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  4. C810
  5. Maintenance Manual

Oki C810 Maintenance Manual

Summary of C810

  • Page 1

    Oki data confidential c810 maintenance manual (oda/oel/aos) [rev.1] related drawings drawing no. Name 44072901tl c810 disassembly for maintenance 44072901tr c810 rspl bom use for certification body rev date dco no. Contents design approval approval takashi wakana design takashi wakana name c810 main...

  • Page 2

    44072903th rev.1 2 / oki data confidential document revision history rev. No. Date corrected items person in charge no. Page description of change 1 2009-02-25 issue t. Wakana rev. No. Date corrected items person in charge no. Page description of change document revision history.

  • Page 3

    44072903th rev.1 3 / oki data confidential this manual explains the maintenance methods for the c810dn. The manual has been prepared for use by the maintenance personnel. For operating methods of the c810dn, refer to the corresponding user's manual. In this manual, the printer name may be described ...

  • Page 4

    44072903th rev.1 4 / oki data confidential index index 1. Configuration .............................................................7 1.1 system configuration.......................................................................................... 8 1.2 printer configuration .........................

  • Page 5

    44072903th rev.1 5 / oki data confidential index 5. Maintenance menus ............................................... 112 5.1 system maintenance menu (for maintenance personnel) .............................113 5.2 maintenance utility ....................................................................

  • Page 6

    44072903th rev.1 6 / oki data confidential index 7.5.3. (8) cannot print ..................................................................................203 7.5.5 network troubleshooting ..........................................................................204 7.6 check of fuses .................

  • Page 7: Configuration

    Oki data confidential 1. Configuration 1.1 system configuration ..................................................................8 1.2 printer configuration ....................................................................9 1.3 composition of optional items .........................................

  • Page 8

    44072903th rev.1 8 / oki data confidential 1. Configuration 1.1 system configuration environmental humidity high-voltage i/f, fan control, cover-open k led head y led head m led head c led head operator panel pcb toner sensor pcb high-voltage pcb rfid pcb low-voltage pcb armored cpu paper feed solen...

  • Page 9

    44072903th rev.1 9 / oki data confidential 1. Configuration 1.2 printer configuration the internal part of the printer is composed of the following sections: • electrophotographic processing section • paper paths • control sections (cu sect./pu sect.) • operator panel • power supply sections (high-v...

  • Page 10

    44072903th rev.1 10 / oki data confidential 1. Configuration 1.3 composition of optional items the following optional items are available for the printer. (1) expanded tray (2) duplex-unit model name : cab-s1 (3) cabinet with wheels.

  • Page 11

    44072903th rev.1 11 / oki data confidential 1. Configuration division item contents external dimensions width 485mm depth 593mm height 345mm mass approx. 40kg print width print width a4 landscape print speed engine speed (a4 portrait) 30ppm (color) 32ppm (monochrome) print start first print time (tr...

  • Page 12

    44072903th rev.1 12 / oki data confidential 1. Configuration division item contents duration printer life 5 years or 600,000 pages print duty (m=l/12, a=l/12/5) max. 50,000 pages / mo. Average 10,000 pages / mo. Mtbf (2.3% duty) not applicable mpbf 100,000 pages mttr within 20 minutes toner life (is...

  • Page 13

    44072903th rev.1 13 / oki data confidential 1. Configuration division item contents commu- nication interface standard (on pcb) • hi-speed usb • ethernet option none input/ output switch auto emulation standard hiper-c emulation switch none font bit-map type face none scalable font none rasterizer n...

  • Page 14

    44072903th rev.1 14 / oki data confidential 1. Configuration 1.5 interface specifications 1.5.1 usb interface specifications 1.5.1.1 outline of usb interface (1) basic specifications usb (hi-speed usb supported) (2) transmission mode full speed (max. 12mbps ± 0.25%) high speed (max.480mbps ± 0.05%) ...

  • Page 15

    44072903th rev.1 15 / oki data confidential 1. Configuration 1.5.2 network interface specifications 1.5.2.1 outline of network interface basic specifications network protocols tcp/ip specification network layer arp, ip, icmp transport layer tcp, udp application layer lpr, por t 910 0, f tp, ht tp, i...

  • Page 16: Description of Operation

    Oki data confidential 2. Description of operation 2.1 electrophotographic process mechanism ................................. 17 2.2 printing process .........................................................................20

  • Page 17

    44072903th rev.1 17 / oki data confidential 2. Description of operation (1) electrophotographic process the electrophotographic process is explained briefly below: 1. Charging a voltage is applied to the ch roller to electrically charge the surface of the opc drum. 2. Exposure the led head radiates ...

  • Page 18

    44072903th rev.1 18 / oki data confidential 2. Description of operation (4) development toner adheres to the electrostatic latent image on the drum surface, thereby turning the electrostatic latent image into a toner image. 1. The sponge roller allows the toner to stick to the development roller. 2....

  • Page 19

    44072903th rev.1 19 / oki data confidential 2. Description of operation (6) fusing the toner image transferred on the paper is fused on the paper by heat and pressure when the paper passes through the heat roller and backup roller. The heat roller is heated by 800w and 350w internal halogen lamps, a...

  • Page 20

    44072903th rev.1 20 / oki data confidential 2. Description of operation 2.2 printing process the paper fed from tray1, tray2 or tray3 is carried by the paper feed roller, the registration roller l, and the transport roller. When the paper is fed from the mpt, it is carried by the mpt paper feed roll...

  • Page 21

    44072903th rev.1 21 / oki data confidential 2. Description of operation registration roller u (stop) paper paper registration motor (clockwise) registration motor (counterclockwise) wr sensor wr sensor solenoid lever (solenoid: off) solenoid lever (solenoid: off) hopping gear assy hopping gear assy ...

  • Page 22

    44072903th rev.1 22 / oki data confidential 2. Description of operation (4) up/down-motions of id units 1. The up/down-motions of the id units take place driven by the lift-up motor. 2. Figure 2-6 shows the motions of the different id units when the printer is operated for color print. As the lift-u...

  • Page 23

    44072903th rev.1 23 / oki data confidential 2. Description of operation (5) fuser unit and paper ejection 1. As illustrated in figure 2-8, the fuser unit and the eject roller are driven by the dc motor. As the fuser motor rotates (counterclockwise), the heat roller rotates. This roller fixes toner i...

  • Page 24

    44072903th rev.1 24 / oki data confidential 2. Description of operation outline of color registration correction the color registration is corrected by reading correction patterns that are printed on the belt with the color registration sensors located inside the sensor shutter under the belt unit. ...

  • Page 25

    44072903th rev.1 25 / oki data confidential 2. Description of operation error checking methods and remedial methods the color registration correction test function among the other self-diagnostic functions is employed to check errors. (section 5.3.2.6) remedial methods against different errors • cal...

  • Page 26

    44072903th rev.1 26 / oki data confidential 2. Description of operation outline of density correction the density is corrected by reading the correction pattern that is printed on the belt with the density sensor located inside the sensor shutter under the belt unit. Automatic start timing of densit...

  • Page 27

    44072903th rev.1 27 / oki data confidential 2. Description of operation shielding plate toner sensor shutter error checking methods and remedies the density correction test function among the other self-diagnostic functions is employed to check errors. (section 5.3.2.7) remedial methods against diff...

  • Page 28

    44072903th rev.1 28 / oki data confidential 2. Description of operation counter specifications total page count mpt page count tray 1 page count tray 2 page count tray 3 page count color page count monochrome page count description total number of prints number of print media hopped from mpt number ...

  • Page 29

    44072903th rev.1 29 / oki data confidential 2. Description of operation a4/letter conversion table each count should increase, in relation to every sheet of paper, by the values in the table below. Paper size simplex duplex letter 1 2 executive 1 2 legal14 1 2 legal13.5 1 2 legal13 1 2 tabloidextra ...

  • Page 30: Installation

    Oki data confidential 3. Installation 3.1 cautions, and do’s and don’ts ...................................................31 3.2 unpacking procedure ................................................................32 3.3 printer installation instructions ................................................

  • Page 31

    44072903th rev.1 31 / oki data confidential 3. Installation 3.1 cautions, and do’s and don’ts • do not install the printer in any high-temperature location or a near heat source. • do not install the printer in a location where chemical reaction may occur (laboratory and the like). • do not install ...

  • Page 32

    44072903th rev.1 32 / oki data confidential 3. Installation 3.2 unpacking procedure personal injury may occur. Since the printer weights approximately 40 kg, it should be lifted by two or more people. • remove the four handles from the sides of the box, as illustrated below, and lift the corrugated ...

  • Page 33

    44072903th rev.1 33 / oki data confidential 3. Installation 3.3 printer installation instructions • install the printer in a location where the following temperature and humidity are met: ambient temperature: 10 - 32°c ambient humidity: 20 - 80 % rh (relative humidity) maximum wet-bulb temperature: ...

  • Page 34

    44072903th rev.1 34 / oki data confidential 3. Installation 3.4 list of components and accessories • check to make sure that the components are free from damage, dirt or other irregularities in their appearance. • ensure that none of the accessories to the components is missing and that they are fre...

  • Page 35

    44072903th rev.1 35 / oki data confidential 3. Installation 3.5 assembly procedure 3.5.1 assembly of the printer main unit removing the protective materials (1) remove the desiccant and protective paper from the top of the printer. (2) remove the protective tapes (three places) and protective paper ...

  • Page 36

    44072903th rev.1 36 / oki data confidential 3. Installation installing the image drum cartridges (1) take out the image drum cartridge (four cartridges) gently. Note! • the image drum (green cylinder part) is very sensitive to scratches, therefore, special care should be taken on handling. • do not ...

  • Page 37

    44072903th rev.1 37 / oki data confidential 3. Installation (5) install the toner cartridges to the image drum cartridges. Note! The toner cartridges supplied with the product are capable of printing approximately 2,300 sheets (paper size:a4, print density:default, iso/iec 19798). A) take the toner ...

  • Page 38

    44072903th rev.1 38 / oki data confidential 3. Installation loading paper in the paper cassette (1) pull out the paper cassette. Note! Do not remove the rubber from the plate. (2) adjust the paper stopper and paper guide to the size of the paper being used. Note! When setting a6 size paper, move the...

  • Page 39

    44072903th rev.1 39 / oki data confidential 3. Installation loading paper in the multi-purpose tray (1) open the multi-purpose tray and also the paper supporter. (2) move the manual feed guide to the paper size. (3) align the edges of the paper. (4) insert the paper, print-face up, along the manual ...

  • Page 40

    44072903th rev.1 40 / oki data confidential 3. Installation 3.5.2 connection of the power cable power supply conditions • observe the following conditions: ac: 100v ± 10% power frequency: 50 hz or 60 hz ± 2 hz • if the available power is unstable, use a voltage regulator of the like. • the maximum p...

  • Page 41

    44072903th rev.1 41 / oki data confidential 3. Installation turning off the power note! Turning off the power without taking proper shutdown steps may damage and disable the printer. Be sure to follow the steps below. (1) press the "back" button for at least four seconds to display [shutdown start]....

  • Page 42

    44072903th rev.1 42 / oki data confidential 3. Installation 3.5.3 installation and recognition confirmation of options (1) installation of an additional tray unit an additional tray unit is intended for increasing the amount of paper that can be loaded in the printer, and two additional tray units c...

  • Page 43

    44072903th rev.1 43 / oki data confidential 3. Installation print the printer configuration by following the steps described in section 3.6. Check to make sure that every installed tray is shown in [print count] of [printer information]. Note! If every added tray is not shown there, remove every ins...

  • Page 44

    44072903th rev.1 44 / oki data confidential 3. Installation installation of a roller cabinet when placing the printer on the floor, it is recommended to use a roller cabinet. The printer main unit, or printer with additional trays can be set on the cabinet. This cabinet has rollers that allow users ...

  • Page 45

    44072903th rev.1 45 / oki data confidential 3. Installation 3. Place the printer on the stack of additional trays. Personal injury may occur. Since the printer weights approximately 40 kg, it should be lifted by two or more people. Align the holes on the bottom of the printer to the pins of the addi...

  • Page 46

    44072903th rev.1 46 / oki data confidential 3. Installation push the open button to open the top cover. Loosen a screw to detach the side cover of the printer. Top cover open button side cover screw unscrew the screw. Note! The screw is used to install the support plate, so make sure to keep it. Ins...

  • Page 47

    44072903th rev.1 47 / oki data confidential 3. Installation attach the side cover of the printer. Fix the side cover with the screw. Close the top cover. Close the front cover. Close the multi-purpose tray. Side cover screw 5. Attach anti-tip brackets. Attach an anti-tip bracket (for the front side)...

  • Page 48

    44072903th rev.1 48 / oki data confidential 3. Installation attach it to the left side with three screws. Attach it to the rear side with two screws. Attach the rest of anti-tip brackets (for each of the front side and the rear side) to the right side with the same steps through . Screw screw screw.

  • Page 49

    44072903th rev.1 49 / oki data confidential 3. Installation 6. Attach the anti-tip bracket covers. Attach covers to the anti-tip brackets by sliding the covers (six places). Cover cover 7. Attach the power cord and cables to the printer and turn on the power. 8. Check that the additional trays are c...

  • Page 50

    44072903th rev.1 50 / oki data confidential 3. Installation 3.6 printing of the menu map check that the printer operates correctly. (1) load a4 paper in tray. (2) press the menu select button several times until [information menu] appears. (3) press the enter button until [print menu map/execute] ap...

  • Page 51

    44072903th rev.1 51 / oki data confidential 3. Installation 3.7 connection methods note! Refer to the user’s manual for operating environment. Preparing a usb cable note! • no printer cable is supplied with the printer. Ask the user to prepare a printer cable. • ask the user to prepare a usb cable. ...

  • Page 52

    44072903th rev.1 52 / oki data confidential 3. Installation note! Refer to the user’s manual for operating environment. Preparing an ethernet cable note! An ethernet cable and a hub do not come with the printer. Ask the user to prepare an ethernet cable (a category 5 twisted pair cable, straight thr...

  • Page 53

    44072903th rev.1 53 / oki data confidential 3. Installation 3.8 checking of paper used by the user load the media used by the user in the printer, make media weight/media type settings, execute menu map /demo printing, and check the printout to make sure that no toner flakes off. Type weight or thic...

  • Page 54: Replacement of Parts

    Oki data confidential 4.1 notes on replacement of parts ..................................................55 4.2 part replacement procedure ......................................................57 4.3 portions lubricated ...................................................................96 this chap...

  • Page 55

    44072903th rev.1 55 / oki data confidential 4. Replacement of parts 4.1 notes on replacement of parts (1) prior to replacing a part, unplug the ac cord and the interface cable. (a) be sure to use the following procedure to unplug the ac cord: turn off the printer (the power switch to the off (o) pos...

  • Page 56

    44072903th rev.1 56 / oki data confidential 4. Replacement of parts maintenance tools: table 4-1-1 shows the tools necessary to replace printed-circuit boards and units: table 4-1-1: maintenance tools no. Maintenance tool quantity use remarks 1 no. 2-200 screwdriver with magnetic tip 1 3- to 5-mm sc...

  • Page 57

    44072903th rev.1 57 / oki data confidential 4. Replacement of parts 4.2 part replacement procedure this section describes the procedure for replacing the parts and assemblies shown in the disassembly diagram. 4.2.1 belt unit (1) open the top cover. (2) remove the image drum unit . (3) turn the two l...

  • Page 58

    44072903th rev.1 58 / oki data confidential 4. Replacement of parts 4.2.2 fuser unit (1) open the top cover. (2) pull the fuser unit lock lever (blue) in the direction of the arrow and detach the fuser unit . Top cover fuser unit lock lever (blue) fuser unit lock lever (blue).

  • Page 59

    44072903th rev.1 59 / oki data confidential 4. Replacement of parts 4.2.3 left side cover (1) open the top cover. (2) open the multi-purpose tray. (3) open the front cover. (4) remove the screw (silver-colored) to detach the left side cover (tool number 1). Front cover multi-purpose tray top cover.

  • Page 60

    44072903th rev.1 60 / oki data confidential 4. Replacement of parts 4.2.4 right side cover (1) open the top cover. (2) open the multi-purpose tray. (3) open the front cover. (4) loosen the screw and detach the right side cover (tool number 1). Top cover front cover (loosened) multi-purpose tray.

  • Page 61

    44072903th rev.1 61 / oki data confidential 4. Replacement of parts 4.2.5 rear cover assy. (1) pull out the duplex unit . (2) remove the two screws (silver-colored) (tool number 1). (3) sliding the rear cover assy in the direction of the arrow, detach it..

  • Page 62

    44072903th rev.1 62 / oki data confidential 4. Replacement of parts 4.2.6 led assy. (1) open the top cover. (2) remove the ffc cables. As shown in diagram (1), applying force in the direction of the arrow, unlatch the portion a, and then the portion b, to detach the led assy. . Top cover latch a lat...

  • Page 63

    44072903th rev.1 63 / oki data confidential 4. Replacement of parts 4.2.7 main controller pcb, image drum motor, image drum lift-up motor and feed motor (1) open the top cover. (2) remove the right side cover (see section 4.2.4). (3) remove the ten screws (silver-colored) and the plate shield assy. ...

  • Page 64

    44072903th rev.1 64 / oki data confidential 4. Replacement of parts (6) remove the four screws (silver-colored) to detach the image drum motor (tool number 1). (5) remove the five screws (silver-colored) to detach the main controller pcb ..

  • Page 65

    44072903th rev.1 65 / oki data confidential 4. Replacement of parts (7) remove the two screws (silver-colored) and the cable to detach the feed motor . (8) remove the two screws (silver-colored) and the cable to detach the image drum lift-up motor ..

  • Page 66

    44072903th rev.1 66 / oki data confidential 4. Replacement of parts 4.2.8 print engine controller pcb (1) remove the plate shield assy. (see section 4.2.7, (1) through (3)). (2) remove the two screws (silver-colored) and the reinforcement plate . (3) remove the all the connectors and the two screws ...

  • Page 67

    44072903th rev.1 67 / oki data confidential 4. Replacement of parts figure 4-2-8-1: print engine controller pcb cable routing diagram figure 4-2-8-2: print engine controller pcb connection diagram power belt option powfan hsol fsnsol relay hvolt hopidup size f s n s p e s s n s d c id o p e rfid cui...

  • Page 68

    44072903th rev.1 68 / oki data confidential 4. Replacement of parts 4.2.9 top cover assy. (1) remove the left side cover (see section 4.2.3). (2) remove the right side cover (see section 4.2.4). (3) remove the rear cover assy. (see section 4.2.5). (4) remove the plate assy. Shield (see section 4.2.6...

  • Page 69

    44072903th rev.1 69 / oki data confidential 4. Replacement of parts (8) remove the five screws (silver-colored) and slide out the main controller pcb assy. Rearward (tool number 1) (see section 4.2.7, (7)). (9) remove the screw (silver-colored), the two e-shaped retainer rings and the two torsion sp...

  • Page 70

    44072903th rev.1 70 / oki data confidential 4. Replacement of parts 4.2.10 top cover (1) remove the top cover assy. (see section 4.2.9). (2) remove the eleven screws (black) , the three screws (black) , cable cover and top cover . (tool number 1) (4) warp and remove the auxiliary top cover . (3) rem...

  • Page 71

    44072903th rev.1 71 / oki data confidential 4. Replacement of parts 4.2.11 operator panel assy. (1) open the top cover. (2) open the multi-purpose tray. (3) open the front cover. (4) remove the left and right side covers (see sections 4.2.3 and 4.2.4). (5) remove the plate shield assy. (see section ...

  • Page 72

    44072903th rev.1 72 / oki data confidential 4. Replacement of parts 4.2.12 board prp (1) open the top cover. Unlatched point b diagram (2) (2) unlatch the operator cover assy. At the two points, remove the ffc and the assy. (3) as shown in diagram (2), unlatch the operator panel cover assy. At the t...

  • Page 73

    44072903th rev.1 73 / oki data confidential 4. Replacement of parts 4.2.13 shaft-ejection assy. (fu) and shaft-ejection assy. (fd) (1) remove the rear cover assy. (see section 4.2.5). (2) remove the screw (silver-colored) to remove the guide-ejection-assy.-upper . (3) remove the gears-idler-ejection...

  • Page 74

    44072903th rev.1 74 / oki data confidential 4. Replacement of parts 4.2.14 guide-ejection assy.-lower, color-registration assy. And relay board (p6y) (1) remove the left side, right side and rear covers, the top cover assy., the print engine controller pcb and the guide-ejection assy.-upper (see sec...

  • Page 75

    44072903th rev.1 75 / oki data confidential 4. Replacement of parts (6) remove the right and left ffc connectors and the two connectors from the relay board (p6y) , and the connector from the color-registration assy . Remove the five screws (silver-colored) to detach color-registration assy. . (5) r...

  • Page 76

    44072903th rev.1 76 / oki data confidential 4. Replacement of parts (8) remove the two connectors and , and the ffc connector and the two screws (silver-colored) to detach the relay board (p6y) . (tool number 1) (7) remove the screw (silver-colored) to remove the contact assy. (tool number 1). Lcr d...

  • Page 77

    44072903th rev.1 77 / oki data confidential 4. Replacement of parts figure 4-2-14-11: relay board (p6y) cable routing diagram figure 4-2-14-2: relay board (p6y) connection diagram sns cn sns cn lcr dens rcr fuserin fuse r puif exit lcr dens rcr fuserin fuse r puif exit ⑨ ⑰ ⑨ ⑱ ⑲ ⑩ density sensor fus...

  • Page 78

    44072903th rev.1 78 / oki data confidential 4. Replacement of parts 4.2.15 fan (fuser), high-voltage power supply board, contact assy., fuser sensor assy. (1) remove the left side cover (see section 4.2.3). (2) pull out the connector from the high-voltage power supply board , and remove the two scre...

  • Page 79

    44072903th rev.1 79 / oki data confidential 4. Replacement of parts (5) remove the screw (silver-colored) to remove the fuser sensor assy. (tool number 1). (4) remove the four screws (silver-colored) to detach the contact assy. ..

  • Page 80

    44072903th rev.1 80 / oki data confidential 4. Replacement of parts 4.2.16 mpt assy., mpt hopping roller, separator and pick-up roller (1) remove the paper cassette. (2) open the multi-purpose tray, warp and remove the stay on each side and detach the mpt assy. . (3) lift the pick-up assy. And, bowi...

  • Page 81

    44072903th rev.1 81 / oki data confidential 4. Replacement of parts 4.2.17 registration roller assy. (1) remove the operator panel assy. (see section 4.2.11). (2) remove the motor (see section 4.2.7, (8)). (3) remove the left side cover (see section 4.2.3). (4) remove the mpt assy. (see section 4.2....

  • Page 82

    44072903th rev.1 82 / oki data confidential 4. Replacement of parts 4.2.18 gear box, registration/hopping roller assy. And solenoid (1) remove the registration roller assy. (see section 4.2.17). (2) unclamp the cable from the solenoid and remove the screw (silver-colored) to detach the solenoid. (3)...

  • Page 83

    44072903th rev.1 83 / oki data confidential 4. Replacement of parts (5) remove the two screws (silver-colored) and lift out the gear box . (4) remove the two screws (silver-colored) to remove the cable cover ..

  • Page 84

    44072903th rev.1 84 / oki data confidential 4. Replacement of parts (6) remove the four screws (silver-colored) , and pull up the hopping roller assy. Toward the front of the printer (tool number 1)..

  • Page 85

    44072903th rev.1 85 / oki data confidential 4. Replacement of parts 4.2.19 holder-switch assy., low-voltage power supply fan and low-voltage power supply (4) remove the image drum motor (see section 4.2.7, (6)). (5) remove the reinforcement plate (see section 4.2.8, (2)). (6) remove the screw (silve...

  • Page 86

    44072903th rev.1 86 / oki data confidential 4. Replacement of parts (8) remove the ac switch , the two screws (silver-colored) , the ground screw and the ac power supply cable . (7) remove the screw (silver-colored) , the two screws (silver-colored) , the ac cord connector and the power supply cover...

  • Page 87

    44072903th rev.1 87 / oki data confidential 4. Replacement of parts 4.2.20 belt motor assy. And fuser motor assy. (1) remove the main control pcb, print engine roller pcb (see sections 4.2.7 and 4.2.8). (2) remove the low-voltage power supply (see section 4.2.19, (7)). (3) remove the insulator . (4)...

  • Page 88

    44072903th rev.1 88 / oki data confidential 4. Replacement of parts (5) remove the four screws (silver-colored) to detach the fuser motor assy. ..

  • Page 89

    44072903th rev.1 89 / oki data confidential 4. Replacement of parts 4.2.21 side-r assy. And side-l assy. (1) see sections 4.2.1 to 4.2.20. (2) remove the two screws (silver-colored) to remove the image drum lift-up gear bracket . (3) remove the e-shaped ring and the image drum lift-up gear (r) (tool...

  • Page 90

    44072903th rev.1 90 / oki data confidential 4. Replacement of parts (6) remove the four screws (silver-colored) to remove the base plate . (7) remove the four screws (silver-colored) to remove the plate beam . (8) remove the two screws (silver-colored) to remove the plate-beam-rear . The side l assy...

  • Page 91

    44072903th rev.1 91 / oki data confidential 4. Replacement of parts 4.2.22 paper feed roller (tray 1) note! When replacing the paper feed roller of the tray 1, be sure to replace the separator of the tray 1. (1) turn off the printer and remove the paper cassette of the tray 1. (3) remove the spring ...

  • Page 92

    44072903th rev.1 92 / oki data confidential 4. Replacement of parts notes on attaching separator 1. Insert the hole of one leg of a new separator onto the support of the leg and, bending the other leg, push the separator from above so as to insert the other support into the hole of the other leg. Be...

  • Page 93

    44072903th rev.1 93 / oki data confidential 4. Replacement of parts 4.2.23 paper feed rollers (tray 2/3 (option)) note! Be sure to replace all of the three paper feed rollers. (1) turn off the printer and remove the paper cassette of the tray 2/3. (2) pressing the protrusions of the two paper feed r...

  • Page 94

    44072903th rev.1 94 / oki data confidential 4. Replacement of parts notes on attaching paper feed rollers 1. Insert a new paper feed roller (with a gear) onto the inside shaft and turn it all the way in place. 2. Insert a new paper feed roller (with no gears) onto the outside shaft and turn all the ...

  • Page 95

    44072903th rev.1 95 / oki data confidential 4. Replacement of parts 4.2.24 paper feed roller (multi-purpose tray) (1) turn off the printer and open the multi-purpose tray. (2) lift the paper pick-up section and, pressing the protrusion of the paper feed roller of the multi-purpose tray outward, remo...

  • Page 96

    44072903th rev.1 96 / oki data confidential 4. Replacement of parts 4.3 portions lubricated class amount applied (cc) width (mm) sample s a b c d e f 0.0005 0.003 0.005 0.01 0.03 0.05 0.1 1.24 2.25 2.67 3.37 4.86 5.76 7.26 w portions lubricated are shown in this section. The other portions must not ...

  • Page 97

    44072903th rev.1 97 / oki data confidential 4. Replacement of parts class-a em-30l to bearings class-a em-30l to bearings class-a em-30l to posts enlarged view gear-planet (z12)-hp stopper-hp holder-planet stopper-z45-48-hp shaft-hopping shaft-hopping class-c em-30l to gear bearing surfaces class-a ...

  • Page 98

    44072903th rev.1 98 / oki data confidential 4. Replacement of parts ② gear-holder-assy. Class-c molykote (em-30l) to hatched areas post-gear-holder spacer-coupled spacer-gear gear-planet-z24 gear-planet-z24 back of gear-planet-z24 class-b molykote (em-30l) to post holder-gear-a class-b em-30l to hat...

  • Page 99

    44072903th rev.1 99 / oki data confidential 4. Replacement of parts class-c molykote (em-30l) to hatched areas class-c molykote (em-30l) to hatched areas bearing-registration bearing ③ -1 roller-assy.-regist(lower) ③ -2 roller-assy.-regist(lower) class-c molykote (em-30l) to entire gear tooth surfac...

  • Page 100

    44072903th rev.1 100 / oki data confidential 4. Replacement of parts ④ guide-eject-upper paper paths free of grease paper paths free of grease small-amount class-a molykote (em-30l) to 7 hatched areas small-amount class-a molykote (em-30l) to 7 hatched areas class-c molykote (em30l) to bearings clas...

  • Page 101

    44072903th rev.1 101 / oki data confidential 4. Replacement of parts ⑤ motor-assy.-belt class-c molykote (em-30l) to 2 posts class-c molykote (em-30l) to gear tooth surfaces class-c molykote (em-30l) to gear end face gear-reduction-belt gear-idler-belt plate-belt-caulked ⑥ -1 plate-main-assy. Modera...

  • Page 102

    44072903th rev.1 102 / oki data confidential 4. Replacement of parts ⑥ -2 plate-main-assy. Class-f em-30l to 4 gear end faces gear-idler-drum gear-reduction id gear-idler-a plate-main-caulked gear-idler-b class-c em-30l to gear tooth surface and end face class-a em-30l to tooth surface class-f em-30...

  • Page 103

    44072903th rev.1 103 / oki data confidential 4. Replacement of parts moderate-amount class-c molykote (hp300) to tooth tips moderate-amount class-c molykote (hp300) to posts spring-planet re2-sk gear-planet-roller posts-planet bush-4 washer gear-planet-release plate-planet-fu ⑦ planet-assy. Plate-ma...

  • Page 104

    44072903th rev.1 104 / oki data confidential 4. Replacement of parts class-c em-30l to entire 4 hatched areas class-c em-30l to entire 4 hatched areas plate-side-r view a back of a-view ⑨ -1 plate-side-r-assy. ⑨ -2 plate-side-r-assy class-c molykote (em-30l) to hatched area plate-side-r.

  • Page 105

    44072903th rev.1 105 / oki data confidential 4. Replacement of parts ⑨ -3 plate-side-r-assy moderate-amount class-c molykote (hp300) to hatched areas gear-idler-fuser motor-assy.-fuser plate-side-r-assy. Class-c em-30l to entire hatched area gear-cassette-r ⑨ -4 plate-side-r-assy small-amount class-...

  • Page 106

    44072903th rev.1 106 / oki data confidential 4. Replacement of parts guide-cassette-l class-c em-30l to entire hatched area ⑩ -1 plate-side-l-assy. ⑩ -2 plate-side-l-assy. Class-c molykote (em-30l) to hatched area plate-side-l.

  • Page 107

    44072903th rev.1 107 / oki data confidential 4. Replacement of parts ⑩ -3 plate-side-l-assy small-amount class-a molykote (em-30l) to hatched areas small-amount class-a molykote (em-30l) to hatched areas enlarged view enlarged view (5-mm width) rack-lift-up-l class-a em-30l to hatched areas.

  • Page 108

    44072903th rev.1 108 / oki data confidential 4. Replacement of parts ⑪ sensor-regist-assy. ⑫ cassette-assy. Class-c molykote (em-30l) to posts (3 places) fuser-shutter class-c em-30l to rotational support points and sides frame-separation-assy. 1 2 areas free of grease ⑬ roller-assy.-idle(fd) grease...

  • Page 109

    44072903th rev.1 109 / oki data confidential 4. Replacement of parts class-c molykote (em30-l) to posts (2 places) class-c molykote (em-30l) to entire gear tooth surfaces gear-reduction-l-up3 plate-lift-up-caulked gear-reduction-l-up2 ⑭ -1 printer-unit (px736) cover-assy.-top sprint-torsion-r spring...

  • Page 110

    44072903th rev.1 110 / oki data confidential 4. Replacement of parts ⑭ -2 printer-unit (px736) shaft-lift-up (1) (2) (3) (4) (1) apply a moderate amount (class c) of molykote (em-30l) to the inner wall of the hole (the hatched area). (2) insert the shaft-lift-up from the plate-side-r side. (3) apply...

  • Page 111

    44072903th rev.1 111 / oki data confidential 4. Replacement of parts ⑭ -3 printer-unit (px736) 40 100 40 100 small-amount class-a pm to hatched areas (1) to apply: wipe the hatched areas with material like a cloth impregnated with a small amount of pm. (2) after applying pm, make sure that, by pulli...

  • Page 112: Maintenance Menus

    Oki data confidential the adjustment of this printer can be implemented using the maintenance utility and also by key input through the operator panel. This printer provides maintenance menus, apart from the normal menus. Select the menu that best suits the purpose of your intended adjustment. 5.1 s...

  • Page 113

    44072903th rev.1 113 / oki data confidential 5. Mentenance menus 5.1 system maintenance menu (for maintenance personnel) this menu is activated when the power is turned with the menu and menu keys held down. The menu indications are given in english only, irrespective of the destination of the print...

  • Page 114

    44072903th rev.1 114 / oki data confidential 5. Mentenance menus 5.2 maintenance utility the maintenance utility is used to perform the adjustments of table 5-2. Details of the maintenance utility are described below. (1) maintenance utility operation manual: 42678801fu01 rev.10 or later (japanese) ...

  • Page 115

    44072903th rev.1 115 / oki data confidential 5. Mentenance menus item adjustment section no. Of the mainte- nance utility operation operation on operator panel (section no. Corresponds to the mainte-nance manual) 11 consu- mable counter mainte- nance function copying of consumable part counters drum...

  • Page 116

    44072903th rev.1 116 / oki data confidential 5. Mentenance menus item adjustment section no. Of the mainte- nance utility operation operation on operator panel (section no. Corresponds to the mainte-nance manual) 23 auto density adjustment control parameter setting (must not be used) sets the auto d...

  • Page 117

    44072903th rev.1 117 / oki data confidential 5. Mentenance menus 5.3 functions of user's maintenance menu 5.3.1 maintenance menu (for end users) there is a maintenance menu category among the normal menu categories. (different from the system maintenance menus) the items that can be set under this m...

  • Page 118

    44072903th rev.1 118 / oki data confidential 5. Mentenance menus category operator panel display function item (upper display) value (lower display) mainte- nance menu smr setting 0 +1 +2 +3 -3 -2 -1 change a correction value for uneven print quality to correct print variations caused by variations ...

  • Page 119

    44072903th rev.1 119 / oki data confidential 5. Mentenance menus 5.3.2 self-diagnostic mode individual explanation of level0 and level1. 5.3.2.1 operator panel the explanation of the operations relating to the self-diagnosis presupposes, the following operation panel arrangement is required. Self-di...

  • Page 120

    44072903th rev.1 120 / oki data confidential 5. Mentenance menus level1 (1) switchover of menu items is activated when [back] or [online] is pressed and held down, or or buttom is pressed briefly is activated with or buttom. The item selection screen is restored when [back] is pressed and held down....

  • Page 121

    44072903th rev.1 121 / oki data confidential 5. Mentenance menus 5.3.2.2 normal self-diagnostic mode (level 1) the menus of the normal self-diagnostic mode are indicated below. Item self-diagnosis menu adjustment maintenance utility 1 switch scan test switch scan checking of inlet sensor and switch ...

  • Page 122

    44072903th rev.1 122 / oki data confidential 5. Mentenance menus 5.3.2.3 switch scan test this self-diagnosis is practiced to check the inlet sensors and switches. 1. Activate the self-diagnostic mode (level 1), press and hold down the menu or menu key, until "switch scan" appears in the upper line ...

  • Page 123

    44072903th rev.1 123 / oki data confidential 5. Mentenance menus table 5-3 switch scan display detail an asterisk "*" is displayed in the lower line. *1: l is displayed when the cover is open. *2: see section 7.7. The switches for each cassette size are numbered from 1 starting at the left hand side...

  • Page 124

    44072903th rev.1 124 / oki data confidential 5. Mentenance menus 5.3.2.4 motor clutch test this self-diagnosis is practiced to test motors and clutches. 1. Activate the self-diagnostic mode (level 1), press and hold down the menu or menu key, until "motor & clutch test" appears in the upper line of ...

  • Page 125

    44072903th rev.1 125 / oki data confidential 5. Mentenance menus table 5-4 unit name description of control for unit driving remarks id motor to be driven with all the ids (black/yellow/ magenta/cyan) removed. − belt motor to be driven with all the ids (black/yellow/ magenta/cyan) removed. − fuser m...

  • Page 126

    44072903th rev.1 126 / oki data confidential 5. Mentenance menus 5.3.2.5 test print this self-diagnosis is practiced to print test patterns built in pu. Other test patterns are stored in the controller. This print cannot be used to check the print quality. To diagnose abnormal images, follow section...

  • Page 127

    44072903th rev.1 127 / oki data confidential 5. Mentenance menus 4. When the enter key is depressed while "print execute" remains displayed in the lower line of the display section in the operation of item 2., the test print takes place with the set values specified in items 2 and 3. Pressing the ca...

  • Page 128

    44072903th rev.1 128 / oki data confidential 5. Mentenance menus • when print is executed, the following message is displayed: p=*** w=*** p : number of test-print pages (unit: sheets) w : print wait time (unit: seconds) • pressing the menu key switches over the indication. T=*** u=***[###] h=***%l=...

  • Page 129

    44072903th rev.1 129 / oki data confidential 5. Mentenance menus • pressing the menu key switches over the indication. Tr1:k**y**m**c** tr2:k**y**m**c** tr1 : transfer voltage parameter vtr1 table id no. [unit: hex] tr2 : transfer voltage parameter vtr2 table id no. [unit: hex] • pressing the menu k...

  • Page 130

    44072903th rev.1 130 / oki data confidential 5. Mentenance menus 5.3.2.6 color registration adjustment test this self-diagnosis is utilized to adjust color registration of the printer and to locate the cause of color misregistration. If any error occurs during a color registration test, restore the ...

  • Page 131

    44072903th rev.1 131 / oki data confidential 5. Mentenance menus 5.3.2.7 print density adjustment test this self-diagnosis is performed to test on the print density adjustment function of the printer and to view the result. This test is also performed to judge whether the print density adjustment me...

  • Page 132

    44072903th rev.1 132 / oki data confidential 5. Mentenance menus 5.3.2.8 indication of consumable part counters this self-diagnosis is practiced to indicate the consumed states of consumable parts. 1. Activate the normal self-diagnostic mode, and press and hold down the [menu ] key or [menu ] key, u...

  • Page 133

    44072903th rev.1 133 / oki data confidential 5. Mentenance menus 5.3.2.9 indication of printed page counters this self-diagnosis is practiced to indicate the current number of printed pages of the printer. 1. Activate the normal self-diagnostic mode, and press and hold down the [menu ] key or [menu ...

  • Page 134

    44072903th rev.1 134 / oki data confidential 5. Mentenance menus 5.3.2.11 setup of self-diagnostic function this self-diagnosis is practiced to enable/disable the error detections of the different types of sensors. The error detections can be disabled or enabled temporarily for troubleshooting purpo...

  • Page 135

    44072903th rev.1 135 / oki data confidential 5. Mentenance menus 5.3.3 various types of print on the individual printer equipped with controller menu map print print program version and information of cu configuration. Operation: (1) press the "enter" button to cause [information menu] to be display...

  • Page 136

    44072903th rev.1 136 / oki data confidential 5. Mentenance menus 5.4 setup after replacement of parts this subsection describes the necessary adjustments to be made when parts have been replaced. Replaced part adjustment led head note) not necessary image drum cartridge (y, m, c, k) not necessary fu...

  • Page 137

    44072903th rev.1 137 / oki data confidential 5. Mentenance menus (2) switching to shipping mode when the engine control pcb has been replaced with a new one, the printer still is in the factory work mode. Switch it to the shipping mode. • make the switching on the "subsection 2.4.1.1.2.2 factory/shi...

  • Page 138

    44072903th rev.1 138 / oki data confidential 5. Mentenance menus 5.4.3 setup of destination [checking method: menu map print] the destination is set prior to shipping out of a maintenance pcb. (maintenance pcbs area available for each destination.) basically, you don’t need to change the destination...

  • Page 139

    44072903th rev.1 139 / oki data confidential 5. Mentenance menus 5.5 about the manual setup of print density adjustment the printer is shipped out of the factory with its automatic density correction mode set to "auto". However, if that mode is changed to "manual" by the user, the density setting ma...

  • Page 140

    44072903th rev.1 140 / oki data confidential 5. Mentenance menus ❾ press the menu or menu key several times to display [set value]. ❿ press the enter key to add [*] to the right side of the value. ⓫ press the online switch to be [toner gauge display]. ❶ turn off the printer. Memo refer to “turning o...

  • Page 141

    44072903th rev.1 141 / oki data confidential 5. Mentenance menus category display of operation panel description set value (upper) set value (lower) op menu nearlife status enable disable sets whether to display the warning message if the life of ids, fuser units or belt units is near end. Usage men...

  • Page 142: Cleaning

    Oki data confidential 6. Cleaning 6.1 cleaning ................................................................................... 143 6.2 cleaning the led lens array ....................................................144 6.3 cleaning of pickup rollers .................................................

  • Page 143

    44072903th rev.1 143 / oki data confidential 6. Cleaning clean the interior and outside of the printer, as needed, using a waste cloth and small vacuum cleaner (hand cleaner). Note! Be careful not to touch the image drum terminals, led lens array and led head connectors. 6.1 cleaning.

  • Page 144

    44072903th rev.1 144 / oki data confidential 6. Cleaning 6.2 cleaning the led lens array if a vertical white band or white stripe (partial print, light print) is observed in the print face, clean the led lens array. Cleaning the led head execute this cleaning if an output shows a light fuzzy print o...

  • Page 145

    44072903th rev.1 145 / oki data confidential 6. Cleaning (3) wipe lightly the four lens surfaces of the led head with a soft tissue paper. Note! Do not use methyl alcohol, paint thinner or any other solvent, since they damage the led head. (4) close the top cover. Led head.

  • Page 146

    44072903th rev.1 146 / oki data confidential 6. Cleaning 6.3 cleaning of pickup rollers if vertical stripes are observed in the print face, clean the pickup rollers. Note! For cleaning, use a soft piece of cloth to avoid scratching the roller surface. Cleaning the fed rollers and pad execute this cl...

  • Page 147: Troubleshooting Procedures

    Oki data confidential 7. Troubleshooting procedures 7.1 precautions prior to repair ....................................................... 148 7.2 items to be checked prior to taking action on abnormal images ..................................................................... 148 7.3 precautions ...

  • Page 148

    44072903th rev.1 148 / oki data confidential 7. Troubleshooting procefrures 7.1 precautions prior to repair (1) confirm the basic check items indicated in the user's manual. (2) through hearing from the user, obtain information, as far in detail as possible, on the situation concerning the fault. (3...

  • Page 149

    44072903th rev.1 149 / oki data confidential 7. Troubleshooting procefrures 7.5 troubleshooting method if a trouble occurs in the printer, search for it by the following procedure. 7.5.1 lcd message list initializing lcd means no display in upper line. Ready led attention led description please wait...

  • Page 150

    44072903th rev.1 150 / oki data confidential 7. Troubleshooting procefrures lcd means no display in upper line. Ready led attention led description flash format off off displays that flash memory is being formatted. It is displayed it when resident/option flash memory not fomented are detected, or "...

  • Page 151

    44072903th rev.1 151 / oki data confidential 7. Troubleshooting procefrures normal lcd means no display in upper line. Ready led attention led description handling online on off shows on-line status. − offline off off shows off-line status. * ready led in off-line is always assumed to be off. To pri...

  • Page 152

    44072903th rev.1 152 / oki data confidential 7. Troubleshooting procefrures lcd means no display in upper line. Ready led attention led description handling preparing rinter varies varies checking toner cartridges. − adjusting temp. Varies varies shows cooling down status. It is cautious of a period...

  • Page 153

    44072903th rev.1 153 / oki data confidential 7. Troubleshooting procefrures lcd means no display in upper line. Ready led attention led description handling %color% waste toner full. Replace toner varies on this warning is displayed at cover open/close or power off/on after a waste- toner full error...

  • Page 154

    44072903th rev.1 154 / oki data confidential 7. Troubleshooting procefrures lcd means no display in upper line. Ready led attention led description handling fuser life varies on notifies the life of the fuser unit (warning). Displayed in a combination of other message in the first line. Warning only...

  • Page 155

    44072903th rev.1 155 / oki data confidential 7. Troubleshooting procefrures lcd means no display in upper line. Ready led attention led description handling □ density shutter error1 varies varies density adjustment shutter error 1. Error that does not occur at user level. Displayed only in factorymo...

  • Page 156

    44072903th rev.1 156 / oki data confidential 7. Troubleshooting procefrures lcd means no display in upper line. Ready led attention led description handling □ registration error n varies on when a color registration error is detected with coarse adjustment, or with the main- scan line adjustment. Pu...

  • Page 157

    44072903th rev.1 157 / oki data confidential 7. Troubleshooting procefrures lcd means no display in upper line. Ready led attention led description handling □ disk operation error %fs_err% varies on indicates file system errors other than the statuses related to the above file system. Processing wit...

  • Page 158

    44072903th rev.1 158 / oki data confidential 7. Troubleshooting procefrures when the printer detects an irrecoverable error, it displays a service call error in the lcd like the one given below: service call nnn: error note! "nnn" is an error code. When a service call error is issued, an error code ...

  • Page 159

    44072903th rev.1 159 / oki data confidential 7. Troubleshooting procefrures lcd online lamp check lamp description code nnn load %media_size%/ %media_type% and press online switch %errcode%:%tray% size mismatch ｽ off blink the size of paper or media type in the tray does not match the print data. Lo...

  • Page 160

    44072903th rev.1 160 / oki data confidential 7. Troubleshooting procefrures lcd online lamp check lamp description code nnn install memory %errcode%: memory overflow off blink indicates the memory overflow due the following reasons. The printer continues by pressing the online button. Install an exp...

  • Page 161

    44072903th rev.1 161 / oki data confidential 7. Troubleshooting procefrures lcd online lamp check lamp description code nnn open the top cover. %errcode%:paper multi feed off blink warns that inappropriate long paper has been fed from the tray. Check whether multi-feed has happened. Recovery print t...

  • Page 162

    44072903th rev.1 162 / oki data confidential 7. Troubleshooting procefrures lcd online lamp check lamp description code nnn check toner cartridge %errcode%: %color% improper lock lever position off blink shows that the toner cartridge lever has not been locked. Error 544 : y error 545 : m error 546 ...

  • Page 163

    44072903th rev.1 163 / oki data confidential 7. Troubleshooting procefrures lcd online lamp check lamp description code nnn shutdown off off indicates that the printer has completed shutting down. Error please pow off shutdown comp off off it is shown that the printer completed shutdown processing. ...

  • Page 164

    44072903th rev.1 164 / oki data confidential 7. Troubleshooting procefrures message cause error description handling power off/on 073: fatal error xxxxxxxx video error. A trouble was detected during image data development. (illegal data received) s the cu assy installed properly? Is the error issued...

  • Page 165

    44072903th rev.1 165 / oki data confidential 7. Troubleshooting procefrures message cause error description handling service call 127: fatal error error detected at the fuser unit cooling fan. Is fan connector connected properly? Does error reoccur? No yes no connect properly again. Replace fan moto...

  • Page 166

    44072903th rev.1 166 / oki data confidential 7. Troubleshooting procefrures message cause error description handling service call 169: fatal error upper side thermistor error is the error issued again? Yes turn on the power again. Leave the printer as is for 30 minutes, and turn on the power again. ...

  • Page 167

    44072903th rev.1 167 / oki data confidential 7. Troubleshooting procefrures message cause error description handling service call 231: fatal error rfid reader i/f error an interface error was detected with the rfid reader device. 01: communication error between the rfid reader and the engine pcb. 02...

  • Page 168

    44072903th rev.1 168 / oki data confidential 7. Troubleshooting procefrures 7.5.2 preparing for troubleshooting (1) lcd display malfunction ................................................................................... 169 (1-1) nothing is displayed in lcd. ........................................

  • Page 169

    44072903th rev.1 169 / oki data confidential 7. Troubleshooting procefrures 7.5.2.(1) lcd display malfunction memo for numbers of (1) through (26) after each connector name, refer to 7.5.2 (18) "connection diagrams". (1-1) nothing is displayed in lcd confirmation items confirmation tasks action at n...

  • Page 170

    44072903th rev.1 170 / oki data confidential 7. Troubleshooting procefrures (1-2) the first line is black display in lcd confirmation items confirmation tasks action at ng (1-2-1) check of connections connection between low voltage power supply unit and pu pcb check to see if the cord from the lower...

  • Page 171

    44072903th rev.1 171 / oki data confidential 7. Troubleshooting procefrures 7.5.2.(2) irregular operation of the device after turning on the power (2-1) no operation confirmation items confirmation tasks action at ng (2-1-1) check of parts related to power supply ac power supplied to the printer che...

  • Page 172

    44072903th rev.1 172 / oki data confidential 7. Troubleshooting procefrures confirmation items confirmation tasks action at ng (2-2-4) check of laying of cords laying of peripheral cords around each cooling fan check to see if the peripheral cords of the fan are laid so poorly that the fan blades ar...

  • Page 173

    44072903th rev.1 173 / oki data confidential 7. Troubleshooting procefrures (3) error number and jam location at paper jam error no. Name reference corresponding sensor jam release method 370 duplex reversal j1 dup-in ,dup-r jam release method ③ 371 duplex input j2 dup-f ,dup-r jam release method ③ ...

  • Page 174

    44072903th rev.1 174 / oki data confidential 7. Troubleshooting procefrures jam release method ① removing the jammed paper front cover section (codes: 372, 380, 390, 391, 400) open the front cover, and if the leading end or trailing end of the jammed paper is visible, pull out the paper slowly. If c...

  • Page 175

    44072903th rev.1 175 / oki data confidential 7. Troubleshooting procefrures jam release method ② fuser unit section (codes: 381, 382, 383,385) caution personal injuries may occur. The fuser unit can be very hot. Be careful not to touch it. If the unit remains hot, do not hasten to work, but wait, un...

  • Page 176

    44072903th rev.1 176 / oki data confidential 7. Troubleshooting procefrures (2) take out the image drum cartridges (4), and place them on a flat table. (3) cover the image drum cartridges thus taken out with a black sheet of paper. Note! • the image drums (green tubular parts) are extremely vulnerab...

  • Page 177

    44072903th rev.1 177 / oki data confidential 7. Troubleshooting procefrures jam release method ③ two -sided print unit section (codes: 370, 371, 373) (1) open the two-sided print unit cover by pushing the jam releasing lever of the two-sided print unit section. Jam release method ④ second tray unit ...

  • Page 178

    44072903th rev.1 178 / oki data confidential 7. Troubleshooting procefrures 7.5.2.(3) paper feed jam(error 391:1st tray) (3-1) paper feed jam occurs right after turning on the power (1st tray) confirmation items confirmation tasks action at ng (3-1-1) check of state of running route paper running ro...

  • Page 179

    44072903th rev.1 179 / oki data confidential 7. Troubleshooting procefrures confirmation items confirmation tasks action at ng (3-2-4) check of connections feed motor drive cord check the connected state of the cord. Check for incomplete connection or skew insertion, and check the cord visually to s...

  • Page 180

    44072903th rev.1 180 / oki data confidential 7. Troubleshooting procefrures 7.5.2.(4) paper feed jam (error 380) (4-1) paper feed jam occurs right after turning on the power confirmation items confirmation tasks action at ng (4-1-1) check of state of running route paper running route in front unit c...

  • Page 181

    44072903th rev.1 181 / oki data confidential 7. Troubleshooting procefrures confirmation items confirmation tasks action at ng (4-2-4) check the system connection paper feed motor drive cable check the connection condition of the cables. Check if the connector is connected in the half- way only or n...

  • Page 182

    44072903th rev.1 182 / oki data confidential 7. Troubleshooting procefrures (5-2) paper feed jam occurs right after paper feeding starts (multi-purpose tray) confirmation items confirmation tasks action at ng (5-2-1) check of state of running route paper running route in multi-purpose check to see i...

  • Page 183

    44072903th rev.1 183 / oki data confidential 7. Troubleshooting procefrures 7.5.2.(6) paper path jam(error 381) (6-1) paper path jam occurs right after turning on the power confirmation items confirmation tasks action at ng (6-1-1) check of state of running route paper running route in front unit. C...

  • Page 184

    44072903th rev.1 184 / oki data confidential 7. Troubleshooting procefrures confirmation items confirmation tasks action at ng (6-2-4) check of connections feed motor drive cord, id motor drive cord, belt motor, id- up motor drive cord, fuser drive cord check the connected states of the cords. Check...

  • Page 185

    44072903th rev.1 185 / oki data confidential 7. Troubleshooting procefrures (6-4) paper path jam occurs right after reaching the fuser unit confirmation items confirmation tasks action at ng (6-4-1) check of operating state of motors fuser motor conduct the motor and clutch test of the self- diagnos...

  • Page 186

    44072903th rev.1 186 / oki data confidential 7. Troubleshooting procefrures confirmation items confirmation tasks action at ng (7-1-4) check of connections signal cord for motor driver pcb, exit sensor cord check to see if the ffc is properly plugged in the relay connector ⑧ of the pu pcb and the pu...

  • Page 187

    44072903th rev.1 187 / oki data confidential 7. Troubleshooting procefrures 7.5.2.(8) duplex print jam(error 370, 371, 372, 373, 383) (8-1) duplex print jam occurs right after turning on the power confirmation items confirmation tasks action at ng (8-1-1) check of state of running route paper runnin...

  • Page 188

    44072903th rev.1 188 / oki data confidential 7. Troubleshooting procefrures confirmation items confirmation tasks action at ng (8-2-4) check of operating state of motor duplex motor conduct the motor and clutch test of the self- diagnostic mode, and check the operation of the duplex motor. Make this...

  • Page 189

    44072903th rev.1 189 / oki data confidential 7. Troubleshooting procefrures (8-5) paper is not fed to a regist roller from duplex section confirmation items confirmation tasks action at ng (8-5-1) check the operational condition of the clutch duplex clutch conduct the motor and clutch test of the se...

  • Page 190

    44072903th rev.1 190 / oki data confidential 7. Troubleshooting procefrures 7.5.2.(10) id unit up-down error(service call 140-143) (10-1) an error occurs in the operation of id unit up confirmation items confirmation tasks action at ng (10-1-1) check for load in the ascent load in installing/ removi...

  • Page 191

    44072903th rev.1 191 / oki data confidential 7. Troubleshooting procefrures 7.5.2.(11) fuser unit error(error 170-177) (11-1) an error occurs right after turning on the power confirmation items confirmation tasks action at ng (11-1-1) malfunction of thermistors note! Upper thermistor, lower thermist...

  • Page 192

    44072903th rev.1 192 / oki data confidential 7. Troubleshooting procefrures 7.5.2.(12) motor fan error(error 120, 127, 051) (12-1) low voltage power unit fan or cu fan does not rotate right after turning on the power confirmation items confirmation tasks action at ng (12-1-1) connections and laying ...

  • Page 193

    44072903th rev.1 193 / oki data confidential 7. Troubleshooting procefrures 7.5.2.(14) option unit is not recognized (14-1) duplex unit is not recognized confirmation items confirmation tasks action at ng (14-1-1) duplex pcb duplex unit check to see if the duplex unit in use conforms to the printer....

  • Page 194

    44072903th rev.1 194 / oki data confidential 7. Troubleshooting procefrures 7.5.2.(15) led head is not recognized(error 131, 132, 133, 134) (15-1) service call 131-134(led head missing) confirmation items confirmation tasks action at ng (15-1-1) check of connections connected state between cu pcb co...

  • Page 195

    44072903th rev.1 195 / oki data confidential 7. Troubleshooting procefrures note! How to check a toner sensor operation with switch scan in the self- diagnosis mode. (1) confirmation of the operation in the device 1. Change to a display that a changing situation of the toner sensor is confirmed from...

  • Page 196

    44072903th rev.1 196 / oki data confidential 7. Troubleshooting procefrures 7.5.2.(17) fuse cutout error (error 150-155) (17-1) fuse cutout errors confirmation items confirmation tasks action at ng (17-1-1) check of connections ffc interconnecting the pu pcb and the toner sensor pcb (prz pcb) check ...

  • Page 197

    44072903th rev.1 197 / oki data confidential 7. Troubleshooting procefrures hvolt fuser right end fan shutter solenoid fuser motor (dc) belt motor id motor (dc) id-up motor hopping motor relay relay rfid antenna board-pol toner-low sensor toner-low sensor toner-low sensor toner-low sensor paper-end ...

  • Page 198

    44072903th rev.1 198 / oki data confidential 7. Troubleshooting procefrures 7.5.3 image problem troubleshooting a: light or faded image on whole page b: dirty background c: blank d: vertical black belt or line e: defective image of regular interval f: vertical white belt or line figure 7.2 note! Rea...

  • Page 199

    44072903th rev.1 199 / oki data confidential 7. Troubleshooting procefrures 7.5.3.(1) color is totally pale (fig.7.2 a) (1-1) color is pale confirmation items confirmation tasks action at ng (1-1-1) toner remaining quantity of toner check to see if "order toner" or "replace toner" appears on the ope...

  • Page 200

    44072903th rev.1 200 / oki data confidential 7. Troubleshooting procefrures 7.5.3.(2) background is dirty (fig.7.2 b) (2-1) background is dirty (partly) confirmation items confirmation tasks action at ng (2-1-1) id unit drum exposed to light check to see if the id unit has been left in an environmen...

  • Page 201

    44072903th rev.1 201 / oki data confidential 7. Troubleshooting procefrures 7.5.3.(3) blank print (fig.7.2 c) (3-1) blank on the whole page confirmation items confirmation tasks action at ng (3-1-1) state of toner remaining quantity of toner check to see if a sufficient quantity of toner remains in ...

  • Page 202

    44072903th rev.1 202 / oki data confidential 7. Troubleshooting procefrures 7.5.3.(5) cyclic print trouble (refer to fig.7.2 e) (5-1) vertical cyclic print trouble confirmation items confirmation tasks action at ng (5-1-1) periodicity image drum check to see if the periodicity is 94.3 mm or not. Rep...

  • Page 203

    44072903th rev.1 203 / oki data confidential 7. Troubleshooting procefrures 7.5.3.(7) solid black print (7-1) solid black on a full page confirmation items confirmation tasks action at ng (7-1-1) high-voltage contact state ch terminal check visually from above to see if the terminal extending from t...

  • Page 204

    44072903th rev.1 204 / oki data confidential 7. Troubleshooting procefrures 7.5.5 network troubleshooting (1) cannot print from utility. Confirmation items confirmation tasks action at ng (1) check of link light check to see if the link light (green) is on. Check to see if the hub and the printer ar...

  • Page 205

    44072903th rev.1 205 / oki data confidential 7. Troubleshooting procefrures 7.6 check of fuses if any of the following errors is issued, check the corresponding fuse on the cu control pcb (sp2 pcb), pu control pcb or high-voltage power supply pcb. (see table 7-6.) table 7-6 fuse error fuse name erro...

  • Page 206

    44072903th rev.1 206 / oki data confidential 7. Troubleshooting procefrures 7.7 paper cassette switches versus paper size correspondence table bit no. Dial indication size (oel) dial indication size (oda) 1 2 3 4 tray1 tray2/3 tray1 tray2/3 h h h h no cassette no cassette no cassette no cassette l l...

  • Page 207: Connection Diagrams

    Oki data confidential 8. Connection diagrams 8.1 check of resistance values .....................................................208 8.2 component layout ................................................................... 212.

  • Page 208

    44072903th rev.1 208 / oki data confidential 8. Connection diagrams 8.1 check of resistance values unit circuit diagram & configuration part schematic resistance value transport belt motor red brown yellow blue m 1 2 3 4 between pin 1 and pin 2: 3.4 Ω between pin 3 and pin 4: 3.4 Ω id motor f1 both ...

  • Page 209

    44072903th rev.1 209 / oki data confidential 8. Connection diagrams unit circuit diagram & configuration part schematic resistance value id up/ down motor m 1 2 3 4 between pin 1 and pin 2: 6.1 Ω between pin 3 and pin 4: 6.1 Ω fuser unit motor ip1 both ends of ip: 1 Ω or less.

  • Page 210

    44072903th rev.1 210 / oki data confidential 8. Connection diagrams unit circuit diagram & configuration part schematic resistance value feed motor m 1 2 3 4 between pin 1 and pin 2: 3.4 Ω between pin 3 and pin 4: 3.4 Ω duplex motor m 1 2 3 4 between pin 1 and pin 2: 2.4 Ω between pin 3 and pin 4: 2...

  • Page 211

    44072903th rev.1 211 / oki data confidential 8. Connection diagrams unit circuit diagram & configuration part schematic resistance value fuser unit 1 2 3 4 5 6 7 a7 a6 a5 a4 a3 a2 a1 b6 b5 b4 b3 b2 b1 1 2 3 4 5 6 upper #2 350w upper #1 800w lower 50w correction thermistor (pt3-312) upper side thermi...

  • Page 212

    44072903th rev.1 212 / oki data confidential 8. Connection diagrams 8.2 component layout (1) print engine controller pcb (pu pcb) component side r9 r79 r5 c6 rm1 r23 r24 r27 r83 r25 r82 c7 c37 fet1 fet3 fet4 rm4 r102 r104 rm3 rm5 fet2 c13 c19 r54 r85 r56 r84 r35 c11 c12 c9 c10 c8 r42 r99 c45 c18 r39...

  • Page 213

    44072903th rev.1 213 / oki data confidential 8. Connection diagrams solder side c562 r612 r615 r613 r614 r513 r644 c563 c565 c564 c504 c506 rm501 ic503 q508 q507 r597 c545 c514 c519 c516 c540 c538 c539 fet504 fet509 fet510 q506 q505 r558 r549 r582 r581 r592 r591 r595 d503 fet506 fet505 r646 r600 c55...

  • Page 214

    44072903th rev.1 214 / oki data confidential 8. Connection diagrams (2) main controller pcb (sp2 pcb) component side 1 1 2 10 256 64 108 109 144 1 37 72 73 7 1 2 8 2 3 4 1 1 1 1 1 24 24 24 24 28 28 28 28 1 24 25 48 65 128 129 192 12 1 9 r11 r37 r180 r179 r51 r50 r173 r59 r58 r72 r96 r97 za1 r98 r89 ...

  • Page 215

    44072903th rev.1 215 / oki data confidential 8. Connection diagrams solder side c641 r660 r659 r658 r657 r656 r655 r654 r653 r652 r651 r650 dbf532 dbf524 dbf512 dbf511 rm513 rm511 rm526 rm525 l502 ic503 c576 32 16 64 49 48 33 17 1 bf504 c616 c611 c594 r571 c630 r520 r587 c599 c596 c591 c593 c588 c58...

  • Page 216

    44072903th rev.1 216 / oki data confidential 8. Connection diagrams (3) junction pcb (p6y pcb) component side solder side lcr cp1 cp2 dens rcr 4 1 fuserin 3 1 5 1 4 1 j2 j3 10 1 21 1 fuser puif 1 6 exit j1 j4 j7 c1 j6 j5 bfuse bfucut.

  • Page 217

    44072903th rev.1 217 / oki data confidential 8. Connection diagrams solder side r556 r552 j505 c504 r524 r522 r521 j509 d507 d505 d506 d504 j506 r518 r526 c503 r514 r515 j502 r507 j518 r520 r508 r509 r510 j504 ic501 c535 j524 r580 c534 r577 c53 3 r57 9 j523 j516 r575 r559 c532 r576 r558 r574 r573 r5...

  • Page 218

    44072903th rev.1 218 / oki data confidential 8. Connection diagrams (5) second tray control pcb (v7y-3 pcb) component side main1 1 j11 13 main2 1 14 j8 j9 j20 cp2 sns03 sns12 1 1 6 6 j24 j21 j18 osc j3 j26 j2 j4 j12 j13 j25 j19 j17 j1 j31 j32 j33 j29 j27 j6 j7 j10 j28 j5 j15 j16 j30 j34 j35 1 1 3 1 ...

  • Page 219

    44072903th rev.1 219 / oki data confidential 8. Connection diagrams (6) control panel pcb (ppk pcb) component side solder side sw 1 cp1 sw 2 sw 3 sw 4 sw 5 sw 6 jp8 jp17 jp16 jp12 jp30 jp29 jp31 jp20 jp27 jp26 jp25 jp24 jp23 jp5 jp4 jp10 jp18 jp19 jp15 jp7 jp11 jp1 cn1 10 1 jp22 jp21 jp14 jp28 ic1 j...

  • Page 220

    44072903th rev.1 220 / oki data confidential cn3 cn 6 cn2 to low voltage fan to pu pcb power connector short-circuit plug for cn6 notes! Cn6: connector for switching ac input voltage setting. Short-circuit plug installed for 120-v system/short-circuit plug not installed for 230-v system 8. Connectio...

  • Page 221

    44072903th rev.1 221 / 221 oki data confidential 8. Connection diagrams (12) id unit fuse id unit id unit (for consumables) contacts contacts toner-low sensor pcb (prz pcb) (13) transfer belt unit fuse transfer belt unit (for consumables) transfer belt unit driver junction pcb (p6y pcb) contacts con...