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Page 2: Copyright
300 dpi, which is ideal for printing, but does not display well on most displays. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 3: Table Of Contents
Table of Contents Page Service Manual - OKIPAGE20 0 Introduction Copyright Preface 1 Configuration 1.1 System Configuration 1.2 Printer Configuration 1.3 Optional Configuration 1.4 Specification 1.5 Safety Standards ..1.5.1 Certification Label ..1.5.2 Warning label 2 Operation Description 2.0 Operation Description 2.1 Main Control Board (BOARD-AAA) 2.2 Power Supply Unit 2.3 Electro-photographic Process...
Page 4 Table of Contents Page ..3.3.12 Motor -Main ..3.3.13 Guide Assy-Eject ..3.3.14 Heat Assy ..3.3.15 Roller feed (C) ..3.3.16 Roller Assy-BK ..3.3.17 Roller Assy-Feed ..3.3.18 LED Head ..3.3.19 Paper cassette, ROLLER Ass-Feed, ROLLER-Assy-Hopping ..3.3.20 Frame Assy-Separation ..3.3.21 Transfer Roller/TR Gear/TR Bearing ..3.3.22 EP lock shaft ..3.3.23 LEVER Assy- Out Sensor ..3.3.24 Toner sensor lever...
Page 5 Table of Contents Page ..6.5.1 LCD status message/trouble list ..6.5.2 LCD message troubleshooting ..6.5.3 Image troubleshooting 7 Wiring Diagram 7.1 Interconnect Signal Diagram 7.2 PCB Layout 7.3 Resistance Check 7.4 Program/Font ROM Location 8 Parts List Figure 8-1 Printer Unit Table 8-1 Printer Unit Figure 8-2 Frame-Main Unit Table 8-2 Frame-Main Unit...
Page 6 Table of Contents Page ..5.2 PCB Layout 6.0 Parts List Table 6-1 Duplex Unit D Second / Third Paper Feeder 1.0 Outline ..1.1 Functions ..Appearance and Parts Name 2.0 Description of operation ..2.1 Driving Mechanism ..2.2 Hopper Mechanism 3.0 Parts Replacement ..3.1 Precautions Concerning Parts Replacement ..3.2 Parts Layout ..3.3 Parts Replacement Methods...
Page 7 Table of Contents Page 3.0 Parts Replacement ..3.1 Precautions Concerning Parts Replacement ..3.2 Parts Layout ..3.3 Parts Replacement Methods ..3.3.1 Separator ..3.3.2 AOLE-PCB ..3.3.3 Square-shaped connector ..3.3.4 Hopping Motor ..3.3.5 Planet gear ..3.3.6 Roller B ..3.3.7 Roller A ..3.3.8 Mini pitch belt & Feed roller 4.0 Troubleshooting ..4.1 Precautions Prior to the Troubleshooting ..4.2 Preparations for the Troubleshooting...
Page 8: Specification
AppleTalk is a registered trademark of Apple Computer, Inc. LocalTalk is a trademark of Apple Computer, Inc. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 9 This handbook was written for use by maintenance personnel. Note, however, that the user should refer to the USER'S MANUAL for operating instructions for the equipment. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 10 The OKIPAGE20 Series printers consist of control and engine blocks as the standard configuration (See Figure 1-1.) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 11 Electro-photographic processor Paper feeder Controller Operator panel Power/sensor board Figure 1-2 shows the printer unit configuration. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 12 Page: 5 Service Manual - OKIPAGE20 Chapter 1 Configuration The options below are available for use with the OKIPAGE20 Series Printer. They are sold separately from the printer unit. (1) Multi Feeder (2) Second / Third Paper Feeder (3) DUPLEX Unit (4) Flash ROM module (72 pin SIMM, 4MB/8MB)
Page 13 (5) PostScript ROM module (72pin SIMM) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 14 Page: 6 Service Manual - OKIPAGE20 Chapter 1 Configuration Type Desktop External dimensions (excludes Height 13.0" (331 mm) protruding portion) Width 14.4" (336 mm) Depth 18.2" (378 mm) Weight 42 lbs. (19 kg) If Installed Duplex 47 lbs. (21.3 kg) Developing method Dry electrophotography Exposing method...
Page 15 Printing speed First print: 8 sec. Continuous printing: 20 sheets/min. [at duplex print: 10 sheet/min.] Warm-up time: 90 seconds, [at room temperature 77 C), and rated voltage (120 VAC)] Paper feeding method Automatic feed or manual feed Paper delivery method Face down/face up Resolution 600 x 600 dots/inch...
Page 17: Certification Label
Page: 7 Service Manual - OKIPAGE20 Chapter 1 Configuration 1.5.1 Certification label 1.5.2 Warning label Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 18 Chapter 1 Configuration The safety certification label is affixed to the printer in the position below. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 19 Follow the instructions on warning labels during maintenance. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 20: Operation Description
At the same time, it transfers the bit image data to an LED head in units of one dot line. The electro-photographic process mechanism prints data on paper. The operator panel is used for operations and status display. Fig. 2-1 shows an OKIPAGE20 Series Printer block diagram. Figure 2-1 OKIPAGE 20 Series Printer block diagram...
Page 22 Page: 11 Service Manual - OKIPAGE20 Chapter 2 Operation Description The control board consists of an one chip CPU, a LSI program/font ROMs, four DRAMs, 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, 40-MHz clock, that incorporates and RISC CPU and its peripheral devices, and has the following functions.
Page 23 Memory area MENU Expansion RAM System area Working area used for the program Fixed Fixed Raster buffer Stores converted bit image data Enable Expandable Receive buffer Stores temporarily the data received from Enable Expandable the host interface Page buffer Adds print information to the analyzed Expandable receive data and stores the resulted data.
Page 24 signal leads. This mode can provide the bi-directional operation in combination with the compatibility mode. ECP mode - This mode provides the asynchronous bi-directional interface and transmits and receives 1-byte data using eight data signal leads under the semi-duplex control by the host. When the power is turned on, the compatibility mode is automatically selected.
Page 25 - Access time: 100ns (Board-MSM), 90n (Board-FSL) - Capacity: 6MB (Board-MSM), 8MB (Board-FSL) Emulation : PostScript Level 2 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 26 Page: 12 Service Manual - OKIPAGE20 Chapter 2 Operation Description The power supply/sensor board 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.
Page 27 Sensor Function Sensing state Inlet sensor 1 Detects the leading part of the paper and gives ON: Paper exists. the monitor timing for switching from hopping OFF: No paper exists. operation to feeding operation. Monitors paper feeding situation and paper size based on the paper arrival time and running time.
Page 28 +30 V supply is automatically interrupted to stop the supply of all the high-voltage outputs. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 29: Electro-Photographic Process
2.3.1 Electro-photographic process mechanism 2.3.2 Electro-photographic process 2.3.3 Process operation descriptions 2.3.4 Revision of LED Head Illumination Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 30 Page: 14 Service Manual - OKIPAGE20 Chapter 2 Operation Description 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. (1) Image drum unit The image drum unit consists of a sensitive drum, a charger, and a developer.
Page 31 AC voltage supply forcibly. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 32 Page: 15 Service Manual - OKIPAGE20 Chapter 2 Operation Description The electro-photographic processing is outlined below. Figure 2-5 shows the electro-photographic 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.
Page 33 Figure 2-5 Figure 2-6...
Page 34 Figure 2-7 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 35 Page: 16 Service Manual - OKIPAGE20 Chapter 2 Operation Description (1) Hopping Hoppings from the first tray and the front feeder are effected by a single hopping motor in the mechanism shown below. 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 36 (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. After the paper fed approx.
Page 37 (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 39 (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. When leading edge of the paper causes the paper sensor to turn on, the printing is started synchronously. Although Gear D is always rotating due to an all-time rotation of the main motor in direction c, the regist roller would not rotate because the clutch (regist) is turned off.
Page 40 (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 41 transfer roller and the paper. As a results, toner charged negative that is attracted to the image drum surface is transferred to the upper side of the paper by the positive charge on the lower side of the paper. (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.
Page 42 Changes in bias voltage applied to each roller move adhesive toner from the roller to the image drum and return it to the developer. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 43 300 dpi pitch spacing. The printing and correction data obtained from the CPU through four signal lines are sent to the LED array. In the OKIPAGE 20 Series Printer, the correction control of LED head is executed by CPU. The procedure is as follows (1) 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 44 (2) Transfer of correction data to head driver correction data 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.
Page 45 LOAD. The latched printing data turns the LEDs on by STRB1-N through STRB4-N and actuates printing. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 46: Paper Jam Detection
The paper size check for manual feed specified considers the reference size is free size. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 47: Cover Open
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. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 48 Page: 20 Service Manual - OKIPAGE20 Chapter 2 Operation Description Composition The device consists of the stirring gear which rotates at a constant rate, the stirring bar and the magnet on the stirring bar. The stirring bar rotates through the link on the protrusion in the stirring gear. Operation Toner Low is detected by monitoring the time interval of the encounter of the magnet set on the sensor lever and the magnet on the stirring bar.
Page 49 Sensor Alarm is activated. The toner sensor is not monitored while the drum motor is in a halt. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 50 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. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 51: Paper Size Detection
State of Microswitches Paper size Letter Executive Legal 14 Legal 13 A6 (Not available) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 52: Postscript Rom Module (Board-Msm Or Board-Fsl)
The EEPROM has a 4-kbit capacity and stores the PostScript's menu settings. (3) Emulation PostScript Level 2. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 53 This 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. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 54 Page: 25 Service Manual - OKIPAGE20 Chapter 3 Parts Replacement (1) Before starting to replace parts, remove the AC cord and interface cable. (a) Remove the AC cord in the following sequence: Turn off ("o") the power switch of the printer. Disconnect the AC inlet plug of the AC cord from the AC receptacle.
Page 56 Page: 26 Service Manual - OKIPAGE20 Chapter 3 Parts Replacement...
Page 59: Face-Up Stacker Assy
Page: 27 Service Manual - OKIPAGE20 Chapter 3 Parts Replacement This section explains how to change parts and assemblies appearing in the disassembly diagram below. 3.3.1 Face-up Stacker Assy 3.3.2 Contact Assy 3.3.3 DC Fan Motor 3.3.4 OP Panel Assy 3.3.5 Board-AAA 3.3.6 Stacker Assy, Damper Arm, Cover Rear 3.3.7 Sensor Stacker Full...
Page 60: Roller Feed (C)
3.3.28 Lever - Paper end & Lever - Paper near end 3.3.29 Guide Assy - Cassette (L) 3.3.30 Guide Assy - Cassette (R) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 61 (3) Open the face-up stacker assy (2), unhook the right and left projections, and then remove the face-up stacker assy (2). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 62 (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). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 63 (2) Remove the DC fan motor (1) by pulling out the connector of DC fan motor (1). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 64 (3) Remove 2 screws (5) and flexible cable (6) to remove the operator panel assy (7). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 65 (4) Unscrew 3 screws (5) and 2 screws (6), unplug all the connectors (7) , and remove Board-AAA (8). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 66 (9) Remove a screw (6) and washer (7), and then remove the stacker assy (8). (At this time, the damper arm 9 can also be detached simultaneously.) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business...
Page 67 Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 68 (4) Remove Sensor stacker full (3) by releasing spreading the plastic tabs on each side of sensor Assy (3) and lifting switch from cover. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 69 Note: Use care when replacing cable cover. Do not pitch, crimp, or cut cables or protective sheet. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 70 (1) Remove the damper arm.[See 3.3.6] (2) Unscrew 2 screws (1) and remove the two damper (2). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 71 (3) Remove the OP panel assy. [See 3.3.4] (4) Unscrew 5 screws (2) and remove the feeder unit-front (3). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 72 (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). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 73 Page: 39 Service Manual - OKIPAGE20 Chapter 3 Parts Replacement (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.
Page 75 (4) Unlock the latches on both sides of the guide assy-eject (3) and lifting it out. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 76 Carry out a reset of the counter after the replacement. (See Section 4.2) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 77 (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). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 78 (3) Unlock the engagement with the plate-FG (BK) (1) and lift out the roller heat assy (2). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 79 (1) Remove the feeder unit -front. [See 3.3.10] (2) Remove the roller assy-feed (1) by unlocking a latch. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 80 (4) Pull out the head spring (5) from the post. Note: Don't remove two LED cable (3) from the PC connector (2). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 81 (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). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 82 (3) Release two locks and remove frame assy-separation (2). (At this time, coil spring (3) is also remove. Be careful not to lose this spring.) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 83 (3) Remove right and left, 2 bearings (3) from the frame-main by sliding them inside while pushing them. At this time, 2 transfer springs R (4) would be detached simultaneously. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 84 (5) Drop EP lock shaft (4) down and turn in the direction of arrows (B) and remove it. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 85 (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. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 86 (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. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 87 (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. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 88 (3) Squeeze the clamp part of two inlet sensor levers (1). Remove the inlet sensor levers (1) by pushing them downward. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 89 (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). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 90 Page: 55 Service Manual - OKIPAGE20 Chapter 3 Parts Replacement (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).
Page 92 Page: 56 Service Manual - OKIPAGE20 Chapter 3 Parts Replacement (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 Guide Assy-Cassette (L) (2).
Page 94 Page: 57 Service Manual - OKIPAGE20 Chapter 3 Parts Replacement (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).
Page 96: Adjustment
4.1 Maintenance Modes and Functions 4.2 Adjustment When Replacing a Part Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 97: User Maintenance Mode
Service Manual - OKIPAGE20 Chapter 4 Adjustment User maintenance mode System maintenance mode Engine maintenance mode Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 98 X adjust Y adjust Duplex Adjust Select paper source command parameter Page placement Setting Cleaning cycle Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 99 EEPROM reset HSP ERROR recovery HSP ERROR count display HSP ERROR count reset SIDM enable/disable Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 100 Selection of Multi-purpose feeder download table Setting of duplex feed length Fuser count indication Fuser count reset Engine reset Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 101: User Maintenance Mode
Page: 63 Service Manual - OKIPAGE20 Chapter 4 Adjustment 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 All settings for Menu level-1 are reset to the factory default values.
Page 102 This function is capable to adjust the printing start position within the range of ±2 mm in 0.25 mm steps in the Y direction. (9) Duplex adjust The function which performs a correction in Y direction towards the sheet supplied from the tray in double-sided printing.
Page 106 Page: 64 Service Manual - OKIPAGE20 Chapter 4 Adjustment 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 The total number of pages counted at the engine is displayed on the LCD.
Page 107 Display total HSP ERROR count. (8) HSP ERROR count reset Reset the HSP ERROR counter. (9) SIDM enable/disable If it's selected disable, cannot select SIDM emulations by Menu.
Page 109 Page: 65 Service Manual - OKIPAGE20 Chapter 4 Adjustment 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. The engine maintenance mode is provided with the following functions: (1) Head type setting select LED Head type Sets the select LED head type.
Page 110 (11) Selection of High Capacity Second Paper Feeder download table This function selects the download table for the High Capacity Second Paper Feeder. (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.
Page 113 Page: 66 Service Manual - OKIPAGE20 Chapter 4 Adjustment 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 Note 1: The items for each maintenance menu of the events are to be listed. Table 4-2 Items Related to Each Maintenance Menu of EEPROM Reset Users Maintenance Menu Systems...
Page 115: Resetting The Fuser Counter
Reset the fuser counter (Refer to Chapter 4.2.1) 4.2.1 Resetting the fuser counter 4.2.2 Destination setting Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 116 Press the ENTER key to reset the fuser count. After the initializing process is completed, the printer enters into the operation mode. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 117 (Australia, etc.) OKI-INT-L MENU, TRAY TYPE (Singapore, etc.) This function shall not be open for users. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 118: Cleaning
Separation Frame Assy 200,000 Maintenance Kit Note: Maintenance Kit shall be replenished by user's calling to serviceman. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 119 Use the handy cleaner (VACUUM) for cleaning the printers interior. Note: Do not touch image drum, LED lens array, and LED head connector block. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 120 Note: The LED lens array must be cleaned with an LED head cleaner. White lines or stripes (void, light printing) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 121 (3) Take the remove paper powder out of the printer unit in such a way as not to spill it, and then waste it. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 122 (2) Gather as much information on the problem from the customer as possible. (3) Perform inspections in conditions close to those in which the problem had occurred. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 123 (3) Is the paper normal? See paper specifications section. (4) Has the image drum cartridge been loaded properly? Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 124 (4) Do not expose the image drum to light for longer than 5 minutes at room temperature. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 125 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. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 126 Chapter 6 Troubleshooting Procedures If troubles should develop in this printer, troubleshoot in the following procedure flow: Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 127 Page: 79 Service Manual - OKIPAGE20 Chapter 6 Troubleshooting Procedures Table 6-1 lists the status and troubles that may be indicated by messages on the LCD.
Page 138 Page: 80 Service Manual - OKIPAGE20 Chapter 6 Troubleshooting Procedures If troubles are not correctable from the LCD message trouble list, follow the troubleshooting flowcharts given here to deal with them. Note: When replacing the Main board, install the EEPROM from the old Main board, onto the new Main board.
Page 142 [JAM error]...
Page 152 Page: 81 Service Manual - OKIPAGE20 Chapter 6 Troubleshooting Procedures 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, (A) Dark background density (Figure 6-4, (B) Blank paper is output (Figure 6-4, (C) Black belts stripes in the vertical direction (Figure 6-4, (D)
Page 154 (5) Cyclical error Frequency Remedy Image drum 3.17" (94.2 mm) Replace or clean the image drum cartridge.
Page 155 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. Cleaning roller 1.17" (29.8 mm) Replace the image drum cartridge. Transfer roller 2.28"...
Page 158 Figure 6-5 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 159 Page: 82 Service Manual - OKIPAGE20 Chapter 7 Wiring Diagram Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 160 Page: 83 Service Manual - OKIPAGE20 Chapter 7 Wiring Diagram (1) Main board (BOARD-AAA) (2) Power supply board (AC 120V/230V)
Page 161 (3) Power supply board (High voltage) (4) PostScript ROM module (BOARD-MSM or BOARD-FSL). (1) BOARD-FSL (2) BOARD-MSM (5) Flash ROM module (BOARD-FSL).
Page 163 Chapter 7 Wiring Diagram Unit Circuit Diagram Illustration Resistance Hopping Between pins 1 and 2: motor 6.7 ohms Between pins 3 and 4: 6.7 ohms Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business...
Page 164 Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 165 Page: 85 Service Manual - OKIPAGE20 Chapter 7 Wiring Diagram (1) In case of EP ROM or OP ROM (2) In case of MASK ROM...
Page 167 Page: 86 Service Manual - OKIPAGE20 Chapter 8 Parts List Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 168 Location: IC8 4(Program ROM) 40295701 Connection Cord Wire (Power Supply) 40443501 DUPLEX UNIT (ODA) 1 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 169 Page: 88 Service Manual - OKIPAGE20 Chapter 8 Parts List Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 170 Page: 89 Service Manual - OKIPAGE20 Chapter 8 Parts List No. Part No. Name Qty Recommended Remarks 1000 40596901 FRAME Assy-Main Maintenance 4LB-192600-6 Spring (TSP3.3/0.35-16.2*33.9/230G) 4PB4083-6197 Damper P001 40315801 LEVER-Separator 4PP4076-5035 TR Bearing P001 4PP4076-5039 TR Spring R P001 40299701 GUIDE ASSY - Discharge 40032901 Sensor-In...
Page 171 Feeder Unit - FRONT 40547201 LED - Head 1051A1046C10 ZCAT1325-0530A R CORE 4PP4043-4489 Bearing P001 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 172 Page: 90 Service Manual - OKIPAGE20 Chapter 8 Parts List Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 173 Page: 91 Service Manual - OKIPAGE20 Chapter 8 Parts List No. Part No. Name Qty Recommended Remarks 1000 40377601 GUIDE Assy - Cassette (L) 40597101 GUIDE Assy - Cassette (L) Maintenance 4PP4122-1217 Pull Block P001 40349102 Lever - Link (Caulking) 40349701 ROLLER - Link 4PP4076-5358...
Page 174 # ODA (230V)] (230V) OEL/INT 40160301 Power Supply Unit [High Voltage) 1 40307301 BRACKET - AC Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 175: Centronics Parallel Interface
Page: 92 Service Manual - OKIPAGE20 Chapter 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 176 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 b) Sending circuit 6) Timing charts Compatible mode a) Data receiving timing...
Page 177 Nibble Mode - Conforms to IEEE 1284 spec. ECP Mode - Conforms to IEEE 1284 spec. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 178 Page: 93 Service Manual - OKIPAGE20 Chapter 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 Cable length: 6 ft (1.8m) max.
Page 179 Note: The above signal level is for the case where 3KW x 15pF is being connected to the terminal. 6) Communications protocol a) READY/BUSY protocol b) X-ON/X-OFF protocol Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 180: Functions
Refer to the USER'S MANUAL for operating instructions. 1.1 Functions 1.2 External View and Component Names Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 181 Paper length: 279 to 356mm [Weight] 16 lbs ~ 24 lbs (64 ~ 81 g/m Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 182 Page: 96 Service Manual - OKIPAGE20 Chapter C Duplex Unit Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 183: General Mechanism
Chapter C Duplex Unit 2.1 General Mechanism 2.2 JAM Release Mechanism 2.3 Removing/Installing Duplex Unit Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 184 (2) and (3), and is fed again into the unit, given a another-sided printing and ejected. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 186 Page: 100 Service Manual - OKIPAGE20 Chapter C Duplex Unit Removing Duplex Unit (1) Power Off and remove the Paper-Cassette from 1st tray. (2) Remove the Lever-Release from the boss of the Hopping Frame. (3) Rotate the LEVER-Lock (Dup) in the direction of the arrow to release the Lock. (4) Pull the Duplex Unit out of the unit.
Page 187 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 and Duplex Unit will connect automatically with built-in connector. (2) Lock the Duplex Unit to the printer by turning the LEVER-Lock (Dup) to the next locking position as below.
Page 189: Parts Replacement
3.1 Precautions Concerning Parts Replacement 3.2 Parts Layout 3.3 Parts Replacement Methods Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 190 (7) When handling printed circuit boards, do not use any glove which may generate static electricity. (8) Do not place the printed circuit boards directly on the equipment or floor. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 191 Service Manual - OKIPAGE20 Chapter C Duplex Unit This section describes the layout of the main components. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 192: Board-Lex
3.3.1 Board-LEX 3.3.2 Conector (IMSA-9714N-14A) 3.3.3 Photo Sensor 3.3.4 SOLENOID Assy 3.3.5 Motor Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 193 (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.] Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 194 (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). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 195 Note: It should not become a state such as of dotted line from the results of installation. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 196 (4) Take away the SPRING-SL (5) and two screws (6) to remove SOLENOID Assy (7). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 197 Page: 109 Service Manual - OKIPAGE20 Chapter C Duplex Unit (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 (7) and ROLLER-Feed (RV) 8).
Page 199 Chapter C Duplex Unit 4.1 Precautions Prior to the Troubleshooting 4.2 Preparations for the Troubleshooting 4.3 Troubleshooting Method Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 200 (3) Go through the checking in the conditions similar to that in which the problem occurred. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 201 The status of the problem is displayed on the LCD (Liquid Crystal Display) on the Operator panel. Go through the appropriate troubleshooting procedures according to the messages displayed on the LCD. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 202 When a problem occurs, go through the troubleshooting according to the following procedure. 4.3.1 LCD Status Message List 4.3.2 Troubleshooting Flow Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 203 Duplex. square-shaped connector. Replace the square-shaped connector if necessary. - Replace LEX-PCB. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 204 Page: 115 Service Manual - OKIPAGE20 Chapter C Duplex Unit (JAM error) Duplex INPUT JAM...
Page 207 Page: 116 Service Manual - OKIPAGE20 Chapter C Duplex Unit 5.1 Interconnection Diagram 5.2 PCB Layout Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 208 Page: 117 Service Manual - OKIPAGE20 Chapter C Duplex Unit Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 209 Page: 118 Service Manual - OKIPAGE20 Chapter C Duplex Unit PCB-LEX Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 210 Page: 119 Service Manual - OKIPAGE20 Chapter C Duplex Unit Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 211 Page: 120 Service Manual - OKIPAGE20 Chapter C Duplex Unit No. Part No. Name Qty Recommended 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...
Page 212 # W/O ROM 40521501 Program ROM (IC1) 40318201 COVER - Bottom (DUP) 40382701 PLATE - Earth (MTR) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 213 Service Manual - OKIPAGE20 Chapter D Second / Third Paper Feeder 1.1 Functions 1.2 Appearance and Parts Name Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 214 Paper length: 210 to 356mm [Weight] 60 ~ 105 g/m Paper loading capacity: 75 g/m paper 530 sheets Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 215 Page: 123 Service Manual - OKIPAGE20 Chapter D Second / Third Paper Feeder Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 216 Service Manual - OKIPAGE20 Chapter D Second / Third Paper Feeder 2.1 Driving Mechanism 2.2 Hopper Mechanism Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 217 Page: 125 Service Manual - OKIPAGE20 Chapter D Second / Third Paper Feeder 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.
Page 220 3.1 Precautions Concerning Parts Replacement 3.2 Parts Layout 3.3 Parts Replacement Methods Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 221 (7) When handling printed circuit boards, do not use any glove which may generate static electricity. (8) Do not place the printed circuit boards directly on the equipment or floor. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business...
Page 222 Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 223 Chapter D Second / Third Paper Feeder This section describes the layout of the main components. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 224 Roller feed (3.3.8) Bracket sub roller (3.3.9) Frame side (L (3.3.10) Frame side R (3.3.11) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 225 (2) Disengage latchs to remove the Roller assy hopping (2). (3) Disengage latchs to remove the Roller assy feed (3). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 226 Chapter D Second / Third Paper Feeder (1) Unscrew two screws (1) to remove the Cover front assy (2). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 227 (2) Take away all connectors (3) and three screws (4) to remove the Board-BBB (5). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 228 (2) Disengage latches to remove the Lever paper end (4) and Lever paper near end (5). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 229 (5) Unscrew five screws (3) to remove the Frame side (L) assy (4) and Frame side (R) (5). (6) Take away two screws (6) and connector to remove the Motor (7). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 230 (2) Unscrew two screws (1) to remove Connector (IMSA-9714N-14B) (2) and Plate-Earth (FR) (3). (3) Unscrew two screws (4) to remove the connector (IMSA-9714N-14A) (5). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 231 (5) Unscrew a screw (7) to remove the Plate Earth shaft (8). (6) Unscrew a screw (9) to remove the Tray switch assy (10). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 232 (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. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 233 (8) Take away the Gear planet (z28) (20) to remove the Planet plate (21). (9) Take away the Bracket spring (sub) (22) to remove the Spring sub (23). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 234 Page: 140 Service Manual - OKIPAGE20 Chapter D Second / Third Paper Feeder (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).
Page 236 Page: 141 Service Manual - OKIPAGE20 Chapter D Second / Third Paper Feeder (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).
Page 238: Troubleshooting
Chapter D Second / Third Paper Feeder 4.1 Precautions Prior to the Troubleshooting 4.2 Preparations for the Troubleshooting 4.3 Troubleshooting Method Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 239 (3) Go through the checking in the conditions similar to that in which the problem occurred. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 240 The status of the problem is displayed on the LCD (Liquid Crystal Display) on the Operator panel. Go through the appropriate troubleshooting procedures according to the messages displayed on the LCD. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 241 Chapter D Second / Third Paper Feeder When a problem occurs, go through the troubleshooting according to the following procedure. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 242: Troubleshooting
Feeder. square-shaped connector if necessary. - Replace Board - BBB. * : 2 or 3 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 243 Service Manual - OKIPAGE20 Chapter D Second / Third Paper Feeder ( JAM error ) Paper Input Jam Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 244 Service Manual - OKIPAGE20 Chapter D Second / Third Paper Feeder 5.1 Interconnection Diagram 5.2 PCB Layout Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 245 Page: 149 Service Manual - OKIPAGE20 Chapter D Second / Third Paper Feeder Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 246 Page: 150 Service Manual - OKIPAGE20 Chapter D Second / Third Paper Feeder Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 247 Page: 151 Service Manual - OKIPAGE20 Chapter D Second / Third Paper Feeder No. Part No. Name Qty Recommended Remarks 1000 40346701 Frame side (L) assy...
Page 248 40488701 Guide cassette L # For Maintenance 4PP4122-1217 Pull block P001 40349102 Lever link (caulking) 4PP4076-5358 Link support P001 40607201 Spring - Sheet 4PP4076-5359 Cassette stopper P001 4PP4043-4526 Spring P001 4PB4016-1960 Rubber foot P002 3PP4076-5714 Guide rail plate L P001 40349701 Roller link 40346801...
Page 249 Plate - Earth (R) 40583601 Core Assy - 2nd Tray To Printer or 2nd Tray Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 250 Refer to the USER'S MANUAL for operating instructions. 1.1 Functions 1.2 External View and Component Names Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 251 C5, DL, COM-10, COM-9, Monarch 64 - 90 g/m * approximately 50 sheets of envelopes can be set at a time. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 252 Page: 154 Service Manual - OKIPAGE20 Chapter E Multi-Feeder Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 253 Page: 155 Service Manual - OKIPAGE20 Chapter E Multi-Feeder 2.1 General Mechanism 2.2 Hopper Mechanism Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 254 I is not transmitted to roller A, preventing any feeding of papers by roller A. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 255 The hopper automatically feeds the printer with the paper being set, single sheet at a time. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 256 3.1 Precautions Concerning Parts Replacement 3.2 Parts Layout 3.3 Parts Replacement Methods Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 257 Page: 159 Service Manual - OKIPAGE20 Chapter E Multi-Feeder (1) Parts replacements must be carried out, by first turning the printer power switch off "O" and removing the Multi Feeder from the printer. (2) Do not disassemble the Multi Feeder if it is operating normally. (3) Establish the extent of disassembly suitable for the purpose of the procedure, and do not disassemble any more than necessary.
Page 259 Service Manual - OKIPAGE20 Chapter E Multi-Feeder This section describes the layout of the main components. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 260 Planet gear (3.3.5) Roller B (3.3.6) Roller A (3.3.7) Mini pitch belt & Feed roller (3.3.8) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 261 Page: 162 Service Manual - OKIPAGE20 Chapter E Multi-Feeder (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).
Page 262 When the inclination of the pressure roller exceeds ±0.1 mm, fine-adjust it by pressing with fingers, as shown in the left figure, with the pressure spring (roller) installed. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 263 (4) Remove the connector (4). Caution: Be careful to set the sensor plate properly when mounting AOLE-PCB. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 264 Page: 164 Service Manual - OKIPAGE20 Chapter E Multi-Feeder (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 (2).
Page 266 (2) Remove the AOLE-PCB. (see 3.3.2) (3) Remove two screws (1), then remove the hopping motor (2). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 267 (3) Remove two screws (1), then remove the motor bracket assy (2) and the planet gear (3). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 268 Page: 167 Service Manual - OKIPAGE20 Chapter E Multi-Feeder (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).
Page 270 Page: 168 Service Manual - OKIPAGE20 Chapter E Multi-Feeder (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 272 (3) Remove two bearings (3) and remove the plate (4). (4) Remove the mini pitch belt (5) and the feed roller (6). Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 273: Precautions Prior To The Troubleshooting
Service Manual - OKIPAGE20 Chapter E Multi-Feeder Precautions Prior to the Troubleshooting Preparations for the Troubleshooting Troubleshooting Method Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 274 (3) Go through the checking in the conditions similar to that in which the problem occurred. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 275 The status of the problem is displayed on the LCD (Liquid Crystal Display) on the operator panel. Go through the appropriate troubleshooting procedures according to the messages displayed on the LCD. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 276: Lcd Status Message List
When a problem occurs, go through the troubleshooting according to the following procedure. 4.3.1 LCD Status Message List 4.3.2 Troubleshooting Flow Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 277 Page: 174 Service Manual - OKIPAGE20 Chapter E Multi-Feeder The listing of the statuses and problems displayed in the form of messages on the LCD is provided in Table 4-1. Classification LCD Status Message Description Recover Method Jam Error Notifies of occurrence of - Check the paper in the jam while the paper is Multi-Feeder.
Page 279 Page: 175 Service Manual - OKIPAGE20 Chapter E Multi-Feeder ( JAM error ) Paper Input Jam...
Page 281: Interconnection Diagram
Page: 176 Service Manual - OKIPAGE20 Chapter E Multi-Feeder 5.1 Interconnection Diagram 5.2 PCB Layout Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 282 Page: 177 Service Manual - OKIPAGE20 Chapter E Multi-Feeder Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 283 Page: 178 Service Manual - OKIPAGE20 Chapter E Multi-Feeder AOLE-PCB Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 284 AOLE-PCB G011 2201000P0141 Connector (IMSA-9714N-14B) 4YS4011-4448 Nylon connector cord P004 4PP4083-2394 Stirrer roller gear P001 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)

This manual is also suitable for:

Okipage 20 dx Okipage 20 dxn

OKIDATA Okipage 20 Service Manual

2 Operation Description

1 Outline

3 Parts Replacement

4 Troubleshooting

5 0 Connection Diagram

Quick Links

Troubleshooting

Need help?

Questions and answers

Summary of Contents for OKIDATA Okipage 20

Page 2: Copyright

Page 3: Table Of Contents

Page 8: Specification

Page 17: Certification Label

Page 20: Operation Description

Page 29: Electro-Photographic Process

Page 46: Paper Jam Detection

Page 47: Cover Open

Page 51: Paper Size Detection

Page 52: Postscript Rom Module (Board-Msm Or Board-Fsl)

Page 59: Face-Up Stacker Assy

Page 60: Roller Feed (C)

Page 96: Adjustment

Page 97: User Maintenance Mode

Page 101: User Maintenance Mode

Page 115: Resetting The Fuser Counter

Page 118: Cleaning

Page 175: Centronics Parallel Interface

Page 180: Functions

Page 183: General Mechanism

Page 189: Parts Replacement

Page 192: Board-Lex

Page 238: Troubleshooting

Page 242: Troubleshooting

Page 273: Precautions Prior To The Troubleshooting

Page 276: Lcd Status Message List

Page 281: Interconnection Diagram

This manual is also suitable for:

OKIDATA Okipage 20 Service Manual

2 Operation Description

1 Outline

3 Parts Replacement

4 Troubleshooting

5 0 Connection Diagram

Quick Links

Troubleshooting

Need help?

Questions and answers

Related Manuals for OKIDATA Okipage 20

Summary of Contents for OKIDATA Okipage 20

This manual is also suitable for:

Table of Contents