1. Manuals
  2. Brands
  3. Oki Manuals
  4. Printer
  5. OKIPAGE 8c Plus
  6. Maintenance manual

Oki OKIPAGE 8c Plus Maintenance Manual

Color led page printer
Hide thumbs Also See for OKIPAGE 8c Plus:
Table of Contents

Advertisement

Quick Links

Download this manual See also: User Manual
OKIPAGE 8c Plus
/ OKICOLOR 8
Color LED Page Printer
MAINTENANCE
MANUAL
ODA/OEL/INT
1999.8.12 Rev.1
1 / 199
41057601TH Rev.1

Advertisement

Table of Contents
loading

Related Manuals for Oki OKIPAGE 8c Plus

Summary of Contents for Oki OKIPAGE 8c Plus

  • Page 1: Maintenance Manual

    OKIPAGE 8c Plus / OKICOLOR 8 Color LED Page Printer MAINTENANCE MANUAL ODA/OEL/INT 1999.8.12 Rev.1 1 / 199 41057601TH Rev.1...
  • Page 2 Rev.No. Date Corrected items Person in Page Description of change change 1999.8.12 ISSUE E4 Yamazaki 41057601TH Rev.1...

  • Page 3: Okicolor

    OKICOLOR 8 / OKIPAGE 8c Plus in any manner. [Warning] Many parts of OKICOLOR 8 / OKIPAGE 8c Plus are very sensitive and can be easily damaged by improper servicing. We strongly suggest that OKICOLOR 8 / OKIPAGE 8c Plus be serviced by OKI’s authorized technical service engineers.

  • Page 4: Table Of Contents

    CONTENTS 1. SPECIFICATIONS .................... 7 Basic System Configuration ..................... 7 Printer Specifications ....................... 8 Option Specifications ....................... 9 Basic Specifications ....................... 10 2. OPERATION ....................12 Main Control Board (PCE PCB) ..................13 Engine Control Board (PX4 PCB) .................. 16 Power/Units ........................
  • Page 5 3.3.19 Hopping Motor ....................66 3.3.20 Gear One-way ....................67 3.3.21 Feeder Unit Front ..................... 68 3.3.22 Manual Feed Hopper Assy ................69 3.3.23 Guide Paper Input Assy ..................70 3.3.24 Two Lever Input Sensors, Lever 2nd Feed Sensor .......... 71 3.3.25 Roller Registration, Roller Assy Hopping ............
  • Page 6 7. WIRING DIAGRAM ..................146 Resistance Check ......................146 Program/Font ROM Location ..................150 8. Parts List ...................... 154 Appendix A CENTRONICS PARALLEL INTERFACE ........175 Appendix B HIGH CAPACITY SECOND PAPER FEEDER ......179 1. OUTLINE ...................... 179 Functions ........................179 External View and Component Names ................

  • Page 7: Specifications

    SPECIFICATIONS Basic System Configuration The basic system configuration of OKICOLOR 8 / OKIPAGE 8c Plus is illustrated in Figure 1.1. 41057601TH Rev.1...

  • Page 8: Printer Specifications

    Printer Specifications This printer unit is composed with the following hardware. • Electro-photographric processor • Paper feeder • Controller (CU part / PU Part) • Operator panel • Power board (High voltage part / PU part) Figure 1-2 show the printer unit configuration. Stacker Cover Assy Face-up Stacker Assy I/F Cover Assy...

  • Page 9: Option Specifications

    Option Specifications Options available for OKICOLOR 8 / OKIPAGE 8c Plus are as follows. 2nd-Feeder RAM SIMM module (72 pin SIMM, 4MB/8MB/16MB/32MB) * Make sure to use a set of 2 of the same volume size modules. 41057601TH Rev.1...

  • Page 10: Basic Specifications

    Basic Specifications Dimensions Width: 18.8" (478mm) Length: 24.5" (622mm) Height: 15.6" (396mm) Weight Approx. 48kg (106lbs) Form Type: Ordinary paper (Hammermill 24lbs) and OHP (Only CG3710) Recommended paper (for color printing) Color laser paper (20lb to 24lbs) Note: The printout color tones are dependent upon the whiteness of the print paper Sizes: Letter, Legal (13"or 14"), Executive, A4, A5, B5, and A6 (1st tray and front feeder)
  • Page 11 (13) Temperatures and relative humidities Temperature Temperature conditions Temperature (in _F) Temperature (in _C) Remarks Operating 50 to 89.6 10 to 32 17_C to 27_C (for assurance of full-color printout quality) Power off Non-operating 32 to 109.4 0 to 43 with drum and toner Storage (1 year max.) 14 to 109.4...

  • Page 12: Operation

    OPERATION OKICOLOR 8 / OKIPAGE 8c Plus is a tandem color electrophotographic page printer, using 4992- LED technologies , OPC, dry single-component non-magnetic developing, roller transfer, heat- compression fixing and so on. The printing method used is a Black Writing method which applies light beams to printout areas.

  • Page 13: Main Control Board (Pce Pcb)

    ModeIn ModeIn ModeClock ModeClk MasterClock uPU66044 GN-014-LMU 2nd cache controller 74LVC161284 Bi-Centro SysAD SysCmd Control Control OKI HSP 2nd cache SysAD Control Reset (Not installed) Host I/F Reset circuit RSTIN DIP SW (TE6135 (6137), 16550, 53C80) Figure 2.2 41057601TH Rev.1...
  • Page 14 The CPU is a 64-bit RISC architecture processor (provided by NEC). It inputs a frequency of 50MHz and runs at 200MHz. It transfers data to and from memory at 50MHz. OTP ROM The otp ROM block consists of four 16Mbit (1M x 16bits) chips and its total size is 8M bytes. The chips are mounted on the PCE-PCB by means of IC sockets and store programs and character fonts.
  • Page 15 (For the electrical/physical characteristics of this interface, see APPENDIX B) (b) HSP interface (Option) This interface (slot) is an OKI unique universal interface that provides the platform to connect various of boards (including those supplied by third venders) such as the LAN connection expansion board and SCSI expansion board.

  • Page 16: Engine Control Board (Px4 Pcb)

    The engine control block (PU) is controlled by the engine control board (PX4 PCB) which consists of a CPU (MSM65524), general purpose LSI chips, EPROM, EEPROM, pulse motor drivers, and video memory. (See Figure 2.4.) This is an 8-bit CPU (OKI MSM65524) containing the AD converter and controls the whole system. General-purpose LSI...

  • Page 17: Power/Units

    EPROM This EPROM (27C512-150) has a storage capacity of 512K bits and stores programs for the PU block. EEPROM This EEPROM (NM93C66N-NW) having a storage capacity of 4K bits is mounted on the board by means of IC socket and stores adjustment values etc. Pulse motor drivers These drivers (MTD2005F) drive eight pulse motors for moving up and down the EP and transferring medium.

  • Page 18: Mechanical Processes

    Mechanical Processes Figure 2.5 shows the mechanical processes of OKICOLOR 8/ OKIPAGE 8c Plus. Figure 2.5 41057601TH Rev.1...

  • Page 19: Electrophotographic Processing Mechanism

    2.4.1 Electrophotographic processing mechanism Electrophotographic processes Each process of the electrophotographic processing mechanism is outlined below. 1 Paper pickup This process causes the roller to give a DC voltage to the paper to have a negative charge. With this negative charge, the paper is electrostatically attracted to the roller. 2 Charging This process gives a DC voltage to the CH roller so that the OPC drum may have a uniform negative charge on its surface.
  • Page 20 (2) Paper pickup Pickup roller Paper (medium) Conveying belt Conveying belt Driven roller Power supply A DC voltage (0V to 2KV) is applied to the driven roller A to positive charge the lower surface of the paper. The negatively-charged paper is electrostatically attracted to the pickup roller. With this, the paper is in close-contact with the conveying Belt and conveyed steadily.
  • Page 21 Charging This process applies a DC voltage to the charging roller in contact with the surface of the OPC drum. Power supply Charging roller unit OPC drum Exposure The light beams from the LED head are applied to the surface of the OPC drum which is charged negatively.
  • Page 22 Developing This process applies toner to the latent image on the surface of the drum to convey it into a toner image. Developing is carried out on the surface of the OPC drum at which the OPC drum is in contact with the developing roller. 1 The sponge roller transfers toner to the developing roller.
  • Page 23 Transferring The transfer roller made of conductive sponge presses the paper against the surface of the OPC drum so that the paper may be close contact with the surface of the OPC drum. This process fits the paper to the surface of the OPC drum by the transfer roller and applies positive charge (opposite to the charge of the toner) from under the paper.
  • Page 24 Fixing The toner image just transferred to the paper is fused and fixed to the paper while the paper is passing through the gap between the heat roller and the backup roller. The teflon-coated surface of the heat roller is heated up by the 800-watt heater (or a halogen lamp) provided in the heat roller.

  • Page 25: Paper Running Process

    2.4.2 Paper running process Figure 2.6 shows how paper moves in the OKICOLOR 8/ OKIPAGE 8c Plus. Figure 2.6 Paper Route 41057601TH Rev.1...
  • Page 26 Paper hopping and transfer and up/down movement of pinch roller 2 Paper is hopped and delivered by the mechanism shown below. This mechanism is driven by a single pulse motor. Resist roller 2 One-way gear C Resist roller 1 Idle gear C One-way gear B Idle gear A Idle gear B...
  • Page 27 (a) Hopping 1 The pulse motor turns in the arrow direction of “a” (counterclockwise) and drives the hopping roller to move the paper until the Entrance sensor turns on. Although the one- way gears B and C are also driven, the resist roller 2 does not turn because the reverse rotations of the one-way clutch gears are not transmitted to the resist roller.
  • Page 28 The hopping operation of the front feeder and the up/down operation of the pinch roller 2 are performed by a single pulse motor, as shown below. One-way clutch gear B Idle gear A Sensor position Up/down Hopping roller From front Pinch roller One-way clutch gear A Idle gear B...
  • Page 29 (a) First and second hopping rollers 1 When the front edge of the paper passes by the pickup roller, the pulse motor of the front feeder turns left (in the direction of “b” to drive the cam. The cam moves up the pinch roller 2.
  • Page 30 (b) Front feeder hopping 1 The pulse motor of the front feeder turns right (in the direction of “a” to drive the hopping roller. The paper is fed until the Entrance sensor 2 turns on. Although the one-way clutch gear B is also rotating, the pinch roller 2 does not drive the up/down cam by means of the one-way clutch.
  • Page 31 Up/down movement of the I/D unit and rotation of the EP drum The up/down movement of the I/D unit and the rotation of the EP drum are performed by a mechanism shown below. (See Figure 2.6-a) This mechanism is driven by a single pulse motor. When the pulse motor turns left (CCW), the up/down gear turns left (in the direction of “a”) and the up/down lever (see Figure 2.6-b) moves up (in the direction of “...
  • Page 32 I/D unit up/down actuator I/D unit Up/down lever Figure 2.6-b I/D unit Up/down lever Figure 2.6-c 41057601TH Rev.1...
  • Page 33 Lubrication and cleaning of fixing, ejecting, and heat rollers The fixing roller, the ejecting roller, and the heat roller are lu- Face-down stacker bricated and cleaned by a single pulse motor. When the heat roller pulse motor turns right (in the direction of “a”), the heat roller and the backup roller turn left (in the direction of Ejection roller...

  • Page 34: Sensors

    Sensors 2.5.1 Paper related sensors Ejection roller FF hopping roller Write sensor K drum Y drum M drum C drum Heat roller Pickup roller Pinch roller 2 Driving roller Exit sensor Form width sensor Driven rollers Pinch roller 1 Resist roller 1 Backup roller Resist roller 2 FF sensor 1...

  • Page 35: Other Sensors

    2.5.2 Other sensors Form end sensor This sensor checks whether the paper cassette is empty. FF form end sensor This sensor checks whether the front feeder has paper. FF home switch This microswitch checks whether the front feeder stage is in the up or down position. EP up/down sensor (one for each color Y, M, C, K) This sensor checks whether the I/D unit is in the up or down position.

  • Page 36: Correction Of Color Deviation

    Correction of Color Deviation OKIPAGE 8c is equipped with an array of I/D units which cannot be from generation of color deviations. This mechanically caused color deviation is corrected electronically as shown below. Color deviations to be corrected 1 Color deviation in the X axis (Positional error of the LED head) 2 Diagonal color deviation (Positional error of the LED head) 3 Color deviation in the Y axis (Positional errors of the I/D units and light receivers) Method of correction Print out the preset color chart, compare the printed color chart by...

  • Page 37: Form Jam Detection

    Form Jam Detection OKICOLOR 8/ OKIPAGE 8c Plus checks for a paper jam when the page printer is powered on and during printing. When finding a paper jam, OKICOLOR 8/ OKIPAGE 8c Plus immediately stops the printing process. To recover the printer, open the cover, find and remove the jammed paper, then close the cover.

  • Page 38: Toner Low Detection

    2.10 Toner Low Detection • 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 engagement of concave in the stirring gear. Concave Magnet Stirring Bar...

  • Page 39: Page Size Detection

    TONER FULL state TNRSNS t1 < 0.74 SEC (Y) t1 < 1.165 SEC (M, C, K) 1.965 SEC. TONER LOW state TNRSNS t1 > 0.74 SEC (Y) t1 > 1.165 SEC (M, C, K) 1.965 SEC. • When the toner low state is detected for 2 times consecutively, Toner Low is established. •...

  • Page 40: Power-On Processing

    2.12 Power-on Processing 2.12.1 Self-diagnostic test Initial test The following checks are automatically performed when the OKICOLOR 8 / OKIPAGE 8c Plus page printer is powered on: (a) ROM check (b) RAM check (c) EEPROM check (d) Flash ROM check ROM check (a) Checks ROM by comparing the sum of bits in the received data unit by the number of bits in the transferred data unit.

  • Page 41: Parts Replacement

    PARTS REPLACEMENT The section explains the procedures for replacement of parts, assemblies, and units in the field. Only the removal procedures are explained here. Reverse the procedure for the installation. Precautions for Parts Replacement Before starting parts replacement, remove the AC cable and interface cable. (a) Remove the AC cable in the following procedure: Turn off ("o") the power switch of the printer ii) Disconnect the AC inlet plug of the AC cable from the AC receptacle.
  • Page 42 [Service Tools] Table 3-1 shows the tools required for field replacement of printed circuit boards and units. Table 3-1 Service Tools Service Tools Q' ty Place of use Remarks No. 1-100 Philips 2~2.5 mm screws screwdriver No. 2-200 Philips 3~5 mm screws screwdriver, Magnetized No.

  • Page 43: Parts Layout

    Parts Layout Figure 3-1 41057601TH Rev.1...
  • Page 44 Figure 3-2 41057601TH Rev.1...
  • Page 45 Figure 3-3 41057601TH Rev.1...
  • Page 46 Figure 3-4 41057601TH Rev.1...

  • Page 47: How To Change Parts

    How to Change Parts This section explains how to change parts and assemblies appearing in the disassembly diagram below. 41057601TH Rev.1...

  • Page 48: Cover Assy Rear

    3.3.1 Cover Assy Rear Unscrew 2 screws 1 then lift the cover assy rear 2 a little bit, then remove the cover assy rear by releasing the lock of two claws. Figure 3.3.1 Cover Assy Rear 41057601TH Rev.1...

  • Page 49: Motor-Fan (80-25)

    3.3.2 Motor-Fan (80-25) Remove the cover assy rear. (See 3.3.1) Unscrew 2 screws 1. Detach the motor-fan 2 from the guide with its right side lifted then draw the motor-fan. Unplug the cable 3 then remove the motor-fan 2. Figure 3.3.2 Motor-Fan (80-25) 41057601TH Rev.1...

  • Page 50: Paper Eject Assy

    3.3.3 Paper Eject Assy The paper eject assy comprises the frame eject assy and the guide paper eject assy. Remove the cover assy rear. (See 3.3.1) Open the top cover. Unscrew 4 screws 1 then remove the frame eject assy 2. Remove the guide paper eject assy 3 by releasing the lock of one claw.

  • Page 51: Cover Assy Stacker, Guide Eject Fd Assy

    3.3.4 Cover Assy Stacker, Guide Eject FD Assy Remove the belt cassette assy and the heat unit assy. Remove the cover assy rear. (See 3.3.1) Detach the cable from the cable clamp 1 by releasing its lock. Unscrew 8 screws 2 then remove the cover assy stacker. Unscrew 4 screws 4 then remove the guide eject FD assy 5.

  • Page 52: Frame Assy Upper

    3.3.5 Frame Assy Upper Remove the cover assy rear. (See 3.3.1.) Remove the cover assy stacker. (See 3.3.4.) Remove the holder LED assy. (See 3.3.45.) Detach the cable from the cable clamp 1 by releasing its lock. Remove connections of 4 connector cables 2 and 4 cables 3. Unscrew 4 screws 4 then remove the PCB 5.

  • Page 53: Plate Support Assy

    3.3.6 Plate Support Assy The plate support assemblies are provided right and left. The method of those replacements is the same. Remove the heat unit assy. (See 3.3.40) Remove the cover assy rear. (See 3.3.1) Remove the cover assy stacker. (See 3.3.4) Remove the frame assy upper.

  • Page 54: Limiter 2Way (L), (R) / Plate Guide (L) , (R)

    3.3.7 Limiter 2way (L), (R) / Plate Guide (L) , (R) Remove the plate support assy (L) and (R). (See 3.3.6) Unscrew 2 screws 1 then remove the limiter 2way (L) 2 and the plate guide (L) 3. Unscrew 2 screws 4 then remove limiter 2way (R) 5 and the plate guide (R) 6. Figure 3.3.7 Limiter 2way (L), (R) / Plate Guide (L) , (R) 41057601TH Rev.1...

  • Page 55: Cover

    3.3.8 Cover Describes the method of removing the cover assy side (L)/(R), cover assy OP panel, cover front (L)/(R) and the cover rear (L). Remove the belt cassette assy and the heat unit assy. Remove the cover assy rear. (See 3.3.1) Remove the cover assy stacker.

  • Page 56: Pcb Assy : Pce

    3.3.9 PCB Assy : PCE Remove the belt cassette assy and the heat unit assy. Open the top cover. Unscrew 2 screws 1 to release the lock of the claw by lifting the cover assy side (R) 2 a little bit, then remove the cover assy side (R).

  • Page 57: Motor Fan (Cu)

    3.3.10 Motor Fan (CU) Open the top cover. Remove the cover assy side (R), frame side (L), cover assy OP panel and the cover front (R). (See 3.3.8) Unplug the cable 1 and unscrew 2 screws 2, 2 collars 4 and then remove the motor fan (CU) 3.

  • Page 58: Pxf Pcb/Px4 Pcb

    3.3.11 PXF PCB/PX4 PCB Since the PXF PCB and PX4 PCB are connected with each other via the connector, remove them at the same time. Remove the PCB assy : PCE. (See 3.3.9) Unscrew 5 screws 1 then remove the cover CU2. Unplug all the cables 5 connected to the PXF PCB 3 and PX4 PCB 4.

  • Page 59: Gear Heat Assy

    3.3.12 Gear Heat Assy Remove the cover assy side (R), cover assy OP panel, cover front (R) and the cover rear (L). (See 3.3.8) Remove the cover CU then unplug all the cables connected to the PXS PCB and unscrew 3 screws.

  • Page 60: Main Motor (A), (B) Assy

    3.3.13 Main Motor (A), (B) Assy Remove the PXF PCB and PX4 PCB. (See 3.3.11) Unscrew 4 screws 8 and remove 4 plate-Earth 9 and 4 lever Up/Dn 2 1. Unplug all the cables 2 connected and unscrew 4 screws 3, then remove the main motor (A) assy 4.

  • Page 61: Gear One-Way (Z30)

    3.3.14 Gear One-way (Z30) Four gear one-ways (Z30) are provided but the method of those replacements is the same. Do not disassemble the gear one-ways (Z30) because they are assemblies requires adjustment. Remove the PCB assy : PCM. (See 3.3.9) Remove the cover CU.

  • Page 62: Motor Assy Bt

    3.3.15 Motor Assy BT Remove the main motor (B) assy. (See 3.3.13) Unplug 2 cables 1 connected and unscrew 2 screws 2, then remove the motor assy BT 3. Figure 3.3.15 Motor Assy BT 41057601TH Rev.1...

  • Page 63: Power Supply Unit, Holder Inlet, Sheet Insulation

    3.3.16 Power Supply Unit, Holder Inlet, Sheet Insulation Remove the motor-fan (80-25). (See 3.3.2) Remove the frame side (L), the cover assy side (R) and the cover rear (L). (See 3.3.8) Unplug the cable 1. Remove the holder inlet 3 by unscrewing 2 screws 2, then remove the power switch 4 and unplug the AC socket 5.

  • Page 64: Sensor Assy Box Toner

    3.3.17 Sensor Assy Box Toner Remove the power supply unit. (See 3.3.16) Unscrew the screw 1 then remove the sensor assy box toner 2 together with the bracket Unscrew the screw 4 then remove the sensor assy box toner 2. Figure 3.3.17 Sensor Assy Box Toner 41057601TH Rev.1...

  • Page 65: Square-Shaped Connector

    3.3.18 Square-shaped Connector Remove the heat unit assy. Draw the power supply unit. (See 3.3.16) (Do not remove the power switch and AC socket from the holder inlet.) Unplug the cable 1. Remove cable 2, screw 5 bracket 6 and cable 7 in order and then take off SW from bracket 6 to pull off square-shaped connector 4.

  • Page 66: Hopping Motor

    3.3.19 Hopping Motor Remove the cover assy side (R), cover assy OP panel and the cover front (R). (See 3.3.8) Unscrew 2 screws 1 and unplug the cable 2, then remove the bracket hopping motor 3. (Be careful not to lose the gears 5, 6 and 7 which slip off at this time.) Unscrew 2 screws 8 then remove the hopping motor 3.

  • Page 67: Gear One-Way

    3.3.20 Gear One-way Remove the bracket hopping motor. (See 3.3.19) Remove the spacer 4 first and release the locks with the shaft by spreading the claws of the gear one-way 1, 2 and 3, then remove the gear one-ways. Claw Figure 3.3.20 Gear One-way 41057601TH Rev.1...

  • Page 68: Feeder Unit Front

    3.3.21 Feeder Unit Front Remove the cover assy side (R), cover assy OP panel, cover front (R) and the cover front (L). (See 3.3.8.) Remove the cover CU. (See 3.3.11) Unscrew the screw 8 and remove the cable 9. Unplug the cable 1 and unscrew the screw 2, then remove the bracket FF shaft 3. Remove 2 E-rings 4 then remove the feeder unit front 5.

  • Page 69: Manual Feed Hopper Assy

    3.3.22 Manual Feed Hopper Assy Open the manual feed hopper assy. Release the engagement between the holder and the link then remove the manual feed hopper assy. (Be careful not to damage the holder.) Link Holder Figure 3.3.22 Manual Feed Hopper Assy 41057601TH Rev.1...

  • Page 70: Guide Paper Input Assy

    3.3.23 Guide Paper Input Assy Remove the cover assy OP panel, cover front (R) and the cover front (L). (See 3.3.8) Remove the feeder unit front. (See 3.3.21) Unscrew 4 screws 1 then draw out the guide paper input assy 2 from the left side by rotating its upper part .

  • Page 71: Two Lever Input Sensors, Lever 2Nd Feed Sensor

    3.3.24 Two Lever Input Sensors, Lever 2nd Feed Sensor Remove the guide paper input assy. (See 3.3.23) Release the engagement with the guide by pressing 2 lever input sensors 2 in the arrow direction, then remove them. Release the engagement with the guide by pressing the lever 2nd feed sensor 2 in the arrow direction, then remove the sensor.

  • Page 72: Roller Registration, Roller Assy Hopping

    3.3.25 Roller Registration, Roller Assy Hopping Remove the guide paper input assy. (See 3.3.23) Remove the bracket hopping motor. (See 3.3.19) Remove the gear one-way. (See 3.3.20) Remove the holder gear toner assy. (See 3.3.30) [Removal of the roller registration] Remove the gear 1 and 2 bushes 2 and 2 bearings 3, then 2 roller registrations 4.

  • Page 73: Roller Hopping

    3.3.26 Roller Hopping Remove the roller assy hopping. (See 3.3.25) and remove the 2 sub-roller hopping guide 3 . (Be careful not to lose the knock-pin which slips off together when removing the roller assy hopping.) Detach the roller hopping 2 from the shaft 1. Knock-pin Claw Figure 3.3.26 Roller Hopping...

  • Page 74: Pxu Pcb/Pxm Pcb, Lever Resist Sensor

    3.3.27 PXU PCB/PXM PCB, Lever Resist Sensor Since the PXU PCB and PXM PCB are connected with each other via the cable, remove them at the same time. Remove the guide paper input assy. (See 3.3.23) Unscrew 4 screws 1 and unplug the cable 2, then remove the PXU PCB 3 and PXM PCB 4 at the same time.

  • Page 75: Paper End Lever

    3.3.28 Paper End Lever Remove the guide paper input assy. (See 3.3.23) Remove the paper end lever 1 by releasing the engagement with the guide. Figure 3.3.28 Paper End Lever 41057601TH Rev.1...

  • Page 76: Pco Pcb (Operator Panel)

    3.3.29 PCO PCB (Operator Panel) Remove the cover assy side (R) and the cover assy OP panel. (See 3.3.8) Unscrew 4 screws 1 and unplug the operator panel cable 2. Remove the PCO PCB 3 by releasing 6 claws. (Be careful not to drop the LCD (Liquid Crystal Display) 4 and 5 which are detached together.) Claw (six) Figure 3.3.29 PCO PCB (Operator Panel)

  • Page 77: Holder Gear Toner Assy

    3.3.30 Holder Gear Toner Assy Remove the cover assy side (R), cover assy OP panel, cover front (R) and the cover rear (L). (See 3.3.8) Unplug the cable 1 and unscrew the screw 2, then remove the holder gear toner assy 3. Figure 3.3.30 Holder Gear Toner Assy 41057601TH Rev.1...

  • Page 78: Plate Latch Lever (Fd), Spring Latch Lever (Fd)

    3.3.31 Plate Latch Lever (FD), Spring Latch Lever (FD) Remove the belt cassette assy. Remove the cover assy side (R), cover assy OP panel, cover front (R) and the cover front (L). (See 3.3.8) Open the cover CU. (See 3.3.11) Unplug the cable 1.

  • Page 79: Belt Cassette Assy

    3.3.32 Belt Cassette Assy Open the Top cover. Release the lock by drawing the cover knob then open the cover assy side (L). Turn the waste toner box (box toner assy) 1 to the left by pressing it down, then remove it. Draw out the belt cassette assy 2 by lifting it a little bit with its handle.

  • Page 80: High Voltage Power Supply Unit, Bracket Hv (Bt) Assy

    3.3.33 High Voltage Power Supply Unit, Bracket HV (BT) Assy Remove the belt cassette assy. (See 3.3.32) Unscrew 2 screws 1 with the stacker cover opened, then remove the plate HV 2. Unplug the cable 3 and 7 codes 4. Unscrew 2 screws 5 then remove the high voltage power supply unit 6.

  • Page 81: Eraser Bracket Assy, Eraser Bracket (Kcm) Assy

    3.3.34 Eraser Bracket Assy, Eraser Bracket (KCM) Assy Remove the belt cassette assy. (See 3.3.32.) Open the stacker cover. Remove four screws 5 and then remove the Plate Blind 6. [Removing the eraser bracket assy] Remove the screw 1 and the connector 2. Release the screw 7 and then remove the eraser bracket assy 3 [Removing the eraser bracket (KCM) assy] Remove the screw 1 and the connector 2.

  • Page 82: Shaft Link

    3.3.35 Shaft Link Remove the eraser bracket assy. (See 3.3.34.) Remove the gear one-way (Z30). (See 3.3.14.) Remove the E-ring 3 by sliding the sensor assy T (KCM) 1 and bracket sensor T (KCM) 2 together in the arrow (A) direction. When removing shaft (K) assy, remove 3 screws then remove the Heat Sink-801 B.

  • Page 83: Contact (Bl-R) Assy, Contact (Cl-R) Assy

    3.3.36 Contact (BL-R) Assy, Contact (CL-R) Assy Remove the gear one-way (Z30). (See 3.3.14) Remove the motor assy BT. (See 3.3.15) Remove the high voltage power supply unit. (See 3.3.33) Remove the shaft link. (See 3.3.35) [Removal of the contact (BL-R) assy] Unscrew 2 screws 1 and unplug the cable 2, then remove the contact (BL-R) assy 3.

  • Page 84: Contact (Bl-L) Assy, Contact (Cl-L) Assy

    3.3.37 Contact (BL-L) Assy, Contact (CL-L) Assy Remove the shaft link. (See 3.3.35) [Removal of the contact (BL-L) assy] Unscrew 2 screws 1 then remove the contact (BL-L) assy 2. [Removal of the contact (CL-L) assy] Unscrew 2 screws 3 then remove the contact (CL-L) assy 4. Contact (CL-L) Assy Contact (BL-L) Assy Figure 3.3.37 Contact (BL-L) Assy, Contact (CL-L) Assy...

  • Page 85: Contact Sb Assy

    3.3.38 Contact SB Assy Remove the contact (BL-L) assy and contact (CL-L) assy. (See 3.3.37) Unscrew 3 screws 1 then remove the plate blink 2. Unplug 7 codes 3. Unscrew 3 screws 4 then remove the contact SB assy 5. Figure 3.3.38 Contact SB Assy 41057601TH Rev.1...

  • Page 86: Pxc Pcb

    3.3.39 PXC PCB Remove the contact (BL-R) assy and contact (CL-R) assy. (See 3.3.36) Remove the contact (BL-L) assy and contact (CL-L) assy. (See 3.3.37) Remove the hopping motor. (See 3.3.19) Remove the motor assy BT. (See 3.3.15) Remove the gear heat assy. (See 3.3.12) Remove the roller assy hopping.

  • Page 87: Heat Unit Assy

    3.3.40 Heat Unit Assy Open the stacker cover. Release the lock by turning down the lever lock heat guides (blue) on both sides, then lift the heat unit assy 1 and remove it. Lever Lock Heat Guide Figure 3.3.40 Heat Unit Assy 41057601TH Rev.1...

  • Page 88: Oil Roller Assy

    3.3.41 Oil Roller Assy Remove the heat unit assy. (See 3.3.40) Release the lock by turning down the lever in the arrow (A) direction, then slide the oil roller assy 1 with its right side lifted and remove it. Lever Figure 3.3.41 Oil Roller Assy 41057601TH Rev.1...

  • Page 89: Lever Lock Heat (L)/(R), Guide Side Heat, Spring Lock

    3.3.42 Lever Lock Heat (L)/(R), Guide Side Heat, Spring Lock Removing methods for right side and left side of each part are the same. Here describes the method for right side. Remove the heat unit assy. (See 3.3.40) Unscrew 2 screws 1 then remove the guide side heat 2. Remove the E-ring 3 then lever lock heat (R) 4.

  • Page 90: Pxl Pcb

    3.3.43 PXL PCB Remove the paper eject assy. (See 3.3.3) Remove the belt cassette assy. (See 3.3.32) Remove the heat unit assy. (See 3.3.40) Unplug the cable 1 and the screw 2, then remove PXL PCB 3. Release the lock of the claw then remove the sensor cover 4. Figure 3.3.43 PXL PCB 41057601TH Rev.1...

  • Page 91: Heat Unit Guide Assy

    3.3.44 Heat Unit Guide Assy Remove the cover assy rear. (See 3.3.1) Remove the paper eject assy. (See 3.3.3) Remove the gear heat assy. (See 3.3.12) Remove the belt cassette assy. (See 3.3.32) Open the stacker cover and remove the heat unit assy. (See 3.3.40) Unscrew 4 screws 1 then remove the heat unit guide assy 2.

  • Page 92: Holder Led Assy, Led Head

    3.3.45 Holder LED Assy, LED Head Remove the belt cassette assy and the heat unit assy. Unplug the cable 1. Remove the LED head 3 by spreading the holder LED assy 2 a little bit. (Be careful not to lose the spring 4 which slips off together.) Remove the holder LED assy 2 by spreading the A-part of the guide holder a little bit with a flat blade screwdriver.

  • Page 93: Adjustments

    ADJUSTMENTS Adjustments are carried out by key operations on the operator panel, by software operation panel, and by EEPROM of PU (PX4-PCB) setting. This page printer supports three maintenance modes. Select and set a maintenance mode fit for the adjustment. Maintenance Modes and Their Functions 4.1.1 User maintenance mode...
  • Page 94 User maintenance mode memu system Category Selection DF After pressing After completing the process ENTER MENU MENU MENU RESET RESETTING RESET HEX DUMP ON-LINE HEX DUMP RESOURCE SAVE AUTO 400KB 900KB 1.6MB 2.5MB • • • 19.6MB 22.5MB RECEIVE BUFFER AUTO 100KB 512KB...

  • Page 95: System Maintenance Mode

    4.1.2 System maintenance mode To set the system maintenance mode, turn on the power switch of the page printer while pressing on the Recover key. Note: The system maintenance mode is hidden and not available to the user. To exit this mode, press the ONLINE switch except during rolling ASCII continuous printing. Then the RUN mode is set.
  • Page 96 System Maintenance mode menu system Category Selection DF After pressing After completing the process ENTER PAGE CNT nnnnnn PAGE PRT DISABLE ENABLE CONT PRT CONT PRT CONT PRT PRINTING CANCELLED (ON LINE SW Press) EEPROM EEPROM EEPROM RESET RESETTING RESET HSPERR RECOVER SETTING...

  • Page 97: Engine Maintenance Mode

    4.1.3 Engine maintenance mode To set the engine maintenance mode, turn on the power switch of the page printer while pressing on the ENTER and FORM FEED keys. The engine maintenance mode is set and “ENG MNT” is displayed on-screen. Note: The engine maintenance mode is hidden and not available to the user.
  • Page 98 Engine maintenance mode memu system (1/2) Category Selection DF After pressing After completing the process ENTER YELLOW LED HEAD No.1 SETTING EEPROM No.2 No.16 No.17 No.32 MAGENTA LED HEAD No.1 SETTING EEPROM No.2 No.16 No.17 No.32 CYAN LED HEAD No.1 SETTING EEPROM No.2 No.16...
  • Page 99 Engine maintenance mode menu system (2/2) Category Selection DF After pressing After completing the process ENTER YELLOW DRMCNT nnnn Yellow DRMCNT T nnnnnnn MAGENTA DRMCNT nnnn Magenta DRMCNT T nnnnnnn CYAN DRMCNT nnnn Cyan DRMCNT T nnnnnnn BLACK DRMCNT nnnn Black DRMCNT T nnnnnnn FUSER COUNT...

  • Page 100: Adjustments After Parts Replacement

    4.2.1 Confirm the LED head driving time Note: The OKICOLOR 8/ OKIPAGE 8c Plus, if a new LED HEAD is placed, reads the contents of EEPROM within the LED HEAD, automatically re-setting the drive time. Therefore, the re-setting of drive time is unnecessary, but a confirmation to the drive time re-set is necessary.
  • Page 101 Find a parameter value corresponding to the illumination level of the LED head in the table below. Illumination Level - LED Driving Time table Parameter value Illumination level Parameter value Illumination level (displayed on LCD) of LED head (displayed on LCD) of LED head 53 - 57 145 - 154...

  • Page 102: Color Deviation Correction

    4.2.2 Color deviation correction After replacing a part of the page printer, be sure to check whether colors are matched. If not, correct the deviations. Method of correcting color deviations (a) Enter Menu 2 mode, select the Color Deviation Correction mode (COLOR REG ADJUST EXECUTE), and print out a color chart (PRINT PATTERN).
  • Page 103 MENU PRINT PATTERN PRINT PATTERN COLOR REG ADJUST COLOR REG ADJUST – MENU MENU ADJUST ADJUST ADJUST ADJUST ADJUST MENU ADJUST PRINT EXCUTE ADJUST ENTER Press ENTER Key to determine PRINT PATTERN COLOR REG ADJUST PRINT PATTERN EXIT ENTER MENU COLOR BALANCE MENU : Press MENU Key...
  • Page 104 olor check pattern 104/ 41057601TH Rev.1...

  • Page 105: Periodic Maintenance

    PERIODIC MAINTENANCE Periodically Replaced Parts We recomend user that as specified, the parts shall be replaced periodically. (If not replaced, the printout quality may not be assured and in extreme cases, the page printer may be in trouble.) Parts Name Display of warning condition Recommend condition for replacement Adjustment after replacement...

  • Page 106: Troubleshooting Procedures

    TROUBLESHOOTING PROCEDURES Troubleshooting Tips Check the basic check points covered in the user’s manual. Gather as much information on the problem from the customer as possible. Perform inspections in conditions close to those in which the problem had occurred. Points to Check before Correcting Image Problems Is the printer being run in proper ambient conditions? Have the supplies (toner) and the routine replacement part (image drum cartridge) been replaced properly?

  • Page 107: Preparation For Troubleshooting

    Preparation for Troubleshooting Operator panel display The failure status of this printer is displayed on the liquid crystal display (LCD) in the operator panel. Take proper corrective action as directed by messages that are displayed on the LCD. Troubleshooting Flow If troubles should develop in this printer, troubleshoot in the following procedure flow: Troubles Troubles...
  • Page 108 Category LCD Status Message READY ATTENTION Trouble or Status Remedy Daily status TNR SNS ******* Undefined Indicates that Toner sensor is abnormal when page This massage is cleared when the counter is above thirty. (The LED of the color lights) drum is properly positioned or sensor lever which is exchanged correspond to the LED color lights.
  • Page 109 Category LCD Status Message READY ATTENTION Trouble or Status Remedy Paper Jam PAPER FEED JAM Undefined Undefined Undefined Undefined Blink Indicates that a paper coming out of the tray jammed Check the size of paper in the tray on the paper traveling printer. or whether two or more paper Error CHECK tttttt...
  • Page 110 Category LCD Status Message READY ATTENTION Trouble or Status Remedy Controller ERROR Undefined Undefined Undefined Undefined Blink Code Details of error Remedy (nn) Error Indicates that an error was found Turn on the power of the page printer again. in the program ROM by the pro- If this error still occurs, replace the program gram ROM check.
  • Page 111 Category LCD Status Message READY ATTENTION Trouble or Status Remedy Controller ERROR Blink Blink Blink Blink Blink Code Details of error Remedy (nn) Error This massage is cleared when the drum is prop- Indicates that Toner sensor is erly positioned or sensor lever which is ex- abnormal when page counter is changed correspond to the LED color lights.
  • Page 112 Category LCD Status Message READY ATTENTION Trouble or Status Remedy Controller ERROR Undefined Undefined Undefined Undefined Blink Code Details of error Remedy (nn) Error Humidity sensor error Make sure that the relative humidity stays 0% < h < 95%. (the subsequent contents are the same as those of [DA]) Waste-toner sensor error Re-mount the waste toner box and re-power...
  • Page 113 Category LCD Status Message READY ATTENTION Trouble or Status Remedy Controller ERROR Undefined Undefined Undefined Undefined Blink Code Details of error Remedy (nn) Error Engine firmware lost control Turn on the power of the page printer again. If this error still occurs, replace the program ROM of the engine board (PX4 PCB) or the engine board.
  • Page 114 Category LCD Status Message READY ATTENTION Trouble or Status Remedy Controller ERROR Undefined Undefined Undefined Undefined Blink Code Details of error Remedy (nn) Error Monitor error (Argument error) Turn on the power of the page printer again. If this error still occurs, replace the program ROM of the main board (PCE PCB) or the main board.
  • Page 115 Category LCD Status Message READY ATTENTION Trouble or Status Remedy Controller ERROR Undefined Undefined Undefined Undefined Blink Indicates that the controller error has occurred. Turn on the power of the page printer again. The error will be reset. Error CONTROLLER nn-aaaaaaaa Code Details of error...

  • Page 116: Lcd Message Troubleshooting

    6.5.2 LCD message troubleshooting If a trouble cannot be repaired according to the LCD message trouble list, troubleshoot according to the troubleshooting chart. Trouble Flowchart Number The printer does not work normally after being turned on. JAM Error Paper Input Jam (1st Tray) Paper Input Jam (Front Feeder) Paper Feed Jam Paper Exit Jam2-4...
  • Page 117 The printer does not work normally after turned on the power of rhe printer. • Turn off the power of the printer, wait a few seconds, then turn on power again. • displayed on the LCD (for about 1 second)? •...
  • Page 118 2-1 Paper input jam (1st tray) • Does the paper reach the FF sensor 1 or 2? • Yes Remove the paper jam. Do the sensor levers (FF sensor 1, FF sensor 2) work right? • Replace the defective sensor lever (FF sensor 1, FF sensor 2). •...
  • Page 119 2-2 Paper input jam (Front feeder) • Is the paper jam immediately occur after the page printer is powered on? • Yes Is the paper jam occur FF sensor 2? Yes Remove the paper jam. • No Do the sensor levers (FF sensor 2) work right? Replace the defective sensor lever (FF sensor 2 ).
  • Page 120 2-3 Paper feed jam • Is the paper jam immediately occur after the page printer is powered on? • Yes Is there jam med paper at the Write sensor? Yes Remove the paper jam. • No Does the lever of the Write sensor work right? Replace the lever of Write sensor.
  • Page 121 • Is the resistance of belt motor about 7.1 ohms? Replace the belt motor. • Yes Check the gear engagement or replace the engine board. • Yes Check the gear engagement or replace the belt cassette Assy. • Does the leading edge of a paper pass by the Exit sensor? •...
  • Page 122 2-4 Paper Exit Jam • Is the paper jam immediately occur after the page printer is powered on? • Yes Is the jammed paper at the Exit sensor? Yes Remove the paper . • No Does the sensor lever work correctly? Replace the defective sensor lever.
  • Page 123 Paper Size Error • Is the paper which being used under the specification? Use paper which is under the specification. Yes Is the paper jam med at the Lever regist sensor or the Write sensor? Yes Remove the paper. • Does the sensor levers (Lever regist sensor ) work correctly? Replace the defective sensor lever (Lever regist sensor).
  • Page 124 Image Drum Unit (IDU) Up/Down Error • Turn off power to the page printer, wait a few seconds, then turn on power again. • Each image drum unit (IDU) motor rotating for printout? • No Is the value of IDU motor resistance about 7.1 ohms? Replace the defective IDU motor.
  • Page 125 Fusing Unit Error • Is the Fusing unit trouble occur immediately after the page printer is powered on? • Yes Is Heat roller thermistor open or shorted? (See Figure 6.1.) (Normal registance and temperature are about between 90 ohms the 700 ohms at room temperature between 0°C the 43°C) •...
  • Page 126 Fan Motor Error • Is the Low-voltage power supply fan rotating after the page printer is powered on? • No Is +32V being supplied on the FU2 of the engine board (PX4 PCB)? • Is +32V being supplied on the power connector of the engine board (PX4 PCB)? 32V: Pin 7, 8, 9, 10 Check the connection of the cable or replace the low-voltage power supply.
  • Page 127 Cannot Receive Data from Parallel Interface. • Is “PARALLEL I/F” (in menu 1) set to “ENABLE”? Set the “PARALLEL I/F” (in menu 1) to “ENABLE.” • Is Parallel interface of the host computer set to “Bidirectional Communication”? Yes Set the “Bidirectional Communication” of “Parallel Interface” (in menu 2) to “ENABLE.” •...
  • Page 128 Cannot Receive Data from HSP Interface. • Is HSP I/F board connected correctly to the main board (PCE PCB)? Connect the HSP I/F board correctly to the main board (PCE PCB). • Is there Any bent or broken pin on the HSP I/F board? Yes Replace the HSP I/F board.

  • Page 129: Image Troubleshooting

    6.5.3 Image troubleshooting When the printout images are not satisfactory as shown below, take the troubleshooting steps given in this paragraph. Printout problem Reference flowchart No. Light or blurred images on the whole printout area (Figure 6.2-A) Dirty stained ground (Figure 6.2-B) No printout data on blank paper (Figure 6.2-C) Black stripe or lines in the vertical direction (Figure 6.2-D) White stripe or lines in the vertical direction (Figure 6.2-F)
  • Page 130 Light or blurred images on the whole printout area • Is toner low? (“TONER LOW” indicator on?) Yes Supply toner. • Specified paper? Use the specified paper. • Is the lens of the LED head dirty? Yes Clean the LED head lens. •...
  • Page 131 • Check the connection of the cables, replace the high-voltage power supply, or belt cassette assembly. Recovered? Yes End • Is Each terminal of each image drum unit connected correctly to the contact assembly? (See Figure 6.2.) Make the terminals be in contact with the contact assembly correctly. •...
  • Page 132 Dirty stained ground (Figure 6.2-B) • Each image drum exposed to external lights for a long time? Yes Replace the image drum unit or put the image drum unit in the printer and close the upper cover and wait for 15min. Note: After replacing the image drum unit, be sure to reset its counter.
  • Page 133 Check the connection of the cables or replace the low-voltage power supply. • Is +32V on pin 2 of the HVOLT connector of the engine board (PX4 PCB) being supplied? Replace the engine board. • Check the connection of the cables or replace the high-voltage power supply or belt cassette assembly.
  • Page 134 Void print out • Is each LED head assembly connected to the junction board (PD6 PCB) correctly? Check whether or not the connection of the cables or connect the LED assembly to the junction board (PD6 PCB) correctly. • Is +3.3V on the following pins of the HEADPOW connector of the junction board (PD6 PCB) being supplied? +3.3V: Pin 1, 2, 3, 4, 5, 6 •...
  • Page 135 • Is each terminal of each image drum unit connected to the contact assembly correctly? (See Figure 6.2.) Make the terminals be in contact with the contact assembly correctly. • Replace the the image drum unit. Notes: 1. When replacing the engine board (PX4 PCB), demount the EEPROM chip from the old engine board and remount it on the new one.
  • Page 136 Black stripe or lines in the vertical direction • Is each LED head assembly connected to the junction board (PD6 PCB) correctly? Connect the LED head assembly to the junction board correctly. • Check the connection of the cables or replace the LED head assembly. Is the problem recovered? Yes End •...
  • Page 137 White stripe or lines in the vertical direction • Is each LED head lens contaminated? Yes Clean the LED head lens. • Is each LED head assembly connected to the junction board (PD6 PCB) correctly? Connect the LED head assembly to the junction board (PD6 PCB) correctly. •...
  • Page 138 Poor Fusing (Image are blurred or peeled off when touched with finger.) • Is the paper under specification being used? Use the paper under the specification. • Is contacts of the fusing unit assembly connected correctly? Connect the contacts correctly. •...
  • Page 139 Cyclical printout defects (Figure 6.2-E) Possibly defective part Repairing 94.2 mm Image Drum Replace the image drum unit. 44.0 mm Developing Rooler Replace the image drum unit. 28.3 mm Toner Supply Rooler Replace the image drum unit. 28.3 mm Charging Roller Replace the image drum unit.
  • Page 140 Missing characters or synthesization colors • Is each LED head lens contaminated? Yes Clean the lens of LED head. • Is each LED head assembly connected to the junction board (PD6 PCB) correctly? Check the connection of the cables (between each LED head and the junction board) or connect the LED head cables to the junction board correctly.
  • Page 141 Make the terminals be in contact with the contact assembly correctly. • Replace the the image drum unit. Notes: 1. When replacing the engine board (PX4 PCB), demount the EEPROM chip from the old engine board and remount it on the new one. 2.
  • Page 142 Poor synthesization Colors • Correct color deviations of each LED head by “COLOR REG ADJUST EXECUTE.” Is the problem recoverd? Yes End • Are there any gear broken of the unit (Image drum unit gear assembly, front feeder assembly, belt unit assembly or belt motor assembly, etc.)? Yes Replace the broken gear assembly.
  • Page 143 Printout colors different from original colors • Is each LED head lens contaminated? Yes Clean the LED head lens. • Is each LED head assembly connected to the junction board (PD6 PCB) correctly? Check the connection of the cables (between each LED head and the junction board) or connect the LED head cables to the junction board correctly.
  • Page 144 Make the terminals be in contact with the contact assembly correctly. • Replace the the image drum unit. Notes: 1. When replacing the engine board (PX4 PCB), demount the EEPROM chip from the old engine board and remount it on the new one. 2.
  • Page 145 Figure 6.3 145/ 41057601TH Rev.1...

  • Page 146: Wiring Diagram

    Unit Circuit Diagram Illustration Resistance White White Between pins 1 and 2: 7.1Ω Belt motor Between pins 3 and 4: 7.1Ω White White Yellow Yellow Between pins 1 and 2: 7.1Ω YIDU motor Between pins 3 and 4: 7.1Ω Yellow Yellow Between pins 1 and 2: 7.1Ω...
  • Page 147 Unit Circuit Diagram Illustration Resistance Blue Blue Between pins 1 and 2: 7.1Ω CIDU motor Between pins 3 and 4: 7.1Ω Blue Blue Black Black Between pins 1 and 2: 7.1Ω BIDU motor Between pins 3 and 4: 7.1Ω Black Black Orange Orange...
  • Page 148 Unit Circuit Diagram Illustration Resistance Brown Brown Between pins 1 and 2: 7.1Ω Heater motor Between pins 3 and 4: 7.1Ω Brown Brown White White Between pins 1 and 2: 7.1Ω FF motor Between pins 3 and 4: 7.1Ω White White...
  • Page 149 Unit Circuit Diagram Illustration Resistance +38 V White Fan 1 (To: Low Power FANALM-N supply) Black +38 V White Fan 2 FANALM-N (To: PX4-PCB) Black Thermostat Fusing unit Heater Lower side Between pins c and d: 205kΩ (at 25°C) Between pins e and f: 205kΩ (at 25°C) Fusing Unit Thermistor Between pins a and b: 2.3Ω...

  • Page 150: Program/Font Rom Location

    Program/Font ROM Location PCE-PCB PANEL MUPIS CENT 150/ 41057601TH Rev.1...
  • Page 151 PX4-PCB PXFIF FAN1 THERM RSENS POWER FAN2 151/ 41057601TH Rev.1...
  • Page 152 Power-Supply PCB DB-Y DB-M DB-C DB-B PCO PCB 152/ 41057601TH Rev.1...
  • Page 153 PXF PCB FSENS JODEN PXFIF 153/ 41057601TH Rev.1...

  • Page 154: Parts List

    Parts List Fig.8-1 154/ 41057601TH Rev.1...
  • Page 155 Table.8-1 Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 2000 40315201 Cover_Assy_Rear 40098401 Cover_Rear 40187501 Stacker_Faceup 40187601 Support_Stacker 40314801 Cover_Assy_Stacker 40315001 Cover_Assy_Side (R) Cover_Side (R) Frame_Side (R) 40098301 Cover_Front (R) 40314905 Cover_Assy_OP_Panel ODA(120V) 40314906 Cover_Assy_OP_Panel OEL/INT(230V) 40492603 Cover_Sub_Assy_OP_Panel OEL/INT 40492604 Cover_Sub_Assy_OP_Panel 40098201 Cover_Front (L)
  • Page 157 Table.8-2 Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 2000 40255201 Motor_Fan(80-25) 40303501 Frame_Eject_Assy 40303401 Guide_Paper_Eject_Assy 40410701 Frame_Upper_Assy See Fig.8-8 40018901 Power_Unit_ACDC_Switching ODA(120V) 40019001 Power_Unit_ACDC_Switching OEL/ODA(230V) 40311201 FDR_Unit__Front 40193501 Plate_FF_Link 40193601 Bracket_FF_Link 40303301 Guide_Paper_Input_Assy 40309801 Holder_Gear_Toner_Assy 40490801 Belt_Unit Replacement Kit (ODA) 40490802 Belt_Unit Replacement Kit (OEL/INT)
  • Page 158 Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 2000 41070201 ID_Unit_C6C_ODAEPCFGI-BK Consumable: ODA(120V) 41070202 ID_Unit_C6C_ODAEPCFGI-YM Consumable: ODA(120V) 41070203 ID_Unit_C6C_ODAEPCFGI-MM Consumable: ODA(120V) 41070204 ID_Unit_C6C_ODAEPCFGI-CM Consumable: ODA(120V) 41070205 ID_Unit_C6C_OELEPCFGI-BK Consumable: OEL(230V) 41070206 ID_Unit_C6C_OELEPCFGI-YM Consumable: OEL(230V) 41070207 ID_Unit_C6C_OELEPCFGI-MM Consumable: OEL(230V) 41070208 ID_Unit_C6C_OELEPCFGI-CM Consumable: OEL(230V) 40191201 Sheet_Insuration PSW2W3-30C...
  • Page 159 Fig.8-3 159/ 41057601TH Rev.1...
  • Page 160 Table.8-3 Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 2000 40175701 Plate_Base 40096401 Guide_Belt(F) 40135301 Photo_Interrupter 4PP4076-5154P001 Lever_Paper_End 40450401 Sensor_Assy_Box_Toner 40171401 Frame_Side(L) 40171301 Frame_Side(R) 40308801 Contact_SB_Assy 40290201 Plate_Blind 40163401 Guide_Side_Heatunit 40163701 Spring_Lock(L) 40835001 Spring_Lock_Heat 40163501 Lever_Lock_Heatunit(L) 40163601 Lever_Lock_Heatunit(R) 40383701 Limiter-2Way(L) 40383801 Limiter-2Way(R) 40335001...
  • Page 161 Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 2000 4PB4043-4718P001 Screw 40162101 Guide_Assy_Heat_Unit 40175101 Stay_EP 40449401 Guide_Assy_Heat 40449701 Hopping_Roller_Boss_Assy 40097301 Guide_Paper_Input_A 40144301 Lever_Input_Sensor 40144401 Lever_2ndFeed_Sensor 40189601 Shaft_Hoppingroller(1st) 40450201 Bracket_Switch 40408601 Holder_Switch 40264401 Spring_Eject_Heat NK3-18-SUS Knock_Pinn 40447201 CONN_Cord_Wire 40388401 Bracket_Switch(Side) 40446501 InterLock_SW_Cable_Assy 40162201 Cover_Sensor...
  • Page 162 Fig.8-4 162/ 41057601TH Rev.1...
  • Page 163 Table.8-4 Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 2000 40324501 Cotact_(BL_L)Assy Includes Item2, 3 40278101 Plate_Earth(LK) 4PP4076-5308P001 Bearing 40324401 Contact_(CL_L)Assy Includes Item2, 3 40324601 Contact_BKT(BL_R)Assy Includes Item6 40135301 Photo_Interrupter 40309001 Contact_BKT(CL_R)Assy Includes Item6 40308501 Eraser_BKT_Assy 40324301 Eraser_BKT(KCM)_Assy 40167901 Shaft_Link 40132301 Lever_Link(R) 40132401...
  • Page 165 Table.8-5 Reccomended Q'ty Q'ty/U Parts No. Name Remarks 1000 2000 40310001 Gear_Heat_Assy 40392301 Motor_Assy_Belt 40309101 Main_Motor(A)_Assy 40309201 Main_Motor(B)_Assy 40208101 Gear_Oneway(Z30) 40664401 Lever_Up/ Dn2(YMC) 40175001 Bracket_Hopping_Motor 40143401 Gear_Idle(92) 40143501 Gear_Feed(118/ 17) 40164401 Gear_Oneway(Z48/ 74) 40124101 Motor_Pulse(ID) 40634106 Board-PX4 EEPROM is excluded 40437201 Board-PXF 40233901...
  • Page 166 Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 2000 40450001 Belt_Motor_Mech_Assy 40135301 Photo_Interrupter 40448901 Gear_Heat_Mech_Assy 40664501 Lever_Up/ Dn2(K) 40583901 Plate_Earth(LKR) 40704901 Plate_Shield(CU) (40447201) CONN_Cord_Wire (12) Designated in Fig.8-3 8164303M0000 E2ROM1 816A2323M0000 NM93C66N-NW 41088101 PROM_Control 41088201 PROM_Control 41088301 PROM_Control 41088401 PROM_Control 166/ 41057601TH Rev.1...
  • Page 167 Fig.8-6 167/ 41057601TH Rev.1...
  • Page 168 Table.8-6 Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 2000 40187901 Frame_Upper 40449101 Holder_LED_Assy 40187801 Guide_Holder 40829701 Spring_Head 40197705 Spring_EP 40536001 Board_PD6 40394201 Plate_Oil_Sensor 40171702 AMP2P_MSW 40408601 Holder_SW 40449301 Plate_Support_(L)Assy 40197401 Torsion_Spring(A) 40449201 Plate_Support_(R)Assy 40218301 Torsion_Spring(B) LP-6665-1 Flat_Cable_Clip 2381005P0001 HCUJ(1.25)-14F-140-10S6(B)-MI92896) 40547301 LED_Head_Unit-51M (40456101)
  • Page 169 Fig.8-7 169/ 41057601TH Rev.1...
  • Page 170 Table.8-7 Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 2000 40449801 Guide_Cassette(R)Sub_Assy 4PP4076-5360P001 Spring_Detector 220A1866P0140 Square_shaped_connector 40177701 Connector_Cord 40368301 Board-PXC 4PP4076-5742P001 Plate_Earth (link) 170/ 41057601TH Rev.1...
  • Page 171 Fig.8-8 171/ 41057601TH Rev.1...
  • Page 172 Table.8-8 Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 2000 40165301 Frame_Motor(ID1) 40124101 Motor_Pulse(ID) 40129901 Gear_(25/75) 40130701 Gear_Helical(67/43/24) 40130601 Gear_Helical(67/18) 40130201 Gear_Z53/44 40129501 Bracket_Support(ID) 40135301 Photo_Interrupter 40308601 Toner_Sensor(Y)_Assy 40135301 Photo_Interrupter 40449601 Sensor_Assy_T(Y) 172/ 41057601TH Rev.1...
  • Page 173 Fig.8-9 173/ 41057601TH Rev.1...
  • Page 174 Table.8-9 Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 2000 40129401 Frame_Motor(ID) 40124101 Motor_Pulse(ID) 40129901 Gear_(25/75) 40130701 Gear_Helical(67/43/24) 40130601 Gear_Helical(67/18) 40130201 Gear_Z53/44 40129501 Bracket_Support(ID) 40135301 Photo_Interrupter 174/ 41057601TH Rev.1...

  • Page 175: Appendix A Centronics Parallel Interface

    Appendix A CENTRONICS PARALLEL INTERFACE Connector • Printer side : 36-pin receptacle (Female) Type 57RE-40360-830B-D29 (made by Daiichi Denshi) or equivalent • Cable side : 36-pin plug (Male) Type 57-30360 (made by Daiichi Denshi) or equivalent Plug-552274-1 (AMP), 552073-1 (AMP) or equivalent Cable •...
  • Page 176 Table of parallel I/F signals Pin No. Signal name Signal direction Functions → PR DATA STROBE Parallel data sampling strobe DATA BIT - 1 DATA BIT - 2 DATA BIT - 3 → PR DATA BIT - 4 Parallel input data DATA BIT - 5 DATA BIT - 6 DATA BIT - 7...
  • Page 177 Signal level • : 0 V to +0.8 V • HIGH : +2.4 V to +5.0 V Specifications Item Description Mode Compatibility mode, Nibble mode, ECP mode Data bit length 8 bits: Compatibility mode, 4 bits: Nibble mode, 9 bits: ECP mode Input prime Valid/Invalid Receive buffer...
  • Page 178 b) On-line off-line switching timing by ON-LINE SW ON-LINE SW BUSY SELECT 100 ms max. c) Off-line on-line switching by ON-LINE SW ON-LINE SW BUSY SELECT 0 min. ACKNOWLEDGE 100 ms max. 0.5 µs to 10 µs d) nlnit timing (when set to the effective INPUT PRIME signal) 50 µs min.

  • Page 179: Appendix B High Capacity Second Paper Feeder

    Appendix B HIGH CAPACITY SECOND PAPER FEEDER OUTLINE Functions The printer is mounted on top of this High Capacity Second Paper Feeder, and it supplies paper automatically through the operation of hopping motor, which is driven by signals sent from the printer.

  • Page 180: Mechanism Description

    MECHANISM DESCRIPTION General Mechanicsm The sheet at the very top of the stack in the paper cassette is fed into the printer, one sheet at a time, when the High Capacity Second Paper Feeder receives the signal from the printer. First, the hopping motor rotates in the direction of arrow A.

  • Page 181: Hopper Mechanism

    Hopper Mechanism The hopper automatically feeds the printer 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 hopping motor, carrying forward only a single sheet caught by hopping roller at a time. 181/ 41057601TH DRAFT Version...

  • Page 182: Parts Replacement

    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 disassembly procedures in the reverse order. Precautions Concerning Parts Replacement Parts replacements must be carried out, by first turning the printer power switch off “O”...
  • Page 183 [Service Tools] Table 3-1 shows the tools required for the replacement of printed circuit boards and units in the field. Table 3-1 Service Tools Service Tools Q'ty Place of use Remarks No. 1-100 Philips screwdriver 2~2.5 mm screws No. 2-100 Philips screwdriver 3~5 mm screws No.

  • Page 184: Parts Layout

    Parts Layout This section describes the layout of the main components. Cover Upper Hopping motor Hopping gear (One-way) Control board (AOLT-PCB) Feed gear Upper plate (One-way) Second side frame (L) Second side frame (R) Roller holder Idle roller Idle roller Hopping roller Feed roller Cover Lower...

  • Page 185: Parts Replacement Methods

    Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassem- bly order diagram below. High Capacity Second Paper Feeder Idle rollers (3.3.1) AOLT-PCB (3.3.2) Hopping motor (3.3.3) Feed roller (3.3.4) Hopping roller (3.3.5) Side frame (L) assy (3.3.6) Side frame (R) assy (3.3.7) 185/...

  • Page 186: Idle Rollers

    3.3.1 Idle rollers Remove 13 screws 1 and remove the Cover Upper 2,sliding it. Remove two screws 3 and remove the front panel assy 4. (The earth plate 5 come off at the same time, so be careful not to lose them.) Remove two idle rollers 6.

  • Page 187: Aolt-Pcb

    3.3.2 AOLT-PCB Remove 13 screw 1 and remove the Cover Upper 2, sliding it (See 3.3.1 step1.). Remove three connectors 3 and three screws 4. Remove the AOLT-PCB 5. 187/ 41057601TH DRAFT Version...

  • Page 188: Hopping Motor

    3.3.3 Hopping motor Remove the Cover Upper (see 3.3.1 step1). Remove the roller holder assy (see 3.3.1 step2). Remove two connectors 1 and two screws 2, then remove the hopping motor assy 3. Three gears 4 and the connecting lever 5, as well as the wave washer 6 all come off at the same time, so be careful not to lose them.

  • Page 189: Feed Roller

    3.3.4 Feed roller Remove the Cover Upper (see 3.3.1 step1). Remove the roller holder assy (see 3.3.1 step2). Remove the AOLT-PCB (see 3.3.2). Remove the hopping motor assy (see 3.3.3). Remove the latch on the feed roller gear 1 and remove the feed roller gear 1. Remove the latch on the feed roller bearing 2 and remove the feed roller bearing 2.

  • Page 190: Hopping Roller

    3.3.5 Hopping roller Remove the feed roller (see 3.3.4). Remove two-E rings 1 and three knock pins 2. (Be careful no to lose knock pins 2.) Remove the latch on the hopping roller gear 3 and remove the hopping roller gear 3. The bearing F 4 comes off at the same time, so be careful not to lose it.

  • Page 191: Side Frame (L) Assy

    3.3.6 Side frame (L) assy Remove the hopping roller (see 3.3.5). Remove the four screws 1 and remove the Cover Lower. Remove three screws 2 and remove the upper plate 3. Remove the cassette lock spring 4, link 5, pull block 6 (note the directions of the hooks of the cassette lock spring 4).

  • Page 192: Side Frame (R) Assy

    3.3.7 Side frame (R) assy Remove the hopping roller (see 3.3.5). Remove four screws 1 and remove the Cover Lower. Remove three screws 2 and remove the upper plate 3. Remove the cassette lock spring 4, link 5, pull block 6 and earth plate 7 (note the directions of the hooks of the cassette lock spring 4).

  • Page 193: Troubleshooting

    TROUBLESHOOTING Precautions Prior to the Troubleshooting Go through the basic checking items provided in the Operator Guide. Obtain detailed information concerning the problem from the user. Go through the checking in the conditions similar to that in which the problem occurred. Preparations for the Troubleshooting Display on the Operator panel The status of the problem is displayed on the LCD (Liquid Crystal Display) on the Operator...

  • Page 194: Troubleshooting Method

    Troubleshooting Method When a problem occurs, go through the troubleshooting according to the following procedure. Problem occurs Problem displayed by Troubleshooting Carry out detailed the LCD message according to the LCD troubleshooting Status Message List according to the (see 4.3.1) Troubleshooting Flow (see 4.3.2) 4.3.1...

  • Page 195: Troubleshooting Flow

    4.3.2 Troubleshooting Flow • ( JAM error ) Paper Input Jam • Does paper jam occur at the inlet when the power is turned on? • YES Is the paper located above the sensor plate (Inlet)? • YES Remove the paper. •...

  • Page 196: Connection Diagram

    CONNECTION DIAGRAM Interconnection Diagram Hopping motor 1 OP-M1A 2 OP-M1B CN24 3 OP-M2A 4 OP-M2B AOLT - PCB CN22 CN23 To Printer To Cassette switch board (AOLD-PCB) 196/ 41057601TH DRAFT Version...

  • Page 197: Pcb Layout

    PCB Layout AOLT-PCB 197/ 41057601TH DRAFT Version...

  • Page 198: Parts List

    PARTS LIST 198/ 41057601TH DRAFT Version...

  • Page 199: Th Rev.1

    Table 6-1 High Capacity Second Paper Feeder Q'ty Description Part No. Q’ty 1000 2000 Remarks AOLD-PCB 4YA4046-1646G011 Feed roller 41174001 Hopping motor 4PB4076-5718P001 Hopping gear 4PB4043-4486P001 Hopping roller assy 4PA4076-5755G001 Feed roller gear 4PB4043-4488P001 Feed roller bearing 4PP4043-4489P001 Feed idle gear 4PP4076-5712P001 Planet gear 4PP4043-4491P001...

This manual is also suitable for:

Okicolor 8

Table of Contents