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Oki OKIPAGE24DX Maintenance Manual

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OKIPAGE24DX / OKIPAGE24dx
LED Page Printer

Maintenance Manual

ODA/ OEL/ INT
1998.12.22 DRAFT Version
1 / 237
40930701TH DRAFT Version

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Summary of Contents for Oki OKIPAGE24DX

  • Page 1: Maintenance Manual

    OKIPAGE24DX / OKIPAGE24dx LED Page Printer Maintenance Manual ODA/ OEL/ INT 1998.12.22 DRAFT Version 1 / 237 40930701TH DRAFT Version...
  • Page 2 PREFACE This maintenance manual describes the field maintenance methods for OKIPAGE24DX/OKIPAGE24dx. 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. 40930701TH DRAFT Vesion...

  • 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-FFF) ................16 Power Supply Unit .....................
  • Page 4 3.3.27 Power supply unit ..................86 3.3.28 Lever-Paper end & Lever-Paper near end ........... 87 3.3.29 Guide Assy-Cassette (L) ................89 3.3.30 Guide Assy-Cassette (R) ................90 3.3.31 Removing/Installing Duplex Unit ..............92 3.3.32 Board-LEX ....................94 3.3.33 Connector (IMSA-9714N-14A) ..............95 3.3.34 Photo Sensor ....................
  • Page 5 CENTRONICS PARALLEL INTERFACE ........185 PPENDIX RS-232C SERIAL INTERFACE ........... 189 PPENDIX SECOND/ THIRD PAPER FEEDER MAINTENANCE ....191 PPENDIX OUTLINE ........................191 Functions ...................... 191 Appearance and Parts Name ............... 191 Description of operartion .................... 192 Driving Mechanism ..................192 Hopper Mechanism ..................
  • Page 6 Parts Replacement Methods ................ 223 3.3.1 Separator ..................224 3.3.2 AOLE-PCB ..................225 3.3.3 Square-shaped connector ............... 226 3.3.4 Hopping Motor ................. 227 3.3.5 Planet gear ..................228 3.3.6 Roller B ................... 229 3.3.7 Roller A ................... 230 3.3.8 Mini pitch belt & Feed roller ............. 231 TROUBLESHOOTING ....................

  • Page 7: Configuration

    Parallel interface Toner Cartridge DC Fan (Bidirection) Front Feeder LED head RS-232C Motor-Main Serial I/F Hopping motor LAN etc. OKI HSP Paper tray interface board (Option) Paper size detection switch Extension D-RAM SIMM (Option) High Capacity Second Paper Multi Feeder...

  • 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 • Duplex Unit Figure 1-2 shows the printer unit configuration. Plate-Shield Cover-Side(I/F) Frame-OP panel Assy Stacker Assy Cover-Frame Face-up stacker Assy...

  • Page 9: Optional Configuration

    Optional Configuration The options below are available for use with OKIPAGE24DX / OKIPAGE24dx. They are sold separately from the printer unit. (1) Multi Feeder (2) Second/ Third Paper Feeder (3) D-RAM SIMM module (72 pin SIMM, 16 MB/32 MB, EDO SIMM type) See 7.2 (1) for where to install.
  • Page 10 (4) Flash ROM module (72 pin SIMM, 4MB/8MB) See 7.2 (1) for where to install. 10 / 40930701TH DRAFT Vesion...

  • 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 21.3 kg (47 lbs) (4) Development method Dry electrophotography Exposure method LED stationary head (5) Paper used <Type>...
  • Page 12 (12) Temperature and humidity In operation Power off mode During Storage Unit Temperature 50 - 90 32 - 110 14 - 110 (10 - 32) (0 - 43) (–10 - 43) ( C) Humidity 20 - 80 10 - 90 10 - 90 80.4 Maximum wet...

  • 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 OKIPAGE24DX / OKIPAGE24dx 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 MAIN BOARD (BOARD-FFF) FLASH ROM Module DUPLEX unit PS ROM MULTI feeder 2nd tray 3rd tray PCL ROM Paper end sensor Extension DRAM Module Paper near end sensor Tray size BOARD PXC sensor board DRAM Clutch for TRANSISTOR Regist Roller Centronics Driver Receiver...

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

    Main Control Board (BOARD-FFF) 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, 120-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 Figure 2-5 25 / 40930701TH DRAFT Vesion...
  • 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

    2.4.3 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 Duplex Unit 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 Front Hopping Shaft...
  • 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 (10) Duplex unit 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.

  • Page 39: 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 40 Read of correction data 40 / 40930701TH DRAFT Vesion...
  • Page 41 (ii) Transfer of correction data to head driver correction data 41 / 40930701TH DRAFT Vesion...
  • Page 42 (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 43 (i) Read of correction data 43 / 40930701TH DRAFT Vesion...
  • Page 44 (ii) Transfer of correction data to head driver correction data 44 / 40930701TH DRAFT Vesion...
  • Page 45 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 46 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 47: 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 48: 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 49: 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 50: Toner Full State

    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 51: 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 52: 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 53 [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 54: Parts Layout

    Parts Layout Plate-Shield Cover-Side(I/F) Frame-OP panel Assy Face-up stacker Assy Cover-Frame ROLLER-Transfer Cover-Rear Main Control Board (Board-FFF) Cover-Side(R) Contact Assy Manual Feed Assy Cover-Side(L) Assy Base Unit CASE Assy-Cassette Figure 3-1 54 / 40930701TH DRAFT Vesion...
  • Page 55 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 55 / 40930701TH DRAFT Vesion...
  • Page 56 Power Supply Unit FRAME Assy-Hopping (120V/230V) Power Supply Unit (High Voltage) ROLLER Assy-Feed FILM-Insulation Board PXC GUIDE Assy-Cassette(L) GUIDE Assy-Cassette(R) PLATE-Bottom Figure 3-3 56 / 40930701TH DRAFT Vesion...
  • Page 57 Photo sensor Solenoid Assy Control board (Board-LEX) Motor Connector (IMSA-9714N-14A) Photo sensor Figure 3-4 57 / 40930701TH DRAFT Vesion...

  • Page 58: How To Change Parts

    How to Change Parts This section explains how to change parts and assemblies appearing in the disassembly diagram below. 58 / 40930701TH DRAFT Vesion...

  • Page 59: 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 60: 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 60 / 40930701TH DRAFT Vesion...

  • Page 61: 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. 61 / 40930701TH DRAFT Vesion...

  • Page 62: 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. 62 / 40930701TH DRAFT Vesion...

  • Page 63: Board-Fff

    3.3.5 Board-FFF (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 16 screws 3 and remove plate-shield 4. (4) Unscrew 3 screws 5 and 2 screws 6, unplug all the connectors 7 , and remove Board-FFF 63 / 40930701TH DRAFT Vesion...

  • Page 64: 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-FFF. [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 65: 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 66: 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 67: 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. 67 / 40930701TH DRAFT Vesion...

  • Page 68: 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 69: 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. 69 / 40930701TH DRAFT Vesion...

  • Page 70: 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 71 Latch View A View A 71 / 40930701TH DRAFT Vesion...

  • Page 72: 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 73: 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. •...

  • Page 74: 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. Be careful not to deform (a) part of the plate-FG (BK) 3.

  • Page 75: 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. 75 / 40930701TH DRAFT Vesion...

  • Page 76: 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. 76 / 40930701TH DRAFT Vesion...

  • Page 77: 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 78: 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. 78 / 40930701TH DRAFT Vesion...

  • Page 79: 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 80: 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.

  • Page 81: 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 82: 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 83: 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 84: 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 85: 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 86: System Maintenance Mode

    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 87 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 88: Engine Maintenance Mode

    88 / 40930701TH DRAFT Vesion...

  • Page 89: 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 90: 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 91 91 / 40930701TH DRAFT Vesion...

  • Page 92: Removing/Installing Duplex Unit

    3.3.31 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.

  • Page 93: Adjustment When Replacing A Part

    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 Groove Note: Before setting it to the unit, make sure that the LEVER-Release (Dup) is Duplex Unit locked at the angle as...

  • Page 94: Board-Lex

    3.3.32 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) 94 /...

  • Page 95: Connector (Imsa-9714N-14A)

    3.3.33 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) Unscrew two screws 4 to unplug the Connector (IMSA-9714N-14A) 5. 95 / 40930701TH DRAFT Vesion...

  • Page 96: Photo Sensor

    3.3.34 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 97: Solenoid Assy

    3.3.35 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 97 /...

  • Page 98: Motor

    3.3.36 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 99: 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 100: 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 101: 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 102: 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 103 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 MANUALFEEDER) Cassette tray (T1; TRAY 1, T2; TRAY 2, T3; TRAY 3) mmmmmmmmm: Paper size in the tray being selected (LETTER, EXECUTIVE, LEGAL 14, LEGAL 13,A4 SIZE, A5 SIZE, A6 SIZE, B5 SIZE, COM-10,MONARCH, COM-9, DL ENV, C5 ENV, C4...
  • Page 104 Category LCD status message Trouble or status Remedy Daily status Normal operation Indicate that the printer is printing. 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 Mean that, in shifting to off line in data-remaining state, if you want to...
  • Page 105 Category LCD status message Trouble or status Remedy Daily status Informs that the amount of toner low Replace the toner cartridge. READY This is indicated in combination with other messages of the first line. TONER LOW Normal operation is possible. ATTENTION But when "LOW TONER= OFF"...
  • Page 106 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 107 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 Repair the broker stacker sensor cable. STACKER FULL Repeat the insertion and removal of the connector. REMOVE THE PAPER Clean or replace the stacker full sensor.
  • Page 108 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 109 Category LCD status message Trouble or status Remedy Daily status Informs that, in feeding papers from tray n to the Duplex unit, a jam Remove all of the paper in the printer. READY occurs in the separator or Duplex unit, by monitoring OUTSNS ON ~ Open the cover, then close it to perform recovery printing DUPLEX INPUT JAM DUP INSNS ON.
  • Page 110 REMOVE THE PAPER If the error occurs frequently, see chapter 6.5.2 ATTENTION 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 111 Category LCD READY Trouble or status Remedy ATTENTION message Controller Light off Flash A fault occurred in the printer. ERROR CONTROLLER error nn-aaaaaaaa Turn the power off, then on to release the error display. If the error display cannot be released by this procedure, call a service person. Code Error Remedy...
  • Page 112 Category LCD READY Trouble or status Remedy ATTENTION message Controller error Code Error Remedy (nn) A fault occurred in the fuser. See chapter 6.5.2. Thermistor open error Thermistor short error See chapter 6.5.2. SSIO error Toner sensor error Check the operation of the toner sensor lever. Relace the Power Supply Unit (High Voltage) Replace the main board.
  • Page 113 Category LCD READY Trouble or status Remedy ATTENTION message Light off Flash An error occurred in the controller. Proccesor ERROR CONTROLLER nn-aaaaaaaa n = ( 1) Exception Code aaaaaaaa = Error address error Exception Error code – Turn the power off, then on. Reserved –...

  • Page 114: 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) Note: When replacing the Main board, install the EEPROM from the old Main board, onto the new Main board.

  • Page 115: 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 116 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 117 STKFULL HEAD2 HEAD1 IC31 IC30 SIZE POWER POWER CONNECTOR Main control board (BOARD-FFF) Figure 6-1 Connector and Pin Location INLET Figure 6-2 Measurement by a Multimeter 136 / 40930701TH DRAFT Vesion...
  • Page 118 25 26 PC501 Figure 6-3 Connector and Pin Location 137 / 40930701TH DRAFT Vesion...

  • Page 119: 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 120: 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 121: 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 122 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 123 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 124: 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 125: Duplex Input Jam

    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? • Is the connection cord between the Duplex In sensor and the Board-LEX connected properly? •...
  • Page 126 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 127 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 128: 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 129 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 k at room temperature, 25 C) (See Chapter 7.3 for the measuring points.) •...
  • Page 130 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 k (25 C) between pins 1 and 2, 1.5 (120 V) and 5.8...
  • Page 131 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.) •...
  • Page 132 Message cannot be received through the parallel interface. • Is the parallel I/F ENABLE in "HOST I/F" item of Menu 1. • Set the Parallel I/F to "ENABLE". • Is the host set to the bidirectional communication? • Set the parallel I/F to the bidirectional communication enable state (DISABLE ENABLE) in menu level 2.
  • Page 133 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 134: 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 135: 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 136 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 137 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 138 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 139: 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 140: Print Voids

    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 Volt- age) properly and the shaft of the transfer roller. •...

  • Page 141: 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 142 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 143: 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 144 Figure 6-5 163 / 40930701TH DRAFT Vesion...
  • Page 145 Figure 6-6 164 / 40930701TH DRAFT Vesion...

  • Page 146: Wiring Diagram

    WIRING DIAGRAM Interconnect Signal Diagram HEAD PAPERSNS INSNS DATA OUTSNS THERMCHK INSNS FANON FANALARM STKFULL FANALARM OUTSNS COVEROPEN HEATTON PAPERSNS SIZE3 SIZE2 SIZE1 SIZE0 PANEL FRONT ENVELOPE 2NDTRAY MOTOR 165 / 40930701TH DRAFT Vesion...
  • Page 147 CLUTCH SOLENOID DUPINSENS BOARD-LEX INLET SENSOR PH1N PH1P MAIN PH2N MOTOR PH2P PAPERLOW FRONT SENSOR DUPLEX 12P to Printer Unit...

  • Page 148: Pcb Layout

    PCB Layout Main board (BOARD-FFF) RS232C CENT (EVEN0) (ODD0) (EVEN1) (ODD1) (EVEN) (ODD) MUPIS DRAM DRAM FSIMM1 SIMM1 SIMM2 MAIN IC19 HOPPING PANEL FRONT ENVELOPE MOTOR 2NDTRAY 167 / 40930701TH DRAFT Vesion...
  • Page 149 Power supply board (AC120V/230V) PC501 Power supply board (High voltage) 168 / 40930701TH DRAFT Vesion...
  • Page 150 LEX-PCB FSENS INSENS CLUTCH Flash ROM module (BOARD-FSL or BOARD-FSL-2) ROM1 ROM0 EEPROM 169 / 40930701TH DRAFT Vesion...

  • Page 151: Resistance Check

    Unit Circuit Diagram Illustration Resistance Between pins 1 and 2: 3.1 Yellow Motor-Main Between pins 3 and 4: 3.1 Blue Orange Thermostat to "CN2" connector Heater on the Power Supply Unit (AC120V or 230V) Between pins 1 and 2: 220k (at 25 C) Between pins 3 and 4: 1.5 (120V) Fusing Unit...
  • Page 152 171 / 40930701TH DRAFT Vesion...

  • Page 153: Program/Font Rom Location

    Program/Font ROM Location In case of EP ROM or OTP ROM STKFULL HEAD2 HEAD1 IC31 Note IC30 SIZE POWER Note: short plug (TA1) setting setting: 1pin–2pin 40439501 3 pin 1 pin 40439601 40439701 40439801 172 / 40930701TH DRAFT Vesion...
  • Page 154 In case of MASK ROM STKFULL HEAD2 HEAD1 IC31 Note IC30 SIZE POWER Note: short plug (TA1) setting setting: 2pin–3pin *** : 075 or 080 MX23C2410PC-10-*** 3 pin 1 pin *** : 074 or 079 MX23C2410PC-10-*** 173 / 40930701TH DRAFT Vesion...

  • Page 155: Parts List

    PARTS LIST Figure 8-1 Printer Unit 174 / 40930701TH DRAFT Vesion...
  • Page 156 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 40304506 Frame-OP panel Ass. (ODA) 40304503 Frame-OP Panel Ass. (OEL) 40304507 Frame-OP panel Ass. (INT) 2381002P0007 SMCD6X280BDX10(BL) 2PA4128-1074G001...
  • Page 158 Table 8-2 Frame-Main Unit (1/2) Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 40596901 FRAME Assy-Main For Maintenance 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...
  • Page 159 Table 8-2 Frame-Main Unit (2/2) Reccomended Q'ty Parts No. Name Q'ty/U Remarks 1000 40299501 GEAR-Idle G 40299601 GEAR-Idle H 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...
  • Page 160 Figure 8-3 Base Unit 179 / 40930701TH DRAFT Vesion...
  • Page 161 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 Rink Support 40928101 Spring-Sheet 4PP4076-5359P001 Cassette Stopper 4PP4043-4526P001 Pressure Coil Spring 40445601 Earth Plate L 40377701...
  • Page 162 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 163 14 35 Figure 8-4 Duplex Unit 182 / 40930701TH DRAFT Vesion...
  • Page 164 Table 8-4 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...
  • Page 165 Table 8-4 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...

  • Page 166: 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 167 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 3.3K 560pF INPUT PRIME 3.3K 0.001 F DATA BIT-1 to 8 R3=3.3K...
  • Page 168 6) Timing charts Compatible mode a) Data receiving timing PARALLEL DATA (DATA BITs 1 to 8) 0.5 s min. 0.5 s min. 0.5 s min. DATA STOROBE 0.5 s min. 0 min. 0.5 s max. BUSY 0 min. 0 min. ACKNOWLEDGE 0.5 s to 10 s 0 min.
  • Page 169 d) INPUT PRIME timing (when set to the effective INPUT PRIME signal) 50 s min. INPUT. PRIME BUSY SELECT 5 s max. 0 min. ACKNOWLEDGE 10 s max. 0.5 s to 10 ms Nibble Mode Conforms to IEEE 1284 spec. ECP Mode Conforms to IEEE 1284 spec.

  • Page 170: Appendix Brs-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 171 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 3K x 15pF is being connected to the terminal.

  • Page 172: Appendix Csecond/ Third Paper Feeder Maintenance

    Appendix C 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 173: 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 174 "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 175: 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 176: 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 177 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 196 / 40930701TH DRAFT Vesion...

  • Page 178: 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 197 / 40930701TH DRAFT Vesion...

  • Page 179: 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 180: 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. 199 / 40930701TH DRAFT Vesion...

  • Page 181: Cover Front Assy

    3.3.2 Cover front assy (1) Unscrew two screws 1 to remove the Cover front assy 2. 200 / 40930701TH DRAFT Vesion...

  • Page 182: 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. 201 / 40930701TH DRAFT Vesion...

  • Page 183: 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. 202 / 40930701TH DRAFT Vesion...

  • Page 184: 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 185: 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) (3) Unscrew two screws 4 to remove the connector (IMSA-9714N-14A) 5. 204 / 40930701TH DRAFT Vesion...

  • Page 186: 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 187: 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 188: 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 189: 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 190: 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 191: 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 192: 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 according to the LCD the LCD message troubleshooting Status Message List according to the (see 4.3.1) Troubleshooting Flow (see 4.3.2) 4.3.1...

  • Page 193: 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 194: Connection Diagram

    CONNECTION DIAGRAM Interconnection Diagram to PRINTER UNIT / 2nd TRAY 2nd tray/ 3rd BOARD-PXC tray auto setting switch CN11 6P TRAY 6P SIZE 6P MAIN2 7P MOTOR 4P BOARD-BBB MAIN1 7P to 3rd TRAY 213 / 40930701TH DRAFT Vesion...

  • Page 195: Pcb Layout

    PCB Layout BBB-PCB 214 / 40930701TH DRAFT Vesion...

  • Page 196: Parts List

    PARTS LIST 13(Included 2-9) 44 46 41 47 2(Included 2-9) 215 / 40930701TH DRAFT Vesion...
  • Page 197 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 198 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 199: Multi Feeder Maintenance

    Appendix D 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 200: 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 201: 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 202 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 221 / 40930701TH DRAFT Vesion...

  • Page 203: 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) 222 / 40930701TH DRAFT Vesion...

  • Page 204: 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 205: 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 206: 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 225 / 40930701TH DRAFT Vesion...

  • Page 207: 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 208: 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. 227 / 40930701TH DRAFT Vesion...

  • Page 209: 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. 228 / 40930701TH DRAFT Vesion...

  • Page 210: 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 211: 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 212: 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. 231 / 40930701TH DRAFT Vesion...

  • Page 213: 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 214: 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 215: 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 216: 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 235 / 40930701TH DRAFT Vesion...

  • Page 217: Parts List

    PARTS LIST 236 / 40930701TH DRAFT Vesion...
  • Page 218 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 237 / 237...

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