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OKIPAGE 18n Led Printer

1. i E Mrd 4 i Locking point LEVER Release Dup Printer and Duplex Unit will connect automatically with built in connector 2 Lock the Duplex Unit to the printer by turning the LEVER Lock Dup to the next locking position as below Connector LEVER Lock Dup 3 From front side of printer snap fit LEVER Release Dup into the boss in Hopping Frame snap Fit snap Fit LEVER Release Dup 4 After installing Duplex Unit put back the Paper Cassette into 1st Tray Copyright 1998 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 f Page 129 OKI Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 3 0 Parts Replacement This section covers the procedures for the disassembly reassembly and installations in the field This section describes the disassembly procedures and for reassembly procedures basically proceed with the disassembly procedures in the reverse order 3 1 Precautions Concerning Parts Replacement 3 2 Parts Layout 3 3 Parts Replacement Methods Copyright 1998 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 f Page 130 OKI Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 3 1 P
2. Multi Feeder Feeder Option Option 4MB 8MB 0 Eea Flash ROM SIMM Third Paper Duplex Unit Option Feeder l Option Consumables mee Paper feeding produced by third vender Singal flow Figure 1 1 Figure 1 1 Copyright 1998 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 4 OK WT Service Guide OKIPAGE 18 18n Chapter 1 Configuration 1 2 Printer Configuration The printer unit consists of the following hardware components e Electro Photographic Processor e Paper Feeder e Controller e Operator panel e Power supply unit Figure 1 2 is the configuration of the printer unit Face up slacker Assy E p a ili E T wie e osse i no uror e Jil i TIR a qi i E ij LES Zn re J Cover Side L Assy Base Unit Figure 1 2 Copyright 1998 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 i Page 5 OKI Service Guide OKIPAGE 18 18n Chapter 1 Configuration 1 3 Optional Configuration 1 Multi Feeder 2 Second Third Paper Feeder 3 DUPLEX Unit Optional 4 D RAM SIMM module 72 pin See 7 2 1 for where to install SIMM 16 MB 32MB EDO SIMM type 5 Flash ROM module 72 pin SIMM S
3. Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 191 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 3 3 2 AOLE PCB 1 Remove the upper cover see 3 1 1 1 to 3 2 Remove two screws 1 and remove the AOLE PCB 2 3 Remove the connector 3 4 Remove the connector 4 Caution Be careful to set the sensor plate properly when mounting AOLE PCB Sensor plate Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 192 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 3 3 3 Square shaped connector 1 Remove the upper cover and remove the cover frame 5 see 3 3 1 1 to 4 2 Remove the AOLE PCB see 3 3 2 3 Remove the screw 1 and remove the square shaped connector 2 4 Using the connector remover remove the nylon cord 3 from the square shaped connector 2 Confirmation after assembly 1 The square connector 2 should be horizontal to the cover frame 5 FRE RTE FEE Te FE Pe ee ee 2 GNO OUO SED UNDO LI LII m MN a GR 2 The square connector 2 should be hooked on the connector spring 4 and move smoothly
4. Copyright 1998 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 28 Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement Figure 3 3 Assy Cassette R GUIDE cn cL E B m DU a 2 M4 SES VN X B n A pe L es a J k D r c i 7 y am D if ac t P Pa N Power Supply Unit 120V 230V FILM Insulation Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 29 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 How to Change Parts This section explains how to change parts and assemblies appearing in the disassembly diagram below 3 3 1 Faceup Stacker Assy 3 3 2 Contact Assy 3 3 3 DC Fan Motor 3 3 4 OP Panel Assy 3 3 5 Board FFF 3 3 6 Stacker Assy Damper Arm Cover Rear 3 3 7 Sensor Stacker Full 3 3 8 Cable cover guide film 3 3 9 Damper 3 3 10 Feeder Unit Front 3 3 11 Roller Assy Regist 3 3 12 Motor Main 3 3 13 Guide Assy Eject 3 3 14 Heat Assy 3 3 15 Roller feed C 3 3 16 Roller Assy BK 3 3 17 Roller Assy Feed 3 3 18 LED Head 3 3 19 Paper cassette ROLLER Assy Feed ROLLER Assy Hopping 3 3 20 Frame Assy Separation 3 3 21 Trans
5. HOLOW ENIddOH LI Fo ij r SELECT SIZE3 V 5 6 IP 4 gt Go Uu SIZE 6P MANZE TP BOARD BBB m m ta ko m fo TID TU D 0 iu z Im jon Ig alg z lo gt E m lt gt 7 Z Lu 7P ji to 3rd TRAY Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 178 OKI Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 5 2 PCB Layout looooocc 1 4 Motor driver Paper end sensor Paper near end sensor Copyright 1998 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 179 Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 6 0 Parts List EP 3 7 No PatNo jNam Qty Recommended Qty Remarks 8100 1000 40346701 Frame side L assy i nn B j6 HR p ELI c 2 40488701 Guide cassette L LE 7 sees 3 515000001 Pulbock 1 lk 2 jo p2 Jf 4 40349102 Lever link caulking t M B 6 J 5 50516801 Link support 2 2 l p2 J 6 406072010 Spring Sheet_ l 0 6 2 Jf 7 50607201 Cassettestpper l l J 6 M2 J 8 5090206800
6. Thank You for purchasing this Factory Service Manual on EBAY from PCTECHI NFO Click Here for more Factory Service Manuals for other Computer and Printer Copier Manufacturers from PCTECHI NFO OKI Service Guide OKIPAGE 18 18n Chapter 0 Introduction Front Cover Oki Data Service Guide OKIPAGE 18 and 18n Adobe Acrobat printable reference copy of the OKIDATA Service Training Manual 01 26 2000 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 most displays Table of Contents Page Service Guide OKIPAGE 18 18n 0 Introduction Preface 1 1 Configuration Configuration 2 1 1 System Configuration 3 1 2 Printer Configuration 4 1 9 Optional Configuration 5 1 4 Specification 6 1 5 Safety Standards 7 elias 1 5 1 Certification Label 8 snes 1 5 2 Warning Label 9 2 Operation Description 2 0 Operation Description 10 2 1 Main Control Board BOARD FFF 11 2 2 Power Supply Unit 12 2 3 Electro photographic Process 13 2 9 1 Electro photographic process mechanism 14 2 9 2 Electro Photographic process 15 2 9 9 Process operation descriptions 16 2 9 4 Revision of LED Head lllumination 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 Size Detection 22 3 Parts Replacement Parts Replacements 23
7. STRB N SIRBT N BATA d LED Driver LED Driver In OKIPAGE 18 18n the correction control of LED head is executed directly by the CPU The procedure is as follows i LED head is set to the correction control read mode and all correction data stored in EEPROM within the correction control LSI are read by CPU and stored temporarily in the memory ii Next LED head is set to the correction control direct mode and the correction data stored temporarily in the memory is transferred directly to the LED driver i Read of correction data CLOCK LOAD DATA3 0 STRBI N 1 i STRBAN STRBI N 3 STRBAN i RD 1 dummycycle ADeycle RD cycle RD cycle RD cycle Mode setting 8 clocks B clocks B clocks 8 clocks B clocks i 4 Head data read Li Correction data read Total 19992 clocks RD Mode en ii Transfer of correction data to head driver correction data z50ns min CLOCK UUU LOAD EO Correction data 4991 DATA 3 0 STRB4 1 i i AE 7 Correction data 4992 Correction data 2 ME to DIRECT Total 2496 clocks d 3 NN 3 Mode setting i oi DIRECT Mode set DIRECT Mode en 2 One side wire bonding head Correction Control EEPROM DATA 1 LED Driver From CLOCK CPU L LED Array OO es 5 i5 us us ED Driver i LED head is set to the correction control r
8. A heater timeout error occurred A thermistor error occurred The thermistor is open A thermistor short occurred A watchdog timeout occurred To clear the error display press the reset button on the status monitor of the printer driver Simplify the print data format Replace program ROM or the main control board When replacing the main control board also adjust EEPROM data Replace the main control board When replacing the main control board also adjust EEPROM data Replace the main control board When replacing the main control board also adjust EEPROM data Check the connection of the Option RAM PC board If the option RAM PC board is faulty replace it see Section 6 5 2 Replace the thermistor of the heater Assy Replace the thermistor of the heater Assy Replace the thermistor of the heater Assy To clear the error display turn on the power supply again Replace the main control board 5 An error was detected by optional software Replace the PostScript module BOARD MSM or ROM BOARD FSL An error was detected by optional RAM Check the optional RAM for proper connection check Replace the optional RAM A fault occurred in the fan motor Connect the fan motor cable properly Replace the fan motor 0 70 Power Supply Unit AC120V 230V A fault occurred in the fuser see Section 6 5 2 Thermistor open error aai ee Toner sensor e
9. Yes ls the paper at the inlet sensor lever Yes Remove the paper Mo Does the inlet sensor lever operate smoothly Mo Replace the inlet sensor lever Yes Clean the inlet sensor 1 on the Power Supply Unit High Voltage or replace the Power Supply Unit High Voltage See Figure 2 3 Sensor Layout Diagram No Doesa jam error occur after paper feeding Yes s the paper fed on the inlet sensor lever Yes Goto Ai No Goto B Na Does the front feeder paper sensor lever operate smoothly Mo Replace the lever of the front feeder paper sensor Yes Clean the front feeder paper sensor Is the printer recovered YES END Mo Replace the front feeder paper sensor assembly i Mo Is the hopping roller rotating Yes set the paper properly Mo lsthe hopping motor rotating Yes Replace the front feeder gear or idle gear B 1 A Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 85 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 2 3 Paper feed jam Does a paper feed jam occur when the power is turned on Yes Is the paper on the paper sensor lever Yes Remove the paper Mo Does the paper sensor lever operate smoothly Mo Replace the paper sensor lever Yes Clean the paper sensor See Figure 2 3 Sensor Layout Diagram wu 44 Is the
10. es 2 eg 52 SERTE 52 estes 23 es 25 25 amp e amp es 25 25 5 a s of e2 s eo ites lies es 25 25 5 ile ec s te a a oa 33 z EE ta de ier P S LIII A LAS CAS m a a a 1 LJ Fl LJ EF EP ap LP OL SLA NIV OANiddOH peesesesdar oes rete Sea P3 deg dez 7 pre iiia B ee j TP y egy 2 dii tereo S INOHS 3dOT3AN3 HOLOW Nya 2M HIO AN3A MOT AVHLONZ Copyright 1998 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 112 OKI Service Guide OKIPAGE 18 18n Chapter 7 Wiring Diagram 7 2 2 Power Supply Board 120V 230V Copyright 1998 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 113 OK UJ Service Guide OKIPAGE 18 18n Chapter 7 Wiring Diagram 7 2 3 Power supply board High voltage Copyright 1998 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 114 Service Guide OKIPAGE 18 18n Chapter 7 Wiring Diagram 7 2 4 Flash ROM module BOARD FSL or BOARD FSL 2 O O Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDA
11. printing data synchronous clock CLOCK Then the printing data stored in shift registers are latched by the high level pulse of LOAD The latched printing data turns the LEDs on by STRB1 N through STRB4 N and actuates printing Copyright 1998 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 m i Page 18 OKI Service Guide OKIPAGE 18 18n Chapter 2 Operation Description 2 4 Paper Jam Detection The paper jam detection function supervises the paper state at power on time and during printing In the event that the following state occurs this function interrupts the printing process If any of the following errors is present recovery printing will be performed by removing the jammed paper namely by opening the upper cover removing the jammed paper and closing the upper cover Paper input jam At power on time the paper is placed at the inlet sensor After hopping operation is attempted three times the leading edge of the paper does not reach the inlet sensor Paper feed jam At power on time the paper is placed at the paper sensor The leading edge of the paper does not reach the paper sensor within a predetermined distance after the paper has reached the inlet sensor The trailing edge of the paper does not pass over the paper sensor within a predetermined distance after the leading edge of the paper has passed over
12. 3 1 Precautions for Parts Replacement 24 3 2 Parts Layout 25 eee Figure 3 1 26 mee Figure 3 2 27 doeet Figure 3 3 28 9 9 How to Change Parts 29 3 3 1 Face up Stacker Assy 30 PEPEN 3 3 2 Contact Assy 31 Snn 3 3 3 DC Fan Motor 32 3 9 4 OP Panel Assy 33 3 3 5 Board FFF 34 EMEN 3 3 6 Stacker Assy Damper Arm Cover Rear 35 ATES 3 3 7 Sensor Stacker Full 36 P 3 3 8 Cable cover guide film 37 UR 3 3 9 Damper 38 M 3 3 10 Feeder Unit Front 39 3 3 11 Roller Assy Regist 40 Tm 3 3 12 Motor Main 41 slates 3 3 13 Guide Assy Eject 42 em 3 3 14 Heat Assy 43 3 3 15 Roller feed C 44 iu 3 3 16 Roller Assy BK 45 sana 3 3 17 Roller Assy Feed 46 Table of Contents Page S 3 3 18 LED Head 47 vods 3 3 19 Paper cassette ROLLER Assy Feed ROLLER 48 Assy Hopping ME 3 3 20 Frame Assy Separation 49 dus 3 3 21 Transfer Roller TR Gear TR Bearing 50 nti 3 3 22 EP lock shaft 51 NEEE 3 3 23 LEVER Assy Out Sensor 52 T 3 3 24 Toner sensor lever 53 dus 3 3 25 Paper sensor lever 54 T 3 3 26 Inlet sensor lever 55 g 3 3 27 Power supply unit 56 ue 3 3 28 Lever Paper end amp Lever Paper near end 57 M 3 3 29 Guide Assy Cassette L 58 3 3 30 Guide Assy Cassette R 59 4 Adjustment 4 0 Adjustment 60 4 1 Maintenance Modes and Functions 61 er 4 1 1 User maintenance mode 62 ies 4 1 2 System maintenance mode 63 DH 4 1 3 Engine maintenance mode 64 nmm 4 1 4 EEPROM initialization 65 4 2 A
13. BPX for any updates to this material http bpx okidata com f Page 123 OKI Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 1 1 Functions DUPLEX UNIT is a unit which is installed on the printer unit for controlling both sided printing from the printer unit intended for automatically reversing papers of which one side have been already printed and re feeding them to the unit for printing other side The main functions are the followings e Paper that can be used Paper Type e Cut Sheet Size A4 Letter Executive Legal13 Legal14 e Special Size Paper Width 210 to 216mm Paper length 279 to 356mm Weight e 16lbs 24 Ibs 64 81 g m Copyright 1998 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 f Page 124 OKI Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 1 2 External View and Component Names Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 125 OK WT Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 2 0 Mechanism Description 2 1 General Mechanism 2 2 JAM Release Mechanism 2 3 Removing Installing Duplex Unit Copyright 1998 Okidata Division of OKI
14. Chapter E Multi Purpose Feeder Maintenance 3 0 Parts Replacement This section covers the procedures for the disassembly reassembly and installations in the field This section describes the disassembly procedures and for reassembly procedures basically proceed with the disassembly procedures in the reverse order 3 1 Precautions Concerning Parts Replacement 3 2 Parts Layout 3 3 Parts Replacement Methods Copyright 1998 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 187 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 3 1 Precautions Concerning Parts Replacement 1 Parts replacements must be carried out by first turning the printer power switch off O and removing the Multi Feeder from the printer 2 Do not disassemble the Multi Feeder if it is operating normally 3 Establish the extent of disassembly suitable for the purpose of the procedure and do not disassemble any more than necessary 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 followed 6 Small parts such as screws and collars can easily be lost therefore these parts should be temporarily fixed in the original location 7 When handling printed circuit boards do not
15. Figure 6 4 E Print voids Poor fusing images are blurred or peeled off when touched by hands White belts streaks in the vertical direction Figure 6 4 F nowy print of high density pattern Figure 6 4 H Blotchy faded print Figure 6 4 1 A Light or blurred images entirely B Dark background density C Blank paper w LLL CLA wv LULA co Le Vw n nmnnnnm D Black vertical stripes E Cyclical defect F White vertical belts or streaks H Snowy print of high density Blotchy faded print pattern Figure 6 3 Image Problems Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 97 OKI Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 1 An image is light or blurred entirely Is toner low Is the TOMER LOW message displayed Yes Supply toner No Is paper of the specified grade used Mo Use paper of the specified grade Yes ls the lens surface of the LED head dirty Yes Clean the lens No Is the LED head installed properly Check connector HEAD 14P HEAD2 ad of the Main board and PC connector on the LED head for proper connac Mo Install the LED head properly Yes ls the contact plate of the transfer roller contacted with the contact assembly of the Power Supply Unit High Voltage properly See Figure 6 6 Mo Make the contact plate of
16. No Part No j Nam jQty Recommended Qty Remarks 00 400 1 53344201 gSepretor 1 1 3 6 X 2 533438800 RolerA 1 1 3 6 3 5122060 Plaetger 1 1 3 6 4 56510701 HHoppngmotr 4 1 1 3 6 5 50409701 Rolerr C 1 1 3 6 6 51235701 One way pulley 1 1 3 6 7 51304901 A MMiipithbet 1 1 3 6 8 53343901 fJRoler B 0 1 1 3 6 4 V 9 550 701 AOLEPCB 4 1 1 3 6 J 10 56731641 Connector IMSA 9714N 14B 1 O 3 6 11 56730804 Nylonconnectorcord 1 0 3 6 X J 12 51239301 jStirerrodlergear 3 3 9 18 Copyright 1998 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
17. The printer does not work normally after being turned on Is message shown in the LCD display for less than 1 second la the AC cable connected properly No Connect the cable properly ls the message 16 columns W display only on the top row shown in the LCD display Yes Replace the Main board Are the following voltages applied to the corresponding pins of the POWER connector on the Main board For the measuring points see Figure 6 1 Pin 23 8V Pin 24 8V Pins 19 20 30V Pins 8 12 17 18 OV Pins 13 14 5V Mo Remove the AC cable Set tha POW switch to the ON position Measure the resistance between L and M pins of the AC inlet using a multimeter s there continuity between L and M pins normal resis tance 554 k 3 For measuring points see Figure 6 2 No Replace the fuse F2 or the Power Supply Unit AC120V or 230V Yes Are POWER connector of the Main board and Connection cord Wire 25 pin connected properly Are connection cord wire and CN3 connector of the Power Supply Unit AC 120V or 230 V connected properly Wo Connect the connectors properly Yes Are the following voltages applied to CN3 connector of the Power Supply Unit AC120V or 230V For measuring points see Figure 6 3 Pins 19 20 30V Pins 8 12 17 18 OV Pin 23 8V Pins 13 14 5V Pin 24 BV No Replace the Power Supply Unit A amp C120V or 230V Yes Replace the Connection cord wire 26 pin Is the printer recover
18. onus 3 3 2 Connector IMSA 9714N 14A 134 T 3 3 3 Photo Sensor 135 3 3 4 SOLENOID Assy 136 3 3 5 Motor 137 4 0 Troubleshooting 138 4 1 Precautions Prior to the Troubleshooting 139 4 2 Preparations for the Troubleshooting 140 4 3 Troubleshooting Method 141 bie 4 3 1 LCD Status Message List 142 ean 4 3 2 Troubleshooting Flow 143 5 0 Connection Diagram 144 9 1 Interconnection Diagram 145 9 2 PCB Layout 146 6 0 Parts List 147 Table 6 1 Duplex Unit 148 D Second Third Paper Feeder Maint option 1 0 Outline 149 1 1 Functions 150 Appearance and Parts Name 151 2 0 Description of operation 152 2 1 Driving Mechanism 153 2 2 Hopper Mechanism 154 3 0 Parts Replacement 155 3 1 Precautions Concerning Parts Replacement 156 9 2 Parts Layout 157 3 9 Parts Replacement Methods 158 auis 3 3 1 Roller assy hopping Roller assy feed 159 3 3 2 Cover front assy 160 3 3 3 Board BBB 161 iid 3 3 4 Lever paper end Lever paper near end 162 M 3 3 5 Motor 163 T 3 3 6 Connector IMSA 9714N 14B Connector 164 IMSA 9714N 14A E 3 3 7 Frange pulley pulley Idle Mini pitch belt Plate Earth 165 shaft Gear double Tray switch assy Susana 3 3 8 Roller feed 166 m 3 3 9 Bracket sub roller 167 3 3 10 Frame side L assy 168 unt 3 3 11 Frame side R assy 169 4 0 Troubleshooting 170 4 1 Precautions Prior to the Troubleshooting 171 4 2 Preparations for the Troubleshooting 172 4 3 Trouble
19. position 0 to 30 degree home position Rotating the Hopping Motor in direction b CCW drives the Front Hopping Shaft the attached FF Cam and the Front Hopping Roller When the FF Cam is rotated approx 60 degrees the Release Lever is pushed and the Front Feeder Plate lifts up allowing the Front Hopping Roller to pick up a sheet of paper When the FF Cam is rotated approx 180 degree the Front Feeder Plate is pushed down and locked by the Release Lever again When the FF Cam is rotated approx 275 degrees the paper is fed until the Inlet Sensor turns off 2 Aligning After turning on the Inlet Sensor the paper is fed a predetermined length and choked up to the wedge space formed by the Registration Roller and the Pressure Roller to align the skew of the paper 3 While the paper is fed from the Front Feeder Plate the one way clutch of 1st Hopping Roller is idled and does not drive the 1st Hopping Roller and the Sub Roller 4 Feeding After aligning the paper the Hopping Motor is turned off and stops hopping Then the Clutch Registration is turned on and the Registration Roller starts to feed the paper After the paper is fed the Front Hopping Roller drives the Front Hopping Shaft and the attached FF Cam with a small idle torque of the built in one way clutch advancing to the Release Lever The one way clutch is slipped and the FF Cam is stopped at the upper position home position The Front Hopping Roller idles until the paper clears th
20. 18 18n Chapter D Second Third Paper Feeder Maint option 4 3 Troubleshooting Method When a problem occurs go through the troubleshooting according to the following procedure Problem occurs Problem displayed by the LCD message Troubleshooting Garry out detailed according to the LCD troubleshooting Status Message List according to the see 4 3 1 Troubleshooting Flow see 4 3 2 Copyright 1998 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 174 OKI Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 4 3 1 LCD Status Message List The listing of the statuses and problems displayed in the form of messages on the LCD is provided in Table 4 1 Jam error Notifies of occurrence of jam Check the paper in the Second while the paper is being fed from Third Paper Feeder Carry out the Second Third Paper Feeder the recovery printing by opening the cover removing jammed paper and closing the cover and then turning the error display off When the problem occurs frequently go through the Troubleshooting Paper size error IE ODE Notifies of incorrect size paper Check the paper in the Second AY o feeding from the Second Third Third Paper Feeder Also check Paper Feeder to see if there was a feeding of multiple sheets C
21. 40597301 Frame Hopping 1 1 1 0 1 0 25 40322101 Plate Hopping caulking 1 7 3d 26 403174001 Shaft Hopping 1 1 1 1 27 40442501 Roller Guide J 2 28 40371301 JRollr Assy Hoppng 10 1 29 40317601 Gear Z38 1 1 0 1 0 30 50608101 JjKnockPin 1 0 0 1 0 31 51608901 ADF Bearing 1 2 40 32 40325401 Gear Z58 0 0 0 1 0 0 33 40325301 Gear Z42 ST 1 34 40317901 Lever Paperend T 1 f 35 40318001 Lever Papernearend J 1 36 50410001 FXO50 Photo Sensor Lever Sub roller caulking Roller Assy Feed Spring Release TR 23 11 14 R Core Plate Base Film Insulation 53 40160301 Powersupply Unit High voltage 1 54 403073001 Brack AC 1 SS h l Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 120 Service Guide OKIPAGE 18 18n Chapter A Centronics Parallel Interface Parallel Interface 1 Connector e Printer side 36 receptacle Type 57RE 40360 830B D29 made by DDK or equivalent e Cable side 36 pin plug Type 57 30360 made by DDK or equivalent 2 Cable e Cable length 6 feet 1 8 m max a shield
22. America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 126 OK WT Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 2 1 General Mechanism When the Duplex Unit receives an instruction for both sided printing from the unit the separator will be opened by the action of a solenoid within Duplex and the route will be shifted to the one into the Duplex after one sided printing of papers which are fed from the tray are completed At this time as the roller 1 rotates in the direction of arrow A a sheet is retracted in the rear of the cassette And then a given time later after the edge of the sheet passes through the IN SNS DUP the roller will reverse and the roller 1 rotates in the direction of arrow B and sending out the paper into the Duplex After that it passes though the roller 2 and 3 and is fed again into the unit given a another sided printing and ejected Separator IN SNS DUP Roller 3 Front Roller 2 Rear Roller 1 Sensor Sensor In retracting paper In sending out paper Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 127 Ook Ty Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 2 2 JAM Release Mecha
23. CVOPN signal is sent to the control board to notify it of the off state of the microswitch and the Main board performs the cover open processing Copyright 1998 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 f Page 20 OKI Service Guide OKIPAGE 18 18n Chapter 2 Operation Description 2 6 Toner Low Detection e Composition The device consists of the stirring gear which rotates at a constant rate the stirring bar and the magnet on the stirring bar The stirring bar rotates through the link on the protrusion in the stirring gear Protrusion Stirring Bar stirring Gear e 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 Stirring Gear Section e The stirring bar rotates due to the interlocking with the stirring gear y Stirring Bar e Even when the magnet on the stirring bar reaches the maximum height since the other side is being dipped in the toner the stirring bar is pushed by the stirring gear Sensor Lever Toner Sensor Operating during toner low state e When the stirring bar reaches the maximum height since there is no resistance provided by the toner on the other side it falls to the minimum height due to its own weight Bec
24. Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 193 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 3 3 4 Hopping Motor 1 Remove the upper cover see 3 3 1 1 to 3 2 Remove the AOLE PCB see 3 3 2 3 Remove two screws 1 then remove the hopping motor 2 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 194 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 3 3 5 Planet gear 1 Remove the upper cover see 3 3 1 1 to 3 2 Remove the AOLE PCB see 3 3 2 3 Remove two screws 1 then remove the motor bracket assy 2 and the planet gear 3 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 195 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 3 3 6 Roller B 1 Remove the upper cover see 3 3 1 1 to 3 2 Disengage the plate and frame on both sides 3 Remove the separator assy see 3 3 1 1 to 3 4 Remove the AOLE PCB see 3 3 2 5 Remove the motor bracke
25. E Multi Purpose Feeder Maintenance 3 3 8 Mini pitch belt amp Feed roller 1 Remove the roller A see 3 3 7 2 Remove the bearing 1 and remove the feed roller assy 2 3 Remove two bearings 3 and remove the plate 4 4 Remove the mini pitch belt 5 and the feed roller 6 Copyright 1998 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 198 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 4 0 Troubleshooting Precautions Prior to the Troubleshooting Preparations for the Troubleshooting Troubleshooting Method Copyright 1998 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 199 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 4 1 Precautions Prior to the Troubleshooting 1 Go through the basic checking items provided in the Operator Guide 2 Obtain detailed information concerning the problem from the user 3 Go through the checking in the conditions similar to that in which the problem occurred Copyright 1998 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
26. Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 3 9 Bracket sub roller 1 Remove the Roller assy hopping and Roller assy feed See section 3 3 1 2 Remove the Roller feed See section 3 3 8 3 Unscrew a screw 1 to remove the Bracket joint 2 Spring joint 3 and Gear joint 4 4 Take away the E ring 5 to remove the Gear hopping 6 5 Disengage latchs to remove the Gear hopping 2nd 7 At this time the Bracket planet 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 shaft 15 and remove the Shaft hopping 16 Guide roller 17 Lever release assy 18 and Bracket sub roller 19 8 Take away the Gear planet z28 20 to remove the Planet plate 21 9 Take away the Bracket spring sub 22 to remove the Spring sub 23 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 168 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 3 10 Frame side L assy 1 Remove the Frame side L assy See section 3 3 5 2 Remove the Plate Earth BL 1 3 Take away the Spring 2 to remove the Cassette stopper 3 4
27. Jf 34 40247701 Gearjint M B 6 fk J 35 40247501 X Snafthoping t M B J6 Jf 36 51608901 ADFbeading 1 1 12 J 6 M2 37 40433701 Bracket subroller caulking t 1 B J6 f 38 403177001 Gearplanet z28 t M B 6 pf 39 40358101 Plateplanet 1 b0 B 6 Jf X J 40 40367101 Bracketspring sub tt 0 B J6 f 41 40607301 Springsubroller M 0 B 6 W 42 4031760 Gearz38 1 01 M B 6 pf 43 40385901 Leverreleaseassy 0 B J6 f 44 40363301 4 Springrelease 1 1 1t b0 B J6 W 45 40442500 X Guiderler 2 Jo 6 M2 Jf j 46 5160820 Beaing p ph 0 B 6 47 40363401 Space hopping shaft d B J6 W 48 40348401 Gearhopping 2nd M M B J6 Jf 49 40348501 Bracketplanetassy tt 1 B 6 Jf Lever paper end jo un B jJ6 9H Lever paper near end ONEE CHR EN IR NN 52 403871001 Board BBB 0 B J J 53 40375101 connection code wire tt 0 3 GTO Sd Tray 54 51305201 A Miniptchbell tt 1 B 6 J J 5 6 7 8 9 40387601 Plate Earth Shaft 0387501 Plate Earth BR 0387301 Plate Earth BL 0432901 Plate Earth R 40583601 Core Assy 2nd Tray 1 To Printer or 2nd Tray Copyright 1998 Okidata Division of OKI America Inc All rights reserved
28. Mo 17 parameter No Press l or key until 14 is displayed LED HEAD No 14 Press the ENTER key LED HEAD Parameter 14 is set to EEPROM No 14 is displayed on LCD Press the ON LINE key After initializing process is completed the printer enters into the operation mode and the setting operation is finished Do not turn the power off until the printer enters into the on line state Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 70 OK WT Service Guide OKIPAGE 18 18n Chapter 5 Periodical Maintenance 5 1 Periodic Maintenance Table 5 1 lists the part and unit to be replaced periodically Table 5 1 Routine Replacement Parts rere placement ee m replacement e Regist Paper dust e Regist Paper dust Heat Assy 20000 Maintenance Kit Transfer Roller 20000 Maintenance Kit Back up Roller Assy 20000 Maintenance Kit eed Roller Assy 20000 Maintenance Kit Hopping Roller Assy 20000 Maintenance Kit eparation Frame Assy 200 000 jMaintenance Kit Note Maintenance Kit shall be replenished by users calling to serviceman Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX f
29. POI EIR PIO eo Tig m 5 LL CENT L domom dm c o Boh n kb Ec m GEG SoE 54 a E Ho oO X No D E Re ox Ee HX o RR RR GN RR RM X D BUD EXOEG4 4IBFBaAS b FAM MOTOR ENVELOPE MUPIS POS bITa eo of i GLH OLA kssje Pp E Radit dinconnagoonaucoaoi LOW END m deas Zzuoonmneoonnccsoc J D a e n u e LJ n a e n a e n u e LJ m a e n a e n u e LJ m a a a a a r a 2 r L E i E a a 2 o e Ho Eoo on E Rh oo REN hom o Nu WT AMDT RA FO pur dez r olagtecgtacas SIE ff Nate short plug TA1 setting Foy o J f r f setting 1pin 2pin 40439501 F F TA1 F3 3 pin 1 pin fof BENE f i i i i 40439701 j 40439801 2 In case of MASK ROM SGTEFLILL i Beg EF ra 2 SIZE x 32552250523255225724 oo ee ee ee ee 71 oh d Fe Ooi oOe te owe Kee b h Te C FRONT A jo caca cacag l Gade cade cage baee ea qpi 9 saccoasocaaccaao Fi ib d SOO RETO RPO REO ea QOPI PAA ee ea SMe SIMMS i 1 PANEL ee w05E a prp Perm pra FAM MOTOR ENVELOPE Ho o o No D X Nos ox IR Heo o RR RR GN RR c oO PR DO B 5 LOW END d prn1eeraeeoBu erd3ao ordogpglRacpbdasrgss ma a e n a e e n zi e a n e n a e e n uz e a e n u e e n zi CLH CLA a ca cac ar kasap PEE EE LE TEE
30. Page Size Detection The four tab pieces are driven according to the setting position of the paper guide through the cam interlocked with the paper guide of the paper cassette When the paper cassette is inserted into the printer the state of the tab pieces is detected by the microswitch to recognize the paper size State of Microswitches T Swi 4 a a E a a a L0 1 0 110 S a M EEEGNEE se MENS Legal 14 LX Loch WM L1 1 0 f a EEG GNE RENNES L1 0 0 51 Copyright 1998 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 23 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement Parts Replacements This section explains the procedures for replacement of parts assemblies and units in the field Only the removal procedures are explained here Reverse the procedure for the installation 3 1 Precautions for Parts Replacement 3 2 Parts Layout 3 3 Replacing Parts Copyright 1998 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 24 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 1 Precautions for Parts Replacement 1 Be starting parts replacement remove the AC cable and interface cable a Remo
31. Spring 1 0 6 p2 J 9 508000102 Rubberfoot 1 1 1 4 4 82 924 J 10 51024701 GuiderailplateL M B J6 11 40349701 Rolelinh amp 2 b l M2 Jf 12 40346801 Frameside R assy M M B J6 Jf Maintenance 6 15 51024801 GuiderailplateR M 1 B 6 J 16 50928901 Detectorspring M M RB 6 wj 17 40360308 Board PXC 1 1041 M B 6 hf 18 4048300010 4 Plateeath R n M B 6 Jf 19 40347001 Coverfrotasy 1 M B J6 Jf 20 40366501 Motor M M B 16 J f 21 4024700 Geardoble O0 p M B 6 dt J J J 22 40348301 X Pulleyidle 1t M B J6 f 23 40422101 Flangpulley M B J6 Jf 24 40444301 Trayswithassy NH 2 e t2 ff LEE 25 56731641 Connector IMSA 9714N 14B 1 3 To Printer or 2nd Tray 56731640 Connector IMSA 9714N 14A 1 lo 38 l6 J To 3rd Tray 27 4024730 Rollerfeed M AM B 966 f 28 51609401 Feedingbearing tt M B 6 J 29 51607301 Bush Jf B 6 J J 30 40247101 Gearfeed 1 2 k Jo M2 Jf 31 40247201 PPuleyfed M 1 B 6 pft 32 40247801 X Bracketjoint p M B 6 f 33 404834001 Springjoit M M B 6
32. 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 the Roller link 9 7 Remove two Rubber foot 10 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 169 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 3 11 Frame side R assy 1 Remove the Frame side R assy See section 3 3 5 2 Remove the Plate Earth BR 1 3 Take away the Spring 2 to remove the Cassette stopper 3 4 Take away the Spring sheet 4 to remove the Pull block 5 At this time Lever link 6 can be removed simultaneously 5 Unscrew a screw 7 to remove the Link support 8 6 Remove the Roller link 9 7 Remove the Plate earth 10 8 Unscrew a screw 11 to remove the Detector spring 12 9 Unscrew a screw 13 to remove the Board PXC 14 10 Remove two Rubber foot 15 Copyright 1998 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 s Page 170 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 4 0 Troubleshooting 4 1 Precautions P
33. The high capacity second third paper feeder only a top paper which is set in the cassette by a signal from the printer 1 Second paper feeder as an example is shown First of all the hopping motor rotates in the direction of arrow A Roller C rotates by way of idle gear on the same shaft on which the hopping gear is placed At the same time the planetary gear D shifts in the direction of arrow E and a sub roller gear and a sub roller on the same shaft rotate Roller C and sub roller make a paper hop Also the planetary gear G shifts in the direction of arrow H and Roller K rotates and when the length of sheet is legal 13 inch or more a hopping paper will be impinged to the regist roller within the printer When the length of paper is A4 or less hopping papers will be carried until the defined amount 2 When the length of paper is A4 or less the hopping roller rotates in the direction of arrow B next At this time the planetary gear G shifts in the direction of arrow to rotate Roller K and impinge the papers which are carried to the defined 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 direction of arrow F and the sub roller gear and another sub roller on the same shaft won t rotate 3 In the third paper feeder when the length of paper is legal 13 inch or more and if the rotating direction is
34. assy cassette j Frame side H assy Board BBB Cover front assy Frame sidelL assy ic Copyright 1998 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 158 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 3 Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassembly order diagram below High Capacity Second Third Paper Feeder Roller assy hopping Roller assy feed 3 3 1 Cover front assy 3 3 2 Board BBB 3 3 3 Lever paper end Lever paper near end 3 3 4 Motor 3 3 5 Connector IMSA 9714N 14B Connector IMSA 9714N 14A 3 3 6 Frange Pulley Pulley Idle Mini Pitch belt Plate Earth shaft Gear double Tray switch assy 3 3 7 Roller feed 3 3 8 Bracket sub roller 3 3 9 Frame side L 3 3 10 Frame side R 3 3 11 Copyright 1998 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 Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 3 1 Roller assy hopping Roller assy feed 1 Remove the Case assy cassette 1 2 Disengage latchs to remove the Roller assy hopping 2 3 Disengage latchs to
35. clean the image drum surface Image Drum Transfer Roller 9 Cleaning of rollers The charge roller transfer roller and cleaning roller are cleaned in the following cases e In warming up at power on time e Inwarming up after the cover is opened and closed When the number of accumulated sheets is 10 or more and the printout operation ends e Changes in bias voltage applied to each roller move adhesive toner from the roller to the image drum and return it to the developer Copyright 1998 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 17 OK WT Service Guide OKIPAGE 18 18n Chapter 2 Operation Description 2 3 4 Revision of LED Head Illumination An LED correcting head which is capable of correcting the illumination of the LED for each dot is being used in this printer LED illumination correction function of 16 steps is carried out by using an EEPROM which is installed in the LSI that maintains the LED illumination correction values and an LED correction drivers together as a pair The LED correcting head consists of the correction control LSI LED drivers and an LED array The block diagram of the LED correcting head is shown below 1 Both sides wire bonding head Correction Control LSI EEPROM LED Driver LED Driver LED Array From LOAD T CLOCK a 1o eoj e Len Len
36. com Page 73 OK WT Service Guide OKIPAGE 18 18n Chapter 5 Periodical Maintenance 5 2 2 Cleaning the Plastic Film 1 Open the stacker assy and remove I D unit 2 After cleaning LED head wipe off the paper powder by LED LENS CLEANER and remove the paper powder Plastic Film 3 Remove paper powder out of the printer unit in such a way as not to spill it and dispose of properly Copyright 1998 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 74 OK WT Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 6 1 Troubleshooting Tips 1 Check the basic check points written in the user s manual 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 1998 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 75 OK WT Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 6 2 Check Points Before Correcting Image Problems Is the printer being run in proper ambient conditions Have the supplies toner and the routine replacement part image drum cartridge been replaced properly Is the paper normal See paper specifi
37. eNDTRA Y Note short plug TA1 setting setting epin 3pin TAI 3 pin apo 1 pin MX23C2410PC 10 m 075 or 080 Mx230C2410PC 10 O74 or 079 Copyright 1998 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 2 dH E RaGgcgOBBEERdOGSGODBBEEN b B ayune ISnoOc HH c EUH qu zu nooennceoosnnmncscoc d D Page 117 OKI Service Guide OKIPAGE 18 18n Chapter 8 Parts List Figure 8 1 Printer Unit No Part Nam Qty Remarks 1 Cover Side L Assy Cover Side R Cover Side I F 5 7 10 1 12 13 17 Earth Plate BK R 20 Connection Cord Wire Power Supply Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 118 Service Guide OKIPAGE 18 18n Chapter 8 Parts List Part No Part Name Qty Remarks 1 40596901 Frame Assy Main For Maintenance 2 50928300 Spring 1 34 3 51220401 Damper L 1 E CHE a OKEMHEREIEMFEEEMEEIEMEKEKNY as 5 140315801 Lever Separator 110 1 6 51608501 TRBearing gt Z 1 7 5092800 TR SpringR
38. key Press the Menu key Press the Menu key Prass the Menu key Prass the Menu key Press the Menu Key Press the INITIALIZING Press ihe Press ihe Press the Jor Prey i i Press the Jor Pkey S a Press the Press ihe Press the ON LIME key h 0 mm 0 25 mm 0 75 mm 1 00 mm 1 25 mm 1 50 mm 1 75 mm 2 00 mm 2 00 mm 1 75 mm 0 25 mm mm 0 25 mm 0 50 mm 0 75 mm 1 00 mm 2 00 mm 2 00 mm 1 75 mm 0 25 mm Lo P3 CENTER LEFT 2 0 2 NORMAL MIDDLE HIGH Writing into the EEPROM is performed when the Enter key is pressed 0 25 mm intervals Writing into the EEPROM is performed when the Enter key is pressed Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 63 OK WT Service Guide OKIPAGE 18 18n Chapter 4 Adjustment 4 1 2 System maintenance mode e The system maintenance mode is set when the power is turned ON while pressing the Recover key e This mode adopts the menu for function selection e The system maintenance mode is provided with the following functions 1 Page count display e The total number of pages counted at the engine is displayed on the LCD 2 Page count printing enable disable e This function selects whether to include e
39. marking number LED head type Luminous intensity marking 404382 Both sides wire bonding head 405472 one side wire bonding head e Setting of LED head drive time Drive time of the LED head is to set parameter of drive time setting values corresponding to the luminous intensity displays marked on the LED head to EEPROM a Corresponding table of luminous energy display and drive time parameter Luminous intensity display on LED head b Setting 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 35 0 36 0 37 0 38 0 40 0 41 0 43 0 44 0 46 0 47 0 49 0 50 0 52 0 53 0 57 0 58 0 60 Drive time parameter Luminous intensity display on LED head 0 61 0 64 0 65 0 69 0 70 0 73 0 74 0 79 0 80 0 84 0 85 0 90 0 91 0 96 0 97 1 03 1 04 1 10 1 11 1 18 1 19 1 26 1 27 1 35 Drive time parameter Mo w E mm Example When setting head type to TYPESWB both sided wire bonding head and head drive time to No 14 FORM FEED key ENTER key Bowei ON LCD display ENG MNT Press the Menu key HEADTYPE Default setting is AUTO AUTO Press lt or P key until TYPES3WB is displayed HEADTYPE The correspondence with madel number in the Marking TYPESWB label is as follows TYPE3 405472 Prass the TYPE3WB 404382 ENTER key HEADTYPE TYPE3WB is set to EEPROM TYPESWB is displayed on LCD Press the Menu kay LED HEAD Display privious
40. of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 32 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 3 DC Fan Motor 1 Remove the cover assy side L See 3 3 2 1 2 Remove the DC fan motor 1 by pulling out the connector of DC fan motor 1 Copyright 1998 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 33 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 4 OP Panel Assy 1 Disconnect the Interface cable 1 2 Open the stacker assy 2 unscrew 2 screws 3 and remove the cover assy side R 4 3 Remove 2 screws 5 and flexible cable 6 to remove the operator panel assy 7 p 1 r J r r T n FJ P i i r rj a i aa i b J 1 Pr a LETT or 7 r m l X j 1 i if d r ram AU j i D i ae ri X M Ltd i L J i yr ull i e FL a T yw EE d m L F ft 5 E um jJ ir Ao lo P s AN Ps r i j g r ra r r Lu Le mir AACM QUE aun 1 f Lu r v s a E J i ah i RO r hth We wee Pi r g rl e ae ih f j re F i rt i a M v r m J r 4 F A i i i j i wel ii NS rog rs H j ry L3 A i k F F i dd un Dad 1 A de y i Wa A
41. of resetting 2 Hex dump e The data received from the host is dumped in hexadecimal notation to the printer e Printing is activated automatically when the received data exceeds one page If the received data is less than one page printing 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 by selecting the Auto Eject function on the menu e To exit from this mode turn the power OFF 3 Drum counter reset e This function resets the drum life data when the user replaces the image drum unit e The operation mode starts automatically upon completion of resetting 4 Resource Save e XGSetthe storage area size of resource to be stored between PCL and Postscript 5 Receive Buffer Size e Set the receive buffer 6 Operator panel menu disable e This function is for enabling and disabling the operator panel menu functions Menu 1 Menu 2 Tray Select Copies and Paper Size 7 X ADJUST e This function is used to adjust the printing start position within the range of 2 mm in 0 25 mm steps in the X direction 8 Y ADJUST e This function is capable to adjust the printing start position within the range of 2 mm in 0 25 mm steps in the Y direction 9 Duplex adjust e The function which performs a correction in Y direction towards the sheet supplied from the tray in double
42. printer recovered Mo Replace the Power Supply Unit High Voltage LE YES END No Has the paper reached the paper sensor lever Mo Is the Drum motor rotating Ho Go to on the next page Ci Yes ls the cluch for register roller M0 44 in Figure 8 2 turned on Mo Is a cable from the clutch connected to CLR connector on the main board 7 Yes Replace the Clutch Is the printer recovered Mo Replace the Main board YES END Goto on the next page Aj Go to on the next page E From on the preceding page Ej From on the preceding page A Yes ls the image drum set properly No Setthe image drum properly Yes Incase of paper feed from the front feeder check the hopping roller of the front feeder assembly In case of paper feed from the tray check the hopping roller assembly and the tray Na Has the paper reached the outlet sensor lever Yes Does the outlet sensor lever operate smoothly Mo Replace the outlet sensor lever Yes Clean the outlet sensor on the Power Supply Unit AC120V or 230V See Figure 2 3 Sensor Layout Diagram Is the printer recovered Mo Replace the Power Supply Unit A amp C120V or 230W YES END Ma Is the drum motor rotating No Gils thera any defective gear in the motor bracket assembly Yes MHeplace the defective gear Mo Are the connections for Motor connector on the Main board between drum motor properly See Chapter 7 1 Mo Connect these connect
43. radiates the image drum surface with negative charges The surface potential of the charged 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 Image drum 5 Developing Toner is attracted to the electrostatic latent image on the image drum surface to convert it into a visible toner image Developing takes place at the contact between the image drum and the developing roller 1 As the toner supply roller rotates while rubbing on the developing roller a friction charge is generated between the developing roller and the toner allowing the toner to be attracted to the developing roller The developing roller surface is charged positive and the toner negative Doctor blade Charge roller Toner supply roller T Developing roller Image drum 2 The toner attracted to the developing roller is scraped off by the doctor 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 developing roller making the electrostatic latent image visible 6 Transfer The transfer roller is composed of conductive sponge material and is designed to make the image drum surface and the paper closely into contact Paper is placed over the image drum surface and a positive char
44. roller A The paper is fed for a predesignated distance until the leading 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 transmitted to the gears linked to it and drives pulley on the same shaft as roller A turning roller C to feed the paper into the printer until it reaches the registration roller of the printer During this process a one way bearing is engaged at pulley so that the rotation of pulley is not transmitted to roller A preventing any feeding of papers by roller A Planet gear F Hopping motor Idle gear J Paper Roller B Roler A Pulley Belt Roller C Copyright 1998 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 185 Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 2 2 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 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 186 OK WT Service Guide OKIPAGE 18 18n
45. seconds from the power on No Goto A Yes Turn the power OFF ON Is the heater of the fuser unit turned on When the heater is tumed on heat is radiated Yes Is a cable of the thermistor connected to CM8 connector on the Power Supply Unit High Voltage Mo Is a cable of the heater connected to CN2 connector on Power Supply Unit 120V or 230V To on the next page B To on the next page A From on the preceding page A From on the preceding page B Yes Replace the fuser unit Is the printer recovered Mo Replace the Main board YES END Is the heater or thermistor open Measure the resistance between the thermistor contacts and between heater contacts normal resistance 220 KO 25 C between pins 1 and 2 1 5 Q 120 V and 5 8 Q 240 V between pins 3 and 4 See Chapter 7 3 Yes Replace the fuser unit AC120V or 230V See Figure 6 3 Mo Is CN2 connector connected to the Power Supply Unit A amp C120V or 230V Mo Connect the CN2 connector to the Power Supply Unit A amp C120V or 230V properly Yes Is Pin 6 HEAT ON signal of the POWER connector of the Main board turned on In heater on state this pin is set to O V No Replace the Main board Is the AC voltage applied to the CN2 connector on the Power Supply Unit Yes Replace the Power Supply Unit High Voltage YES Goto B Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Bus
46. should refer to the USER S MANUAL for methods of handling and operating the equipment Copyright 1998 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 2 Service Guide OKIPAGE 18 18n Chapter 1 Configuration Configuration System Configuration Printer Configuration Optional Configuration Specification Safety Standards Copyright 1998 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 i Page 3 OKI Service Guide OKIPAGE 18 18n Chapter 1 Configuration 1 1 System Configuration The OKIPAGE 18 consists of control and engine blocks as the standard configuration See Figure 1 1 In addition the following options are also available AC IN Printer 120V DD ov i i i i cie PC elc Printer Main control ai Bm Mechanism l l Centronics l Parallel interface Bidirection i E l l os l s Front Feeder i i LED head Motor Main Hopping motor RS 232C serial lF LAN alc OKI HSP interface board Option Paper tray Paper size detection switch I i I I i i i LCA L q Onfi High Capacity Second Paper l l l l l l l l l l l
47. sided printing 10 Select paper source command parameter Second tray e The function which sets the parameter selecting the second tray by paper source command ESC amp N H on PCL 11 Select paper source command parameter Third tray The function which sets the parameter selecting the third tray by paper source command ESC amp N H on PCL 11 Select paper source command paramter Third tray e The function which sets the parameter selecting the third tray by paper source command ESC amp I H on PCL 12 Select paper source command parameter Front tray e The function which sets the parameter selecting the front tray by paper source command ESC amp N H on PCL 13 Page placement e The function which aligns a printing image to the right 14 SETTING e This function is used to adjust to improve print quality 2 Rough thick paper Low temperature humidity and or blotchy faded print appeared 1 Rough thick paper Low temperature humidity and or blotchy faded print appeared 0 Normal media environmental conditions 1 Rough papers high temperature humidity and or snowy print of high density pattern 2 Rough papers high temperature humidity and or snowy print of high density pattern 15 Cleaning cycle e Set the page interval to perform Cleaning Sequence When stains build up especially in using rough papers Change the cleaning cycle The shorter the cycle is set the less the s
48. the connection cord properly Yes ls the Duplex Front sensor lever operating normally Yes ls the connection cord between the Duplex Front sensor and the Board LEX connected properly Yes Does the connection cord have a break Yes Replace the Duplex Front sensor FX50 Photo Sensor YES END Mo Replace the Board LEX No Connect the connection cord properly Mo Replace the Duplex Front sensor lever LEVER Sensor F R and SPRING Sensor F R Copyright 1998 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 144 Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 5 0 Connection Diagram 5 1 Interconnection Diagram 5 2 PCB Layout Copyright 1998 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 145 Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 5 1 Interconnection Diagram uu JEU oj d t xa 1an a j Ln m 7 en HOSN3S LNOHJ dzHd vl HOLO NZHd e j dlHd zo H MLHd ue A X3l dHvOgS z HOSN3S LITNI P T DA 758 eL ce ulli OND Tb lle aN JaioNs1os EE d ABE Z a D L A8 LL Fi Copyright 1998 Okidata Division of OKI Ameri
49. the paper sensor The leading edge of paper does not reach the outlet sensor within a predetermined distance after the paper has reached the paper sensor Paper exit jam At power on time the paper is placed on the outlet sensor The paper does not pass over the outlet sensor within a predetermined after the leading edge of the paper has reached the outlet sensor The paper size check with the manual feed specified considers the reference size as free size Paper size error The size of the paper is supervised by the inlet sensors 1 It is detected that the paper does not pass over the inlet sensor 1 within predetermined range of distance The inlet sensor 2 detects that the size of the loaded paper is A4 or larger or smaller than 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 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 19 OK WT Service Guide OKIPAGE 18 18n Chapter 2 Operation Description 2 5 Cover Open When the stacker cover is opened the cover open microswitch on the Power Supply Unit High voltage is turned off to cut the supply of 30V to the high voltage power supply circuit As a result all high voltage outputs are interrupted At the same time the
50. this power supply unit supervises the paper running state during printing Figure 2 3 shows the sensor layout diagram Paper running direction 4 Holler exit ITI Outlet sensor I Roller Heat L Holler transfer Hi Paper sensor Toner sensor TT Roller registration LII inlet sensor 1 Inlet sensor z Feed roller 34 Figure 2 3 Sensor amp j Funcion jSensingstate Inlet sensor Detects the leading part of the paper and ON Paper exists gives the supervision timing for switching OFF No paper exists from hopping operation to feeding operation Supervises the paper running state and the paper size according to the paper reach time and running time Inlet sensor 2 Detects the form width ON A4 or larger OFF A4 or smaller Paper sensor Detects the leading part of the paper ON Paper exists Supervises the paper running state OFF NO paper exists Outlet sensor Supervises the paper feed and size ON Paper exists according to the time of arrival to the sensor OFF No paper exists and the time of passage of paper Toner low sensor Detects the lack of toner ON long Toner low exists OFF short No Toner low exists Copyright 1998 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 13 OK WT Service Guide OKIPAGE 18 18n Chapter 2 Operation Description 2 3 Elect
51. time excluding the time Emulation upon engine maintenance engine reset 600 x 1200dpi strobe time relative value excluding the time upon engine maintenance engine reset Print start position x Y DUP ADJUST Print Shift to Left Based Paper feed distance from the Duplex Unit Control parameter of each option tray motor Engine test Cleaning Cycle Paper Feed Command of 2nd 3rd Front Trays MEN Paper feed distance from each tray Copyright 1998 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 i Page 66 OKI Service Guide OKIPAGE 18 18n Chapter 4 Adjustment 4 2 Adjustment When Replacing a Part Adjustment necessary when replacing one of the following parts Image Drum Unit Reset the drum counter Refer to User s Manual Reset the fuser counter Refer to Chapter 4 2 1 4 2 1 Setting LED Head Drive Time 4 2 2 Destination Setting 4 2 3 Setting of ED had drive time Copyright 1998 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 67 Service Guide OKIPAGE 18 18n Chapter 4 Adjustment 4 2 1 Setting LED Head Drive Time 1 The fuser counter can be reset in the engine maintenance mode 2 Resetting method Operation LCD display With the ENTER and FOR
52. to Section 4 2 No Replace the Main board or Power Supply Unit High Voltage Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 100 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 4 Black belts or stripes in the vertical direction Replace the image drum cartridge Has the trouble been removed YES END Note After replacing the image drum cartridge set the printer in the user maintenance mode by tuming the power on while pressing the MENU key and reset the drum counter Refer to User s Manual No Heplace the LED head Has the trouble been removed YES END Note After replacing the LED head set the printer in the engine mainte nance mode by burning the power on while pressing the FORM FEED and ENTER keys Set the LED head drive time Refer to Section 4 2 a No Replace the Main board or Power Supply Unit High Voltage Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 101 OK WT Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 5 Cyclic error po ycte Remedy mage Drum Developing roller 2 05 52 1 mm Toner supply roller 3 24 82 24 mm
53. 10 01 The image drum is not Install the image installed or the toner drum or replace the sensor is faulty toner sensor Normal status Change Drum 10 02 Image drum is nearing Replace the image end of life drum Note Be sure to reset the drum counter after replacing the image drum Normal status Manual Paper In 12 20 The paper is in the Normal operation manual feed mode Normal status Printing In Progress 14 20 Printing in progress Normal operation Normal status Ejection in 14 30 Ejection in progress Normal operation Progress Normal status Manual Request Request the paper to be Executive set in the manual feed Letter mode The paper sizes are as follows Executive Letter Legal 14 Legal 13 A4 A5 A6 B5 Monarch DL C5 COM 10 COM 9 Paper size error Paper of improper size was fed 2 52 64 mm L 15 77 400 56 mm Paper jam Paper Input Jam A paper jam occurred when sheets of paper were being supplied Paper jam Paper Feed Jam A paper jam occurred during paper feeding Paper Jam Paper Exit Jam A paper jam occurred during paper ejection Cover Open The upper cover is open Buffer overflow Page Buffer The page buffer Overflow overflowed because there are a large number of print data Set the requested paper in the manual feed mode Check the paper Also check whether more than one sheet of paper were fed simultaneously To clear the error display open the cover then close it
54. 2 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 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 52 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 23 LEVER Assy Out Sensor 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the frame main See 3 3 12 7 3 Press the clamp part of LEVER Assy Out Sensor 1 Remove the LEVER Assy Out Sensor 1 by pushing it upward from the lower side Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 53 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 24 Toner sensor lever 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the frame main See 3 3 12 7 3 Squeeze the clamp part of toner sensor lever 1 and remove the toner sensor lever 1 by pushing it upward from the lower side Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this ma
55. 37 34 7 mm 17 29 8 mm 28 58 mm 46 88 mm Pressure rollerB 3 46 88 mm Notes mm 1 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 2 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 Copyright 1998 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 102 OKI Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 6 Print voids Is the contact plate of the transfer roller contacted with the Power Supply Unit High Voltage properly See Figure 6 5 No Adjust the contact plate contact to contact the Power Supply Unit High Volt age properly and the shaft of the transfer roller Yes Replace the transfer roller See 3 3 36 Has the trouble been removed YES END No Are the contacts of the toner supply roller developing roller image drum and charging roller contacted with the contact assy properly See Figure 6 5 A B C DI E Wo Adjust the contacts to contact the contact assy properly Yes Replace the image drum cartridge Has the troubl
56. 4438000 LEVER LocbkAsy 2 2 J N2 f p 10 31405415001 A SPRING Lock ram t 1 B 6 g J 11 340541502 SPRING Lock ram t 1 3 6 g J 12 140338701 LEVER Sensor D IN 1 nd B je J 13 1403936001 A SPRING Sensocr DIN t N0 33 6 f 14 504100001 jFX50PhotoiSenso 2 2 J N2 Me Mosgo ERES BEREX oaar R l8 l8 Hg 16 56731640 Connector IMSA 9714N 14A 1 ome m Pe e Sensor 18 310461601 FILM Pinch R a 2 J N2 f pV 19 314029720 FRAME Main DUP N0 43 6 j 20 140597500 GEAR Assy t 3 6 V 21 40921801 Moor t B 6 JV 22 14038180 ROLLER Feed F t 3 6 J 23 1403819001 ROLLER Feed R t 3 6e V 24 51609401 jBeaing Feed Nn M B 6 J 25 51607301 Buh RB B B 8e 26 40339901 GEAR Z4080 dt B LEN 27 1403400001 j PULEY MXL2 p 2 6 N2 z p 28 1404481001 3 Min tPitthBelt 1 M B 6 z 29 14038200 ROLLER Feed RV NN N0 SH 30 51608101 jBeaingl Y NM RB 6 31 516005600 jFXS0Beaing dt RB 6 32 140339800 GEAR Z488 tt NM B 6 J 33 140338901 LEVER Senscr F II _ 2 2 J 2 J EN COUNENECILO LO I UU MEER NE GNE EN GN GENE LEN SEN iN NUN a Sensor 36 140483401 S
57. 4PP4076 5395P 1 Holder TR Eject For removing P N 40596701 ROLLER Transfer Copyright 1998 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 25 Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 2 Parts Layout This section explains the layout of main parts Figure 3 1 Figure 3 2 Figure 3 3 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 26 c oo oo ce LLI O lt lt O o O o e o 9 Chapter 3 Parts Replacement Figure 3 1 NAM LG ae Main Control Board ain Board FFF Bq SS 4 m i miam mm a 1 l X I te i EN i E Ww k h NN At g F Cover Sida F Plate Shield ROLLER Transfer Cover Rear Face up slacker Assy Cover Side Al Cover Eide L Assy Base Unit CASE Assy Cassatta Copyright 1998 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 27 OKI Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement Figure 3 2 Feed Unit FRONT N amp i Nn o ep ROLLER Li
58. AME Hopping 28 11 Remove the Connection Cord Wire 25 and TR 23 11 14 R CORE 26 together 12 Remove two Photo Sensor 27 Copyright 1998 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 i Page 58 OKI Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 29 Guide Assy Cassette L 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove Frame Main See 3 3 12 7 3 Remove PLATE Base and FRAME Assy Hopping See 3 3 28 5 4 Unscrew two screw 1 and then remove 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 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 Remove Earth Plate L 11 and Plate Earth link 12 Copyright 1998 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 i Page 59 OKI Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 30 Guide Assy Cassette R 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove Frame Main See 3 3 12 7 3 Rem
59. America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 107 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures Contents Figure 6 5 Copyright 1998 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 108 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures Contents Figure 6 6 Copyright 1998 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 109 Service Guide OKIPAGE 18 18n Chapter 7 Wiring Diagram 7 1 Interconnect Signal Diagram Aes Meh OV 359v 110A H5IH ns Mod OXd QHvOH g1 pug ol iur xajdnr o PUNI mmmmrb dex HOSN38 ONS HYHNH Hadra JL 830334 HOSN3S ONS H3d d d HOSN3S beg Td H343n18 gm is ceded NM NIHaPKI I m 2 o fume O j LI E SNIddOH HO3 HITI2 m X gda TOY NOVELS E NN Uu 1j HO HOLS i HOLON EE AMI HOSNIS N ind Had d JNO dkl LOv3H del cOWSH O2d Qdvogs j33 Hvog Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this
60. Check the paper To release the error display open the cover then close it Open the cover then remove the jammed paper To clear the error display close the cover Open the cover then remove the jammed paper To clear the error display close the cover If this error occurs frequently see Section 6 5 2 To clear the error display close the cover If this error occurs frequently replaced the power supply board To release the error display press the reset button on the status monitor of the printer driver Install option RAM or reduce the number of print data Buffer overflow Device configuration error Device configuration error Device configuration error Device configuration error Device configuration error Device configuration error Device configuration error Device configuration error Device configuration error Category LCD status message Trouble or status Print Over Run Program ROM Check Error Hesident RAM Check Error EEPROM Check Error Option RAM Check Error Fuser Error Thermistor Error Thermistor Open Check Error Thermistor Short Check Error Watch Dog Timeout Error 40 10 60 00 A print overrun occurred because print data is complicated An error occurred during program ROM check An error occurred during resident RAM check An error occurred during EEPROM check An error occurred during option RAM check
61. EE BEEN Mode setting Tae ne ze dee cmd e dae Re a ce QT Ditail Figure A D Tp gt 2us STRBT H TLL o oe ee STRBS3 H AM STRBEA H es N than Tp The LED driver corrects the LED illumination by controlling the LED current The LED illumination can be set in 16 steps with 7 steps in the direction of illumination increase in relation to the standard value and 8 steps in the direction of decrease For this reason the LED correction data is a 4 bit data for each dot The relationship between the LED correction data and LED current correction steps with the LED driver used in an LED head is shown below LED Correction Data correction ata Data Correction Correction Ste Mode _msbb3 b2 b ibeo o BERE NER ERE RESTE illumination Correction by decreasing illumination The printing operation timing chart is shown below Normal Mode Printing Timing Chart cock JU UU UU UU UU UL ddl UU UU UU UU UU UL LOAD DATA3 0 STRBT N STRB2 N STRB3 N STRBA N First line printing data sent Second line printing data sent First line printing The printing operation is carried out in normal mode Under ordinary circumstances such as when the power is turned on or when LOAD signal level is low the normal mode is enabled The printing operation is carried out in the following sequence First the printing data DATA3 through DATAO are stored sequentially shifted in the shift registers of the LED drivers by the
62. EED key and ENTER key Function There are 19 functions as follows Head type setting Head drive time setting Head drive time setting at Auto head type Head strobe time at 600 x 1200 dpi Printing start position setting 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 download table Setting of third tray paper feed length Selection of third tray feed download table Setting of Multi purpose feeder paper feed length Selection of Multi purpose feeder download table Setting of duplex feed length Fuser count indication Fuser count reset Engine reset Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 62 OK WT Service Guide OKIPAGE 18 18n Chapter 4 Adjustment 4 1 1 User maintenance mode e To enter the user maintenance mode turn the power supply ON while pressing the Menu key e This mode uses the menu for function selection e The user maintenance mode provides the following functions 1 Menu reset e All settings for Menu level 1 are reset to the factory default values The menus for all executable emulations including options are reset to the factory default values e The operation mode starts automatically upon completion
63. ENU key Reset the drum counter Refer to User s Manual Ma Replace the Main board or Power Supply Unit High Voltage Copyright 1998 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 105 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 9 Snowy print of high density pattern Is toner low Yes Supply toner No Is paper of the specified grade used Mo Use paper of the specified grade Yes Is the lens of the LED head dirty Yes Clear the lens No Is the LED head installed properly Wo Install the LED head properly Yes Increase the printer setting number 0 1 Refer to Users manual Copyright 1998 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 106 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 10 Blotchy faded print Is toner low Yes Supply toner No ls paper of the specified grade used Mo Use paper of the specified grade Yes Clear the lans Mo Is the LED head installed properly We Install the LED head properly Yes I sthe lens of the LED head dirty Yes Decrease the printer setting number 0 1 Refer to Users manual Copyright 1998 Okidata Division of OKI
64. EPROM is performed when the Enter key is pressed 0 5 mm intervals When HEADTYPE AUTO is selected AUTO 16 AUTO 15 AUTO AUTO 15 Press the 1 lor Pkey 0mm Displayed with 1 mm intervals 41mm Writing into the EEPROM ts performed when the Enter key is pressed Press the 7 mm Menu key 8mm 1 mm Press the lor bkey Sal Writing into the EEPROM is performed FRNT POS Same as 1 g pe 0 mm n when the Enter key is pressed Menu Key press the lor key Same as 1 Writing into the EEPROM is performed _ n when the Enter key is pressed Press the lor bkey Writing into the EEPROM is performed B Bn when the Enter key is pressed Press the Menu key Press the q or key Gama as 1 Writing into the EEPROM is performed maset non the Enter key is pressed Press the n Press the lor key T Writing into the EEPROM is performed EF TBL No 1 g j No 2 whan the Enter key is pressed Press the No 3 Menu Key Brags the lor Dey Cama ce Bus Same as 1 Press the i Menu key FUSA CNT nnnnnn Press the Menu key Press the Upon completion Enter key e of processing e m FUSR CNT in ON LINE Press the Menu key Press the Upon completion ENGINE RESET Press the Menu key Enter key ENGINE of processing ON LINE RESETNG j Press the ON LIME key INITIA
65. Exchange BPX for any updates to this material http bpx okidata com Page 182 Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 1 2 External View and Component Names Link Hopper cover Paper stay Roller A ge Paper guide R Upper cover Roller B Paper supporter Paper guide L square shaped connector Cover frame Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 183 Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 2 0 Mechanism Description 2 1 General Mechanism 2 2 Hopper Mechanism Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 184 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 2 1 General Mechanism The sheet or envelope at the very bottom of the stack is fed into the printer one at a time when the Multi Feeder receives the signal from the printer 1 First the hopping motor rotates in the direction of arrow D The planet gear F moves to the direction of arrow G and drives rollers A and B The roller C is linked to pulley which is on the same shaft as roller A and it also turns at the same time as
66. Fig 2 3 Sensor Layout Diagram NO Replace the hopping roller shaft assy or paper cassette NO X I sthe hopping roller shaft rotating YES Sat the paper properly NO Is the stepping motor turning YES Replace the one way clutch gear on the hopping roller shaft assembly NO Is the connector cable being connected properly NO Connect the connector cable properly YES Check the coil resistance approx 6 712 of the stepping motor Is it normal Does paper jam at the inlet when the power is turned on YES Is the paper located above the inlet sensor lever YES Remove the paper NO lIsthe inlet sensor lever operating normally NO X Replace the stepping motor YES Replace the Board BBB Copyright 1998 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 176 Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 5 0 Connection Diagram 5 1 Interconnection Diagram 5 2 PCB Layout Copyright 1998 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 177 Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 5 1 Interconnection Diagram to PRINTER UNIT 2nd TRAY 2nd tray 3rd BOARD PXC setting switch
67. GE 18 18n Chapter E Multi Purpose Feeder Maintenance 4 3 2 Troubleshooting Flow e JAM error Paper Input Jam Does paper jam at the inlet when the power is turned on YES Is the paper located above the inlet sensor lever YES Remove the paper NO Is the inlet sensor lever operating normally NO Heplace the inlet sensor lever YES Clean the inlet sensor 1 on the power supply unit High Voltage or replace the power supply unit High Voltage See Fig 2 3 Sensor Layout Diagram When the paper is fed in does the paper input jam occur YES Isthe paper being fed to above the inlet sensor lever T YES Is the inlet sensor lever operating normally NO Replace the inlet sensor lever Y YES Clean the inlet sensor 1 on the power supply unit High Voltage or replace the power supply unit High Voltage See Fig 2 3 Sensor Layout Diagram NO Replace the feed roller roller A or roller B NO Are the feed roller roller A and roller B rotating YES Setthe paper properly NO Isthe belt torn YES Replace belt NO Is the pulse motor turning YES Replace planet gear NO Is the connector cable being connected properly NO Connect the connector cable properly YES Check the coil resistance approx 320 of the stepping motor Is it normal NO Replace the stepping motor YES Replace the AOLE PCB Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the O
68. I America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 119 OKI Service Guide OKIPAGE 18 18n Chapter 8 Parts List Figure 8 3 Base Unit No Part Nam Qty Remarks Guide assy Cassette L CE A l 3 51500901 Pull Block 2 9 4 40349102 Lever Link Caulking 1 5 5 40349701 Roller Link 2 40 6 50516801 Rink Support 2 9 7 1409281001 Spring Sheet 2 8 50607201 Cassette Stopper 9 50928801 Pressure Coil Spring 2 34 40 40445601 jEathPlateL ST 1 9 11 40377701 JGuieAssy Cassette R 1 7 o 0 12 405972001 Guide Cassette R Lever Link Caulking popu 14 40368300 jBoadPXC2 1 49 45 56731640 Connector T 1 0 46 56730803 Nylon Connector Cord V 1 f 17 50928901 DetecorSpring T 1 f 18 40389801 Plate Earh Boto 2 J9 00 19 40518501 Plate Earth Link T 1 d 4 20 56731641 Connector IMSA 9714N 14B 1 21 40375001 Connection Code Wire J 1 7 22 40989101 JPlte Botom T 1 4 d 23 40377801 jFrameAssy Hopping T 1 24
69. I America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 8 Service Guide OKIPAGE 18 18n Chapter 1 Configuration 1 5 1 Certification Label The safety certification label is affixed to th eprinter in the position below ex ODA 120V an Tiin dsi a en pika n i Pan E a AEG n LL EI minl aD Wiri Pa NI miyan in amino Us Parr sai om cmn sl r um Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 9 Service Guide OKIPAGE 18 18n Chapter 1 Configuration 1 5 2 Warning Label The warning label is affixed to the portion which may cause an injury to human body Follow the instructions on warning labels during maintenance BUNC Rene r LN i E Wi er 7 HE 4 Do not Inuch the inner rollar Bartha Sip night die insure Waral FQ J ATTENTION CHAUD ATENCION ALTA TEMPERATURA STI Me pas fnucharja rudaauninteme No toque el rodilla interior CN ALTA TEMPERATURA are Non il rullo mame NM cnRDa 5 UE HRDUTCEZU Copyright 1998 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 i Page 10 OKI Service Guide OKIPAGE 18 18n Chapter 2 Operation Description 2 0 Operat
70. KIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 204 Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 5 0 Connection Diagram 5 1 Interconnection Diagram 5 2 PCB Layout Copyright 1998 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 205 Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 5 1 Interconnection Diagram Pulse motor AOLE PCB To the Printer Copyright 1998 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 206 Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 5 2 PCB Layout Pulse motor A 2 M T3 F 1 M T4 F A M TI F 3 M T2 AOLE PCB P Co OS Pr eh exl z Z ug d Al wml a E HIE a Pe ed jlo OE OL S oo ue QO ol o o O To the Printer AOLE PCB Copyright 1998 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 207 Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 6 0 Parts List Table 6 1 Multi Feeder
71. LIZING ON LINE XXX Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 65 Service Guide OKIPAGE 18 18n Chapter 4 Adjustment 4 1 4 EEPROM initialization The corresponding area of the EEPROM is initialized for each event as shown Table 4 1 and Table 4 2 M Table 4 1 EEPROM Initial Setting Range Users Maintenance Range noe1 Systems Maintenance Range notet Maintenance Range notet Menu Level 1 Menu level 2 FAN Revision Range Destination Information Drum Counter Total Print Users Maintenance C Menu Reset A Systeems Maintenance C O EEPROM Reset i l BEN do l ol el jme S A 4 Engine Maintenance Engine Reset Firm Revision Check i 5 Engine ID Check Error at Power On Setting for Shipping E Destination a Users Information Note 1 The items for each maintenance menu of the events are to be listed Table 4 2 Items Related to Each Maintenance Menu of EEPROM Reset Users Maintenance Menu Range Hesource Save Receive Buffer Enable Disable of Operator Panel Manu Function Systems Maintenance Menu Range Engine Maintenance Menu Range Enable Disable of Total Number of Menu Correction head type excluding the time Prnt upon engine maintenance engine reset Enable Disable of Switching SIDM LED head drive
72. M ENG MNT FEED keys pressed turn the printer power on Press the MENU key until FUSER FUSER COUNT COUNT RESET is displayed RESET Press the ENTER key to reset the fuser count After the initializing process is completed the printer enters into the operation mode Copyright 1998 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 68 OK WT Service Guide OKIPAGE 18 18n Chapter 4 Adjustment 4 2 2 Destination setting The desired destination can be set by turning the power on while depressing two keys corresponding to the destination according to the following table Keys to be depressed MENU This function shall not be open for users Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 69 OK WT Service Guide OKIPAGE 18 18n Chapter 4 Adjustment 4 2 3 Setting of LED head drive time As the OKIPAGE18 18n automatically judges head type and head drive time there is no need for changing any setting in replacing LED head But individual setting can be changed by ENGINE Maintenance menu as before The procedure in such case shown below Luminous intensity marking label MEE 404382 G ooo0opsaso203078 LJ Last 3 digits indicate the LED head
73. OG ROB d ROB d ZHLDTHAY LLL POWER CONNECTOR Main control board BOARD FFF OWER CONNECTO Figure 6 1 Connector and Pin Location 04 F2 L4 Figure 6 2 Measurement by a Multimeter C2 C3 de d Figure 6 3 MES Connector and Pin Location Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 82 Ook Ty Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 2 Paper jams 2 1 Paper input jam 1st tray 2 2 Paper input jam front feeder 2 3 Paper feed jam 2 4 Paper exit jam Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 83 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 2 1 Paper input jam 1st tray 21 Paper input jam 1st tray Does a jam error occur when the power is turned on Yes Is the paper at the inlet sensor lever Yes Remove the paper i No Does the inlet sensor lever operate smoothly No Replace the inlet sensor lever Yes Clean the inlet sensor 1 on the Power Supply Unit High Voltage or replace the Power Supply Unit High Voltage See Figure 2 3 Sensor Layout Diagram Mo Does jam eror occur after paper feeding Yes Is the paper f
74. OLENOID Assy N0 3 6 JV 37 140395500 SPRING SL t M RB 6e V 38 14038260 PLATE Earth F R 1t 0 SH 39 40322901 PLATE Earth F R 2 NN 1 SH 40 14038280 PLATE Eath BIP J t 3 6 J O 41 50608201 Knock Pin 2 2 J N2 f 4 42 507003001 ERing Y t M 3 je 43 140339101 LEVER Lock DUP 2 2 J t j Oolor Black 44 140338601 LEVER Release DUP 2 2 J 2 J 45 1403937001 SPRINhA Supprt 2 2 J t2 g 46 140495800 Boad LEX t j 2 5 t0 Jj W OROM 47 140521501 Program ROM IC t j2 5 ho f 48 1403182001 COVER Bottom DUP t N0 333 6 f pP 49 40382701 PLATE Earth MTR jo n B je pg Copyright 1998 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 149 Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 1 0 Outline 1 1 Functions 1 2 Appearance and Parts Name Copyright 1998 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 150 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 1 1 Functions This high capacity second third
75. Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 47 Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 18 LED Head 1 Remove the stacker assy 1 See 3 3 6 2 Unplug the PC connector 2 and 2 LED cables 3 from the LED head 4 3 Open the hooks of the cover stacker 1 in the direction of the arrow and remove the LED head 4 4 Pull out the head spring 5 from the post Note Don t remove two LED cable 3 from the PC connector 2 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 48 Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 19 Paper cassette ROLLER Assy Feed ROLLER Assy Hopping 1 Pull out the case assy cassette 1 from the printer 2 Remove the ROLLER Assy Feed 2 and remove the ROLLER Assy Hopping 3 Copyright 1998 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 49 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 20 Frame Assy Separation 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Pull out the
76. Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 80 OK WT Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 6 5 2 LCD message troubleshooting If troubles are not correctable from the LCD message trouble list follow the troubleshooting flowcharts given here to deal with them Paper input jam 1st tray Paper input jam Front feeder Paper feed jam Paper exit jam Fusing unit error ERROR71 ERROR72 ERROR73 SSIO Synchronous Serial I O error between the Main board and the Power Supply Unit High Voltage ERROR74 I F time out between the printer and the operator panel ERROR80 7 5 I F time out no response between the printer and an optional tray 2nd tray 3rd tray multi feeder ERROR81 10 6 Data can not be received through the OKI HSP interface I F time out between the printer and the Duplex unit 6 Printing Sequence error in the Duplex ERROR83 ERROR84 s Note When replacing the Main board install the EEPROM from the old Main board onto the new Main board Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 81 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 1
77. Option The single effective interface or the automatic interface select mode can be selected using the menu If the busy state of the printer continues for a long time period the buffer near full control releases the busy status at constant intervals even if the host side is busy so not to cause the interface time out at the host side a Centronics bidirectional parallel interface This is an interface conforming to IEEE 1284 and provides either of unidirectional and bidirectional communications according to each of the following communication modes e Compatibility mode Unidirectional communications from the host to the printer e Nibble mode This mode transmits 4 bit wide data from the printer to the host In this mode each 1 byte data is transferred in the form of two nibbles using ERROR BUSY FAULT and SELECT signal leads This mode can provide the bidirectional operation in combination with the compatibility mode e ECP mode This mode provides the asynchronous bidirectional interface and transmits and receives 1 byte data using eight data signal leads under the semi duplex control by the host When the power is turned on the compatibility mode is automatically selected The change to another mode from the compatibility mode is made through negotiation When the BI DIRECTION is set to ENABLE in the menu this change can be performed For the electrical physical characteristics of this interface see APPENDIX B b RS232C
78. PER PITE Sior DUPLEX FEED JAM REMOVE THE PAPER Jam Error DUPLEX FEED JAM REMOVE THE PAPER Jam Error DUPLEX FEED JAM3 REMOVE THE PAPER Jam Error DUPLEX OPEN JAM REMOVE THE PAPER Interface Timeout Informs that a jam occurs in retracting papers into the reverse roller within the duplex Unit Informs that a jam occurs in retracting papers into the reverse roller within the Duplex Unit Informs that a jam occurs in reversing papers in the reverse roller within the Duplex Unit Informs that a jam occurs in impinge feeding papers within the Duplex Unit Informs that the 1st tray is pulled out in paper remaining state when feeding papers within the Duplex Informs that an I F time out occurs between the printer and Duplex Remove all the papers from the inside of printer unit and Duplex unit and close the cover Remove all the paper from the inside of printer unit and Duplex unit and close the cover Remove all the papers from the inside of printer unit and Duplex unit and close the cover Remove all the papers from the inside of printer unit and Duplex unit and close the cover Remove all papers from the inside of printer unit and Duplex unit and close the cover Verify connection of LEX PCB and square shaped connector Replace the square shaped connector if necessary Replace LEX PCB Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partn
79. PLEX PRINTING TIMING CHART Copyright 1998 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 16 Service Guide OKIPAGE 18 18n Chapter 2 Operation Description 2 3 3 Process operation descriptions 1 Hopping Hoppings from the first tray and the front feeder are effected by a single hopping motor in the mechanism shown below Hopping Motor i F 3 Dum t 4 Rngen 5 d 7 i 2 K 1 F a i ie I 1st Tray Turning the Hopping motor in direction a CW drives the 1st Hopping Roller Turning the Hopping motor in direction b CCW drives the Front Hopping Roller Gear C and Hopping roller built in one way bearing so that turning each of these gears in reverse direction will not be transmitted to the corresponding roller Gear C fa CW ks wione way clutch i ron a os a Front Hopping Roller w ona way clutch Raller Registration Planet Gear 1 A Gear B nN aart Sub Roller Paper 1st Hopping Roller car E w one way clutch inc RN a Hopping from the 1st Tray 1 Hopping Rotating the Hopping Motor in direction a CW drives the 1st Hopping Roller and the Sub Roller then pick up a sheet of paper in the 1st tray The Main Mo
80. Page 200 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 4 2 Preparations for the Troubleshooting 1 Display on the operator panel The status of the problem is displayed on the LCD Liquid Crystal Display on the operator panel Go through the appropriate troubleshooting procedures according to the messages displayed on the LCD Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 201 Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 4 3 Troubleshooting Method When a problem occurs go through the troubleshooting according to the following procedure Problem occurs Problem displayed by Troubleshooting the LCD message according to the LCD Status Message List see 4 3 1 4 3 1 LCD Status Message List 4 3 2 Troubleshooting Flow Carry out detailed troubleshooting according to the Troubleshooting Flow see 4 3 2 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 202 Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 4 3 1 LCD Status Message List The listing of the statuses and problems displayed in th
81. S de Lt xmas y ji hp Ya An d ej PA JP i i Ir TS ae n j a J i a P l Yi i i i fl E E e Pe ER t T vl P j D F i i ET s s a Ves r Fi ly A E i r E Mc t i ae T P 1 1 pe r 5 ime T 7 Af F E E Er J ae L i z ry r 3 Copyright 1998 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 34 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 5 Board FFF 1 Remove the operator panel assy and cover assy side R See 3 3 4 2 Unscrew 2 screws 1 and remove the cover assy corner R 2 3 Unscrew 16 screws 3 and remove plate shield 4 4 Unscrew 3 screws 5 and 2 screws 6 unplug all the connectors 7 and remove Board FFF 8 fart Le for any updates to this material http opx okidata com Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner BPX Exchange i Page 35 OKI Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 6 Stacker Assy Damper Arm Cover Rear 1 Remove the face up stacker assy See 3 3 1 2 Remove the cover assy side L See 3 3 2 1 3 Remove the OP panel assy See 3 3 4 4 Remove the Board FFF See 3 3 5 5 Loosen 2 screws unlock the latches from both sides and remove the rear cover 11 6 Uns
82. S6 21 Knock Pin 22 and ROLLER Feed R 23 can be removed 10 Unscrew two screws 24 to remove Motor 25 Copyright 1998 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 138 OK WT Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 4 0 Troubleshooting 4 1 Precautions Prior to the Troubleshooting 4 2 Preparations for the Troubleshooting 4 3 Troubleshooting Method Copyright 1998 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 139 OK WT Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 4 1 Precautions Prior to the Troubleshooting 1 Go through the basic checking items provided in the Operator Guide 2 Obtain detailed information concerning the problem from the user 3 Go through the checking in the conditions similar to that in which the problem occurred Copyright 1998 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 140 OK WT Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 4 2 Preparations for the Troubleshooting 1 Display on the Operator p
83. ST 1 9 8 40299701 GuideAssy Discharge 1 9 400329001 jSensr In 9 1 49 40 140033001 _ Spring In Sensor T 1 0 11 50807901 Write Sensor Lever 1 9 12 50807801 TonerSensorLever Adhesive 1 7 43 40583801 LeverAssy Outsensor J 1 14 40324001 Spring Out sensor T 1 0 45 51113301 EP Lock Shaft ST 1i o 16 50807501 EP Rock Lever L Assy 17 40597001 Code Assy Frot T 1 f 18 40301601 Roller Regist T 1 fo 19 40301701 Roller Pressure 20 40614401 Bearing Assy Registration 21 40301801 Gear Regists ST 1 o 22 40301901 Gear Pressure O 1 f 9 23 40323901 Roller Feed C ST 1 25 X 403168001 Gear Roller C T 1 9 26 403024001 Gear Idle K ST 1 27 40298201 Motor Assy Main T 1 28 40298301 Motor Main ST 1 4 29 40298801 Plate Damper 1 1 30 40332001 Gear IdleA 1 31 403209001 JjGear ldeB ST 1 32 402992001 Gear IdleC ST 1 33 X 403022001 JjGear ldeD T 1 0 0 34 402993001 Gear IdleE ST 1 35 40299401 JjGear ldeF ST 1 0 36 X 402995001 Gear Id
84. Second Third Paper Feeder Maint option 3 1 Precautions Concerning Parts Replacement 1 Parts replacements must be carried out by first turning the printer power switch off O and removing the High Capacity Second Third Paper Feeder from the printer 2 Do not disassemble the Second Third Paper Feeder if it is operating normally 3 Establish the extent of disassembly suitable for the purpose of the procedure and do not disassemble any more than necessary 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 followed 6 Small parts such as screws and collars can easily be lost therefore these parts should be temporarily fixed in the original location 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 Table 3 1 Service Tools No Qy Handy cleaner Connector remover OKI P N 4PP4076 5395P1 Copyright 1998 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 157 Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 2 Parts Layout This section describes the layout of the main components Case
85. See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 180 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 1 0 Outline This Handbook is intended for the service personnel and describes the field maintenance methods for Multi Feeder option of the OKIPAGE 18 Series LED Page Printer Refer to the USER S MANUAL for operating instructions 1 1 Functions 1 2 External View and Component Names Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 181 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 1 1 Functions This Multi Feeder is installed on the front section of the printer and it supplies paper automatically through the operation of hopping motor which is driven by signals sent from the printer The main functions are the followings e Paper that can be used Paper type Quantity of paper Plain paper A6 106 x 148 mm A4 64 90 g m Thick paper OHP film 64 90 g m Post card label sheet Post card A4 size equivalent 64 128 g m Envelope C5 DL COM 10 COM 9 Monarch 64 90 g m approximately 50 sheets of envelopes can be set at a time Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner
86. Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 11 Roller Assy Regist 1 Remove the feeder unit front See 3 3 10 2 Remove an E ring 3 gear assy clutch 4 and four screws 1 in this order and lift out the roller assy registration 2 Copyright 1998 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 i Page 41 OKI Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 12 Motor Main 1 Remove the stacker assy See 3 3 6 2 Remove the feeder unit front See 3 3 10 At this point the manual feed assy does not have to be removed 3 Remove the DC fan motor See 3 3 3 4 Remove the contact assy See 3 3 2 5 Remove the plate FG F 1 6 Remove the TR gear 2 and roller transfer 3 Use Holder TR Eject 16 for the removal 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 it out in right direction 9 Unhook the EP lock spring 7 and remove the EP lock lever 8 10 Take off the E ring 9 and remove the plate FG 1st 10 and gear assy clutch 11 11 Unlock 2 latches to remove the motor assy main 12 and idle gear 13 12 Unscrew 2 screws 14 and remove the motor main 15 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See
87. Supply Unit AC120V or 230V See Figure 2 3 Sensor Layout Diagram Is the printer recovered No Replace the Power Supply Unit AC120V or 230W YES END YES END Yes Clean the inlet sensor 1 inlet sensor 2 and outlet sensor See Figure 2 3 Sensor Layout Diagram ls the printer recovered Mo Replace the Power Supply Unit High Voltage YES END Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 88 OKI Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 4 Fuser unit error ERROR 71 ERROR 72 ERROR 73 Tum the power OFF ON Does a fuser unit error occur immediately Yes Is the thermistor open or shorted Measure the resistance between thermistor contacts About 220 kt at room temperature 25 C See Chapter 7 3 for the measuring points Yes Replace the fuser unit No Is a cable of the thermistor connected to CN8 connector on the Power Supply Unit High Voltage Is there any flaw on the cable of the thermistor Mo Adjust the thermistor contact so as to touch the contact assembly properly Yes Does appear the heat on signal at pin 6 HEAT ON signal 0 V in heater on state of the POWER connector on the Main board Mo Replace the Main board Yes Replace the Power Supply Unit High Voltage Mo Does a fuser unit error occur after more than 120
88. TA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 115 Service Guide OKIPAGE 18 18n Chapter 7 Wiring Diagram 7 3 Resistance Check Unit Circuit Diagram Motor Main Hopping motor Resistance Between pins 1 2 3 1 Ohms Between pins 3 4 3 1 Ohms to CN2 connector Thermostat Between pins 1 on the Power Supply 9 1 974 Heater 2 6 7 Ohms Unit AC120V or a L e ave 230V lt do to CNB connector CEN on the Power Supply Unit High Voltage lt Between pins 3 4 6 7 Ohms Between pins 1 2 3 1 Ohms Between pins 3 4 3 1 Ohms Red FANALM N Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 116 Service Guide OKIPAGE 18 18n Chapter 7 Wiring Diagram 7 4 Program Font ROM Location 1 In case of EP ROM or OTP ROM STKFLILL AD Ee arrana njia n 5 EAD Lit l jon nranninnninnnin qs Ra dul B AR Da 13 RS 1 e 2 da abpbpd pcrdgu acrpraogorsus bRucnabcHu cboltu bbeHuooyn jal 02223222 2 a B pjoonroonrconacoconic OHPS BPA43 T3 08 ely AT ig 3 z a a xs da boh ka oda doa oda Ea mb oda Ea d US 8 m ga dora aoa Hoa moda dB oda D ode don n Re i TE B fui 2 i eG CFOS RPP eGR eo Ee gp ee TU RUN s Ti g S J CIP CIITA eA
89. X for any updates to this material http bpx okidata com Page 154 Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 2 2 Hopper Mechanism The hopper is a motion where papers are automatically sent into the printer one by one When papers are set to the cassette the feeding motion is activated by the hopping motor to send only a top paper which is caught on the brake shoe Printer Roller feeder Hopping Roller Sub Roller Second Paper Feeder gt Hopping Roller Sub Roller Third Paper Feeder Copyright 1998 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 155 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 0 Parts Replacement In this section the removing and installing procedure of assembly and unit in field are described Although this section describes the removing procedure the installing procedure is basically to conduct the removing one in reverse 3 1 Precautions Concerning Parts Replacement 3 2 Parts Layout 3 3 Parts Replacement Methods Copyright 1998 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 156 OK WT Service Guide OKIPAGE 18 18n Chapter D
90. al http bpx okidata com Page 136 OK WT Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 3 3 4 SOLENOID Assy 1 Remove the Frame Main DUP See section 3 3 2 2 Release the lock to remove Two LEVER Sensor F R 1 and two SPRING Sensor F R 2 3 Unplug the Connection Code Wire 3 and remove Photo Sensor 4 4 Take away the SPRING SL 5 and two screws 6 to remove SOLENOID Assy 7 Copyright 1998 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 f Page 137 OKI Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 3 3 5 Motor 1 Remove the Frame Main DUP See section 3 3 2 2 Unscrew two screws 1 to remove PLATE Earth F R 2 3 Unscrew three screws 3 to remove PLATE Earth F R 2 4 4 Disengage the latch to remove the Bearing L 5 GEAR Z40S8 6 Bearing 7 and ROLLER Feed 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 Bushes 14 7 Disengage the latch to remove the Bearing Feed 15 and ROLLER Feed F 16 8 Remove the E Ring 17 and Bush 18 9 Unscrew two screws 19 to remove the GEAR Assy 20 At this time the GEAR Z40
91. anel The status of the problem is displayed on the LCD Liquid Crystal Display on the Operator panel Go through the appropriate troubleshooting procedures according to the messages displayed on the LCD Copyright 1998 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 141 Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 4 3 Troubleshooting Method When a problem occurs go through the troubleshooting according to the following procedure Problem occurs Problem displayed by Troubleshooting the LCD message according to the LCD Status Message List see 4 3 1 Carry out detailed troubleshooting according to the Troubleshooting Flow see 4 3 2 4 3 1 LCD Status Message List 4 3 2 Troubleshooting Flow Copyright 1998 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 142 Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 4 3 1 LCD Status Message List The listing of the statuses and problems displayed in the form of messages on the LCD is provided in Table 4 1 Classification LCD Status Message Recover Method Jam Error DUPLEX INPUT JAM REMOVE THE PA
92. arrow A papers will be carried to the defined amount without being impinged to the regist roller and then the rotating direction of the hopping roller will be changed to arrow B When the rotating direction of the hopping roller A arrow direction the motion is same as 1 When B arrow direction the motion will be same as 2 until Roller K begin to rotate The planetary gear M will shift in the direction of arrow L by way of the gear O which begin to rotate at the same time when the roller K does And gear N rotates resulting in rotating the gear J and roller K on the same shaft and impingeing papers to the regist roller within the printer At this time as the gear O and gear P engaged by the planetary gear G on the same shaft on which the gear J and roller K are placed includes an one way clutch gear the planetary gear G won t rotate Impinged papers are afterwards fed by the control of printer s inside Paper Gear O Engaging to gear P or planetary gear G Gear J for timing belt Roller K Roller C Hopping roller gear E Planetary gear D sub roller Sub roller gear 2nd paper feeder Gear N for timing belt Gear J Roller C Roller Hopping roller gear Z E 4 Planetary gear D Sub roller Sy We Sub roller gear ard paper feeder gear G Hopping motor Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BP
93. arry out the recovery printing by opening the cover and then turning the error display off Tray paper Error Notifies of no paper or paper Load the paper or paper cassettes state of the Second cassette in the Second Third Third Paper Feeder Paper Feeder mmmmmmmm Paper size in the tray being selected Interface timeout FAROR Notifies of occurrence of Verify connection of Board interface timeout between the BBB and square shaped printer and the Second Third connector Replace the Paper Feeder square shaped connector if necessary Replace Board BBB Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 175 Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 4 3 2 Troubleshooting Flow e JAM error Paper Input Jam NO X Replace the inlet sensor lever YES Clean the inlet sensor 1 on the power supply unit High Voltage or replace the power supply unit High Voltage See Fig 2 3 Sensor Layout Diagram NO When the paper is fed in does the paper input jam occur YES Is the paper being fed to above the inlet sensor lever YES Is the inlet sensor lever operating normally NO Replace the inlet sensor lever YES Clean the inlet sensor 1 on the power supply unit High Voltage or replace the power supply unit High Voltage See
94. ause of this the time interval during which it is in encounter with the magnet of the sensor lever becomes long By monitoring this time interval toner low can be detected Stirring Bar Sensor Lever TONER FULL state TNRSNS t1 2 72714 t1 2 721 SEC TONER LOW state TNRSNS d pP EF J tl gt 2 727 4 2 121 SEC e 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 e When there is no change with the toner sensor for 2 cycles 2 727 sec x 2 or more then the Toner Sensor Alarm is activated e The toner sensor is not monitored while the drum motor is in halt Copyright 1998 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 21 OK WT Service Guide OKIPAGE 18 18n Chapter 2 Operation Description 2 7 Stacker full Detection The sensor interlocked with the lever at the paper outlet to the stacker detects a stacker full state about 250 sheets and stops printing of the ensuing pages Copyright 1998 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 i Page 22 OKI Service Guide OKIPAGE 18 18n Chapter 2 Operation Description 2 8
95. belt amp Feed roller 3 3 8 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 190 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 3 3 1 Separator 1 Turn the printer power off and remove the Multi Feeder 2 Disengage the link and hopper cover 3 Remove two screws 1 disengage two locks of the upper cover 2 using a flat head screwdriver and remove the upper cover 2 4 Remove two pan head screws 3 and remove the cover frame 4 5 Disengage the plate and the frame Refer to 3 3 6 6 Remove two screws 5 and remove the separator assy 6 7 Lift the paper stay 7 and disengage it from the separator bracket 8 then remove the separator 9 The spring 10 comes off at the same time so be careful not to lose it bn 111111212120 Less than 0 1mm Plessure roller Plessure spring Roller Check at the time of assembly When the secondary stage of idle gear 11 is turned in the A direction after engaging the plate and the frame the inclination of the pressure roller 12 is less than 0 1 mm against the 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 installed
96. bleshooting 96 nibus 1 An image is light or blurred entirely 97 baie 2 Dark background density 98 EDDA 3 Black paper is output 99 nous 4 Black belts or stripes in the vertical direction 100 T 5 Cyclic error 101 6 Print voids 102 EN 7 Poor fusing 103 hie 8 White belts or streaks in the vertical direction 104 9 Snowy print of high density pattern 105 sundays 10 Blotchy faded print 106 E Contents Figure 6 5 107 bcn Contents Figure 6 6 108 7 Wiring Diagram 7 1 Interconnect Signal Diagram 109 7 2 PCB Layout 110 2 1 Main Control Board HBY PCB 111 2 2 Power Supply Board 120V 230V 112 2 3 Power supply board High voltage 113 2 4 Flash ROM module BOARD FSL or BOARD FSL 2 114 7 3 Resistance Check 115 7 4 Program Font ROM Location 116 8 Parts List Figure 8 1 Printer Unit 117 Figure 8 2 Frame Main Unit 118 Figure 8 3 Base Unit 119 A Centronics Parallel Interface Parallel Interface 120 B RS 232C Serial Interface RS 232C Serial Interface 121 C Duplex Unit Maintenance option 1 OUTLINE 122 1 1 Functions 123 1 2 External View and Component Names 124 2 0 Mechanism Description 125 2 1 General Mechanism 126 2 2 JAM Release Mechanism 127 2 9 Removing Installing Duplex Unit 128 3 0 Parts Replacement 129 3 1 Precautions Concerning Parts Replacement 130 9 2 Parts Layout 131 9 9 Parts Replacement Methods 132 Table of Contents Page MS 3 3 1 Board LEX 133
97. ca Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 146 Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 5 2 PCB Layout PCB LEX 1 12 o00000000000 Rear Sensor Motor driver HOLM Copyright 1998 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 147 Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 6 0 Parts List Copyright 1998 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 u Page 148 OK WT Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option Table 6 1 Duplex Unit No PartNo Nam jQty Recommended Qty Remarks 5000 1000 J O COVER Upper DUP Affix io nd S3 je z 2 14033940 ROLLER Pinch 6 l 3418 3e J 3 14038220 SHAFT Pinh 4 4 2 J234 J 4 140393200 SPRING Pinch U 4 4 H2 J24 J 5 140393200 SPRING Pinch U 2 2 J 2 J 6 1403933001 SPRING Pinch RF 2 2 J 2 f p 7 4045770 BRACKET Pinch R 2 2 J 2 f JV 8 140457800 SHAFT Pinnh R 2 2 J 2 f JV 9 140
98. case Assy Cassette 1 from the printer See 3 3 19 1 3 Release two locks and remove frame assy separation 2 At this time coil spring 3 is also removed Be careful not to lose this spring Insert so as to pass the arms of behind two latches inside the alcove of unit Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 50 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 21 Transfer Roller TR Gear TR Bearing 1 Open the stacker cover 2 Unlock the lock by lifting the TR gear 1 to remove the TR gear 1 and roller transfer 2 Use the Holder TR Eject 5 for the removal Note Don t place the removed roller transfer directly on the desk and so on When placing it lay a paper and the like under it 3 Remove right and left bearings 3 from the frame main by sliding them inside while pushing them At the same time remove the 2 transfer springs 4 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 51 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 22 EP lock shaft 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove Frame Main See 3 3 1
99. cations section p SE Dew Has the image drum cartridge been loaded properly Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 76 OKI Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 6 3 Notes When Correcting Image Problems Do not touch or bring foreign matter into contact with the surface of the image drum Do not expose the image drum to direct sunlight Keep hands off the fuser unit as it is heated during operation x Je Do not expose the image drum to light for longer than 5 minutes at room temperature Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 77 OK WT Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 6 4 Preparation Before Troubleshooting 1 Operator panel display The failure status of this printer is displayed on the liquid crystal display LCD in the operator panel Take proper corrective action as directed by messages that are displayed on the LCD Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 78 Service Guide OKIPAGE 18 18n Chapte
100. change BPX for any updates to this material Page 134 OK WT Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 3 3 2 Connector IMSA 9714N 14A 1 Remove two LEVER Release DUP 1 2 Take away two SPRING Support 2 to remove FRAME MAIN DUP 3 Remove the FRAME MAIN DUP by lifting in up from A side 3 Unscrew two screws 4 to unplug the Connector IMSA 9714N 14A 5 Copyright 1998 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 135 OK WT Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 3 3 3 Photo Sensor 1 Remove the Frame Main DUP see section 3 3 2 2 Release the lock to remove two SPRING Lock frame 1 and two LEVER Lock Assy 2 3 Pull out four SHAFT Pinch 3 and remove four ROLLER Pinch 4 and eight SPRING Pinch u 5 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 Sensor 13 Note It should not become a state such as of dotted line dO from the results of installation Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this materi
101. city 6 Fusing The toner image transferred to the paper is fused under heat and pressure Figure 2 6 shows an electro photographic process timing chart fads aupply Bias village Paper Face upi a Jh Quill sensor Fusing m EM 1 M g bon E Translar Q Fah al paper feeding d Direction of rotation ol the image dnar DMON N DRUM MOTOR Dr HMON N HOPFING MOTOR 3 P inr h ON PWM1 P CLUCH far hopping OFF PWMZ P CLUCH for REGISTRATION OnE SIN 1 N Ik 50 OFF PSIN1 N INLETSENSORT er WRSENSE N PAPER SENSOR E i PSOUT N OUTLET SENSOR OFF i STB N LED HEAD OFF ooo Do TI QN g z auntie PAPER PAPER TRAY PRINTER STACKER SIMPLEX PRINTING TIMING CHART DMON N DRUM MOTOR EFIE HMON N HOPPING MOTOR a ns 00 eN I ll FWM1 F CLUCH for hopping OFF PWM2 P CLUCH for REGISTRATION Be 2d Loo d Lo PSIN1 N INLETSENSOR 1 EE po d 0Up Lol WRSENSE N P 3 OFF SE N PAPER SENSOR Er T or 1 S d p PSOUT N OUTLET SENSOR ON STB N LED HEAD PN dl d TLbod o DUEMON N MAIN MOTOR in DUPLEX E I f g eunti CLON P CLUCH in DUPLEX UNIT m obo o d Tib fo f o SLON P SOLENOID in DUPLEX UNIT BN LEE DUPINSNS N INLET SENSOR in DA 0l po tot d DUPLEX UNI UNIT EUN REAR SENSOR inDUPLEX Xr DUPFSNS N FRONT SENSOR in N DUPLEX UNIT PAPER Fi i PRINTER DUPLEX UNIT Hi PAINTER DU
102. cond Third Paper Feeder Maint option 3 3 7 Frange pulley pulley Idle Mini pitch belt Plate Earth shaft Gear double Tray switch assy 1 Remove the Motor See section 3 3 5 2 Remove the Connector See section 3 3 6 3 Unscrew two screws 1 to remove the motor bracket 2 At this time the Mini pitch belt 3 and Gear double 4 can be removed simultaneously 4 Disengage latchs to remove the Frange pulley 5 and pulley Idle 6 5 Unscrew a screw 7 to remove the Plate Earth shaft 8 6 Unscrew a screw 9 to remove the Tray switch assy 10 Copyright 1998 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 166 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 3 8 Roller feed 1 Remove the Motor See section 3 3 5 2 Remove the Connector See section 3 3 6 3 Remove the motor bracket See section 3 3 7 4 Disengage latches to remove the Feeding bearing 1 5 Disengage latches to remove the Pulley feed 2 At this time the Gear feed 3 and Bush 4 can be removed simultaneously 6 Remove the Roller feed 5 Copyright 1998 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 167 OK WT Service
103. crew 2 screws 1 and remove frame cover 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 side of gear at the right side of the stacker cover 9 Remove a screw 6 and washer 7 and then remove the stacker assy 8 At this time the damper arm 9 can also be detached simultaneously http bpx okidata com Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material Page 36 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 7 Sensor Stacker Full 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the Stacker assy See 3 3 6 3 Remove four screws 1 Remove stacker mount 2 by releasing the tabs at position 2A 4 Remove Sensor stacker full 3 by spreading the plastic tabs on each side of sensor Assy 3 and lifting switch from cover K n i IC Copyright 1998 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 37 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 8 Cable cover guide film 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the s
104. djustment When Replacing a Part 66 UT 4 2 1 Setting LED Head Drive Time 67 e 4 2 2 Destination setting 68 THR 4 2 3 Setting of LED head drive time 69 5 Periodical Maintenance 5 1 Periodic Maintenance 70 5 2 Cleaning 71 D 2 1 Cleaning the LED Lens Array 72 D 2 2 Cleaning the Plastic Film 73 6 Troubleshooting Procedures 6 1 Troubleshooting Tips 74 6 2 Check Points Before Correcting Image Problems 75 6 3 Notes When Correcting Image Problems 76 6 4 Preparation Before Troubleshooting 71 6 5 Troubleshooting Flowchart 78 6 5 1 Status Monitor Message List 79 6 5 2 LCD message troubleshooting 80 T 1 The printer does not work normally after being turned 81 on dat 2 Paper jams 82 m 2 1 Paper input jam 1st tray 83 T 2 2 Paper input jam front feeder 84 scant 2 3 Paper feed jam 85 amb 2 4 Paper exit jam 86 3 Paper size error 87 dons 4 Fuser unit error ERROR 71 ERROR 72 ERROR 88 73 wien 5 I F time out between printer and optional tray ERROR 89 81 rd 6 I F time out between printer and Duplex Unit ERROR 90 Table of Contents Page M 7 VF time out occurs between the printer and the 91 operator panel ERROR 80 mum 8 Message cannot be received through the parallel 92 interface TM 9 Message cannot be received through the serial 93 interface TT 10 Data cannot be received through the OKI HSP 94 interface SE 11 Synchronous serial I O error ERROR 74 95 6 5 3 Image Trou
105. e BPX for any updates to this material http bpx okidata com Page 91 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 7 VF time out occurs between the printer and the operator panel ERROR 80 Is the connecting cord of the operator panel connected to the PANEL connector of the Main board properly See Chapter 7 1 Mo Connect the connecting cord of the operating panel to the PANEL connector of the Main board properly Yes Is the connecting cord defective Yes Replace the connecting cord Mo Replace the operator panel assembly Is the printer recovered Mo Replace the Main board YES END Copyright 1998 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 92 OKI Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 8 Message cannot be received through the parallel interface Is the parallel VF ENABLE in HOST IF item of Menu 1 No Set the Parallel F to ENABLE Yes ls the host set to the bidirectional communication Yes Set the parallel I F to the bidirectional communication enable state DISABLE ENABLE in menu level 2 No Set the parallel I F to the bidirectional communication disable state ENABLE DISABLE in menu level 2 Is the printer recovered YES END No Is the connector of the parallel interface cable connected to th
106. e been removed YES END Note After replacing the image drum cartridge set the printer in the user maintenance mode by tuming the power on while pressing the MENU key and reset the drum counter Refer to Users Manual Mo Is the LED head installed properly Check connector HEAD1 14p HEAD2 12p on the Main board and PC Connector on the LED head Mo Install the LED head properly Yes Replace the LED head or the head cable Has the trouble been removed YES END Note After replacing the LED head set the printer in the engine mainte nance mode by turning tha power on while pressing the FORM FEED and ENTER keys Set the LED head drive time Refer to Section 4 2 ge e gg gg ag No Replace the Main board or Power Supply Unit High Voltage Copyright 1998 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 103 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 7 Poor fusing Is paper of the specified grade used Mo Use paper of the specified grade Yes sthe spring of the back up roller normal No Replace the spring Yes s the contact of the fusing unit assy contacted with the contact assy properly Mo Adjust the contact of the fusing unit assy to contact the contact assembly properly Yes Replace the fusing unit as
107. e form of messages on the LCD is provided in Table 4 1 Classification LCD Status Message Recover Method Jam Error PAPER INPUT JAM CHECK FEEDER PAPER FEED JAM CHECK FEEDER Paper size error ERROR PAPER SIZE CHECK FEEDER Tray paper out mmmmmmmm Paper size in the tray being selected Interface Timeout Notifies of occurrence of jam while the paper is being fed from the Multi Feeder Notifies of incorrect size paper feeding from the Multi Feeder Notifies of no paper state of the Multi Feeder Notifies of occurrence of interface timeout between the printer and the Multi Feeder Check the paper in the Multi Feeder Carry out the recover printing by opening the cover removing jammed paper and closing the cover and then turning the error display off When the problem occurs frequently go through the Troubleshooting Check the paper in the Multi Feeder Also check to see if there was a feeding of multiple sheets Carry out the recovery printing by opening the cover and then turning the error display off Load the paper in the Multi Feeder Verify connection of AOLE PCB and square shaped connector Replace the square shaped connector if necessary Replace AOLE PCB Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http opx okidata com Page 203 Service Guide OKIPA
108. e printer prop erly No Connect the connector of the parallel interface cable to the printer properly Yes Is there any defect in the cable broken or bent pin broken wire Yes Replace the parallel interface cable 0n Mo Replace the Main board or ask the user to check the hardware and software at the host side Copyright 1998 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 93 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 9 Message cannot be received through the serial interface is message ERROR HOST I F displayed Yes Setthe RS 232C I F ENABLE in HOST VF items of Menu 1 No Setthe AS 232C IF to ENABLE Mo Do the following items selected for RS232C SERIAL in menu level 2 coincide with those selected at the host side FLOW CONTROL PARITY BAUD RATE MIN BUSY DATA BITS Mo If the selection differs between the printer and the host change the setting of the above items in menu level 2 so as to coincide with the setting at the host side Yes Is the connector of the serial interface cable connected to the printer properly Mo Connect the connector printer properly Yes Is there any defect in the serial interface cable broken or bent pin broken wire Yes Replace the serial interface cable Mo Perform the loop back test using the lo
109. e roller 5 Printing starts after the paper turns off the Write Sensor Hopping Roller Hopping Motor Front Feeder Gear C w one way clutch Registration Roller CAL f Wi J NS MA X om V X N S A Gear A Hopping Roller 1st Hopping Gear Sub Roller w one way clutch home position Front Feeder Plate Pressure Roller Inlet Sensor 9 yon Cuitch Registration nlet Sensor s utch Registration LS Write Sensor I P Clutch Feed 1 NA M aitia Main Motor u Align Roller 2 Feeding After finishing hopping the pulse motor dedicated for driving the registration roller rotates to drive the registration roller The 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 Although Gear D is always rotating due to an all time rotation of the main motor in direction c the registration roller would not rotate because the clutch registration is turned off After completion of hopping turn on the clutch registration to drive the registration roller The registration roller will drive the paper until the paper has passed 3 Charging Charging is effected by applying a DC minus voltage to the charge roller that is in contact with the image drum surface Charge roller Image drum 4 Exposure Light emitted from the LED head
110. ead mode and all correction data stored in EEPROM within the correction control LSI are read by CPU and stored temporarily in the memory ii Next LED head is set to the correction control direct mode and the correction data stored temporarily in the memory is transferred directly to the LED driver i Read of correction data z5Dns min T CLOCK LOAD correrctian data data STRB1 N DATA 3 0 2 4 fec L x Jono PO pCO p a correction pa 5180 N correction pm correction data bon Moz High z STRB2 N STRB3 N oe STRBA N r RD dummycyce HDcycde RDcyde RDcyde i pig PD cycle WL ee i i es ib Mode setting amp clocks amp clocks 8 clocks 8 clocks B clocks Haad data read Correction data read RD Mode sel Total 20824 clocks i LL LL i ge EE F t RD Mode enabled ii Transfer of correction data to head driver correction data Correction dall Correction dala1300 Correction daa zaol Correction data390 Correction datasa 0 E Cormecton dara y Correction dataT3dH Correction data2bH Correction dala 3581 i I CLOCK n HIA nm BH Z FUB r1 LOAD L3 zE os DATA 3 0 mO Sos xt oc od STRBA 1 amp part af A A part of 8 I DIRECT Tp E Total 5200 locks
111. ed No Replace the Main board YES END From 40 2 on the preceding page 1 Yes Is the operator panel connected to the Main board properly No Connect the operator panel properly Yes Is the connecting cord defective Yes Replace the connecting cord Mo Replace the operator panel assembly Is the printer recovered Mo Replace the Main board YES END Yes ls INITIALIZING message shown in the LCD display No Take the proper action following the message shown in the LCD display For details see the Chapter 6 5 1 LCD STATUS messagertrouble list YES END STKFULL io 1 BRRRARARRRRRRARRRER Qe eee eee ee 71 E foc cette ete ee RERRRORORRER OR RA REA RARO DD 1B asasaasahbsabkahsd glial igi ARMAR RATS t TOTO FPP REE Pe OBOGRGRORGR GBORBORGRON ROROROROR ON ROTO FRONT O 1 EEEE EEE E E EE E E E E E E E AR 1 y Piette pepe E cm koh om oh mom hom m obom amp oba x PANEL Sidi Sik Sie oE T e o o E o h a a E a H a H H H H l O JU Abd RS RS RS S CERT TI erg ee Werrerer n wy m vh a v a Y os ok 3 ohm LE oW BO BOR ORORR POR Od EG PEG FE p y tB v tho EER von v BR RR E FAN MOTOR ENVELOPE CLH CLR E p END HPSS Sa a T Oot seesoseuonen 40 LI LI P 7 i Li e 7 P h i 7 re RE EEEEERERELEREEELER eee teuteeeaeteeteens n 3 a xa mn W Rom WR ROW ORO WR Hbom Bob om BOoR OX doom ROS
112. ed cable composed of twisted pair wires is recommended for noise prevention 3 Table of Parallel I F signals Signal Name Signal Compatible ECP Direction 1 DATASTROEE PH jnStobe jHostCIK Host Clk po pramon l o JS o 000 MSB dBewowEGE o 0 0 e 0 e PEPOER ACKNOWLEDGE 11 BUSY 1 9 10 11 BUSY PtrBusy PeriphAck PAPER END AckDataReq SELECT Xflag Xflag 4 1 ee gt PR nAutoFb HostBusy HostAck AUTO FEED E 415 Luc OO 16 WV JSignal Ground D CHASSIS GROUND JOhasisGround O mq o a T 50mAm 19 OV Signal Ground re 20 27 OV Signal Ground i 28 OV Signal Ground NENNEN 29 OV JSignal Ground C Signal Ground 30 SNY Eo O E Jwusw Pe INPUT PRIME o pur o e mew eem NENNEN NENNEN 33 v 0p p j y O 34 oj oo Eoo Jm HILEVEL PR Cf High Level p SEL IN PR inSelectln 1284 Active 184 Active e X Connector pin arrangement 4 Signal level e LOW 0V to 0 8 V e HIGH 42 4 V to 5 0 V 5 Interface circuit a Receiving circuit DATA STROBE and INPUT PRIME Sarane At Re DATA STROBE 560pF INPUT PRIME 0 001uF DATA BIT 1 to 8 5V R3 3 3KQ R3 74LS374 or equivalent 5 V R4 R4 3 3KQ 7407 or equivalent Open collector b Sending circuit 6 Timing charts e compatible mode a Data receiving timing PARALLEL DATA DATA BITs 1 to 8 0 5
113. ed on the inlet sensor lever Yes Does the inlet sensor lever operate smoothly No Replace the inlet sensor lever Yes Clean the inlet sensor 1 on the Power Supply Unit High Voltage or replace the Power Supply Unit High Voltage See Figure 2 3 Sensor Layout Diagram No Replace the hopping roller assembly or paper cassette assembly No Is the hopping roller rotating Yes Set the paper cassette properly Mo l sthe hopping motor rotating Yes GEAR ASSY CLUTCH 250 tumed ON Mo Is acable and connector securely connected between GEAR ASSY CLUTCH and MAIN BOARD Mo Connect the cable firmly Is the printer recoverd YES END Mo Replace the GEAR ASSY CLUTCH 250 Yes Replace the Frame Assy Hopping No Are the cable and connector between the hopping motor and the Main board connected properly see Chapter 7 1 Mo Connect each connector properly or replace the nylon connector cord white 9 pins Yes Is the coil resistance normal resistance about 6 7 3 of the hopping motor normal No Replace the hopping motor Yes Replace the Main board Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 84 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 2 2 Paper input jam front feeder Does jam error occur when the power is turned on
114. ee 7 2 1 for where to install 4MB 8MB Copyright 1998 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 1 4 Specification 6 7 Page 6 Service Guide OKIPAGE 18 18n Chapter 1 Configuration Type Outside dimensions excludes protruding portion Weight Development method Exposure method Paper used Printing speed Desktop Height 13 0 331 mm Width 14 4 366 mm Depth 18 2 462 mm 42 lbs 19 0 kg If installed Duplex 47 Ibs 21 3 kg Dry electrophotography LED stationary head Type e Standard paper Xerox 4200 20 Ibs e Application paper manual face up feed Label Envelope OHP paper Transparency lt Size gt e Standard sizes Letter Legal Executive Envelope with Duplex printing A4 A5 without Duplex printing B5 without Duplex printing A6 without Duplex printing e Applicable sizes Width 3 4 to 8 5 86 to 216 mm Length 5 5 to 14 140 to 355 6 mm Thickness Automatic feed 16 to 28 Ibs 60 to 105 g m Manual feed Label OHP paper transparency Envelope 16 36 Ib First print 8 seconds Continuous print 8 sheets min at duplex print 9 sheets min Warm up time 90 seconds at room temperature 77 F 25 C and rated voltage 120 VAC Paper feeding method Automatic feed or manual feed 8 Pap
115. ee the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 12 OK WT Service Guide OKIPAGE 18 18n Chapter 2 Operation Description 2 2 Power Supply Unit The power supply unit consists of an AC filter circuit a low voltage power supply circuit a high voltage power supply circuit heater drive circuit and photosensors 1 Low voltage power supply circuit This circuit generates the following voltages Output voltage Use Logic circuit supply voltage Motor and fan drive voltage and source voltage for high voltage supply Reset circuit RS232C Line voltage RS232C Line voltage LED HEAD supply voltage 2 High voltage power supply circuit This circuit generates the following voltages necessary for electro photographic processing from 30 V according 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 Output Voltage Use Remarks SubCH 15uA Voltage applied to Sub charging roller CH j 30KV X VollageappliIedtochargngroller 10 10 DB Jj 220V 300V Voltageappliedto developingroller 450 V Voltage applied to toner supply roller ERE 4 KV 1 3 kV Voltage applied to transfer roller Variable Only 4450 V 1350V Voltage applied to cleaning roller DS 3 Photosensor The photosensor mounted on
116. er Exchange BPX for any updates to this material http bpx okidata com Page 143 Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 4 3 2 Troubleshooting Flow e JAM error Duplex INPUT JAM Is the leading edge of paper is fed in the Duplex unit Yes Has the leading edge of paper reached the Duplex In sensor Yes Is the Duplex In sensor lever operating normally Yes Is the connection cord between the Duplex In sensor and the Board LEX connected properly Yes Does the connection cord have a break Yes Replace the connection cord Con nection Code Wire No Replace the Duplex In sensor FX50 Photo Sensor YES END Mo Connect the connection cord properly No Replace the Duplex In sensor lever LEVER Sensor D IN and SPRING Sensor D IN Mo Is the connection cord between the Motor and the Board LEX Yes Replace the GEAR Assy YES END No Replace the Motor YES END No Replace the Board LEX Mo Connect the connection cord properly No Does the square shaped connector between the Duplex unit and printer unit has any trouble ls there a pin bend or other troubles Yes ls the connection cord between the Duplex unit and the printer unit connected properly See Chapter 7 1 and Appendix C Chapter 5 1 Yes Does the connection cord have a break Yes Replace the connection cord Core Assy DUPLEX Mo lsthe connection between the solenoid and the Board LEX connec
117. er delivery method Face down face up 9 Resolution 600 dpi x 600 dpi default 600 x 1200 dots inch 10 Power input 120 VAC 15 230 VAC 10 11 Power consumption Peak Approx 820W Typical operation Approx 350W Idle Approx 95W Power save mode Approx 25W 12 Temperature and humidity in operation Power off mode During Storage Unit Temperature 90 90 32 110 14 110 F 10 32 0 43 10 43 Humidity 20 0 10 90 10 90 Maximum wet bulb temperature TM Minimum difference of wet and dry bulb temperature Notes 1 Storage conditions specified above apply to printers in packed condition 2 Temperature and humidity must be in the range where no condensation occurs Temperature C 32 28 Operation range 10 20 80 Humidity 13 Noise During operation 52 dBA or less without second tray 52 dBA or less with second tray At standby 45 dBA or less Power save mode 43 dBA or less 14 Consumables Toner cartridge kit 6 000 5 duty Image drum cartridge 30 000 at 5 density continuous printing Copyright 1998 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 7 Service Guide OKIPAGE 18 18n Chapter 1 Configuration 1 5 Safety Standards 1 5 1 Certification Label 1 5 2 Warning Label Copyright 1998 Okidata Division of OK
118. erica Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 163 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 3 5 Motor 1 Remove the Cover front assy See section 3 3 2 2 Remove the PCB cover bracket See section 3 3 3 3 Remove the roller cover bracket See section 3 3 4 4 Unscrew seven screws 1 to remove the bottom bracket 2 5 Unscrew five screws 3 to remove the Frame side L assy 4 and Frame side R 5 6 Take away two screws 6 and connector to remove the Motor 7 Copyright 1998 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 164 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 3 6 Connector IMSA 9714N 14B Connector IMSA 9714N 14A 1 Remove the Motor See section 3 3 5 2 Unscrew two screws 1 to remove Connector IMSA 9714N 14B 2 and Plate Earth FR 3 3 Unscrew two screws 4 to remove the connector IMSA 9714N 14A 5 Copyright 1998 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 165 OK WT Service Guide OKIPAGE 18 18n Chapter D Se
119. fer Roller TR Gear TR Bearing 3 3 22 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 amp Lever Paper near end 3 3 29 Guide Assy Cassette L 3 3 30 Guide Assy Cassette R Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 30 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 1 Face up Stacker Assy 1 Turn off the AC Power Switch and unplug the AC Power Cord from the outlet 2 Disconnect the Interface Cable 1 3 Open the face up stacker assy 2 unhook the right and left projections and then remove the face up stacker assy 2 Copyright 1998 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 i Page 31 OKI Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 2 Contact Assy 1 Open the stacker assy 1 and unscrew 2 screws 2 to remove the cover assy side L 3 2 Unscrew 2 screws 4 and remove the plate contact 5 and contact Assy 6 Note Don t deform the electrode plates of the contact assy 6 Unlock this part before removing W Copyright 1998 Okidata Division
120. ge opposite in polarity to the toner is applied to the paper from its reverse side The application of a high positive voltage from the power supply to the transfer roller causes the positive charge induced to the transfer roller surface to be transferred to the paper at the contact between the transfer roller and the paper As a results toner charged negative that is attracted to the image drum surface is transferred to the upper side of the paper by the positive charge on the lower side of the paper Image drum LL i ee AT ae PT S Transfer raller 7 Fusing After the end of the transfer the unfused toner image is fused on the paper under heat and pressure as it passes between the heater roller and the back up roller The heater roller with a Teflon coating incorporates a 750W heater Halogen lamp which heats the heat roller A thermistor which is in contact with the heater roller regulates the heater roller at a predetermined temperature about 180 200 C A safety thermostat cuts off voltage supply to the heater by opening the thermostat in the event of abnormal temperature rises The back up roller is held under a pressure of 5 kg from the pressure spring at each side Heater Separation Claw Thermistor Heater Roller Paper i Pressure Spring 8 Cleaning After the end of the transfer residual toner on the image drum is attracted to the cleaning roller temporarily by static electricity to
121. ght 1998 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 132 Ook Ty Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 3 3 Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassembly order diagram below Duplex Unit Board LEX 3 3 1 Connector 3 3 2 1 Photo Sensor 3 3 3 Solenoid Assy 3 3 4 Motor 3 3 5 3 3 1 Board LEX 3 3 2 Connector IMSA 9714N 14A 3 3 3 Photo Sensor 3 3 4 SOLENOID Assy 3 3 5 Motor Copyright 1998 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 133 OK WT Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 3 3 1 Board LEX 1 Remove two LEVER Lock DUP 1 by rotating them in the arrow direction 2 Unscrews five screws 2 to remove the bracket 3 3 Unlatch all the nails and unplug all the connectors 4 to remove the Board LEX 5 Note When installing the Board LEX install it positioning earth plate over the PCB http bpx okidata com Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Ex
122. iness Partner Exchange BPX for any updates to this material http opx okidata com Page 89 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 5 I F time out between printer and optional tray ERROR 81 Is an optional tray 2nd 3rd tray or envelope feeder used Yes Is the connection between the Main board and the optional tray connected properly See Chapter 7 1 Mo Connect the cable properly Yes Replace the Main board Is the printer recovered No lsolate the trouble by following the 2nd 3rd tray or multi feeder maintenance manual See Appendix D or E YES END Mo Heplace the Main board Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 90 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 6 I F time out between printer and Duplex Unit ERROR 83 Is an Duplex Unit used Yes Is the connection between the Main board and the Duplex Unit connected properly See Chapter 7 1 Mo Connect the cable properly Yes Replace the Main board Is the printer recovered No Isolate the trouble by following the Duplex Unit maintenance manual See appendix C YES END Ma Replace the Main board Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchang
123. ion Description OKIPAGE 18 consists of a main control board power supply unit 120V 230V power supply unit high voltage and operator panel and an electro photographic process mechanism The control board receives data through a host I F decodes and edits the data and stores the edited data in a memory 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 it transfers the bit image data to an LED head in units of one dot line The electro photographic process mechanism prints data on paper The operator panel is used for operations and status display Fig 2 1 shows an OKIPAGE 18 block diagram MAIN BOARD BOARD FFF PLEX uri l Paper end sensor Paper near end sensor Tray size soeono s PXC sensor board Clutch tor TRANSISTOR necis Pol Centronics _ F Clutch for Hopping Roller AS2320 Hopping Motor 9 m LAN etc Option 3 p 5 LED HEAD JV EV V V 3V Inlet sensori paper sensor Inlet sensor Toner sensor THERMISTOR C Sub CH SUB CHARGE ROLLER pisci VeL CHARGE ROLLER CIRCUIT m TRANFER ROLLER DEVELOPPING ROLLER SB TONER SUPPLY ROLLER CB CLEANING ROLLER FAN POWER thigh voltage AC120V 230V Figure 2 1 OKIPAGE 18 block diagram Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Par
124. is the main motor of this mechanism 4 Clutch for Registration Switches the transfer of power to Roller Registration if necessary depending on the power Motor Main and instructions from the control PCB 5b Clutch for Feed Roller Switches the transfer of power to Feed Roller if necessary depending on the power from Motor Main and instructions from the control PCB 6 LED head Image data for each dot line from the control board is received by the shift register and latch register The 4992 LEDs are driven to radiate the image data to the image drum 7 Fuser The fuser consists of a heater a heat roller a thermistor and a thermostat An AC voltage from the power supply board is applied to the heater under the control of the HEATON signal from the control board This 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 MEDIUM 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 forcibly Copyright 1998 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 15 OK WT Service Guide OKIPAGE 18 18n Chap
125. leG ST 1 37 40299001 Gear IdleH ST 1 38 X 403028001 Gear IdleJ T 1 39 40313501 JBearng Plastic Feed J 1 7 o 40 51608201 Bearing 1 0 0 0 1 41 40371501 j GearAssy Cluth Z0 J 1 0 42 40432800 jPlate FG ts 1 1 43 40313201 JRollrAssy Feed J 1 44 40371601 GearAssy Cluth 240 45 50807301 JjEPRockLevrR Tif 46 50928401 EP Lock Spring ST 1 0 47 40301001 JjRollerAssy BK ST 1 Gear Idle EA HEDDM MENENEMEKKNM Gear idle EB E 50 40302501 Lever Backuprelease J 1 1 51 40929101 Heat Assy A4 120V T 1 0 EOM RMENEEN MIEMRMESREMEEMNMEMEMES MENT MENS 53 40307401 GuideAssy Eject 1 1 54 53073101 DamperAmm Cauking 1 55 40587001 StackerAssy For Maintenance 1 f es 57 40365401 jSensor StackFull Pt 58 40409201 Film Guide S 1 59 40409901 jFlm FG 1 49 60 53073401 jCabeCover S 1 0 AJI 61 40450501 HeadCableAssy 1 DC Fan Motor 92 Plate FG F 40443301 LED Head 55506001 ZCAT 1325 0530A R Core 51609401 Copyright 1998 Okidata Division of OK
126. material http bpx okidata com Page 110 OK WT Service Guide OKIPAGE 18 18n Chapter 7 Wiring Diagram 7 2 PCB Layout 7 2 1 Main Control Board BOARD FFF 7 2 2 Power supply board AC120V 230V 7 2 3 Power supply board High voltage 7 2 4 Flash ROM module BOARD FSL or FSL 2 Copyright 1998 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 111 Service Guide OKIPAGE 18 18n Chapter 7 Wiring Diagram 7 2 1 Main Control Board HBY PCB Motor driver for Hopping Motor sockets for DRAM SIMM Socket for FLASH SIMM EEPHOM Motor driver for Main Motor o agonnoanoocoogomo 36 7 i es oe r JetosH IN32 12 DUP a a J a J e E a e a I ONS AS WOH 12d B gt 6 O b g S B a G D g D d D d 0000 WOY 12d HEAD Bn s ueris RHR RPE SF DEGO CEGO aA srtm im s snmsig mong s mos uis mns rmi RAH Go 2 a a 2 a a n Ica LNSAZ WOH 19d Lago WOY 19d b B CD 0 G p 0 p g G o p i p p p D E G b d Bo g b E p D a pG oogb uo a 6 D d S 0 Bee b g ea oe i cn 6 O b p B a o d S D Qao WOH Sd Erns SIZE zi gp onDzsgpotunolouoltmuuissmmiostoussstu ga ea us n LL Hd LM e e REMER ER a a a z z s E EPE ll e 5 E scl s s 5 te
127. move the Power supply unit AC DC 120 230V 4 and Power supply unit High voltage 5 Copyright 1998 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 i Page 57 OKI Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 28 Lever Paper end amp Lever Paper near end 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the frame main See 3 3 12 7 3 Remove screw 1 and then remove the PLATE Base 2 4 Remove two Spacer Cord KGPS 5RF 3 and then remove FILM Insulation 4 5 Remove four screws 5 and then remove the FRAME ASS Hopping 6 6 Remove the GEAR Z58 9 and GEAR Z42 8 At this time the ADF Bearing 10 can also be detached simultaneously 7 Remove the GEAR Z368 14 ADF Bearing 15 ROLLER Guide 16 and SHAFT Hopping 17 and Bracket Sub roller 28 At this time the Lock Pin 18 can also be detached simultaneously 8 Remove two screws 7 and then remove the SPRING Release 11 and then remove the LEVER Sub roller 12 and PLATE Hopping 13 9 Remove the GEAR Planet Z28 19 Plate Planet 20 BRACKET Spring Sub 21 and SPRING Sub ROLLER 22 10 Press the clamp part of Lever Paper end 23 and Lever Paper near end 24 Remove the Lever Paper end 23 and Lever Paper near end 24 by pushing it upward from the FR
128. nable or exclude disable the total number of printed pages counted at the engine at the time of menu printing 3 Rolling ASCII continuous printing e Iherolling ASCII pattern is printed continuously for various engine tests e Press the ON LINE key to cancel this mode 4 RS232C LOOP TEST e Performs a loop test of RS 232C 5 EEPROM reset e All EEPROM areas including Menu level 2 to the factory default values e The following items are excluded Head drive time setting Fine adjustment of printing start position Standard tray paper feed amount setting e Transition to the operation mode occurs upon completion of resetting e Press the Menu key to update each category The operation returns to the first category after updating the last category 6 HSP ERROR recovery e Select HSP ERROR recovery function either recover or stop 7 HSP ERROR count e Display total HSP ERROR count 8 HSP ERROR count reset e Reset the HSP ERROR counter 9 SIDM enable disable e If it s selected disable cannot select SIDM emulations by Menu System maintenance mode menu system RECOVER key Power ON LCD display SYS MNT Press the PAGE CNT nnnnnn Menu key Press the Menu key Press the PAGE PRT l or a d ENABLE Writing into the EEPROM is performed DISABLE when the Enter key is pressed Press the Menu key Press the Press the End of processing Enter key CONTINUOUS JON LINE key is perfo
129. nd RTS PR Stayspacelevel ED NE CGHEMMEMEMMMEMEE jNetcomeced 6 rF JA Z O J Notcomeced 7 SigalGreud SG Signal ground 8 17 Nt E 18 PS PREV OMA max p19 fC __ Not connected _ 20 Data Terminal Ready DTR lt PR_ Dataterminalready RE E Hp A E 2 e X Connector pin arrangement 13 1 Oooo co 0000000 O0oo0ooo0o0o 00c00 25 14 View from the cable side 4 Signal level e MARK polarity 3V to 15V LOGIC 1 e SPACE polarity 3V to 15V LOGIC 0 5 Interface circuit a Receiving circuit 75189 or equivalent 12V INPUT 12V b Sending circuit 75188 or equivalent INPUT OUTPUT OUTPUT 9V 9V Note The above signal level is for the case where 3KOhms x 15pF is being connected to the terminal 6 Communication protocol a READY BUSY protocol b X ON X OFF protocol Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 122 Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 1 OUTLINE 1 1 Functions 1 2 External View and Component Names Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange
130. ng start position setting e Sets the printing start position 6 Drum count total display e Displays on the LCD the total number of drum revolutions in the unit counted at the engine 7 Drum count display e Displays on the LCD the total number of EP drum revolutions counted at the engine 8 Setting of standard tray paper feed length e This function sets the paper feed length of standard tray paper 9 Setting of front feeder paper feed length e This function sets the paper feed length of the front feeder 10 Setting of High Capacity Second Paper Feeder paper feed length e This function sets the paper feed length of the High Capacity Second Paper Feeder 11 Selection of High Capacity Second Paper Feeder download table e This function selects the download table for the High Capacity Second Paper Feeder 12 Setting of High Capacity Third Paper Feeder paper feed length i This function sets the paper feed length of the High capacity Third paper feeder 13 Selection of High Capacity Third paper feeder download table e This function selects the download table for the High capacity third paper feeder 14 Setting of Multi Feeder paper feed length e This function sets the paper feed length of the Multi Feeder 15 Selection of Multi Feeder download table e This function selects the download table for the Multi Feeder 16 Setting of duplex feed length e This function sets the paper feed length of the duplex 17 Fu
131. nism The LEVER Lock can be pulled outwards and the sheet route section of the Duplex opens by pulling out the cassette This enables a jam to be released Structurally the LEVER Release can be pushed up by back edge of cassette and the sheet route automatically close when the cassette is returned LEVER Release Dup LEVER Lock Copyright 1998 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 128 OK WT Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 2 3 Removing Installing Duplex Unit Removing Duplex Unit 1 Power Off and remove the Paper Cassette from 1st tray 2 Remove the Lever Release from the boss of the Hopping Frame LEVER Release Dup Release Release LEVER Release Dup 3 Rotate the LEVER Lock Dup in the direction of the arrow to release the Lock Connector LEVER Lock Dup LEVER Lock Dup 4 Pull the Duplex Unit out of the unit Printer Groove Duplex Unit LEVER Release Dup Installing Duplex Unit 1 Hold the LEVER Lock Dup in horizontal lock position Then insert the Duplex Unit along the groove up to accord both rear faces between printer and Duplex Unit a a Note Before setting it to the en unit make sure that the LEVER Release Dup is p locked at the angle as shown Locking point
132. op test function in the system mainte nance mode To make this test it is necessary to form the following loop back connector Connect the loop back connector to port instead of connecting the host Is LOOP TEST displayed ERROR Mo Replace the serial interface cable Is the printer recovered YES END Mo Replace the Main board Yes Replace the Main board or ask the user to check the hardware and software at the host side loop back connector ais ARTS 5CTS 8 NOT USED 11 SSD Serial interface cable i DSR 20 DTR DB255 Connection method Test connector connecting drawing Copyright 1998 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 94 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 10 Data cannot be received through the OKI HSP interface ls the interface board option connected to the OKI HSF interface connector on the Main board properly Mo Connect the interface board option to the OKI HSP interface connector properly Yes Is there any broken or bent pin in the interface board option Yes Askthe user to replace the interface board option Mo Replace the Main board a 49 y 0 9 OK No Atrouble may exist in the interface board option interface cable or host side Ask the user to check these items Co
133. or any updates to this material http bpx okidata com Page 71 OK WT Service Guide OKIPAGE 18 18n Chapter 5 Periodical Maintenance 5 2 Cleaning Remove any toner or dust Clean inside and around the printer with a piece of cloth when necessary Use the handy clearner VACUUM for cleaning the printers interior Note Do not touch the image drum unit LED lens array or LED head connector block 5 2 1 Cleaning the LED Lens Array Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http opx okidata com Page 72 OK WT Service Guide OKIPAGE 18 18n Chapter 5 Periodical Maintenance 5 2 1 Cleaning the LED Lens Array 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 1 Set the LED head cleaner in the LED lens array as shown in the figure below and slide the cleaner left and right several time to clean the head Caution Do not press the LED head cleaner against the LED lens array LED head cleaner Figure 5 2 Copyright 1998 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
134. or on the Power Supply Unit AC120V or 230 See Figure 2 3 Sensor Layout Diagram Is the printer recovered Mo Replace the Power Supply Unit A amp C120V or 230W l YES END Mo Is the face up stacker drawn out or pushed into the printer completely Mo Draw the face up stacker out the printer completely or push it into the printer completely Yes ls the eject roller assembly installed properly No Install the eject roller assembly properly Yes Replace the eject roller assembly Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 87 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 3 Paper size error l paper of the specified size used gh tg r 4 o i Mo Use paper of the specified size Yes Do the inlet sensor lever and paper width sensor lever operate smoothly Mo Replace the inlet sensor lever or paper width sensor lever Is the printer recovered Wo Clean the inlet sensor 1 or paper width sensor on the Power Supply Unit High Voltage See Figure 2 3 Sensor Layout Diagram ls the printer recovered Mo Replace the Power Supply Unit High Voltage YES END YES END YES Does the outlet sensor lever operate smoothly Mo Replace the outlet sensor lever Is the printer recovered Mo Clean the outlet sensor on the Power
135. ors properly Mo Is the coil resistance normal resistance between pins 1 and 2 between pins 3 and 4 3 1 3 of the drum motor normal Mo Replace the drum motor Is the printer recovered Mo Heplace the Main board YES END Goto on the next page A From on the preceding page A Ma Is the transfer roller rotating smoothly Mo lsthere any defective gear of the transfer roller Yes Replace the defective gear Mo Replace the transfer roller No Is the fuser unit installed properly Mo Install the fuser unit properly No Is the image drum cartridge set properly No Setthe image drum cartridge properly No Does the paper sensor lever operate smoothly Mo Replace the paper sensor lever Yes Clean the paper sensor on the Power Supply Unit High Voltage See Figure 2 3 Sensor Layout Diagram Is the printer recovered Mo Replace the Power Supply Unit High Voltage YES END Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 86 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 2 4 Paper exit jam Does a paper exit jam error occur when the power is turned on YES Is the paper on the outlet sensor lever Yes Remove the paper Mo Does the outlet sensor lever operate smoothly Mo Replace the outlet sensor lever Yes Clean the outlet sens
136. ove PLATE Base and FRAME Assy Hopping See 3 3 28 5 4 Unscrew two screw 1 and then remove Guide Assy Cassette R 2 5 Remove SPRING Sheet 3 and then remove LINK Sheet 4 and pull block 5 Pay attention the direction of hook 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 Square shaped connector 176496 1 12 and Nylon Connector Cord 13 and TR 23 11 R CORE 14 9 Unscrew two screws 15 and remove the two Plate Earth Bottom 16 10 Unscrew two screws 17 and remove the Square shaped connector 5 176496 1 18 and Connection Cord Wire 19 and TR 23 11 R CORE 20 11 Unscrew a screw 21 and remove the Detector spring 22 12 Unscrew a screw 23 and remove the Board PXC 24 Copyright 1998 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 60 OK WT Service Guide OKIPAGE 18 18n Chapter 4 Adjustment 4 0 Adjustment This chapter explains the adjustment necessary when replacing a part Adjustment is made by changing a parameter value set in EEPROM on the controller PCB The parameters are set with key presses from the operator panel This printer has three maintenance modes used to reset page counts
137. paper feeder which is located under the printer rotates the hopping motor according to the signal from the printer to supply papers to the printer automatically The main functions are as followings Applicable media Paper Type e Cut Sheet Size A4 A5 B5 Letter Executive Legal13 Legal14 e Special Size Paper Width 148 to 216mm Paper length 210 to 356mm Weight e 60 105 g m e Paper loading capacity 75 g m paper 530 sheets Copyright 1998 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 151 Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option Cassette Assy Frame side L Assy Copyright 1998 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 152 Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 2 0 Description of operation 2 1 Driving Mechanism 2 2 Hopper Mechanism Copyright 1998 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 m Page 153 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 2 1 Driving Mechanism
138. pyright 1998 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 95 Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 11 Synchronous serial I O error ERROR 74 Are POWER connector of the Main board and Connection cord wire Figure 8 2 Mo 21 properly Are Connection cord wire Figure8 2 No 21 and CN3 connector of the Power Supply Unit AC120V or 230V connected properly No Connect the connectors properly Yes Is there any flaw or breake Yes Replace the connection cord wire Yes Replace the Main board 224 Is the printer recovered No Replace the Power Supply Unit High Voltage YES END Copyright 1998 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 96 OK WT Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 6 5 3 Image Troubleshooting Procedures for troubleshooting for the cases of abnormal image printouts are explained below Figure 6 3 below shows typical abnormal images Problem Flowchart number Images are light or blurred entirely Figure 6 4 A Dark background density Figure 6 4 B Blank paper is output Figure 6 4 C Black belts stripes in the vertical direction Figure 6 4 D Cyclical defect
139. r 6 Troubleshooting Procedures 6 5 Troubleshooting Flowchart If troubles should develop in this printer troubleshoot in the following procedure flow Troubles Troubleshoot from the LED Perform detailed trouble indicated by LCD status message list shooting with the trouble message See 6 5 1 shooting chart See 6 5 2 Image troubles Perform troubleshooting and troubles that with the troubleshooting are not indicated by chart See 6 5 5 LCD message 6 5 1 LCD status message trouble list 6 5 2 LCD message troubleshooting 6 5 3 Image troubleshooting Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 79 OKI Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 6 5 1 Status Monitor Message List Table 6 1 lists the statuses and troubles to be displayed on the status monitor in the message format LED status o OFF QO BLINK O ON O Undefined Table 6 1 Category Status Message e Explanation ode Normal status Warming Up 18 00 Warming up status Normal operation Normal status Online Ready 00 10 Online ready status Normal operation Normal status Power Save Mode 00 20 Normal operation Normal status Toner Low 10 00 The toner amount of the Normal toner cartridge is small operation replace the toner cartridge Normal status Toner Sensor
140. recautions Concerning Parts Replacement 1 Parts replacements must be carried out by first turning the printer power switch off O and removing the Duplex Unit from the printer 2 Do not disassemble the Duplex Unit if it is operating normally 3 Establish the extent of disassembly suitable for the purpose of the procedure and do not disassemble any more than necessary 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 followed 6 Small parts such as screws and collars can easily be lost therefore these parts should be temporarily fixed in the original location 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 Table 3 1 Service Tools No Digital multimeter Handy cleaner Connector remover OKI P N 4PP4076 5395P1 Copyright 1998 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 131 Service Guide OKIPAGE 18 18n Chapter C Duplex Unit Maintenance option 3 2 Parts Layout This section describes the layout of the main components Photo sensor Control board d Board LEX IMSA 9714N 14A Copyri
141. remove the Roller assy feed 3 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 160 Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 3 2 Cover front assy 1 Unscrew two screws 1 to remove the Cover front assy 2 p mh L F Copyright 1998 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 161 Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 3 3 Board BBB 1 Unscrew a screw 1 to remove the PCB cover bracket 2 2 Take away all connectors 3 and three screws 4 to remove the Board BBB 5 D Copyright 1998 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 162 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 3 3 4 Lever paper end Lever paper near end 1 Unscrew five screws 1 to remove roller cover bracket 2 and PLATE Earth L 3 2 Disengage latches to remove the Lever paper end 4 and Lever paper near end 5 Copyright 1998 Okidata Division of OKI Am
142. rior to the Troubleshooting 4 2 Preparations for the Troubleshooting 4 3 Troubleshooting Method Copyright 1998 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 171 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 4 1 Precautions Prior to the Troubleshooting 1 Go through the basic checking items provided in the Operator Guide 2 Obtain detailed information concerning the problem from the user 3 Go through the checking in the conditions similar to that in which the problem occurred Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 172 OK WT Service Guide OKIPAGE 18 18n Chapter D Second Third Paper Feeder Maint option 4 2 Preparations for the Troubleshooting 1 Display on the Operator panel The status of the problem is displayed on the LCD Liquid Crystal Display on the Operator panel Go through the appropriate troubleshooting procedures according to the messages displayed on the LCD Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 173 Service Guide OKIPAGE
143. rmed by the CONT PRT SM CONTINUOUS mmo 707 eerte pere Press the Menu key Press the Loop test Eee Hess oy Press the After the end Enter key of processing EEPROM ON LINE n Press the dore key HSP ERR RECOVER 7 9 STOP HSP ERR CNT nnn Press the Enter key HSP ERR HSP ERR LL f CNT RST RESETNG cement Press the Press the SIDM lore key ENABLE m DISABLE Menu key Press the ON LINE key INITIALIZING ON LINE Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 64 OK WT Service Guide OKIPAGE 18 18n Chapter 4 Adjustment 4 1 3 Engine maintenance mode e The engine maintenance mode is activated when the power is turned ON while pressing the Form Feed key and Enter key e This mode adopts the menu for function selection e The method for exit from this mode depends on the setting e The engine maintenance mode is provided with the following functions 1 Head type setting select LED Head type e Sets the select LED head type 2 Head drive time setting e Sets the drive time of the LED head 3 Head drive time setting at auto head type e This function sets head drive time when HEADTYPE AUTO is selected 4 Head strobe time at 600 x 1200 dpi e This function sets head strobe time at 600 x 1200 dpi 5 Printi
144. ro photographic Process 2 3 1 Electro photographic process mechanism 2 3 2 Electro photographic process 2 3 3 Process operation descriptions 2 3 4 Revision of LED Head Illumination Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 14 OK WT Service Guide OKIPAGE 18 18n Chapter 2 Operation Description 2 3 1 Electro photographic process mechanism This mechanism prints image data from the control board on the paper by electro photographic process The Figure 2 4 shows the layout of the electro photographic process mechanism Image Drum Unit LED HEAD Heat Assy Hopping Motor Front Hopping Roller m Face Up stacker 1st Hopping Roller Motor Main Sub Roller Figure 2 4 1 Image drum unit The image drum unit consists of a sensitive drum a charger and a developer The unit forms a toner image on the sensitive drum using a electrostatic latent image formed by the LED head 2 Hopping motor This motor is a pulse motor of 48 steps rotation that is two phase excited by the signal from the control board It drives the hopping roller of the first tray and the front feed roller via two one way clutches according to the direction of rotation 3 Motor Main This motor is a pulse motor of 72 steps rotation that is two phase excited by the signal from the control board and
145. rror Check the operation of the toner sensor lever Replace the Power Supply Unit High Voltage Replace the Main Board 71 72 73 74 17 Note When replacing the main board install the EEPROM mounted on the replaced main board I F timeout occurred between the printer see Section 6 5 2 main unit and the operator panel I F timeout occurred between the printer main unit and the operator panel I F timeout occurred between the printer and the Duplex Unit Printing sequence error in the Duplex unit A watchdog timer timeout occurred Turn the power off then on Replace the Main board BOARD FFF 81 83 84 Note When replacing the Main Board install the EEPROM mounted on the replaced Main Board Category Processor error LCD message ERROR CONTROLLER nn aaaaaaaa FO F1 F2 F3 F4 F5 F6 7 F READY LED Light off ATTENTION LED Flash Troubleorstatis Remedy O ES error occurred in the controller n 1 Exception Code aaaaaaaa Error address Exception code 1 3 Reserved Turn the power off then on D F Replace the Main board BOARD FFF Note When replacing the Main Board install the EEPROM mounted on the replaced Main board C Address Error Exception Store see above instruction 7 Bus Error Exception Load instruction see above store instruction 4 5 e pe O e NNNM O ne CE E o Arithmetic Overflow Exception Copyright 1998
146. ser count display e Displays on the LCD the total number of printed pages counted at the engine 18 Fuser count reset e When the fuser unit is replaced the maintenance person uses this fuser count reset function to reset the fuser lifetime e After the fuser counter is reset the engine enters into the operation mode automatically 19 Engine reset e AI EEPROM areas used by the engine are reset to the factory default values e The following items are excluded Menu level 1 Menu level 2 Operator panel menu disable enable Page print disable enable e Transition to the operation mode occurs upon completion of resetting Note Do not change the default value of 1 5 8 16 they are the parameter for adjusting in the factory e Engine maintenance mode menu system ENTERKey FORM FEED l 4 j Power ON LCD display ENG MNT Press the Manu kay HEAD TYPE Press the Manu kay Press the Menu key STRB TIM No 0 Press the Menu key PRINTPOS 0 mm Press the Menu key DAUM CNT T nnnnnn Press the Manu kay DRUM CNT nnnnnr Press the Menu key Press the lor Pkey i i Press the lor Pky 88 ie Press the lor Day Press the s or Prey Writing into the EEPROM is performed when the Enter key is pressed Writing into the EEPROM is performed when the Enter key is pressed Writing into the E
147. serial interface The following protocol is supported for the serial interface conforming to EIA RS232C e READY BUSY DTR HI or DTR LO e X ON X OFF e RBST X ON For the electrical physical characteristics of the interface see APPENDIX B c OKI HSP interface Option This interface slot is an OKI unique universal interface that provides the platform to connect option boards including those supplied by third party venders such as the LAN connection expansion board and SCSI expansion board Any expansion boards compatible with this interface can be mounted on the Control board in the piggyback board without modifying the program at the printer side The conceptual diagram of the OKI HSP interface is shown in Figure 2 2 For the electrical physical characteristics of the OKI HSP interface see the OKI HSP interface technical manual Printer Network etc Control board LAN expansion board OKI HSF interface Tl igure 2 2 7 RAM module e Pin layout e Basic specification Type 72 pins Standard SIMM 32 bits buss width Note EDO SIMM type Access time 60ns 7Ons 80ns 100ns Capacity 16 or 32 MB Parity None 8 Flash ROM module e Pin layout Board FSL or Board FSL 2 4MB e Basic specification Type 72 pins SIMM 32 bits buss width Access time 90ns Capacity 4or8 MB Copyright 1998 Okidata Division of OKI America Inc All rights reserved S
148. shooting Method 173 4 3 1 LCD Status Message List 174 4 3 2 Troubleshooting Flow 175 5 0 Connection Diagram 176 9 1 Interconnection Diagram 177 0 2 PCB Layout 178 6 0 Parts List 179 E Multi Purpose Feeder Maintenance Table of Contents Page 1 0 Outline 1 1 Functions 1 2 External View and Component Names 2 0 Mechanism Description 2 1 General Mechanism 2 2 Hopper Mechanism 3 0 Parts Replacement 9 1 Precautions Concerning Parts Replacement 9 2 Parts Layout 3 9 Parts Replacement Methods ancien 3 3 1 Separator un 3 3 2 AOLE PCB PAS 3 3 3 Square shaped connector didus 3 9 4 Hopping Motor ies 3 3 5 Planet gear P 3 3 6 Roller B end 3 3 7 Roller A iiis 3 3 8 Mini pitch belt amp Feed roller 4 0 Troubleshooting 4 1 Precautions Prior to the Troubleshooting 4 2 Preparations for the Troubleshooting 4 3 Troubleshooting Method MEET 4 3 1 LCD Status Message List iiai 4 3 2 Troubleshooting Flow 5 0 Connection Diagram 9 1 Interconnection Diagram D 2 PCB Layout 6 0 Parts List 180 181 182 184 185 186 187 188 189 190 191 192 193 194 196 197 198 200 201 202 204 205 206 207 s Page 1 OK WT Service Guide OKIPAGE 18 18n Chapter 0 Introduction Preface This maintenance manual describes the field maintenance methods for OKIPAGE 18 This manual is written for use by maintenance personnel Note however that the user
149. store the Adobe PostScript Level 2 program and its fonts 3 DRAM 16 Megabyte DRAM 64 Mbit DRAM x 2 is mounted as resident memory to be used for storing the program and providing various buffers This DRAM is expandable up to 128 Mbytes by adding expansion memory SIMMs This DRAM provides the areas shown in the following table Memory area Use Memory capacity setting Do 5 5 MENU Expansion RAM received from the host interface Page buffer Adds print information to the Expandable analyzed receive data and stored the resulted data cae id dl buffer Font cache Stores bit map fonts generated by Enable Expandable buffer the font rasterizer based on scalable font information 4 EEPROM EEPROM has a 16 kbit capacity and stores the following data e Menu data e Various counter data page counter drum counter fuser counter etc e Adjustment parameters LED head drive time print start position etc 5 LSI LZ9FF22 Built in device Serial I O port Control of serial interface between controller and 2nd tray 3rd tray Multi purpose feeder Control of serial interface between controller and Duplex unit Motor drive controler Control of Hopping motor I O Port Inputting of various sensor signals Outputting if various control signals 6 Host interface This printer has the following interfaces to the host e Centronics bidirectional parallel interface e HhS232C interface e OKI HSP interface
150. sy Has the trouble been removed YES END No Replace the Main board or Power Supply Unit High Voltage Copyright 1998 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 104 OK UJ Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 8 White belts or streaks in the vertical direction Are the LED lens dirty Yes Clean the LED lens No Is the contact plate of the transfer roller contacted with the Power Supply Unit High Voltage properly See Figure 6 6 No Make the contact plate contact with the Power Supply Unit High Voltage properly Yes Replace the transfer roller See 3 3 36 Has the trouble been removed YES END No Is the LED head installed properly Check connector HEAD1 14p HEAD 12p on the Main board and PC connector on the LED head Mo Install the LED head properly Yes Replace the LED head Has the trouble been removed YES END Note After replacing the LED head set the printer in the engine mainte nance mode by turning the power on while pressing the FORM FEED and ENTEH keys Set the LED head drive time Refer to Section 4 2 Yes Replace the image drum cartridge Has the trouble been removed YES END Note After replacing the image drum cartridge set the printer in the user maintenance mode by turning the power on while pressing tha M
151. t 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 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 Engaging section Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 196 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 3 3 7 Roller A 1 Remove the motor bracket assy See 3 3 5 2 Remove two gears 1 and then another gear 2 3 Disengage the plate 3 and the frame 4 4 Remove four screws 5 and remove the frame 4 see 3 3 6 5 Move the belt to the right and remove it from the one way pulley 6 6 Move the carrier roller assembly to the right and remove it from the shaft 7 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 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 197 OK WT Service Guide OKIPAGE 18 18n Chapter
152. tacker Assy See 3 3 6 3 Unscrew 2 screws 1 release tabs at portion 1A Remove cable cover 2 guide film 3 Note Use care when replacing cable cover Do not pitch crimp or cut cables or protective sheet Copyright 1998 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 38 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 9 Damper 1 Remove the damper arm See 3 3 6 2 Unscrew 2 screws 1 and remove the two dampers 2 Copyright 1998 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 39 OKI Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 10 Feeder Unit Front 1 Open the manual feed assy 1 and release both right and left parts by pulling out the engagements on the lower part 2 Stand the manual feed assy 1 on end and unhook the engagements with both right and left manual feed hopper stays 3 Remove the OP panel assy See 3 3 4 4 Unscrew 5 screws 2 and remove the feeder unit front 3 2 Copyright 1998 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 40 OK WT
153. tains become Normal Each 20th page default Middle Each 10th page High Each 3rd page User maintenance mode menu system 4 Power ON LOD display USER MNT Press the Menu Key Press the MENU Enter kay RESET Press the Menu key Press the Enter key HEX DUMP y Press the Menukey Pressihe Enter key DRUM CNT gt RESET Press the Menu Key Press tha RSRC SAV J or pkey Cee d Press the Menu key Press tha REC BUFF dor Pkey Ae Fress the Menu key Press the OP MENU 3 or key ENABLE TEUER Press the Menu Key Press tha A ADJLST 3 or b key j rr i Press the Menu key MENU HESETNG ON LINE HE DRUM CNT HESETNG AUTO OFF 400KB SDOKB 1 8MB 2 aMB 3 8MB 4 5MB 5 4MB 8 1MB 10 0MB 12 1MB 14 4MB 15 3MB 18 6MB DISABLE After the end of processing ON LINE End of processing is performed by the power supply OFF After the end of processin TD p g ON LINE Writing inta the EEPROM is performed when the Enter key is pressed Writing into the EEPROM is performed when the Enter key is pressed 0 25 mm intervals Y ADJUST Jor Prey 0 mir a Press the Menu key Press tha DUP ADJ Jor Pkey e 2ND TRAY lor Pkey HI dm 3ND TRAY FRONT PLACE PG lor Prey E a SETTING Jor Pkey g 1 Hm Press tha Manu kay CLN CYCL Jor Prey ajii Press tha Menu
154. ted properly Yes Replace the SOLENOID Assy YES END No Replace the Board LEX Mo Connect the connection cord properly Mo Connect the connection cord properly Mo Replace the square shaped connector Connector IMSA 9714N 144 Duplex FEED JAM1 Is there a paper on the Duplex In sensor lever Mo Is the Duplex In sensor operating normally Yes Is the connection cord between the Duplex In sensor and the Board LEX connected properly Yes Does the connection cord have a break Yes Replace the connection cord Connection Code Wire Mo Replace the Duplex In sensor FX50 Photo Sensor YES END Mo Replace the Board LEX Mo Connect the connection cord properly Mo Replace the Duplex In sensor lever LEVER Sensor D IN and SPRING Sensor D IN YES Remove the paper Duplex FEED JAM2 Mo Is the connection cord between the clutch and the Board LEA connected properly Yes Replace the GEAR Assy YES END Mo Replace the Board LEX Mo Has a paper reached the Duplex Hear sensor Connect the connection cord properly Yes ls the Duplex Rear sensor operating normally Yes Replace the Board LEX No Replace the Duplex Rear sensor lever LEVER Sensor F R and SPRING Sensor F R Duplex FEED JAM3 Has a paper reached the Duplex Front sensor Mo lsthe connection cord between the clutch and the Board LEX properly Yes Replace the GEAR Assy YES END No Replace the Board LEX No Connect
155. ter 2 Operation Description 2 3 2 Electro Photographic process The electro photographic processing is outlined below Figure 2 5 shows the electro photographic printing process 1 Charging The surface of the image drum is uniformly charged with negative charges by applying a negative voltage to the charge roller 2 Exposure Light emitted from the LED head irradiates the negatively charged surface of the image drum The surface potential of the irradiated part of the image drum surface is lowered so that an electrostatic latent image associated with the print image is formed 3 Developing and toner recovery When the negatively charged toner is brought into contact with the image drum it is attracted 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 electricity 4 Transfer When paper is placed over the image drum surface and a positive charge opposite in polarity to the toner is applied to the reverse side of the paper from the transfer roller the toner is attracted by the positive charge and is transferred to the paper As a result the toner image formed on the image drum is transferred to the paper 5 Temporary cleaning Residual toner that remains on the image drum without being transferred is made uniform by the cleaning roller and is temporarily attracted to the cleaning roller by static electri
156. terial http bpx okidata com Page 54 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 25 Paper sensor lever 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the frame main See 3 3 12 7 3 Squeeze the clamp part of the paper sensor lever 1 and remove the paper sensor lever 1 by pushing it uoward from the lower side Copyright 1998 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 55 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 26 Inlet sensor lever 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the frame main See 3 3 12 7 3 Squeeze the clamp part of two inlet sensor levers 1 Remove the inlet sensor levers 1 by pushing them downward Copyright 1998 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 56 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 27 Power supply unit 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the frame main See 3 3 12 7 3 Unscrew 2 screws 1 and remove the BRACKET AC 2 4 Unscrew 10 screws 3 and remove the connector 6 re
157. the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 42 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 13 Guide Assy Eject 1 Remove the lever back up release See 3 3 12 8 But the roller transfer feeder unit front plate FG do not have to be removed 2 Loosen 2 screws 1 unlock both side latches and remove the cover rear 2 See 3 3 6 5 3 Unlock the latches on both sides of the guide assy eject 3 and lift it out Z TA 4 NS D i ud Y NA 2 i ra a Aan a Y T E J Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http opx okidata com Page 43 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 14 Heat Assy 1 Remove the cover assy side L See 3 3 2 1 2 Unplug the connectors 1 2 3 Unscrew 4 screws 3 and remove the heat assy 4 in the direction of the arrow by lifting the right side first Note e As the heat assy 4 remains at high temperature soon after the power is turned off start the work after it cools off sufficiently e Carry out a reset of the counter after the replacement See Section 4 2 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner E
158. the transfer roller contact with the Power Supply Unit High Voltage and Shaft of tha transfer roller properly Yes Are the contact of the developing roller and the contact of the toner supply roller of the image drum cartridge contacted with the contact assembly properly See Figure 6 5 A and Mo Adjust the contacts of the developing and toner supply roller to contact the contact assembly properly Yes Replace the transfer roller See 3 3 36 Has the trouble been removed YES END Mo Replace the image drum cartridge Has the trouble been removed YES END Note After replacing the image drum cartridge set the printer in the user maintenance mode by turning the power on while pressing the MENU key and reset the drum counter Refer to Users Manual Mo Replace the Main board or Power Supply Unit High Voltage Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 98 OKI Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 2 Dark background density Has the image drum been exposed to external light Yes Mount the image drum in the printer and wait for about 30 minutes No Is the heat roller of the fusing unit dirty Yes Clean the heat roller No Is the contact of the cleaning roller of the image drum cartridge contacted with e contact assembly properl
159. tner Exchange BPX for any updates to this material http bpx okidata com Page 11 OK WT Service Guide OKIPAGE 18 18n Chapter 2 Operation Description 2 1 Main Control Board BOARD FFF The main control board consists of a one chip CPU LSI program font ROM s DRAM s EEPROM host interface circuit and a mechanism driving circuit 1 One chip CPU The one chip CPU is a custom CPU 32 bit internal bus 32 bit external bus 120 MHz clock that incorporates an RISC CPU and its peripheral devices and has the following functions Built in Device Chip select controller Control peripheral LSI ROM DRAM and I O device Bus controller DRAM controller DMA controller Transfer of data Host I F to RAM Serial interface controller Control of RS232C serial interface Parallel interface controller Control of Centronics parallel interface Serial I O port Inputting of various signals Outputting of various control signals Timer Generates various control timings for monitoring paper feeding and a paper size I O port Inputs and outputs the sensor signals and motor signals etc Also performs I O for EEPROM Motor driver controller Control of Main Motor Image processing circuit Executes the image data process for printing 2 Program font ROM s e PCL ROM The program font ROM s store the HP LJ5 emulation program and various types of font MASK ROM is used as the program font ROM s e PS ROM The program font ROM s
160. tor is always driven in direction c CCW on printing After the paper is fed approx 30mm from the tray the Clutch Feed drives the Align Roller to advance the paper until the Inlet Sensor turns on 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 Registration Roller and the Pressure Roller to align the skew of the paper 3 During the paper fed from the 1st tray the built in clutch of Gear C is idled and does not drive the Front Hopping Roller 4 Feeding After aligning the paper the Hopping Motor is turned off and stops hopping Also the Clutch Feed is turned off and the Align Roller idles freely Then the Clutch Registration is turned on and the Registration Roller starts to feed the paper After the paper is fed the 1st Hopping Roller idles freely by releasing built in one way clutch also the Sub Roller idles freely by escaping the Planet Gear 5 Printing starts after the paper turns off the Write Sensor Pressure Roller Hegistration Roller E Inlet Sensor Clutch Registration cre Write Sensor LAN Ouch Feed x A d Gear D Main Motor Align Roller b Hopping from the Front Feeder 1 Hopping The Front Feeder Plate is normally locked at the lower position by the Release Lever activating the Micro Switch The top of the FF Cam which is attached to the end of the Front Hopping Shaft is normally located in the upper
161. us min DATA STROBE 0 5 us min e 0 5 us max pi BUSY min w min ACKNOWLEDGE 0 5 us to 10 us min b On line gt off line switching timing by ON LINE SW ON LINE SW SELECT c Off line gt on line switching by ON LINE SW ON LINE SW SELECT om ACKNOWLEDGE a 100 ms max 0 5 ps t 10 us d INPUT PRIME timing when set to the effective INPUT PRIME signal 50 us min INPUT PRIME MEER gt SELECT 5us max 0 min ACKNOWLEDGE 40 ps max 0 5 us to 10 e Nibble Mode Conforms to IEEE 1284 spec ECP Mode Conforms to IEEE 1284 spec Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 121 OK WT Service Guide OKIPAGE 18 18n Chapter B RS 232C Serial Interface RS 232C Serial Interface 1 Connector Printer side 25 receptacle Type 17LE 13250 27 D4CC made by DDK or equivalent Cable side 25 pin plug Type 17JE 23250 02 D8C made by DDK 2 Cable e Cable length 6 feet 1 8 m max Cable shall be shielded Note Cable is not provided 3 Interface signal Signal Name Signal Compatible Direction 1 FrameGround FG Frame ground _ 2 Transmitted Data TD PH jTransmitted data Received Data PD ss PR Heseiveddata 4 JjRequstToSe
162. use any glove which may generate static electricity 8 Do not place the printed circuit boards directly on the equipment or floor Service Tools Table 3 1 shows the tools required for the replacement of printed circuit boards and units in the field Table 3 1 Service Tools service Tools Connector remover OKI P N 4PP4076 5395P1 Copyright 1998 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 188 Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 3 2 Parts Layout This section describes the layout of the main components Hopping cover Hopping motor Upper cover Ey L 9 Control board AOLE PCB ze M onn lever Separator Copyright 1998 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 189 OK WT Service Guide OKIPAGE 18 18n Chapter E Multi Purpose Feeder Maintenance 3 3 Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassembly order diagram below Multi Feeder Separator 3 3 1 AOLE PCB 3 3 2 Square shaped connector 3 3 3 Hopping motor 3 3 4 Planet gear 3 3 5 Roller B 3 3 6 Roller A 3 3 7 Mini pitch
163. ve the Ac cable in the following procedure i Turn off o the power switch of the printer ii Disconnect the AC inlet plug of the AC cable from the AC receptacle iii Disconnect the AC cable and interface cable from the printer b Reconnect the printer in the following procedures i Connect the AC cable and interface cable to the printer ii Connect the AC inlet plug to the AC receptacle ii Turn on I the power switch of the printer Disconnect Connect 2 Do not try disassembly as long as the printer is operating normally 3 Do not remove unnecessary parts try to keep disassembly to a minimum 4 Use specified service tools 5 When disassembling follow the determined sequence Otherwise parts may be damaged 6 Since screws collars and other small parts are likely to be lost they should temporarily be attached to the original positions 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 Maintenance Tools Table 3 1 lists the maintenance tools necessary for parts replacement Poem T No 1 100 Philips enone 2 5 mm screws screwdriver No 2 200 Philips 3 5 mm screws screwdriver Magnetized Digital multimeter LED Head cleaner Cleans LED head P N 4PB4083 2248P 1 Connector remover Disconnect connector P N
164. when replacing a part fine tune troubleshoot and diagnose Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 61 OK WT Service Guide OKIPAGE 18 18n Chapter 4 Adjustment 4 1 Maintenance Modes and Functions e User maintenance mode To enter the user maintenance mode turn on the POWER switch while pressing the MENU key Function There are 13 functions as follows Menu reset Y adjust Hex dump Duplex Adjust Drum counter reset Select paper source command parameter Resource Save Second Third Front Tray Receive Buffer Size Page placement Operator panel menu disable Setting X adjust Cleaning cycle e System maintenance mode Note This mode is used only by service personnel and should not be released to the end user To enter the system maintenance mode turn on the POWER switch while pressing the RECOVER key Function There are 8 functions as follows Page count display Page count printing enable disable Rolling ASCII continuos printing RS232C LOOP TEST EEPROM reset HSP ERROR recovery HSP ERROR count display HSP ERROR count reset SIDM enable disable e Engine maintenance mode Note This mode is used only by service personnel and should not be released to the end user To enter the engine maintenance mode turn on the POWER switch while pressing the FORM F
165. xchange BPX for any updates to this material http bpx okidata com Page 44 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 15 Roller feed C 1 Remove the guide assy eject See 3 3 13 But roller transfer feeder unit front plate FG F do not have to be removed 2 Remove the gear roller C 1 and bushing 2 bend a part of the plate FG BK 3 Take off the carrier bearing 4 and remove the roller feed c 5 in the direction of the arrow Note Be careful not to deform a part of the plate FG BK 3 Copyright 1998 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 45 OK WT Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 16 Roller Assy BK 1 Remove the heat Assy See 3 3 14 2 Remove the lever back up release See 3 3 12 8 3 Unlock the engagement with the plate FG BK 1 and lift out the roller heat assy 2 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 46 Service Guide OKIPAGE 18 18n Chapter 3 Parts Replacement 3 3 17 Roller Assy Feed 1 Remove the feeder unit front See 3 3 10 2 Remove the roller assy feed 1 by unlocking a latch Copyright 1998
166. y See Figure 6 5 C No Adjust the contact of the cleaning roller to contact the contact assembly prop erly Yes Replace the image drum cartridge Has the trouble been removed YES END Note After replacing the image drum cartridge set the printer in the user maintenance mode by turning the power on while pressing tha MENU key and reset the drum counter Refer to User s Manual Mo Replace the Main board or Power Supply Unit High Voltage Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 99 OKI Service Guide OKIPAGE 18 18n Chapter 6 Troubleshooting Procedures 3 Black paper is output ls the LED head connected properly Check connector HEAD1 14P HEAD 12p on the Main board and PC connector on the LED head No Connect the LED head properly or replace the head cable Yes Is the contact of the image drum cartridge contacted with the ground contact properly See Figure 6 5 D Mo Check the ground contact of the image drum cartridge Yes Check the connectors HEAD1 14P and HEAD2 12P No Replace the LED head Yes Heplace the connector Has the trouble been removed YES END Note After replacing the LED head set the printer in the engine mainte nance mode by tuming the power on while pressing the FORM FEED and ENTER keys Set the LED head drive time Refer

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