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Oki OKIPAGE 4M Maintenance Manual Download Page 33

2 - 20

OFF

Reverse

rotation

OFF

ON

Pulse motor
(main)

Electromagnetic
clutch

OFF

ON

Manual feed
sensor

OFF

ON

Paper sensor

OFF

ON

Operation mode

Warm-up

Paper feed

Printing

Outlet sensor

Normal

rotation

Timing Chart for Paper Feed (Tray Feed)

Summary of Contents for OKIPAGE 4M

Page 1: ...All specifications are subject to change without notice OKIPAGE 4 4 LED Page Printer Maintenance Manual OEL INT Approval 40245101TH...

Page 2: ...HP LaserJet and PCL5e are trademarks of Hewlett Packard Co...

Page 3: ...al describes the field maintenance methods for LED Page Printers This manual is written for use by service persons Please note that you should refer to the Printer Handbook for the handling and operat...

Page 4: ...8 Cover Open 2 22 3 PARTS REPLACEMENT 3 1 3 1 Precautions for Parts Replacement 3 1 3 2 Parts Layout 3 3 3 3 Replacing Parts 3 6 3 3 1 Hopper Plate 3 6 3 3 2 LED Head and Head Spring 3 7 3 3 3 Transf...

Page 5: ...ps 6 1 6 2 Check Points Before Correcting Image Problems 6 1 6 3 Notes When Correcting Image Problems 6 1 6 4 Preparation Before Troubleshooting 6 1 6 5 Troubleshooting 6 2 6 5 1 Status Monitor Messag...

Page 6: ...1 CONFIGURATION...

Page 7: ...e High Voltage Power Supply Board Power Supply Unit Main Control Board 2MB Memory Expansion Board Option OKIPAGE 4m Only Figure 1 1 1 CONFIGURATION 1 1 System Configuration The OKIPAGE 4w Plus 4m cons...

Page 8: ...High Voltage Power Supply Board 1 2 Printer Configuration The printer unit consists of the following five hardware components Electro Photographic Processor Paper Feeder Main Control Board High Voltag...

Page 9: ...1 3 1 3 Option 1 2MB HBRB PCB Option Memory Board Only OKIpage 4m...

Page 10: ...8 5 215 9 mm Thickness Automatic feed 16 to 28 lbs 60 to 90 g m2 Manual feed Label Envelope OHP paper trans parency 6 Printing speed First print 23 seconds A4 after warm up Continuous print 4 sheets m...

Page 11: ...e humidity No condensation is permissible Humidity Caution Temperature and humidity in storage are measured with the OKIPAGE 4w plus 4m being packed they are valid for one year 13 Noise During operati...

Page 12: ...Certification Label The safety certification label is affixed to the following location of the OKIPAGE 4w 1 5 2 Warning Label Warning labels are affixed to the locations that may cause bodily injury...

Page 13: ...2 OPERATION DESCRIPTION...

Page 14: ...d sequentially stores it in memory The OKIPAGE 4w Plus 4m decodes and edits the received data while storing print data from the interface in memory It sequentially transfers the edited data to the LED...

Page 15: ...llel I F LED head Main motor Electromagnetic clutch LS07 Driver Main motor Electromagnetic clutch LED head Driver Driver AC output ON OFF Switching power supply Power Supply Unit Main Control Board Hi...

Page 16: ...rallel I F Parallel I F LED head Main motor Electromagnetic clutch LS07 Driver Main motor Electromagnetic clutch LED head Driver Driver AC output ON OFF Switching power supply Power Supply Unit Main C...

Page 17: ...echanism driving circuit The mechanism driving circuit consists of a LED head a main motor and an electromagnetic clutch 1 One chip CPU The one chip CPU is a custom CPU 8 bit internal bus 8 bit extern...

Page 18: ...ed to a transfer roller 2 2 Power Supply Unit The power supply unit supplies 5 V and 24 V to the main control board according to 230 VAC 120 VAC The power supply unit also contains a heater drive circ...

Page 19: ...sensor Toner sensor ON Paper exists OFF No paper exists ON Paper exists OFF No paper exists ON long Toner low OFF short Toner High Exit roller Outlet sensor Heat roller Transfer roller Feed roller Ton...

Page 20: ...wing of the electro photographic processor 1 Image drum unit The image drum unit makes a toner adhere to the formed electrostatic latent image with static electricity This electrostatic latent image i...

Page 21: ...OFF ON 26 50 Outlet sensor Cleaning roller 9 000 Charge roller 9 000 6 77 LED head Drum roller 16 000 Developing roller 14 000 17 23 12 72 23 18 20 32 64 60 Single tray Transfer roller 15 000 Hopping...

Page 22: ...gear hopping roller is shown in the table below and on the subsequent pages 4 LED head The shift and latch registers receive image data from the main control board for each dot line 2 560 or 2 496 LE...

Page 23: ...motor Main 1 Motor to be driven by normal rotation of pulse motor main Roller control by pulse motor main 1 Normal rotation of pulse motor main Drum roller transfer roller cleaning roller CH roller d...

Page 24: ...esion causes the electrostatic latent image to change to a visible image At the same time the residual toner on the OPC drum is attracted to the developing rollerby static electricity 4 Transfer When...

Page 25: ...er supply Charge roller Power supply Transfer roller Cleaning roller Paper eject roller Outlet sensor Power supply Feed roller Hopping roller Heat roller Back up roller Power supply Developing roller...

Page 26: ...s ON When the clutch is on the hopping gear engages with the clutch plate to rotate the hopping roller When the clutch is off the hopping gear is separated from the clutch plate by the spring for rese...

Page 27: ...rotate The triple gear and transfer gear rotate via the idle gear to drive the EP unit At printing 2 Printing and warm up At warm up The paper is further advanced in synchronization to the print data...

Page 28: ...PC drum LED head LED head Paper OPC drum 4 Exposure Light emitted from the LED head irradiates the negatively charged surface of the OPC drum The surface potential of the irradiated surface attenuates...

Page 29: ...t between the OPC drum and developing roller This causes the electrostatic latent image to be changed to a visible image 5 Development The electrostatic latent image on the surface of the OPC drum is...

Page 30: ...ansfer roller When a high negative voltage is applied from the power supply to the transfer roller the positive charge induced on the surface of the transfer roller moves to the paper side at the cont...

Page 31: ...A thermostat is also installed for safety If temperature rises abnormally this thermostat opens to suspend voltage supply to the heater The back up roller is pressurized to the heat roller by the pres...

Page 32: ...r it has passed the paper sensor Paper outlet jam The trailing part of the paper does not pass the outlet sensor within L mm after the leading part of the paper has passed the outlet sensor 2 52 64 mm...

Page 33: ...otation OFF ON Pulse motor main Electromagnetic clutch OFF ON Manual feed sensor OFF ON Paper sensor OFF ON Operation mode Warm up Paper feed Printing Outlet sensor Normal rotation Timing Chart for Pa...

Page 34: ...nues twice Toner Low is released This state is monitored at a cycle of 40 milliseconds c When the toner sensor does not change over two cycles T x 2 the toner sensor alarm state occurs d After the EP...

Page 35: ...board to suspend 5 V supply to the high voltage power supply This results in the stop of all high voltage outputs At the same time the CVOPN signal is issued to notify the main control board of the s...

Page 36: ...3 PARTS REPLACEMENT...

Page 37: ...reconnect the printer in the following procedures i Connect the AC cord and interface cable to the printer ii Connect the AC inlet plug to the AC receptacle iii Turn on the POWER switch of the printer...

Page 38: ...crewdriver Q ty Use Remarks Maintenance Tools 1 2 3 4 5 6 7 No 2 100 Philips screwdriver No 3 100 Philips screwdriver No 5 200 screwdriver Digital multimeter tester Pliers Handy cleaner 1 1 1 1 1 1 1...

Page 39: ...3 3 3 2 Parts Layout This section explains the layout of main parts Upper Cover Assy Upper cover Guide slide L Spur gear A Guide slide R Hopper plate Figure 3 1...

Page 40: ...t Pressure roller B Back up roller Head spring Top cover assy Paper guide L Paper guide R Hopper spring Slide plate M Hopping roller Roller holder Magnet H hopping shaft Hopping shaft assy Stopper spr...

Page 41: ...3 5 Base Plate Unit Figure 3 3 Power supply unit Main control board Base plate assy...

Page 42: ...3 6 3 3 Replacing Parts This section explains how to replace parts and assemblies 3 3 1 Hopper Plate 1 Remove two claws and dismount hopper plate 1 1...

Page 43: ...3 7 3 3 2 LED Head and Head Spring 1 Open top cover assy 1 2 Dismount the left clamp and LED head 2 Then dismount flat cable assy 3 3 Dismount two head springs 4 2 3 4 4 1...

Page 44: ...3 8 3 3 3 Transfer Roller 1 Open top cover assy 1 and dismount EP unit 2 2 Remove the right claw Then dismount transfer roller 3 two resist bearings 4 and gear T5 Label 1 4 3 4 2 5...

Page 45: ...Open top cover assy 2 and dismount EP unit 3 4 Move paper guide L 4 and paper guide R 5 on the rear of the printer to the center 5 Remove two front claws of upper cover assy 6 and two rear screws A a...

Page 46: ...l the cables 3 from high voltage power supply board 2 and dismount high voltage power supply board 2 Caution Note the following when assembling the high voltage power supply board Mount the high volta...

Page 47: ...assy See Section 3 3 4 2 Dismount the LED head See Section 3 3 2 3 Press the left clamp outward and dismount the engagement and top cover assy 1 Tension spring 2 also comes off at the same time 4 Dis...

Page 48: ...unt the upper cover assy See Section 3 3 4 2 Dismount paper holder 1 3 Unlock and dismount paper guide L 2 and paper guide R 3 4 Remove the claw and dismount hopper spring 4 5 Remove the claw and dism...

Page 49: ...e assy stand so that side plate M will face upward 1 Dismount the upper cover assy See Section 3 3 4 2 Remove two screws 1 and two claws then dismount plate side M2 3 Dismount earth plate 3 two idle g...

Page 50: ...eat separator D 5 Remove screw 4 and dismount terminal plate 6 Handle heat assy 3 carefully because Halogen lamp 7 comes off 6 Turn left and right heat bearings 8 in the arrow direction to unlock Then...

Page 51: ...3 15 1 1 3 2...

Page 52: ...3 16 7 9 B Voltage display side 8 C 8 5 A 0 6 4...

Page 53: ...r assy See Section 3 3 4 2 Dismount top cover assy See Section 3 3 6 3 Remove two screws 1 from heat assy Section 3 3 9 lift the heat assy and dismount idle gear E A 2 and idle gear E B 3 4 Unlock and...

Page 54: ...ee Section 3 3 4 2 Dismount the high voltage power supply board See Section 3 3 5 3 Dismount the heat assy See Section 3 3 9 4 Dismount the engagement with the left ground then pressure roller B1 Two...

Page 55: ...e the inlet claw from base frame 8 and dismount inlet 2 5 Disconnect three cables 4 and connector A and dismount base frame 3 Then remove screw 0 and disconnect FG cable B Disconnecting connector A Di...

Page 56: ...3 20 Dismounting Inlet Disconnecting Connector Screw driver Clamp lever Screw driver 3 1 1 6 7 8 9 4 1 4 B 0 2 A 1 5...

Page 57: ...upper cover assy See Section 3 3 4 2 Dismount the high voltage power supply board See Section 3 3 5 3 Dismount side plate M See Section 3 3 8 4 Dismount the base frame See Section 3 3 12 5 Remove two...

Page 58: ...4 Dismount the paper holder assy See Section 3 3 7 5 Dismount the sheet guide See Section 3 3 12 6 Dismount side plate M See Section 3 3 8 7 Raise up roller holder 3 slide hopping shaft assy 1 and dis...

Page 59: ...unt the upper cover assy See Section 3 3 4 2 Dismount Idle gear R 3 and Gear R 4 3 Move resist roller 1 to the right and dismount it by lifting Two resist bearings 2 also come off at the same time Tak...

Page 60: ...pply board See Section 3 3 5 3 Dismount the base frame See Section 3 3 12 4 Dismount the paper holder assy See Section 3 3 7 5 Dismount the sheet guide See Section 3 3 12 6 Dismount the heat assy See...

Page 61: ...Section 3 3 4 2 Dismount the base frame See Section 3 3 12 3 Remove two screws 1 disconnect connector 2 and dismount power supply unit 3 4 Dismount insulation sheet 4 5 Remove two screws 5 and dismoun...

Page 62: ...4 ADJUSTMENT...

Page 63: ...cannot be made public for printer end users 4 1 Adjustment Types and Functions 4 1 1 Printer Driver For Microsoft Windows This printer driver has the following functions Drum counter reset Charge roll...

Page 64: ...life of the drum counter when the EP unit is replaced Clicking the Reset button resets the life 2 Charge roller cleaning This function cleans the charge roller of the EP unit it is used when printing...

Page 65: ...d drive time Set the LED head dot count Main control board Upload or download EEPROM data 4 2 1 Setting LED Head Drive Time Caution When the liminous intensity of a new LED head is the same as that of...

Page 66: ...f LED head dot count Use the following label to identify these types Use LED Head Width in the engine menu table to set the LED head dot count See Figure 4 2 Identifying the types of LED head dot coun...

Page 67: ...Upload button Upload EEPROM Data in EEPROM Operations EEPROM data read is completed 4 The read EEPROM data is displayed in Dialog of the maintenance driver 5 Leave the display of the maintenance drive...

Page 68: ...5 PERIODICAL MAINTENANCE...

Page 69: ...the drum counter when replacing the EP unit 5 2 Cleaning Remove any toner or dirt and clean the circumference and inside of the printer with a waste cloth Caution Do not touch the OPC drum LED lens ar...

Page 70: ...LED lens array 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 clea...

Page 71: ...6 TROUBLESHOOTING PROCEDURES...

Page 72: ...e OPC drum to direct sunlight 3 Do not touch the fuser because it heats up during operation 4 Do not expose the image drum to light for more than five minutes at room temperature 6 4 Preparation Befor...

Page 73: ...hooting flow See Section 6 5 2 Troubleshoot according to Section 6 5 3 Troubleshoot according to Status Monitor Message List See Section 6 5 1 6 5 Troubleshooting If a trouble occurs in the OKIPAGE 4w...

Page 74: ...M 9 Normal status 18 00 00 10 00 20 10 00 10 01 10 02 12 20 14 20 14 30 16 01 16 02 16 03 16 04 16 18 16 19 16 1A 16 21 16 50 16 51 16 5A 16 5B 16 7F Normal operation Normal operation Normal operation...

Page 75: ...en remove the jammed paper To release the error display close the cover If this error occurs fre quently see Section 6 5 2 2 2 Open the cover then remove the jammed paper To release the error display...

Page 76: ...ng the main control board also adjust EEPROM data See Section 4 2 4 Check the connection of the Option RAM PC board If the option RAM PC board is faulty replace it See Section 6 5 2 4 Replace the ther...

Page 77: ...leshooting flowcharts Caution When replacing the main control board troubleshooted according to the troubleshoot ing flowcharts also adjust EEPROM data See Section 4 2 4 1 2 Item The OKIPAGE 4w Plus 4...

Page 78: ...Are the CN1 connectors of the high voltage power supply board and main control board connected correctly No Connect the CN1 connectors correctly Yes Is 5 V supplied between CN2 Pin 2 and CN2 Pin 3 of...

Page 79: ...eed Yes Check the gear block or replace high voltage power supply board No Is the paper already fed to paper sensor E paper Yes Is paper sensor E paper operating normally No Replace paper sensor E pap...

Page 80: ...6 9 Yes Measure the resistance of the pulse motor main Is the resistance normal about 12 6 No Replace the pulse motor main Yes Replace the main control board...

Page 81: ...Is the EP unit set correctly No Set the EP unit correctly Yes Check the gear block Yes Has the paper arrived at the paper sensor exit Yes Is the paper sensor exit operating normally No Replace the pap...

Page 82: ...on the high voltage power supply board Yes Is the paper sensor exit operating normally No Replace the paper sensor exit or clean the outlet sensor on the high voltage power supply board Yes Replace th...

Page 83: ...No Is the Halogen lamp or thermostat disconnected Yes Replace the heat assy Halogen lamp or thermostat No Replace the power supply unit Yes Are the CN2 connectors of the power supply unit and main co...

Page 84: ...image problem is output as a result of the printing Figure 6 3 is an example of image problem output Symptom An image is light or blurred entirely Figure 6 3 A Flowchart No 1 2 3 4 5 6 7 8 Dark backg...

Page 85: ...the contact plate of the transfer roller in correct contact with the high voltage power supply board See Figure 6 4 F Yes Is the terminal of the EP unit in correct contact with the contact plate See F...

Page 86: ...acing the EP unit reset the drum counter Refer to Replacing the Drum Cartridge in User s Manual No Replace the main control board or high voltage power supply board 3 A blank paper is output Is the LE...

Page 87: ...or high voltage power supply board 5 Cyclic defect EP drum Cycle 1 98 50 3 mm Remedy Clean or replace the EP unit Developing roller 1 44 36 6 mm Replace the EP unit Toner supply roller 2 63 66 8 mm R...

Page 88: ...gure 6 5 A B C D E No Contact the terminal of the EP unit correctly Yes Replace the EP unit Has this error been recovered Yes End Caution After replacing the EP unit reset he drum counter Refer to Rpl...

Page 89: ...l Tension 2 5 kg No Replace the bias spring Yes Are the heater connector of the heat assy and the CN1 connector of the power supply unit connected correctly No Connect the connectors correctly Yes Rep...

Page 90: ...ecovered Yes End No Is the LED head installed correctly Check the CN6 connector of the main control board No Install the LED head correctly Yes Replace the LED head Has this error been recovered Yes E...

Page 91: ...6 20 Figure 6 4 Contents A Toner Supply Roller B Developing Roller C Charge Roller D Cleaning Roller E Transfer Roller F Heat Roller...

Page 92: ...6 21 Figure 6 5 Contents A Toner Supply Roller B Developing Roller C Charge Roller D Cleaning Roller E Ground Drum E...

Page 93: ...7 WIRING DIAGRAM...

Page 94: ...4 N 14 FG CN1 High Voltage Sensor Interface CN2 Power Interface CN003 DC Output 2 1 22 23 1 2 22 23 CN1 Control Interface 1 23 CV0PN N 2 22 LED P 3 21 TNRSNS N 4 20 SDB2 P 5 19 PSIN N 6 18 SDBI P 7 17...

Page 95: ...14 FG CN1 High Voltage Sensor Interface CN2 Power Interface CN003 DC Output 2 1 22 23 1 2 22 23 CN1 Control Interface 1 23 CV0PN N 2 22 LED P 3 21 TNRSNS N 4 20 SDB2 P 5 19 PSIN N 6 18 SDBI P 7 17 5V...

Page 96: ...ol Board HBMC 2 PCB OKIPAGE 4w Plus Short Plug SP1 Plug Setting A External EPROM is valid Mask ROM in the CPU is valid B Content Remarks For a Chinese product and all maintenance parts For all product...

Page 97: ...t Plag SP1 Plag Setting A External EPROM is valid Mask ROM in the CPU is valid B Content DIP Switch Switch Setting Content SW1 1 SW1 2 UPPER SIDE UPPER SIDE LOWER SIDE LOWER SIDE AUTO I F FIX I F By S...

Page 98: ...7 5 7 2 3 High Voltage Power Supply Board...

Page 99: ...8 PARTS LIST...

Page 100: ...8 1 8 PARTS LIST Figure 8 1 Cover Assy Upper 6 5 4 1 2 3 1...

Page 101: ...4128 1251P1 1 2 Lamp 3PP4128 1255P1 1 3 Guide Slide L 2PP4128 1256P1 1 4 Guide Slide R 2PP4128 1257P1 1 5 Spur Gear A 4PP4128 1260P1 1 6 Hopper Plate 40249301 1 Table 8 1 Cover Assy Upper No Part Name...

Page 102: ...8 3 Figure 8 2 Base Frame Unit e c X d f d T T g T U Z k Z Y b l V T R S Q P a O N E 8 o 7 5 4 D 3 i C B A 3 M L I G 0 6 9 H F J K 1 2 L W...

Page 103: ...ping Shaft 3PB4083 1127P1 1 14 Hopping Shaft Assy 3PA4083 1133G1 1 15 Knock Pin NK2 10 SUS 1 16 Idle Gear R 4PP4083 1143P1 1 17 Idle Gear 2R 3PP4083 1184P1 1 18 Gear R 3PP4083 1142P1 1 19 Idle Gear M...

Page 104: ...A TAIWAN Top Cover Assy 40271104 1 For KOREA OKIPAGE 4W plus Top Cover Assy 40271106 1 For OEL OKIPAGE 4m 44 Head Spring 4PP4083 6168P1 2 45 LED Head 4YA4116 1228G1 1 46 Flat Cable Assy 4YX4083 1134G1...

Page 105: ...8 6 1 3 4 2 5 Figure 8 3 Heat Assy...

Page 106: ...Q ty Remarks Table 8 3 Heat Assy 1 Heat Roller 3PB4083 1202P1 1 2 Halogen Lamp 3PB4083 6103P4 1 120V Halogen Lamp 3PB4083 6103P5 1 230V 3 Thermostat 4PB4083 1204P1 1 4 Thermistor 4PB4083 1205P1 1 5 He...

Page 107: ...8 8 Figure 8 4 Base Plate Unit 7 7 7 7 3 4 2 6 1 8 9...

Page 108: ...OP4m HBMC 3 PCB With Mask ROM 5 6 Program ROM 4YR4077 1670G1 1 OP4w Plus EPROM Program ROM 40406201 1 OP4w Plus EPROM Program ROM 8170649M0002 1 OP4m MaskROM 7 AC Cord 3YS4011 1315P1 1 USA TAIWAN AC...

Page 109: ...APPENDIX...

Page 110: ...LOCAL PRINTING 1 The following operation enables the OKIPAGE 4w Plus 4m to print data by itselt Operation With the cover open turn on the AC switch and then close the cover The following print patter...

Page 111: ...6 pin receptacle Type 57RE 40360 730B D29A Daiichi Denshi or equivalent Cable side 36 pin plug Type 57 30360 Daiichi Denshi or equivalent 2 Cable Cable length 6 feet 1 8 m max A Shielded cable compose...

Page 112: ...T PRIME FAULT 0V SELIN PR PR PR PR PR PR PR PR PR PR PR Parallel data sampling strobe Printer parallel input output data Completion of input data reception The OKIPAGE 4w is not ready to receive data...

Page 113: ...5V 3 3K 6 Timing charts a Data receiving timing compatible mode PARALLEL DATA DATA BITs 1 to 8 DATA STROBE ACKNOWLEDGE BUSY 0 5 s min 0 5 s min 0 5 s min 0 5 s max 0 5 s min 0 min 0 min 0 min 0 5 s to...

Page 114: ...B 4 c Data sending timing nibble mode ACKNOWLEDGE BUSY 6 7 4 5 2 3 DATA bit 3 DATA bit 7 FAULT 6 7 4 5 2 3 DATA bit 0 DATA bit 4 SELECT DATA bit 1 DATA bit 5 PAPER END DATA bit 2 DATA bit 6...

Page 115: ...ade by Apple 3 Interface signal Pin No 1 2 3 4 5 6 7 8 Signal Name XCLOCK Transmit data minus Signal ground Receive data minus Transmit data plus Receive data plus Abbreviation XCLK TxD SG RxD TxD RxD...

Page 116: ...C 2 As viewed from the cable side 8 7 6 5 4 3 2 1 5 Connector Pin Arrangement...

Page 117: ...lize the printer maintenance functions For this reason only servicemen and maintenance personnel can use the maintenance utility This utility cannot be made public for printer end users 3 OUTLINE OF M...

Page 118: ...f the LED head is 300 1W one wire non adjustment type or 300 2W two wire adjustment type This printer however can use only one wire type Do not use D600W4 5 Setting or Humidity Used to adjust transfer...

Page 119: ...is used to check whether the printer can print data normally after the maintenance utility has terminated See Figure D 2 4 5 Option Option is used to execute the following functions See Figure D 3 1...

Page 120: ...ne maintenance utility version information Printer version information and memory size information Printer device ID information See figure D 4 4 7 Reload Reload is used to reload menu setting values...

Page 121: ...D 5 Engine Maintenance Driver GUI Figure D 1 Main Menu Dialog Figure D 2 Test Print Dialog...

Page 122: ...D 6 Figure D 3 Option Menu...

Page 123: ...D 7 Figure D 4 About Dialog...

Page 124: ...00000000TH Oki Data Corporation 4 11 22 Shibaura Minato ku Tokyo 108 Japan Tel 03 5445 6162 Fax 03 5445 6189...

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