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OKIDATA OKIPAGE 16n Service Manual

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Summary of Contents for OKIDATA OKIPAGE 16n

  • Page 1 Thank You for purchasing this Factory Service Manual on EBAY from PCTECHINFO! Click Here for more Factory Service Manuals for other Computer and Printer / Copier Manufacturers from PCTECHINFO!
  • Page 2 OKIPAGE 16n Service Manual P/N 59274401 All specifications are subject to change without notice.
  • Page 3 Disclaimer This document may not be reproduced without the written permission of Okidata Training and Publications. Every effort has been made to ensure the accuracy of the information ocntained in this training course. Okidata is not responsible for errors beyond its control.

  • Page 4: Table Of Contents

    Main chassis unit ..........................3 - 26 3.3.18 Registration roller ..........................3 - 29 3.3.19 Drum motor ............................3 - 30 3.3.20 Idle gear ............................3 - 32 Table of Contents TOC - 1 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 5 I/F time-out between printer and optional tray (ERROR 81) ......... 6 - 30 I/F time-out occurs between the printer and the operator panel (ERROR 80) ....6 - 31 Table of Contents TOC - 2 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 6 Feed roller ............................B - 12 3.3.5 Hopping roller rubber ........................B - 13 3.3.6 Side frame (L) assy ........................... B - 14 3.3.7 Side frame (R) assy ........................... B - 15 Table of Contents TOC - 3 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 7 Interconnection Diagram ........................C - 20 PCB Layout ............................C - 21 Parts List ........................C - 22 APPENDIX D: LOCALTALK SERIAL INTERFACE (OKIPAGE16N/PS ONLY) ... D - 1 Table of Contents TOC - 4 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 8: Configuration

    Paper size detection switch Extension RAM (Option) High Capacity Second Paper Multi Feeder Feeder (Option) (Option) PostScript Board (OKIPAGE16n/PS only) *: Consumables : Paper feeding : Singal flow Figure 1-1 Configuration 1 - 1 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 9: Printer Configuration

    The printer unit consists of the following hardware components: • Electrophotographic processor • Paper feeder • Controller • Operator panel • Power Supply board Figure 1-2 shows the printer unit configuration. Figure 1-2 Configuration 1 - 2 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 10: Optional Configuration

    Optional Configuration The options below are available for use with OKIPAGE16n / OKIPAGE16n/PS. They are sold separately from the printer unit. (1) Multi-Purpose Feeder (2) High Capacity Second Paper Feeder Configuration 1 - 3 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 11 (3) RAM module (72 pin SIMM, 1 MB/2 MB/4 MB/8 MB/16 MB/32 MB) • 16 MB RAM module • 8 MB RAM module Configuration 1 - 4 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 12: Specification

    Automatic feed or manual feed (8) Paper delivery method Face down/face up (9) Resolution 600 x 600 dots/inch (10) Power input 120 VAC + 5.5%, –15% 230/240 VAC + 10%, –14% Configuration 1 - 5 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 13 45 dB (A) or less Power save mode: 43 dB (A) or less (14) Consumables Toner cartridge kit 5,000 (5% duty) Image drum cartridge 30,000 (at continuous printing) 18,000 (3 page/job) 11,000 (1 page/job) Configuration 1 - 6 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 14: Safety Standards

    The safety certification label is affixed to the printer in the position below. 1.5.2 Warning Label The warning label is affixed to the portion which may cause bodily injury. Follow the instructions on warning labels during maintenance. Configuration 1 - 7 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 15 This page was intentionally left blank. Configuration 1 - 8 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 16: Operation Description

    LED head in units of one dot line. The electrophotographic process mechanism prints data on paper. The operator panel is used for operations and status display. Fig. 2-1 shows an OKIPAGE16n / OKIPAGE16n/PS block diagram. Operation Description 2 - 1 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 17 Developing roller AC-IN Low voltage Filter Toner supply roller generation circuit circuit Cleaning roller Heater Driver Power / Sensor board Heat on Figure 2-1 OKIPAGE16n / OKIPAGE16n/PS block diagram Operation Description 2 - 2 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 18: Main Control Board (Board-Com)

    Control of OKI HSP interface (2) Program/font ROM's The program/font ROM's store the HP IV emulation program and various types of font. MASK ROM is used as the program/font ROM's. Operation Description 2 - 3 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 19 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. Operation Description 2 - 4 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 20 The conceptual diagram of the OKI HSP interface is shown in Fig. 2-2. Printer Network, etc. Control board expansion board OKI HSP interface Fig. 2-2 Operation Description 2 - 5 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 21 Basic specification - Type: 72 pins SIIM (32 bits buss width) - Access time: 60ns, 70ns, 80ns, 100ns - Capacity: 1, 2, 4, 8, 16 or 32MB - Parity: None Operation Description 2 - 6 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 22: Power Supply Board

    Voltage applied to transfer roller Variable +400 V Voltage applied to cleaning roller (3) Photosensor The photosensor mounted on this power supply board supervises the paper running state during printing. Operation Description 2 - 7 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 23 Detect the end of the paper. Paper exists. OFF: No paper exists. Detects the lack of toner. Toner low sensor ON long: Toner low exists OFF short: No Toner low exists Operation Description 2 - 8 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 24: Relay/Driver Board (Aolc Board)

    Relay/Driver Board (AOLC board) This board relays signals between the Control board and the Power supply board and includes the registration motor and drum motor driver IC. Operation Description 2 - 9 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 25: Electrophotographic Process

    The Figure 2-4 shows the layout of the electrophotographic process mechanism. Fuser Hopping Motor LED Head Face Up Stacker Front Feeder Hopping Roller Drum Motor Registration Motor Image Drum Unit Figure 2-4 Operation Description 2 - 10 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 26 (185 ~ 188°C) by connecting or disconnecting the AC voltage supply to the heater. If the heater roller temperature rises abnormally, the thermostat of the heater voltage supply circuit is activated to cut the AC voltage supply immediately. Operation Description 2 - 11 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 27 Fusing The toner image transferred to the paper is fused under heat and pressure. Figure 2-6 shows an electrophotographic process timing chart. Operation Description 2 - 12 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 28 Paper eject roller Paper eject Image data (Face down) Power supply LED head Charger roller Exposure Paper Power eject Power supply roller supply (Bias voltage) Toner Toner Charging cartridge supply roller Paper path Cleaning Doctor Developing Cleaning selector Paper Developing roller blade roller...
  • Page 29 Figure 2-6 Operation Description 2 - 14 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 30: Process Operation Descriptions

    Hopping Motor One-way Clutch Gear B Hopping Roller (Front Feeder) Registration Roller Hopping Roller One-way (First Tray) Clutch Gear A Operation Description 2 - 15 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 31 (The skew of the paper can thus be corrected.) One-way Clutch Gear B Inlet Sensor Hopping Roller (Front feeder) Registration Roller Paper Hopping Roller (1st Tray) Operation Description 2 - 16 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 32 After turning on the inlet sensor, the paper advances further by a predetermined length until it hits the registration roller. (The skew of the paper can thus be corrected.) Operation Description 2 - 17 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 33 The driven registration roller advances the paper until it comes out of the registration roller. When the leading edge of the paper causes the paper sensor to turn on, the printing is started synchronously. Operation Description 2 - 18 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 34 The surface potential of the irradiated part of the image drum drops, thereby forming an electrostatic latent image associated with the image signal. LED head Charge roller LED head Power supply Image drum Paper Image drum Operation Description 2 - 19 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 35 Toner is attracted to the exposed part (low-potential part) of the image drum at the contact between the image drum and the developing roller, making the electrostatic latent image visible. Operation Description 2 - 20 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 36 Image drum Paper Transfer roller Power supply Operation Description 2 - 21 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 37 The backup roller is held under a pressure of 2.5 kg from the pressure spring at each side. Heater Heater Roller Separation Claw Thermistor Paper Back-up Roller Pressure Spring Operation Description 2 - 22 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 38 When the number of accumulated sheets is 10 or more and the printout operation ends Changes in bias voltage applied to each roller move adhesive toner from the roller to the image drum and return it to the developer. Operation Description 2 - 23 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 39: Paper Jam Detection

    A4. The detected paper size differs from the paper size set by command or menu. • The paper size check with the manual feed specified considers the reference size as free size. Operation Description 2 - 24 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 40: 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 control board performs the cover open processing. Operation Description 2 - 25 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 41: Toner Low Detection

    Sensor Lever becomes long. By monitoring this time inter- val, toner low can be detected. Operation Description 2 - 26 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 42 When there is no change with the toner sensor for 2 cycles (3.398 sec. x 2) or more, then the Toner Sensor Alarm is activated. • The toner sensor is not monitored while the drum motor is stopped. Operation Description 2 - 27 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 43: Stacker-Full Detection

    AppleTalk protocol data is received from the host system via LocalTalk interface. The LocalTalk interface control circuit consists of a CPU, a program ROM, a SRAM, and a driver/receiver IC. Operation Description 2 - 28 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 44: Parts Replacement

    (7) When handling ICs such as microprocessors, ROM and RAM, and circuit boards, do not wear gloves that are likely to generate static electricity. (8) Do not place printed circuit boards directly on the equipment or floor. Parts Replacement 3 - 1 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 45 3~5 mm screws screwdriver, Magnetized No. 3-100 screwdriver No. 5-200 screwdriver Digital multimeter Pliers Handy cleaner Cleans LED head LED Head cleaner Disconnector for Disconnect Jack-in connector Jack-in connector Parts Replacement 3 - 2 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 46: Parts Layout

    Parts Layout Figure 3-1 Parts Replacement 3 - 3 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 47 Figure 3-2 Parts Replacement 3 - 4 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 48 Earth plate Hopping motor Earth plate Paper supply guide C Paper supply guide B Earth plate FF roller Paper supply guide A Figure 3-3 Parts Replacement 3 - 5 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 49 Relay/Drive board (AOLC-PCB) Power Supply Board Insulator AOLS-PCB Guide rail (L) assy Guide rail (R) assy Figure 3-4 Parts Replacement 3 - 6 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 50: How To Change Parts

    How to Change Parts This section explains how to change parts and assemblies appearing in the disassembly diagram below. Parts Replacement 3 - 7 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 51: Rear Cover, Side Cover (L) Assembly, Face-Up Stacker Assembly, And I/F Cover Assembly

    (5) Remove two screws 6. Remove the I/F cover Assembly 7. (6) Remove two screws 9 and four claws A. (Use a small flat blade screw driver to "pop" claws.) Remove the rear cover 10. Claw A Parts Replacement 3 - 8 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 52: Contact Assembly

    Assembly 3 out first, then the top of Assembly. Remove fan connector cables from location 4. Caution: Be careful not to deform the electrodes of the contact Assembly when removing the contact Assembly. Parts Replacement 3 - 9 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 53: Dc Fan Motor

    (2) Remove the side cover (L) Assembly (see 3.3.1 (1) to (4)). (3) Unplug the connector of the DC fan motor 1 and remove the DC fan motor 1. Parts Replacement 3 - 10 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 54: Manual Feed Hopper Assembly

    (2) Open manual feed hopper Assembly 1. Disengage the lower portion of this Assembly. (3) Hold manual feed hopper Assembly 1 vertically and remove the left and right levers 2 with a downward motion. Parts Replacement 3 - 11 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 55: Side Cover (R) (Operator Panel Assembly)

    (4) Remove two screws 5 and flexible cable 6 (use care to not damage flexible cable). Remove operator panel Assembly 7. (5) Open manual feed hopper Assembly 8. Remove three screws 9 and then remove side cover (R) 10. Parts Replacement 3 - 12 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 56: Earth Plate Bk (R) (Board-Psba, Board-Com)

    (6) Remove four screws 8. Remove side plate (R) 9, by pulling up and out on top part of plate. (7) Remove the claws and then remove Earth plate BK (R) 10. Parts Replacement 3 - 13 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 57: Stacker Cover Assembly, Damper Arm, And Washer

    (6) Remove screw 2 and washer 3. Remove two claws. Remove stacker cover Assembly 4 (at this time, the damper arm 5 is also removed). Parts Replacement 3 - 14 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 58: Damper

    (3) Remove two screws 1 and then remove two dampers 2. This hole is elongated. When replacing damper be sure elongated hole is to rear of printer. This hole is round. Parts Replacement 3 - 15 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 59: Stacker Full Sensor Assembly

    (3) Remove four screw 1. Remove stacker mount 2 by releasing the tabs at position 2A . (4) Remove stacker full sensor Assembly 3 by releasing spreading the plastic tabs on each side of sensor Assembly 3 and lifting switch from cover. Parts Replacement 3 - 16 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 60: Cable Cover (Cable Guides A And B)

    (3) Remove two screws 1 release tabs at position 1A . Remove cable cover 2, cable guide A Note: Use care when replacing cable cover. Do not pinch, crimp, or cut cables or protective sheet. Parts Replacement 3 - 17 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 61: Eject Roller Assembly

    (5) Remove the stacker cover Assembly (see 3.3.7). (6) Release the latch on the right side of eject roller Assembly 1. Lift up and remove the eject roller Assembly. Parts Replacement 3 - 18 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 62: Paper Supply Guide D

    (4) Lift up and remove paper supply guide D 3. (At this time, two bias rollers 4 and bias spring 5 are also removed. Be careful not to lose them.) Parts Replacement 3 - 19 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 63: Separator F

    Switch Assembly 7 should be moved more towards the center of the paper path. During Re-assembly use great care: do not pinch, crimp, or cut wires to switch Assembly Parts Replacement 3 - 20 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 64 Parts Replacement 3 - 21 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 65: Front Feeder Roller Assy

    Note 1: Hopping roller orientation when removed from shaft. 2: Be sure sensor arm swings freely after re-assembly. 3: Be sure that during re-assembly both feeder cams (2 and =) are facing the same direction. Parts Replacement 3 - 22 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 66: Hopping Motor

    (8) Remove the lever (R) (see 3.3.10. (6)). (9) Remove two screws 2 and then remove side plate (R) Assembly 3. (10) Remove two screws 4 and then remove hopping motor 1. Parts Replacement 3 - 23 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 67 This page was intentionally left blank. Parts Replacement 3 - 24 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 68: Front Feeder Paper End Sensor

    (10) Remove two screws 5 and then remove square-shaped connector 6 from paper supply guide C 3. (11) Using a dedicated tool, remove the connector cord 7 from the square-shaped connector. Parts Replacement 3 - 25 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 69: Main Chassis Unit

    (10) Remove connector cover 5 in direction of arrow and then remove four connectors 6 and (11) Remove the DC Fan motor. (12) Remove eight screws = and then remove main chassis unit A. Parts Replacement 3 - 26 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 70 Parts Replacement 3 - 27 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 71 This page was intentionally left blank. Parts Replacement 3 - 28 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 72: Registration Roller

    (4) Release the latch and remove registration roller gear 3 and pressure roller gear 4. (5) Remove left and right side registration roller bearing Assemblys 5 and then remove resist roller 6 and pressure roller 7. Parts Replacement 3 - 29 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 73: Drum Motor

    (8) Release two latches and remove motor Assembly 7. (9) Remove two screws 8 and then remove drum motor 9 and heat sink. (10) Remove two screws = and then remove registration motor A. Parts Replacement 3 - 30 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 74 Parts Replacement 3 - 31 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 75: Idle Gear

    (4) Remove three screws 1 and then remove motor bracket B 2. (5) Remove idler gear E 3, idle gear D 4, idle gear B 5, idle gear C 6, idle gear A 7, and two resist idle gears 8. Parts Replacement 3 - 32 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 76: Fusing Assembly

    (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove the side cover (L) Assembly (see 3.3.1 (1) to (3)). (3) Unplug connector 1. (4) Remove four screws 2 and then remove fusing Assembly 3. Parts Replacement 3 - 33 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 77: Fuser Pressure Roller

    (6) Release the engagement with earth plate L (BK) 3. Lift and remove fuser pressure roller 4. (At this time, two fuser pressure roller bearings 5 and two bias springs 6 are also removed.) Parts Replacement 3 - 34 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 78: Ep Lock Shaft

    (3) Remove screw 1. Turn EP lock level (L) Assembly 2 in the direction of arrow A . (4) Remove spring 3. (5) Drop EP lock shaft 4 down and turn in the direction of arrows B and remove it. Spring located here. Parts Replacement 3 - 35 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 79: Hopping Roller Assembly

    (5) Release the latch and remove bearing L 6. (6) Release the latch and remove hopping roller Assembly 5. (At this time, knock pin 7 is also removed. Be careful not to lose the knock pin.) Parts Replacement 3 - 36 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 80: Outlet Sensor Lever

    (2) Remove the main chassis unit (see 3.3.17). (3) Press the clamp part of outlet sensor lever 1. Remove the outlet sensor lever 1 by pushing it upward from the lower side. Parts Replacement 3 - 37 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 81: Toner Sensor Lever

    (2) Remove the main chassis unit (see 3.3.17). (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. Parts Replacement 3 - 38 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 82: Paper Sensor Lever

    (2) Remove the main chassis unit (see 3.3.17). (3) Squeeze the clamp part of the paper sensor lever 1. Remove the paper sensor lever 1 by pushing it upward from the lower side. Parts Replacement 3 - 39 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 83 This page was intentionally left blank. Parts Replacement 3 - 40 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 84: Inlet Sensor Lever

    (2) Remove the main chassis unit (see 3.3.17). (3) Squeeze the clamp part of two inlet sensor levers 1. Remove the inlet sensor levers 1 by pushing them downward. Parts Replacement 3 - 41 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 85: Power Supply Board / Insulator

    (4) Remove eight screws 4, connector 5, and two screws 6. Remove Power Supply Board 7 together with AOLC-PCB 8. (5) Unplug connector 9 and remove PowerSupply Board 7. (6) Remove insulator 10. Caution: Be careful not to deform the paper end lever A. Parts Replacement 3 - 42 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 86 Parts Replacement 3 - 43 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 87 This page was intentionally left blank. Parts Replacement 3 - 44 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 88: Paper End Lever

    (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove the main chassis unit (see 3.3.17). (3) Release the lock and remove paper end lever 1. Parts Replacement 3 - 45 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 89: Guide Rail (L) Assembly

    (Pay attention the direction of hook of cassette lock spring 5.) (7) Remove spring 8 and then remove cassette stopper 9. (8) Remove screw 0 from bias link 6 and then remove link support A. Parts Replacement 3 - 46 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 90 Parts Replacement 3 - 47 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 91: Guide Rail (R) Assembly

    (10) Remove screws E from bias link 6 and then remove link support F. (11) Remove two screws G and then remove square cord from square-shaped connector H. (12) Using a dedicated tool, remove connector cord I from square-shaped connector H. Parts Replacement 3 - 48 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 92 Parts Replacement 3 - 49 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 93: Cover Frame

    (1) Turn the AC power switch off. Unplug the AC power cord from the outlet. (2) Remove interface cable 1. (3) Open stacker cover 2. Remove two screws 3 and then remove Cover Frame 4. Parts Replacement 3 - 50 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 94: Led Head

    (4) Push the hook on the left side of stacker cover 1 in the direction of arrow and remove LED head 4. (Take care not to lose head springs 5.) (5) Pull out the head spring 5 from the post. Parts Replacement 3 - 51 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 95: Separator Assembly

    (3) Release two locks and remove separator Assembly 2. (At this time, leaf spring 3 and coil spring 4 are also removed. Be careful not to lose these springs.) Parts Replacement 3 - 52 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 96: Transfer Roller

    3. (At this time, two bearings (TR) 4 and two transfer roller springs 5 are also removed.) (4) Remove diselectrification bar 6 and diselectrification film 7 from the chassis unit. Parts Replacement 3 - 53 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 97 This page was intentionally left blank. Parts Replacement 3 - 54 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 98: Adjustment

    EEPROM on the controller PCB. A parameter is set with the key operation on the operator panel. This printer has three kinds of maintenance modes. It is required to select one of the maintenance modes necessary when replacing a part. Adjustment 4 - 1 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 99: Maintenance Modes And Functions

    • Page count printing enable/disable • Rolling ASCII continuous printing • EEPROM reset • HSP ERROR recovery • HSP ERROR count display • HSP ERROR count reset • SIDM enable/disable Adjustment 4 - 2 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 100 Selection of second tray feeder download table • Setting of envelope feeder paper feed length • Selection of envelope feeder download table • Fuser count indication • Fuser count reset • Engine reset Adjustment 4 - 3 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 101: User Maintenance Mode

    This function is used to improve print quality. Rough/thick paper, Low temperature/humidity and/or blockly faded print appeared. Nomal media/environmental conditions. Rough papers, high temperature/humidity and/or snowy print of high density pattern. Adjustment 4 - 4 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 102: User Maintenance Mode Menu System

    - 0.25 mm Press the Writing into the EEPROM is performed or key. SETTING when the Enter key is pressed. Press the Menu key. Press the ON LINE key. INITIALIZING ON-LINE *** Adjustment 4 - 5 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 103 This page was intentionally left blank. Adjustment 4 - 6 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 104: System Maintenance Mode

    The system maintenance mode is set when the power is turned ON while pressing the Recover key. • This mode adopts the menu for function selection. • The system maintenance mode is provided with the listed functions. Adjustment 4 - 7 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 105 Display total HSP ERROR count. (7) HSP ERROR count reset • Reset the HSP ERROR counter. (8) SIDM enable/disable • If it's selected disable, cannot select SIDM emulations by Menu. Adjustment 4 - 8 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 106 HSP ERR Press the Enter key HSP ERR HSP ERR ON-LINE CNT RST RESET'NG Press the SIDM ENABLE DISABLE Press the Menu key. Press the ON LINE key. INITIALIZING ON LINE*** Adjustment 4 - 9 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 107: Engine Maintenance Mode

    This function sets the paper feed length of the High Capacity Second Paper Feeder. (10) Selection of High Capacity Second Paper Feeder download table • This function selects the download table for the High Capacity Second Paper Feeder. Adjustment 4 - 10 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 108 Transition to the operation mode occurs upon completion of resetting. Note: Do not change the default value of (2), (5), (8) ~ (13) they are the parameter for adjusting in the factory. Adjustment 4 - 11 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 109 (0.5 mm intervals) Press the + 3.5 mm Menu key. - 4.0 mm - 0.5 mm DRUM CNT T nnnnnn Press the Menu key. DRUM CNT nnnnnn Press the Menu key. Adjustment 4 - 12 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 110 RESET' NG Press the Menu key. Press the Upon completion Enter key. of processing ENGINE ENGINE ON-LINE*** RESET RESET'NG Press the Menu key. Press the ON-LINE key. INITIALIZING ON-LINE .XXX Adjustment 4 - 13 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 111: Eeprom Initialization

    Engine ID error LCD display: ENGINE RESET Setting of data for destination User information error This resetting occurs when irregular user LCD display: information is detected. EEPROM RESETTING j : shows initialization Adjustment 4 - 14 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 112: Adjustment When Replacing A Part

    Note: When the luminous intensity marking of the replaced LED head (new part) is the same as that of the used LED head (old part), do not set the LED head drive time. • Luminous intensity marking label (1) Normal Type LED HEAD Adjustment 4 - 15 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 113 0.44 ~ 0.46 0.97 ~ 1.03 0.47 ~ 0.49 1.04 ~ 1.10 0.50 ~ 0.52 1.11 ~ 1.18 0.53 ~ 0.57 1.19 ~ 1.26 0.58 ~ 0.60 1.27 ~ 1.35 Adjustment 4 - 16 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 114 (Do not turn the power off until the printer enters into the on-line state.) Adjustment 4 - 17 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 115: Resetting The Fuser Counter

    The desired destination can be set by turning the power on while depressing two keys corresponding to the destination according to the following table. Destination Keys to be depressed MENU, MENU, OKI-INT-A MENU, PAPER SIZE (Australia, etc.) OKI-INT-L MENU, TRAY TYPE (Singapore, etc.) Adjustment 4 - 18 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 116: Periodic Maintenance

    Clean the LED lens array or replace the toner cartridge when white lines or stripes (void, light printing) are generated vertically down the page. Note: The LED lens array must be cleaned with an LED head cleaner. White lines or stripes (void, light printing) Periodic Maintenance 5 - 1 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 117 This page was intentionally left blank. Periodic Maintenance 5 - 2 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 118: Troubleshooting Procedures

    Do not expose the image drum to direct sunlight. Keep hands off the fuser unit as it is heated during operation. Do not expose the image drum to light for longer than 5 minutes at room temperature. Troubleshooting 6 - 1 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 119: Preparation For Troubleshooting

    LCD Status Message/Trouble List Table 6-1 lists the status and problems that may be indicated by messages on the LCD. LED status : OFF : BLINK : ON : Undefined Troubleshooting 6 - 2 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 120 Category LCD status message Trouble or status Remedy Daily status The printer is in the on-line mode. Normal operation READY ON-LINE .xxx MANFEED xxx: Emulation in use tttttt ATTENTION (HP4, PS, HEX, AUT) DATA tttttt: Tray being selected (TRAY 1, TRAY 2, FRONT, MANUAL, FEEDER) mmmmmmmmm: Paper size in the tray being selected (LETTER, EXECUTIVE, LEGAL 14, LEGAL 13,A4 SIZE, A5 SIZE, A6...
  • Page 121 Category LCD status message Trouble or status Remedy Daily status Normal operation READY The printer is printing. MANFEED PRINTING ATTENTION DATA It enters into this mode when printer idle status duration exceeds READY the value set by the menu. POWER SAVING MANFEED ATTENTION DATA...
  • Page 122 Category LCD status message Trouble or status Remedy Daily status Allows operator to flush processing data by pressing Normal operation READY RESET button for 2 seconds. (OKIPAGE16n/PS only) MANFEED RESET TO FLUSH ATTENTION DATA The printer is flushing current data. READY This message is displayed till the end of the current data.
  • Page 123 Category LCD status message Trouble or status Remedy Daily status READY The fuser is nearing end of life. – Replace the fuse unit. This message is displayed in combination with other message Note: After replacing the fuser unit reset the fuser MANFEED FUSER LIFE indicated on the first line.
  • Page 124 Category LCD status message Trouble or status Remedy Daily status It indicates that it is performing drum cleaning. READY The second line shows either of these messages: DRUM CLEANING MANFEED "MANUAL LETTER REQUEST" or MANUAL XXXXX R.. ATTENTION "MANUAL A4 SIZE REQUEST". DATA It indicates that a home position error of the front tray has READY...
  • Page 125 Category LCD status message Trouble or status Remedy Indicates that the first paper tray which is a part of paper path for READY paper in the second tray was removed. – Install the first paper tray. TRAY1 INSTALL MANFEED ATTENTION DATA Buffer The memory overflowed due to the following causes.
  • Page 126 Category LCD status message Trouble or status Remedy Paper size Paper of improper size was fed from the tray. – Check the paper in the tray or check to see if more READY error tttttt: MANUAL, TRAY 1, TRAY 2, FRONT, FEEDER than one sheet was fed simultaneously.
  • Page 127 Category LCD status message Trouble or status Remedy Daily status READY Menu operation Normal operation in menu mode. MANFEED menu ATTENTION DATA READY The upper cover was opened. – Close the cover to release the error display. – If the display does not change after the cover is MANFEED COVER OPEN closed, check for correct operation of cover open/...
  • Page 128 Category LCD status message Trouble or status Remedy Controller A fault occurred in the printer. READY ERROR CONTROLLER error Turn the power off, then on to release the error display. If the * When the program ROM is updated and the MANFEED error display cannot be released by this procedure, call a service EEPROM is replaced with a new one, the menu...
  • Page 129 Category LCD status message Trouble or status Remedy Controller Code Error Remedy error (nn) A fault occurred in the fan motor. – Connect the fan motor cable properly. – Replace the fan motor. – Replace the Power/sensor board. A fault occurred in the fuser. See chapter 6.5.2.
  • Page 130 Category LCD status message Trouble or status Remedy Processor An error occurred in the controller. READY error n = ( 1) Exception Code aaaaaaaa = Error address ERROR CONTROLLER MANFEED On-aaaaaaaa ATTENTION DATA Exception Error code – Turn the power off, then on. Reserved –...
  • Page 131 This page was intentionally left blank. Troubleshooting 6 - 14 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 132: Lcd Message Troubleshooting

    Messages cannot be received through the parallel interface. Data cannot be received through the OKI HSP interface. Note: When replacing the Main board, install the EEPROM from the old Main board, onto the new Main board. Troubleshooting 6 - 15 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 133: The Printer Does Not Work Normally After Being Turned On

    • Replace the Power/sensor board. • Yes Replace the Driver board. • Is the printer recovered? • Replace the Main board • YES END. 1 - 1 1 - 2 Troubleshooting 6 - 16 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 134 LCD display? XXXX XXXX • Take the proper action following the message shown in the LCD display. (For details, see the chapter 6.5.1 LCD STATUS message/trouble list.) END. Troubleshooting 6 - 17 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 135 FRONT Main control board (BOARD-COM) Fig. 6-1 Connector and Pin Location INLET Fig. 6-2 Measurement by a Multimeter Troubleshooting 6 - 18 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 136 Power/Sensor board Fig. 6-3 Connector and Pin Location Troubleshooting 6 - 19 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 137: [Jam Error]

    Connect each connector properly or replace the nylon connector cord (white: 9 pins). Is the coil resistance (normal resistance: about 6.7 Ω) of the hopping motor • normal? • Replace the hopping motor. • Replace the Main board. Troubleshooting 6 - 20 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 138: Paper Input Jam (Front Feeder)

    Replace the front feeder paper sensor assembly. • No Is the hopping roller rotating? • Set the paper properly. • Is the hopping motor rotating? • Replace the front feeder gear or idle gear. 2 -1- Troubleshooting 6 - 21 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 139: Paper Feed Jam

    • Yes Replace the Driver board. • Is the printer recovered? • Replace the Main board. • YES END. Go to on the next page Go to on the next page Troubleshooting 6 - 22 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 140 • No Replace the drum motor. • Replace the driver board. • Is the printer recovered? • No Replace the Main board. • YES END. Go to on the next page Troubleshooting 6 - 23 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 141 Replace the paper sensor lever. • Clean the paper sensor on the Power/sensor board. (See Fig. 2-3 Sensor Layout Diagram.) • Is the printer recovered? • Replace the Power/sensor board. • END. Troubleshooting 6 - 24 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 142: Paper Exit Jam

    Draw the face-up stacker out the printer completely or push it into the printer completely. • Is the eject roller assembly installed properly? • Install the eject roller assembly properly. • Replace the eject roller assembly. Troubleshooting 6 - 25 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 143 This page was intentionally left blank. Troubleshooting 6 - 26 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 144: Paper Size Error

    YES END. • Clean the inlet sensor, paper width sensor, and outlet sensor. (See Fig. 2-3 Sensor Layout Diagram.) • Is the printer recovered?. • Replace the Power/sensor board. • END. Troubleshooting 6 - 27 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 145: Fuser Unit Error (Error 71), (Error 72), (Error 73)

    (See Fig. 6-5 • No Adjust the thermistor contact so as to touch the contact assembly properly. To on the next page To on the next page Troubleshooting 6 - 28 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 146 Is Pin 31 (HEAT ON signal) of the POWER connector of the Main board turned on? (In heater on state, this pin is set to 0 V). • No Replace the Main board. • Replace the Power/sensor board. • Go to Troubleshooting 6 - 29 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 147: F Time-Out Between Printer And Optional Tray (Error 81)

    Is the printer recovered? • No Isolate the trouble by following the 2nd tray or envelope feeder maintenance manual. (See appendix C or D.) • YES END. • Replace the Main board. Troubleshooting 6 - 30 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 148: F Time-Out Occurs Between The Printer And The Operator Panel (Error 80)

    Main board properly. • Is the connecting cord defective? • Replace the connecting cord. • Replace the operator panel assembly. • Is the printer recovered? • Replace the Main board. • END. Troubleshooting 6 - 31 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 149: Communications With The Host Cannot Be Performed Via The Parallel Interface

    Is there any defect in the cable (broken or bent pin, broken wire)? • Replace the parallel interface cable. • Replace the Main board or ask the user to check the hardware and software at the host side. Troubleshooting 6 - 32 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 150: Data Cannot Be Received Through The Oki Hsp Interface

    Ask the user to replace the interface board (option). • Replace the Main board. • • A trouble may exist in the interface board (option), interface cable or host side. Ask the user to check these items. Troubleshooting 6 - 33 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 151: Synchronous Serial I/O Error (Error 74)

    Is there +30V on pins 19 and 20 of POWER connector on the main board? • Replace the Power/sensor board. • Replace the Main board. • Is the printer recovered? • Replace the Power/sensor board. • END. Troubleshooting 6 - 34 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 152: Image Troubleshooting

    Blank paper vertical direction images as a whole density Cyclical defect White belts or Snowy print of Blockly faded print streaks in the highdensity pattern vertical direction Fig. 6-4 Abnormal images Troubleshooting 6 - 35 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 153: Image Are Light Or Blurred

    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.) • Replace the Main board or Power/Sensor board. Troubleshooting 6 - 36 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 154: Dark Background Density

    FORM FEED and ENTER keys. Set the LED head drive time. (Refer to Section 4.2.) • Replace the Main board or Power/Sensor board. Troubleshooting 6 - 37 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 155: Black Belts Or Stripes In The Vertical Direction

    FORM FEED and ENTER keys while powering on the printer . Set the LED head drive time. (Refer to Section 4.2.) • Replace the Main board or power/sensor board. Troubleshooting 6 - 38 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 156: Cyclic Error

    After replacing the fusing unit assy, set the printer in the engine maintenance mode by turning the power on while pressing the FORM FEED and ENTER keys, and reset the fuser counter. (Refer to See 4.1.) Troubleshooting 6 - 39 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 157: Print Voids

    FORM FEED and ENTER keys. Set the LED head drive time. (Refer to Section 4.2.) • Replace the Main board or Power/sensor board. Troubleshooting 6 - 40 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 158: Poor Fusing

    Adjust the contact of the fusing unit assy to contact the contact assembly properly. • Replace the fusing unit assy. • Has the trouble been removed? • • Replace the Main board or power/sensor board. Troubleshooting 6 - 41 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 159: White Belts Or Streaks In The Vertical Direction

    After replacing the image drum cartridge, set the printer in the user maintenance mode by turning the power on while pressing the MENU key. Reset the drum counter. (Refer to User’s Manual.) • No Replace the Main board or power/sensor board. Troubleshooting 6 - 42 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 160: Snowy Print Of High Density Pattern

    Is the lens of the LED head dirty? • Clear the lens. • Is the LED head installed properly? • Install the head properly. Decrease the printer setting number (±0 →–1) (Refer to User's manual.) • Troubleshooting 6 - 43 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 161 Figure 6-5 Troubleshooting 6 - 44 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 162 Figure 6-6 Troubleshooting 6 - 45 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 163 This page was intentionally left balnk. Troubleshooting 6 - 46 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 164: Wiring Diagram

    WIRING DIAGRAM Interconnect Signal Diagram Wiring Diagrams 7 - 1 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 165: Pcb Layout

    PCB Layout Main board (BOARD-COM) Wiring Diagrams 7 - 2 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 166 Power Supply board Driver board (AOLC-PCB) Wiring Diagrams 7 - 3 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 167 PostScript board (BOARD-PSBA) (OKIPAGE16n/PS only) Wiring Diagrams 7 - 4 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 168 Unit Circuit Diagram Illustration Resistance Orange Yellow Between pins 1 and 2: 6.7Ω Registration motor Between pins 3 and 4: 6.7Ω Brown Black Brown Oragne Between pins 1 and 2: 4.3Ω Drum motor Between pins 3 and 4: 4.3Ω Yellow Thermostat Heater Between pins 1 and 2: 220kΩ...
  • Page 169 Unit Circuit Diagram Illustration Resistance Orange Yellow Between pins 1 and 2: 6.7Ω Hopping motor Between pins 3 and 4: 6.7Ω Brown Black +38 V Yellow FANALM-N Between pins 1 and 2: 4.9KΩ Black...

  • Page 170: Program/Font Rom Location

    Program/Font ROM Location BOARD-COM FRONT Fuse (EVEN) (ODD) LH537U02 LH537U01 NOTE: If the fuse on this board opens, the operator panel display will display the message INPUT JAM TRAY 1. Wiring Diagrams 7 - 7 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 171 This page was intentionally left blank. Wiring Diagrams 7 - 8 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 172: Parts List

    Locate the part and its part number in this section. Current Part Numbers Okidata has made every effort to include current part numbers in this Service Manual at the time of publication. However, technical information frequently changes. These changes often include new or modified parts, with new or modified part numbers.

  • Page 173: Printer Unit (Figure 8-1 )

    Printer Unit (Figure 8-1 ) Parts List 8 - 2 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 174 PCB: COM (Main) w/o ROM PCB: PSBA (PostScript) 4YA4046-1632G011 55079601 8174624M0001 F/W Rev. Program/font ROM (ODD) Program/font ROM (EVEN) 8174624M0002 F/W Rev. 8174624M0004 PostScript ROM (ODD) 8174624M0003 PostScript ROM (EVEN) Parts List 8 - 3 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 175 9 14...
  • Page 176 51608601 Spring: Bias (Backup A4) 4PP4043-4388P1 50928502 Guide: Fusing (A4) 2PP4076-5021P1 51016001 Gear: Idle Exit 4PP4043-4532P1 51234601 Fusing Assy (120 V) 1YX4076-5100G1 50219901 Fusing Assy (230 V) 1YX4076-5100G2 50219902 Parts List 8 - 5 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 177 9 14...
  • Page 178 Feeder: Front Unit 1YX4076-5300G1 50115901 Damper: Stacker Cover 4PB4076-5015P1 53350401 Film: Anti-static 3PB4083-6089P4 52203804 Spring: Inlet Sensor 40033001 40033001 Cord: Connector 11 Pin 4YS4011-4463P1 56731001 Cord: Connector (FF) 4YS4011-4448P3 56730803 Parts List 8 - 7 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 179: Front Feeder Unit (Figure 8-3 )

    Front Feeder Unit (Figure 8-3 ) Parts List 8 - 8 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 180 4PB4078-1412P1 56212901 Lever: Cover Lock 3PP4076-5389P1 50809801 Spring: Separator (FF) 4LB-190500-5 50925905 Spring: Paper Supply (FF) 4PP4043-4742P1 50932101 4PP4076-5391P1 50932201 Spring: (Lock lever) Bearing: Hopping Roller Assy 4PP4076-5308P1 51608201 Parts List 8 - 9 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 181: Base Unit (Figure 8-4 )

    Base Unit (Figure 8-4 ) Parts List 8 - 10 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 182 Cord: AC (IPL 240V) 56625802 Cord: Connector (7 pin) 4YS4011-4448P3 56730803 Plate: Frame Ground Link 4PP4076-5742P1 53346601 Rail: Guide L (Assy) 1PA4076-5410G1 51016701 Rail: Guide R (Assy) 1PA4076-5420G1 51016801 Parts List 8 - 11 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 183 This page was intentionally left blank. Parts List 8 - 12 OKIPAGE 16n Service Manual, P/N 59274401...

  • Page 184: Appendix A: Centronics Parallel Interface

    (A Shielded cable composed of twisted pair wires is recommended for noise prevention.) • IEEE-1284 compatible cable is strongly recommended and is required for use with Windows 3.1x and Windows 95 Enhancement Software. Note: Cable is not supplied. Centronics Parallel Interface A - 1 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 185 ← PR End of paper or during alarm FAULT Signal ground (Not used) High level (3.3 kΩ) → PR Request to change Mode Select In • Connector pin arrangement Centronics Parallel Interface A - 2 OKIPAGE 16n Service Manual, P/N 59274401...
  • Page 186 6) Timing charts Data receiving timing DATA 1 ~ 8 1µs min 1µs min DATA STROBE 1.63 ~ 3.26µs 1 ~ 500µs 0 ~ 0.5µs BUSY 1.63µs 3.26µs Centronics Parallel Interface A - 3 OKIPAGE 16n Service Manual, P/N 59274401...
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  • Page 188: Appendix B: High Capacity Second Paper Feeder Maintenance

    This appendix describes the field maintenance methods for High Capacity Second Paper Feeder option of OKIPAGE16n / OKIPAGE16n/PS Page Printer. Refer to the USER'S MANUAL for the equipment handling and operation methods. High Capacity Second B - 1 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 189: Outline

    External View and Component Names Motor assy Upper plate Second side frame (R) assy Control board (AOLT-PCB) Hopping roller assy Cassette assy Second side frame (L) assy Front panel assy High Capacity Second B - 2 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 190: Mechanism Description

    Planet gear D' Hopping motor Idle gear Once the delivered into the printer, the paper is then controlled and fed through by registration motor of the printer. High Capacity Second B - 3 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 191: Hopper Mechanism

    Printer Back up Feed roller roller Idle roller Transfer roller High Capacity Second Paper Feeder Hopping roller High Capacity Second B - 4 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 192: Parts Replacement

    (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. High Capacity Second B - 5 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...
  • Page 193 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 High Capacity Second B - 6 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 194: Parts Layout

    Control board (AOLT-PCB) Idle roller Front panel Upper plate Hopping gear (One-way) Feed gear (One-way) Second side frame (L) Second side frame (R) Hopping roller Feed roller High Capacity Second B - 7 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 195: Parts Replacement Methods

    Second Paper Feeder Idle rollers (3.3.1) AOLT-PCB (3.3.2) Hopping motor (3.3.3) Feed roller (3.3.4) Hopping roller rubber (3.3.5) Side frame (L) assy (3.3.6) Side frame (R) assy (3.3.7) High Capacity Second B - 8 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 196: Idle Rollers

    3.3.1 Idle rollers (1) Remove two screws 1 and remove the front panel assy 2. (2) Remove two idle rollers 3. High Capacity Second B - 9 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 197: Aolt-Pcb

    AOLT-PCB (1) Remove the screw 1 and remove the PCB cover 2. (2) Remove three connectors 3 and two screws 4, then remove the AOLT-PCB 5. High Capacity Second B - 10 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 198: Hopping Motor

    4 and the connecting lever 5, as well as the wave washer 6 all come off at the same time, so be careful not to lose them. (4) Remove two screws 7 and remove the hopping motor 8. High Capacity Second B - 11 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 199: Feed Roller

    (5) Remove the latch on the feed roller bearing 2 and remove the feed roller bearing 2. (6) Shift the feed roller 3 to the right side and lift it out, holding it on the left side. High Capacity Second B - 12 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 200: Hopping Roller Rubber

    (3) Remove the latch on bearing L 3 and remove the bearing L 3. (4) Remove the hopping roller 4 and remove the hopping roller rubber 5 from it. High Capacity Second B - 13 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 201: Side Frame (L) Assy

    (4) Remove the cassette lock spring 5, link 6, pull block 7 (note the directions of the hooks of the cassette lock spring 5). (5) Remove the spring 9 and cassette stopper 0. (6) Remove the screw A and remove the link support B. High Capacity Second B - 14 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 202: Side Frame (R) Assy

    (6) Remove the screw A and remove the link support B. (7) Remove the screw C and remove the detector spring D. (8) Remove the screw E and remove the AOLD-PCB F. High Capacity Second B - 15 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...
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  • Page 204: Troubleshooting

    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. High Capacity Second B - 17 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 205: Lcd Status Message List

    Replace interface timeout between ERROR CONTROLLER the square-shaped connector if nec- the printer and the High essary. Capacity Second Paper • Replace AOLT-PCB. Feeder. High Capacity Second B - 18 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...
  • Page 206 • YES Check the coil resistance (approx. 4.3Ω) of the stepping motor. Is it normal? • NO Replace the stepping motor. • YES Replace the AOLT-PCB. High Capacity Second B - 19 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 207: Connection Diagram

    Connection Diagram Interconnection Diagram Hopping motor 1 OP-M1A 2 OP-M1B CN24 3 OP-M2A 4 OP-M2B AOLT - PCB CN22 CN23 To Printer To Cassette switch board (AOLD-PCB) High Capacity Second B - 20 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 208: Pcb Layout

    PCB Layout AOLT-PCB High Capacity Second B - 21 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 209: Parts List

    Parts List High Capacity Second B - 22 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...
  • Page 210 4PP4076-5717P1 53346701 Bushing: ADF (2nd Tray) 4PP4076-3949P1 51607301 Plate: FG Shaft (2nd Tray) 4PP4076-5719P1 53346801 Cassette: Paper Assy 70027701 Frame: Sep Assy 2nd Tray 3PP4083-5663G1 53345601 High Capacity Second B - 23 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...
  • Page 211 This page was intentionally left blank. High Capacity Second B - 24 OKIPAGE 16n Paper Feeder Service Manual, P/N 59274401...

  • Page 212: Appendix C: Multi Feeder Maintenance

    This section is intended for the service personnel and describes the field maintenance methods for Multi Feeder option of OKIPAGE16n / OKIPAGE16n/PS LED Page Printer. Refer to the USER'S MANUAL for equipment handling and operation methods. Multi Feeder C - 1 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 213: Outline

    External View and Component Names Link Hopper cover Paper stay Roller (A) Paper guide (R) Upper cover Paper supporter Roller (B) Paper guide (L) Square-shaped connector Cover frame Multi Feeder C - 2 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 214: Mechanism Description

    A, preventing any feeding of papers by roller A. Planet gear F Hopping motor Idle gear J Paper Roller B Pulley I Belt Roller C Roller A Multi Feeder C - 3 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 215: Hopper Mechanism

    Hopper Mechanism The hopper automatically feeds the printer with the paper being set, single sheet at a time. Multi Feeder Printer Roller (B) Roller (A) Roller (C) Registration roller Multi Feeder C - 4 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 216: Parts Replacement

    (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. Multi Feeder C - 5 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...
  • Page 217 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 Multi Feeder C - 6 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 218: 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) Multi Feeder C - 7 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 219: Parts Replacement Methods

    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 & Feed roller (3.3.8) Multi Feeder C - 8 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 220: Separator

    C, as shown in the right figure. 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. Multi Feeder C - 9 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 221: Aole-Pcb

    (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 Multi Feeder C - 10 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 222: Square-Shaped Connector

    1. The square connector 2 should be horizontal to the cover frame 5. 2. The square connector 2 should be hooked on the connector spring 4 and move smoothly. Multi Feeder C - 11 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 223: Hopping Motor

    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. Multi Feeder C - 12 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 224: 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. Multi Feeder C - 13 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 225: Roller B

    The bearing 3 also comes off at the same time, so be careful not to lose it. Further, pay special attention to make sure that you do not damage the sensor lever 4 while going through this procedure. Frame Plate Engaging section Multi Feeder C - 14 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 226: Roller A

    (7) Move the roller A 8 to the right, lift its left side, and then pull it off to the left. (Be careful not to lose the shaft 7 being removed together. Belt Carrier roller assy Multi Feeder C - 15 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 227: Mini Pitch Belt & Feed Roller

    (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. Multi Feeder C - 16 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 228: Troubleshooting

    Problem occurs Problem displayed by Troubleshooting Carry out detailed the LCD message according to the LCD troubleshooting Status Message List according to the (see 4.3.1) Troubleshooting Flow (see 4.3.2) Multi Feeder C - 17 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...
  • Page 229 • Verify connection of AOLE-PCB and Interface Timeout square-shaped connector. ERROR CONTROLLER interface timeout between Replace the square-shaped connec- the printer and the Multi tor if necessary. Feeder. • Replace AOLE-PCB. Multi Feeder C - 18 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...
  • Page 230 Connect the connector cable properly. • YES Check the coil resistance (approx. 32Ω) of the stepping motor. Is it normal? • NO Replace the stepping motor. • YES Replace the AOLE-PCB. Multi Feeder C - 19 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 231: 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 Multi Feeder C - 20 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 232: Pcb Layout

    PCB Layout AOLE-PCB Multi Feeder C - 21 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 233: Parts List

    Parts List Multi Feeder C - 22 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...
  • Page 234 51304901 Roller: Feed (MPrps Fdr) 4PB4043-4743P1 50409701 PCB: AOLE (MPrps Fdr) 4YA4046-1647G11 55077601 Connector: Square Shaped 220A1866P0141 56730641 Cord: Connector (MPFdr) 4YS4011-4448P4 56730804 Gear: Stirrer Roller 4PP4083-2394P1 51239301 Multi Feeder C - 23 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...
  • Page 235 This page was intentionally left blank. Multi Feeder C - 24 OKIPAGE 16n Maintenance Service Manual, P/N 59274401...

  • Page 236: Appendix D: Localtalk Serial Interface (Okipage16N/Ps Only)

    RxD- Receive data minus polarity ← PR Transmit data plus TxD+ Transmit data plus polarity – (Not used) → PR Receive data plus RxD+ Receive data plus polarity LocalTalk D - 1 OKIPAGE 16n Serial Interface Service Manual, P/N 59274401...
  • Page 237 Receiving circuit 26LS30 or equivalent DIFFERENTIAL OUTPUT INPUT ENABLE b) Transmitting circuit 26LS32 or equivalent DIFFERENTIAL OUTPUT INPUT 6) Receive margin 7) Communication protocol • LocalTalk I/F LocalTalk protocol LocalTalk D - 2 OKIPAGE 16n Serial Interface Service Manual, P/N 59274401...
  • Page 238 OKIPAGE 16n Service Manual Part Number 59274401 Printed in the USA...

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