Oki OKIPAGE18 Maintenance Manual
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Oki OKIPAGE18 Maintenance Manual

Oki OKIPAGE18 Maintenance Manual

Led page printer
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Download this manual See also: Setup & Installation, Instruction Manual
OKIPAGE18 / OKIPAGE20Plus
LED Page Printer

Maintenance Manual

ODA/ OEL/ INT
2002-09-06 Rev. 4
1 / 244
40931201TH Rev. 4

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Summary of Contents for Oki OKIPAGE18

  • Page 1: Maintenance Manual

    OKIPAGE18 / OKIPAGE20Plus LED Page Printer Maintenance Manual ODA/ OEL/ INT 2002-09-06 Rev. 4 1 / 244 40931201TH Rev. 4...
  • Page 2 PREFACE This maintenance manual describes the field maintenance methods for OKIPAGE18/OKIPAGE20Plus. This manual is written for use by maintenance personnel. Note, however, that the user should refer to the USER’S MANUAL for methods of handling and operating the equipment. 40931201TH Rev. 4...

  • Page 3: Table Of Contents

    CONTENTS 1. CONFIGURATION ..................7 System Configuration ....................7 Printer Configuration ....................8 Optional Configuration ....................9 Specification ....................... 11 Safety Standards ....................... 13 1.5.1 Certification label ..................13 1.5.2 Warning label....................13 2. OPERATION DESCRIPTION ..............14 Main Control Board (BOARD-FFH) ................16 Power Supply Unit .....................
  • Page 4 3.3.28 Lever-Paper end & Lever-Paper near end ........... 85 3.3.29 Guide Assy-Cassette (L) ................87 3.3.30 Guide Assy-Cassette (R) ................88 4. ADJUSTMENT ..................... 90 Maintenance Modes And Functions ................90 4.1.1 User maintenance mode ................92 4.1.2 System maintenance mode ................96 4.1.3 Engine maintenance mode ................
  • Page 5 Appendix A CENTRONICS PARALLEL INTERFACE ........168 Appendix B RS-232C SERIAL INTERFACE............ 172 Appendix C Duplex Unit maintenance ............174 OUTLINE ........................174 Functions ...................... 174 External View and Component Names............174 MECHANISM DESCRIPTION ................... 175 General Mechanicsm ..................175 JAM Release Mechanism ................
  • Page 6 TROUBLESHOOTING ....................217 Precautions Prior to the Troubleshooting ............. 217 Preparations for the Troubleshooting ............217 Troubleshooting Method ................218 4.3.1 LCD Status Message List ..............218 4.3.2 Troubleshooting Flow ..............219 CONNECTION DIAGRAM ..................220 Interconnection Diagram ................220 PCB Layout ....................

  • Page 7: Configuration

    CONFIGURATION System Configuration OKIPAGE18 / OKIPAGE20Plus consists of control and engine blocks as the standard configu- ration (See Figure 1-1.) In addition, the following options are also available. AC IN Printer 120V 230V Operator Face down Face up panel stacker...

  • Page 8: Printer Configuration

    Printer Configuration The printer unit consists of the following hardware components: • Electro-photographic processor • Paper feeder • Controller • Operator panel • Power supply unit Figure 1-2 shows the printer unit configuration. Cover-Side(I/F) Frame-OP panel Assy Stacker Assy Face-up stacker Assy Plate-Shield Cover-Rear Cover-Frame...

  • Page 9: Optional Configuration

    Optional Configuration The options below are available for use with OKIPAGE18 / OKIPAGE20Plus. They are sold separately from the printer unit. (1) Multi Feeder (2) Second/ Third Paper Feeder (3) DUPLEX Unit 40931201TH Rev. 4...
  • Page 10 (4) D-RAM SIMM module (72 pin SIMM, 16 MB/32 MB, EDO SIMM type) See 7.2 (1) for where to install. (5) Flash ROM module (72 pin SIMM, 4MB/8MB) See 7.2 (1) for where to install. 10 / 40931201TH Rev. 4...

  • Page 11: Specification

    Specification (1) Type Desk top (2) External dimensions Height 13.0” (331 mm) (excludes protruding Width 14.4” (366 mm) Portion) Depth 18.2” (462 mm) (3) Weight 19.0 kg (42 lbs) If Installed Duplex 21.3 kg (47 lbs) (4) Development method Dry electrophotography Exposure method LED stationary head (5) Paper used...
  • Page 12 (12) Temperature and humidity In operation Power off mode During Storage Unit °F Temperature 50 - 90 32 - 110 14 - 110 (10 - 32) (0 - 43) (–10 - 43) (°C) Humidity 20 - 80 10 - 90 10 - 90 °F 80.4...

  • Page 13: Safety Standards

    Safety Standards 1.5.1 Certification label The safety certification label is affixed to the printer in the position below. ex. ODA 120V 1.5.2 Warning label The warning label is affixed to the portion which may cause an injury to human body. Follow the instructions on warning labels during maintenance.

  • Page 14: Operation Description

    OPERATION DESCRIPTION OKIPAGE18 / OKIPAGE20Plus consists of a main control board, a power supply unit (120V/ 230V), a power supply unit (high voltage), an operator panel and an electro-photographic process mechanism. The control board receives data through a host I/F, decodes and edits the data, and stores the edited data in a memory.
  • Page 15 LOW VOLTAGE CHARGE ROLLER GENERATION DRIVER CIRCUIT HIGH TRANFER ROLLER VOLTAGE DRIVER CIRCUIT DEVELOPPING ROLLER FILTER CIRCUIT POWER TONER SUPPLY ROLLER SUPPLY UNIT CLEANING ROLLER (high voltage) AC120V/230V HEATOR Figure 2-1 OKIPAGE18 / OKIPAGE20Plus block diagram 15 / 40931201TH Rev. 4...

  • Page 16: Main Control Board (Board-Ffh)

    Main Control Board (BOARD-FFH) The control board consists of an one chip CPU,a LSI, program/font ROM's, DRAM's, an EEPROM, a host interface circuit, and a mechanism driving circuit. (1) One-chip CPU The one-chip CPU is a custom CPU (32-bit internal bus, 32-bit external bus, 140-MHz clock) that incorporates an RISC CPU and its peripheral devices, and has the following functions.
  • Page 17 • RS232C interface • OKI HSP interface (Option) The single effective interface or the automatic interface select mode can be selected using the menu. If the busy state of the printer continues for a long time period, the buffer near-full control releases the busy status at constant intervals even if the host side is busy so not to cause the interface time-out at the host side.
  • Page 18 (For the electrical/ physical characteristics of the interface, see APPENDIX B) (c) OKI 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 19 (7) RAM module • Pin layout • Basic specificaton - Type: 72 pins Standerd SIMM (32 bits buss width) [Note : EDO SIMMtype] - Access time: 60ns, 70ns, 80ns, 100ns - Capacity: 16 or 32MB - Parity: None (8) Flash ROM module •...

  • Page 20: Power Supply Unit

    Power Supply Unit The power supply unit consists of an AC filter circuit, a low voltage power supply circuit, a high voltage power supply circuit, heater drive circuit, and photosensors. (1) Low voltage power supply circuit This circuit generates the following voltages. Output voltage +5 V Logic circuit supply voltage...
  • Page 21 Figure 2-3 shows the sensor layout diagram. Paper running direction Roller-exit Roller-feeder (c) Outlet sensor Roller-Heat Roller-transfer Paper sensor Toner sensor Roller-regist Inlet sensor 1 Inlet sensor 2 Feed roller Figure 2-3 Sensor Function Sensing state Inlet sensor 1 Detects the leading part of the paper and gives the supervision Paper exists.

  • Page 22: Electro-Photographic Process

    Electro-photographic Process 2.3.1 Electro-photographic process mechanism This mechanism prints image data from the control board on the paper by electro-photographic process. The Figure 2-4 shows the layout of the electro-photographic process mechanism. Image Drum Unit Heat Assy LED HEAD Hopping Motor Front Hopping Roller Face Up stacker Front Feeder...
  • Page 23 (1) Image drum unit The image drum unit consists of a sensitive drum, a charger, and a developer. The unit forms a toner image on the sensitive drum, using a electrostatic latent image formed by the LED head. (2) Hopping motor This motor is a pulse motor of 48 steps/rotation that is two-phase excited by the signal from the control board.

  • Page 24: Electro-Photographic Process

    2.3.2 Electro-photographic process The electro-photographic processing is outlined below. Figure 2-5 shows the electro-photo- graphic printing process. 1 Charging The surface of the image drum is uniformly charged with negative charges by applying a negative voltage to the charge roller. 2 Exposure Light emitted from the LED head irradiates the negatively charged surface of the image drum.
  • Page 25 Paper eject roller Paper eject Image data (Face down) Power supply LED head Charger roller Paper Exposure Power eject Power supply roller supply (Bias voltage) Toner Toner Charging cartridge supply roller Paper path Cleaning Doctor Developing Cleaning selector Developing Paper roller blade roller...
  • Page 26 DMON-N (DRUM MOTOR) HMON-N (HOPPING MOTOR) PWM1-P (CLUCH for hopping) PWM2-P (CLUCH for REGISTRATION) PSIN1-N (INLETSENSOR1) WRSENSE-N (PAPER SENSOR) PSOUT-N (OUTLET SENSOR) STB-N (LED HEAD) PAPER PAPER TRAY PRINTER STACKER SIMPLEX PRINTING TIMING CHART...
  • Page 27 DMON-N (DRUM MOTOR) HMON-N (HOPPING MOTOR) PWM1-P CLUCH for hopping) PWM2-P (CLUCH for REGISTRATION) PSIN1-N (INLETSENSOR1) WRSENSE-N (PAPER SENSOR) PSOUT-N (OUTLET SENSOR) STB-N (LED HEAD) DUPMON-N (MAIN MOTOR in DUPLEX UNIT) CLON-P (CLUCH in DUPLEX UNIT) SLON-P (SOLENOID in DUPLEX UNIT) DUPINSNS-N (INLET SENSOR in DUPLEX UNIT) DUPRSNS-N (REAR SENSOR inDUPLEX...

  • Page 28: Process Operation Descriptions

    2.3.3 Process operation descriptions (1) Hopping Hoppings from the first tray and the front feeder are effected by a single hopping motor in the mechanism shown below. Hopping Motor Front Feeder 1st Tray Turning the Hopping motor in direction a (CW) drives the 1st Hopping Roller. Turning the Hopping motor in direction b (CCW) drives the Front Hopping Roller.
  • Page 29 (a) Hopping from the 1st Tray 1 Hopping Rotating the Hopping Motor in direction a (CW) drives the 1st Hopping Roller and the Sub Roller then pick up a sheet of paper in the 1st tray. The Main Motor is always driven in direction c (CCW) on printing.
  • Page 30 (b) Hopping from the Front Feeder 1 Hopping The Front Feeder Plate is normally locked at the lower position by the Release Lever and turn the Micro SW on. Top of the FF Cam which attached on end of the Front Hopping Shaft is normally located Upper position (0 to 30 degree : home position).
  • Page 31 Hopping Motor Hopping Roller (Front Feeder) Gear C b (CCW) (one way clutch build in) Pressure Roller Front Feeder Plate Inlet Sensor Paper Regist Roller Paper Gear A Hopping Roller Sub Roller 1st Hopping Gear (One way Gear build in) (home position) 0~30°...
  • Page 32 Pressure Roller Regist Roller Clutch (Regist) Inlet Sensor Write Sensor Gear E Clutch (Feed) Gear D Main Motor Align Roller (2) Feeding After the end of hopping, the pulse motor dedicated for driving the registration roller rotates to drive the registration roller. The driven registration roller advances the paper until it comes out of the registration roller.
  • Page 33 (3) Charging Charging is effected by applying a DC minus voltage to the charge roller that is in contact with the image drum surface. Power Charge roller supply Image drum (4) Exposure Light emitted from the LED head irradiates the image drum surface with negative charges. The surface potential of the irradiated part of the image drum drops, thereby forming an electrostatic latent image associated with the image signal.
  • Page 34 (5) Developing Toner is attracted to the electrostatic latent image on the image drum surface to convert it into a visible toner image. Developing takes place at the contact between the image drum and the developing roller. 1 As the toner supply roller rotates while rubbing on the developing roller, a friction charge is generated between the developing roller and the toner, allowing the toner to be attracted to the developing roller.
  • Page 35 (6) Transfer The transfer roller is composed of conductive sponge material and is designed to make the image drum surface and the paper closely into contact. Paper is placed over the image drum surface, and a positive charge, opposite in polarity to the toner, is applied to the paper from its reverse side.
  • Page 36 (7) Fusing After the end of the transfer, the unfused toner image is fused on the paper under heat and pressure as it passes between the heater roller and the back-up roller. The heater roller with a Teflon coating incorporates a 750W heater (Halogen lamp), which heats the heat roller. A thermistor which is in contact with the heater roller regulates the heater roller at a predetermined temperature (about 180 ~ 200°C).
  • Page 37 (8) Cleaning After the end of the transfer, residual toner on the image drum is attracted to the cleaning roller temporarily by static electricity to clean the image drum surface. Image drum Cleaning roller Power supply Transfer roller (9) Cleaning of rollers The charge roller, transfer roller and cleaning roller are cleaned in the following cases: •...

  • Page 38: Revision Of Led Head Illumination

    2.3.4 Revision of LED Head Illumination An LED correcting head, which is capable of correcting the illumination of the LED for each dot, is being used in this printer. LED illumination correction function of 16 steps is carried out by using an EEPROM which is installed in the LSI that maintains the LED illumination correction values, and an LED correction drivers together as a pair.
  • Page 39 Read of correction data 39 / 40931201TH Rev. 4...
  • Page 40 (ii) Transfer of correction data to head driver correction data 40 / 40931201TH Rev. 4...
  • Page 41 (2) One side wire-bonding head Correction Control EEPROM LED Array DATA 3 DATA 2 DATA 1 LED Driver LED Driver DATA 0 CLOCK From LOAD STRB4-N STRB3-N STRB2-N STRB1-N (i) LED head is set to the correction control read mode and all correction data stored in EEPROM within the correction control LSI are read by CPU, and stored temporarily in the memory.
  • Page 42 (i) Read of correction data 42 / 40931201TH Rev. 4...
  • Page 43 (ii) Transfer of correction data to head driver correction data 43 / 40931201TH Rev. 4...
  • Page 44 The LED driver corrects the LED illumination by controlling the LED current. The LED illumination can be set in 16 steps, with 7 steps in the direction of illumination increase in relation to the standard value, and 8 steps in the direction of decrease. For this reason, the LED correction data is a 4- bit data for each dot.
  • Page 45 The printing operation timing chart is shown below. Normal Mode Printing Timing Chart CLOCK LOAD DATA3~0 STRB1-N STRB2-N STRB3-N STRB4-N First line printing data sent Second line printing data sent First line printing The printing operation is carried out in normal mode. Under ordinary circumstances such as when the power is turned on or when LOAD signal level is low, the normal mode is enabled.

  • Page 46: Paper Jam Detection

    Paper Jam Detection The paper jam detection function supervises the paper state at power-on time and during printing. In the event that the following state occurs, this function interrupts the printing process. If any of the following errors is presented, recovery printing will be performed by removing the jammed paper (namely by opening the upper cover, removing the jammed paper and closing the upper cover).

  • Page 47: Cover Open

    Cover Open When the stacker cover is opened, the cover open microswitch on the Power Supply Unit (High voltage) is turned off to cut the supply of +30V to the high voltage power supply circuit. As a result, all high-voltage outputs are interrupted. At the same time, the CVOPN signal is sent to the control board to notify it of the off state of the microswitch, and the Main board performs the cover open processing.

  • Page 48: Toner Low Detection

    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 link on the protrusion in the stirring gear. Magnet Protrusion Stirring Bar...
  • Page 49 TONER FULL state TNRSNS t1 < 2.727/4 2.727 SEC. TONER LOW state TNRSNS t1 > 2.727/4 2.727 SEC. • When the toner low state is detected 2 times consecutively, Toner Low is established. • When the toner full state is detected 2 times consecutively, Toner Low is cancelled. •...

  • Page 50: Stacker-Full Detection

    Stacker-full Detection The sensor (interlocked with the lever) at the paper outlet to the stacker detects a stacker-full state (about 250 sheets) and stops printing of the ensuing pages. Page Size Detection The four tab pieces are driven according to the setting position of the paper guide through the cam interlocked with the paper guide of the paper cassette.

  • Page 51: 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 (1) 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 Disconnect the AC inlet plug of the AC cable from the AC receptacle.
  • Page 52 [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 53: Parts Layout

    Parts Layout Cover-Side(I/F) Frame-OP panel Assy Plate-Shield Cover-Frame ROLLER-Transfer Face-up stacker Assy Main Control Board (Board-FFH) Cover-Rear Contact Assy Cover-Side(R) Manual Feed Assy Cover-Side(L) Assy Base Unit Cover-Blind CASE Assy-Cassette Figure 3-1 53 / 40931201TH Rev. 4...
  • Page 54 Feed Unit-FRONT Toner Cartridge (Type 7) ID Unit (Type 7) HEAT-Assy ROLLER Motor-Main Assy-Feed FRAME-Main GUIDE-Assy-Eject LED HEAD DC Fan Motor Stacker Cover Figure 3-2 54 / 40931201TH Rev. 4...
  • Page 55 Figure 3-3 55 / 40931201TH Rev. 4...

  • Page 56: How To Change Parts

    How to Change Parts This section explains how to change parts and assemblies appearing in the disassembly diagram below. 56 / 40931201TH Rev. 4...

  • Page 57: Face -Up Stacker Assy

    3.3.1 Face -up Stacker Assy (1) Turn off the AC Power Switch and unplug the AC Power Cord from the outlet. (2) Disconnect the Interface Cable 1. (3) Open the face-up stacker assy 2, unhook the right and left projections, and then remove the face-up stacker assy 2.

  • Page 58: Contact Assy

    3.3.2 Contact Assy (1) Open the stacker assy 1 and unscrew 2 screw 2 to remove the assy -side (L)3. (2) Unscrew 2 screws 4 and remove the plate (contact) 5 and contact Assy 6. Note! Don’t deform the electrode plates of the contact assy 6. Unlock this part before removing 58 / 40931201TH Rev.

  • Page 59: Dc Fan Motor

    3.3.3 DC Fan Motor (1) Remove the cover assy-side (L). [See 3.3.2 (1)] (2) Remove the DC fan motor 1 by pulling out the connector of DC fan motor 1. 59 / 40931201TH Rev. 4...

  • Page 60: Op Panel Assy

    3.3.4 OP Panel Assy (1) Disconnect the Interface cable 1. (2) Open the stacker assy 2, unscrew 2 screws 3 and remove the cover side (I/F) 4. (3) Remove 2 screws 5 and flexible cable 6 to remove the operator panel assy 7. 60 / 40931201TH Rev.

  • Page 61: Board-Ffh

    3.3.5 Board-FFH (1) Remove the operator panel assy and cover side (I/F). [See 3.3.4] (2) Unscrew 2 screws 1 and remove the cover side (R) 2. (3) Unscrew 4 screws 3 and remove plate-shield 4. (4) Unscrew 4 screws 5 and 2 screws 6, unplug all the connectors 7 , and remove Board-FFH 61 / 40931201TH Rev.

  • Page 62: Stacker Assy, Damper Arm, Cover Rear

    3.3.6 Stacker Assy, Damper Arm, Cover Rear (1) Remove the face-up stacker assy. [See 3.3.1] (2) Remove the cover-side (L). [See 3.3.2 (1)] (3) Remove the OP panel assy. [See 3.3.4] (4) Remove the Board-FFH. [See 3.3.5] (5) Loosen 2 screws, unlock the both sides latches and remove the cover rear A. (6) Unscrew 2 screws 1 and cover frame 2.

  • Page 63: Sensor Stacker Full

    3.3.7 Sensor Stacker Full (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove the Stacker assy. [See 3.3.6] (3) Remove four screws 1. Remove stacker mount 2 by releasing the tabs at position 2A . (4) Remove Sensor stacker full 3 by releasing speading the plastic tabs on each side of sensor Assy 3 and lifting switch from cover.

  • Page 64: Cable Cover (Guide Film)

    3.3.8 Cable cover (guide film) (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove the stacker Assy. [See 3.3.6] (3) Unscrew 2 screws 1 release tabs at portion 1A . Remove cable cover 2, guide film 3. Note : Use care when replacing cable cover.

  • Page 65: Damper

    3.3.9 Damper (1) Remove the damper arm. [See 3.3.6] (2) Unscrew 2 screws 1 and remove the two damper 2. 65 / 40931201TH Rev. 4...

  • Page 66: 3.3.10 Feeder Unit-Front

    3.3.10 Feeder Unit-Front (1) Open the manual feed assy 1 and release both right and left parts by pulling out the engagements on the lower part. (2) Stand the manual feed assy 1 on end and unhook the engagements with both right and left manual feed hopper stays.

  • Page 67: Roller Assy-Regist

    3.3.11 Roller Assy-Regist (1) Remove the feeder unit-front. [See 3.3.10] (2) Remove an E-ring 3, gear assy-clutch 4, and four screws 1 in this order, and lifting out the roller assy-regist 2. 67 / 40931201TH Rev. 4...

  • Page 68: 3.3.12 Motor -Main

    3.3.12 Motor -Main (1) Remove the stacker assy. [See 3.3.6] (2) Remove the feeder unit-front. [See 3.3.10] (At this point, the manual feed assy has not to be removed.) (3) Remove the DC fan motor. [See 3.3.3] (4) Remove the contact assy. [See 3.3.2] (5) Remove the plate-FG (F) 1.
  • Page 69 Latch View A View A 69 / 40931201TH Rev. 4...

  • Page 70: 3.3.13 Guide Assy-Eject

    3.3.13 Guide Assy-Eject (1) Remove the lever back up release. [See 3.3.12(8)] (But the roller transfer/feeder unit front/plate-FG have not be removed) (2) Loosen 2 screws 1, unlock the both side’s latches and remove the cover rear 2. [See 3.3.6 (5)] (3) Unlock the latches on both sides of the guide assy-eject 3 and lifting it out.

  • Page 71: 3.3.14 Heat Assy

    3.3.14 Heat Assy (1) Remove the cover assy-side (L). [See 3.3.2 (1)] (2) Unplug the connectors 1, 2. (3) Unscrew 4 screws 3 and remove the heat assy 4 in the direction of the arrow by lifting the right side first. Note ! •...

  • Page 72: Roller Feed (C)

    3.3.15 Roller feed (C) (1) Remove the guide assy-eject. (See 3.3.13) (But roller transfer/feeder unit-front/plate-FG(F) have not be removed) (2) Remove the gear roller (C) 1 and bush 2, warp (a) part of the plate-FG (BK) 3. Take off the carrier bearing 4 and remove the roller feed (c) 5 in the direction of the arrow. Note ! Be careful not to deform (a) part of the plate-FG (BK) 3.

  • Page 73: 3.3.16 Roller Assy-Bk

    3.3.16 Roller Assy-BK (1) Remove the heat Assy. [See 3.3.14] (2) Remove the lever back up release. [See 3.3.12 (8)] (3) Unlock the engagement with the plate-FG (BK) 1 and lift out the roller heat assy 2. 73 / 40931201TH Rev. 4...

  • Page 74: 3.3.17 Roller Assy-Feed

    3.3.17 Roller Assy-Feed (1) Remove the feeder unit -front. [See 3.3.10] (2) Remove the roller assy-feed 1 by unlocking a latch. 74 / 40931201TH Rev. 4...

  • Page 75: 3.3.18 Led Head

    3.3.18 LED Head (1) Remove the stacker assy 1. [See 3.3.6] (2) Unplug the PC connector 2 and 2 LED cables 3 from the LED head 4. (3) Open the hooks of the cover stacker 1 in the direction of the arrow and remove the LED head (4) Pull out the head spring 5 from the post.

  • Page 76: 3.3.19 Paper Cassette, Roller Ass-Feed, Roller-Assy-Hoppibg

    3.3.19 Paper cassette, ROLLER Ass-Feed, ROLLER-Assy-Hoppibg (1) Pull out the case assy -cassette 1 from the printer. (2) Remove the ROLLER Ass-Feed 2 and remove the ROLLER-Assy-Hopping 3. 76 / 40931201TH Rev. 4...

  • Page 77: 3.3.20 Frame Assy-Separation

    3.3.20 Frame Assy-Separation (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Pull out the case Assy-Cassette 1 from the printer.[See 3.3.19(1)] (3) Release two locks and remove frame assy-separation 2. (At this time, coil spring 3 is also remove.

  • Page 78: 3.3.21 Transfer Roller/Tr Gear/Tr Bearing

    3.3.21 Transfer Roller/TR Gear/TR Bearing (1) Open the stacker cover . (2) Unlock the lock by lifting the TR gear 1 to remove the TR gear 1 and roller transfer 2. (Use the Holder-TR Eject 5 for the removal.) Note ! Don’t place the removed roller transfer directly on the desk and so on. When placing it, lay a paper and the like under it.

  • Page 79: 3.3.22 Ep Lock Shaft

    3.3.22 EP lock shaft (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove Frame-Main [See.3.3.12(7)] (3) Remove screw 1. Turn EP lock lever (L) Assy 2 in the direction of arrow A . (4) Remove spring 3.

  • Page 80: 3.3.23 Lever Assy- Out Sensor

    3.3.23 LEVER Assy- Out Sensor (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove the frame main [See 3.3.12(7)] (3) Press the clamp part of LEVER Assy.- Out Sensor 1. Remove the LEVER Assy.-Out Sensor 1 by pushing it upward from the lower side.

  • Page 81: 3.3.24 Toner Sensor Lever

    3.3.24 Toner sensor lever (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove the frame main [See 3.3.12(7)] (3) Squeeze the clamp part of toner sensor lever 1 and remove the toner sensor lever 1 by pushing it upward from the lower side.

  • Page 82: 3.3.25 Paper Sensor Lever

    3.3.25 Paper sensor lever (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove the frame main [See 3.3.12(7)] (3) Squeeze the clamp part of the paper sensor lever 1 and remove the paper sensor lever 1 by pushing it upward from the lower side.

  • Page 83: 3.3.26 Inlet Sensor Lever

    3.3.26 Inlet sensor lever (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove the frame main [See 3.3.12(7)] (3) Squeeze the clamp part of two inlet sensor levers 1. Remove the inlet sensor levers 1 by pushing them downward.

  • Page 84: 3.3.27 Power Supply Unit

    3.3.27 Power supply unit (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove the frame main [See 3.3.12(7)] (3) Unscrew 2 screws 1 and remove the BRACKET-AC 2. (4) Unscrew 10 screws 3 and remove the connector 6 remove the Power supply unit [AC- DC(120/230V)] 4 and Power supply unit (High voltage) 5.

  • Page 85: 3.3.28 Lever-Paper End & Lever-Paper Near End

    3.3.28 Lever-Paper end & Lever-Paper near end (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove the frame main [See 3.3.12(7)] (3) Remove screw 1 and then remove the PLATE-Base 2. (4) Remove two Spacer-Cord(KGPS-5RF) 4 and then remove FILM-Insulation 4. (5) Remove four screws 5 and then remove the FRAME ASS-Hopping 6.
  • Page 86 86 / 40931201TH Rev. 4...

  • Page 87: Guide Assy-Cassette (L)

    3.3.29 Guide Assy-Cassette (L) (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove Frame Main [See 3.3.12(7)] (3) Remove PLATE-Base and FRAME Assy Hopping [See 3.3.28 (5)] (4) Unscrew two screw 1 and then remove Guid Assy-Cassette (L) 2. (5) Remove SPRING-Sheet 3 and then remove LINK-Sheet 4 and pull block 5.

  • Page 88: Guide Assy-Cassette (R)

    3.3.30 Guide Assy-Cassette (R) (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove Frame Main [See 3.3.12(7)] (3) Remove PLATE-Base and FRAME Assy Hopping [See 3.3.28 (5)] (4) Unscrew two screw 1 and then remove Guid Assy-Cassette (R) 2. (5) Remove SPRING-Sheet 3 and then remove LINK Sheet 4 and pull block 5.
  • Page 89 89 / 40931201TH Rev. 4...

  • Page 90: Adjustment

    ADJUSTMENT This chapter explains the adjustment necessary when replacing a part. Adjustment is made by changing a parameter value set in EEPROM on the controller PCB. A parameter is able to set with the key operation on the operator panel. This printer has three kinds of the maintenance mode, it is required to select one of the maintenance mode necessary when replacing a part.
  • Page 91 • Engine maintenance mode Note: This mode is used only by service persons and it should not be released to the end- users. To enter the engine maintenance mode, turn on the POWER switch while pressing the FORM FEED key and ENTER key. [Function] There are 21 functions as follows.

  • Page 92: User Maintenance Mode

    4.1.1 User maintenance mode • To enter the user maintenance mode, turn the power supply ON while pressing the Menu key. • This mode uses the menu for function selection. • The user maintenance mode provides the following functions: (1) Menu reset •...
  • Page 93 (11) Select paper source command parameter (Second tray) • The function which sets the parameter selecting the second tray by paper source command (ESC & # H) on PCL. (12) Select paper source command parameter (Third tray) • The function which sets the parameter selecting the third tray by paper source command (ESC &...

  • Page 94: User Maintenance Mode Menu System

    User maintenance mode menu system Menu key Power ON LCD display USER MNT Press the Menu key. After the end Press the of processing Enter key. MENU MENU ON-LINE*** RESET RESET'NG Press the Menu key. Press the Enter key. End of processing is performed HEX DUMP ON-LINE .HEX by the power supply OFF.
  • Page 95 Press the Writing into the EEPROM is performed or key. Y-ADJUST 0 mm * when the Enter key is pressed. + 0.25 mm (0.25 mm intervals) + 0.75 mm Press the + 1.00 mm Menu key. + 1.25 mm + 1.50 mm + 1.75 mm + 2.00 mm - 2.00 mm...

  • Page 96: System Maintenance Mode

    4.1.2 System maintenance mode • The system maintenance mode is set when the power is turned ON while pressing the Recover key. • This mode adopts the menu for function selection. • The system maintenance mode is provided with the following functions: (1) Page count display •...
  • Page 97 System maintenance mode menu system RECOVER key Power ON LCD display SYS MNT Press the Menu key. PAGE CNT nnnnnn Press the Menu key. Press the or key. Writing into the EEPROM is performed PAGE PRT ENABLE when the Enter key is pressed. DISABLE * Press the Menu key.

  • Page 98: Engine Maintenance Mode

    4.1.3 Engine maintenance mode • The engine maintenance mode is activated when the power is turned ON while pressing to the Form Feed key and Enter key. • This mode adopts the menu for function selection. • The method for exit from this mode depends on the setting. •...
  • Page 99 (12) Setting of High Capacity Third Paper Feeder paper feed length • This function sets the paper feed length of the High capacity Third paper feeder. (13) Selection of High Capacity Third paper feeder download table • This function selects the download table for the High capacity third paper feeder. (14) Setting of Multi Feeder paper feed length •...

  • Page 100: Engine Maintenance Mode Menu System

    • Engine maintenance mode menu system ENTER key FORM FEED Power ON LCD display ENG MNT Press the Menu key. Press the or key. AUTO* HEAD TYPE TYPE1 TYPE2 Press the TYPE3 Menu key. When "HEADTYPE= AUTO" TYPE3WB is selected. Press the or key.
  • Page 101 Press the or key. Writing into the EEPROM is performed FRNT POS Same as (*1) when the Enter key is pressed. 0 mm * Press the Menu key. Press the or key. Writing into the EEPROM is performed T2 POS Same as (*1) when the Enter key is pressed.

  • Page 102: Eeprom Initialization

    4.1.4 EEPROM initialization The corresponding area of the EEPROM is initialized for each event as shown Table 4-1 and Table 4-2. Table 4-1 EEPROM Initial Setting Range Event Users Maintenance Menu Reset Systems Maintenance EEPROM Reset Engine Maintenance (Note 2) (Note 2) Engine Reset Firm Revision Check Error Power On...

  • Page 103: Adjustment When Replacing A Part

    Adjustment When Replacing A Part Adjustment necessary when replacing one of the followimg parts. Part Replaced Adjustment Image Drum Cartridge Reset the image drum counter. (Refer to User's manual) Fuser Unit Reset the fuser counter. (Refer to Chapter 4.2.1) 103 / 40931201TH Rev.

  • Page 104: Resetting The Fuser Counter

    4.2.1 Resetting the fuser counter (1) The fuser counter can be reset in the engine maintenance mode. (2) Resetting method Operation LCD display With the ENTER and FORM ENG MNT FEED keys pressed, turn the printer power on. Press the MENU key until FUSER FUSER COUNT COUNT RESET is displayed.

  • Page 105: Destination Setting

    The desired destination can be set by turning the power on while depressing two keys corresponding to the destination according to the following table. Destination Keys to be depressed MENU, MENU, OKI-INT-A MENU, PAPER SIZE (Australia, etc.) OKI-INT-L MENU, TRAY TYPE (Singapore, etc.) This function shall not be open for users.

  • Page 106: Setting Of Led Head Drive Time

    4.2.3 Setting of LED head drive time As the OKIPAGE18/ OKIPAGE 20Plus automatically judges head type and head drive time, there is no need for changing any setting in replacing LED head. But individual setting can be changed by ENGINE Maintenance menu as before.
  • Page 107 • Setting of LED head drive time Drive time of the LED head is to set parameter of drive time setting values correspond- ing to the luminous intensity displayes marked on the LED head to EEPROM. Corresponding table of luminous energy display and drive time parameter Luminous intensity Luminous intensity display on LED head...
  • Page 108 Setting Example : When setting head type to TYPE3WB( both-sided wire-bonding head) and head drive time to No. 14. FORM FEED key ENTER key Power ON LCD display ENG MNT Press the Menu key. Default setting is AUTO HEADTYPE AUTO * Press or key, until TYPE3WB is displayed.

  • Page 109: Periodic Maintenance

    PERIODIC MAINTENANCE Periodic Replacing Part As specified below, the parts shall be replaced periodically. Part name Condition for replacement Cleaning Remarks • Toner cartridge 5,000 • LED head. Consumables • Regist Paper dust. • Image drum cartridge 30,000 • LED head. Consumables •...

  • Page 110: Cleaning The Plastic Film

    5.2.2 Cleaning the Plastic Film Open the stacker assy and remove I/D unit. After cleaning LED head, wipe off the paper powder by LED LENS CLEANER and remove the paper powder. Plastic Film Take the remove paper powder out of the printer unit in such a way as not to spill it, and then waste it.

  • Page 111: 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 112: 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 113 Category LCD status message Trouble or status Remedy Daily status Indicates on-line status Normal operation READY ON-LINE .xxx tttttt: Tray dddddd tttttt ATTENTION (TRAY 1, TRAY 2, TRAY3, and FRONT, MANUAL, FEEDER) jjjjjj: Input device (TRAY 1, TRAY 2, TRAY3, FRONT, MANUAL, FEEDER, DUPLEX) Cassette tray (T1;...
  • Page 114 Category LCD status message Trouble or status Remedy Daily status Indicate that the printer is printing. Normal operation READY PRINTING ATTENTION Indicates that job flush is designated and the state in which data is READY received and abandoned until the completion of a job. FLUSHING JOB ATTENTION READY...
  • Page 115 Category LCD status message Trouble or status Remedy Daily status Indicates that the toner is almost empty. (This is indicated after 100 Replace the toner cartridge. READY pages after "TONER LOW" indication.) TONER EMPTY This will be indicated along with other messages in the first line. ATTENTION However, this will not be indicated when "CHANGE DRUM"...
  • Page 116 Category LCD status message Trouble or status Remedy Daily status Prints all the fonts which are included in the printer. Normal operation. READY Ready Light on: execution by command PRINT FONTS Ready Flash: execution by switch. ATTENTION Indicates that the printer is under cleaning printing process. Set requested paper to front tray, and press FORM FEED READY DRUM CLEANING...
  • Page 117 Category LCD status message Trouble or status Remedy Daily status Indicates that the face down stacker is full with sheets. Remove the paper from the stacker. READY STACKER FULL Repair the broker stacker sensor cable. REMOVE THE PAPER Repeat the insertion and removal of the connector. ATTENTION Clean or replace the stacker full sensor.
  • Page 118 Category LCD status message Trouble or status Remedy Daily status Informs that the data within the receiving buffer Overflows. Press the RECOVER key on the operator panel to release READY ERROR RECEIVE The operation is continued by pressing Recover switch. the error display.
  • Page 119 Category LCD status message Trouble or status Remedy Daily status Paper of improper size was fed from the tray. Check the paper in the tray or check to see if more than READY ERROR PAPER SIZE one sheet of copy were fed simultaneously. Open the cover, then close it to perform recovery printing CHECK jjjjjj ATTENTION...
  • Page 120 REMOVE THE PAPER ATTENTION If the error occurs frequently, see chapter 6.5.2 Informs that OKI HSP I/F card is under reset. It can be automatically Warning READY OKI HSP I/F CARD restored by stopping the reset.
  • Page 121 Category LCD READY Trouble or status Remedy ATTENTION message A fault occurred in the printer. Controller ERROR CONTROLLER Light off Flash Turn the power off, then on to release the error display. If the error nn-aaaaaaaa error display cannot be released by this procedure, call a service person. Error Remedy Code(nn)
  • Page 122 Category LCD READY Trouble or status Remedy ATTENTION message Remedy Code(nn) Error Controller error Toner sensor error Check the operation of the toner sensor lever. Relace the Power Supply Unit (High Voltage) Replace the main board. Note: When replacing the Main board, install the EEPROM mounted on the replaced Main board.
  • Page 123 Category LCD READY Trouble or status Remedy ATTENTION message Informs operator that an error has occurred in the controller. Light off Flash Proccesor ERROR nn-aaaaaaaa nn=Exception Code error aaaaaaaa=Error Address Recovery only with power off/on since operations cannot be guaranteed. If turning the printer OFF/ON does not recover the printer, call in a service man.

  • Page 124: Lcd Message Troubleshooting

    8. Messages cannot be received through the parallel interface. 9. Messages cannot be received through the serial interface. 10. Data cannot be received through the OKI HSP interface. 11. I/F time-out between the printer and the Duplex unit. Printing sequence error in the Duplex. (ERROR83, ERROR84,...

  • Page 125: The Printer Does Not Work Normally After Being Turned On

    The printer does not work normally after being turned on. • message shown in the LCD display (for less than 1 second)? • Is the AC cable connected properly? • No Connect the cable properly. • Is the message (16 columns display only on the top row ) shown in the LCD display? •...
  • Page 126 From 1-2 on the preceding page • Is the operator panel connected to the Main board properly? • No Connect the operator panel properly. • Is the connecting cord defective? • Yes Replace the connecting cord. • Replace the operator panel assembly. •...
  • Page 127 STKFULL HEAD2 HEAD1 IC31 IC30 SIZE POWER POWER CONNECTOR Main control board (BOARD-FFH) Figure 6-1 Connector and Pin Location INLET Figure 6-2 Measurement by a Multimeter 127 / 40931201TH Rev. 4...
  • Page 128 25 26 PC501 Figure 6-3 Connector and Pin Location 128 / 40931201TH Rev. 4...

  • Page 129: Jam Error

    [JAM error] Paper input jam (1st tray) • Does a jam error occur when the power is turned on? • Is the paper at the inlet sensor lever? • Yes Remove the paper. • No Does the inlet sensor lever operate smoothly? •...

  • Page 130: Paper Input Jam (Front Feeder)

    Paper input jam (front feeder) • Does jam error occur when the power is turned on? • Is the paper at the inlet sensor lever? • Yes Remove the paper. • No Does the inlet sensor lever operate smoothly? • No Replace the inlet sensor lever.

  • Page 131: Paper Feed Jam

    Paper feed jam • Does a paper feed jam occur when the power is turned on? • Is the paper on the paper sensor lever? • Yes Remove the paper. • No Does the paper sensor lever operate smoothly? • No Replace the paper sensor lever.
  • Page 132 From on the preceding page From on the preceding page • Is the image drum set properly? • No Set the image drum properly. • In case of paper feed from the front feeder, check the hopping roller of the front feeder assembly.
  • Page 133 From on the preceding page • Is the transfer roller rotating smoothly? • Is there any defective gear of the transfer roller? • Yes Replace the defective gear. • Replace the transfer roller. • Is the fuser unit installed properly? •...

  • Page 134: Paper Exit Jam

    Paper exit jam • Does a paper exit jam error occur when the power is turned on? • YES Is the paper on the outlet sensor lever? • Yes Remove the paper • No Does the outlet sensor lever operate smoothly? •...

  • Page 135: Paper Size Error

    Paper size error • Is paper of the specified size used? • Use paper of the specified size. • Do the inlet sensor lever and paper width sensor lever operate smoothly? • Replace the inlet sensor lever or paper width sensor lever. •...
  • Page 136 Fuser unit error (ERROR 71), (ERROR 72), (ERROR 73) • Turn the power OFF/ON. • Does a fuser unit error occur immediately? • Is the thermistor open or shorted? Measure the resistance between thermistor contacts. (About 220 kΩ at room temperature, 25°C) (See Chapter 7.3 for the measuring points.) •...
  • Page 137 From on the preceding page From on the preceding page • Replace the fuser unit. • Is the printer recovered? • No Replace the Main board. • YES END • Is the heater or thermistor open? Measure the resistance between the thermistor contacts, and between heater contacts (normal resistance: 220 kΩ...
  • Page 138 I/F time-out between printer and optional tray (ERROR 81) • Is an optional tray (2nd / 3rd tray or envelope feeder) used? • Is the connection between the Main board and the optional tray connected properly. (See Chapter 7.1.) • No Connect the cable properly.

  • Page 139: Messages Cannot Be Received Through The Parallel Interface

    Duplex Unit with the old version number/model (only 20PPM type for OP20/ 20n) has been installed (ERROR 85). • Is the Duplex Unit installed? • Is the Duplex Unit of OP20/20n or Under Rev.02.20 of the Duplex F/W Rom? • No Replace the Duplex Unit.

  • Page 140: Messages Cannot Be Received Through The Serial Interface

    Message cannot be received through the serial interface. • Is message ERROR HOST I/F displayed ? • Set the RS 232C I/F ENABLE in "HOST I/F" items of Menu 1. • No Set the RS 232C I/F to "ENABLE". • Do the following items selected for RS232C SERIAL in menu level 2 coincide with those selected at the host side ? •...

  • Page 141: Data Cannot Be Received Through The Oki Hsp Interface

    Data cannot be received through the OKI HSP interface • Is the interface board (option) connected to the OKI HSP interface connector on the Main board properly? • Connect the interface board (option) to the OKI HSP interface connector properly.

  • Page 142: Image Troubleshooting

    6.5.3 Image troubleshooting Procedures for troubleshooting if abnormal images have been printed out are explained below. Figure 6-3 below shows typical abnormal images. Trouble Flowchart number Images are light or blurred as a whole (Figure 6-4, Dark background density (Figure 6-4, Blank paper is output (Figure 6-4, Black belts stripes in the vertical direction (Figure 6-4, Cyclical defect (Figure 6-4,...
  • Page 143 Image are light or blurred a whole. • Is toner low? (Is the TONER LOW message displayed?) • Supply toner. • Is paper of the specified grade used? • Use paper of the specified grade. • Is the lens surface of the LED head dirty? •...
  • Page 144 Dark background density • Has the image drum been exposed to external light? • Mount the image drum in the printer and wait for about 30 minutes. • Is the heat roller of the fusing unit dirty? • Clean the heat roller. •...
  • Page 145 Black belts or stripes in the vertical direction • Replace the image drum cartridge. • Has the trouble been removed? • YES END Note: After replacing the image drum cartridge, set the printer in the user maintenance mode by turning the power on while pressing the MENU key, and reset the drum counter, (Refer to User's Manual.) •...

  • Page 146: Cyclic Error

    Cyclic error Frequency Remedy Image drum 3.71” (94.2 mm) Replace or clean the image drum cartridge. Developing roller 2.05” (52.1 mm) Replace the image drum cartridge. Toner supply roller 3.24” (82.24 mm) Replace the image drum cartridge. Charging roller 1.37” (34.7 mm) Replace the image drum cartridge.
  • Page 147 Print voids • Is the contact plate of the transfer roller contacted with the Power Supply Unit (High Voltage) properly? (See Figure 6-5.) • Adjust the contact plate contact to contact the Power Supply Unit (High Voltage) properly and the shaft of the transfer roller. •...

  • Page 148: Poor Fusing

    Poor fusing • Is paper of the specified grade used? • Use paper of the specified grade. • Is the spring of the back-up roller normal? • Replace the spring. • Is the contact of the fusing unit assy contacted with the contact assy properly? •...
  • Page 149 White belts or streaks in the vertical direction • Are the LED lens dirty? • Clean the LED lens. • Is the contact plate of the transfer roller contacted with the Power Supply Unit (High Voltage) properly? (See Figure 6-6.) •...

  • Page 150: Snowy Print Of High Density Pattern

    Snowy print of high density pattern • Is toner low? • Supply toner. • Is paper of the specified grade used? • Use paper of the specified grade. • Is the lens of the LED head dirty? • Clear the lens. •...
  • Page 151 Figure 6-5 151 / 40931201TH Rev. 4...
  • Page 152 Figure 6-6 152 / 40931201TH Rev. 4...

  • Page 153: Wiring Diagram

    BOARD-FFH STKFULL DATAOUT HEAD2 12P BOARD-PCO DATAIN HEAD1 14P HMPH1N FRONT PAPER HMPH1P HMPH2N SENSOR STB4 HMPH2P STB3 STB2 TRAYPAPER STB1 HOME DATA1 INSEND HOME SENSOR DATA0 DATA DATA3 DATA2 HOPPING MOTOR DMPH1N DMPH1P MAIN DMPH2N MOTOR DMPH2P CLUTCH FOR REGISTRATION ROLLER STUKKER FULL CLUTH FOR HOPPING...

  • Page 154: Pcb Layout

    2NDTRAY MOTOR ENVELOPE FRONT PANEL MAIN2 MAIN1 HOPPING2 HOPPING1 IC19 SIMM2 SIMM2 SIMM1 SIMM1 FSIMM1 FSIMM1 DRAM DRAM MUPIS PS ROM (ODD) PS ROM (EVEN) PCL ROM (ODD1) PCL ROM (EVEN1) PCL ROM (ODD0) PCL ROM (EVEN0) CENT RS232C...
  • Page 155 Power supply board (AC120V/230V) Power supply board (High voltage) 155 / 40931201TH Rev. 4...
  • Page 156 Flash ROM module (BOARD-FSL or BOARD-FSL-2) ROM1 ROM0 EEPROM 156 / 40931201TH Rev. 4...

  • Page 157: Resistance Check

    Unit Circuit Diagram Illustration Resistance Between pins 1 and 2: 3.1Ω Yellow Motor-Main Between pins 3 and 4: 3.1Ω Blue Orange Thermostat to "CN2" connector Heater on the Power Supply Unit (AC120V or 230V) Between pins 1 and 2: 220kΩ (at 25°C) Between pins 3 and 4: 1.5Ω...
  • Page 158 Unit Circuit Diagram Illustration Resistance Orange Yellow Between pins 1 and 2: 6.7Ω Hopping motor Between pins 3 and 4: 6.7Ω Brown Black +38 V Yellow FANALM-N Black...

  • Page 159: Program/Font Rom Location

    Program/Font ROM Location In case of MASK ROM STKFULL HEAD2 HEAD1 IC31 IC30 SIZE POWER IC31 IC30 159 / 40931201TH Rev. 4...

  • Page 160: Parts List

    PARTS LIST Figure 8-1 Printer Unit 160 / 40931201TH Rev. 4...
  • Page 161 Table 8-1 Printer Unit Reccomended Q’ty Parts No. Name Q’ty/U Remarks 1000 40441001 Cover-Side(L) Ass. 40304101 Cover-Side(R) 40304401 Cover-Frame 40304301 Cover-Side(I/F) 40323401 Plate-Shield 40304001 Cover-Rear 40304508 Frame-OP panel Ass. (ODA) 40304513 Frame-OP Panel Ass. (OEL) OP20 Plus(OEL) Blue Button DCO No. SP7-0997 40304509 Frame-OP panel Ass.
  • Page 163 Table 8-2 Frame-Main Unit (1/2) Reccomended Q’ty Parts No. Name Q’ty/U Remarks 1000 40596901 FRAME Assy-Main 4LB-192600-6 Spring (TSP3.3/0.35-16.2*33.9/230G) 4PB4083-6197P001 Damper 40315801 LEVER-Separator 4PP4076-5035P001 TR Bearing 4PP4076-5039P001 TR Spring R 40299701 GUIDE ASS.-Discharge 40032901 Sensor-In 40033001 Spring-In Sensor 3PP4076-5082P001 Write Sensor Lever 4PP4076-5086G001 Toner Sensor Lever (Adhesive) 40583801...
  • Page 164 Table 8-2 Frame-Main Unit (2/2) Reccomended Q’ty Parts No. Name Q’ty/U Remarks 1000 40302301 GEAR-Idle J 40313501 BEARING-Plastic (Feed) 4PP4076-5308P001 Bearing 40371501 GEAR Assy.-Clutch (Z50) 40432301 PLATE-FG (1st) 40313201 ROLLER Ass.-Feed 40371601 GEAR Assy.-Clutch (Z40) 4PP4076-5044P001 EP Rock Lever R 4PP4076-5045P001 EP Lock Spring 40301001...
  • Page 165 Figure 8-3 Base Unit 165 / 40931201TH Rev. 4...
  • Page 166 Table 8-3 Base Unit (1/2) Reccomended Q’ty Parts No. Name Q’ty/U Remarks 1000 40377601 GUIDE Assy.-Cassette(L) 40597101 GUIDE-Cassette (L) For Maintenance 4PP4122-1217P001 Pull Block 40349102 Lever-Link (Caulking) 40349701 ROLLER-Link 4PP4076-5358P001 Link Support 40928101 Spring-Sheet 4PP4076-5359P001 Cassette Stopper 4PP4043-4526P001 Pressure Coil Spring 40445601 Earth Plate L 40377701...
  • Page 167 Table 8-3 Base Unit (2/2) Reccomended Q’ty Parts No. Name Q’ty/U Remarks 1000 4YB4120-1137P001 FX050 Photo Sensor 40375202 Connection Code-Wire To Paper End 40375302 Connection Code-Wire To Paper Near End 40337301 LEVER-Sub roller (caulking) 40337601 ROLLER-Link (Sub) 40433701 Bracket-Sub roller (Press fitting) 40358101 Plate-Planet 40317701...

  • Page 168: Appendix A Centronics Parallel Interface

    Appendix A CENTRONICS PARALLEL INTERFACE 1) Connector • Printer side : 36-pin receptacle Type 57RE-40360-830B-D29 (made by DDK) or equivalent • Cable side : 36-pin plug Type 57-30360 (made by DDK) or equivalent 2) Cable • Cable length : 6 ft (1.8 m) max. (a shielded cable composed of twisted pair wires is recommended for noise prevention) Note: Cable is not provided.
  • Page 169 4) Signal level • LOW 0 V to +0.8 V • HIGH +2.4 V to 5.0 V 5) Interface circuit a) Receiving circuit DATA STROBE and INPUT PRIME 74LS19 or equivalent Signal name DATA STROBE 3.3KΩ 100Ω 560pF INPUT PRIME 3.3KΩ...
  • Page 170 6) Timing charts Compatible mode a) Data receiving timing PARALLEL DATA (DATA BITs 1 to 8) 0.5 µs min. 0.5 µs min. 0.5 µs min. DATA STOROBE 0.5 µs min. 0 min. 0.5 µs max. BUSY 0 min. 0 min. ACKNOWLEDGE 0.5 µs to 10 µs 0 min.
  • Page 171 d) INPUT PRIME timing (when set to the effective INPUT PRIME signal) 50 µs min. INPUT. PRIME BUSY SELECT 5µs max. 0 min. ACKNOWLEDGE 10 µs max. 0.5 µs to 10 ms Nibble Mode Conforms to IEEE 1284 spec. ECP Mode Conforms to IEEE 1284 spec.

  • Page 172: Appendix B Rs-232C Serial Interface

    Appendix B RS-232C SERIAL INTERFACE 1) Connector • Printer side 25-pin receptacle Type 17LE-13250-27 (D4CC) (made by DDK) or equivalent • Cable side 25-pin plug Type 17JE-23250-02 (D8C) (made by DDK) Note: Plug shall be able to be fixed with a lock screw. 2) Cable •...
  • Page 173 5) Interface circuit a) Receiving circuit 75189 or equivalent OUTPUT INPUT +12V -12V INPUT b) Sending circuit 75188 or equivalent OUTPUT INPUT OUTPUT 45ns 55ns Note: The above signal level is for the case where 3KΩ x 15pF is being connected to the terminal.

  • Page 174: Appendix C Duplex Unit Maintenance

    Appendix C DUPLEX UNIT MAINTENANCE OUTLINE Functions DUPLEX UNIT is a unit, which is installed on the printer unit for controlling both-sided printing from the printer unit, intended for automatically reversing papers of which one side have been already printed and re-feeding them to the unit for printing other side. The main functions are the followings: •...

  • Page 175: Mechanism Description

    MECHANISM DESCRIPTION General Mechanicsm When the Duplex Unit receives an instruction for both-sided printing from the unit, the separator will be opened by the action of a solenoid within Duplex and the route will be shifted to the one into the Duplex after one-sided printing of papers, which are fed from the tray, are completed. At this time, as the roller (1) rotates in the direction of arrow A, a sheet is retracted in the rear of the cassette.

  • Page 176: Jam Release Mechanism

    JAM Release Mechanism The LEVER-Lock can be pulled outwards and the sheet route section of the Duplex opens by pulling out the cassette. This enables a jam to be released. Structurally, the LEVER-Release can be pushed up by back edge of cassette and the sheet route automatically close when the cassette is returned.

  • Page 177: Removing/Installing Duplex Unit

    Removing/Installing Duplex Unit Removing Duplex Unit (1) Power Off and remove the Paper-Cassette from 1st tray. (2) Remove the LEVER-Release (Dup) from the boss of the Hopping Frame. Boss LEVER-Release (Dup) Release Release LEVER-Release (Dup) B - B View (3) Rotate the LEVER-Lock (Dup) in the direction of the arrow to release the Lock. Connector LEVER-Lock (Dup) Turn...
  • Page 178 Installing Duplex Unit (1) Hold the LEVER-Lock (Dup) in horizontal lock position. Then insert the Duplex Unit along the groove, up to accord both rear faces between printer and Duplex Unit. Printer Note: Before setting it to the unit, make sure that the Groove LEVER-Release (Dup) is locked at the angle as...

  • Page 179: 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 (1) Parts replacements must be carried out, by first turning the printer power switch off “O”...
  • Page 180 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. 3-100 screwdriver No. 5-200 screwdriver Digital multimeter Pliers Handy cleaner Connector remover OKI P/N: 4PP4076-5395P1 180 / 40931201TH Rev. 4...

  • Page 181: Parts Layout

    Parts Layout This section describes the layout of the main components. Photo sensor Solenoid Assy Control board (Board-LEX) Motor Connector (IMSA-9714N-14A) Photo sensor 181 / 40931201TH Rev. 4...

  • Page 182: Parts Replacement Methods

    Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassem- bly order diagram below. Duplex Unit Board-LEX (3.3.1) Connector (3.3.2) Photo Sensor (3.3.3) Solenoid Assy (3.3.4) Motor (3.3.5) 182 / 40931201TH Rev. 4...

  • Page 183: Board-Lex

    3.3.1 Board-LEX (1) Remove two LEVER-Lock (DUP) 1 by rotating them in the arrow direction. (2) Unscrews five screws 2 to remove the bracket 3. (3) Unlatch all the nails and unplug all the connectors 4 to remove the Board-LEX 5. [Note : When installing the Board-LEX, install it, positioning earth plate over the PCB.] PLATE-Earth (F/R) 183 /...

  • Page 184: Connector (Imsa-9714N-14A)

    3.3.2 Connector (IMSA-9714N-14A) (1) Remove two LEVER-Release (DUP) 1. (2) Take away two SPRING-Support 2 to remove FRAME-MAIN (DUP) 3. (Remove the FRAME-MAIN (DUP) by lifting in up from A side) (3) Remove two STUD 4 to unplug the Connector (IMSA-9714N-14A) 5. 184 / 40931201TH Rev.

  • Page 185: Photo Sensor

    3.3.3 Photo Sensor (1) Remove the Frame-Main (DUP) (see section 3.3.2). (2) Release the lock to remove two SPRING-Lock (frame) 1 and two LEVER-Lock Assy 2. (3) Pull out four SHAFT-Pinch 3 and remove four ROLLER-Pinch 4 and eight SPRING-Pinch (u) 5.

  • Page 186: Solenoid Assy

    3.3.4 SOLENOID Assy (1) Remove the Frame-Main (DUP) (See section 3.3.2). (2) Release the lock to remove Two LEVER Sensor (F/R) 1 and two SPRING-Sensor (F/R) 2. (3) Unplug the Connection Code-Wire 3 and remove Photo Sensor 4. (4) Take away the SPRING-SL 5 and two screws 6 to remove SOLENOID Assy 7. View View 186 /...

  • Page 187: Motor

    3.3.5 Motor (1) Remove the Frame-Main (DUP) (See section 3.3.2). (2) Unscrew two screws 1 to remove PLATE-Earth (F/R) 2. (3) Unscrew three screws 3 to remove PLATE-Earth (F/R-2) 4. (4) Disengage the latch to remove the Bearing L 5 , GEAR-Z40S8 6 , Bearing 7and ROLLER- Feed (RV) 8.

  • Page 188: Troubleshooting

    TROUBLESHOOTING Precautions Prior to the Troubleshooting (1) Go through the basic checking items provided in the Operator Guide. (2) Obtain detailed information concerning the problem from the user. (3) Go through the checking in the conditions similar to that in which the problem occurred. Preparations for the Troubleshooting (1) Display on the Operator panel The status of the problem is displayed on the LCD (Liquid Crystal Display) on the Operator...

  • Page 189: 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 190: Troubleshooting Flow

    4.3.2 Troubleshooting Flow • (JAM error) Duplex INPUT JAM • Is the leading edge of paper is fed in the Duplex unit? • Has the leading edge of paper reached the Duplex In sensor • Yes Is the Duplex In sensor lever operating normally? •...
  • Page 191 Duplex FEED JAM1 • Is there a paper on the Duplex In sensor lever? • Is the Duplex In sensor operating normally? • Yes Is the connection cord between the Duplex In sensor and the Board- LEX connected properly? • Does the connection cord have a break? •...
  • Page 192 Duplex FEED JAM 3 • Has a paper reached the Duplex Front sensor? • Is the connection cord between the clutch and the Board-LEX properly? • Yes Replace the GEAR Assy. • YES END • No Replace the Board-LEX. • Connect the connection cord properly.

  • Page 193: Connection Diagram

    CLUTCH SOLENOID DUPINSENS BOARD-LEX INLET SENSOR PH1N PH1P MAIN PH2N MOTOR PH2P PAPERLOW FRONT SENSOR DUPLEX 12P to Printer Unit...

  • Page 194: Pcb Layout

    PCB Layout LEX-PCB 194 / 40931201TH Rev. 4...

  • Page 195: Parts List

    PARTS LIST 14 35 195 / 40931201TH Rev. 4...
  • Page 196 Table 6-1 Duplex Unit(1/2) Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 40658401 COVER-Upper(DUP)(Affix) 40339401 ROLLER-Pinch 40382201 SHAFT-Pinch 40393201 SPRING-Pinch(U) 40393202 SPRING-Pinch(U) 40393301 SPRING-Pinch(R) 40457701 BRACKET-Pinch(R) 40457801 SHAFT-Pinch(R) 40443801 LEVER-Lock Ass 40541501 SPRING-Lock(frame) 40541502 SPRING-Lock(frame) 40338701 LEVER-Sensor(D-IN) 40393601 SPRING-Sensor(D-IN) 4YB4120-1137P001 FX50 Photo Sensor 40598001 Core Assy.-DUPLEX...
  • Page 197 Table 6-1 Duplex Unit(2/2) Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 40483401 SOLENOID Ass 40395501 SPRING-SL 40382601 PLATE-Earth(F/R) 40322901 PLATE-Earth(F/R-2) 40382801 PLATE-Earth(BTM) NK2-12SUS Knock Pin RE4-SK E Ring 40339102 LEVER-Lock(DUP) # Color : Black 40338601 LEVER-Release(DUP) 40393701 SPRING-Support 40495804 Board-LEX Without ROM 40942601...

  • Page 198: Appendix D Second/ Third Paper Feeder Maintenance

    Appendix D SECOND/ THIRD PAPER FEEDER MAINTENANCE OUTLINE Functions This high capacity second/ third paper feeder, which is located under the printer, rotates the hopping motor according to the signal from the printer to supply papers to the printer automati- cally.

  • Page 199: Description Of Operartion

    DESCRIPTION OF OPERARTION Driving Mechanism The high-capacity second/ third paper feeder only a top paper which is set in the cassette by a signal from the printer. (1) Second paper feeder as an example is shown. First of all, the hopping motor rotates in the direction of arrow A. Roller C rotates by way of idle gear on the same shaft on which the hopping gear is placed.
  • Page 200 "Paper" Gear O (Engaging to gear P or planetary gear G) Gear J ( for timing belt) Roller K Roller C Hopping roller gear Planetary gear D Sub roller Gear D Sub roller gear Planetary gear G 2nd paper feeder Idle gear "Paper"...

  • Page 201: Hopper Mechanism

    Hopper Mechanism The hopper is a motion where papers are automatically sent into the printer one by one. When papers are set to the cassette, the feeding motion is activated by the hopping motor to send only a top paper which is caught on the brake shoe. Printer Roller feeder Hopping Roller...

  • Page 202: Parts Replacement

    PARTS REPLACEMENT In this section, the removing and installing procedure of assembly and unit in field are described. Although this section describes the removing procedure, the installing procedure is basically to conduct the removing one in reverse. Precautions Concerning Parts Replacement (1) Parts replacements must be carried out, by first turning the printer power switch off “O”...
  • Page 203 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. 3-100 screwdriver No. 5-200 screwdriver Digital multimeter Pliers Handy cleaner Connector remover OKI P/N: 4PP4076-5395P1 203 / 40931201TH Rev. 4...

  • Page 204: Parts Layout

    Parts Layout This section describes the layout of the main components. Case assy cassette Board BBB Frame side(R) assy Roller assy feed Roller assy hopping Cover front assy Frame side(L) assy 204 / 40931201TH Rev. 4...

  • Page 205: Parts Replacement Methods

    Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassembly order diagram below. High Capacity Second / ThirdPaper Feeder Roller assy hopping, Roller assy feed (3.3.1) Cover front assy (3.3.2) Board-BBB (3.3.3) Lever paper end, Lever paper near end (3.3.4) Motor (3.3.5) Connector (IMSA-9714N-14B), Connector (IMSA-9714N-14A) (3.3.6)

  • Page 206: Roller Assy Hopping, Roller Assy Feed

    3.3.1 Roller assy hopping, Roller assy feed (1) Remove the Case assy cassette 1. (2) Disengage latchs to remove the Roller assy hopping 2. (3) Disengage latchs to remove the Roller assy feed 3. 206 / 40931201TH Rev. 4...

  • Page 207: Cover Front Assy

    3.3.2 Cover front assy (1) Unscrew two screws 1 to remove the Cover front assy 2. 207 / 40931201TH Rev. 4...

  • Page 208: Board-Bbb

    3.3.3 Board-BBB (1) Unscrew a screw 1 to remove the PCB cover bracket 2. (2) Take away all connectors 3 and three screws 4 to remove the Board-BBB 5. 208 / 40931201TH Rev. 4...

  • Page 209: Lever Paper End, Lever Paper Near End

    3.3.4 Lever paper end, Lever paper near end (1) Unscrew five screws 1 to remove roller cover bracket 2 and PLATE-Earth (L) 3. (2) Disengage latches to remove the Lever paper end 4 and Lever paper near end 5. 209 / 40931201TH Rev.

  • Page 210: Motor

    3.3.5 Motor (1) Remove the Cover front assy (See section 3.3.2). (2) Remove the PCB cover bracket (See section 3.3.3). (3) Remove the roller cover bracket (See section 3.3.4). (4) Unscrew seven screws 1 to remove the bottom bracket 2. (5) Unscrew five screws 3 to remove the Frame side (L) assy 4 and Frame side (R) 5.

  • Page 211: Connector (Imsa-9714N-14B), Connector (Imsa-9714N-14A)

    3.3.6 Connector (IMSA-9714N-14B), Connector (IMSA-9714N-14A) (1) Remove the Motor (See section 3.3.5). (2) Unscrew two screws 1 to remove Connector (IMSA-9714N-14B) 2 and Plate-Earth (FR) 4. (3) Unscrew two screws 4 to remove the connector (IMSA-9714N-14A) 5. 211 / 40931201TH Rev. 4...

  • Page 212: Frange Pulley, Pulley Idle, Mini Pitch Belt, Plate Earth Shaft, Gear Double, Tray Switch Assy

    3.3.7 Frange pulley, pulley Idle, Mini pitch belt, Plate Earth shaft, Gear double, Tray switch assy (1) Remove the Motor (See section 3.3.5). (2) Remove the Connector (See section 3.3.6). (3) Unscrew two screws 1 to remove the motor bracket 2. (At this time, the Mini pitch belt 3 and Gear double 4 can be removed simultaneously.) (4) Disengage latchs to remove the Frange pulley 5 and pulley Idle 6.

  • Page 213: Roller Feed

    3.3.8 Roller feed (1) Remove the Motor (See section 3.3.5). (2) Remove the Connector (See section 3.3.6). (3) Remove the motor bracket (See section 3.3.7). (4) Disengage latchs to remove the Feeding bearing 1. (5) Disengage latchs to remove the Pulley feed 2. (At this time, the Gear feed 3 and Bush 4 can be removed simultaneously.) (6) Remove the Roller feed 5.

  • Page 214: Bracket Sub Roller

    3.3.9 Bracket sub roller (1) Remove the Roller assy hopping and Roller assy feed. (See section 3.3.1). (2) Remove the Roller feed (See section 3.3.8). (3) Unscrew a screw 1 to remove the Bracket joint 2 , Spring joint 3 and Gear joint 4. (4) Take away the E-ring 5 to remove the Gear hopping 6.

  • Page 215: 3.3.10 Frame Side (L) Assy

    3.3.10 Frame side (L) assy (1) Remove the Frame side (L) assy (See section 3.3.5). (2) Remove the Plate Earth (BL) 1. (3) Take away the Spring 2 to remove the Cassette stopper 3. (4) Take away the Spring sheet 4 to remove the Pull block 5. (At this time, Lever link 6 can be removed simultaneously.) (5) Unscrew a screw 7 to remove the Link support 8.

  • Page 216: 3.3.11 Frame Side (R) Assy

    3.3.11 Frame side (R) assy (1) Remove the Frame side (R) assy (See section 3.3.5). (2) Remove the Plate Earth (BR) 1. (3) Take away the Spring 2 to remove the Cassette stopper 3. (4) Take away the Spring sheet 4 to remove the Pull block 5. (At this time, Lever link 6 can be removed simultaneously.) (5) Unscrew a screw 7 to remove the Link support 8.

  • Page 217: Troubleshooting

    TROUBLESHOOTING Precautions Prior to the Troubleshooting (1) Go through the basic checking items provided in the Operator Guide. (2) Obtain detailed information concerning the problem from the user. (3) Go through the checking in the conditions similar to that in which the problem occurred. Preparations for the Troubleshooting (1) Display on the Operator panel The status of the problem is displayed on the LCD (Liquid Crystal Display) on the Operator...

  • Page 218: 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 219: Troubleshooting Flow

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

  • Page 220: Connection Diagram

    CONNECTION DIAGRAM Interconnection Diagram 220 / 40931201TH Rev. 4...

  • Page 221: Pcb Layout

    Paper near end sensor Motor driver SIZE MOTOR TRAY Paper end sensor...

  • Page 222: Parts List

    PARTS LIST 13(Included 2-9) 44 46 41 47 2(Included 2-9) 222 / 40931201TH Rev. 4...
  • Page 223 Table 6-1 High Capacity Second/ Third Paper Feeder (1/2) Reccomended Q’ty Parts No. Name Q’ty/U Remarks 1000 40346701 Frame side(L)assy 40488701 Guide cassette L For Maintenance 4PP4122-1217P001 Pull block 40349102 Lever link(Caulking) 4PP4076-5358P001 Link support 40928101 Spring-Sheet 4PP4076-5359P001 Cassette stopper 4PP4043-4526P001 Spring 4PB4016-1960P002...
  • Page 224 Table 6-1 High Capacity Second/ Third Paper Feeder (2/2) Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 4PP3522-3568P001 ADF bearing 40433701 Bracket sub roller(Cauking) 40317701 Gear planet(z28) 40358101 Plate planet 40367101 Bracket spring(sub) 40928201 Spring sub roller 40317601 Gear z38 40385901 Lever release assy 40363301...

  • Page 225: Appendix E Multi Feeder Maintenance

    Appendix E MULTI FEEDER MAINTENANCE OUTLINE Functions This Multi Feeder is installed on the front section of the printer, and it supplies paper automatically through the operation of hopping motor, which is driven by signals sent from the printer. The main functions are the followings: •...

  • Page 226: Mechanism Description

    MECHANISM DESCRIPTION General Mechanism The sheet (or envelope) at the very bottom of the stack is fed into the printer, one at a time, when the Multi Feeder receives the signal from the printer. (1) First, the hopping motor rotates in the direction of arrow D. The planet gear F moves to the direction of arrow G, and drives rollers A and B.

  • Page 227: 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 (1) Parts replacements must be carried out, by first turning the printer power switch off “O”...
  • Page 228 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. 3-100 screwdriver No. 5-200 screwdriver Digital multimeter Pliers Handy cleaner Connector remover OKI P/N: 4PP4076-5395P1 228 / 40931201TH Rev. 4...

  • Page 229: Parts Layout

    Parts Layout This section describes the layout of the main components. Hopping cover Hopping motor Upper cover Control board (AOLE-PCB) Planet gear Roller (A) Separator Sensor lever Roller (B) 229 / 40931201TH Rev. 4...

  • Page 230: Parts Replacement Methods

    Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassembly order diagram below. Multi Feeder Separator (3.3.1) AOLE-PCB (3.3.2) Square-shaped connector (3.3.3) Hopping motor (3.3.4) Planet gear (3.3.5) Roller B (3.3.6) Roller A (3.3.7) Mini pitch belt &...

  • Page 231: Separator

    3.3.1 Separator (1) Turn the printer power off and remove the Multi Feeder. (2) Disengage the link and hopper cover. (3) Remove two screws 1, disengage two locks of the upper cover 2 using a flat-head screwdriver, and remove the upper cover 2. (4) Remove two pan-head screws 3 and remove the cover frame 4.

  • Page 232: Aole-Pcb

    3.3.2 AOLE-PCB (1) Remove the upper cover (see 3.1.1 (1) to (3)). (2) Remove two screws 1 and remove the AOLE-PCB 2. (3) Remove the connector 3. (4) Remove the connector 4. Caution: Be careful to set the sensor plate properly when mounting AOLE-PCB. Sensor plate 232 / 40931201TH Rev.

  • Page 233: Square-Shaped Connector

    3.3.3 Square-shaped connector (1) Remove the upper cover and remove the cover frame 5 (see 3.3.1 (1) to (4)). (2) Remove the AOLE-PCB (see 3.3.2). (3) Remove the screw 1 and remove the square-shaped connector 2. (4) Using the connector remover, remove the nylon cord 3 from the square-shaped connector [Confirmation after assembly] 1.

  • Page 234: Hopping Motor

    3.3.4 Hopping Motor (1) Remove the upper cover (see 3.3.1 (1) to (3)). (2) Remove the AOLE-PCB. (see 3.3.2) (3) Remove two screws 1, then remove the hopping motor 2. 234 / 40931201TH Rev. 4...

  • Page 235: Planet Gear

    3.3.5 Planet gear (1) Remove the upper cover (see 3.3.1 (1) to (3)). (2) Remove the AOLE-PCB (see 3.3.2). (3) Remove two screws 1, then remove the motor bracket assy 2 and the planet gear 3. 235 / 40931201TH Rev. 4...

  • Page 236: Roller B

    3.3.6 Roller B (1) Remove the upper cover (see 3.3.1 (1) to (3)). (2) Disengage the plate and frame (on both sides). (3) Remove the separator assy (see 3.3.1 (4) to (5)). (4) Remove the AOLE-PCB (see 3.3.2). (5) Remove the motor bracket assy (see 3.3.5). (6) Remove the gear 1.

  • Page 237: Roller A

    3.3.7 Roller A (1) Remove the motor bracket assy (see 3.3.5). (2) Remove two gears 1 and then another gear 2. (3) Disengage the plate 3 and the frame 4. (4) Remove four screws 5 and remove the frame 4 (see 3.3.6). (5) Move the belt to the right and remove it from the one-way pulley 6.

  • Page 238: Mini Pitch Belt & Feed Roller

    3.3.8 Mini pitch belt & Feed roller (1) Remove the roller A (see 3.3.7). (2) Remove the bearing 1 and remove the feed roller assy 2. (3) Remove two bearings 3 and remove the plate 4. (4) Remove the mini pitch belt 5 and the feed roller 6. 238 / 40931201TH Rev.

  • Page 239: Troubleshooting

    TROUBLESHOOTING Precautions Prior to the Troubleshooting (1) Go through the basic checking items provided in the Operator Guide. (2) Obtain detailed information concerning the problem from the user. (3) Go through the checking in the conditions similar to that in which the problem occurred. Preparations for the Troubleshooting (1) Display on the operator panel The status of the problem is displayed on the LCD (Liquid Crystal Display) on the operator...

  • Page 240: Lcd Status Message List

    4.3.1 LCD Status Message List The listing of the statuses and problems displayed in the form of messages on the LCD is provided in Table 4-1. Table 4-1 Classification LCD Status Message Description Recovery method Jam error Notifies of occurrence of •...

  • Page 241: Troubleshooting Flow

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

  • Page 242: Connection Diagram

    CONNECTION DIAGRAM Interconnection Diagram Pulse motor 2 M-T3 1 M-T4 4 M-T1 3 M-T2 AOLE - PCB To the Printer PCB Layout AOLE-PCB SEN2 242 / 40931201TH Rev. 4...

  • Page 243: Parts List

    PARTS LIST 243 / 40931201TH Rev. 4...
  • Page 244 Table 6-1 Multi Feeder Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 4PP4083-5544G001 Separator 3PB4083-5514P001 Roller-A 4PP4083-5520P001 Planet gear 4PB4083-6075P001 Hopping motor 3PB4083-5524P001 Roller-C 4PB4043-4614P001 One-way pulley 4LP-1313-338 Mini pitch belt 4PB4043-4743P001 Roller-B 4YA4046-1647G011 AOLE-PCB 2201000P0141 Connector(IMSA-9714N-14B) 4YS4011-4448P004 Nylon connector cord 4PP4083-2394P001 Stirrer roller gear 244 / 244...

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