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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.

3) Table of parallel I/F signals

Connector pin arrangement

Summary of Contents for OKIPAGE 20

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: ...raining Manual 03 20 98 Note This Adobe Acrobat version of the Okidata Service Training Manual was built with the pictures rendered at 300 dpi which is ideal for printing but does not display well on...

Page 3: ...process 15 2 3 3 Process operation descriptions 16 2 3 4 Revision of LED Head Illumination 17 2 4 Paper Jam Detection 18 2 5 Cover Open 19 2 6 Toner Low Detection 20 2 7 Stacker full Detection 21 2 8...

Page 4: ...3 3 30 Guide Assy Cassette R 57 4 Adjustment 4 0 Adjustment 58 4 1 Maintenance Mode and Functions 59 User maintenance mode 60 System maintenance mode 61 Engine maintenance mode 62 4 1 1 User maintenan...

Page 5: ...terface 93 C Duplex Unit 1 OUTLINE 94 1 1 Functions 95 1 2 External View and Component Names 96 2 0 Mechanism Description 97 2 1 General Mechanism 98 2 2 JAM Release Mechanism 99 2 3 Removing Installi...

Page 6: ...3 3 6 Connector IMSA 9714N 14B Connector IMSA 9714N 14A 136 3 3 7 Frange pulley pulley Idle Mini pitch belt Plate Earth shaft Gear double Tray switch assy 137 3 3 8 Roller feed 138 3 3 9 Bracket sub r...

Page 7: ...4 Hopping Motor 165 3 3 5 Planet gear 166 3 3 6 Roller B 167 3 3 7 Roller A 168 3 3 8 Mini pitch belt Feed roller 169 4 0 Troubleshooting 170 4 1 Precautions Prior to the Troubleshooting 171 4 2 Prep...

Page 8: ...hic ITC Zapf Chancery ITC Zapf Dingbats and ITC Bookman are registered trademarks of International Typeface Corporation HP and LaserJet are registered trademarks of Hewlett Packard Company Diablo 630...

Page 9: ...nd 20DX 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 Divi...

Page 10: ...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 Partn...

Page 11: ...nents 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 ri...

Page 12: ...ter 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...

Page 13: ...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...

Page 14: ...ethod Dry electrophotography LED stationary head 5 Paper used Type Standard paper Xerox 4200 20 lbs Application paper manual face up feed Label Envelope OHP paper transparency Size Standard sizes Lett...

Page 15: ...g Storage Unit Temperature 50 90 10 32 32 110 0 43 14 110 10 43 o F o C Humidity 2 80 10 90 10 90 RH Maximum wet bulb temperature 77 25 80 4 26 8 o F o C Minimum difference between wet and dry bulb te...

Page 17: ...ter 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 t...

Page 18: ...on 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 f...

Page 19: ...o the portion which may cause an injury to human body Follow the instructions on warning labels during maintenance Copyright 1997 Okidata Division of OKI America Inc All rights reserved See the OKIDAT...

Page 20: ...decodes and edits the data and stores the edited data in a memory After completing edition of one page of data it references the font memory and generates bit data on the same memory At the same time...

Page 22: ...paper running and paper size Serial I O Port Control of serial interface between controller and operator panel EEPROM Control of a serial interface between controller and power supply board I O Port...

Page 23: ...ntrol of serial interface between controller and Duplex unit Motor driver controller Control of Hopping motor I O port Inputting of various sensor signals Output of various control signals 6 Host inte...

Page 24: ...protocol is supported for the serial interface conforming to EIA RS232C READY BUSY DTR HI or DTR LO X ON X OFF RBST X ON For the electrical physical characteristics of the interface see APPENDIX B c...

Page 25: ...9 PS ROM module PS ROM module is BOARD MSM or BOARD FSL BOARD MSM consists of MASK ROM BOARD FSL consists of Flash ROM 8MB Pin layout Basic specification Type 72 pins SIMM 32 bits buss width Access t...

Page 26: ...he following voltages necessary for electrophotographic process from 30 V according to the control sequence from the main control board When cover open state is detected 30 V supply is automatically i...

Page 27: ...ion of the paper Monitors the paper feeding situation ON Paper exists OFF No paper exists Outlet sensor Monitors the paper feeding and size according to the time of arrival to and leaving the past the...

Page 28: ...ng to the control sequence from the control board When cover open state is detected 30 V supply is automatically interrupted to stop the supply of all the high voltage outputs Copyright 1997 Okidata D...

Page 29: ...ess 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...

Page 30: ...e on the sensitive drum using a electrostatic latent image formed by the LED head 2 Hopping motor This motor is a pulse motor of 48 steps rotation that is two phase excited by the signal from the cont...

Page 31: ...his AC voltage heats the heater The control board supervises the heat roller temperature via the thermistor and regulates the heater roller at a predetermined temperature 185 C Normal paper MEDIA TYPE...

Page 32: ...tracted to the electrostatic latent image by static electricity making the image visible At the same time the residual toner on the image drum is attracted to the developing roller by static electrici...

Page 33: ...Figure 2 5 Figure 2 6...

Page 35: ...pping 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 Gear C a...

Page 36: ...ed up to the wedge space formed by the Regist Roller and the Pressure Roller so that to align the skew of paper 3 During the paper fed from the 1st tray the build in clutch of Gear C is idled and not...

Page 37: ...ed until the Inlet Sensor turns off 2 Aligning After turning on the Inlet Sensor the paper fed by a predetermined length and choked up to the wedge space formed by the Regist Roller and the Pressure R...

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Page 39: ...in direction c the regist roller would not rotate because the clutch regist is turned off After the completion of hopping turn on the clutch regist to drive the regist roller The regist roller would...

Page 40: ...octor blade forming a thin coat of toner on the developing roller surface 3 Toner is attracted to the exposed part low potential part of the image drum at the contact between the image drum and the de...

Page 41: ...Teflon coating incorporates a 750W heater Halogen lamp which heats the heat roller A thermistor which is in contact with the heater roller regulates the heater roller at a predetermined temperature ab...

Page 42: ...sed 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...

Page 43: ...ead is shown below The LED correcting head is a 600 dpi head with the LED drivers located on both sides of the LED array with a 300 dpi pitch spacing The printing and correction data obtained from the...

Page 44: ...irection of decrease For this reason the LED correction data is a 4 bit data for each dot The relationship between the LED correction data and LED current correction steps with the LED driver used in...

Page 45: ...ied out in the following sequence First the printing data DATA3 through DATA0 are stored sequentially shifted in the shift registers of the LED drivers by the printing data synchronous clock CLOCK The...

Page 46: ...r within a predetermined leading edge of the paper has passed over the paper sensor The leading part of paper does not reach the outlet sensor within a predetermined distance after the paper has reach...

Page 47: ...ltage power supply circuit As a result all high voltage outputs are interrupted At the same time the CVOPN signal is sent to the control board to notify it of the off state of the microswitch and the...

Page 48: ...tirring 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 Operation during toner full state...

Page 49: ...detected When the toner low state is detected 2 times consecutively Toner Low is established When the toner full state is detected 2 times consecutively Toner Low is canceled When there is no change...

Page 50: ...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 Se...

Page 51: ...ed into the printer the state of the tab pieces is detected by the microswitch to recognize the paper size State of Microswitches SW1 SW2 SW3 SW4 Paper size 0 1 1 1 Letter 0 1 0 1 Executive 0 0 1 1 A4...

Page 52: ...stScript Level II program and its fonts BOARD MSM consists of Mask ROM BOARD FSL consists Flash ROM Mask ROM and Flash ROM is used as the program font ROM s 2 EEPROM The EEPROM has a 4 kbit capacity a...

Page 53: ...ment 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...

Page 54: ...witch of the printer 2 Do not try disassembly as long as the printer is operating normally 3 Do not remove unnecessary parts try to keep the disassembly to a minimum 4 Use specified service tools 5 Wh...

Page 56: ...Page 26 Service Manual OKIPAGE20 Chapter 3 Parts Replacement...

Page 57: ......

Page 59: ...sembly 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 3 3 8 Cable...

Page 60: ...EP lock shaft 3 3 23 LEVER Assy Out Sensor 3 3 24 Toner sensor lever 3 3 25 Paper sensor lever 3 3 26 Inlet sensor lever 3 3 27 Power supply unit 3 3 28 Lever Paper end Lever Paper near end 3 3 29 Gu...

Page 61: ...outlet 2 Disconnect the Interface Cable 1 3 Open the face up stacker assy 2 unhook the right and left projections and then remove the face up stacker assy 2 Copyright 1997 Okidata Division of OKI Ame...

Page 62: ...he assy side L 3 2 Unscrew 2 screws 4 and remove the plate contact 5 and contact Assy 6 Note Don t deform the electrode plates of the contact assy 6 Copyright 1997 Okidata Division of OKI America Inc...

Page 63: ...over assy side L See 3 3 2 1 2 Remove the DC fan motor 1 by pulling out the connector of DC fan motor 1 Copyright 1997 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business...

Page 64: ...cker assy 2 unscrew 2 screws 3 and remove the cover side I F 4 3 Remove 2 screws 5 and flexible cable 6 to remove the operator panel assy 7 Copyright 1997 Okidata Division of OKI America Inc All right...

Page 65: ...ws 1 and remove the cover side R 2 3 Unscrew 2 screws 3 and remove plate shield 4 4 Unscrew 3 screws 5 and 2 screws 6 unplug all the connectors 7 and remove Board AAA 8 Copyright 1997 Okidata Division...

Page 66: ...over rear A 6 Unscrew 2 screws 1 and cover frame 2 7 Unscrew 3 screws 3 and remove the plate assy side R 4 8 Remove the lever back up release 5 and unlock the engagement of the projection on the right...

Page 67: ...Partner Exchange BPX for any updates to this material http bpx okidata com...

Page 68: ...four screws 1 Remove stacker mount 2 by releasing the tabs at position 2A 4 Remove Sensor stacker full 3 by releasing spreading the plastic tabs on each side of sensor Assy 3 and lifting switch from...

Page 69: ...See 3 3 6 3 Unscrew 2 screws 1 release tabs at portion 1A Remove cable cover 2 guide film 3 Note Use care when replacing cable cover Do not pitch crimp or cut cables or protective sheet Copyright 199...

Page 70: ...ent 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...

Page 71: ...2 Stand the manual feed assy 1 on end and unhook the engagements with both right and left manual feed hopper stays 3 Remove the OP panel assy See 3 3 4 4 Unscrew 5 screws 2 and remove the feeder unit...

Page 72: ...ee 3 3 10 2 Remove an E ring 3 gear assy clutch 4 and four screws 1 in this order and lifting out the roller assy regist 2 Copyright 1997 Okidata Division of OKI America Inc All rights reserved See th...

Page 73: ...ove the plate FG F 1 6 Remove the TR gear 2 and roller transfer 3 7 Unscrew 7 screws 4 and remove the main frame 5 8 Unlock latches at two points of the lever back up release 6 and pull out it in righ...

Page 75: ...moved 2 Remove the cover rear 2 See 3 3 6 5 3 Loosen 2 screws 1 unlock the both side s latches and remove the cover rear 2 4 Unlock the latches on both sides of the guide assy eject 3 and lifting it o...

Page 76: ...ow by lifting the right side first Note As the heat assy 4 becomes high temperature soon after the power is turned off start the work after it cools off sufficiently Carry out a reset of the counter a...

Page 77: ...e gear roller C 1 and bush 2 warp a part of the plate FG BK 3 Take off the carrier bearing 4 and remove the roller feed c 5 in the direction of the arrow Note Be careful not to deform a part of the pl...

Page 78: ...emove the lever back up release See 3 3 12 8 3 Unlock the engagement with the plate FG BK 1 and lift out the roller heat assy 2 Copyright 1997 Okidata Division of OKI America Inc All rights reserved S...

Page 79: ...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 Exc...

Page 80: ...Open the hooks of the cover stacker 1 in the direction of the arrow and remove the LED head 4 4 Pull out the head spring 5 from the post Note Don t remove two LED cable 3 from the PC connector 2 Copy...

Page 81: ...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 Busines...

Page 82: ...e Assy Cassette 1 from the printer See 3 3 19 1 3 Release two locks and remove frame assy separation 2 At this time coil spring 3 is also remove Be careful not to lose this spring Copyright 1997 Okida...

Page 83: ...directly on the desk and so on When placing it lay a paper and the like under it 3 Remove right and left 2 bearings 3 from the frame main by sliding them inside while pushing them At this time 2 trans...

Page 84: ...ee 3 3 12 7 3 Remove screw 1 Turn EP lock lever L Assy 2 in the direction of arrow A 4 Remove spring 3 5 Drop EP lock shaft 4 down and turn in the direction of arrows B and remove it Copyright 1997 Ok...

Page 85: ...2 Remove the frame main See 3 3 12 7 3 Press the clamp part of LEVER Assy Out Sensor 1 Remove the LEVER Assy Out Sensor 1 by pushing it upward from the lower side Copyright 1997 Okidata Division of OK...

Page 86: ...2 Remove the frame main See 3 3 12 7 3 Squeeze the clamp part of toner sensor lever 1 and remove the toner sensor lever 1 by pushing it upward from the lower side Copyright 1997 Okidata Division of OK...

Page 87: ...Remove the frame main See 3 3 12 7 3 Squeeze the clamp part of the paper sensor lever 1 and remove the paper sensor lever 1 by pushing it upward from the lower side Copyright 1997 Okidata Division of...

Page 88: ...outlet 2 Remove the frame main See 3 3 12 7 3 Squeeze the clamp part of two inlet sensor levers 1 Remove the inlet sensor levers 1 by pushing them downward Copyright 1997 Okidata Division of OKI Ameri...

Page 89: ...3 3 12 7 3 Unscrew 2 screws 1 and remove the BRACKET AC 2 4 Unscrew 10 screws 3 and remove the connector 6 remove the Power supply unit AC DC 120 230V 4 and Power supply unit High voltage 5 Copyright...

Page 90: ...emove the GEAR Z38 14 ADF Bearing 15 ROLLER Guide 16 and SHAFT Hopping 17 and Bracket Sub roller 28 At this time the Kock Pin 18 can also be detached simultaneously 8 Remove two screws 7 and then remo...

Page 92: ...sy Hopping See 3 3 28 5 4 Unscrew two screw 1 and then remove Guide Assy Cassette L 2 5 Remove SPRING Sheet 3 and then remove LINK Sheet 4 and pull block 5 Pay attention the direction of hook of SPRIN...

Page 94: ...ook of SPRING Sheet 3 6 Remove spring 6 and then remove cassette stopper 7 7 Remove screw 8 from LINK Sheet 4 and then remove link support 9 and Roller link 10 8 Unscrew two screws 11 and remove the S...

Page 96: ...set with the key operation on the operator panel This printer has three kinds of the maintenance mode it is required to select one of the maintenance mode necessary when replacing a part 4 1 Maintenan...

Page 97: ...stment 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 an...

Page 98: ...t Hex dump Drum counter reset Resource Save Second Third Front Tray Receive Buffer Size Operator panel menu disable X adjust Y adjust Duplex Adjust Select paper source command parameter Page placement...

Page 99: ...RECOVER key Function There are 8 functions as follows Page count display Page count printing enable disable Rolling ASCII continuous printing RS232C LOOP TEST EEPROM reset HSP ERROR recovery HSP ERRO...

Page 100: ...Drum counter total display Drum count display Setting of standard paper feed length Setting of front feeder paper feed length Setting of second tray paper feed length Selection of second tray feeder d...

Page 101: ...ing can be activated manually be pressing the Form Feed key after selecting the OFF LINE mode by pressing the ON LINE key Automatic activation of printing even when the received data is less than one...

Page 102: ...mmand parameter Front tray The function which sets the parameter selecting the front tray by paper source command on PCL 13 Page placement The function which aligns a printing image to the right 14 SE...

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Page 106: ...of menu printing 3 Rolling ASCII continuous printing The rolling ASCII pattern is printed continuously for various engine tests Press the ON LINE key to cancel this mode 4 RS232C LOOP TEST Performs a...

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: ...HEADTYPE AUTO is selected 4 Head strobe time at 600 x 1200 dpi This function sets head strobe time at 600 x 1200 dpi 5 Printing start position setting Sets the printing start position 6 Drum count tot...

Page 110: ...table for the Multi Feeder 16 Setting of duplex feed length This function sets the paper feed length of the duplex 17 Fuser count display Displays on the LCD the total number of printed pages counted...

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Page 113: ...e Disable of Total Number of Menu Print Correction head type excluding the time upon engine maintenance engine reset Receive buffer Enable Disable of Switching SIDM Emulation LED head drive time exclu...

Page 115: ...Cartridge Reset the image drum counter Refer to User s Manual Fuser Unit Reset the fuser counter Refer to Chapter 4 2 1 4 2 1 Resetting the fuser counter 4 2 2 Destination setting Copyright 1997 Okid...

Page 116: ...pressed turn the printer power on Press the MENU key until FUSER COUNT RESET is displayed Press the ENTER key to reset the fuser count After the initializing process is completed the printer enters in...

Page 117: ...cording to the following table Destination Keys to be depressed ODA MENU OEL MENU OKI INT A Australia etc MENU PAPER SIZE OKI INT L Singapore etc MENU TRAY TYPE This function shall not be open for use...

Page 118: ...ables Heat Assy 200 000 Maintenance Kit Transfer Roller 200 000 Maintenance Kit Back up Roller Assy 200 000 Maintenance Kit Feed Roller Assy 200 000 Maintenance Kit Hopping Roller Assy 200 000 Mainten...

Page 119: ...ece of cloth when necessary 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...

Page 120: ...ipes 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 Copyright 1997 Okidata Divis...

Page 121: ...the paper powder by LED LENS CLEANER and remove the paper powder 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 Divis...

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 Am...

Page 123: ...nd the routine replacement part image drum cartridge been replaced properly 3 Is the paper normal See paper specifications section 4 Has the image drum cartridge been loaded properly Copyright 1997 Ok...

Page 124: ...t expose the image drum to direct sunlight 3 Keep hands off the fuser unit as it is heated during operation 4 Do not expose the image drum to light for longer than 5 minutes at room temperature Copyri...

Page 125: ...er 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 Ameri...

Page 126: ...dures 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 Ex...

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...

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Page 138: ...ooting 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 EE...

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Page 142: ...JAM error...

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Page 152: ...e light or blurred as a whole Figure 6 4 A 1 Dark background density Figure 6 4 B 2 Blank paper is output Figure 6 4 C 3 Black belts stripes in the vertical direction Figure 6 4 D 4 Cyclical defect Fi...

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Page 154: ...5 Cyclical error Frequency Remedy Image drum 3 17 94 2 mm Replace or clean the image drum cartridge...

Page 155: ...ller Heat roller 3 46 88 mm Replace the fusing unit assy Back up roller 3 46 88 mm Replace the back up roller Notes 1 After replacing the image drum cartridge set the printer in the user maintenance m...

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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: ...e 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 b...

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: ...er 7 Wiring Diagram Unit Circuit Diagram Illustration Resistance Hopping motor Between pins 1 and 2 6 7 ohms Between pins 3 and 4 6 7 ohms Fan Copyright 1997 Okidata Division of OKI America Inc All ri...

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: ...ice 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...

Page 168: ...Manual Feed Assy 1 1 3 6 11 40027002 ROLLER Transfer 1 1 3 6 12 4PP4076 5042 P001 TR Gear 1 1 3 6 13 40378001 Contact Assy 1 1 3 6 14 40378401 CASE Assy Cassette 1 1 3 6 15 40607101 Frame Assy Separat...

Page 169: ...ice 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...

Page 170: ...r Sensor Lever Adhesive 1 0 3 6 13 40583801 LEVER Assy Out sensor 1 0 3 6 14 40324001 SPRING Out Sensor 1 0 3 6 15 4PP4076 5047 P001 EP Lock Shaft 1 0 3 6 16 4PA4076 5048 G001 EP Lock Lever L Assy 1 0...

Page 171: ...HEAT Assy A4 230V 1 2 10 20 52 40306401 LAMP Halogen 750W 120V 1 2 5 10 40306402 LAMP Halogen 750W 230V 1 2 5 10 53 40307401 GUIDE Assy Eject 1 1 3 6 54 4PP4076 5191 G001 Damper Arm Caulking 1 1 3 6 5...

Page 172: ...ice 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...

Page 173: ...nance 13 40349101 Lever Link Caulking 1 1 3 6 14 40368302 Board PXC 1 1 3 6 15 2201000P0140 Connector IMSA 9714N 14A 1 0 3 6 16 4YS4011 4448 P003 Nylon Connector Cord 1 0 3 6 To 2nd Tray 17 4PP4076 53...

Page 174: ...67101 BRACKET Spring Sub 1 0 3 6 45 40607301 SPRING Sub Roller 1 0 3 6 46 40313201 ROLLER Assy Feed 1 2 6 12 47 40371901 SPRING Release 1 0 3 6 48 105A1051C200 1 TR 23 11 14 R CORE 3 3 9 18 49 4029800...

Page 175: ...ype 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...

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: ...T PRIME timing when set to the effective INPUT PRIME signal Nibble Mode Conforms to IEEE 1284 spec ECP Mode Conforms to IEEE 1284 spec Copyright 1997 Okidata Division of OKI America Inc All rights res...

Page 178: ...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 Cable shall be shielded Note Cable is not provided 3 Interface s...

Page 179: ...e 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 Am...

Page 180: ...hods for the Duplex Unit option of the OKIPAGE20 Series Page Printer Refer to the USER S MANUAL for operating instructions 1 1 Functions 1 2 External View and Component Names Copyright 1997 Okidata Di...

Page 181: ...printed and re feeding them to the unit for printing other side The main functions are the followings Paper that can be used Paper Type Cut Sheet Size A4 Letter Executive Legal13 Legal14 Special Size...

Page 182: ...ce 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...

Page 183: ...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...

Page 184: ...es in the direction of arrow A a sheet is retracted in the rear of the cassette And then a given time later after the edge of the sheet passes through the IN SNS DUP the roller will reverse and the ro...

Page 185: ...e cassette This enables a jam to be released Structurally the LEVER Release can be pushed up by back edge of cassette and the sheet route automatically close when the cassette is returned Copyright 19...

Page 186: ...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...

Page 187: ...l 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 3 From front side of printer snap fit LEVER Re...

Page 189: ...assembly procedures and for reassembly procedures basically proceed with the disassembly procedures in the reverse order 3 1 Precautions Concerning Parts Replacement 3 2 Parts Layout 3 3 Parts Replace...

Page 190: ...be used 5 Disassembly must be carried out according to the prescribed procedures Parts may be damaged if such procedures are not followed 6 Small parts such as screws and collars can easily be lost th...

Page 191: ...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 upda...

Page 192: ...onents listed in the disassembly order diagram below 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...

Page 193: ...emove the bracket 3 3 Unlatch all the nails and unplug all the connectors 4 to remove the Board LEX 5 Note When installing the Board LEX install it positioning earth plate over the PCB Copyright 1997...

Page 194: ...2 to remove FRAME MAIN DUP 3 Remove the FRAME MAIN DUP by lifting in up from A side 3 Unscrew two screws 4 to unplug the Connector IMSA 9714N 14A 5 Copyright 1997 Okidata Division of OKI America Inc...

Page 195: ...4 Release the lock to remove two BRACKET Pinch 6 and two SPRING Pinch R 9 5 Release the lock to remove LEVER Sensor D IN 10 and SPRING Sensor 11 6 Unplug the Connection Code Wire 12 and remove Photo S...

Page 196: ...nsor F R 1 and two SPRING Sensor F R 2 3 Unplug the Connection Code Wire 3 and remove Photo Sensor 4 4 Take away the SPRING SL 5 and two screws 6 to remove SOLENOID Assy 7 Copyright 1997 Okidata Divis...

Page 197: ...eed RV 8 At this time Knock Pin 9 can be removed simultaneously 5 Unscrew the screw 10 to remove the PLATE Earth BTM 11 6 Disengage the latch and remove two PULLEY MX25 12 Mini Pitch Belt 13 and two B...

Page 199: ...s 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 Partn...

Page 200: ...Obtain detailed information concerning the problem from the user 3 Go through the checking in the conditions similar to that in which the problem occurred Copyright 1997 Okidata Division of OKI Ameri...

Page 201: ...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 Amer...

Page 202: ...h 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 OKIDA...

Page 203: ...everse roller within the Duplex Unit Remove all the papers from the inside of printer unit and Duplex unit and close the cover Jam Error Informs that a jam occurs in impinge feeding papers within the...

Page 204: ...Page 115 Service Manual OKIPAGE20 Chapter C Duplex Unit JAM error Duplex INPUT JAM...

Page 205: ......

Page 207: ...hapter 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...

Page 208: ...ice 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 bp...

Page 209: ...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 htt...

Page 210: ...ice 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 bp...

Page 211: ...4YB4120 1137 P001 FX50 Photo Sensor 2 2 6 12 15 40598001 Core Assy DUPLEX 1 1 3 6 16 2201000P0140 Connector IMSA 9714N 14A 1 1 3 6 17 40375201 Connection Code Wire 1 1 3 6 To IN Sensor 18 40461601 FIL...

Page 212: ...12 42 RE4 SK E Ring 1 1 3 6 43 40339101 LEVER Lock DUP 2 2 6 12 44 40338601 LEVER Release DUP 2 2 6 12 45 40393701 SPRING Support 2 2 6 12 46 40495802 Board LEX 1 2 5 10 W O ROM 47 40521501 Program R...

Page 213: ...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 upd...

Page 214: ...nter automatically The main functions are as followings Applicable media Paper Type Cut Sheet Size A4 A5 B5 Letter Executive Legal13 Legal14 Special Size Paper Width 148 to 216mm Paper length 210 to 3...

Page 215: ...ual 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...

Page 216: ...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 upda...

Page 217: ...fined amount to the regist roller within the printer During the hopping roller is rotating Roller C is racing because it includes one way bearing At the same time planetary gear D shifts in the direct...

Page 219: ...printer one by one When papers are set to the cassette the feeding motion is activated by the hopping motor to send only a top paper which is caught on the brake shoe Copyright 1997 Okidata Division o...

Page 220: ...section describes the removing procedure the installing procedure is basically to conduct the removing one in reverse 3 1 Precautions Concerning Parts Replacement 3 2 Parts Layout 3 3 Parts Replaceme...

Page 221: ...emble any more than necessary 4 Only specified service tools may be used 5 Disassembly must be carried out according to the prescribed procedures Parts may be damaged if such procedures are not follow...

Page 222: ...Partner Exchange BPX for any updates to this material http bpx okidata com...

Page 223: ...d 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 a...

Page 224: ...sy 3 3 2 Board BBB 3 3 3 Lever paper end Lever paper near end 3 3 4 Motor 3 3 5 Connector IMSA 9714N 14B Connector IMSA 9714N 14A 3 3 6 Frange Pulley Pulley Idle Mini Pitch belt Plate Earth shaft Gear...

Page 225: ...y cassette 1 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 O...

Page 226: ...nd 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 a...

Page 227: ...rew 1 to remove the PCB cover bracket 2 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...

Page 228: ...emove roller cover bracket 2 and PLATE Earth L 3 2 Disengage latches to remove the Lever paper end 4 and Lever paper near end 5 Copyright 1997 Okidata Division of OKI America Inc All rights reserved S...

Page 229: ...bracket See section 3 3 4 4 Unscrew seven screws 1 to remove the bottom bracket 2 5 Unscrew five screws 3 to remove the Frame side L assy 4 and Frame side R 5 6 Take away two screws 6 and connector t...

Page 230: ...screw 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 righ...

Page 231: ...he Mini pitch belt 3 and Gear double 4 can be removed simultaneously 4 Disengage latchs to remove the Frange pulley 5 and pulley Idle 6 5 Unscrew a screw 7 to remove the Plate Earth shaft 8 6 Unscrew...

Page 232: ...section 3 3 7 4 Disengage latchs to remove the Feeding bearing 1 5 Disengage latchs to remove the Pulley feed 2 At this time the Gear feed 3 and Bush 4 can be removed simultaneously 6 Remove the Rolle...

Page 233: ...t assy 8 can be removed simultaneously 6 Take away two E ring 9 and pull out the Knock pin 10 to remove the Gear Z38 11 7 Remove two ADF bearing 12 Spring release 13 Bearing F 14 and Space hopping sha...

Page 234: ...3 3 5 2 Remove the Plate Earth BL 1 3 Take away the Spring 2 to remove the Cassette stopper 3 4 Take away the Spring sheet 4 to remove the Pull block 5 At this time Lever link 6 can be removed simult...

Page 236: ...emove the Cassette stopper 3 4 Take away the Spring sheet 4 to remove the Pull block 5 At this time Lever link 6 can be removed simultaneously 5 Unscrew a screw 7 to remove the Link support 8 6 Remove...

Page 238: ...cautions 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 Busines...

Page 239: ...Guide 2 Obtain detailed information concerning the problem from the user 3 Go through the checking in the conditions similar to that in which the problem occurred Copyright 1997 Okidata Division of OK...

Page 240: ...played 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 O...

Page 241: ...eder 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 E...

Page 242: ...the Second Third Paper Feeder Check the paper in the Second Third Paper Feeder Also check to see if there was a feeding of multiple sheets Carry out the recovery printing by opening the cover and then...

Page 243: ...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 t...

Page 244: ...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 upda...

Page 245: ...ual 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...

Page 246: ...ual 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...

Page 247: ...Page 151 Service Manual OKIPAGE20 Chapter D Second Third Paper Feeder No Part No Name Qty Recommended Qty Remarks 50 100 1000 1 40346701 Frame side L assy 1 1 3 6...

Page 248: ...40433001 Plate earth R 1 1 3 6 19 40347001 Cover front assy 1 1 3 6 20 40366501 Motor 1 1 3 6 21 40247001 Gear double 1 1 3 6 22 40348301 Pulley idle 1 1 3 6 23 40422101 Flang pulley 1 1 3 6 24 40444...

Page 249: ...3rd Tray 54 4LP 1313 121 Mini pitch belt 1 1 3 6 55 40371301 Roller assy hopping 1 2 6 12 56 40313201 Roller assy feed 1 2 6 12 57 40378401 Case assy cassette 1 1 3 6 58 40607101 Separator frame assy...

Page 250: ...hods for Multi Feeder option of the OKIPAGE 20 Series LED Page Printer Refer to the USER S MANUAL for operating instructions 1 1 Functions 1 2 External View and Component Names Copyright 1997 Okidata...

Page 251: ...gs Paper that can be used Paper type Paper size Quantity of paper Plain paper A6 106 x 148 mm A4 64 90 g m 2 Thick paper OHP film 64 90 g m 2 Post card label sheet Post card A4 size equivalent 64 128...

Page 252: ...ce 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 bp...

Page 253: ...hapter 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...

Page 254: ...ing edge reaches roller C 2 Next the hopping motor rotates in the direction of arrow E The planet gear F moves to the direction of arrow H and drives idle gear J The rotation of idle gear J is transmi...

Page 255: ...e 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 Exchang...

Page 256: ...assembly procedures and for reassembly procedures basically proceed with the disassembly procedures in the reverse order 3 1 Precautions Concerning Parts Replacement 3 2 Parts Layout 3 3 Parts Replace...

Page 257: ...dure and do not disassemble any more than necessary 4 Only specified service tools may be used 5 Disassembly must be carried out according to the prescribed procedures Parts may be damaged if such pro...

Page 259: ...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 upd...

Page 260: ...diagram below Multi Feeder Separator 3 3 1 AOLE PCB 3 3 2 Square shaped connector 3 3 3 Hopping motor 3 3 4 Planet gear 3 3 5 Roller B 3 3 6 Roller A 3 3 7 Mini pitch belt Feed roller 3 3 8 Copyright...

Page 261: ...per cover 2 using a flat head screwdriver and remove the upper cover 2 4 Remove two pan head screws 3 and remove the cover frame 4 5 Disengage the plate and the frame Refer to 3 3 6 6 Remove two screw...

Page 262: ...he plate 13 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...

Page 263: ...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 Copyright 1997 Okidata Division of OKI America In...

Page 264: ...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 Confirmation after assembly 1 The s...

Page 266: ...ver 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 Copyright 1997 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Busine...

Page 267: ...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 Copyright 1997 Okidata Division of OKI America Inc All rights reserved See the...

Page 268: ...Remove the AOLE PCB see 3 3 2 5 Remove the motor bracket assy see 3 3 5 6 Remove the gear 1 7 Shift the roller B 2 to the right lift it by holding on its left side and pull it out to the left side The...

Page 270: ...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 6 Move the carrier roller assembly to the right and remov...

Page 272: ...g 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 Copyright 1997 Okidata Division of OKI America Inc All rights...

Page 273: ...ions 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 Ex...

Page 274: ...Obtain detailed information concerning the problem from the user 3 Go through the checking in the conditions similar to that in which the problem occurred Copyright 1997 Okidata Division of OKI Ameri...

Page 275: ...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 Amer...

Page 276: ...gh 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 OKID...

Page 277: ...e problem occurs frequently go through the Troubleshooting Paper size error Notifies of incorrect size paper feeding from the Multi Feeder Check the paper in the Multi Feeder Also check to see if ther...

Page 279: ...Page 175 Service Manual OKIPAGE20 Chapter E Multi Feeder JAM error Paper Input Jam...

Page 281: ...hapter 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...

Page 282: ...ce 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 bp...

Page 283: ...anual 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 ht...

Page 284: ...83 5524 P001 Roller C 1 1 3 6 6 4PB4043 4614 P001 One way pulley 1 1 3 6 7 4LP 1313 338 Mini pitch belt 1 1 3 6 8 4PB4043 4743 P001 Roller B 1 1 3 6 9 4YA4046 1647 G011 AOLE PCB 1 1 3 6 10 2201000P014...

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