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Oki FAX 5250 Service Manual

Other manuals for FAX 5250: Handbook

Summary of FAX 5250

  • Page 1

    Service guide okifax 5250/5400 chapter 0 about this manual front cover okifax 5250 & 5400 facsimile products adobe acrobat printable reference copy of the okidata service training manual. 11/16/99 note: this adobe acrobat version of the okidata service training manual was built with the pictures ren...

  • Page 2

    Table of contents page service guide okifax 5250/5400 0 introduction preface 1 1 general information 1.1 general performance 2 1.2 general user's function 3 1.3 general maintenance functions 4 1.4 general appearance 5 1.5 basic performance specifications 6 ....Table 1.5.1 (1/9) basic performance spe...

  • Page 3

    Table of contents page ....2.9.4 user's functions 48 ........Feature specifications 49 ........Dual access combination table (1/2) 50 ........Dual access combination table (2/2) 51 ........2)-1 one-touch key operations 52 ........One-touch key program settings (table 2.9.4) 53 ........2)-2 function ...

  • Page 4

    Table of contents page 5.3 measurement 91 ....Measurement points on m17 board 92 6 cleaning and maintenance 6.1 consumables replacement 93 ....Service technician replaceable 94 ....Replaceable items diagram 95 ....Others - reliability 96 6.2 routine inspection 97 ....Routine inspection 98 ....Preven...

  • Page 5

    Table of contents page ....7.21 document jam 140 ....7.22 printer unit 141 ........7.22.1 precautions 142 ........7.22.2 troubleshooting flow charts of printer unit 143 ............Overall troubleshooting flowchart 144 ............1: top cover is open 145 ............2: replace image drum message 14...

  • Page 6

    Table of contents page ....A3.1.3 e17 - audio monitor circuit diagram 188 ........Block diagram of audio monitor circuit 189 ....A3.1.4 e17 - cis (contact image sensor) block diagram 190 ........Block diagram of cis (contact image sensor) 191 ....A3.1.5 iexseed300 diagram 192 ........Related signals...

  • Page 7

    Table of contents page ............5-5 cover open circuit 238 ....A3.3.2 1vp (for 120v)/2vp (for 230v) circuit diagram (2/2) 239 ........5-6 high-voltage section 240 ........5-6-1 functional overview 241 ........5-6-2 sb2, db1, db2 and cb 242 ........5-6-3 tr1 and tr2 243 ........5-6-4 ch 244 .........

  • Page 8

    Table of contents page ........8) cleaning of rollers 287 ....B.3 errors 288 ........B.3.1 errors list 289 ........B.3.2 major trouble errors 290 ............B.3.2.1 fuser error 291 ............B.3.2.2 fan error 292 ............B.3.2.3 paper feed monitoring 293 ............B.3.2.4 2'nd tray communic...

  • Page 9

    Table of contents page ....3.3 parts replacement methods 334 ........3.3.1 stepping motor (hopping) 335 ........3.3.2 tqsb2-pcb 336 ........3.3.3 hopping roller shaft assy and one-way clutch gear 337 4. Troubleshooting 338 ....4.1 precautions prior to the troubleshooting 339 ....4.2 preparations for...

  • Page 10

    Table of contents page i. General information 382 ....Okidata's web site 383.

  • Page 11

    Page: 1 service guide okifax 5250/5400 chapter 0 introduction preface this manual is intended to be used for installing and maintaining okifax 5250/5400 facsimile unit. Maintenance of the okifax 5250/5400 is assumed to be conducted at the following levels: assembly-level maintenance for mechanical p...

  • Page 12

    Page: 2 service guide okifax 5250/5400 chapter 1 general information 1.1 general performance (01) type of appearance desktop type l (02) applicable lines public switched telephone network (pstn) l private branch exchange (pbx) l (03) compatibility itu-t group 3 facsimile transceiver l (04) document ...

  • Page 13

    Copy mode: 7.7 line/ mm (fine) 300 dot/inch (ex.Fine) (13) scanning method 2592 bits contact image sensor l (14) recording resolution a) horizontal: 300 dots/inch b) vertical variable: automatically adjusted to the paper length. (300 to 395 dot/inch), std mode (3.85 to 5.06 line/mm) fine mode (7.7 t...

  • Page 14

    By installing the optional board (ctr board), the mfp l function can be realized: pc printer function pc scanner function pc fax modem function location programming function note: for details, see "product specification for mfp"..

  • Page 15

    Page: 3 service guide okifax 5250/5400 chapter 1 general information 1.2 general user's function (01) transmit mode automatic transmit mode l manual transmit mode l (02) receive mode automatic receive mode l manual receive mode l tel/fax automatic switchover mode l tad mode l memory only receive mod...

  • Page 16

    (30) programmed key operation ("f" key + "ot" key) (31) auto dialing one-touch dialing of5250: 15 / of5400: 30 l two-digit automatic dialing of5250: 64 / of5400: 99 l keypad dialing l chain dialing l mixed dialing l group dialing of5250: 10 / of5400: 20 l (32) real-time dialing (in case of optional ...

  • Page 17

    Page: 4 service guide okifax 5250/5400 chapter 1 general information 1.3 general maintenance functions (01) self-diagnosis cpu rom/ram check l flash (/mask) memory check (program, language, default) l ram check l ram check (memory board: option) l pc-if board (parallel) check l print test l (02) sen...

  • Page 18

    Page: 5 service guide okifax 5250/5400 chapter 1 general information 1.4 general appearance figure 1.4.1 shows the general appearance. Figure 1.4.2 shows the control panel. General appearance of the okifax 5250 / okifax 5400

  • Page 20

    Page: 6 service guide okifax 5250/5400 chapter 1 general information 1.5 basic performance specifications note: tf: technical function setting fp: function program setting ot: one-touch key pressed f: select function key pressed table 1.5.1 (1/9) basic performance specifications table 1.5.1 (2/9) ba...

  • Page 21

    Page: 7 service guide okifax 5250/5400 chapter 1 general information table 1.5.1 (1/9) basic performance specifications no. Item specifications 1 applicable line 1) public switched telephone network (pstn) 2) private branch exchange (pbx) (ot9+2) 2 line interface 1) impedance 600 ohms balanced note:...

  • Page 22

    Page: 8 service guide okifax 5250/5400 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 202...

  • Page 23

    Page: 9 service guide okifax 5250/5400 chapter 1 general information table 1.5.1 (3/9) basic performance specifications no. Item specifications 9 recording paper or sheet for the first or second recording paper cassette: 1) type: plain paper cut (bond paper: xerox 4200 type or equivalent) 2) size: i...

  • Page 24

    Page: 10 service guide okifax 5250/5400 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 or horizontal addressing deviation (+ or - 2 mm) of recording paper. 1) printable ar...

  • Page 25

    These tables do not include vertical and horizontal addressing error (+/- 3 mm) of recording paper. No. Item specifications 12 copy stacking the fax can discharge printed copies and stack them face down. Maximum sheets on the copy stacker: 100 note*: oki data recommended paper.

  • Page 26

    Page: 11 service guide okifax 5250/5400 chapter 1 general information table 1.5.1 (5/9) basic performance specifications no. Item specifications 13 scanning resolution horizontal: 300 dot/inch l vertical: transmission mode: 3.85 line/mm (std), 7.7 line/mm (fine), or 300 dot/inch, (ex. L fine) copy m...

  • Page 27

    Page: 12 service guide okifax 5250/5400 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....

  • Page 28

    Page: 13 service guide okifax 5250/5400 chapter 1 general information table 1.5.1 (7/9) basic performance specifications no. Item specifications 26 protocol 1) itu-t rec. T.30 2) oki data special protocol high-speed protocol the t.30 protocol signal from the transmitting station is sent at message t...

  • Page 29

    Page: 14 service guide okifax 5250/5400 chapter 1 general information table 1.5.1 (8/9) basic performance specifications no. Item specifications 32 telephone handset (option) general telephone function is available while the power is on. Note: in the fax special versions, general telephone is availa...

  • Page 31

    Page: 15 service guide okifax 5250/5400 chapter 1 general information table 1.5.1 (9/9) basic performance specifications in operation power off mode during storage unit temperature 50 - 90 (10-32) 32 - 110 (0-43) 14-110 (-10 - 43) o f ( o c) humidity 20 - 80 10-90 10-90 % rh maximum wet bulb tempera...

  • Page 32

    Minimum difference between wet and dry bulb temperatures 35.6 (2) 35.6 (2) ---- o f ( o c) 1. Storage conditions specified above apply to the machine in packed condition. 2. Temperature and humidity must be in the range where no condensation occurs. No. Item specifications 38 dimension (main body) 1...

  • Page 33

    Page: 16 service guide okifax 5250/5400 chapter 1 general information 1.6 reports and lists the following table shows reports and lists specifications. Note: f +ot: press function and one-touch key fp: function program setting tf: technical function setting no. Item specifications 01 call-back messa...

  • Page 34

    Page: 17 service guide okifax 5250/5400 chapter 1 general information call-back message (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.

  • Page 35

    Page: 18 service guide okifax 5250/5400 chapter 1 general information sender id format: (example).

  • Page 36

    Page: 19 service guide okifax 5250/5400 chapter 1 general information tsi printing (example) local date and time printing (example) note: tsi printing (tf+05) local date and time printing (tf+04).

  • Page 37

    Page: 20 service guide okifax 5250/5400 chapter 1 general information cancel report format: power outage report (example) note: memory reception only is printed on the mode in the report as called..

  • Page 38

    Page: 21 service guide okifax 5250/5400 chapter 1 general information activity report (example).

  • Page 39

    Explanation of example.

  • Page 40

    (1) title of the report (2) date and time when the report was printed (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...

  • Page 41

    Page: 22 service guide okifax 5250/5400 chapter 1 general information message confirmation report.

  • Page 42

    Explanation of example (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) com...

  • Page 43

    Page: 23 service guide okifax 5250/5400 chapter 1 general information broadcast entry report (example).

  • Page 45

    * 1: identification of remote station personal id, tsi, location id or dial number (printing in this order depending if information is programmed in remote fax machine)..

  • Page 46

    Page: 24 service guide okifax 5250/5400 chapter 1 general information broadcast confirmation report (example) * 1: identification of remote station personal id, tsi, location id or dial number (printing in this order depending if information is programmed in remote fax machine)..

  • Page 47

    Page: 25 service guide okifax 5250/5400 chapter 1 general information confidential reception report (example).

  • Page 48

    Page: 26 service guide okifax 5250/5400 chapter 1 general information telephone directory (examples 1 through 6) example 1 of 6.

  • Page 50

    Example 2 of 6.

  • Page 52

    Example 3 of 6 example 4 of 6.

  • Page 54

    Example 5 of 6.

  • Page 56

    Example 6 of 6.

  • Page 59

    Page: 27 service guide okifax 5250/5400 chapter 1 general information configuration report.

  • Page 62

    Page: 28 service guide okifax 5250/5400 chapter 2 installation procedures 2.1 general the following flowchart outlines the installation procedure..

  • Page 65

    Page: 29 service guide okifax 5250/5400 chapter 2 installation procedures 2.2 site selection precautions for installation (01) fluctuation in line voltage 120vac (102v to 127v) l 230vac (198v to 264v) l (02) room temperature 50 to 90°f (10 to 32°c) (03) humidity 20 to 80% rh (04) operating environme...

  • Page 67

    Page: 30 service guide okifax 5250/5400 chapter 2 installation procedures 2.3 unpacking unpacking procedure 1 (01) remove tape on the top of the carton box and open its cover. (02) take out the accessory box from the carton box. (03) take out the machine with plastic wrapper from the box. Unpacking ...

  • Page 68

    Unpacking procedure 3.

  • Page 70

    Page: 31 service guide okifax 5250/5400 chapter 2 installation procedures 2.4 check of contents after having taken out the machine and accompanied accessories from the carton box, check the contents according to the following list: contents list item no. Name q'ty remarks 1 okifax 5250 / of 5400 mac...

  • Page 71

    Page: 32 service guide okifax 5250/5400 chapter 2 installation procedures 2.5 installation of attachments (01) items image drum (id) unit (already installed) l toner cartridge l recording paper l document stacker l (02) procedure 1) toner cartridge peel off the fixed tape attached to the copy stacke...

  • Page 72

    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 toner deflection, and peel off the seal gently. Ensure that the plastic tab on the right-hand side of the toner cartridge recess lines up with the groove on the l toner ca...

  • Page 73

    Clean the toner scattered in the vicinity of the toner cartridge using a cloth moistened with cold water. Do not l use hot water since it makes the toner stick there. Close the copy stacker until the buttons have been locked completely. L (03) recording paper cassette installation note: about 250 sh...

  • Page 74

    (04) document stacker installation place the document stacker into the hanging position. L.

  • Page 75

    Page: 33 service guide okifax 5250/5400 chapter 2 installation procedures 2.6 ac cord connection the power supply is provided as follows. Nominal input voltage 120vac (voltage range 102 to 127vac) nominal input voltage 230vac (voltage range 198 to 250vac) check whether the ac voltage of your input i...

  • Page 76

    Page: 34 service guide okifax 5250/5400 chapter 2 installation procedures 2.7 telephone and line connections (1) procedure connect the lines. L.

  • Page 77

    Page: 35 service guide okifax 5250/5400 chapter 2 installation procedures 2.8 packing for shipment caution: when packing the unit for shipment, remove the image drum and toner from the unit and ship separately! Failure to do so will result in damage to the machine..

  • Page 78

    Page: 36 service guide okifax 5250/5400 chapter 2 installation procedures 2.9 initial settings 2.9.1 key operation flowchart 2.9.2 technical functions 2.9.3 technical functions example 2.9.4 user's functions 2.9.5 user's functions examples 2.9.6 clock adjustment 2.9.7 dual access operation 2.9.8 sys...

  • Page 79

    Page: 37 service guide okifax 5250/5400 chapter 2 installation procedures 2.9.1 general procedure of key operation figure 2.9.1 below shows the general procedure of key operation..

  • Page 84

    Page: 38 service guide okifax 5250/5400 chapter 2 installation procedures 2.9.2 technical functions this section explains setting items generally conducted by service personnel, not by users. The tables show the initial setting items and their purposes. (the default settings differ by country.) each...

  • Page 85

    Page: 39 service guide okifax 5250/5400 chapter 2 installation procedures technical functions table this table shows the initial setting items and their purposes. The default settings may differ by country. Each item can be accessed by entering the corresponding service number on technical function....

  • Page 86

    07 tad mode (for external telephone answering device) for an external telephone answering device. Allows the okifax to share a telephone line with an answering device. If the remote rx function is set to a value other than off, that code can be used to force fax rx during tad mode. Tad mode is of tw...

  • Page 87

    14 high-speed modem rate specifies the modem's starting speed, 33.6k, 28.8k, 14.4k, 9.6k, or 4.8kbps. Note: the following protocol is added to okifax 5600-plus: itu-t standard v.34 for 33.6k or 28.8 kbps operation. 28.8 15 t1 (tx), timeout value registers the time duration (in seconds) for which the...

  • Page 88

    26 cml timing selects the time from end of ring to cml-on. Adjusting time is 100 ms to 1900 ms in 100 ms steps. 0 to 19 selectable. For example: (300 ms) 03 x 100 ms = 300 ms 03 27 strobe for led head setting of led print head strobe signals (00000-11111). Selection of strobe width in led head. "000...

  • Page 89

    31 symbol rate symbol rate (later) selects the v.34 modem symbol rate for okifax 5600-plus. 2400, 2800, 3200, 3429 selectable. 2800

  • Page 90

    Page: 40 service guide okifax 5250/5400 chapter 2 installation procedures tel/fax automatic switching (technical function 09) 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, i...

  • Page 91

    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 communications if the cng is detected during the period. *4: if the fax does not detect cng signal during working o...

  • Page 92

    Page: 41 service guide okifax 5250/5400 chapter 2 installation procedures tad mode (technical function 07) tad: telephone answering device tad can be connected to external telephone terminal to record your messages. Tad records your speech and switches an automatic voice message response to the call...

  • Page 93

    Note: if remote rx function is set to a value other than off, that code can be used to force fax rx during tad mode operation. Tad mode flowchart (type 2) if the fax does not detect cng signal during working of tad, the machine will go to standby mode. Note: if remote rx function is set to a value o...

  • Page 94

    Page: 42 service guide okifax 5250/5400 chapter 2 installation procedures 2.9.3 technical functions example note: the fonts displayed on the lcd operation panel may differ from the fonts written this manual. Setting the service bit 1) purpose to enable or disable the following functions: drum and to...

  • Page 95

    Technical functions 01-11 technical functions 12-16 technical functions 17-23 technical functions 24-27.

  • Page 96

    Technical functions 28-31.

  • Page 97

    Page: 43 service guide okifax 5250/5400 chapter 2 installation procedures technical functions 01 to 11.

  • Page 100

    Page: 44 service guide okifax 5250/5400 chapter 2 installation procedures technical functions 12 to 16.

  • Page 102

    Page: 45 service guide okifax 5250/5400 chapter 2 installation procedures technical functions 17 to 23.

  • Page 105

    Page: 46 service guide okifax 5250/5400 chapter 2 installation procedures technical functions 24 to 27.

  • Page 108

    Page: 47 service guide okifax 5250/5400 chapter 2 installation procedures technical functions 28 to 31.

  • Page 109

    Page: 48 service guide okifax 5250/5400 chapter 2 installation procedures 2.9.4 user's functions this section explains the items usually set up by general users. The following table shows the initial setting items and their purposes. Each function program setting (fp) can be accessed by entering the...

  • Page 110

    Page: 49 service guide okifax 5250/5400 chapter 2 installation procedures feature specifications note: s-on: effective if the service bit has been set on. Fp: function program setting tf: technical function setting no. Item specifications 01 auto dial 1) one-touch dial 2) two-digit dial 3) keypad di...

  • Page 111

    03 receive mode 1) auto receive mode 2) manual receive mode 3) telephone/fax automatic switchover selectable by key operation. Selectable by key operation. Selectable by key operation. The fax recognizes a fax call from a verbal call as follows: if the fax detects a call with a cng signal, it starts...

  • Page 112

    12 broadcast (memory transmission) maximum 84 (okifax 5250) and maximum 134 (okifax 5400) 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 5 keypad dial number l one delayed time of calling for this feature can be...

  • Page 113

    19 dual access the documents for transmission can be read into the memory even while the fax is engaged in another memory transmission, reception in the ecm or non-ecm mode. 1) operation of memory transmission while the fax is engaged in a communication (memory tx, memory rx or print mode rx). 2) co...

  • Page 114

    Page: 50 service guide okifax 5250/5400 chapter 2 installation procedures dual access combination table (1/2).

  • Page 115

    Page: 51 service guide okifax 5250/5400 chapter 2 installation procedures dual access combination table (2/2).

  • Page 116

    Page: 52 service guide okifax 5250/5400 chapter 2 installation procedures 2)-1 one-touch key operations.

  • Page 119

    Page: 53 service guide okifax 5250/5400 chapter 2 installation procedures one-touch key program settings (table 2.9.4) f+ot item specifications no. 01 delayed transmission (tx) this function enters a message transmission time(s) and location(s) for execution at a specified time. 02 broadcast/memory ...

  • Page 120

    06 report printing 1. Activity report 2. Broadcast message confirmation report (multi location) 3. Phone directory report 4. Configuration report technical function 01, the service bit, must be on. 5. Protocol dump report tf + 01 (sets to service bit) l log. Report tf + 01 (sets to on service bit) l...

  • Page 121

    09 user's programs 1. Function program 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 pap...

  • Page 122

    5. Personal box to allow the operator to open a personal box and to assign a 4-digit password code one of 16 mail-box memory segments in the message memory. 6. Forwarding number programming (for okifax 5400 only) the message is first received in the memory and when this reception is completed, the u...

  • Page 123

    Page: 54 service guide okifax 5250/5400 chapter 2 installation procedures 2)-2 function program user function program settings (table 2.9.4) part 1 of 4 p.F. No. Item specifications default 01 message confirmation report (single location) enables or disables the automatic message confirmation report...

  • Page 124

    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 and two-digits autodial. If unmatched, the communication will be automatically disconnected. Off/rx only/tx and rx selectable. * prevention of direct ma...

  • Page 125

    15 user language a choice of 2 languages for lcd and print message are available. Languages: english and french eng 16 incoming ring instead of ringer circuit, software can control built-in speaker to ring sound. To enable (on) or disable (off) or distinctive ring (drc) a software generated ring sou...

  • Page 126

    Page: 55 service guide okifax 5250/5400 chapter 2 installation procedures 2.9.5 user's functions example note: the font displayed on the lcd operation panel may differ from fonts written in this manual. 1) function program.

  • Page 127

    Page: 56 service guide okifax 5250/5400 chapter 2 installation procedures user's functions table.

  • Page 133

    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). 3) dial parameters (service bit "off") to get the "dial parameter" message on the display, perform the same operation as table 2.9.6 (dial paramet...

  • Page 135

    The following table can be set depending on the national codes even if the service bit is "off"..

  • Page 137

    Note: the blank in the table is not indicated on the lcd..

  • Page 138

    Page: 57 service guide okifax 5250/5400 chapter 2 installation procedures 2.9.6 clock adjustment.

  • Page 139

    Page: 58 service guide okifax 5250/5400 chapter 2 installation procedures 2.9.7 dual access operation.

  • Page 142

    Page: 59 service guide okifax 5250/5400 chapter 2 installation procedures 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 145

    Page: 60 service guide okifax 5250/5400 chapter 2 installation procedures 2.9.9 dial parameters settings.

  • Page 147

    (2) purpose (same diagram / table --- side view).

  • Page 150

    Page: 61 service guide okifax 5250/5400 chapter 2 installation procedures dial parameters settings table no. Item specifications default 01 redial tries switches on the re-dial times to meet the regulations of the installed country. 0 to 10 tries (in one-try steps) 1 to 5 tries for fre. 3 02 redial ...

  • Page 151

    Page: 62 service guide okifax 5250/5400 chapter 2 installation procedures 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 c...

  • Page 152

    Self-diagnosis print test (example).

  • Page 153

    *1 marked item is shown for condition of all ram except exceed ram. *2 marked item is shown to sram for exceed. *3 marked items are option..

  • Page 154

    Page: 63 service guide okifax 5250/5400 chapter 2 installation procedures 2.9.11 on-line tests 1. Transmission (1) load documents (2) make sure that the loaded documents are fed in automatically. L the std and normal lamps light. L the display shows select location. L (3) dial the telephone number o...

  • Page 156

    Typical reception flow.

  • Page 159

    Page: 64 service guide okifax 5250/5400 chapter 2 installation procedures 2.10 installation of optional units (1) items memory board l pc interface board l telephone handset l second paper cassette unit l (2) procedure turn the facsimile power switch off and remove the ac power cord. L note: unplug ...

  • Page 160

    Page: 65 service guide okifax 5250/5400 chapter 2 installation procedures 1. Installation of the memory board in okifax 5250/5400, mem, 1, 1.5, 2 o4 mb memory board can be mounted on the connector cn13 of e17 l board. Remove rear cover. Remove the rear cover by removing the two screws s1 and s2 . In...

  • Page 161

    Page: 66 service guide okifax 5250/5400 chapter 2 installation procedures 2. Installation of ctr (pc interface) board (of5400 only) remove rear cover. Remove the rear cover by removing the two screws s1 and s2 . Install ctr board. First, install ctr board on to the connector cn12, cn17 of the main c...

  • Page 162

    A) insert the tip of a cutter or nipper between the mold of rear cover and cut out it. Note: be careful not to rotate the cutter or nipper, since this can cause scratching on the rear cover. B) grasp the mold of rear cover, and rotate it up and down until you can able to easily remove it..

  • Page 163

    Page: 67 service guide okifax 5250/5400 chapter 2 installation procedures 3. Installation of an optional telephone set (1) after having taken out the telephone set, telephone handset and curled cord from the carton box, connect them as shown. (2) after installing the connection cable to the telephon...

  • Page 164

    (4) install the telephone assembly on the facsimile transceiver unit. In this case, cram the telephone assembly into the position shown by lifting the facsimile transceiver unit slightly. When the second paper tray is mounted on the facsimile transceiver unit, install the telephone assembly in the p...

  • Page 166

    Page: 68 service guide okifax 5250/5400 chapter 2 installation procedures 4. Second paper cassette unit this item explains how to install the second paper cassette unit option. Second paper cassette unit installation 1. Turn the facsimile power switch off and remove the ac power cord. Note: unplug t...

  • Page 167

    4. Peel off the tape attached on the second paper cassette unit. 5. Install the second paper cassette. Approximately 500 sheets of recording paper (20-ib bond) can be loaded. 6. Reconnect the power cord to the wall and the facsimile, and turn the facsimile power on..

  • Page 169

    Page: 69 service guide okifax 5250/5400 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 the outline of each process i...

  • Page 170

    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 171

    Page: 70 service guide okifax 5250/5400 chapter 3 brief technical description electric photographic process flow.

  • Page 172

    Page: 71 service guide okifax 5250/5400 chapter 3 brief technical description 3.2 actual electo-photographic process the electro-photographic process consists of six essential processes. * process: 1 : charging 2 : exposure 3 : developing 4 : transfer 5 : fusing 6 : cleaning.

  • Page 173

    Page: 72 service guide okifax 5250/5400 chapter 3 brief technical description 3.3 boards and units / block diagram the three boards, [memory board (option), telephone interface board (option), pc interface board (option)] and three units constitute the facsimile machine unit. Main control board e17:...

  • Page 174

    Page: 73 service guide okifax 5250/5400 chapter 3 brief technical description block diagram.

  • Page 175

    Page: 74 service guide okifax 5250/5400 chapter 3 brief technical description 3.4 overall dimension and mechanical structure.

  • Page 177

    Page: 75 service guide okifax 5250/5400 chapter 4 disassembly 4.1 general this chapter explains the procedures for replacement of assemblies and units in the field. 4.1.1 precautions for parts replacement.

  • Page 178

    Page: 76 service guide okifax 5250/5400 chapter 4 disassembly 4.1.1 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. ...

  • Page 179

    Page: 77 service guide okifax 5250/5400 chapter 4 disassembly 4.2 tools the tools (shown below) are required for the replacement of parts..

  • Page 180

    Page: 78 service guide okifax 5250/5400 chapter 4 disassembly 4.3 how to disassemble and reassemble this section explains how to disassemble and reassemble the fax. The disassembly procedure flowcharts provide an overview of the procedures. L the detailed disassembly procedure is explained from sub-...

  • Page 181

    Page: 79 service guide okifax 5250/5400 chapter 4 disassembly disassembly procedure flow 4.1 (1of 2).

  • Page 184

    Page: 80 service guide okifax 5250/5400 chapter 4 disassembly disassembly procedure flow (figure 4.2) 2 of 2.

  • Page 187

    Page: 81 service guide okifax 5250/5400 chapter 4 disassembly 4.3.1 led print head.

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    Page: 82 service guide okifax 5250/5400 chapter 4 disassembly 4.3.2 image drum, covers (rear, ncu, main) separation plate, boards (ncu, modem).

  • Page 195

    Page: 83 service guide okifax 5250/5400 chapter 4 disassembly 4.3.3 control panel assembly, paper guide (u) assembly.

  • Page 200

    Page: 84 service guide okifax 5250/5400 chapter 4 disassembly 4.3.4 sub-roller, adf roller assembly, pinch roller, contact image sensor, document detectors (pc1 and pc2).

  • Page 205

    Page: 85 service guide okifax 5250/5400 chapter 4 disassembly 4.3.5 motors (resist, drum), assemblies (release guide, manual guide) stacker cover, fusing unit.

  • Page 208

    Page: 86 service guide okifax 5250/5400 chapter 4 disassembly 4.3.6 lower base, motor assembly, back-up roller, transfer roller.

  • Page 211

    Page: 87 service guide okifax 5250/5400 chapter 4 disassembly 4.3.7 resist roller, hopping roller, sensor plate.

  • Page 214

    Page: 88 service guide okifax 5250/5400 chapter 4 disassembly 4.3.8 e17 board, power supply unit, contact assembly, transformer, sub-psu.

  • Page 217

    Page: 89 service guide okifax 5250/5400 chapter 5 adjustments 5.1 setting of led print head drive time adjustment point: technical function no. 27. L * to bring the lcd up to technical function, press select function key once, copy key twice and "2" key l (in case of no message in memory). Note: whe...

  • Page 218

    Page: 90 service guide okifax 5250/5400 chapter 5 adjustments 5.2 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 f...

  • Page 219

    Page: 91 service guide okifax 5250/5400 chapter 5 adjustments 5.3 measurement 1) turn ac power off. 2) carry out the disassembly procedure up to main cover and scanner unit removal. (refer to the mechanical disassembly and reassembly in chapter 4-2.) 3) connect extension cables to the m17 board. 4) ...

  • Page 220

    Page: 92 service guide okifax 5250/5400 chapter 5 adjustments measurement points on m17 board.

  • Page 221

    Page: 93 service guide okifax 5250/5400 chapter 6 cleaning and maintenance 6.1 consumables replacement the user (or service personnel) is required to replace the following items as consumable parts. User replaceable no. Part name expected use before replacement item no. In ref. Diagram 1 toner cartr...

  • Page 222

    Page: 94 service guide okifax 5250/5400 chapter 6 cleaning and maintenance service technician replaceable no. Part name expected use before replacement item no. In ref. Diagram 1 fuser unit 180,000 sheets (3) 2 separation rubber the separation rubber will not require replacement for at least 30,000 ...

  • Page 223

    Page: 95 service guide okifax 5250/5400 chapter 6 cleaning and maintenance replaceable items diagram.

  • Page 224

    Page: 96 service guide okifax 5250/5400 chapter 6 cleaning and maintenance others - reliability 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 occ...

  • Page 225

    Page: 97 service guide okifax 5250/5400 chapter 6 cleaning and maintenance 6.2 routine inspection basically, the routine inspection of the following items is performed about half-yearly (or every one year) after the machine is installed. The description of routine inspection is shown in the maintena...

  • Page 226

    Page: 98 service guide okifax 5250/5400 chapter 6 cleaning and maintenance routine inspection no. Part name maintenance procedure item no. In ref. Diagram 1 scan roller clean with wet cloth. (1) 2 feed rollers no. 1 and no. 2 clean with wet cloth. If the surface of these rollers becomes dirty and th...

  • Page 227

    Page: 99 service guide okifax 5250/5400 chapter 6 cleaning and maintenance preventative maintenance diagram.

  • Page 228

    Page: 100 service guide okifax 5250/5400 chapter 6 cleaning and maintenance 6.3 printer counter display/clear (user) 1. Purpose a user can clear the image drum counter and also check some of the other counters (such as the print counter, scan counter) by using the key. 2. Procedure the following exa...

  • Page 229

    Note: clear operation after having cleared the drum counter, warning message will disappear..

  • Page 230

    Page: 101 service guide okifax 5250/5400 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 note: drum (t) count is used to display the to...

  • Page 232

    Page: 102 service guide okifax 5250/5400 chapter 6 cleaning and maintenance 6.5 self-diagnosis test.

  • Page 234

    Page: 103 service guide okifax 5250/5400 chapter 6 cleaning and maintenance self-diagnosis test sample.

  • Page 237

    Page: 104 service guide okifax 5250/5400 chapter 6 cleaning and maintenance 6.6 sensor calibration test.

  • Page 238

    Note: after adjustment of levels, check the copy quality by copying test charts or documents..

  • Page 239

    Page: 105 service guide okifax 5250/5400 chapter 6 cleaning and maintenance 6.7 led test.

  • Page 241

    Page: 106 service guide okifax 5250/5400 chapter 6 cleaning and maintenance 6.8 tone send test.

  • Page 242

    Page: 107 service guide okifax 5250/5400 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.

  • Page 243

    Page: 108 service guide okifax 5250/5400 chapter 6 cleaning and maintenance high-speed modem send and receive test diagram.

  • Page 245

    Page: 109 service guide okifax 5250/5400 chapter 6 cleaning and maintenance 6.10 high-speed modem receive test 1. Purpose to check the telephone line quality in combination with a remote station programmed to the high-speed modem send test mode. 2. Procedure.

  • Page 246

    Page: 110 service guide okifax 5250/5400 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.

  • Page 248

    Page: 111 service guide okifax 5250/5400 chapter 6 cleaning and maintenance 6.12 tone (tel/fax).

  • Page 249

    Page: 112 service guide okifax 5250/5400 chapter 6 cleaning and maintenance 6.13 protocol data dump.

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    Page: 113 service guide okifax 5250/5400 chapter 6 cleaning and maintenance dump data description 1) data sample.

  • Page 253

    Page: 114 service guide okifax 5250/5400 chapter 6 cleaning and maintenance data analysis the printed out data permits to analyze g3 facsimile communication protocol signals between two facsimile machines. Below is the result of an analysis on the printed data (referring to the sample protocol data ...

  • Page 255

    Page: 115 service guide okifax 5250/5400 chapter 6 cleaning and maintenance fcf - facsimile control field conversion table this table 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 256

    Page: 116 service guide okifax 5250/5400 chapter 6 cleaning and maintenance 6.14 system reset.

  • Page 259

    Page: 117 service guide okifax 5250/5400 chapter 6 cleaning and maintenance 6.15 service code 1) the service code is printed on the activity report to document the result of each communication. 2) the activity report prints the service code "0000", when a communication terminates normally. 3) the ac...

  • Page 260

    Page: 118 service guide okifax 5250/5400 chapter 6 cleaning and maintenance service codes table code description 0000 successful end of communication 1080 stop key pressed while calling a remote fax 10a2 busy tone detected 14c0 dial tone not detected 14c1 line current not detected 14c2 calling-and-w...

  • Page 261

    9089 document length has exceeded its maximum limit 908e recording paper jam 9090 received dcn 90b1 picture memory hash error 90c1 document removed prior to transmission 90c6 normal or error-free lines not received for 13 seconds 90c7 error frame protocol received 90d4 hardware error in transmission...

  • Page 262

    Page: 119 service guide okifax 5250/5400 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 n...

  • Page 263

    Page: 120 service guide okifax 5250/5400 chapter 7 troubleshooting 7.1 overall troubleshooting flow chart.

  • Page 266

    Page: 121 service guide okifax 5250/5400 chapter 7 troubleshooting 7.2 no lcd operation.

  • Page 269

    Page: 122 service guide okifax 5250/5400 chapter 7 troubleshooting 7.3 alarm led on.

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    Page: 123 service guide okifax 5250/5400 chapter 7 troubleshooting 7.4 printing test failure.

  • Page 273

    Page: 124 service guide okifax 5250/5400 chapter 7 troubleshooting 7.5 no local copy.

  • Page 276

    Page: 125 service guide okifax 5250/5400 chapter 7 troubleshooting 7.6 auto dial failure.

  • Page 279

    Page: 126 service guide okifax 5250/5400 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 280

    Description: protective tone is 1700 hz/200 ms. This signal is added to training signal to protect the training signal against echo as follows..

  • Page 281

    Page: 127 service guide okifax 5250/5400 chapter 7 troubleshooting 7.8 auto reception failure.

  • Page 284

    Page: 128 service guide okifax 5250/5400 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 286

    Page: 129 service guide okifax 5250/5400 chapter 7 troubleshooting 7.10 sensor calibration test.

  • Page 287

    Page: 130 service guide okifax 5250/5400 chapter 7 troubleshooting 7.11 led test.

  • Page 290

    Page: 131 service guide okifax 5250/5400 chapter 7 troubleshooting 7.12 tone send test.

  • Page 293

    Page: 132 service guide okifax 5250/5400 chapter 7 troubleshooting 7.13 high-speed modem test.

  • Page 296

    Page: 133 service guide okifax 5250/5400 chapter 7 troubleshooting 7.14 mf send test.

  • Page 298

    Page: 134 service guide okifax 5250/5400 chapter 7 troubleshooting 7.15 tone (tel/fax) send test.

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    Page: 135 service guide okifax 5250/5400 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 303

    Page: 136 service guide okifax 5250/5400 chapter 7 troubleshooting 7.17 power supply unit.

  • Page 306

    Action items:.

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    Page: 137 service guide okifax 5250/5400 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 e17 board first and, then if not solved, follow this flow chart..

  • Page 313

    Page: 138 service guide okifax 5250/5400 chapter 7 troubleshooting 7.19 multiple document feeding.

  • Page 314

    Page: 139 service guide okifax 5250/5400 chapter 7 troubleshooting 7.20 document skew.

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    Page: 140 service guide okifax 5250/5400 chapter 7 troubleshooting 7.21 document jam.

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    Page: 141 service guide okifax 5250/5400 chapter 7 troubleshooting 7.22 printer unit 7.22.1 precautions 7.22.2 troubleshooting flow charts of printer unit 7.22.3 image problems table.

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    Page: 142 service guide okifax 5250/5400 chapter 7 troubleshooting 7.22.1 precautions 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...

  • Page 322

    Page: 143 service guide okifax 5250/5400 chapter 7 troubleshooting 7.22.2 troubleshooting flow charts of printer unit overall troubleshooting flowchart 1: top cover is open 2: replace image drum message 3: engine controller error 4: fan motor rotation error 5: fuser unit thermal error 6: paper jams ...

  • Page 323

    Page: 144 service guide okifax 5250/5400 chapter 7 troubleshooting overall troubleshooting flowchart lcd message / troubleshooting table category lcd message display situation trouble- shooting flow chart number cover open 14:14 [fax] cover open the cover (cover-top) is open. 1 image drum alarm 14:1...

  • Page 324

    Page: 145 service guide okifax 5250/5400 chapter 7 troubleshooting 1: top cover is open.

  • Page 325

    Page: 146 service guide okifax 5250/5400 chapter 7 troubleshooting 2: replace image drum message.

  • Page 326

    Page: 147 service guide okifax 5250/5400 chapter 7 troubleshooting 3: engine controller error.

  • Page 327

    Page: 148 service guide okifax 5250/5400 chapter 7 troubleshooting 4: fan motor rotation error.

  • Page 328

    Page: 149 service guide okifax 5250/5400 chapter 7 troubleshooting 5: fuser unit thermal error.

  • Page 329

    Page: 150 service guide okifax 5250/5400 chapter 7 troubleshooting 6: paper jams.

  • Page 331

    Page: 151 service guide okifax 5250/5400 chapter 7 troubleshooting 7: no paper tray or no paper.

  • Page 332

    Page: 152 service guide okifax 5250/5400 chapter 7 troubleshooting action items (printer unit-lcd message) table no. Action 1 check e17 board. 2 check power supply unit cover open switch cover open switch connection. Checke17 board. 3 return to section 7.1 4 replace the image drum. 5 check installat...

  • Page 333

    Page: 153 service guide okifax 5250/5400 chapter 7 troubleshooting 7.22.3 image problems table abnormal symptom reference figure troubleshooting flow chart no. Light or blurred images fig. A 8 smeared output background fig. B 9 blank output fig. C 10 vertical black stripes fig. D 11 evenly spaced, r...

  • Page 334

    Page: 154 service guide okifax 5250/5400 chapter 7 troubleshooting sample image problems.

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    Page: 155 service guide okifax 5250/5400 chapter 7 troubleshooting 8: light or blurred output.

  • Page 336

    Page: 156 service guide okifax 5250/5400 chapter 7 troubleshooting 9: smeared background on output.

  • Page 337

    Page: 157 service guide okifax 5250/5400 chapter 7 troubleshooting 10: blank output.

  • Page 338

    Page: 158 service guide okifax 5250/5400 chapter 7 troubleshooting 11: vertical black stripes on output.

  • Page 339

    Page: 159 service guide okifax 5250/5400 chapter 7 troubleshooting 12: evenly spaced marks on output.

  • Page 341

    Page: 160 service guide okifax 5250/5400 chapter 7 troubleshooting 13: missing print on output.

  • Page 342

    Page: 161 service guide okifax 5250/5400 chapter 7 troubleshooting 14: vertical white stripes on output.

  • Page 344

    Page: 162 service guide okifax 5250/5400 chapter 7 troubleshooting 15: poor fusing.

  • Page 345

    Page: 163 service guide okifax 5250/5400 chapter 8 dipswitch settings 8.1 general information the okifax 5250 and okifax 5400 do not have any dipswitches..

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    Page: 164 service guide okifax 5250/5400 chapter a board descriptions a1.1 unit configuration and block diagram the unit configuration of the okifax 5250 / 5400 is as follows: diagram (1) main control board.

  • Page 347

    (2) modem board (modem): okifax 5400 only (3) network control unit (unc) (4) pc interface board (ctr): okifax 5400 option only (5) memory board (mem): option (6) power supply unit (1vp: 120v, 2vp: 230v) (7) power supply unit (sub pow) (8) operation panel board (05wh) (9) optional board telephone int...

  • Page 348

    Page: 165 service guide okifax 5250/5400 chapter a board descriptions block diagram.

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    Page: 166 service guide okifax 5250/5400 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 exseed image processing...

  • Page 352

    Page: 167 service guide okifax 5250/5400 chapter a board descriptions a1.2 function of each unit the section describes the principal functions of the individual units of the fax machines electrical sections. The block diagram is shown in section a1.1 (1) main control board (e17) cpu l basic processo...

  • Page 353

    Detection of single-frequency tonal signals generation of dual time multiple-frequency signals for tone dialing (2) operation panel unit: 05w 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 : l...

  • Page 354

    Second paper cassette unit mos-cpu l motor control l.

  • Page 355

    Page: 168 service guide okifax 5250/5400 chapter a board descriptions a2.1 signal flow explanation (1) copy mode (2) g3 send mode (3) g3 receive mode (4) 300bps send mode (5) 300bps receive mode (6) report printing (7) memory transmission (8) memory reception.

  • Page 356

    Page: 169 service guide okifax 5250/5400 chapter a board descriptions (1) copy mode the copy picture signal diagram 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...

  • Page 357

    Page: 170 service guide okifax 5250/5400 chapter a board descriptions copy picture signal.

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    Page: 171 service guide okifax 5250/5400 chapter a board descriptions (2) g3 send mode the g3 send picture signal diagram 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 da...

  • Page 361

    Page: 172 service guide okifax 5250/5400 chapter a board descriptions g3 send pciture signal.

  • Page 364

    Page: 173 service guide okifax 5250/5400 chapter a board descriptions (3) g3 receive mode the g3 receive picture signal diagram 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...

  • Page 365

    Page: 174 service guide okifax 5250/5400 chapter a board descriptions g3 receive picture signal.

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    Page: 175 service guide okifax 5250/5400 chapter a board descriptions (4) 300 bps send mode the 300 bps second mode diagram shows the 300 bps 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 pr...

  • Page 369

    Page: 176 service guide okifax 5250/5400 chapter a board descriptions 300 bps send signal.

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    Page: 177 service guide okifax 5250/5400 chapter a board descriptions (5) 300 bps receive mode the 300 bps receive mode diagram shows the 300 bps receive protocol signal route. In g3 communication, this is the route of the procedural control signals (pre-message, post-message phases etc.) at 300bps....

  • Page 373

    Page: 178 service guide okifax 5250/5400 chapter a board descriptions 300 bps receive signal.

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    Page: 179 service guide okifax 5250/5400 chapter a board descriptions (6) report printing the report print signal diagram shows the report print signal route. This signal route describes the printing route of character data used to print activity report, message confirmation report, etc. The report ...

  • Page 377

    Page: 180 service guide okifax 5250/5400 chapter a board descriptions report printing signal.

  • Page 380

    Page: 181 service guide okifax 5250/5400 chapter a board descriptions (7) 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 t...

  • Page 381

    Page: 182 service guide okifax 5250/5400 chapter a board descriptions (8) memory reception this signal route describes the memory reception used in no-paper mode, no-toner reception, confidential mode, etc..

  • Page 382

    Page: 183 service guide okifax 5250/5400 chapter a board descriptions a3.1 main control board (e17) circuit diagrams a.3.1.1 e-17 cpu circuit diagram a3.1.2 e-17 - fls, mask, and real time clock circuit diagram a3.1.3 e-17 - audio monitor circuit diagram a3.1.4 e-17 - cis circuit diagram a3.1.5 e-17...

  • Page 383

    Page: 184 service guide okifax 5250/5400 chapter a board descriptions a3.1.1 e-17 - cpu circuit diagram 1. Block diagram the circuit diagram consists of a cpu, crystal oscillator circuit and reset signal generator. Refer to the related signals of cpu diagram for more information. 2. Function 1) cpu ...

  • Page 384

    Page: 185 service guide okifax 5250/5400 chapter a board descriptions related signals of cpu diagram.

  • Page 386

    Page: 186 service guide okifax 5250/5400 chapter a board descriptions a3.1.2 e17 - fls, mask and real time clock circuit diagram 1. Block diagram the circuit diagram consists of flash memory, mask rom, ic3 (real time clock ic) and back up battery circuit. Refer to the block diagram of fls, mask and ...

  • Page 387

    Page: 187 service guide okifax 5250/5400 chapter a board descriptions block diagram of fls, mask and real time clock.

  • Page 388

    Page: 188 service guide okifax 5250/5400 chapter a board descriptions a3.1.3 e17 - audio monitor circuit diagram 1. Block diagram the audio monitor circuit consists of ic11 (analog switch ic) and ic5 (amplifier) generates the following audio monitor. Line monitoring l buzzer signals l figure a3.1.3 ...

  • Page 389

    Page: 189 service guide okifax 5250/5400 chapter a board descriptions block diagram of audio monitor circuit.

  • Page 390

    Page: 190 service guide okifax 5250/5400 chapter a board descriptions a3.1.4 e17 - cis (contact image sensor) block diagram 1. Block diagram the circuit diagram shown on page 4/16 consists of the following function: ic6 (a/d converter) and amplifier l 30 v/24 v conversion circuit l connector cn10 th...

  • Page 391

    Page: 191 service guide okifax 5250/5400 chapter a board descriptions block diagram of cis (contact image sensor).

  • Page 392

    Page: 192 service guide okifax 5250/5400 chapter a board descriptions a3.1.5 iexseed300 diagram 1. Block diagram the circuit diagram shown consists of the iexseed300 (image processing lsi) of ic20 and sram. Refer to the related signals and block diagram of cis for more information. 2. Function iexse...

  • Page 393

    Page: 193 service guide okifax 5250/5400 chapter a board descriptions related signals of iexseed300

  • Page 394

    Page: 194 service guide okifax 5250/5400 chapter a board descriptions a3.1.6 e17 - modem diagram 1. Block diagram the circuit diagram shown on page 7/16 consists of connector cn15 that provides an interface between e17 board and the modem board s34, v34 or t34 (option). The circuit diagram shown on ...

  • Page 395

    Page: 195 service guide okifax 5250/5400 chapter a board descriptions related signals of modem.

  • Page 396

    Page: 196 service guide okifax 5250/5400 chapter a board descriptions a3.1.7 e17 - ncu, ope, and pc1/pc2 circuit diagram 1. Block diagram the circuit diagram shown consists of the following connectors: connector cn6 that provides an interface between m17 board and ncu board. L connector cn7 that pro...

  • Page 397

    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 398

    Page: 197 service guide okifax 5250/5400 chapter a board descriptions interface between e17 board and ncu board.

  • Page 399

    Page: 198 service guide okifax 5250/5400 chapter a board descriptions interface between e17 board and ope.

  • Page 400

    Page: 199 service guide okifax 5250/5400 chapter a board descriptions related signals of pc1/pc2.

  • Page 401

    Page: 200 service guide okifax 5250/5400 chapter a board descriptions a3.1.8 e17 - led circuit diagram 1. Block diagram the circuit diagram consists of connector cn2 that provides an interface between e17 board and led print head. For more information, refer to the related signals and block diagram ...

  • Page 402

    Page: 201 service guide okifax 5250/5400 chapter a board descriptions related signals and block diagaram of led head.

  • Page 403

    Page: 202 service guide okifax 5250/5400 chapter a board descriptions a3.1.9 e17 - send motor circuit diagram 1. Block diagram the circuit diagram consists of the following functions and connectors: ic21 (send motor drive) l connector cn5 that provides an interface between m17 board and the send mot...

  • Page 404

    Page: 203 service guide okifax 5250/5400 chapter a board descriptions related signals of send motor.

  • Page 405

    Page: 204 service guide okifax 5250/5400 chapter a board descriptions a3.1.10 e17 - drum/resist motor circuit diagram 1. Block diagram the circuit diagram consists of the following functions and connectors: ic9 (drum motor driver) l ic22 (resist motor driver) l connector cn3 that provides an interfa...

  • Page 406

    Page: 205 service guide okifax 5250/5400 chapter a board descriptions related signals of drum/resist motor.

  • Page 407

    Page: 206 service guide okifax 5250/5400 chapter a board descriptions a3.1.11 e17 - fan motor circuit diagram 1. Block diagram the circuit diagram consists of the following connectors: connector cn11 that provides an interface between e17 board and the fan motor. L connector cn14 that provides an in...

  • Page 408

    Page: 207 service guide okifax 5250/5400 chapter a board descriptions related signals of fan motor.

  • Page 409

    Page: 208 service guide okifax 5250/5400 chapter a board descriptions interface between e17 board and 2'nd tray.

  • Page 411

    Page: 209 service guide okifax 5250/5400 chapter a board descriptions a3.1.12 e17 - main power supply circuit diagram 1. Block diagram the circuit diagram consists of the following connector: connector cn1 provides an interface between e17 board and main power supply unit. L 2. Function 1) sensors a...

  • Page 412

    Page: 210 service guide okifax 5250/5400 chapter a board descriptions sensor functions sensor type sensor name function psin-n psin2-n inlet sensor inlet sensor 2 this photosensor is positioned before the resist roller to detect whether the paper has entered into the printer section. Wrsns-n write s...

  • Page 413

    Page: 211 service guide okifax 5250/5400 chapter a board descriptions sensors and switch control.

  • Page 414

    Page: 212 service guide okifax 5250/5400 chapter a board descriptions fuser unit temperature control 2) fuser unit temperature control the heater in the fuser unit is controlled by the thermister, ioga3 and cpu to keep the heater roller surface within a prescribed temperature range. The cpu supervis...

  • Page 416

    Page: 213 service guide okifax 5250/5400 chapter a board descriptions high/medium voltage control 3) high-voltage and medium-voltage control high voltages are activated by cpu and generated by the high-voltage circuit inside the power supply unit. The ch (charge) voltage of about -1.35 kv is used fo...

  • Page 417

    Page: 214 service guide okifax 5250/5400 chapter a board descriptions a3.1.13 e17 - optional memory and ctr circuit diagram 1. Block diagram the circuit diagram consists of the following connector: connector cn13 that provides an interface between m17 board and optional memory board. L connector cn1...

  • Page 418

    Page: 215 service guide okifax 5250/5400 chapter a board descriptions interface: e17 board to optional memory board diagram.

  • Page 419

    Page: 216 service guide okifax 5250/5400 chapter a board descriptions interface e17 board to cr board (pc interface unit) diagram.

  • Page 420

    Page: 217 service guide okifax 5250/5400 chapter a board descriptions a3.1.14 e17 dram diagram 1. Block diagram the circuit diagram consists of the following functions and connectors: ram3 to ram5 l for more information, refer to the block diagram of dram. 2. Function 1) psram 2 mbyte dram x 1 (ram3...

  • Page 421

    Page: 218 service guide okifax 5250/5400 chapter a board descriptions block diagram of dram.

  • Page 422

    Page: 219 service guide okifax 5250/5400 chapter a board descriptions a3.2 ope (05w) circuit diagram 1. Block diagram refer to the block diagram of ope (05w). The o5wh (operation unit) circuit consists of the following blocks: 1) ic1 (one chip mos-cpu) output ports l setting leds on and off: 8 ports...

  • Page 423

    Page: 220 service guide okifax 5250/5400 chapter a board descriptions block diagram of ope (operation unit) diagram.

  • Page 424

    Page: 221 service guide okifax 5250/5400 chapter a board descriptions a3.3 power supply unit a3.3.1 circuit diagram for 1vp/2vp (1 of 2) a3.3.2 circuit diagram for 1vp/2vp (2 of 2).

  • Page 425

    Page: 222 service guide okifax 5250/5400 chapter a board descriptions a3.3.1 circuit diagram for 1vp/2vp (1/2) important: oki data corporation recommends that maintenance of the power supply unit (1vp/2vp board) be performed by replacement of the whole power supply unit, not by replacement of compon...

  • Page 426

    Page: 223 service guide okifax 5250/5400 chapter a board descriptions 1. Low-voltage power supply circuit this circuit generates the following voltages. Output voltage output voltage +5 v logic circuit supply voltage (ic lsi), and high-voltage source voltage, etc. +8 v cis (contact image sensor) -8 ...

  • Page 427

    Page: 224 service guide okifax 5250/5400 chapter a board descriptions 2. Input ratings voltage: l ac 120 v +6%, -15% (ac 102 v to 127 v) ac 230 v +15%,-14% (ac 198 v to 264 v) frequency: l 50/hz/60hz +/-2%.

  • Page 428

    Page: 225 service guide okifax 5250/5400 chapter a board descriptions 3. Output ratings transformer type b pin no. Rated voltage rated current current range voltage range output ripple output noise cn3-b11-b13 a13 +5v 1.8 a 0.2 to 4.5 a 5 v +/-4% 100 mvp-p 250 mvp-p cn3-a15, b15 +30 v 1.20 a 0 to 1....

  • Page 429

    Page: 226 service guide okifax 5250/5400 chapter a board descriptions 4: block diagram refer to the block diagram of 1vp (120v)/2vp (230v). Note: the differences between 1vp (ac120v) and 2vp (ac230v) board are shown in the following table. Symbol 1vp board 2vp board remarks inlet ass'y 4ys4011-2894p...

  • Page 430

    Page: 227 service guide okifax 5250/5400 chapter a board descriptions block diagram of pwu (power supply unit).

  • Page 433

    Page: 228 service guide okifax 5250/5400 chapter a board descriptions 5. General functional description 5-1 general 5-2 circuit description 5-3 low-voltage section 5-4 protection circuits 5-5 cover open circuit 5-6 high voltage section 5-7 photosensors.

  • Page 434

    Page: 229 service guide okifax 5250/5400 chapter a board descriptions 5-1 general the power supply unit consists mainly of ac transformer and a power pcb (1vp board for ac120v/2vp board for ac230v). A block diagram of the power supply unit is shown in figure a3.6.1 the power pcb is composed of five ...

  • Page 435

    Page: 230 service guide okifax 5250/5400 chapter a board descriptions 5-2 circuit description 5-2-1 ac input section 5-2-2 heater control circuit.

  • Page 436

    Page: 231 service guide okifax 5250/5400 chapter a board descriptions 5-2-1 ac input section 1) ac commercial power is supplied to line filter circuit through the ac inlet, power switch (sw1) and the fuse (f1). Fuse f1 is used for protecting the heater circuit. 2) the filter circuit consists of l101...

  • Page 437

    Page: 232 service guide okifax 5250/5400 chapter a board descriptions 5-2-2 heater control circuit 1) the ac power divided from the ac input section passes through l2 for noise elimination and is fed to the heater via d1 (operating as a switch) from the power pcb. 2) the on/off operation of d1 is co...

  • Page 438

    Page: 233 service guide okifax 5250/5400 chapter a board descriptions 5-3 low-voltage section 5-3-1 +30 v circuit 5-3-2 +/- 8 v circuit 5-3-3 +5 v circuit.

  • Page 439

    Page: 234 service guide okifax 5250/5400 chapter a board descriptions 5-3-1 +30 v circuit 1) the +30 v circuit provides +30 v output by rectifying the corresponding output of transformer t1 by a rectifier diode ds1 and smoothing the rectified signal by capacitor c7. 2) resistor r53 is used to discha...

  • Page 440

    Page: 235 service guide okifax 5250/5400 chapter a board descriptions 5-3-2 +/- 8 v circuit 1) the +/- 8 v circuit provides +8 v and -8 v outputs by rectifying the corresponding output of transformer t1 by rectifier diodes d10 and d11 and smoothing the rectified signals by capacitors c13 and c14. 2)...

  • Page 441

    Page: 236 service guide okifax 5250/5400 chapter a board descriptions 5-3-3 +5 v circuit 1) +5 v circuit provides +5 v output by lowering +30 v output by means of dc-dc converter circuit. 2) ic1 is a control ic of frequency fixed type (operating at about 30 khz in present power supply unit) 3) q1 is...

  • Page 442

    Page: 237 service guide okifax 5250/5400 chapter a board descriptions 5-4 protection circuit 1) the protection circuit includes fuse f3 for +30 v and +5 v overcurrent protection circuit. 2) if an overvoltage is applied to the +5 v circuit, d8, r9 and d6 operate to short-circuit the +30 v circuit for...

  • Page 443

    Page: 238 service guide okifax 5250/5400 chapter a board descriptions 5-5 cover open circuit 1) the cover open circuit consists of sw2. When the stacker cover is opened, the cover open microswitch (sw2) on the 1vp/2vp board is turned off to cut the supply of h5v to the high-voltage power supply circ...

  • Page 444

    Page: 239 service guide okifax 5250/5400 chapter a board descriptions a3.3.2 1vp (for 120v)/2vp (for 230v) circuit diagram (2/2) this circuit consists of photo-sensors and high voltage generation unit. Note: if the high-voltage unit inside the 1vp/2vp circuit board is replaced, the output voltage an...

  • Page 445

    Page: 240 service guide okifax 5250/5400 chapter a board descriptions 5-6 high-voltage section 5-6-1 functional overview 5-6-2 sb2, db1, db2 and cb 5-6-3 tr1 and tr2 5-6-4 ch.

  • Page 446

    Page: 241 service guide okifax 5250/5400 chapter a board descriptions 5-6-1 functional overview the high-voltage outputs consist of tr1 (3.5 kv), tr2 (-0.75 kv), db1 (+300 v), db2 (-300 v), sb2 (-450v), cb (+400 v) and ch (-1.35 kv) and are obtained as follows. The control signal obtained from ioga ...

  • Page 447

    Page: 242 service guide okifax 5250/5400 chapter a board descriptions 5-6-2 sb2, db1, db2 and cb 1) these four high-voltage outputs are obtained from the flyback voltage of q10. 2) the positive and negative voltages of db1 and db2 are obtained by switching the charging direction under the triac and ...

  • Page 448

    Page: 243 service guide okifax 5250/5400 chapter a board descriptions 5-6-3 tr1 and tr2 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...

  • Page 449

    Page: 244 service guide okifax 5250/5400 chapter a board descriptions 5-6-4 ch 1) the ch output voltage is stabilized by keeping the primary flyback voltage obtained by switching operation of q16 at a constant voltage by d76 and d82..

  • Page 450

    Page: 245 service guide okifax 5250/5400 chapter a board descriptions 5-7 photosensors the photosensors mounted on this circuit board/sensor board supervise the paper running state during printing. These six photosensors are used in this printer as listed below. All of their outputs enter ioga for r...

  • Page 451

    Page: 246 service guide okifax 5250/5400 chapter a board descriptions a3.4 unc, wn5, fn5 and dn5 circuit diagram unc circuit diagram wn5 circuit diagram fn5 circuit diagram dn5 circuit diagram.

  • Page 452

    Page: 247 service guide okifax 5250/5400 chapter a board descriptions unc (ncu) circuit diagram 1. Block diagram refer to the block diagram of unc (ncu) circuit diagram. L l 2. General functions of this circuit are as follows: 1) generates and detects signals to be exchanged with a telephone exchang...

  • Page 453

    This circuit selectively switches the line between the telephone or facsimile. 8 sr (rl2) this circuit connects the line with the telephone. During facsimile transmission, it disconnects the telephone. 11 pp (rl6) if this circuits detects mf or cng tones without seizuring a line, it sets a proper re...

  • Page 454

    Page: 248 service guide okifax 5250/5400 chapter a board descriptions block diagram of unc.

  • Page 457

    Page: 249 service guide okifax 5250/5400 chapter a board descriptions wn5 circuit diagram 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 t...

  • Page 458

    This circuit processes send/receive signals required for facsimile transmission, dial tone receive signals required for automatic dialing, and mf tone send and remote receive signals. It separates between the line and equipment in terms of dc and also keeps a balance between the line and the ground....

  • Page 459

    Page: 250 service guide okifax 5250/5400 chapter a board descriptions block diagram of wn5.

  • Page 461

    Page: 251 service guide okifax 5250/5400 chapter a board descriptions fn5 circuit diagram 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 t...

  • Page 462

    These circuits detect the off-hook state of the telephone connected to the tel1, tel2, through line terminals. Ic2 uses a high detection sensitivity than of rl7. In tel/fax mode, the higher sensitive ic2 is used to detect the off-hook state of the telephone while the main equipment is hunting a line...

  • Page 463

    Page: 252 service guide okifax 5250/5400 chapter a board descriptions block diagram of fn5.

  • Page 466

    Page: 253 service guide okifax 5250/5400 chapter a board descriptions dn5 circuit diagram 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 t...

  • Page 467

    Automatic dialing, and mf tone send and remote receive signals. It separates between the line and equipment in terms of dc and also keeps a balance between the line and the ground. 16 off-hook detectors (ic2, rl7) these circuits detect the off-hook state of the telephone connected to the tel1, tel2,...

  • Page 468

    Page: 254 service guide okifax 5250/5400 chapter a board descriptions block diagram of dn5.

  • Page 471

    Page: 255 service guide okifax 5250/5400 chapter a board descriptions a3.5 telu, tel-w2, tel-w1, and tel-w2f circuit diagram (option) telu tel-w2 tel-w1 tel-w2f.

  • Page 472

    Page: 256 service guide okifax 5250/5400 chapter a board descriptions telu circuit diagram (option) the telu board is the control board of the telephone set when the optional telephone assembly is installed on the facsimile transceiver. 1. Block diagram refer to the block diagram of the telu circuit...

  • Page 473

    Amplification factor and output to the telephone line via unc, hook switch and db2 (rectifier). Receive signal route l receive signal from the telephone line enters speech ic via unc, hook switch and db2 and is output to pin 2 & 3 of the speaker of the handset..

  • Page 474

    Page: 257 service guide okifax 5250/5400 chapter a board descriptions block diagram of tel-u (option).

  • Page 477

    Page: 258 service guide okifax 5250/5400 chapter a board descriptions tel-w2 circuit diagram refer to block diagram tel-w2 1) speech ic general functions of the speech ic are as follows: basic speech functions included. L separate receive pre-amplifier with signal output terminal l separate receive ...

  • Page 478

    Sw2-3 is set to on, the impedance is set to 600 w's series. 8) agc (automatic gain control) agc is function for adjusting the sending and receiving levels automatically in accordance with the line current values, so that the optimal communication level is automatically set. The circuit section to de...

  • Page 479

    Page: 259 service guide okifax 5250/5400 chapter a board descriptions block diagram of tel-w2.

  • Page 482

    Page: 260 service guide okifax 5250/5400 chapter a board descriptions tel-w1 circuit diagram refer to block diagram of tel-w1. 1) speech ic general functions of the speech ic are as follows: basic speech functions included. L separate receive pre-amplifier with signal output terminal l separate rece...

  • Page 483

    6) side-tone adjustment the side-tone adjustment is performed by the c-r networks corresponding to the individual countries. For adjusting the side tone, select the corresponding c-r network by the designated dip switch and adjust the stmr value to the specified value by the values of capacitors and...

  • Page 484

    Page: 261 service guide okifax 5250/5400 chapter a board descriptions block diagram of tel-w1.

  • Page 487

    Page: 262 service guide okifax 5250/5400 chapter a board descriptions tel-w2f circuit diagram refer to block diagram of tel-w2f. 1) speech ic general functions of the speech ic are as follows: basic speech functions included. L separate receive pre-amplifier with signal output terminal. L separate r...

  • Page 488

    (2) return loss (3) sending level (4) receiving level (5) side tone level.

  • Page 489

    Page: 263 service guide okifax 5250/5400 chapter a board descriptions block diagram of tel-w2f.

  • Page 492

    Page: 264 service guide okifax 5250/5400 chapter a board descriptions a3.7 memo (memory) circuit diagram (option) by mounting this optional memory board (mem/mem-2), it can be used for the expansion memory. 1. Block diagram refer to the related signal or memory board diagram. Memory board circuit co...

  • Page 493

    Page: 265 service guide okifax 5250/5400 chapter a board descriptions related signals of memory board.

  • Page 494

    Page: 266 service guide okifax 5250/5400 chapter a board descriptions a3.8 ctr circuit diagram (pc interface unit: of5400 option) ctr board is used as an interface board of pc and fax when pc is connected to facsimile machine. 1. Block diagram ctr board circuit is formed by receiver, driver, and 128...

  • Page 495

    (packetize/unpacketize, flow control, transfers command/data between each sub-system) c) physical layer: has a bi-directional interface control circuit which conforms to ieee1284. Standard mode: compatible, nibble oki special mode: mce (mode change express) following devices are as sub-system: 1) pr...

  • Page 496

    Page: 267 service guide okifax 5250/5400 chapter a board descriptions related signals of p050 (pc interface unit) diagram.

  • Page 497

    Page: 268 service guide okifax 5250/5400 chapter a board descriptions a3.9 tqsb (second tray) circuit diagram: option 1. Block diagram this board is installed as the optional board for the unit. Refer to the block diagram of the second tray (option). 2. Function second tray consists of the following...

  • Page 498

    Page: 269 service guide okifax 5250/5400 chapter a board descriptions block diagram of 2nd tray.

  • Page 501

    Page: 270 service guide okifax 5250/5400 chapter b print operation description overview this appendix describes the print operation processes and assemblies of the unit. B.1 mechanical components b.2 description of print operations b.3 errors b.4 other special cases.

  • Page 502

    Page: 271 service guide okifax 5250/5400 chapter b print operation description b.1 mechanical components 1) image drum cartridge 2) resist motor 3) drum motor 4) led head 5) fuser layout of print station components.

  • Page 503

    Page: 272 service guide okifax 5250/5400 chapter b print operation description 1) image drum cartridge the image drum cartridge i/d or ep (electro-photographic) consists of an image drum, a charger, and a developer. The cartridge forms a toner image on the drum, using an electrostatic latent image f...

  • Page 504

    Page: 273 service guide okifax 5250/5400 chapter b print operation description 2) resist motor this resist motor is a pulse motor of 48 steps/rotation that is two-phase excited by the signal from the m17 board. It drives the hopping roller and the resist roller via two one-way clutches according to ...

  • Page 505

    Page: 274 service guide okifax 5250/5400 chapter b print operation description 3) drum motor this drum motor is a pulse motor of 48 steps/rotation that is two-phase excited by the signal from the m17 board and is the main motor of this mechanism..

  • Page 506

    Page: 275 service guide okifax 5250/5400 chapter b print operation description 4) led head image data for each dot on a line from the m17 board is received by the shift registers and latch registers. The letter size led head are driven to radiate the image data on to the ep (image) drum..

  • Page 507

    Page: 276 service guide okifax 5250/5400 chapter b print operation description 5) fuser the fuser consists of a heater, a heat roller, a thermister and a thermostat. An ac voltage from the power supply board (1vp/2vp) is applied to the heater under the control of the heat-n signal from the m17 board...

  • Page 508

    Page: 277 service guide okifax 5250/5400 chapter b print operation description layout of print station components.

  • Page 511

    Page: 278 service guide okifax 5250/5400 chapter b print operation description b.2 description of print operations b2.1 process operations.

  • Page 512

    Page: 279 service guide okifax 5250/5400 chapter b print operation description b2.1 process operations 1) hopping and feeding 2) charging 3) exposure 4) developing 5) transfer 6) fusing 7) cleaning 8) cleaning of rollers.

  • Page 513

    Page: 280 service guide okifax 5250/5400 chapter b print operation description 1) hopping and feeding hopping and feeding are affected by a single resist motor in the mechanism shown below. Turning the resist motor in the "a" direction drives the hopping roller. Turning the resist motor in the "b" d...

  • Page 514

    Cw = clockwise (b) feeding 1 after end of hopping, turning the resist motor in the "b" direction (in the counter-clockwise [ccw] direction) drives the resist roller to advance the paper. (in this case, the hopping gear also turns, but the hopping roller is prevented from turning by the one-way clutc...

  • Page 515

    Ccw = counterclockwise.

  • Page 516

    Page: 281 service guide okifax 5250/5400 chapter b print operation description 2) charging charging is affected by applying a dc voltage to the charge roller that is in contact with the image drum surface. The charge roller is composed of two layers consisting of a conductive layer and a surface pro...

  • Page 518

    Page: 282 service guide okifax 5250/5400 chapter b print operation description 3) exposure light emitted from the led head irradiates the image drum surface with negative charges. The surface potential of the irradiated part of the image drum drops, thereby forming an electrostatic latent image asso...

  • Page 519

    When light from the led head irradiates the image drum surface, the light energy generates positive and negative carriers in the cgl. The positive carriers are moved to the ctl by an electrical field acting on the image drum. Likewise, the negative carriers flow into the aluminum layer (ground). The...

  • Page 520

    Page: 283 service guide okifax 5250/5400 chapter b print operation description 4) developing toner is attracted to the electrostatic latent image on the image drum surface to convert it into a visible toner image. Developing takes place at the contact between the image drum and the developing roller...

  • Page 521

    Denote the direction of the electric field). Note: the toner supply roller and the developing roller are supplied with bias voltages required during the developing process as shown below. -450 vdc is supplied to the toner supply roller, -300 vdc to the developing roller..

  • Page 522

    Page: 284 service guide okifax 5250/5400 chapter b print operation description 5) transfer the transfer roller is composed of conductive sponge material and is designed to make the image drum surface and the paper closely into contact. Paper is placed over the image drum surface, and a positive char...

  • Page 523

    Page: 285 service guide okifax 5250/5400 chapter b print operation description 6) fusing after the end of the transfer operation, the unfused toner image is fused on the paper under heat and pressure as it passes between the heater roller and the back-up roller. The heater roller with a teflon coati...

  • Page 524

    Page: 286 service guide okifax 5250/5400 chapter b print operation description 7) cleaning after the end of the transfer, residual toner on the image drum is attracted to the cleaning roller temporarily by static electricity to clean the image drum surface..

  • Page 525

    Page: 287 service guide okifax 5250/5400 chapter b print operation description 8) cleaning of rollers the charge roller, transfer roller and cleaning roller are cleaned in the following cases: in warning up at power-on time l in warning up after the cover is opened and closed l when the number of ac...

  • Page 526

    Page: 288 service guide okifax 5250/5400 chapter b print operation description b.3 errors b.3.1 errors list b.3.2 major trouble errors b.3.3 recoverable errors.

  • Page 527

    Page: 289 service guide okifax 5250/5400 chapter b print operation description b.3.1 errors list the errors are listed below. 1) major trouble errors fuser error (printer alarm 4) l fan error (printer alarm 3) l paper supply error l paper transport system error l paper exit jam l paper size error l ...

  • Page 528

    Page: 290 service guide okifax 5250/5400 chapter b print operation description b.3.2 major trouble errors b.3.2.1 fuser error b.3.2.2 fan error b.3.2.3 paper feed monitoring b.3.2.4 2'nd tray communication error b.3.2.5 cover open.

  • Page 529

    Page: 291 service guide okifax 5250/5400 chapter b print operation description b.3.2.1 fuser error the fuser error indicates an error in thermister on heater. In case the fuser error occurs at the time of printing, the heater is turned off soon but the printing continues of that page. However, if th...

  • Page 530

    Page: 292 service guide okifax 5250/5400 chapter b print operation description b.3.2.2 fan error the fan error is generated when the fansns signal lead goes "1" while the fan is running at full speed. Operation of the fansns signal when the fan is turned on is described below. Since the fan alarm is...

  • Page 531

    Page: 293 service guide okifax 5250/5400 chapter b print operation description b.3.2.3 paper feed monitoring status description of supervising sensor distance paper supply error indicates monitoring error in hopping. Hopping is retried 3 times. 118 mm (4.64") or less path length +36 (hopping) x 3 tr...

  • Page 532

    Page: 294 service guide okifax 5250/5400 chapter b print operation description b.3.2.4 2'nd tray communication error (printer alarm 2) this error is generated if on sending a command to the 2'nd tray is returned no-status (40s) or an undefined status. However, in case there is no status when reset, ...

  • Page 533

    Page: 295 service guide okifax 5250/5400 chapter b print operation description b.3.2.5 cover open cover open sensor "0" indicates an open cover. When the cover is closed the cu (control unit) section sends the reset signal and processes in the same way as if the power has been turned on..

  • Page 534

    Page: 296 service guide okifax 5250/5400 chapter b print operation description b3.3.3 recoverable errors the three recoverable errors are listed in the table below. Status description of supervising sensor 2'nd tray route open paper supply route from the option 2'nd tray to the main body is open, re...

  • Page 535

    Page: 297 service guide okifax 5250/5400 chapter b print operation description b3.3.3.1 toner low detection composition operation operation during toner full state operation during toner low state low toner alarm.

  • Page 536

    Page: 298 service guide okifax 5250/5400 chapter b print operation description composition the device consists of the stirring gear which rotates at a constant rate, the stirring bar and the magnet on the stirring bar. The stirring bar rotates through the link on the protrusion in the stirring gear....

  • Page 537

    Page: 299 service guide okifax 5250/5400 chapter b print operation description operation toner low is detected by monitoring the time interval between the encounter of the magnet set on the sensor lever and the magnet on the stirring bar..

  • Page 538

    Page: 300 service guide okifax 5250/5400 chapter b print operation description operation during toner full state the stirring bar rotates due to interlocking l with the stirring gear. When the magnet on the stirring bar reaches l the maximum height, since the other end of the bar is being dipped in ...

  • Page 539

    Page: 301 service guide okifax 5250/5400 chapter b print operation description operation during toner low state operation during toner low state when the stirring bar reaches the maximum l height, the small amount of toner at the other end of the bar offers little resistance. The bar falls to the mi...

  • Page 540

    Page: 302 service guide okifax 5250/5400 chapter b print operation description low toner alarm a check for low toner is carried out at all times when the drum is rotating (rotation in opposite direction is excluded). The toner sensor is not monitored while the drum motor is in halt. L toner low is e...

  • Page 541

    Page: 303 service guide okifax 5250/5400 chapter b print operation description b.4 other special cases b.4.1 manual paper feed b.4.2 cleaning.

  • Page 542

    Page: 304 service guide okifax 5250/5400 chapter b print operation description b.4.1 manual paper feed turning on of the inlet sensors without the hopping operation indicates manual paper feeding for okifax 5250 & okifax 5400 (excluding when power is on)..

  • Page 543

    Page: 305 service guide okifax 5250/5400 chapter b print operation description b.4.2 cleaning the image drum needs regular cleaning. The two kinds of cleaning are listed in the table below. Cleaning type function remarks cleaning this cleaning removes the toner whose electric potential is 1) reverse...

  • Page 544

    Page: 306 service guide okifax 5250/5400 chapter c circuit diagrams c.1 general information the okifax 5250 and okifax 5400 circuit diagrams contain component level repair information and are okidata proprietary..

  • Page 545

    Page: 307 service guide okifax 5250/5400 chapter d illustrated parts list assembly.

  • Page 548

    Page: 308 service guide okifax 5250/5400 chapter d illustrated parts list 1: cabinet assembly.

  • Page 550

    Rev. No. Oki parts number description q'ty remarks 1 1pa4120-1079g1 hopper: document assy. 1 50607301 rspl 2 2pp4120-1084p1 tray: sub hopper 1 50220901 rspl 3 2pp4120-1091p1 cover: ncu 1 53075901 rspl 4 1pp4120-1089p1 cover: main 1 53075801 rspl 5 2pa4083-6130g1 guide: manual feed assy (gray) 1 5101...

  • Page 551

    Page: 309 service guide okifax 5250/5400 chapter d illustrated parts list 2: control panel assembly.

  • Page 553

    Rev. No. Oki parts number description q'ty remarks 1 40105301 unit: op panel (of5250 1 55083202 rspl 1b 40079101 unit: op panel (of5400) 1 40079109 rspl 2 film: one-touch cover 1 52203301 rspl 3 sheet: one-touch (l) 1 52081310 rspl 4 sheet 1 5 label: ten key 1 6 40047001 sheet: one touch (of5400) 1 ...

  • Page 554

    Page: 310 service guide okifax 5250/5400 chapter d illustrated parts list 3a: printer assembly (1 of 2) rev. No. Oki parts number description q'ty remarks 1 2pa4120-1214g1 cover: stacker assy 1 53077801 rspl 2 4pb3517-1567p1 wire: guide 1 51013801 rspl 3 4yb4120-1117p1 motor: (main) 1 56512701 rspl ...

  • Page 555

    21 4pp4083-6052p1 bushing: pressure roller 2 51607601 rspl 22 4pp4083-6065p1 spring: bias 2 50925301 rspl 23 1pp4083-6035g001 base: lower sub assy 1 50223201 rspl 24 3pp4083-6058p1 arm: cover open 1 53068901 rspl 25 3pp4083-6053p1 lever: reset (l) 1 50805801 rspl 26 4pp4083-6057p1 spring: stacker co...

  • Page 556

    Page: 311 service guide okifax 5250/5400 chapter d illustrated parts list 3b: printer assembly (2 of 2) rev. No. Oki parts number description q'ty remarks 31 2pa4120-1085g1 guide: release assy. 1 51019201 rspl.

  • Page 557

    32 4pp4120-1087p1 spring: release 1 50930001 rspl 33 4ya4116-1228g1 led head (1228g10 1 56112101 rspl 34 224a1286p0140 connector: led cable 1 56730201 rspl 35 4yx4120-1124g1 cable: led head assy 1 56632401 rspl 36 n/a screw n/a 37 n/a screw n/a 38 n/a screw n/a 39 n/a screw n/a 40 n/a screw n/a 41 n...

  • Page 558

    Page: 312 service guide okifax 5250/5400 chapter d illustrated parts list 4a: base assembly (1 of 2).

  • Page 560

    Rev. No. Oki-j and or oki parts number description q'ty oki p/n & remarks 1a 4yb4049-7082p1 transformer: 120 v 1 56414201 rspl 1b 4yb4049-7083p1 transformer: 230 v 1 56414001 rspl 2 3pa4083-6090g1 assy: contact 1 56730001 rspl 3a 40319201 pwr unit-acdc drop (120v) 1 40319201 rspl 3b 40035902 pwr uni...

  • Page 561

    Page: 313 service guide okifax 5250/5400 chapter d illustrated parts list 4b: base assembly (2 of 2).

  • Page 563

    Rev. No. Oki parts number description q'ty remarks 31 40123401 plate: assembly (pc interface) (of5600) 1 40123401 rspl 32 4pp4120-1187p1 plate: earth (pcfx) (of5600) 1 51024001 rspl 33 4pp4083-7665p001 fg plate d 1 51023601 rspl 34 4yc4061-5115p001 tape: teflon 2 n/a 35 36 40275501 plate-guard 1 402...

  • Page 564

    Page: 314 service guide okifax 5250/5400 chapter d illustrated parts list 5: scan unit.

  • Page 565

    Rev. No. Oki-j part number description q'ty oki data p/n 1 1pp4120-1015p001 frame: scanner 1 53350701 rspl 2 2pp4120-1034p1 base: scanner (l) 1 50221101 rspl 3 4pp4120-1023p1 plate: adf ground 1 51019901 rspl 4 4pp4120-1017p1 lever: pc2 1 50808801 rspl 5 4pp4120-1016p1 lever: pc1 1 50808701 rspl 6 3...

  • Page 566

    Page: 315 service guide okifax 5250/5400 chapter d illustrated parts list 6: paper guide u assembly.

  • Page 568

    Rev. No. Oki-j part number description q'ty oki data p/n & remarks 1 3pa4120-1045g1 roller: feed (1) assy. 1 50410301 rspl 2 4pp4120-1226p001 plate: earth (sr) 1 51023801 rspl 3 4pp4120-1227p001 plate: earth (sl) 1 51023901 rspl 4 4ys4011-1714p2 earth cord (ground wire) 1 56634702 5 1pp4120-1040p001...

  • Page 569

    Page: 316 service guide okifax 5250/5400 chapter d illustrated parts list 7: cables.

  • Page 570

    Rev no. Oki-j part # description q'ty oki part # & remarks.

  • Page 571

    1 40040002 cord: op panel connection 1 40041002 rspl 2 4yb4120-1026p1 speaker 1 57001701 rspl 3 3ys4111-3527p2 cable: 2nd tray connector 1 56632801 rspl 4 4ys4111-3441p1 cord: connector (c1s) 1 56634501 rspl 5 4ys4111-3442p1 cord: connector (pc1/2) 1 56634601 rspl 6 105a1070c0001 core: ferrite d 2 5...

  • Page 572

    Page: 317 service guide okifax 5250/5400 chapter d illustrated parts list 8: option telephone.

  • Page 573

    Rev. No. Oki parts number description q'ty remarks 1 1pp4120-1095p011 cradle 1 n/a 2 4ya4129-1006g001 board-hook 1 n/a 6 4ya4129-1005g001 board-telu 1 n/a 7 1pp4120-1096p001 base-cradle 1 n/a.

  • Page 574

    8 3pp4120-1097p001 cover-terminal 1 n/a 9 3pa4120-1140g001 attachment-assembly 1 n/a 10 4yb3512-2029g004 handset 1 n/a 12 4ys4111-5552p001 connection-cord 1 n/a 14 4ys4111-5551p001 moduler-jack cord 1 n/a 17 4ys3522-1252g002 cord-handset 1 56628101 rspl 18 n/a tapping-screw 1 n/a 19 n/a screw 1 n/a ...

  • Page 575

    Page: 318 service guide okifax 5250/5400 chapter d illustrated parts list 9a: second paper feed (option) rev. No. Oki parts number description q'ty remarks 1 1pp4122-1401p001 plate: upper 1 51023301 2 3pa4122-1370g001 guide: sheet assembly 1 50222001 3 1pa4122-1369g001 cover: front assembly 1 530753...

  • Page 576

    15 3pb4122-1399p001 motor: pulse 1 56512201 16 4pp4122-1384g001 bracket 1 51712001 17 4pp4122-1383p001 gear (z24) 2 51238901 18 4pp4122-1226p001 gear (z87/z60) 1 51239101 19 4pp4122-1389p001 plate: bottom 1 51023201 20 4pp4122-1365g001 guide: 2nd cassette (l) assembly 1 50222301 21 3pa4122-1367g001 ...

  • Page 577

    Page: 319 service guide okifax 5250/5400 chapter d illustrated parts list 9b: second paper feed (option) rev. No. Oki parts number description q'ty remarks 1 1pp4122-1401p001 plate: upper 1 51023301 2 3pa4122-1370g001 guide: sheet assembly 1 50222001 3 1pa4122-1369g001 cover: front assembly 1 530753...

  • Page 578

    14 3ys4111-3528p001 cable & connector 1 56633901 15 3pb4122-1399p001 motor: pulse 1 56512201 16 4pp4122-1384g001 bracket 1 51712001 17 4pp4122-1383p001 gear (z24) 2 51238901 18 4pp4122-1226p001 gear (z87/z60) 1 51239101 19 4pp4122-1389p001 plate: bottom 1 51023201 20 4pp4122-1365g001 guide: 2nd cass...

  • Page 579

    Page: 320 service guide okifax 5250/5400 chapter d illustrated parts list 10: miscellaneous whole unit consumables options.

  • Page 580

    Page: 321 service guide okifax 5250/5400 chapter d illustrated parts list whole unit model description part # of5250 120v english 62210701 of5250 120v english / latin american spanish 62210702 of5250 120v english / brazilian portuguese 62210703 of5400 120v english 62210401 of5400 120v english / lati...

  • Page 581

    Page: 322 service guide okifax 5250/5400 chapter d illustrated parts list consumables kit: image drum p/n 56116901 cartridge: toner p/n 52106701.

  • Page 582

    Page: 323 service guide okifax 5250/5400 chapter d illustrated parts list options 1 mb memory, no battery backup p/n 70029101 1.5 mb memory, battery backup p/n 70031501 2 mb memory, no battery backup p/n 70029201 2.5 mb memory, battery backup p/n 70031601 4 mb memory p/n 40231622 500 sheet letter/le...

  • Page 583

    Page: 324 service guide okifax 5250/5400 chapter e board layout diagram the boards used in the okifax 5250 and okifax 5400 are listed below. Main control board (e17) l unc-5 (network control unit) l power supply unit l o5wh (operator panel) board l s34 (modem) board modem (okifax 5400 only) l ctr (p...

  • Page 584

    Rev. No. Oki parts number description q'ty remarks 1 40040002 cord: op panel connection 1 40041002 rspl 2 4yb4120-1026p1 speaker 1 57001701 rspl 3 3ys4111-3527p2 cable: 2nd tray connector 1 56632801 rspl 4 4ys4111-3441p1 cord: connector (c1s) 1 56634501 rspl 5 4ys4111-3442p1 cord: connector (pc1/2) ...

  • Page 585

    11 40048201 connection cord-wire (psu) 1 n/a 12 40040101 connection cord-wire (spsu) 1 n/a 13 105a1062c0002 0443-167251 core 1 n/a 14 105a1068c1004 5fc-8 core 1 15 105a1070c0004 tfc-23-11-14 core 1 16 105a1070c0003 core: ferrite 1 55505203 rspl 17 4yb4120-1094p0001 secondary battery 56306901 18 4lp-...

  • Page 586

    Page: 325 service guide okifax 5250/5400 chapter f second paper feeder 1. Outline 1.1 functions 1.2 external view and component names (figure 1-1).

  • Page 587

    Page: 326 service guide okifax 5250/5400 chapter f second paper feeder 1.1 functions when the second paper feeder is installed with the okifax 5400 facsimile transceiver, the second paper feeder is connected to the facsimile by a connector. The second paper feeder supplies paper automatically throug...

  • Page 588

    Page: 327 service guide okifax 5250/5400 chapter f second paper feeder 1.2 external view and component names.

  • Page 589

    Page: 328 service guide okifax 5250/5400 chapter f second paper feeder 2. Mechanism description 2.1 general mechanism 2.2 hopper mechanism.

  • Page 590

    Page: 329 service guide okifax 5250/5400 chapter f second paper feeder 2.1 general mechanism the second paper feeder feeds the paper into the facsimile by receiving the signal from the facsimile, which drives the pulse motor inside the second paper feeder, and this motion is transmitted to rotate th...

  • Page 591

    Page: 330 service guide okifax 5250/5400 chapter f second paper feeder 2.2 hopper mechanism the hopper automatically feeds the facsimile with the paper being set, single sheet at a time. When the paper is loaded in the paper cassette, it is then transported by the pulse motor, carrying forward only ...

  • Page 592

    Page: 331 service guide okifax 5250/5400 chapter f second paper feeder 3. Parts replacement this section covers the procedures for the disassembly, reassembly and installations in the field. This section describes the disassembly procedures, and for reassembly procedures, basically proceed with the ...

  • Page 593

    Page: 332 service guide okifax 5250/5400 chapter f second paper feeder 3.1 precautions concerning parts replacement (1) parts replacements must be carried out, by first turning the facsimile power switch off "o" and removing the facsimile from the second paper feeder. (2) do not disassemble the seco...

  • Page 594

    Page: 333 service guide okifax 5250/5400 chapter f second paper feeder 3.2 parts layout this section describes the layout of the main components..

  • Page 595

    Page: 334 service guide okifax 5250/5400 chapter f second paper feeder 3.3 parts replacement methods this section describes the parts replacement methods for the components listed in the disassembly order diagram below. Second paper feeder stepping motor (hopping) (3.3.1) tqsb-2 pcb (3.3.2) hopping ...

  • Page 596

    Page: 335 service guide okifax 5250/5400 chapter f second paper feeder 3.3.1 stepping motor (hopping) (1) turn the facsimile power switch off, pull out the ac cord from the outlet. Remove the facsimile from the second paper feeder. (2) take the paper cassette assy 1 out of second paper feeder. (3) r...

  • Page 597

    (6) remove three screws 9 which are holding the guide r (2nd) assy 10 to the bottom plate 11. Remove the screw 12 which is keeping the rear cover 13 and guide r (2nd) assy 10. Remove the guide r (2nd) assy 10. (7) remove the protect (m) 14, guide bracket 15, planet gears 16 and planet gear bracket 1...

  • Page 598

    (9) remove three remaining screws 21 which are keeping the motor on the motor bracket 22, and remove the connector off the stepping motor 23. (10) remove two screws 24 on the stepping motor 23..

  • Page 600

    Page: 336 service guide okifax 5250/5400 chapter f second paper feeder 3.3.2 tqsb2-pcb (1) remove the pulse motor (see 3.3.1). (2) remove the connector 25 from the tqsb-2pcb 26. (3) remove the screw 27 and remove the tqsb-2pcb 26. Note: refer to detail a in previous section (see 3.3.1)..

  • Page 601

    Page: 337 service guide okifax 5250/5400 chapter f second paper feeder 3.3.3 hopping roller shaft assy and one-way clutch gear (1) follow up to step (3) of 3.3.1 and remove the hopping frame assy. (2) remove the screw 1 and remove the earth plate 2. Remove the sensor lever 7 and remove the ground pl...

  • Page 602

    Page: 338 service guide okifax 5250/5400 chapter f second paper feeder 4. Troubleshooting 4.1 precautions prior to the troubleshooting 4.2 preparations for the troubleshooting 4.3 troubleshooting method 4.3.1 lcd status message list.

  • Page 603

    Page: 339 service guide okifax 5250/5400 chapter f second paper feeder 4.1 precautions prior to the troubleshooting (1) go through the basic checking list provided in the user's documentation. (2) obtain as much information as you can from the user about the problem. (3) check in conditions similar ...

  • Page 604

    Page: 340 service guide okifax 5250/5400 chapter f second paper feeder 4.2 preparations for the troubleshooting (1) display on the operator panel the status of the problem is displayed on the lcd (liquid crystal display) on the operator panel. Go through the appropriate troubleshooting procedures ac...

  • Page 605

    Page: 341 service guide okifax 5250/5400 chapter f second paper feeder 4.3 troubleshooting method when a problem occurs, go through the troubleshooting according to the following procedure..

  • Page 606

    Page: 342 service guide okifax 5250/5400 chapter f second paper feeder 4.3.1 lcd status message list *1: indicates the same message on the display, when 1st or 2nd cassette becomes jam error (feeding). *2: however, if 1st cassette has recording paper, lcd indicates the standby mode on the display an...

  • Page 609

    Page: 343 service guide okifax 5250/5400 chapter f second paper feeder 5. Connection diagram 5.1 interconnection diagram 5.2 pcb layout.

  • Page 610

    Page: 344 service guide okifax 5250/5400 chapter f second paper feeder 5.1 interconnection diagram.

  • Page 611

    Page: 345 service guide okifax 5250/5400 chapter f second paper feeder 5.2 pcb layout.

  • Page 612

    Page: 346 service guide okifax 5250/5400 chapter f second paper feeder 6. Parts list 1: cabinet and cassette assembly.

  • Page 613

    2: paper feeder.

  • Page 614

    Rev. No. Oki-j part number description q'ty oki data p/n 1 1pp4122-1401p001 plate: upper 1 51023301.

  • Page 615

    2 3pa4122-1370g001 guide: sheet assembly 1 50222001 3 1pa4122-1369g001 cover: front assembly 1 53075301 4 3pa4122-1371g001 guide: inner assembly 1 50221501 5 1pa4122-1362g004 cassette assembly (2nd tray) 1 50107304 6 4pp4120-1009g001 frame: separation (f) assembly 1 53345801 7 1pp4122-1323p001 cover...

  • Page 616

    Page: 347 service guide okifax 5250/5400 chapter g rmcs system introduction all rmcs stands for the remote management center system. Rmcs refers to setting registration data and conducting the following types of maintenance operations from a remote location. (refer to figure 1) the purpose of this s...

  • Page 617

    Page: 348 service guide okifax 5250/5400 chapter g rmcs system 1. Notes to users 1.1 identifying the packaged contents 1.2 required devices 1.3 connectable peripheral equipment.

  • Page 618

    Page: 349 service guide okifax 5250/5400 chapter g rmcs system 1.1 identifying the packaged contents before using this system, the packaged contents with the package list. Contact your dealer if any component from the package..

  • Page 619

    Page: 350 service guide okifax 5250/5400 chapter g rmcs system 1.2 required devices the following devices and software are required to operate this system. Personal computer ibm pc/at or compatible model internal memory 300kb or more extended memory 1mb or more fixed disk drive 20mb or more display ...

  • Page 620

    Page: 351 service guide okifax 5250/5400 chapter g rmcs system 1.3 connectable peripheral equipment printer mouse microsoft mouse or equivalent telephone to use a mouse, a mouse driver program is required. This program is automatically incorporated by the installation program..

  • Page 621

    Page: 352 service guide okifax 5250/5400 chapter g rmcs system 2. Setup 2.1 mounting 2.1.1 mounting procedures 2.2 installation 2.2.1 registrering the rmcs basic system 2.2.2 registering the facsimile model no. 2.2.3 deleting the facsimile model no. 2.2.4 updating the password 2.2.5 updating the dip...

  • Page 622

    Page: 353 service guide okifax 5250/5400 chapter g rmcs system 2.1 mounting conceptual connection diagram of rmcs with other devices this system (rmcs model 20) is used fx050 series facsimile with pc-i/f. Conceptual connection diagram of rmcs model 20 with other devices.

  • Page 623

    Page: 354 service guide okifax 5250/5400 chapter g rmcs system 2.1.1 mounting procedures 1) before operation, disconnect the power plug of the ibm pc/at from the system plug socket. 2) disconnect the power plug of fx050 series facsimile, too and set pc-i/f board to the facsimile. 3) connect rs232c c...

  • Page 624

    Page: 355 service guide okifax 5250/5400 chapter g rmcs system 2.2 installation when the pc/at is activated by using the hard disk, insert an rmcs system disk into drive a. When c>_ is displayed, enter commands as shown below to activate the installation program. C> a:[enter] a> inst[enter] select p...

  • Page 625

    Page: 356 service guide okifax 5250/5400 chapter g rmcs system 2.2.1 registering the rmcs basic system the flow of new registration is different from that of updating. First, the flow of new registration is described below. 1) enter the drive no. Used to register the system. 2) enter the directory n...

  • Page 626

    4) when you use rmcs model 10, set the dip switches on the rmcs card. Normally, you need only press [enter]. When an other extension slot and conflicting address space are being used, change the address space with the dip switches, then set the contents by using 1 and 0. When you use rmcs model 20, ...

  • Page 627

    Page: 357 service guide okifax 5250/5400 chapter g rmcs system 2.2.2 registering the facsimile model no. 1) search the directory in which the system is registered. When the system is found, register the model number. 2) insert a disk corresponding to the model into drive a, then press any key. The m...

  • Page 628

    Page: 358 service guide okifax 5250/5400 chapter g rmcs system 2.2.3 deleting the facsimile model no. 1) search the directory in which the system is registered. When the system is found, a list of registered models is displayed. 2) select the model number to be deleted. This number is then displayed...

  • Page 629

    Page: 359 service guide okifax 5250/5400 chapter g rmcs system 2.2.4 updating the password 1) search the directory in which the system is registered. When the system is found, the old password is displayed on the screen. You are prompted to enter a new password. 2) register a new password of up to 1...

  • Page 630

    Page: 360 service guide okifax 5250/5400 chapter g rmcs system 2.2.5 updating the dip switches this setting is available for only rmcs model 10. 1) search the directory in which the system is registered. When the system is found, the dip switch setting is displayed. For the detail of setting, refer ...

  • Page 631

    Page: 361 service guide okifax 5250/5400 chapter g rmcs system 2.2.6 deleting the rmcs basic system 1) when to delete, enter [y], then whole rmcs system is deleted. When not to delete, enter [n]. The installation menu appears..

  • Page 632

    Page: 362 service guide okifax 5250/5400 chapter g rmcs system 3. Rmcs basic operation 3.1 activating and terminating the system 3.1.1 to activate 3.1.2 entering the id and password 3.2 tel directory 3.2.1 to terminate 3.2.2 selecting destination drive 3.3 main menu 3.4 environment setting.

  • Page 633

    Page: 363 service guide okifax 5250/5400 chapter g rmcs system 3.1 activating and terminating the system before activating the system if the facsimile terminal is equipped with a selector function to "enable" or "unable" remote maintenance, set to "enable" in advance..

  • Page 634

    Page: 364 service guide okifax 5250/5400 chapter g rmcs system 3.1.1 to activate enter the following command in the pc-dos command input state. C>rmcs after completing the necessary preparations, the id and password entry screen is displayed..

  • Page 635

    Page: 365 service guide okifax 5250/5400 chapter g rmcs system 3.1.2 entering the id and password the id is recorded in the operation report as part of the system operator history. Enter up to 50 alphanumeric characters except ["], [\] for the id. Enter the password registered at installation. When ...

  • Page 636

    Page: 366 service guide okifax 5250/5400 chapter g rmcs system 3.2 tel directory you can select such services (items) registration and deletion of information related to users. There are two ways to specify an item: select by using the up arrow key and the down arrow key, then press [enter] or enter...

  • Page 637

    Page: 367 service guide okifax 5250/5400 chapter g rmcs system 3.2.1 to terminate to terminate this system select "terminate" on tel directory menu screen or the main menu screen to return to pc-dos. Caution: after terminating remote management, restore the original facsimile terminal setting..

  • Page 638

    Page: 368 service guide okifax 5250/5400 chapter g rmcs system 3.2.2 selecting destination drive now, select the destination drive. Press [space] to change the drive name. Select "terminate" to stop processing and return to the tel directory menu screen. Select "execute" to copy user information bet...

  • Page 639

    Page: 369 service guide okifax 5250/5400 chapter g rmcs system 3.3 main menu the main menu screen varies according to fax models. There are two ways to specify an item: select by using the [up arrow] and [down arrow] keys, then press [enter] or enter the number before each item. "environment setting...

  • Page 640

    Page: 370 service guide okifax 5250/5400 chapter g rmcs system 3.4 environment setting selecting "environment setting" on the main menu to display this screen. Communication port setting: select communication port to connect the ibm pc/at and pc-i/f. Frame size setting: select a frame size for each ...

  • Page 641

    Page: 371 service guide okifax 5250/5400 chapter g rmcs system 4. Message modifying tool 4.1 activating the program 4.2 modifying message 4.2.1 file selection 4.3 saving message 4.3.1 confirmation 4.4 loading message 4.4.1 confirmation 4.5 other message file.

  • Page 642

    Page: 372 service guide okifax 5250/5400 chapter g rmcs system 4.1 activating the program after the computer finishes booting from the hard drive, insert the rmcs system disk into drive a. When c>_ is displayed, enter the following commands to activate the program. C>a: [enter] a> scrned [enter] the...

  • Page 643

    Page: 373 service guide okifax 5250/5400 chapter g rmcs system 4.2 modifying message file selection: select "message modify" on the menu screen, then the following screen is displayed. Enter the key no. Indicated on the left of the model to modify. Then the screen for file selection is displayed. Pr...

  • Page 644

    Page: 374 service guide okifax 5250/5400 chapter g rmcs system 4.2.1 file selection select the message title to modify. Select the position with [up arrow key], [down arrow key], [] keys, and press the [enter] key, then the position is selected. Press [page up] or [page down] to scroll the screen ba...

  • Page 645

    Page: 375 service guide okifax 5250/5400 chapter g rmcs system 4.3 saving message model selection: select "message save" on the menu screen. Then the following screen is displayed. Enter the key number indicated on the left side of the model with messages to store. Press [page up] or [page down] to ...

  • Page 646

    Page: 376 service guide okifax 5250/5400 chapter g rmcs system 4.3.1 confirmation select a drive with the [space] key. Since it is assumed that data is stored on a floppy disk, you can select drive a or drive b. When setup is ready, insert a formatted floppy into the drive and press the [enter] key,...

  • Page 647

    Page: 377 service guide okifax 5250/5400 chapter g rmcs system 4.4 loading message model selection: select "message load" on the menu screen, the following screen is displayed. Enter the key number indicated on the left side of the model with a message reset. Press [page up] or [page down] to scroll...

  • Page 648

    Page: 378 service guide okifax 5250/5400 chapter g rmcs system 4.4.1 confirmation select a drive with the [space] key. It is assumed that a message is loaded on the machine from the floppy disk, you can select drive a or drive b. When setup is ready, insert a floppy disk which stores the message int...

  • Page 649

    Page: 379 service guide okifax 5250/5400 chapter g rmcs system 4.5 other message file in addition to the "scrn oooo. Lx" file, the following message files are available. Rmcs system err_mess. Tx error message text rms_env. Tx operator id text sc oooo p. Tx printing screen text u_print. Tx printing t...

  • Page 650

    Page: 380 service guide okifax 5250/5400 chapter h product service bulletins h.1 general information okidata's product service bulletins contain technical information obtained after product release. Firmware updates, part number changes, and procedural changes are some of the subjects covered by the...

  • Page 651

    Page: 381 service guide okifax 5250/5400 chapter h product service bulletins okidata's web site okidata's web site provides easy access to okidata's product and service information. The business partner exchange (bpx) provides dealer-only information to okidata's sales and service providers. The inf...

  • Page 652

    Page: 382 service guide okifax 5250/5400 chapter i recommended spare parts list (rspl) i. General information recommended spare parts lists (rspl's) contain the current part numbers, descriptions, and pricing information for okidata product spare parts. The recommended spare parts lists are distribu...

  • Page 653

    Page: 383 service guide okifax 5250/5400 chapter i recommended spare parts list (rspl) okidata's web site okidata's web site provides easy access to okidata's product and service information. The business partner exchange (bpx) provides dealer-only information to okidata's sales and service provider...