report indicates the code "0000", should a communication terminates on normal status as 2. A ser...

  • Page 282

    Page: 160 service guide okioffice 84 chapter 6 cleaning and maintenance service code list [table 6.15.1] (1/2) code description 0000 successful end of communication. 1080 stop ey has been pressed while calling a remote fax. 10a2 busy tone detected. 14c0 dial tone not detected. 14c1 line current not ...

  • Page 283

    Page: 161 service guide okioffice 84 chapter 6 cleaning and maintenance service code list [table 6.15.1] (2/2) code description 39c1 decoder hardware error, (cannot detect end of picture). 41a0 there was no response each time in response to the three post commands. 41a6 received signal other than th...

  • Page 284

    Page: 162 service guide okioffice 84 chapter 7 troubleshooting 7.1 overview this chapter contains: (a) troubleshooting flow charts related to general operations (b) troubleshooting flow charts by test operations (c) troubleshooting flow charts placing an emphasis on mechanical portions section no. N...

  • Page 285

    Page: 163 service guide okioffice 84 chapter 7 troubleshooting 7.1 overall troubleshooting flow chart note: r51 board for okioffice 84 is designated as the mcnt board in this flowchart..

  • Page 287

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 288

    Page: 164 service guide okioffice 84 chapter 7 troubleshooting 7.2 no lcd operation.

  • Page 290

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 291

    Page: 165 service guide okioffice 84 chapter 7 troubleshooting 7.3 alarm led on copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner.

  • Page 292

    Exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 293

    Page: 166 service guide okioffice 84 chapter 7 troubleshooting 7.4 printing test failure copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 294

    Page: 167 service guide okioffice 84 chapter 7 troubleshooting 7.5 no local copy.

  • Page 296

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 297

    Page: 168 service guide okioffice 84 chapter 7 troubleshooting 7.6 auto dial failure.

  • Page 299

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 300

    Page: 169 service guide okioffice 84 chapter 7 troubleshooting 7.7 transmission problem this section explains how to localize the cause of problems occurred after completion of connection with a remote station..

  • Page 301

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 302

    Page: 170 service guide okioffice 84 chapter 7 troubleshooting 7.8 auto reception failure.

  • Page 304

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 305

    Page: 171 service guide okioffice 84 chapter 7 troubleshooting 7.9 reception problem this section explains how to localize the cause of problems occurred after completion of connection with a remote station..

  • Page 306

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 307

    Page: 172 service guide okioffice 84 chapter 7 troubleshooting 7.10 sensor calibration test copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 308

    Page: 173 service guide okioffice 84 chapter 7 troubleshooting 7.11 led test.

  • Page 309

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 310

    Page: 174 service guide okioffice 84 chapter 7 troubleshooting 7.12 tone send test copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 311

    Page: 175 service guide okioffice 84 chapter 7 troubleshooting 7.13 high-speed modem test.

  • Page 312

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 313

    Page: 176 service guide okioffice 84 chapter 7 troubleshooting 7.14 mf send test.

  • Page 314

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 315

    Page: 177 service guide okioffice 84 chapter 7 troubleshooting 7.15 tone (tel/fax) send test.

  • Page 316

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 318

    Page: 178 service guide okioffice 84 chapter 7 troubleshooting 7.16 no acoustic line monitor there are two source routes of acoustic line monitor: (a) general communication signal (b) dp pulse signal.

  • Page 319

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 320

    Page: 179 service guide okioffice 84 chapter 7 troubleshooting 7.17 power supply unit (a) low-voltage selection replace the power supply unit when output voltage written on the item a3 in the appendix a is not normal. (b) high-voltage selection t.B.D. (to be determined) copyright 1998, okidata, divi...

  • Page 321

    Page: 180 service guide okioffice 84 chapter 7 troubleshooting 7.18 no document feeding note: this section places an emphasis on troubleshooting of mechanical portions. Therefore, it is recommended to replace the mcnt board first and, then if not solved, follow this flow chart..

  • Page 322

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 323

    Page: 181 service guide okioffice 84 chapter 7 troubleshooting 7.19 multiple document feeding definition: multiple document feeding. Multiple documents are not separated and they are fed at the same time during one feeding operation. . Copyright 1998, okidata, division of oki america, inc. All right...

  • Page 324

    Page: 182 service guide okioffice 84 chapter 7 troubleshooting 7.20 document skew.

  • Page 326

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 327

    Page: 183 service guide okioffice 84 chapter 7 troubleshooting 7.21 document jam.

  • Page 329

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 330

    Page: 184 service guide okioffice 84 chapter 7 troubleshooting 7.22 printer unit 7.22.1 precautions 7.22.2 troubleshooting flow charts of printer unit copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this m...

  • Page 331

    Page: 185 service guide okioffice 84 chapter 7 troubleshooting 7.22.1 precaution 1. Points to check before correcting image troubles (1) is the printer being run in proper ambient conditions? (2) have the supplies (toner) and the routine replacement part (ep unit) been replaced properly? (3) is the ...

  • Page 332

    Page: 186 service guide okioffice 84 chapter 7 troubleshooting 7.22.2 troubleshooting flow charts of printer unit overall troubleshooting flow chart. Table 7.22.1 lcd message trouble list.

  • Page 333

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 334

    Page: 187 service guide okioffice 84 chapter 7 troubleshooting troubleshooting flow chart 1: copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 335

    Page: 188 service guide okioffice 84 chapter 7 troubleshooting 1: top cover is open copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 336

    Page: 189 service guide okioffice 84 chapter 7 troubleshooting 2: replace image drum message copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 337

    Page: 190 service guide okioffice 84 chapter 7 troubleshooting 3: engine controller error copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 338

    Page: 191 service guide okioffice 84 chapter 7 troubleshooting 4: fuser unit thermal error copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 339

    Page: 192 service guide okioffice 84 chapter 7 troubleshooting 5: paper jams.

  • Page 340

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 341

    Page: 193 service guide okioffice 84 chapter 7 troubleshooting 6: no paper tray or no paper copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 342

    Page: 194 service guide okioffice 84 chapter 7 troubleshooting sample image problems (figure 7.22.1) table 7.22.3 image troubles abnormal symptom reference figure troubleshooting flow chart no. Images are light or blurred as a whole. Fig. (a) 7 the blank background is smeared. Fig. (b) 8 blank paper...

  • Page 343

    Page: 195 service guide okioffice 84 chapter 7 troubleshooting action items (printer unit-lcd message) table 7.22.2 no. Action 1 check mcnt board. 2 check p2h/p6l board cover open switch, cover open switch connection. Check mcnt board. 3 return to section 7.1. 4 replace the image drum (ep) unit. 5 c...

  • Page 344

    Page: 196 service guide okioffice 84 chapter 7 troubleshooting 7: light or blurred output copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 345

    Page: 197 service guide okioffice 84 chapter 7 troubleshooting 8: smeared background on output copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 346

    Page: 198 service guide okioffice 84 chapter 7 troubleshooting 9: blank output copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 347

    Page: 199 service guide okioffice 84 chapter 7 troubleshooting 10: vertical black stripes on output copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 348

    Page: 200 service guide okioffice 84 chapter 7 troubleshooting 11: evenly spaced marks on output.

  • Page 349

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner.

  • Page 350

    Exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 351

    Page: 201 service guide okioffice 84 chapter 7 troubleshooting 12: missing print on output copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 352

    Page: 202 service guide okioffice 84 chapter 7 troubleshooting 13: vertical white stripes on output.

  • Page 354

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 355

    Page: 203 service guide okioffice 84 chapter 7 troubleshooting 14: poor fusing copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 356

    Page: 204 service guide okioffice 84 chapter a board descriptions preface this manual has been designaed to provide basic information concerning the electric section for the component-level maintenance of the okioffice 84/okifax 4500 facsimile transceiver. It includes such information which will hel...

  • Page 357

    Page: 205 service guide okioffice 84 chapter a board descriptions service caution copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 358

    Page: 206 service guide okioffice 84 chapter a board descriptions a1.1 unit configuration and block diagram 1. The unit configuration is as follows: okioffice84 figure a.1.1 unit configuration (modifying) (1) main control board (r51) (2) network control unit (ncu) (3) power supply unit (mpw1446 (230...

  • Page 359

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 360

    Page: 207 service guide okioffice 84 chapter a board descriptions okioffice 84 block diagram figure (a1.2.1) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 361

    Page: 208 service guide okioffice 84 chapter a board descriptions block diagram abbreviations a/d analog-to-digital converter amp amplifier batt battery cni connector number i cpu central processing unit d-motor drum motor drv motor drive dram dynamic random-access memory iexseed300 image processing...

  • Page 362

    Page: 209 service guide okioffice 84 chapter a board descriptions a1.2 function of each unit the section describes the principal functions of the individual units of the okioffice84 electrical sections. Figure a1.2.1 shows the pertinent block diagram. Main control (r51) board operation panel unit: o...

  • Page 363

    Page: 210 service guide okioffice 84 chapter a board descriptions main control (r51) board ioga4 (input/output gate array 4) 1/4: cpu sh7034 l basic processor scanning control picture processing control printing control sio (serial input/output) control ioga4 (input/output gate array 4) 2/4, 3/4, 4/...

  • Page 364

    Page: 211 service guide okioffice 84 chapter a board descriptions operation panel unit: o4w board supervision of switches on operation panel l control of leds on operation panel l control of lcd on operation panel l led : light-emitting diode lcd : liquid crystal display copyright 1998, okidata, div...

  • Page 365

    Page: 212 service guide okioffice 84 chapter a board descriptions ncu board unc5 -------- for us and canada wn5 --------- for denmark, norway, sweden, finland, the netherlands, ireland, portugal, new zealand, australia, belgium, spain, greece and other countries dn5 ---------- for germany, switzerla...

  • Page 366

    Page: 213 service guide okioffice 84 chapter a board descriptions power supply unit conversion of main alternating current to the following direct currents: l +5v dc power supply -8v dc power supply +24 v dc power supply +30 v dc power supply supplying of main alternating current to fuser unit l gen...

  • Page 367

    Page: 214 service guide okioffice 84 chapter a board descriptions a2.1 signal flow explanation copy mode g3 send mode g3 receive mode 300bps send mode 300bps receive mode report printing memory transmission memory reception copyright 1998, okidata, division of oki america, inc. All rights reserved. ...

  • Page 368

    Page: 215 service guide okioffice 84 chapter a board descriptions copy mode figure a2.1 shows the picture signal route in local copy mode. One-line picture data is transferred to a/d converter (analog/digital) via operational amplifier from the scanning unit (cis: contact image sensor) as an analog ...

  • Page 369

    Page: 216 service guide okioffice 84 chapter a board descriptions copy picture signal (figure a2.1) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 370

    Page: 217 service guide okioffice 84 chapter a board descriptions g3 send mode figure a2.2 shows the g3 send picture signal route. In the g3 mode, the data transfer route from the scan unit up to the dram is the same as in the copy mode described in (1). The picture data for one-line is transferred ...

  • Page 371

    Page: 218 service guide okioffice 84 chapter a board descriptions g3 send picture signal (figure a2.2) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 372

    Page: 219 service guide okioffice 84 chapter a board descriptions g3 receive mode figure a2.3 shows the g3 receive picture signal route. In the g3 mode, the high-speed picture signal arriving from the telephone line at l1 and l2 of ncu passes through the transformer t1 and the amplifier and is input...

  • Page 373

    Page: 220 service guide okioffice 84 chapter a board descriptions g3 receive picture signal (figure a2.3) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 374

    Page: 221 service guide okioffice 84 chapter a board descriptions 300 bps send mode figure a2.4 shows the 300bps send protocol signal route. In g3 communication, this is the route of the procedural control signals (pre-message, post-message phases etc.) at 300bps. The protocol send data is read into...

  • Page 375

    Page: 222 service guide okioffice 84 chapter a board descriptions 300 bps send signal (figure a2.4) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 376

    Page: 223 service guide okioffice 84 chapter a board descriptions 300 bps receive mode figure a2.5 shows 300bps receive protocol signal route. In g3 communication, this is the route of the procedural control signals (pre-message, post-message phases etc.) at 300bps. The 300bps modulated signals rece...

  • Page 377

    Page: 224 service guide okioffice 84 chapter a board descriptions 300 bps receive signal (figure a2.5) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 378

    Page: 225 service guide okioffice 84 chapter a board descriptions report printing figure a2.6 shows the report printing signal route. This signal route describes the printing route of character data used to print activity report, message confirmation report, etc. The report data is read into dram in...

  • Page 379

    Page: 226 service guide okioffice 84 chapter a board descriptions report print signal (figure a2.6) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 380

    Page: 227 service guide okioffice 84 chapter a board descriptions memory transmission this signal route describes the memory transmission used in broadcast mode, delayed broadcast mode, etc. The stored encoded data undergoes buffering, passes through cpu, modem and ncu and then sent out to the telep...

  • Page 381

    Page: 228 service guide okioffice 84 chapter a board descriptions memory reception this signal route describes the memory reception used in no-paper mode, no-toner reception, confidential mode, etc. The encoded data received by the same route of (3) g3 receive mode undergoes the picture data process...

  • Page 382

    Page: 229 service guide okioffice 84 chapter a board descriptions a3.1.1 r51 circuit diagram (page 1/12) 1. Block diagram the circuit diagram shown on page 1/12 consists of an input/output gate array ic2 (ioga4), crystal oscillator circuit and reset signal generator. Figure a3.1.1 shown the block di...

  • Page 383

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 384

    Page: 230 service guide okioffice 84 chapter a board descriptions a3.1.2 r51 circuit diagram (page 2/12) 1. Block diagram the circuit diagram shown on page 2/12 consists of flash memory, dram, real time clock ic and back up battery circuit. Figure a3.1.2 shows the block diagram of flash memory, dram...

  • Page 385

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 386

    Page: 231 service guide okioffice 84 chapter a board descriptions a3.1.3 r51 circuit diagram (page 3/12) 1. Block diagram the audio monitor circuit on page 3/12 that consists of ic11 (analog switch ic) and ic5 (amplifier) generates the following audio monitor. Line monitoring l buzzer signals l figu...

  • Page 387

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 388

    Page: 232 service guide okioffice 84 chapter a board descriptions a3.1.4 r51 circuit diagram (page 4/12) 1. Block diagram the circuit diagram shown on page 4/12 consists of the following functions: ic6 (a/d converter) l connector cn5 that provides an interface between r51 board and cis (contact imag...

  • Page 389

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 390

    Page: 233 service guide okioffice 84 chapter a board descriptions a3.1.5 r51 circuit diagram (page 5/12) 1. Block diagram the circuit diagram shown on page 5/12 consists of modem (14.4 kbps). Modem consists the following functions: modulation/demodulation l modulation type: 1) itu-t rec. V17 (14400/...

  • Page 391

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 392

    Page: 234 service guide okioffice 84 chapter a board descriptions a3.1.6 r51 circuit diagram (page 6/12) 1. Block diagram the circuit diagram shown on page 6/12 consists of connector cn12 that provides an interface between r51 board and led print head. Figure a3.1.6 shows the related signals and blo...

  • Page 393

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 394

    Page: 235 service guide okioffice 84 chapter a board descriptions a3.1.7 r51 circuit diagram (page 7/12) 1. Block diagram the circuit diagram shown on page 8/12 consists of the following connectors: connector cn10 that provides an interface between r51 board and ncu board. L connector cn3 that provi...

  • Page 395

    S : send signal (picture data/protocol/tonal signals/pb tone etc.) l r : received signal (picture data/protocol/tonal signals etc.) l ope interface signals txdope : this signal transmits sequentially the contents of each data of txd (led on/off information, etc.) to l ope in serial data from cpu. Rx...

  • Page 396

    Page: 236 service guide okioffice 84 chapter a board descriptions a3.1.8 r51 circuit diagram (page 8/12) 1. Block diagram the circuit diagram shown on page 8/12 consists of the following functions and connectors: ic9 (drum motor driver) l connector cn13 that provides an interface between r51 board a...

  • Page 397

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 398

    Page: 237 service guide okioffice 84 chapter a board descriptions a3.1.9 r51 circuit diagram (page 9/12) 1. Block diagram the circuit diagram shown on page 9/12 consists of the following function and connectors: ta1 (send motor driver) l tr508/tr507 (clutch driver) l connector cn1 that provides an i...

  • Page 399

    Setting of the chopping operation l setting of the motor excitating method (1-2/2-1 phase excitation) l a) send motor rotation control there are several cases of the rotation operation: forward rotation for feeding documents. Case 1: feeding document from hopper to the position where one line data i...

  • Page 400

    Page: 238 service guide okioffice 84 chapter a board descriptions a3.1.10 r51 circuit diagram (page 10/12) 1. Block diagram the circuit diagram shown on page 10/12 consists of the following connectors: connector cn11 that provides an interface between r51 board and bi-centro i/f. L figure a3.1.12 sh...

  • Page 401

    Page: 239 service guide okioffice 84 chapter a board descriptions a3.1.11 r51 circuit diagram (page 11/12) 1. Block diagram the circuit diagram shown on page 11/12 consists of the following connector: connector cn6 that provides an interface between r51 board and power supply unit (p2h). L connector...

  • Page 402

    Ioga4 ports for referring to and processing by the ioga4 (cpu). Figure a3.1.13 shows sensors and switch control. Inlet sensor 1 l write sensor (to detect the paper top position for printing) l outlet sensor l toner end sensor l cover status switch l the functions of various sensors are described in ...

  • Page 403

    The acon control signal on the secondary side is transmitted to the primary side via pc4 to turn triac tra1 for ac voltage supply to the heater. 3) high-voltage and medium-voltage control high voltages are activated by ioga4 and generated by the high-voltage circuit inside the power supply unit. The...

  • Page 404

    Page: 240 service guide okioffice 84 chapter a board descriptions a3.1.12 r51 circuit diagram (page 12/12) 1. Block diagram the circuit diagram consists of the following connector: • connector cn6 that provides an interface between r51 board and power supply unit. 2. Function 1) sensor and switch co...

  • Page 405

    Figure a3.1.15 sensor and switch control 2) fuser unit temperature control the heater in the fuser unit is controlled by the thermistor, ioga and cpu to keep the heater roller surface within a prescribed temperature range. The cpu supervises the status of pc0 (a/d converter input section) periodical...

  • Page 406

    Figure a3.1.16 fuser unit temperature control 3) high-voltage and medium-voltage control high voltages are activated by ioga and generated by the high-voltage circuit inside the power supply unit. The ch (charge) voltage of about -1.35kv is used for the charge roller. The tr1/tr2 (transfer) voltage ...

  • Page 407

    Figure a3.2.17 high/medium voltages control 1. Block diagram the circuit diagram shown on page 12/12 consists of the iexseed300 (image processing lsi) of ic16 and sram. Figure a3.1.16 shows the related signals of iexseed300. 2. Functions iexseed300 is developed lsi for the image processing. Iexseed3...

  • Page 408

    Page: 241 service guide okioffice 84 chapter a board descriptions a3.1.13 sensor and switch control figure copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 409

    Page: 242 service guide okioffice 84 chapter a board descriptions a3.1.14 fuser unit temperature control figure copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 410

    Page: 243 service guide okioffice 84 chapter a board descriptions a3.1.15 high/medium voltages control figure copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 411

    Page: 244 service guide okioffice 84 chapter a board descriptions a3.1.16 related signals of iexseed figure copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 412

    Page: 245 service guide okioffice 84 chapter a board descriptions a3.2 ope (04w) circuit diagram 1. Block diagram figure a3.2.1 shows a block diagram of ope (04w). The 04w (operation unit) circuit consists of the following blocks: 1) ic1 (one chip mos-cpu) output ports l setting leds on and off: 8 p...

  • Page 413

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 414

    Page: 246 service guide okioffice 84 chapter a board descriptions a3.3 power supply unit for okioffice 84 a3.3.1 048 pow (120v/230v) circuit diagram a3.3.2 olhv/tlhv circuit diagram (2/2) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exc...

  • Page 415

    Page: 247 service guide okioffice 84 chapter a board descriptions a3.3.1 048 pow (120v/230v) circuit diagram important: oki data corporation recommends that maintenance of the power supply unit (mpw1446 (230v)/mpw1546 (120v)) be performed by replacement of a unit, not by replacement of components. T...

  • Page 416

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 417

    Page: 248 service guide okioffice 84 chapter a board descriptions block diagram of 048 pow (figure a3.5.1) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 418

    Page: 249 service guide okioffice 84 chapter a board descriptions a3.4 p2h circuit diagram this circuit consists of photo-sensors and high voltage generation unit. Note: if the high-voltage unit inside the olhv/tlhv circuit board is replaced, the output voltage and current output from the terminals ...

  • Page 419

    Provide an output exceeding a preset voltage. 1.3 tr1 and tr2 (p2h) 1) the tr1 high-voltage is obtained by rectifying the secondary output of q17 switching circuit by a voltage-doubler rectifier. 2) tr1 output circuit has both constant current (hereinafter called cc) and constant voltage (hereinafte...

  • Page 420

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 421

    Page: 250 service guide okioffice 84 chapter a board descriptions a3.5 unc, wn5, fn5 and dn5 circuit diagram the ncu board is selected from unc, wn5, fn5 and dn5 because it differs depending on country's specifications. Therefore, the ncu circuit diagram is destined for the following countries. Unc ...

  • Page 422

    Note 1: this procedure may be omitted depending on the dial parameters. Note 2: mf (multi-frequency) tone is generated by the modem and transferred to the telephone line via the ncu board. 3. Explanation of cn3 terminals cn3 pin no. Terminal name explanation unc (us, ca) 1 rev2 detection and output ...

  • Page 423

    8 sr (rl2) this circuit connects the line with the telephone. During facsimile transmission, it discon-nects the telephone. 11 pp (rl6) if this circuits detects mf or cng tones without seizuring a line, it sets a proper receiving sensitivity. 12 dp (rl3) this circuit generates pulse dials. If the ci...

  • Page 424

    1 lightning arresters (ar1, 2) the nominal operating voltage is 500 v. When connecting the ground of the arrestor to the chassis, tighten arg on the pcb with a screw. At this time, the pcb is grounded through the power cable. The tb1 arrestor ground terminal can also be used to connect to the earth ...

  • Page 425

    Off-hook state of the telephone while the main equipment is hunting a line. Usually, ic2 is short-circuited by the cml relay (7) in the standby state and rl7 is used for off-hook detection. 17 impedance switches (cn15 to cn45) these circuits set the impedance according to the line requirement. 220: ...

  • Page 426

    Can also be used to connect to the earth directly. 3 diode bridge (db1) this circuit rectifies the loop current so that the dc circuit characteristics are not affected by a polarity change over the line. 4 dc circuits (q3, r540, r541, c13, r9, r209) these circuits provide dc characteristics accordin...

  • Page 427

    27 ficc (ic6) this circuits reduces the dc resistance to increase the loop current momentarily to assure operation of the switch at line seizuring. 28 constant current circuits (q1 and q2) these circuits provide dc characteristics according to the french line requirement. 29 shunt (rl5) this circuit...

  • Page 428

    4 dc circuits (q3, r540, r541, c13, r9, r209) these circuits provide dc characteristics according to the line requirements. 5 impedance matching network (r523, r536, c503, ...) this circuit matches the impedance between the line and equipment to reduce reflection of transmitted signals. It provides ...

  • Page 429

    21 telephone cascade/parallel switches (s1-1 to s1-2) to connect the telephone connected to the tel1 terminal and an external trephone in parallel, set the switches to on. 22 16 khz lpf (l7, l8, c7, c507, c9) this low-pass filter removes 16 khz metering pulses. 23 transmitter amplifier (ic501 1/2) t...

  • Page 430

    Remote control: to control a fax from telephone set a. Parallel pick up (pp): to control a fax from telephone set b. Why a pp function is needed! L l as shown in the following block diagram, telephone sets b, a, a' and a'' are connected to a telephone line. Since a, a' and a'' are connected to the l...

  • Page 431

    Page: 251 service guide okioffice 84 chapter b print operation description b1.1 electrophotographic processor the electrophotographic processor prints out the image data to be sent from the main control board on sheets of paper. Figure b1-1 shows the layout drawing of the electrophotographic process...

  • Page 432

    This pulse motor of 48 steps/rotation is two-phase excited by the signal from the main control board; it performs feeding control by switching normal rotation to reverse rotation or vice versa and turning on/off the electromagnetic clutch. The relationship between the main motor, electromagnetic clu...

  • Page 433

    Page: 252 service guide okioffice 84 chapter b print operation description schematic drawing of okioffice 84 paper feeding copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata...

  • Page 434

    Page: 253 service guide okioffice 84 chapter b print operation description b1.2 electrophotographic process (1) electrophotographic process the electrophotographic process is outlined below. 1 charging the surface of the image drum is charged negatively and uniformly by applying the dc voltage to th...

  • Page 435

    Page: 254 service guide okioffice 84 chapter b print operation description electrophotographic process diagram (figure b1.3) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okida...

  • Page 436

    Page: 255 service guide okioffice 84 chapter b print operation description b.2.1 operations process explanation hopping printing and warm-up charging exposure development transfer fusing cleaning copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business par...

  • Page 437

    Page: 256 service guide okioffice 84 chapter b print operation description hopping as shown in the figure below, the clutch for hopping is turned on/off according to current on/off to a coil. When the clutch is off when the clutch is on when the clutch is on, the hopping gear engages with the clutch...

  • Page 438

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 439

    Page: 257 service guide okioffice 84 chapter b print operation description printing and warm-up at warm-up rotate the pulse motor (main) in the a direction. The planetary gear rotates in the a' direction, dislocating its position in the a" direction. This causes the planetary gear to be separated fr...

  • Page 440

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 441

    Page: 258 service guide okioffice 84 chapter b print operation description charging charging is performed by applying dc voltage to the charge roller that is in contact with the surface of the image drum. Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata bus...

  • Page 442

    Page: 259 service guide okioffice 84 chapter b print operation description exposure light emitted from the led head irradiates the negatively charged surface of the image drum. The surface potential of the irradiated surface attenuates to form the electrostatic latent image corresponding to the imag...

  • Page 443

    Page: 260 service guide okioffice 84 chapter b print operation description development the electrostatic latent image on the surface of the image drum is changed to a visible toner image by applying a toner to it. Development is performed in the contact part between the image drum and developing rol...

  • Page 444

    Page: 261 service guide okioffice 84 chapter b print operation description transfer the transfer roller is composed of conductive sponge material. This roller is set so that the surface of the image drum and sheets of paper will adhere closely. A sheet of paper is placed on the surface of the image ...

  • Page 445

    Page: 262 service guide okioffice 84 chapter b print operation description fusing the transferred unfused toner image is fused to a sheet of paper because heat and pressure are applied when it passes between the heat roller and backup roller. The teflon-coated heat roller contains a 400 w heater (ha...

  • Page 446

    Page: 263 service guide okioffice 84 chapter b print operation description cleaning after transfer has terminated, the cleaning roller temporarily draws in the untransferred residual toner adhering to the image drum with static electricity and then returns it to the image drum. Copyright 1998, okida...

  • Page 447

    Page: 264 service guide okioffice 84 chapter b print operation description b.3 paper jam detection the okioffice 84 monitors the paper status when the power supply is on and during printing. In the following cases, the unit interrupts the printing process as a paper jam. Printing can be recovered by...

  • Page 448

    Page: 265 service guide okioffice 84 chapter b print operation description paper feed check list type of error supervisory sensor reference value error paper feed error electromagnetic clutch on/ paper sensor on 69.8 35 ----- paper feed jam1 paper sensor on/ outlet sensor on 122.9 20.0 ----- paper s...

  • Page 449

    Page: 266 service guide okioffice 84 chapter b print operation description timing chart for paper feed (tray feed) copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 450

    Page: 267 service guide okioffice 84 chapter b print operation description b.4 toner low detection hardware configuration of toner sensor l the figure below shows the hardware configuration of the toner sensor. Hardware configuration of toner sensor toner detection method l (1) toner sensor monitori...

  • Page 451

    (2) the basic rotation cycle of the toner sensor is as follows: t time basic rotation cycle of toner sensor 4.9 sec. Toner low time t1 > 1.2 sec. Toner full time 1.2 sec. > t1 > copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx...

  • Page 452

    Page: 268 service guide okioffice 84 chapter b print operation description b.5 cover open opening the stacker cover turns off the microswitch on the high-voltage power supply board to suspend +5 v supply to the high voltage power supply. This results in the stop of all high-voltage outputs. At the s...

  • Page 453

    Page: 269 service guide okioffice 84 chapter c illustrated parts list illustrated parts list.

  • Page 454

    Copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 455

    Page: 270 service guide okioffice 84 chapter c illustrated parts list section 1: cabinet assembly 1/2.

  • Page 457

    Rev. No. Oki part number description q’ty remarks 2 holder-assy 3 56112101 led head 1 rspl 4 56633401 cable flat assy. 1 rspl 6 40709901 image drum unit 1 consumable 8a 40588801 dc power supply unit-120v 1 8b 40588901 dc power supply unit-230v 1 9 40687601 board-r51 1 10a 40044501 board - unc 1 11 4...

  • Page 458

    Page: 271 service guide okioffice 84 chapter c illustrated parts list section 1: cabinet assembly 2/2.

  • Page 460

    Rev. No. Oki part number description q’ty remarks 27 40024001 guide-paper (u) 1 28 50928701 spring: head 2 29 40024101 guide-paper (l) 1 31 b tapping screw 32 b tapping screw fa 33 b screw b 34 screw 35 screw 1 36 40773601 sheet - shield (led) 39 40140801 bracket-damper 1 40 40148201 gear-damper 1 4...

  • Page 461

    Page: 272 service guide okioffice 84 chapter c illustrated parts list section 2: printer unit rev. No. Okidata p/n description q’ty remarks 1 n/a printer unit assembly see section 11 5 40607401 h.V. Board p2h 1 6 40413401 cover - hv 7 screw f copyright 1998, okidata, division of oki america, inc. Al...

  • Page 462

    Page: 273 service guide okioffice 84 chapter c illustrated parts list section 3: operator panel rev. No. Okidata p/n description q’ty remarks 1 40712201 op panel assy. 1 2 00073320 sheet: f048 1 3 00073413 sheet : one touch 1 4 40023601 sheet: cover 1 copyright 1998, okidata, division of oki america...

  • Page 463

    Page: 274 service guide okioffice 84 chapter c illustrated parts list section 4: operator panel assembly.

  • Page 464

    Rev. No. Oki parts number description q’ty okidata p/n 1 n/a case-ope(t) refer to section 3 2 40086701 board-04w 1 3 n/a holder-lcd 4 n/a button-function 5 n/a 6 7 9 10 b screw a 11 copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange ...

  • Page 465

    Page: 275 service guide okioffice 84 chapter c illustrated parts list section 5: frame assembly scanner (l) rev. No. Okidata p/n description q’ty 1 frame-scanner (l) 2 40019401 lever-pc1 1.

  • Page 466

    3 40019501 lever-pc2 1 4 40019601 roller assy.-adf 1 5 40020201 plate-earth adf 1 6 40020601 piece-exit 2 7 40020703 spring-exit 2 8 40127501 connection: cord-speaker 1 9 40141401 contact image sensor - a4 1 12 n/a plate-scanner (l) 13 n/a plate assy.-scanner (r) 14 40020301 gear-z95/14 1 15 4002050...

  • Page 467

    Page: 276 service guide okioffice 84 chapter c illustrated parts list section 6: plate assembly-scanner (b) rev. No. Okidata p/n description q’ty remarks 1 n/a plate-scanner (b) 1 n/a 3 50410001 sensor: photo 2 rspl copyright 1998, okidata, division of oki america, inc. All rights reserved. See the ...

  • Page 468

    Page: 277 service guide okioffice 84 chapter c illustrated parts list section 7: plate assembly-scanner (r) rev. No. Okidata p/n description q’ty remarks 1 n/a plate-scanner (r) n/a 2 56513101 motor-s 151/175 1 rspl 3 n/a b screw fa n/a copyright 1998, okidata, division of oki america, inc. All righ...

  • Page 469

    Page: 278 service guide okioffice 84 chapter c illustrated parts list section 8: frame assembly-scanner (u) rev. No. Okidata p/n description q’ty remarks 1 n/a frame-scanner (u) n/a 2 5333980 back-up plate adf 1 rspl 3 40267001 separation rubber assembly 1 rspl 4 5 40021401 spring-pinch (l) 1 rspl.

  • Page 470

    6 40021501 spring-pinch (r) 1 rspl 7 40745801 guide-sensor (a) 8 40021701 guide-sensor (b) 2 rspl 9 40481101 adf spring 1 rspl 10 cord-earth 11 n/a b screw fa 1 n/a 12 40021202 roller assy.-sensor 1 rspl 13 40022001 bearing-s 1 rspl 14 40020801 gear-z31 1 rspl 15 plate-support 1 16 40026301 bar-disc...

  • Page 471

    Page: 279 service guide okioffice 84 chapter c illustrated parts list section 9: cover assembly-top.

  • Page 472

    Rev. No. Okidata p/n description q’ty remarks 1 n/a cover-top refer to section 1 2 40606701 holder-led 1 rspl 3 n/a guide-document (l) n/a 4 n/a guide-document (r) n/a 5 spring 1 6 51024901 plate exit 2 n/a 7 53502401 eject roller a 2 n/a 8 51239603 pinion gear b 1 n/a 10 n/a b screw fa n/a copyrigh...

  • Page 473

    Page: 280 service guide okioffice 84 chapter c illustrated parts list section 10: plate assembly-base rev. No. Okidata p/n description q’ty remarks 1 plate-base refer to section 1 2 rubber a 3 sheet-insulation 1.

  • Page 474

    4 40128001 cord: flat 1 5 sheet-fg copyright 1998, okidata, division of oki america, inc. All rights reserved. See the okidata business partner exchange (bpx) for any updates to this material. (http://bpx.Okidata.Com).

  • Page 475

    Page: 281 service guide okioffice 84 chapter c illustrated parts list section 11: printer base frame unit (1 of 2) rev. No. Okidata p/n description q’ty 1 40593201 frame: unit assy. 1.

  • Page 476

    3 50410601 paper sensor e 2 4 40721301 separatory assy 1 6 40781701 compression spring s 1 7 50410801 toner sensor assy 1 8 40496401 motor: pulse 1 9 40709901 drum: image 1 consumable 10 52111701 cartridge: toner 1 consumable 11 40779601 hopping roller 1 12 50708801 holder: roller (hopping roller) 1...

  • Page 477

    Page: 282 service guide okioffice 84 chapter c illustrated parts list section 11: printer base frame unit (2 of 2) rev. No. Okidata p/n description q’ty remarks 31 53348301 roller: registration 1 33 40737801 gear: t 1.

  • Page 478

    34 40713601 roller: transfer 1 35 50931701 spring: bias (l) (back up roller) 1 36 51609201 bearing: bu (back up roller) 2 37 40594601 roller: pressure b 1 38 51021901 guide: paper (r) 1 39 51021801 guide: paper (l) 1 40 50708901 holder: paper 1 41 50410701 sensor: paper exit 1 42 50931101 spring: ho...

  • Page 479

    Page: 283 service guide okioffice 84 chapter c illustrated parts list section 12: cables.

  • Page 480

    Rev. No. Okidata p/n description q’ty remarks 1 40635401 connection cord-wire (ac) 1.

  • Page 481

    2 40040001 connection cord-wire (ope) 1 3 40040201 connection cord-wire (cis) 1 4 40040301 connection cord-wire (pc1/2) 1 5 55505203 tfc-20-10-10 core 1 6 55505204 tfc-23-11-14 core 1 7 55505702 ssc-40-12-m core 1 9 55506201 fpc-25-12 core 1 10 56621001 tel/line cable 1 11 56618901 ac cord 1 14 5550...