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Brother HL-4040CN, Service Manual

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Brother HL-4040CN Service Manual Download Page 189

Confidential 

3-80

8.34  Waste Toner Near/Full Sensor ASSY 

(1)  Move the Positioning pin 1a as shown, and slide the Hooks to the direction of the arrow 1b, 

and then remove the Waste toner sensor holder from the Middle plate. 

 

Fig. 3-106 

(2)  Release the Hook to remove the Waste toner sensor cover from the Waste toner sensor 

holder. 

 

Fig. 3-107 

Waste toner sensor holder 

Positioning pin 

Hook 

Waste toner sensor cover 

Waste toner sensor holder 

Middle plate 

Hook 

Hook 

Hook 

Middle plate 

1a 

1b

1b

* Figure of the front view

 

<Front side> 

<Left side> 

Summary of Contents for HL-4040CN

Page 1: ...olor Laser Printer SERVICE MANUAL MODEL HL 4040CN 4050CDN 4070CDW Read this manual thoroughly before maintenance work Keep this manual in a convenient place for quick and easy reference at all times February 2007 SM PRN061 7 ...

Page 2: ...ual and the specifications of this product are subject to change without notice Brother reserves the right to make changes without notice in the specifications and materials contained herein and shall not be responsible for any damages including consequential caused by reliance on the materials presented including but not limited to typographical and other errors relating to the publication This p...

Page 3: ...nance parts CHAPTER 3 DISASSEMBLY AND ASSEMBLY Details of procedures for disassembling and assembling of the machine together with related notes The disassembly order flow provided enables you to see at a glance the quickest way to get to parts involved At the start of a disassembly job you can check the disassembly order flow that guides you through a shortcut to get to the object parts This chap...

Page 4: ...ENDIX 4 SCREW CATALOGUE APPENDIX 5 HOW TO MAKE THE DRUM UNIT REMOVE SHEET APPENDIX 6 REFERENCES Information in this manual is subject to change due to improvement or redesign of the product All relevant information in such cases will be supplied in service information bulletins Technical Information A thorough understanding of this machine based on information in this service manual and service in...

Page 5: ...on Paper 1 40 3 5 Wrinkles 1 40 4 IMAGE DEFECT TROUBLESHOOTING 1 41 4 1 Image Defect Examples 1 41 4 2 Diameter of Rollers 1 42 4 3 Troubleshooting Image Defect 1 42 5 SOFTWARE SETTING PROBLEMS 1 58 6 NETWORK PROBLEMS 1 59 7 OTHERS PROBLEMS 1 60 CHAPTER 2 PERIODICAL MAINTENANCE 2 1 1 CONSUMABLE PARTS 2 1 2 PERIODICAL REPLACEMENT PARTS 2 2 2 1 Periodical Replacement Parts 2 2 2 2 Procedures to Repl...

Page 6: ...SSY 3 34 8 10 Fuser Unit Toner Filter Frame ASSY 3 37 8 11 Back Cover Upper 3 39 8 12 Paper Eject ASSY DX SX 3 40 8 13 Back Cover ASSY 3 42 8 14 Paper Guide DX HV TR Top Cover 3 43 8 15 Transfer HVPS PCB Unit 3 44 8 16 Registration mark Sensor PCB ASSY 1 2 Density Sensor Registration Relay PCB ASSY Transfer HVPS PCB ASSY 3 45 8 17 Side Cover L ASSY 3 51 8 18 Side Plate LB 3 52 8 19 Drum Unit Fan O...

Page 7: ...Cover L ASSY 3 90 8 45 Wireless LAN PCB ASSY HL 4070CDW only 3 91 8 46 Laser Unit Hook Slope 3 93 8 47 Develop Drive Motor ASSY 3 95 8 48 Drum Drive ASSY Drum Phase Sensor PCB ASSY 1 2 3 100 8 49 Drive Frame Unit ASSY 3 104 8 50 Paper Feed Belt Cleaner Motor ASSY 3 105 8 51 Develop Release Sensor PCB ASSY 3 106 8 52 Develop Press Drive L ASSY 3 106 8 53 Front Cover Interlock Switch ASSY 3 109 8 54...

Page 8: ...lization Function code 01 91 5 3 1 4 2 Test Pattern Function code 09 5 4 1 4 3 Worker Switch WSW Setting and Printout 5 5 1 4 4 Operational Check of LCD Function code 12 5 7 1 4 5 Operational Check of Control Panel PCB Function code 13 5 8 1 4 6 ROM Version Check Function code 25 5 9 1 4 7 One Push Demo Setting Function code 28 5 10 1 4 8 Drum Unit Cleaning Function code 31 5 10 1 4 9 Operational ...

Page 9: ... When Turning the Machine On 5 28 2 2 Develop Roller Counter Reset Function 5 30 2 3 Printout of Printer Settings 5 31 2 4 How to Recover from Errors of the Fuser Unit 5 36 2 5 How to Clear and Delete the Password for Setting Lock 5 36 CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM 6 1 APPENDIX 1 WORKER SWITCH WSW App 1 1 APPENDIX 2 DELETION OF PERSONAL INFORMATION App 2 1 APPENDIX 3 SERIAL NUMBERING S...

Page 10: ...el shown below is attached in countries where it is needed This machine has a Class 3B laser diode which produces invisible laser radiation in the laser unit You should not open the laser unit under any circumstances Caution Use of controls or adjustments or performance of procedures other than those specified in this User s Guide may result in hazardous radiation exposure For Finland and Sweden L...

Page 11: ...EC and EN50419 European Union only This equipment is marked with the recycling symbol below It means that at the end of the life of the equipment you must dispose of it separately at an appropriate collection point and not place it in the normal domestic unsorted waste stream This will benefit the environment for all European Union only ...

Page 12: ...ence in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception ...

Page 13: ...al covers the laser beam cannot escape from the machine during any phase of user operation FDA Regulations 110 to 120 volt model only The U S Food and Drug Administration FDA has implemented regulations for laser products manufactured on and after August 2 1976 Compliance is mandatory for products marketed in the United States The following label on the back of the machine indicates compliance wit...

Page 14: ... ACHTUNG Im Falle von Störungen der Lasereinheit muß diese ersetzt werden Das Gehäuse der Lasereinheit darf nicht geöffnet werden da sonst Laserstrahlen austreten können Location of the laser beam window Additional Information When servicing the optical system of the machine be careful not to place a screwdriver or other reflective object in the path of the laser beam Be sure to take off any perso...

Page 15: ...sonal injury Electrical Hazard icons alert you to a possible electrical shock Hot Surface icons warn you not to touch machine parts that are hot Cautions specify procedures you must follow or avoid to prevent possible damage to the machine or other objects Note Notes tell you useful tips when servicing the machine Memo Memo tells you bits of knowledge to help understand the machine ...

Page 16: ...machine or replace parts make sure that you have turned off the power switch and unplugged the machine from the AC power outlet DO NOT handle the plug with wet hands Doing this might cause an electrical shock The fuser unit becomes extremely hot during operation Wait until it has cooled down sufficiently before replacing consumable items DO NOT remove or damage the caution label located on or arou...

Page 17: ...iquids get inside the machine immediately turn off the power switch and unplug the machine from the AC power outlet This machine is heavy and weighs approximately 64 2lb 29 1kg To prevent injuries when moving or lifting this machine make sure to use at least two people Be careful not to pinch your fingers when you set the machine back down Caution Lightning and power surges can damage this product...

Page 18: ... electric shock 2 When connecting or disconnecting cable connectors make sure that you hold the connector body and not the cables 3 Electronic devices are sensitive to static build up make sure that you touch a metal portion of the machine to discharge yourself before accessing the PCBs Handle PCBs with care when repairing them Verify again that the repaired portion works properly 1 2 Initial Chec...

Page 19: ...e electrical resistance of the photosensitive layer is increased making it impossible to obtain the correct contrast when printing Condensation on the charge unit may cause corona charge leakage Condensation on the plate and separation pad may cause paper feed problems If condensation has occurred leave the machine for at least 2 hours to allow it to reach room temperature If the drum unit is unpa...

Page 20: ...er box 1 19 2C Toner sensor PCB failure K 1 13 60 Toner cartridge C is at the end of life 1 20 2D Toner sensor PCB failure Y 1 13 61 Toner cartridge M is at the end of life 1 20 2E Toner sensor PCB failure M 1 13 62 Toner cartridge Y is at the end of life 1 20 2F Toner sensor PCB failure C 1 13 63 Toner cartridge K is at the end of life 1 20 30 Incorrect EL lamp current value 1 13 64 Replace the t...

Page 21: ...or a new toner cartridge C 1 31 8A Paper jam in Tray 1 T1 1 27 8B Paper jam in Tray 2 LT 1 27 C4 Tray 2 LT plate up function malfunction 1 32 8C Paper jam in MP tray MP 1 27 C5 EL lamp electrifying failure 1 32 C6 Toner cartridge mis dividing 1 32 8E Auto color registration failure when implementing it from the control panel 1 28 C7 Insufficient DIMM memory 1 8 C8 RAM area for secure data full 1 3...

Page 22: ...MP paper feeding kit with a new one After replacing the MP paper feeding kit reset the counter using the control panel on the machine Refer to 2 3 Parts Life Reset Function in Chapter 2 Error code 52 Change PF Kit 1 Replace the T1 paper feeding kit User Check Replace the T1 paper feeding kit with a new one After replacing the T1 paper feeding kit reset the counter using the control panel on the ma...

Page 23: ...using the control panel on the machine Refer to 2 3 Parts Life Reset Function in Chapter 2 Error code 5E Change Belt Unit Replace the belt unit User Check Replace the belt unit with a new one After replacing the belt unit reset the counter using the control panel on the machine Refer to 2 3 Parts Life Reset Function in Chapter 2 Error code 75 Cooling Down Cooling down the inside of the machine to ...

Page 24: ...orted and load the appropriate size of paper Error code 92 LT Size Mismatch Load size paper in Tray 2 and press Go Incorrect paper size User Check Check the paper size to be supported and load the appropriate size of paper Error code 96 No Paper Load size paper in Tray No paper in all trays User Check Load the paper into any of the trays Error code 97 Size Error Specify the correct paper size for ...

Page 25: ...plex printing Check the size setting of the tray to feed paper Error code 9B This error can be found out only in Maintenance mode 82 Print Unable 9B Request on developing bias voltage adjustment User Check The machine starts implementing the developing bias voltage adjustment automatically when it enters the standby status Error code 9C This error can be found out only in Maintenance mode 82 Print...

Page 26: ...heck Check if the DIMM is installed correctly Replace the DIMM with a new one Error code E0 Print Unable E0 Turn the power off and then back on again Program error User Check Turn the power off and on Error code E1 Print Unable E1 Turn the power off and then back on again Program error User Check Turn the power off and on ...

Page 27: ...again Laser diode failure M Error code 23 C Print Unable 23 Turn the power off and then back on again Laser diode failure C Step Cause Remedy 1 Laser unit harness connection failure Check the two harness connections of the laser unit and reconnect them 2 Laser unit failure Replace the laser unit 3 Engine PCB failure Replace the engine PCB ASSY Error code 24 Print Unable 24 Turn the power off and t...

Page 28: ...lure Replace the appropriate motor 3 Engine PCB failure Replace the engine PCB ASSY 4 Low voltage power supply PCB failure Replace the PS PCB unit Error code 28 Print Unable 28 Turn the power off and then back on again Drum drive motor 1 K Y failure Error code 29 Print Unable 29 Turn the power off and then back on again Drum drive motor 2 M C failure Step Cause Remedy 1 Drum drive motor harness co...

Page 29: ...leaner release sensor PCB failure Check the sensor performance following the procedure described in Maintenance mode 32 If any problem occurs replace the belt cleaner release sensor PCB ASSY 5 Belt cleaner release solenoid failure Replace the belt cleaner release ASSY 6 Engine PCB failure Replace the engine PCB ASSY Error code 2B Print Unable 2B Turn the power off and then back on again Air intake...

Page 30: ...propriate color Step Cause Remedy 1 Toner sensor PCB TE NEW failure Check the sensor performance following the procedure described in Maintenance mode 32 If any problem occurs replace the toner sensor PCB ASSY TE NEW for the appropriate color 2 Engine PCB failure Replace the engine PCB ASSY Error code 30 Print Unable 30 Turn the power off and then back on again Incorrect EL lamp current value User...

Page 31: ...B and reconnect them 3 Density sensor holder ASSY failure Replace the density sensor holder ASSY 4 Transfer HVPS PCB unit failure Replace the transfer HVPS PCB unit 5 Engine PCB failure Replace the engine PCB ASSY Error code 33 Print Unable 33 Turn the power off and then back on again Color registration sensor failure User Check Check if there is a scratch dirt or the like on the belt unit If ther...

Page 32: ...arness connection failure of transfer HVPS PCB ASSY Check the two harness connections between the transfer HVPS PCB and registration relay PCB and the two ones between the registration relay PCB and engine PCB Then reconnect them 2 Transfer HVPS PCB ASSY failure Replace the transfer HVPS PCB ASSY 3 Engine PCB failure Replace the engine PCB ASSY Error code 37 Print Unable 37 Turn the power off and ...

Page 33: ...lure Replace the engine PCB ASSY Error code 3A Print Unable 3A Turn the power off and then back on again Error code 7C Print Unable 7C Turn the power off and then back on again Engine communication error Step Cause Remedy 1 Harness connection failure between engine PCB and main PCB Check the harness connection between the engine PCB and main PCB and reconnect it 2 Engine PCB failure Replace the en...

Page 34: ...ngine firmware Turn the power on Resend the engine firmware DJF format with the USB memory while the error code is being indicated Error code 56 Cover is Open Close the Back Cover Back cover opened User Check Check if the back cover is closed certainly Step Cause Remedy 1 Back cover switch failure Check the sensor performance following the procedure described in Maintenance mode 32 2 Harness conne...

Page 35: ...e engine PCB ASSY Error code 58 Fuser Error Turn the power off then on again Leave the machine for 15 min Error code 59 Self Diagnostic Will Automatically Restart within 15 minutes If the same error is detected again 15 minutes later the message below is indicated Print Unable 6A Turn the power off and then back on again Fuser unit failure The code included in the message above is some one of 68 6...

Page 36: ... charge HVPS PCB ASSY 3 Engine PCB failure Replace the engine PCB ASSY Error code 5F Waste Toner Soon Replace the waste toner box User Check Replace the waste toner box with a new one Step Cause Remedy 1 Waste toner sensor failure Check the sensor performance following the procedure described in Maintenance mode 32 If any problem occurs replace the waste toner near full sensor ASSY 2 Harness conne...

Page 37: ...y Replace the toner sensor PCB ASSY TE NEW of the appropriate color 3 Engine PCB failure Replace the engine PCB ASSY Error code 64 C 65 M 66 Y 67 K Ready K Y M C Sample M is blinking Replace the toner cartridge whose color is blinking User Check Gently shake the toner cartridge of the appropriate color from side to side and install it again Replace the toner cartridge of the appropriate color Step...

Page 38: ...specified time Error code 6C Print Unable 6C Turn the power off and then back on again Fuser unit failure The center thermistor detects higher temperature than the specified value Error code 6D Print Unable 6D Turn the power off and then back on again Fuser unit failure The center thermistor detects lower temperature than the specified value Error code 6E Print Unable 6E Turn the power off and the...

Page 39: ...tridge whose color is used reaches the end of life during printing Error code 87 Calibrate Calibration failed Insufficient Toner for Calibration Toner cartridge whose color is used reaches the end of life when implementing calibration from the control panel Error code 9E Registration Registration failed Insufficient Toner for Registration Toner cartridge whose color is used reaches the end of life...

Page 40: ...etween fuser unit connector and engine PCB Check the harness connection between the fuser unit connector and engine PCB and reconnect it 2 Fuser unit failure Replace the fuser unit Error code 7D Drum Error Slide the Green tab on Drum Unit in each color Refer to the User s Guide for the procedures Dirt on drum unit User Check Clean the corona wire in the drum unit Replace the drum unit with a new o...

Page 41: ...scratch dirt or the like on the belt unit If there is replace the belt unit with a new one Check if the genuine toner cartridges are installed in the correct order of colors Step Cause Remedy 1 Density sensor shutter catching on some position Correct catching of the density sensor shutter 2 Harness connection failure of density sensor holder ASSY Check the harness connection of the density sensor ...

Page 42: ...tuator or paper eject actuator catching on some position Correct catching of the registration front actuator registration rear actuator or paper eject actuator 3a Paper eject sensor PCB failure Check the sensor performance following the procedure described in Maintenance mode 32 If any problem occurs replace the fuser unit MP T1 Check the sensor performance following the procedure described in Mai...

Page 43: ... edge sensor PCB ASSY 2 Harness connection failure of T1 PE edge sensor PCB ASSY Check the harness connection of the T1 PE edge sensor PCB ASSY and reconnect it 3 Engine PCB failure Replace the engine PCB ASSY Error code 89 Size Error DX Specify the correct paper and press Go Incorrect paper size in duplex printing User Check Use the letter size or longer paper Do not use too thin paper Step Cause...

Page 44: ...Remedy 1 Harness connection failure of registration front sensor PCB ASSY Check the harness connection of the registration front sensor PCB ASSY in the appropriate tray and reconnect it 2 Paper feeding kit worn out MP T1 LT Replace the paper feeding kit of the appropriate tray MP T1 Check the sensor performance following the procedure described in Maintenance mode 32 If any problem occurs replace ...

Page 45: ...r registration from the control panel User Check Check if there is a scratch dirt or the like on the belt unit If there is replace the belt unit with a new one Step Cause Remedy 1 Invisible damage on belt unit Check the registration mark sensor performance following the procedure described in Maintenance mode 75 If any problem occurs replace the belt unit 2 Harness connection failure of registrati...

Page 46: ... procedure described in Maintenance mode 32 If any problem occurs replace the front door unit ASSY 3 Engine PCB failure Replace the engine PCB ASSY Error code 94 No Paper Load size paper in Tray 1 No paper in Tray 1 T1 Step Cause Remedy 1 T1 PE edge sensor failure Check the sensor performance following the procedure described in Maintenance mode 32 If any problem occurs replace the T1 PE edge sens...

Page 47: ...re Replace the engine PCB ASSY Error code A1 Cover is Open Close the Front Cover Front cover opened Step Cause Remedy 1 Front cover interlock switch failure Check the sensor performance following the procedure described in Maintenance mode 32 If any problem occurs replace the front cover interlock switch ASSY 2 Harness connection failure of front cover interlock switch ASSY Check the harness conne...

Page 48: ...r Put the Magenta M Toner Cartridge back in Identification failure for a new toner cartridge M Error code C3 C Cartridge Error Put the Cyan C Toner Cartridge back in Identification failure for a new toner cartridge C User Check Install the toner cartridges into the machine properly Step Cause Remedy 1 Power off or front cover opened while detecting a new toner cartridge Reset the developing bias v...

Page 49: ...blem occurs replace the LT paper feed frame unit 5 Engine PCB failure Replace the engine PCB ASSY Error code C5 EL Error Open the Front Cover and close it again EL lamp electrifying failure User Check Open and close the front cover Step Cause Remedy 1 Dirt on electrodes on drum unit and front cover Clean both electrodes 2 EL lamp PCB failure Replace the drum unit 3 EL lamp PCB harness broken Repla...

Page 50: ...of USB host relay PCB ASSY Check the harness connection of the USB host relay PCB ASSY and reconnect it 2 USB host relay PCB failure Replace the USB host relay PCB ASSY 3 Main PCB failure Replace the Main PCB ASSY Error code CB No Belt Unit Open the Front Cover pull out the Drum Unit completely and install the Belt Unit Belt unit is not installed into the machine User Check Check if the belt unit ...

Page 51: ... main PCB ASSY Error code CD No Drum Unit Install the Drum Unit Drum unit is not installed into the machine User Check Check if the drum unit is installed into the machine Step Cause Remedy 1 Dirt on electrodes on drum unit and front door unit ASSY Clean both electrodes Refer to Fig 1 2 and Fig 1 3 P 1 35 2 Bending of front door unit ASSY electrode contact Correct the electrode bending of the fron...

Page 52: ...e front door unit ASSY Fig 1 3 How to clean the electrodes Turn off the power switch Unplug the machine from the AC power outlet and leave the machine for a few minutes Then wipe the electrodes above carefully with a dry lint free cloth Be careful not to change the shapes of the electrodes ...

Page 53: ...aner release sensor PCB failure Check the sensor performance following the procedure described in Maintenance mode 32 If any problem occurs replace the belt cleaner release sensor PCB ASSY 5 Belt cleaner release solenoid failure Replace the belt cleaner release ASSY 6 Engine PCB failure Replace the engine PCB ASSY Error code CF Waste Toner Full Replace the Waste Toner Box Refer to the User s Guide...

Page 54: ...ower off and then back on again Failure of wireless LAN connection Connection to the wireless LAN module is failed when the machine is turned ON Error code EE Print Unable EE Turn the power off and then back on again Wireless LAN is unable to communicate Any problem that the wireless LAN cannot be connected is occurred after wireless LAN connection is succeeded User Check Turn the power off Turn i...

Page 55: ...Yes Replace the paper tray 2 T1 edge actuator malfunction Does T1 edge actuator move smoothly No Re assemble T1 edge actuator 3 Disconnection of the paper feed solenoid harness Is the harness of the paper feed solenoid disconnected Yes Reconnect the harness 4 Paper feed belt cleaner motor failure Is the problem solved by replacing the paper feed belt cleaner motor Yes Replace the paper feed belt c...

Page 56: ...reign object around the fuser unit Yes Remove the foreign object 2 Paper eject ASSY malfunction Is each pinch roller of the paper eject ASSY attached to each paper eject roller properly No Replace the paper eject ASSY 3 Paper eject actuator failure Does the paper eject actuator move smoothly Is it damaged No Replace the fuser unit Paper jam in the DX paper feeding section User Check Use the letter...

Page 57: ...n waste toner box electrode Is the electrode of the waste toner box dirty Yes Clean the electrode of the waste toner box 4 Belt unit dirty Does dirt on the paper disappear after replacing the belt unit with a new one Yes Replace the belt unit 5 Toner leak from the waste toner box Is the waste toner box full of toner Yes Replace the waste toner near full sensor ASSY Or replace the main PCB ASSY 3 5...

Page 58: ...Unstable color density Hollow print Downward fogging of solid color Horizontal lines Ghost Dirt on the bottom end of paper Color misregistration Fogging One color band White spots on one color image White horizontal stripes on one color image Vertical streaks Vertical streaks in a light background Horizontal stripes Completely blank Image distortion All one color One color is light Faulty registra...

Page 59: ...n the order of the number described in the Step column in the tables below Light on the whole page User Check Check the machine s environment High temperature and high humidity conditions can cause this problem If the whole page is light toner save mode may be on Replace the toner cartridge or drum unit with a new one Implement calibration from the control panel Step Cause Check Result Remedy 1 Tr...

Page 60: ...ft clean lint free cloth 4 After replacing the toner cartridge of the appropriate color with a new one does the same problem occur even after printing several pages No Replace the toner cartridge of the appropriate color 5 Toner sensor failure Does the machine start printing even after removing the toner cartridge of the appropriate color from the drum unit Yes Clean the toner sensor of the approp...

Page 61: ...Replace the charge HVPS PCB ASSY 5 Engine PCB failure Is the harness connected between the HVPS PCB and engine PCB correctly Yes Replace the engine PCB ASSY Poor fixing User Check Replace the drum unit with a new one Replace the toner cartridge with a new one Implement calibration from the control panel Step Cause Check Result Remedy 1 Fuser unit failure Is the problem solved after replacing the f...

Page 62: ...the problem solved after replacing the Laser unit Yes Replace the laser unit 5 Transfer HVPS PCB failure Is the problem solved after replacing the transfer HVPS PCB ASSY Yes Replace the transfer HVPS PCB ASSY 6 Charge HVPS PCB failure Is the problem solved after replacing the charge HVPS PCB ASSY Yes Replace the charge HVPS PCB ASSY Image distortion Step Cause Check Result Remedy 1 Laser unit not ...

Page 63: ...e PCB ASSY 6 Laser unit failure Is the problem solved after replacing the laser unit Yes Replace the laser unit Dirt on the back of paper User Check If there is dirt on the back of the paper in duplex printing the back of the paper tray may be dirty Clean the back of the paper tray Step Cause Check Result Remedy Yes Print approximate 10 pages 1 Fuser unit dirty Is the pressure roller ASSY dirty Is...

Page 64: ... Exposure drum dirty Is there vertical dirt with toner on the surface of the exposure drum Yes Replace the drum unit 4 Scratch on the heat roller Is there a scratch on the surface of the heat roller Yes Replace the fuser unit Note If the machine prints the same pattern especially including vertical streaks continuously black vertical streaks may appear on the paper since the electrostatic performa...

Page 65: ... the horizontal stripes at 37 4 mm develop roller circumference intervals Yes This problem will disappear by printing approximate 10 pages If the same problem occurs replace the toner cartridge 4 Scratch on the exposure drum Are the horizontal stripes at 75 0 mm exposure drum circumference intervals Yes Replace the drum unit 5 Scratch on the heat roller Are the horizontal stripes at 78 5mm heat ro...

Page 66: ... the machine 2 hours to allow it to reach room temperature 2 Transfer failure Is the transfer roller of the appropriate color scratched Yes Replace the drum unit 3 Scanner windows failure Is the problem solved after replacing the laser unit Yes Replace the laser unit White horizontal stripes on one color image User Check Check that the appropriate media type is selected in the printer driver The p...

Page 67: ...spots is less than 0 35mm feed the drum cleaning sheet from the MP tray one to three times to clean the drum For the procedure refer to Drum Unit Cleaning Mode in Chapter 5 When the size of the spots is 0 35mm or more or when the same problem occurs after feeding the drum cleaning sheet wipe off the dirt on the exposure drum with a cotton swab For the procedure refer to Note in the next pages The ...

Page 68: ...eft hand Fig 1 6 Caution We recommend that you place the drum unit on a clean flat surface with a piece of disposable paper underneath it in case you accidentally spill or scatter toner 3 See the print sample to identify the color causing the problem The color of the spots is the color of the drum you should clean For example if the spots are cyan you should clean the drum for cyan Put the print s...

Page 69: ...ace comes off Fig 1 9 Caution DO NOT clean the surface of the photosensitive drum with a sharp object 6 Turn the drum unit gear to the direction of the arrow as shown in the figure below by hand to return it to the home position The home position of each drum can be identified by matching the number on the drum unit gear to the same number on the side of the drum unit as shown in the illustration ...

Page 70: ...Cause Check Result Remedy 1 Drum unit failure Are the spots at 75 0 mm exposure drum circumference intervals Yes If the surface of the exposure drum is scratched replace the drum unit 2 Drum unit connection failure Are the electrodes on the drum unit and machine body dirty Yes Clean both electrodes 3 Fuser unit failure Are the spots at 78 5mm heat roller circumference intervals Yes Replace the fus...

Page 71: ...rged electrode Are the electrodes on the drum unit and machine body dirty Yes Clean both electrodes 2 Paper tray ground terminal provided in machine body Is the paper tray ground terminal bent which is provided in the machine body Yes Correct bending of paper tray ground terminal Ghost User Check Check the machine s environment conditions such as high humidity may cause this situation to occur Che...

Page 72: ...eplace the drum unit with a new one Do not use acid paper Check if there is dust or paper powder in the machine Step Cause Check Result Remedy 1 Toner sensor failure Machine body Is the toner sensor performed normally by following the procedure described in Maintenance mode 32 to check No Replace the toner sensor PCB TE NEW of the appropriate color 2 Transfer HVPS PCB failure Is the problem solved...

Page 73: ...he main PCB ASSY Yes Replace the main PCB ASSY 5 Engine PCB failure Is the problem solved after replacing the engine PCB ASSY Yes Replace the engine PCB ASSY 6 Transfer HVPS PCB failure Is the problem solved after replacing the transfer HVPS PCB ASSY Yes Replace the transfer HVPS PCB ASSY 7 Charge HVPS PCB failure Is the problem solved after replacing the charge HVPS PCB ASSY Yes Replace the charg...

Page 74: ...dy 1 Dirt on the bottom of drum unit Is the bottom of drum unit dirty Yes Wipe the dirt with a dry cloth as shown in Fig 1 11 2 Dirt on base shaft Is the base shaft dirty Yes Wipe the dirt with a dry cloth as shown in Fig 1 12 Fig 1 11 Fig 1 12 Figure of the front view Base shaft ...

Page 75: ...s Step Cause Check Result Remedy 1 Failure inside the machine Does the machine print Printer Settings No Identify the error type and then refer to the specified section of this chapter 2 Machine connection For Macintosh has the product ID been verified No Verify the product ID Product ID HL 4040CN 002E HL 4050CDN 002F HL 4070CDW 0030 Hexadecimal 3 USB host relay PCB failure Is the problem solved a...

Page 76: ...esetting the factory settings Step Cause Check Result Remedy 1 Wireless LAN PCB failure HL 4070CDW Is the problem solved after replacing the wireless LAN PCB ASSY Yes Replace the wireless LAN PCB ASSY 2 Main PCB failure Is the problem solved after replacing the main PCB ASSY Yes Replace the main PCB ASSY ...

Page 77: ...ce the main PCB ASSY The fan does not work Verify the position of each fan referring to 1 4 17 Operational Check of Fans Function code 78 in Chapter 5 Step Cause Check Result Remedy 1 Harness connection failure of the appropriate fan Is the harness of the appropriate fan connected correctly No Reconnect the harness of the appropriate fan correctly 2 Charge HVPS PCB failure Is the problem solved af...

Page 78: ...if any printing quality problem appears Parts Approximate Life Standard cartridge Approx 2 500 pages A4 Letter pages 5 coverage Black High capacity cartridge Approx 5 000 pages A4 Letter pages 5 coverage Standard cartridge Approx 1 500 pages A4 Letter pages 5 coverage Toner Cartridge Cyan Magenta Yellow High capacity cartridge Approx 4 000 pages A4 Letter pages 5 coverage Drum Unit Approx 17 000 p...

Page 79: ...s need to be reset in order to count the number of replacement times Refer to 2 3 Parts Life Reset Function in this chapter Also make sure to wipe the dirt on the drum unit as shown in the figure below when replacing each of the periodical replacement parts The number of printed pages of the machine can be checked on Print Settings Refer to 2 3 Printout of Printer Settings in Chapter 5 The actual ...

Page 80: ...user Unit Toner Filter Frame ASSY Uninstalling Procedure 1 Open the Back cover Fig 2 1 2 Remove the two pan B M4x14 Taptite screws and then pull out the Fuser unit to the back of the machine Fig 2 2 Back cover Back side Fuser unit Taptite pan B M4x14 Taptite pan B M4x14 Back side ...

Page 81: ...ASSY from the Paper eject ASSY DX SX Fig 2 3 Installing Procedure 1 Assemble the Toner filter frame ASSY onto the Paper eject ASSY DX SX Fig 2 4 Toner filter frame ASSY Paper eject ASSY DX SX Toner filter frame ASSY Paper eject ASSY DX SX 3a 3b 1a 1b ...

Page 82: ...y turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Fig 2 5 Note When assembling the fuser unit make sure that the two Harnesses are placed in the groove and under the rib of the Plastic frame If they are not then correct them as shown in the figure below Fig 2 6 Fuser unit Back side Harness Plastic frame Harn...

Page 83: ...Confidential 2 6 3 Close the Back cover Fig 2 7 4 After replacing the Fuser unit reset the counter Refer to 2 3 Parts Life Reset Function in this chapter Back cover Back side ...

Page 84: ... 2 Laser Unit Uninstalling Procedure 1 Press the Front cover release button and open the Front door unit ASSY Fig 2 8 2 Open the Back cover Fig 2 9 Front door unit ASSY Front cover release button 1a 1b Back cover Back side ...

Page 85: ...ews and then remove the Back cover upper Fig 2 10 4 Remove the two cup S M3x8 Taptite screws and then remove the Back cover ASSY Fig 2 11 Back cover upper Taptite cup S M3x8 Back side Taptite cup S M3x8 Back cover ASSY Taptite cup S M3x8 Back side Hook Hook ...

Page 86: ...p B M4x12 Taptite screws and two cup S M4x8 Taptite screws 8 Release the one Hook on the front side two Hooks on the bottom and the two Hooks on the back side and then remove the Side cover R ASSY Note When removing the Side cover R ASSY be careful not to damage section A Fig 2 13 Hook Taptite cup B M4x12 Taptite cup S M3x8 Taptite cup B M4x12 Hooks Hooks Side cover L ASSY Left side Taptite cup S ...

Page 87: ...ide of the Top cover ASSY Fig 2 14 10 Remove the three cup S M3x8 Taptite screws from the front side of the Top cover ASSY Fig 2 15 Taptite cup B M4x14 Taptite cup B M4x14 Top cover ASSY Back side Taptite cup S M3x8 Taptite cup S M3x8 Taptite cup S M3x8 Top cover ASSY Front side ...

Page 88: ...it Fig 2 16 12 While inclining the Top cover ASSY 45 to 90 to the left hand side disconnect the Connector 5pin from the LCD panel PCB ASSY and the Connector 6pin from the USB host relay PCB ASSY Fig 2 17 Hooks Hooks Top cover ASSY Frame unit Connector 5pin Connector 6pin LCD panel PCB ASSY USB host relay PCB ASSY Frame unit Left side 11a 11b 11c 11d Hooks 11e 11f ...

Page 89: ... LAN PCB ASSY HL 4070CDW only Fig 2 18 14 Remove the four cup S M3x8 Taptite screws and then remove the two Hook slopes Fig 2 19 Wireless LAN PCB ASSY Connector Front side Hook slope Hook slope Taptite cup S M3x8 Frame unit Taptite cup S M3x8 Front side Frame unit ...

Page 90: ...cover Fig 2 20 16 Disconnect the two flat cables CN1 CN4 and connector CN8 from the Laser unit Note After disconnecting the flat cable s check that each cable is not damaged at its end or short circuited Fig 2 21 Scanner cover Taptite cup S M3x6 Taptite cup S M3x6 Taptite cup S M3x6 Taptite cup S M3x6 Frame unit Front side Laser unit Front side ...

Page 91: ...positioning boss of the Laser unit into the positioning hole referring to the figure below Fig 2 23 Scanner holder Taptite cup S M3x6 SR Laser unit Scanner holder Frame unit Taptite cup S M3x6 SR Taptite cup S M3x6 SR Scanner holder Scanner holder Taptite cup S M3x6 SR Front side Scanner holder Taptite cup S M3x6 SR Laser unit Scanner holder Frame unit Taptite cup S M3x6 SR Taptite cup S M3x6 SR S...

Page 92: ... at an angle Fig 2 24 3 Assemble the Scanner cover with the nine cup S M3x6 Taptite screws 8 pieces on the top and 1 piece on the front side Note When assembling the Scanner cover secure the Screws in the order of the numbers which are indicated on the Scanner cover Fig 2 25 Laser unit Front side Scanner cover Taptite cup S M3x6 Taptite cup S M3x6 Taptite cup S M3x6 Taptite cup S M3x6 Frame unit F...

Page 93: ...e four cup S M3x8 Taptite screws Fig 2 26 5 Connect the Connector into the Wireless LAN PCB ASSY HL 4070CDW only Fig 2 27 Hook slope Hook slope Taptite cup S M3x8 Frame unit Taptite cup S M3x8 Front side Wireless LAN PCB ASSY Connector Front side Frame unit ...

Page 94: ...to the LCD panel PCB ASSY Fig 2 28 7 Align the two Hooks of the front side of the Top cover ASSY with the Frame unit and catch the six Hooks at the same time Fig 2 29 Hooks Hooks Top cover ASSY Frame unit Connector 5pin Connector 6pin LCD panel PCB ASSY USB host relay PCB ASSY Frame unit Front side Back side Hooks ...

Page 95: ... in the direction to loosen the screw with your hand until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Taptite cup B M4x14 Tightening torque 1 20 0 1 N m 1 Taptite cup B M4x14 Tightening torque 1 20 0 1 N m 1 Top cover ASSY Back side T...

Page 96: ... 1 Tightening Note When tightening the screw slowly turn it counterclockwise in the direction to loosen the screw with your hand until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Hook Taptite cup B M4x12 Tightening torque 1 20 0 1 N m ...

Page 97: ...nd assemble it with the two cup S M3x8 Taptite screws Fig 2 34 13 Assemble the Back cover upper with the two cup S M3x8 Taptite screws Fig 2 35 Taptite cup S M3x8 Back cover ASSY Taptite cup S M3x8 Back side Back cover upper Taptite cup S M3x8 Back side Hook Hook ...

Page 98: ... Close the Back cover Fig 2 36 15 Close the Front door unit ASSY Fig 2 37 16 After replacing the Laser unit reset the counter Refer to 2 3 Parts Life Reset Function in this chapter Back cover Back side Front door unit ASSY ...

Page 99: ...per tray and remove the paper from the Paper tray Fig 2 38 2 Release the two Hooks of the Separation pad ASSY and then lift up the Separation pad ASSY Note Be careful not to loose the Separation pad spring Fig 2 39 Paper tray Hook Hook Separation pad ASSY Paper tray Front side Separation pad spring ...

Page 100: ...ss the Front cover release button and open the Front door unit ASSY 6 Push the Lift arm to the direction of the arrow 6a and release the boss of the Roller holder ASSY Then turn the Roller holder ASSY to the direction of the arrow 6b Fig 2 41 Separation pad ASSY Pin Pin Paper tray 3b 3a 3a Front side Paper feed frame unit Paper feed frame unit Roller holder ASSY Boss Lift arm 6a 6b Front side Sepa...

Page 101: ... the Paper feed frame unit in the order of the arrow 1a 1b and 1c Fig 2 43 Paper feed frame unit Roller holder ASSY 7a 7b 7c Upper side Paper feed frame unit Holder shaft 1c 1b 1a Upper side Front side Front side Roller holder ASSY Paper feed frame unit Align the holder shaft of the Roller holder ASSY with the shape of the hole on the Paper feed frame unit and put the shaft into the hole ...

Page 102: ...g the Roller holder upwards If the Lift arm is not moved it is not assembled correctly Fig 2 44 3 Close the Front door unit ASSY 4 Assemble the Separation pad spring Put the positioning section of the Separation pad ASSY into the spring and catch the two Hooks Fig 2 45 Paper feed frame unit Paper feed frame unit Roller holder ASSY Boss Lift arm 2a 2b Front side Separation pad ASSY Hook Hook Paper ...

Page 103: ...that the Separation pad ASSY pivots up and down smoothly by pushing it gently Fig 2 46 6 Install the Paper tray into the machine Fig 2 47 7 After replacing the Paper feeding kit reset the counter Refer to 2 3 Parts Life Reset Function in this chapter Pin Separation pad ASSY Paper tray Front side Paper tray Pin 5b 5a 5a ...

Page 104: ...ver release button and open the Front door unit ASSY 2 Release the two Hooks to remove the MP feed frame cover from the Front door unit ASSY Fig 2 48 3 Remove the MP lift arm 2 Fig 2 49 Hooks MP feed frame cover Front door unit ASSY Front side Front door unit ASSY MP lift arm 2 Front side ...

Page 105: ...the Holder bush MP from the shaft of the MP roller holder ASSY Fig 2 50 5 Slide the MP roller holder ASSY in the direction of arrow 5a and slightly pull it down in the direction of arrow 5b Then remove it Fig 2 51 MP roller holder ASSY Hook Holder bush MP Front door unit ASSY 4b 4a Front side MP roller holder ASSY Front door unit ASSY 5a 5b Front side ...

Page 106: ...MP 2 Put the positioning section of the Separation pad ASSY MP into the Separation pad spring MP and catch the two Hooks to fix the Separation pad ASSY MP Note Check that the Separation pad ASSY MP moves smoothly by pushing it up and down Fig 2 53 Separation pad ASSY MP Front door unit ASSY Front side Separation pad ASSY MP Hook Front side 6a 6b 2a 2b Separation pad spring MP Separation pad spring...

Page 107: ...row 3b to re assemble it Fig 2 54 4 Put into the Holder bush MP to the direction of the arrow 4a and turn it to the direction of the arrow 4b so that the Hook catches Fig 2 55 MP roller holder ASSY Front door unit ASSY 3b 3a Front side MP roller holder ASSY Hook Holder bush MP Front door unit ASSY 4a 4b Front side Holder shaft Separation pad ASSY MP Hole ...

Page 108: ... hole on the MP lift arm 2 Fig 2 56 6 Assemble the MP feed frame cover onto the Front door unit ASSY 7 Close the Front door unit ASSY Fig 2 57 8 After replacing the MP paper feeding kit reset the counter Refer to 2 3 Parts Life Reset Function in this chapter Front door unit ASSY Hole Front side MP lift arm 2 Shaft MP roller holder ASSY Bosses Hooks MP feed frame cover Front door unit ASSY Front si...

Page 109: ...atus 2 The Reset Parts Life will appear on the LCD Select the applicable periodical replacement part by pressing the or button and press the OK button Periodical replacement parts are indicated on the LCD Drum Unit Belt Unit PF KitMP PF Kit1 PF Kit2 Fuser Unit Laser Unit 3 The OK will appear on the LCD Then press the OK button 4 The machine implements clearing the counter 5 The machine returns to ...

Page 110: ...CBs and covers Static electricity charged in your body may damage electronic parts When transporting PCBs be sure to wrap them in conductive sheets When replacing the PCB and all the other related parts put on a grounding wrist band and perform the job on a static mat Also take care not to touch the conductor sections on the flat cables or on the wire harness After disconnecting flat cables check ...

Page 111: ...Confidential 3 2 2 PACKING Accessory bag Option carton Option carton AC cord Toner cartridge C M Y K IF cover Pad Machine Pad Drum stopper L Drum stopper R Belt lock R Belt lock L Carton ...

Page 112: ...ield plate 1 Taptite bind B M3x8 2 0 60 0 1 6 1 Earth plate 2 Taptite cup S M3x6 1 0 80 0 1 8 1 Earth plate 3 Taptite bind B M3x8 1 0 60 0 1 6 1 Registration mark sensor PCB ASSY 1 Taptite bind B M3x8 1 0 60 0 1 6 1 Registration mark sensor PCB ASSY 2 Taptite bind B M3x8 1 0 60 0 1 6 1 Density sensor Taptite bind B M3x8 2 0 60 0 1 6 1 Registration relay PCB ASSY Taptite bind B M3x8 1 0 60 0 1 6 1 ...

Page 113: ... 80 0 1 8 1 LCD panel PCB ASSY Taptite bind B M3x8 3 0 50 0 1 5 1 USB holder Taptite bind B M3x8 2 0 50 0 1 5 1 Paper chute Taptite cup B M4x12 6 0 80 0 1 8 1 Top cover R Taptite cup B M4x12 1 1 20 0 1 12 1 Wireless LAN holder Taptite cup S M3x8 1 0 80 0 1 8 1 Hook slope Taptite cup S M3x8 4 0 70 0 1 7 1 8 0 90 0 1 9 1 Top side Scanner cover Taptite cup S M3x6 1 0 80 0 1 8 1 Front side Laser unit ...

Page 114: ...Taptite flat B M3x10 2 0 60 0 1 6 1 Ground terminal Screw pan S P washer M4x8 1 0 80 0 1 8 1 PS PCB unit Taptite bind B M4x12 3 0 90 0 1 9 1 Taptite cup B M4x12 3 1 20 0 1 12 1 Belt gear plate ASSY Screw cup M3x6 1 0 70 0 1 7 1 LV fan duct Taptite bind B M3x10 1 0 80 0 1 8 1 Belt unit drive motor ASSY Taptite cup B M4x12 3 1 20 0 1 12 1 Belt unit drive motor Screw bind M3x5 2 0 70 0 1 7 1 LT tray ...

Page 115: ...TION BG2 BG2 BG MU 2mm dia ball BG2 BG2 BG2 BG MU 2mm dia ball Motor shaft Develop drive motor ASSY Develop gear plate ASSY Paper feed belt cleaner motor Gear 90R 24 Gear 80R 30 Gear 90R 24 Gear 80R 30 3 places 3 places 3 places ...

Page 116: ... dia ball PG2 PG2 PG 661 W 2mm dia ball Gear 39 121 Gear 39 121 Gear 39 121 Drum drive ASSY 28 places 7 places x4 4 places 1 place x4 Gear stopper Gear 39 121 MP paper guide ASSY 6 places 3 place x2 Cross section of the MP paper guide ASSY ...

Page 117: ...m dia ball LT frame L In case of 2mm dia ball x4 28 places 4 place x7 Gear 24 LT Gear 46 LT 60 places 4 place x15 Clutch gear 45 Gear 45 40 Gear 32 LT Gear 37 22 Gear 46 55 Gear 20A Gear 33 In case of 2mm dia ball x4 Gear 46 55 A spring is hung installation part 2 places ...

Page 118: ...Confidential 3 9 BG2 BG2 BG MS 2mm dia ball GE2 GE2 GE 676 2mm dia ball F roller shaft LT F roller AC LT LT frame R LT frame L F roller shaft LT F roller shaft LT 2 places 2 places ...

Page 119: ...676 2mm dia ball PG2 PG 661 W 2mm dia ball PG2 PG2 PG 661 W 2mm dia ball Paper feed drive shaft LT ASSY LT frame L Bush AC LT 4 places 4 places Clutch gear 45 Clutch arm Clutch gear 45 Fittings shaft In case of 2mm dia ball x2 2 places ...

Page 120: ...dential 3 11 EM2 EM2 EM2 MOLYKOTE EM D110 2mm dia ball 1 4mm PG2 PG2 PG 661 W 2mm dia ball LT paper tray Extension guide R Extension guide L Side guide R Side guide R LT paper tray In case of 2mm dia ball x4 ...

Page 121: ...001 Gear 35 PAPER EJECT 18 LR0482001 Eject roller gear 19 LJ7365001 Idle gear 16B 20 LJ7365001 Idle gear 16B 21 LJ7365001 Idle gear 16B 22 LJ7365001 Idle gear 16B 23 LM5016001 Ejector gear 16 24 LM5018001 Ejector gear 16 planetary 25 LM5019001 Ejector gear 22 26 LR0480001 Ejector gear 16 20 27 LR0482001 Eject roller gear 28 LJ7365001 Idle gear 16B 29 LR0979001 Ejector gear 28 sector 30 LM5019001 E...

Page 122: ... LR0320001 PU sector gear Z4648M08 41 LR0324001 Torque spring for PU sector Location of parts after removing the parts shown as 35 to 41 in the figure above 42 LR0309001 PP gear clutch cam 43 LR0310001 PP gear clutch cam spring 43 42 43 42 Location of parts after removing the parts shown as 42 and 43 in the figure above 44 LR0308001 Hook C 45 LR0307001 Hook B 46 LR0910001 Hook spring BC 44 46 45 4...

Page 123: ...unit Registration mark sensor PCB ASSY 1 2 Density sensor Transfer HVPS PCB unit Registration relay PCB ASSY Registration mark sensor PCB ASSY 1 Registration mark sensor PCB ASSY 2 Density sensor Ground plate 2 Clamp Hooks Hook Side frame L LCD panel PCB ASSY USB host relay PCB ASSY Main PCB ASSY Fan motor holder 40 Front ...

Page 124: ...ASSY Belt cleaner release sensor PCB ASSY Engine PCB ASSY Belt cleaner release sensor PCB ASSY SOL PCB sheet Belt cleaner release solenoid ASSY Belt cleaner release solenoid ASSY T1 PE edge sensor PCB ASSY T1 PE edge sensor PCB ASSY Hook Hook Hook Hook Hook Hook Hole Hole Front Hole Side frame L PF CR harness holder Clamp Clamp Side frame L B view B view A view A view Front ...

Page 125: ...CDW only 4 Wireless LAN PCB ASSY THM HUM sensor holder ASSY Fan motor holder 40 Wireless LAN PCB ASSY Hook Hook Develop release sensor PCB ASSY Develop gear plate ASSY Hook Clamp Clamps Hooks Hole Hole Side frame L Main PCB ASSY Engine PCB ASSY Side frame L Side frame L Front Front ...

Page 126: ...aser unit Develop press drive L ASSY Release drive holder Laser unit Hooks Hook Hole Hole Hole Hole Side frame L Side frame L Main PCB ASSY Engine PCB ASSY Clamp Clamp Clamp Develop gear plate ASSY Develop gear plate ASSY Front Front ...

Page 127: ...r sensor PCB ASSY C TE NEW Toner sensor PCB ASSY M TE NEW Toner sensor PCB ASSY Y TE NEW Toner sensor PCB ASSY K TE NEW Hooks Hook Hook Hook Hooks Hooks Hook Front cover interlock switch ASSY Front cover interlock switch ASSY Interlock harness guide Interlock harness guide Hole Clamps Clamp Clamp Engine PCB ASSY Engine PCB ASSY Side frame L Side frame L Release drive holder Release drive holder Re...

Page 128: ... LVPS fan PS PS PCB unit Harness holder 16AWG Harness holder 16AWG Power supply switch Power inlet socket Power inlet socket Ground terminal Screw pan S P washer M4x8 Hook Hooks Hook Hook Hooks Frame R Frame R Charge HVPS PCB ASSY Back Front Front ...

Page 129: ...idential 3 20 Paper feed belt cleaner motor ASSY 11 Hook Hook Hook Hook Hook Hook Frame L Engine PCB ASSY Engine PCB plate Drive frame unit ASSY Drum drive ASSY Rib Paper feed belt cleaner motor ASSY Front ...

Page 130: ...rk sensor PCB ASSY 2 10s 10s Registration relay PCB ASSY 10s 10s Transfer HVPS PCB ASSY 20s 20 Density sensor 10s 10s Drum drive motor 10s 10s Release drive holder 10s 10s Eeach sensor 15s 15s Drum drive ASSY 50s 50s Drum phase sensor PCB ASSY 1 10s 10s Drum phase sensor PCB ASSY 2 10s 10s 75s 75s 8 13 Back cover ASSY 10s 10s 8 17 Side cover L ASSY 30s 30s 8 25 Release rack 10s 15s 8 26 Front door...

Page 131: ...URE 8 1 AC Cord 1 Disconnect the AC cord from the Main body Fig 3 1 8 2 Toner Cartridge 1 Press the Front cover release button and open the Front door unit ASSY Fig 3 2 Main body AC cord Front door unit ASSY Front cover release button 1a 1b ...

Page 132: ...handle of the Drum unit Lift the drum unit up and then pull it out until it stops Fig 3 3 Note If you cannot pull the drum unit out make sure that the front door unit ASSY is fully open as shown below Fig 3 4 Green handle Drum unit 2a 2b ...

Page 133: ... of the Toner cartridge to release the Locks Then hold the Handle of the Toner cartridge and pull it out of the drum unit Fig 3 5 4 Repeat Step 3 for all the other Toner cartridges Fig 3 6 Handle Lock Lock Toner cartridge Toner cartridge ...

Page 134: ...so released engaging with the action of the lock lever L Fig 3 7 2 Hold the two Green handles in the front and back of the Drum unit and pull out the drum unit while lifting it up slightly Fig 3 8 Drum lock lever R Drum lock lever L Drum lock lever L Drum unit 2a 2b Front side Green handle front Green handle back ...

Page 135: ...Confidential 3 26 Note If continuing the disassembly always return the Drum lock lever L to the original locking position Fig 3 9 Drum lock lever L Front side ...

Page 136: ... Unit 1 Lift up both sections A and B of the Belt unit slightly and pull it out Fig 3 10 8 5 Waste Toner Box 1 Lift up the section A of the Waste toner box and pull it out Fig 3 11 B Belt unit Waste toner box A 1a 1b 1a 1b 1a A ...

Page 137: ...the paper from the Paper tray Fig 3 12 3 Release the two Hooks of the Separation pad ASSY and then lift up the Separation pad ASSY Note Be careful not to loose the Separation pad spring Fig 3 13 Paper tray Front door unit ASSY Hook Hook Separation pad ASSY Paper tray 1 2 Front side Separation pad spring ...

Page 138: ...pad ASSY from the Paper tray 5 Remove the Separation pad spring from the Paper tray Fig 3 14 6 Remove the two bind B M4x12 Taptite screws and then remove the Tray cover ASSY Fig 3 15 Separation pad ASSY Pin Pin Taptite bind B M4x12 Tray cover ASSY Paper tray 4b 4a 4a Front side Top of paper tray Separation pad spring ...

Page 139: ... ASSY HL 4050CDN 4070CDW only 1 Release the three Hooks to remove the DX hook ASSY AC 2 Release the two Bosses to remove the DX feed ASSY Fig 3 17 Hook Hook Paper guide DX ASSY DX feed ASSY Bottom of tray Boss Boss DX feed ASSY Release the boss on the right hand side first DX feed ASSY Hooks DX hook ASSY AC Hook Top view Side view ...

Page 140: ... Cover ASSY MP Paper Guide ASSY 1 Open the MP cover ASSY Fig 3 18 2 Release the two Bosses of the MP paper guide ASSY Fig 3 19 MP paper guide ASSY MP cover ASSY MP paper guide ASSY Boss Boss MP cover ASSY Front side Front side ...

Page 141: ...en remove the MP paper guide ASSY Fig 3 20 4 Release the Bosses while bending the MP cover ASSY and remove the MP cover ASSY from the Front door main Fig 3 21 MP paper guide ASSY MP cover ASSY Front door main Boss MP cover ASSY 3a 3b Front side Front side A Boss Boss MP cover ASSY Front door main MP paper guide ASSY Boss MP lower chute ...

Page 142: ...fidential 3 33 Assembling Note When assembling the MP paper guide ASSY note the assembling method referring to the figure below Fig 3 22 MP paper guide ASSY Boss A Boss A Boss B Boss B MP paper guide ASSY ...

Page 143: ...elease button and open the Front door unit ASSY 2 Release the two Hooks to remove the MP feed frame cover from the Front door unit ASSY Fig 3 23 3 Remove the MP lift arm 2 Fig 3 24 Hooks MP feed frame cover Front door unit ASSY Front door unit ASSY MP lift arm 2 Front side Front side ...

Page 144: ...from the shaft of the MP roller holder ASSY Fig 3 25 5 Slide the MP roller holder ASSY in the direction of arrow 5a and slightly pull it down in the direction of arrow 5b Then remove it Fig 3 26 MP roller holder ASSY Front door unit ASSY MP roller holder ASSY Hook Holder bush MP Front door unit ASSY 4a 5a 5b Front side Front side ...

Page 145: ...ation pad ASSY MP from the Front door unit ASSY 7 Remove the Separation pad spring MP Note Be careful not to loose the Separation pad spring MP Fig 3 27 Separation pad ASSY MP Front door unit ASSY Front side Separation pad spring MP 6a 6b ...

Page 146: ... slowly turn it counterclockwise in the direction to loosen the screw with your hand until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Fuser unit Back side Back side Back cover Taptite pan B M4x14 Tightening torque 1 20 0 1 N m 1 Tapti...

Page 147: ...Assembling Note When assembling the fuser unit make sure that the two Harnesses are placed in the groove and under the rib of the Plastic frame If they are not then correct them as shown in the figure below Fig 3 31 Toner filter frame ASSY Paper eject ASSY DX SX 3a 3b Harness Plastic frame Harness ...

Page 148: ...Confidential 3 39 8 11 Back Cover Upper 1 Remove the two cup S M3x8 Taptite screws and then remove the Back cover upper Fig 3 32 Back cover upper Taptite cup S M3x8 Back side ...

Page 149: ...aptite screw and then remove the Drive shaft holder Fig 3 33 2 Release the Hook to remove the Fuser drive gear 18 from the shaft Fig 3 34 Fuser drive gear 18 Paper eject ASSY DX SX Drive shaft holder Taptite bind B M3x10 Hook Paper eject ASSY DX SX Back side Back side 1a 1b ...

Page 150: ...n the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Parts Replacement Note The Paper eject ASSY DX is supplied with the Drive shaft holder already fitted When replacing the Paper eject ASSY DX remove the Drive shaft holder from the supplied Paper eject ASSY DX first then assemble the Paper eject ASSY DX Fig 3 36 Taptite cup S M3x6...

Page 151: ...f the arrow 3 to align it with the screw hole of the Paper eject ASSY DX SX and secure the Drive shaft holder with the bind B M3x10 Taptite screw Fig 3 37 8 13 Back Cover ASSY 1 Remove the two cup S M3x8 Taptite screws and then remove the Back cover ASSY Fig 3 38 Taptite cup S M3x8 Back cover ASSY Taptite cup S M3x8 Back side Hole Paper eject ASSY DX SX Paper eject ASSY DX SX Taptite bind B M3x10 ...

Page 152: ...ting it up slightly Note When removing the Paper guide DX be careful not to damage the two Ribs Fig 3 39 2 Slide the HV TR top cover to the left hand side and release the four Hooks Then remove the HV TR top cover Fig 3 40 Boss Hook Transfer HVPS PCB unit Boss Hook Paper guide DX HV TR top cover Hooks Transfer HVPS PCB unit Hooks Back side Back side Ribs ...

Page 153: ...ration relay PCB unit Note After disconnecting the flat cable s check that each cable is not damaged at its end or short circuited When connecting the flat cable s do not insert it at an angle After insertion check that the cable is not at an angle CN8 CN5 CN1 Fig 3 42 Connector Transfer HVPS PCB unit Electrode head Registration relay PCB ASSY Transfer HVPS PCB unit Back side Back side ...

Page 154: ... 8 16 Registration mark Sensor PCB ASSY 1 2 Density Sensor Registration Relay PCB Transfer HVPS PCB ASSY 1 Remove the bind B M3x8 Taptite screw and then remove the Earth plate 3 Fig 3 44 Taptite cup S M3x6 Taptite cup S M3x6 Transfer HVPS PCB unit Taptite bind B M3x8 Transfer HVPS PCB unit Earth plate 3 Back side ...

Page 155: ...rews and then remove the Density shield plate 1 Fig 3 45 3 Remove the cup S M3x6 Taptite screw and then remove the Earth plate 2 Fig 3 46 Taptite bind B M3x8 Transfer HVPS PCB unit Density shield plate 1 Transfer HVPS PCB unit Taptite cup S M3x6 Earth plate 2 ...

Page 156: ... the Connector CN4 of the Registration mark sensor PCB ASSY 2 7 Remove the bind B M3x8 Taptite screw and then remove the Registration mark sensor PCB ASSY 2 Fig 3 48 Taptite bind B M3x8 Transfer HVPS PCB unit Blue CN3 Registration relay PCB ASSY Registration mark sensor PCB ASSY 1 Transfer HVPS PCB unit White CN4 Registration relay PCB ASSY Taptite bind B M3x8 Registration mark sensor PCB ASSY 2 C...

Page 157: ...6 CN9 CN13 from the Registration relay PCB ASSY Note After disconnecting the flat cable s check that each cable is not damaged at its end or short circuited When connecting the flat cable s do not insert it at an angle After insertion check that the cable is not at an angle CN13 CN9 CN2 CN6 Fig 3 50 Density sensor Taptite bind B M3X8 Registration relay PCB ASSY CN7 Transfer HVPS PCB unit Connector...

Page 158: ...fer HVPS PCB unit Fig 3 51 12 Remove the three cup B 3x10 Taptite screws and one cup S M3x6 Taptite screw and then remove the HV TR ground plate and Transfer HVPS PCB ASSY Fig 3 52 Registration relay PCB ASSY Transfer HVPS PCB unit Pin Taptite bind B M3X8 Taptite cup S M3x6 Taptite cup B M3x10 Transfer HVPS PCB ASSY HV TR ground plate Transfer HVPS PCB unit Hook Bottom side Bottom side 11a 11b ...

Page 159: ...Note When assembling the Registration relay PCB ASSY put the section A of the Registration relay PCB ASSY into the section B of the Transfer HVPS PCB unit Fig 3 53 Registration relay PCB ASSY B A Transfer HVPS PCB unit Bottom side ...

Page 160: ... it counterclockwise in the direction to loosen the screw with your hand until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver 3 Remove the Access cover from the Side cover L Fig 3 55 Hook Taptite cup B M4x12 Tightening torque 1 20 0 1 N m...

Page 161: ...screw slowly turn it counterclockwise in the direction to loosen the screw with your hand until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Taptite cup S M4x8 Side plate LB Taptite cup B M4x12 Tightening torque 1 20 0 1 N m 1 Taptite c...

Page 162: ...ct the Connector from the Engine PCB ASSY and then remove the Drum unit fan OPC Fig 3 57 Assembling Note When assembling the Drum unit fan OPC place it so that the attached Label faces outwards Drum unit fan OPC Engine PCB ASSY Connector Left side Label ...

Page 163: ...o damage section A Fig 3 58 1 Tightening Note When tightening the screw slowly turn it counterclockwise in the direction to loosen the screw with your hand until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Taptite cup S M4x8 Hooks Side...

Page 164: ... turn the Roller holder ASSY to the direction of the arrow 1b Fig 3 59 2 Slide the Roller holder ASSY to the direction of the arrows 2a 2b and 2c in this order and remove it Fig 3 60 Paper feed frame unit Paper feed frame unit Roller holder ASSY Boss Lift arm Paper feed frame unit Roller holder ASSY 1a 1b 2a 2b 2c Front side Upper side Front side ...

Page 165: ... 61 2 Close the Front door unit ASSY Remove the cup S M3x6 Taptite screw and two bind B M3x10 Taptite screws 3 Open the Front door unit ASSY Slide the Paper feed frame unit in the direction of arrows 3a and 3b in this order and remove it Fig 3 62 Paper feed frame unit Taptite cup S M3x6 Taptite bind B M3X10 Taptite bind B M3X10 Engine PCB ASSY 3a 3b Front side ...

Page 166: ...ntial 3 57 4 Release the two Hooks to remove the PF CR harness holder Fig 3 63 5 Remove the Harness from the PF CR harness holder Fig 3 64 Harness PF CR harness holder PF CR harness holder Hook Hook Front side ...

Page 167: ...feed frame Fig 3 65 7 Release the Hook of the Separation roller bush to remove it Then remove the Separation roller drive shaft Fig 3 66 Taptite bind B M3X8 Taptite bind B M3X8 Taptite bind B M3X8 Paper feed frame PF plate Hook Separation roller bush Separation roller drive shaft Paper feed frame Upper side ...

Page 168: ...tuator and remove the Edge actuator spring Fig 3 67 9 Release the three Hooks to remove the T1 PE edge sensor PCB ASSY Fig 3 68 Edge actuator PE actuator Edge actuator spring Paper feed frame T1 PE edge sensor PCB ASSY Hook Hook Hook Upper side Upper side ...

Page 169: ... frame 2 Put the two harnesses above and T1 PE edge sensor harness through the PF CR harness holder and put them out of the hole on the Side frame L 3 Hold the PU lift up cam with a Screwdriver or the like so that it is push to the back side of the machine The section B shown in Fig 3 71 in the next page can be moved up and down by this operation which makes easy to assemble the lift arm Fig 3 69 ...

Page 170: ... A of the Lift arm goes down That makes easy to push the end of the Lift arm under the section B shown in Fig 3 71 Fig 3 70 2 Push up the section B of the Side frame L with the end section A of the Lift arm and place the section A under the section B Then put the section A into the space between the Hooks B and C inside the machine and assemble the Paper feed frame unit into the machine Fig 3 71 L...

Page 171: ...le moving the Paper feed frame unit to the left hand side turn the Separation roller of the Roller holder ASSY to align the section D of the Separation roller drive shaft with the section E of the Side frame L and put the section E into the section D Fig 3 73 Paper feed frame unit Gear Feed roller shaft TR Feed roller shaft TR C Front side Separation roller Roller holder ASSY Side frame L E D Fron...

Page 172: ...othly they may not be assembled correctly Reassemble them from the beginning of the procedure 8 Secure the screws in the order as shown in the figure below while the front door unit ASSY being closed 1 Tightening Note When tightening the screw slowly turn it counterclockwise in the direction to loosen the screw with your hand until you feel that the screw is a little dropped in the hole Then sligh...

Page 173: ...ig 3 76 2 Turn the Belt cleaner release ASSY upside down Remove the bind B M3x8 Taptite screw and then remove the SOL PCB sheet and Belt cleaner release sensor PCB ASSY Fig 3 77 Hook Hook Belt cleaner release ASSY Belt cleaner release sensor PCB ASSY SOL PCB sheet Belt cleaner release case Taptite bind B M3X8 Middle plate Front side Bottom of case ...

Page 174: ...lease sensor PCB ASSY Fig 3 78 8 24 THM HUM Sensor Holder ASSY 1 Disconnect the three Connectors CN2 CN3 CN11 from the Main PCB ASSY CN2 HL 4070CDW only CN2 CN3 CN11 Fig 3 79 Connector Belt cleaner release sensor PCB ASSY Main PCB ASSY HL 4050CDN 4070CDW HL 4070CDW only ...

Page 175: ...S M3x6 Taptite screw and then remove the THM HUM ground plate 4 Remove the four cup S M3x6 Taptite screws 5 Release the two Hooks to remove the THM HUM sensor holder ASSY Fig 3 81 Engine PCB ASSY Taptite cup S M3x6 Taptite cup S M3x6 Hook Hook THM HUM sensor holder ASSY Frame unit Left side THM HUM ground plate ...

Page 176: ... 82 2 Remove the cup B M3x8 Taptite screw and then remove the Release rack plate from the Release rack 3 Remove the Release rack spring from the Release rack plate Fig 3 83 Taptite cup B M3x8 Release rack plate Release rack Release rack spring Hook Release rack spring Frame unit Left side ...

Page 177: ...3x6 Taptite screw and then remove the Earth Fig 3 84 2 Disconnect the six connectors CN2 CN3 CN4 CN7 CN8 CN9 from the Engine PCB ASSY CN2 CN7 CN8 CN9 CN3 CN4 Fig 3 85 Front door unit ASSY Front door unit earth Taptite cup S M3x6 Engine PCB ASSY Frame unit Left side ...

Page 178: ...port rope from the Shaft Fig 3 86 4 Remove the Collar 3 from the Hinge shaft L and then remove the Hinge shaft L from the Hinge plate L Fig 3 87 Shaft Wire support rope Shoulder screw Front door unit ASSY Hinge shaft L Front door unit ASSY Collar 3 Frame unit Frame unit Right side Hinge plate L Left side ...

Page 179: ... door unit ASSY from Frame unit Fig 3 88 Assembling Note When assembling the Wire rope onto the Shaft on the main body be careful of the direction of Wire rope referring to the figure below Fig 3 89 Front door unit ASSY Collar 3 Hinge shaft R Frame unit Front side Shoulder screw Shoulder screw Shaft Shaft Wire rope Wire rope Hinge plate R ...

Page 180: ...n the Front door unit ASSY with the Hinge as shown in the figure below Fig 3 90 8 27 Harness Cover MP 1 Remove the cup S M3x6 Taptite screw and then remove the Harness cover MP from the Front door unit ASSY Fig 3 91 Front door unit ASSY Frame unit Harness cover MP Taptite cup S M3x6 Front door unit ASSY Hinge Hook Front side ...

Page 181: ...emove the five cup B M4x10 Taptite screws and one cup B M3x8 Taptite screw and then remove the Front door sub Fig 3 92 Taptite cup B M3x8 Taptite cup B M4x10 Taptite cup B M4x10 Front door sub Front door unit ASSY Left side Taptite cup B M4x10 ...

Page 182: ...ig 3 93 2 Remove the two bind B M3x8 Taptite screws and then remove the EL spring harness ASSY and EL electrode spring L R Fig 3 94 EL electrode spring cover ASSY Taptite bind B M3X8 EL electrode spring R EL electrode spring L EL spring harness ASSY white EL spring harness ASSY red Taptite bind B M3X8 Front door unit ASSY Front door unit ASSY ...

Page 183: ...0 Taptite screws Fig 3 95 2 Remove the two cup B M4x10 Taptite screws 3 Release the three Hooks to remove the Hook cover from the Front door unit ASSY Fig 3 96 Taptite cup B M4x10 Taptite cup B M4x10 Hooks Hook Hook cover Front door unit ASSY Taptite cup B M4x10 Taptite cup B M4x10 Front door unit ASSY Front door main ...

Page 184: ...e Hook cover Fig 3 97 5 Release the two Hooks to remove the Front door Main from the Front door unit ASSY Fig 3 98 Hook cover Front cover release button Button spring Front door unit ASSY Hooks Front door main Button spring Left side Right side Front cover release button Hooked Hooked ...

Page 185: ...Remove the Hook and Hook spring R from the MP unit ASSY in the same way Fig 3 100 Assembling Note When assembling the Hook spring be sure to assemble each of the Hook springs Left and Right onto the correct sides Left is longer silver one and Right is shorter black one MP unit ASSY Hook spring L Hook Hook shaft MP unit ASSY Left side Left side ...

Page 186: ... at an angle After insertion check that the cable is not at an angle CN29 CN31 CN32 CN30 CN33 CN35 CN34 CN38 CN40 CN42 CN41 CN43 CN39 CN36 CN37 CN28 CN27 CN26 CN25 CN24 CN23 CN22 CN21 CN19 CN18 CN20 CN17 CN16 CN15 CN14 CN13 CN12 CN11 CN6 CN10 CN5 CN1 CN2 CN3 CN4 CN7 CN8 CN9 Fig 3 101 2 Remove the five cup S M3x6 Taptite screws and then remove the Engine PCB ASSY from the Frame unit Fig 3 102 Engin...

Page 187: ...htly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver 3 Disconnect all the connectors from the Main PCB ASSY Note After disconnecting the flat cable s check that each cable is not damaged at its end or short circuited When connecting the flat cable s do not insert it at an angle After insertion check that the...

Page 188: ... cup S M3x6 Taptite screw and two screws for the parallel interface HL 4050CDN 4070CDW only and then remove the Main PCB ASSY as shown by arrows 4a and 4b Fig 3 105 Taptite cup S M3x6 Screws Main PCB ASSY Frame unit Left side 4a 4b ...

Page 189: ...ove the Waste toner sensor holder from the Middle plate Fig 3 106 2 Release the Hook to remove the Waste toner sensor cover from the Waste toner sensor holder Fig 3 107 Waste toner sensor holder Positioning pin Hook Waste toner sensor cover Waste toner sensor holder Middle plate Hook Hook Hook Middle plate 1a 1b 1b Figure of the front view Front side Left side ...

Page 190: ...e Waste toner sensor holder Fig 3 108 4 Disconnect the Connectors yellow and blue from each of the Waste toner sensors Fig 3 109 Waste toner sensor holder Waste toner sensor Waste toner sensor Connector blue Waste toner sensor Waste toner sensor Connector yellow Hooks Hooks Hook Hook Hook Waste toner sensor A view A ...

Page 191: ...s a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver 2 Remove the three cup S M3x8 Taptite screws from the front side of the Top cover ASSY Fig 3 111 Taptite cup B M4x14 Tightening torque 1 20 0 1 N m 1 Taptite cup B M4x14 Tightening torque 1 20 0 1 N m 1 Taptite cup S...

Page 192: ...SSY and the connector 6pin from the USB host relay PCB ASSY Note After disconnecting the flat cable s check that each cable is not damaged at its end or short circuited When connecting the flat cable s do not insert it at an angle After insertion check that the cable is not at an angle Fig 3 113 Hooks Hooks Top cover ASSY Top cover panel ASSY Flat cable Frame unit LCD panel PCB ASSY Connector 5pin...

Page 193: ...cover ASSY Fig 3 114 8 37 LCD Panel PCB ASSY 1 Remove the three bind B M3x8 Taptite screws and then remove the LCD panel PCB ASSY Fig 3 115 Top cover panel ASSY Taptite bind B M3X8 Taptite bind B M3X8 LCD panel PCB ASSY 1b 1a Top cover panel ASSY Taptite cup B M4x12 Taptite cup B M4x12 Top cover ASSY LCD panel PCB ASSY ...

Page 194: ...key printed ASSY from the Top cover panel ASSY Fig 3 116 8 39 Key Cap Up Down L R 1 Remove the Key cap up down L and R from the Top cover panel ASSY Fig 3 117 Rubber key printed ASSY Top cover panel ASSY Top cover panel ASSY Key cap down Key cap L Key cap R Key cap up ...

Page 195: ...ove the two bind B M3x8 Taptite screws and then remove the USB holder Fig 3 118 2 Remove the USB host relay PCB ASSY from the Top cover panel ASSY Fig 3 119 USB holder Top cover panel ASSY Taptite bind B M3X8 Top cover panel ASSY USB host relay PCB ASSY ...

Page 196: ...SSY while putting up the LCD panel ASSY Fig 3 120 2 Release the two Bosses of the Top cover ASSY from the LCD panel ASSY as shown in the figure below Then remove the LCD panel ASSY from the Top cover ASSY Fig 3 121 LCD panel ASSY LCD panel ASSY Top cover ASSY LCD stopper Pin Pin Top cover ASSY Boss Boss Boss Boss ...

Page 197: ... LCD panel ASSY Fig 3 122 8 42 Paper Chute 1 Remove the six cup B M4x12 Taptite screws 2 Release the nine Hooks to remove the Paper chute from the Top cover panel ASSY Fig 3 123 Taptite cup B M4x12 Taptite cup B M4x12 Hooks Hooks Hooks Top cover panel ASSY Paper chute LCD panel ASSY LCD stopper Pin Pin ...

Page 198: ...pper rubber from the Paper chute Fig 3 124 4 Release the two Pins of the Paper stopper at the right and left hand sides and remove the Paper stopper from the Paper chute Fig 3 125 Paper chute LCD stopper rubber Paper chute Pin Paper stopper ...

Page 199: ... the Top cover R Fig 3 126 8 44 Top Cover L ASSY Fig 3 127 Top cover L ASSY Taptite cup B M4x12 Top cover R Top cover L ASSY Earth spring Taptite cup B M3X6 Anti static brush Taptite cup B M3X6 Taptite cup B M3X6 Paper stack lever Paper stack lever Stack lever holder L Stack lever holder R ...

Page 200: ...om the Wireless LAN PCB ASSY Fig 3 128 2 Remove the cup S M3x8 Taptite screw 3 Release the three Hooks to remove the Wireless LAN holder from the Frame unit Fig 3 129 Wireless LAN PCB ASSY Connector Wireless LAN holder Taptite cup S M3x8 Hook Hooks Front side Front side Frame unit Frame unit ...

Page 201: ...Confidential 3 92 4 Release the Hook to remove the Wireless LAN PCB ASSY from the Wireless LAN holder Fig 3 130 Hook Wireless LAN holder Wireless LAN PCB ASSY ...

Page 202: ...d 1 piece from the front side and then remove the Scanner cover Fig 3 132 Assembling Note When assembling the Scanner cover secure the screws in the order of the numbers which are indicated on the Scanner cover Hook slope Hook slope Taptite cup S M3x8 Frame unit Taptite cup S M3x8 Scanner cover Taptite cup S M3x6 Taptite cup S M3x6 Taptite cup S M3x6 Taptite cup S M3x6 Frame unit Front side Front ...

Page 203: ...ven cup S M3x6 SR Taptite screws and then remove the four Scanner holders and Laser unit Fig 3 134 Assembling Note When assembling the Laser unit with the Scanner holders ensure to put the positioning boss of the Laser unit into the positioning hole referring to the figure above Laser unit Scanner holder Taptite cup S M3x6 SR Laser unit Scanner holder Frame unit Taptite cup S M3x6 SR Taptite cup S...

Page 204: ...x6 Taptite screws and then remove the Develop gear plate ASSY from the Frame unit Disconnect the Connector from the Develop drive motor ASSY Fig 3 136 Frame unit Rack gear 27 Develop drive motor ASSY Develop drive motor ASSY Connector Frame unit Taptite cup S M3x6 Develop gear plate ASSY Taptite cup S M3x6 Taptite cup S M3x6 Hook Hook Left side Left side Taptite cup S M3x6 Alum sheet frame 2 3 ...

Page 205: ...n remove the Gear guide holder from the Develop gear plate ASSY Note Since the gears on the Gear guide holder and the Coupling gears 50 on the Develop gear plate ASSY come off easily be careful not to lose them Fig 3 138 Taptite cup S M3x6 Taptite cup S M3x6 Develop drive motor ASSY Taptite cup S M3x6 Develop gear plate ASSY Taptite cup B M3x10 Develop gear plate ASSY Coupling gear 50 Gear guide h...

Page 206: ...r plate ASSY Fig 3 139 Assembling Note When assembling the Develop gear plate ASSY onto the Frame unit secure the screws in the order of the numbers which are indicated on the plate 5 6 1 3 4 7 2 Fig 3 140 Develop gear plate ASSY Friction cap Develop gear plate ASSY ...

Page 207: ...t to prevent them from going into the Develop gear plate ASSY Fig 3 141 If the Joint release lever is protruding from the Develop gear plate ASSY push the Joint release lever back into the inside of the Develop gear plate ASSY Fig 3 142 Develop gear plate ASSY Harness Flat cable Develop gear plate ASSY Joint release lever Left side Frame unit ...

Page 208: ...me after assembling the Develop gear plate ASSY and Flat cable Attach the Alum sheet frame so that it is aligned with the corner of the square hole as shown in the figure below Fig 3 143 Alum sheet frame Alum sheet frame Develop gear plate ASSY Corner of the square hole Flat cable ...

Page 209: ... plate which is fixed with a two sided adhesive tape Fig 3 144 2 Remove the three cup S M3x6 Taptite screws and then remove the Harness shield plate from the Frame unit Fig 3 145 Harness shield plate Engine insulation sheet Frame unit Taptite cup S M3x6 Harness shield plate Left side Left side Taptite cup S M3x6 Taptite cup S M3x6 ...

Page 210: ...e Fig 3 146 Assembling Note When assembling the Engine PCB plate make sure that the section A is caught on the Hook of the Drive frame unit ASSY Fig 3 147 Engine PCB plate Frame unit Engine insulation sheet Taptite cup S M3x6 Taptite cup S M3x6 Left side Engine PCB plate Hook Drive frame unit ASSY A ...

Page 211: ...removing the motor to replace it the gears may be out of phase When replacing the motor therefore be sure to phase the Gears 39 121 and then assemble the motor For the method how to phase the gears refer to the figure below Fig 3 149 Fig 3 149 Frame unit Taptite cup S M3x6 Drum drive motor 2 Taptite cup S M3x6 Drum drive motor 1 Left side Gears 39 121 Drum drive ASSY Gears 39 121 Align the mark on...

Page 212: ... slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver 7 Remove the bind S M3x6 Taptite screw and then remove the Drum phase sensor PCB ASSY 2 whose harness is longer from the Drum drive ASSY 8 Remove the Drum phase sensor PCB 1 whose harness is shorter in the same way Fig 3 151 Taptite bind S M3x6 Drum p...

Page 213: ... turn it counterclockwise in the direction to loosen the screw with your hand until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Taptite bind B M4x12 Tightening torque 1 20 0 1 N m 1 Taptite bind B M4x12 Tightening torque 1 20 0 1 N m 1...

Page 214: ...eed belt cleaner motor ASSY from the Drive frame unit ASSY Fig 3 153 Assembling Note Be sure to hook the harness of the Paper feed belt cleaner motor ASSY onto the Rib of the Frame L as shown in the figure below Fig 3 154 Paper feed belt cleaner motor ASSY Taptite cup S M3x6 Drive frame unit ASSY Taptite cup S M3x6 Rib Paper feed belt cleaner motor ASSY Drive frame unit ASSY Frame L ...

Page 215: ...and until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver 8 52 Develop Press Drive L ASSY 1 Remove the Pull up lever spring for L from the Hook of Develop press drive L ASSY Fig 3 156 Develop release sensor PCB ASSY Taptite cup B M3x8 Tigh...

Page 216: ... direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver 3 Remove the bind S M3x6 Taptite screw and then remove the Develop release motor ASSY from the Develop press drive L ASSY Fig 3 158 Develop press drive L ASSY Taptite bind S M3x6 Develop release motor ASSY Frame unit Taptite bind B M3X12 Tightening torque 0 80 0 1 N m 1 Develop press ...

Page 217: ...g is hooked is placed as shown in the figure below Fig 3 159 Catch the harness from the Laser unit onto the hook as shown in the figure below and then assemble the Develop press drive L ASSY Fig 3 160 Develop press drive L ASSY Pull up lever L Pull up lever spring for L Section where the spring is hooked Hook Harness from Laser unit ...

Page 218: ... ASSY Fig 3 161 2 Remove the Front cover interlock switch ASSY from the Develop press drive L ASSY Fig 3 162 Interlock switch holder spring Develop press drive L ASSY Interlock harness guide Develop press drive L ASSY Front cover interlock switch ASSY Interlock harness guide Interlock switch holder spring Hook A Hook B Hook B Hook A Hook C Hook C Hook D Hook D ...

Page 219: ... it counterclockwise in the direction to loosen the screw with your hand until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Frame unit Release drive holder Taptite cup B M3x10 Tightening torque 0 70 0 1 N m 1 Taptite cup B M3x10 Tighten...

Page 220: ...ote When tightening the screw slowly turn it counterclockwise in the direction to loosen the screw with your hand until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Frame unit Toner sensor PCB ASSY K TE NEW Taptite bind B M3X8 Tightenin...

Page 221: ...w For the method to arrange the harnesses refer to 7 Toner sensor PCB ASSY K Y M C TE NEW C M Y K Fig 3 165 Toner sensor PCB ASSY K TE NEW Toner sensor PCB ASSY Y TE NEW Toner sensor PCB ASSY M TE NEW Toner sensor PCB ASSY C TE NEW Mark Mark Mark Mark Engine PCB ASSY CN41 black CN40 yellow CN39 magenta CN38 cyan ...

Page 222: ... TE NEW Fig 3 166 Assembling Note Assemble the Toner sensor PCB ASSY TE NEW so that the Shutter of the New toner actuator is put into the sensor section of the Toner sensor PCB ASSY TE NEW Fig 3 167 Toner sensor PCB ASSY TE NEW LED holder Hook Hook Toner sensor PCB ASSY TE NEW Shutter New toner actuator Sensor section ...

Page 223: ...the Frame unit and then remove the New toner actuator from the Fame unit Fig 3 168 2 Remove the New toner actuator spring from the New toner actuator Fig 3 169 New toner actuator Hook New toner actuator spring Hook New toner actuator spring Hook Frame unit New toner actuator 1a 1b Left side Hook New toner actuator spring Hooked Hooked Hooked A ...

Page 224: ...rew with your hand until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Frame unit Side plate R ASSY Taptite cup S M3x6 Taptite cup S M4x8 Taptite cup S M3x6 Screw pan S P washer M4x8 DB Taptite cup S M3x6 Taptite cup B M4x12 Tightening t...

Page 225: ...um lock lever L from the Frame unit Fig 3 171 Assembling Note Assemble the Drum lock lever so that both Drum lock lever R and L are in the same direction Fig 3 172 Drum lock lever plate L ASSY Drum lock spring Drum lock lever L Screw bind M3x8 Frame unit Left side Drum lock lever L Drum lock lever R Assemble so that they are in the same direction Front side ...

Page 226: ... lock lever R from the Frame unit Fig 3 173 Assembling Note Assemble the Drum lock lever so that both Drum lock lever R and L are in the same direction Fig 3 174 Screw bind M3x8 Frame unit Drum lock lever R Drum lock lever plate R ASSY Front side Drum lock lever R Drum lock lever L Front side Assemble so that they are in the same direction ...

Page 227: ...ng to the specified torque with a screwdriver 2 Disconnect the eight connectors and flat cable from the Charge HVPS PCB ASSY Note When disconnecting the connectors they may be damaged if pulling the Charge HVPS PCB ASSY by force After disconnecting the flat cable s check that each cable is not damaged at its end or short circuited When connecting the flat cable s do not insert it at an angle After...

Page 228: ...rge HVPS PCB ASSY check that these four parts are complete and that they move smoothly Fig 3 177 When assembling the Charge HVPS PCB ASSY be careful not to catch the harness of the Air intake fan AIR in the Charge HVPS PCB ASSY Fig 3 178 Charge HVPS PCB ASSY Air intake fan AIR Caution HVPS charge head spring HVPS charge head HVPS DEV head HVPS DEV head spring Frame R ...

Page 229: ...n remove the Toner LED PCB from the Frame unit Fig 3 179 2 Release the two Hooks to remove the LED holder from the Toner LED PCB 3 Remove the other three Toner LED PCBs in the same way Fig 3 180 Toner LED PCB Screw pan S P washer M3x16 Frame unit Toner LED PCB Hook LED holder Hook Right side ...

Page 230: ...ser Unit Fan FU 1 Remove the Fuser unit fan FU from the Frame unit Fig 3 181 Assembling Note When assembling the Fuser unit fan FU place it so that the attached Label faces outwards Frame unit Fuser unit fan FU Right side Label ...

Page 231: ... 122 8 62 LVPS Fan PS 1 Remove the LVPS fan PS from the Frame unit Fig 3 182 Assembling Note When assembling the LVPS fan PS place it so that the attached Label faces outwards Frame unit LVPS fan PS Right side Label ...

Page 232: ...Intake Fan AIR 1 Remove the Air intake fan AIR from the Frame unit Fig 3 183 Assembling Note When assembling the Air intake fan AIR place it so that the attached Label faces outwards Air intake fan AIR Frame unit Right side Label ...

Page 233: ...0 insulation sheet from the PS PCB unit Fig 3 184 2 Remove the Power supply switch from the Belt gear plate ASSY by pushing the Hooks inwards Fig 3 185 LVPS insulation sheet LVPS V0 insulation sheet PS PCB unit Hook Hook Belt gear plate ASSY Power supply switch Right side Right side ...

Page 234: ...en tightening the screw slowly turn it counterclockwise in the direction to loosen the screw with your hand until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Frame unit Ground terminal Power inlet socket Taptite flat B M3x10 Tightening...

Page 235: ...it CN2 CN101 CN102 CN103 Fig 3 188 Assembling Note Assemble the LVPS insulation sheet so that the section A is in the position as shown in the figure below Fig 3 189 PS PCB unit A Frame unit PS PCB unit A LVPS insulation sheet LVPS insulation sheet PS PCB unit Frame unit LVPS insulation sheet ...

Page 236: ...ON OFF mark on the Power supply switch is aligned with the ON OFF mark imprinted on the Belt gear plate ASSY Fig 3 190 When assembling the PS PCB unit align it with the two Bosses on the Frame unit Fig 3 191 Belt gear plate ASSY Power supply switch Frame unit PS PCB unit Boss Boss ...

Page 237: ...t gear plate ASSY Fig 3 192 2 Remove the three cup B M4x12 Taptite screws and Screw cup M3x6 and then remove the Belt gear plate ASSY from the Frame unit Fig 3 193 Belt gear plate ASSY Hooks Harness holder 16AWG Hook Frame unit Taptite cup B M4x12 Screw cup M3x6 Taptite cup B M4x12 Belt gear plate ASSY Right side Right side ...

Page 238: ... When tightening the screw slowly turn it counterclockwise in the direction to loosen the screw with your hand until you feel that the screw is a little dropped in the hole Then slightly turn it clockwise in the direction to tighten the screw with your hand and tighten it according to the specified torque with a screwdriver Frame unit Taptite cup B M4x12 Tightening torque 1 20 0 1 N m 1 Connector ...

Page 239: ...Confidential 3 130 6 Remove the two Screws bind M3x5 and then remove the Belt unit drive motor from the Motor plate P Fig 3 196 Screw bind M3x5 Belt unit drive motor Motor plate P ...

Page 240: ... LT paper tray and remove the paper from the LT paper tray Fig 3 197 2 Release the two Hooks of the LT separation pad ASSY and then lift up the LT separation pad ASSY Note Be careful not to loose the LT Separation pad spring Fig 3 198 Hooks LT separation pad ASSY Front side LT paper tray Separation pad spring ...

Page 241: ...he Pins and remove the LT separation pad ASSY from the LT paper tray Fig 3 199 4 Remove the LT separation pad spring from the LT paper tray Fig 3 200 LT separation pad ASSY Pin Pin LT paper tray 3b 3a 3a Front side Front side LT separation pad spring LT paper tray LT separation pad spring ...

Page 242: ... Pinch roller holder cover LT from the LT paper tray Fig 3 201 7 Remove the Pinch roller holder spring from the Rib of the LT paper tray Fig 3 202 Taptite bind B M4x10 Taptite bind B M4x10 Front side LT paper tray Hook Hooks Hook Hook Pinch roller holder cover LT LT paper tray Front side Pinch roller sub ASSY Pinch roller holder spring Rib ...

Page 243: ...Confidential 3 134 8 Release the Pin to remove the Pinch roller sub ASSY from the LT paper tray Fig 3 203 LT paper tray Pinch roller sub ASSY Pin Pin Pinch roller sub ASSY ...

Page 244: ...over Rear 1 Remove the four Shoulder screws from the LT cover rear Fig 3 204 2 Release the two Pins on the bottom to remove the LT cover rear Fig 3 205 Shoulder screw Shoulder screws Shoulder screw LT cover rear LT cover rear Pin ...

Page 245: ...e the three Shoulder screws from the LT cover left Fig 3 206 2 Release the two Hooks on the upper side and the two Hooks on the back side to remove the LT cover left Fig 3 207 Shoulder screw Shoulder screws LT cover left LT cover left Hooks Hooks ...

Page 246: ...ee Shoulder screws from the LT cover right Fig 3 208 2 Release the two Hooks on the upper side and the two Hooks on the back side to remove the LT cover right Fig 3 209 LT cover right Shoulder screw Shoulder screw Shoulder screw LT cover right Hooks Hooks ...

Page 247: ...ASSY 1 Disconnect the all connectors from the LT relay PCB ASSY CN1 CN3 CN4 CN6 CN5 CN2 Fig 3 210 2 Remove the cup S M3x6 Taptite screw and then remove the LT relay PCB ASSY Fig 3 211 LT relay PCB ASSY LT relay PCB ASSY Taptite cup S M3x6 ...

Page 248: ...remove the Solenoid holder ASSY Fig 3 212 2 Remove the Screw flanged M3X3 5 and then remove the LT solenoid ASSY and Solenoid spring MP from the LT solenoid holder Fig 3 213 Solenoid holder ASSY Taptite cup S M3x6 Screw flanged M3x3 5 Solenoid spring MP LT solenoid ASSY LT solenoid holder ...

Page 249: ...om the Fittings shaft Fig 3 214 9 8 Cassette Switch ASSY 1 Remove the three cup S M3x6 Taptite screws and release the Hook Then remove the LT tray guide left rear ASSY Fig 3 215 Collar 6 Collar 6 Fittings shaft Taptite cup S M3x6 LT tray guide left rear ASSY Hook ...

Page 250: ...ssette actuator and Cassette actuator spring Fig 3 216 3 Release the two Hooks to remove the Cassette switch ASSY Fig 3 217 Hook Cassette actuator spring LT tray guide left rear ASSY Hooks Cassette actuator LT tray guide left rear ASSY Cassette switch ASSY ...

Page 251: ...r and LT beam F from the LT frame unit Fig 3 218 2 Remove the Retaining ring E4 from the F roller shaft LT and remove the Gear 24 LT and FR bush Fig 3 219 Taptite cup S M3x6 LT front cover LT frame unit Taptite cup S M3x6 Taptite cup S M3x6 F roller shaft LT Retaining ring E4 FR bush Gear 24 LT LT beam F Front side Front side ...

Page 252: ...ft spring from the Hook of the Lift lever A 5 Remove the F roller shaft LT from the LT frame unit by pushing right 5a pull left end forward 5b and remove leftwards 5c Fig 3 221 F roller shaft LT FR bush TR Retaining ring E3 Right side LT frame unit F roller shaft LT 5a 5c 5b Front side Lift spring Hook Lift lever A Lift lever A ...

Page 253: ...nd B of the Lift lever B and align the section B with the Lever of the Paper feed holder Fig 3 222 6 Remove the two cup S M3x6 Taptite screws from the LT frame unit Fig 3 223 Taptite cup S M3x6 LT paper feed frame unit LT frame unit Right side Lift lever A Lift lever B B A F roller shaft LT Paper feed frame unit Paper feed holder Rib Lever ...

Page 254: ...45 7 Remove the Gear 20A from the Drive unit by releasing the Hook Fig 3 224 8 Remove the Gear 33 from the Drive unit by releasing the Hook Fig 3 225 Drive unit Gear 20A Hook Gear 33 Drive unit Hook Left side Left side ...

Page 255: ...from the Spring hook and remove the Gear 46 55 from the Drive unit by releasing the Hook Fig 3 226 10 Remove the Gear 46 LT from the Drive unit Fig 3 227 Drive unit Gear 46 55 Extension spring LT Spring hook Hook Drive unit Gear 46 LT Left side Left side ...

Page 256: ... screw from the LT frame L unit Fig 3 228 12 Turn the LT frame unit upside down 13 Remove the two cup S M3x6 Taptite screws from the LT frame unit Fig 3 229 Taptite cup S M3x6 Taptite bind B M4x10 LT frame L unit Taptite cup S M3x6 LT frame unit Left side Bottom side LT paper feed frame unit ...

Page 257: ... the correct way up 15 Remove the two cup S M3x6 Taptite screws from the LT beam R Fig 3 230 16 Remove the cup S M3x6 Taptite screw from the LT frame unit Fig 3 231 Taptite cup S M3x6 LT beam R Taptite cup S M3x6 LT frame unit Back side Left side ...

Page 258: ...Confidential 3 149 17 Remove the LT paper feed frame unit from the LT frame unit by 17a and 17b Fig 3 232 LT paper feed frame unit LT frame unit Front side 17a 17b ...

Page 259: ...Main PCB For a spare parts ROM 1 8 Mbyte Sub firmware PCL PS Emulation Font data What you need to prepare 1 Computer Windows XP 2000 or later Create a hl4000 folder on the C drive for example 2 HL 4040CN 4050CDN 4070CDW target machine 3 A USB flash memory drive 4 The Firmware Main firmware LZ0827_A djf Sub firmware PCL PS LZ0828_A djf LZXXXX_ djf LZXXXX First six digits are a parts number of the f...

Page 260: ...0124 South Africa HL 4040CN_00124 pjl HL 4050CDN_00124 pjl 7C 00131 Chile Argentina HL 4050CDN_00131 pjl 83 00142 Brazil HL 4040CN_00142 pjl 8E 00148 Russia HL 4040CN_00148 pjl HL 4050CDN_00148 pjl 94 00157 Pan Nordic HL 4040CN_00157 pjl HL 4050CDN_00157 pjl HL 4070CDW_00157 pjl 9D 00160 France Belgium Netherlands HL 4040CN_00160 pjl HL 4050CDN_00160 pjl HL 4070CDW_00160 pjl A0 00165 Spain HL 4040...

Page 261: ...e USB direct interface on the front of the machine Fig 4 1 3 When the machine has recognized the USB flash memory drive the Checking device Please wait message appears on the LCD 4 Direct Print is displayed on the first line of the LCD message and the file names will be shown on the second line of the LCD Press the or button to choose the necessary program file and press the OK button 5 Program Up...

Page 262: ... configured on your PC To prevent many virtual USB devices from being configured use the unique driver installation procedure described below that enables your PC to identify terminals via one single virtual USB device Note Once this installation procedure has been carried out for a PC no more driver software installation will be required for that PC to identify machines If the Brother Maintenance...

Page 263: ...warning message of WHQL appears three times Click Next to proceed 7 If the device driver is successfully installed the following message screen appears Click Finish to return 8 Connect the machine to your PC using the USB cable ...

Page 264: ...ial 4 6 9 The following screen appears indicating the detection of new hardware device by the system Select No not this time And click Next 10 Select Install the software automatically Recommended and click Next ...

Page 265: ...Confidential 4 7 11 Alert warning message of WHQL appears Click Continue Anyway to proceed ...

Page 266: ...8 12 Repeat the steps from 9 to 11 three times and then complete its installation 13 If the Brother Maintenance USB Printer driver is successfully installed the following message screen appears Click Finish to return ...

Page 267: ...rite the firmware Main firmware LZ0827_A upd Sub firmware PCL PS LZ0828_A upd LZXXXX_ upd LZXXXX First six digits are a parts number of the firmware Alphabet representing the revision of the firmware 1 Check that appears on the LCD If not turn the power switch of the machine off Then turn it on while pressing the Go and Cancel buttons at the same time 2 Double click the FILEDG32 EXE to start The f...

Page 268: ...Input Information from Menu Select the applicable model name 4 Check the port USB that the machine is connected through and click Serial No in the lower box Enter the serial number the last nine digits of the machine into the box on the right hand side The serial number is shown in the window and check that it is correct Click the OK button Note Refer to Appendix 3 to know how to read the serial n...

Page 269: ...me 2 Press the or button to choose Color Correction 3 Press the OK button to the next menu level Press the or button to choose Auto Regist Press the OK button 4 Auto Regist Registration appears on the LCD and then press the OK button 5 Registration OK appears on the LCD and press the OK button to start ...

Page 270: ...der on the C drive for example 2 HL 4040CN 4050CDN 4070CDW target machine 3 A USB flash memory drive 4 The Firmware Engine firmware LZ0833_A djf LZXXXX_ djf LZXXXX First six digits are a parts number of the firmware Alphabet representing the revision of the firmware Procedures Rewriting the firmware Engine firmware Note Make sure that the USB flash memory drive has enough space to save the program...

Page 271: ...s Go appears on the LCD Press the OK or Go button to start Program Updating Do not turn OFF message appears on the LCD with Data LED blinking while rewriting the firmware DO NOT turn off the machine 6 After the completion of the firmware rewriting Direct Print is displayed on the first line of the LCD message and the file names will be shown on the second line of the LCD again 7 Remove the USB fla...

Page 272: ...rate appears on the LCD and then press the OK button 5 Calibrate OK appears on the LCD and press the OK button to start Performing the Auto Registration 1 Press any of the Menu buttons OK or Back to resume 2 Press the or button to choose Color Correction 3 Press the OK button to the next menu level Press the or button to choose Auto Regist Press the OK button 4 Auto Regist Registration appears on ...

Page 273: ...nance mode functions listed in the next page press the or button to display any function code on the LCD Then press the OK button 1 2 How to Enter the End User accessible Maintenance Mode Basically the maintenance mode functions listed in the next page should be accessed by service personnel only However you can allow end users to access some of these under the guidance of service personnel by pho...

Page 274: ...ut of EEPROM Log 1 4 10 5 14 45 USB Transfer Speed Change in the PictBridge Mode 1 4 11 5 15 66 Adjustment of Color Registration 1 4 12 5 16 67 Paper Feeding and Ejecting Test 1 4 13 5 18 72 Sensitivity Adjustment of Density Sensor Don t use 1 4 14 5 18 75 Sensitivity Adjustment of Registration mark Sensor 1 4 15 5 19 77 Printout of Maintenance Information 1 4 16 5 21 78 Operational Check of Fans ...

Page 275: ...gs These will be initialized Worker Switch Refer to APPENDIX 1 These will not be initialized Function settings except User switches Items except the factory default settings Languages Reprint Interfaces LAN area Network settings PCL core area Emulation settings These will be initialized Operation lock of the control panel Password All of these will be initialized These will not be initialized Oper...

Page 276: ...rsonnel to check the print quality Operating Procedure 1 Press the or button to display MAINTENANCE 09 on the LCD in the initial stage of the maintenance mode Then press the OK button 2 Upon completion of test pattern printout the machine returns to the initial stage of the maintenance mode The figure below shows a test pattern that is printed Fig 5 1 ...

Page 277: ...ker switch number 3 Press the or button to select the desired number from the worker switch numbers Then press OK button 4 The following appears on the LCD 5 Enter the desired number on the Selector 1 by pressing button as 1 or button as 0 6 The cursor moves to the right onto the Selector 2 Repeat to enter the desired number as described step 5 until the modification for the desired worker switche...

Page 278: ...ecified Operating Procedure 1 Press the or button to display MAINTENANCE 11 on the LCD in the initial stage of the maintenance mode Then press the OK button The machine displays PRINTING on the LCD 2 The machine prints out the configuration list as shown below 3 Upon completion of printing the machine returns to the initial stage of the maintenance mode Fig 5 2 ...

Page 279: ... OK button 2 Each time you press the Go button the LCD cycles through the displays as shown below 3 Press Cancel button in any process of the display cycle The machine returns to the initial stage of the maintenance mode Backlight Orange lighting Data LED Orange blinking Direct Print LED Blue blinking Backlight Red lighting Data LED Orange blinking Direct Print LED Blue blinking Backlight Green li...

Page 280: ...below The LCD shows the corresponding number in decimal notation each time a button is pressed Check that the displayed number is correct by referring to the illustration below If a button is pressed out of order the machine displays the INVALID OPERATE on the LCD To return to the status ready to accept button entry for operational check press the Cancel button 3 After the last number button is pr...

Page 281: ...PICT Ver1 00 PictBridge version information B0608071049 5708 Boot program creation date check sum information U0612271600 7B0A Main firmware creation date check sum information D0611301115 E6C3 Demo firmware creation date check sum information P0612271602 BD40 Sub firmware PCL PS creation date check sum information How to display the check sum information Terms displayed with have the check sum in...

Page 282: ... initial stage of the maintenance mode Note To terminate this operation press the Cancel button The machine returns to the initial stage of the maintenance mode For the DX model HL 40450CDN 4070CDW pressing the Reprint button allows you to implement duplex demo printing 1 4 8 Drum Unit Cleaning Function code 31 Function This function allows you to remove the dust attached on the surface of the exp...

Page 283: ... RC RM RA PO MP registration front sensor MP PE sensor Front cover Back cover T1 registration front sensor Registration rear sensor Paper eject sensor Paper detected not detected Paper detected not detected Front cover closed open Back cover closed open Paper not detected detected Paper not detected detected Paper not detected detected NK NY NM NC KC YC MC CC Toner sensor K NEW Toner sensor Y NEW ...

Page 284: ...gh the registration sensor open the front cover or the back cover remove the toner cartridge jam paper at the paper outlet insert paper from the MP and load trays etc 4 Press the Cancel button to return the machine to the initial stage of the maintenance mode Location of sensors Fig 5 5 Toner sensor K TE Toner sensor Y TE Toner sensor M TE Toner sensor C TE Paper feed frame unit T1 PE edge sensor ...

Page 285: ... LT sensor LT tray guide left rear ASSY THM HUM sensor THM HUM sensor holder ASSY Front cover Develop press drive L ASSY Back cover Registration mark sensor 1 Fuser unit Paper eject sensor Density sensor Transfer HVPS PCB unit Waste toner sensor 1 Waste toner sensor 2 Waste toner sensor holder LT plate up detection sensor LT PE sensor Belt unit temperature sensor LT connector Registration mark sen...

Page 286: ...ne starts to print the EEPROM log The terms of EEPROM logs on the LCD are as follows LCD Description E2PDUMP ENGN ALL Print all EEPROM logs of the Engine PCB One page is printed E2PDUMP MAIN TOP Print top 1Kbyte EEPROM logs of the Main PCB One page is printed E2PDUMP MAIN BTM Print end 1Kbyte EEPROM logs of the Main PCB One page is printed E2PDUMP MAIN ALL Print all EEPROM logs of the Main PCB 16 ...

Page 287: ... will appear on the LCD 2 Press the OK button Then select the required function by pressing the or button and press the OK button 3 The machine returns to the initial stage of the maintenance mode Memo Users can change the USB transfer speed with the easier panel operation than the above The operating procedure is as follows 1 Press the Go and buttons at the same time while the machine is in the r...

Page 288: ...ion given below REGISTRATION TONER EMPTY color Replace the empty toner cartridge and then conduct the auto adjustment of color registration again REGISTRATION LOAD size PAPER Replenish paper of the size specified in the display on the tray and then conduct the auto adjustment of color registration again In the color field the toner color of which cartridge becomes empty is displayed In the size fi...

Page 289: ...on to display that numeric value and then press the Go button 6 In the same way enter the numeric value of the pattern 2 3 7 8 and 9 7 When you enter the numeric value of the pattern 9 Yellow Right SET REGISTRATION COMPLETED is displayed When you press the Cancel button the machine returns to the initial stage of the maintenance mode Color registration adjustment chart Fig 5 8 ...

Page 290: ...inting from Tray 2 SELECT MP DX Continuous two sided printing from MP Tray 3 The PAPER FEED TEST appears on the LCD The selected test printing is started and the grid pattern is printed 4 To return the machine to the initial stage of the maintenance mode press the Cancel button Note The test printing is stopped until there is no paper in a tray Press the Cancel button to stop if you check the pape...

Page 291: ...LT ON Adjust the sensitivity of the registration mark sensor when the belt unit is operated This adjustment is the same as the operation before the color registration Operating Procedure 1 Press the or button to display MAINTENANCE 75 on the LCD in the initial stage of the maintenance mode Then press the OK button REGI SENS ADJUST appears on the LCD 2 Press the or button to select the appropriate ...

Page 292: ...n During the 2 adjustment LCD Description Solution REGI_L_SENS XXX REGI_R_SENS OK Check result of the surface of the belt unit within the detectable range of the left registration mark sensor REGI_L_SENS OK REGI_R_SENS XXX Check result of the surface of the belt unit within the detectable range of the right registration mark sensor REGI_L_SENS XXX REGI_R_SENS XXX Check result of the surface of the...

Page 293: ...his Operation logs of the following sensors located in the paper path KO Edge sensor MN Registration front sensor RS Registration rear sensor Engine Sensor Log EJ Paper eject sensor Current Previously Used The number of printed pages of the current toner cartridge and the previous toner cartridge on each color Current Waste Toner The number of printed pages of the current waste toner box Developin...

Page 294: ...r button to display MAINTENANCE 78 on the LCD in the initial stage of the maintenance mode Then press the OK button 2 Press the Go button to check the next term For operation check spin or stop fans actually on each term Fig 5 10 3 Press Cancel button in any process of the display cycle The machine returns to the initial stage of the maintenance mode Note If the air intake fan AIR error occurs the...

Page 295: ...Confidential 5 23 Location of fans Fig 5 12 Fuser unit fan FU Air intake fan AIR LVPS fan PS Drum unit fan OPC Exhaust Intake ...

Page 296: ...rom the MP DX_PG X X Number of pages picked up from the DX A4 LTR X X Number of A4 Letter size sheets picked up LG A4L X X Number of LEGAL A4 LONG size sheets picked up B5 EXE X X Number of B5 Executive size sheets picked up ENVLOP X X Number of envelopes picked up A5 X X Number of A5 size sheets picked up OTHER X X Number of other size sheets picked up CTN_CH X X Number of times the Cyan toner ca...

Page 297: ...IAS X X Magenta developing bias voltage YDEV_BIAS X X Yellow developing bias voltage KDEV_BIAS X X Black developing bias voltage TTL_JAM X O Total number of jams TR1_JAM X O Number of jams that occurred at the T1 TR2_JAM X O Number of jams that occurred at the LT MP_JAM X O Number of jams that occurred at the MP DX_JAM X O Number of jams that occurred at the DX IN_JAM X O Number of jams that occur...

Page 298: ...et with inputting the password 2783 1 Display the maintenance information you wish to reset 2 Press the or button to set the first password as 2 and then press the OK button 3 Again the maintenance information is displayed Press the or button to set the second password as 7 the thrid password as 8 and the last one as 3 in the same way 4 Upon completion of password input correctly the maintenance i...

Page 299: ...to the initial stage of the maintenance mode Note Ignore all of the panel operation during the developing bias voltage correction If an error occurs during the developing bias voltage correction the following error message appears Press the Go button to clear the error and then the machine returns to the initial stage of the maintenance mode Fig 5 13 If an error except for the developing bias volt...

Page 300: ...wo buttons when turning the machine on Panel Operation Function OK Back Flash Rom Updates Mode UPD file Model classification is not available Don t use OK Not Used Go Back Engine Non startup Mode Line Test Mode Don t use OK HVPS Check Mode Don t use Go OK Not Used Go Cancel Flash Rom Updates mode UPD file Model classification is available Engine Non startup Mode This mode is to start up the machin...

Page 301: ...EANING COMPLETE appears on the LCD 5 Press the Cancel button so that the machine returns to the ready state Pressing the two buttons while the front cover is opened Panel Operation Function Reprint Cancel Develop roller counter reset mode Refer to 2 2 Develop Roller Counter Reset Function on this chapter Cancel Fuser Motor Speed Adjustment Mode Fuser Motor Speed Adjustment Mode The problem such as...

Page 302: ... when the front cover is open 2 Reset Parts Life appears on the LCD Press the or buttons to select the appropriate toner cartrige and then press the OK button LCD Description B TNR S Reset the develop roller counter of standard black toner cartridge B TNR H Reset the develop roller counter of high capacity black toner cartridge C TNR S Reset the develop roller counter of standard cyan toner cartri...

Page 303: ...ing information supporting the following 18 languages ENG FRE GER DUT ITA SPA NOR SWE DAN POR FIN CZE POL HUN RUS BUL ROM SLV Memo The descriptions printed in Printer Settings vary depending on the countries There are some terms printed on the maintenance information only Function code 77 in the maintenance mode Fig 5 14 Operating Procedure 1 Press the OK button three times when the machine is in ...

Page 304: ...irmware version PictBridge Program Version RAM SIZE Mbyte 2 Maintenance information 1 Consumable information The printable pages remained for the consumable part is indicated Also the percentage of life remained over the total printable pages is indicated in numerical value and bar graph A sample indication PF Kit MP is as follows From the top left the consumable part name the number of printable ...

Page 305: ...inted continuous printing is 4 6 Using these figures the page counter is calculated as follows Page counter based on the number of drum rotations Number of drum rotations for the first page printed Number of drum rotations per one page for the second or later page printed x Number of pages in continuous printing 1 27 The number of drum rotations per one page continuous printing Example Starts to p...

Page 306: ...y state Continuous printing Page counter based on the number of belt rotations Pages 1 page job 3 6 0 63 x 1 1 1 25 2 88 2 pages job 3 6 0 63 x 2 1 1 25 3 38 18 pages job 3 6 0 63 x 18 1 1 25 11 45 If you leave the machine without printing for a long time the number of belt rotations is increasing because the developing bias voltage correction and the color registration are performed If you print ...

Page 307: ...Paper Jams The number of paper jam occurrence in each of the Tray1 Tray2 MP tray Duplex tray Inside and Rear For the Duplex tray the number of paper jam occurrence is printed only for the models supporting the Duplex tray and it is not printed for HL 4040CN The paper jam occurs when the machine is turned ON is not counted The maximum count for each item is 65535 times Error History The error histo...

Page 308: ...e OK button 6 The machine displays Setting Lock Password XXXX on the LCD Press the or button to enter the value of the total printed pages four digits which has been checked in Step 3 If the total printed pages do not reach four digits the password is the value which 0 is entered into the higher digit s Ex If the total pages are 12 the password is 0012 7 Enter the first digit and press the OK butt...

Page 309: ...P488 TP489 TP490 R229 10k R230 10k 3 3V 3 3V 3 3V U12 UPD800419F1 RSTICN AE2 EXINTN0 H3 EXINTN1 PF03 F4 EXINTN2 PD09 F2 DREQN PD06 G2 DATA00 AA1 DATA01 Y3 DATA02 Y2 DATA03 Y1 DATA04 V2 DATA05 V1 DATA06 U1 DATA07 V3 DATA08 W3 DATA09 W2 DATA10 W1 DATA11 V4 DATA12 U3 DATA13 U2 DATA14 T4 DATA15 T1 SDBKUPN AC23 DIMMD00 A21 DIMMD01 D20 DIMMD02 B20 DIMMD03 A20 DIMMD04 A25 DIMMD05 A24 DIMMD06 A23 DIMMD07 ...

Page 310: ...3 3V R127 R127 33 33 1 3D 1 3D SD_ADR 12 0 SD_ADR 12 0 1 1C 1 1C SD_D 63 0 SD_D 63 0 SGND SGND SGND SGND R99 R99 100 100 SGND 3 3V C66 C66 C104 C104 R122 R122 33 33 7C 1 3E 7C 1 3E SD_BA1 SD_BA1 R131 R131 0 TP175 TP175 TP90 TP90 1 3C 1 3C SD_CLK0 SD_CLK0 7C 1 3E 7C 1 3E SD_BA0 SD_BA0 R125 R125 33 33 TP97 TP97 TP172 TP172 TP131 TP131 R126 R126 33 33 7D 1 3E 7D 1 3E SD_CAS_N SD_CAS_N 7D 1 3E 7D 1 3E...

Page 311: ...P232 TP208 TP195 TP224 TP196 TP222 TP206 TP207 TP197 TP231 TP216 U6 MR27V12850J 034TN CE 24 OE 27 BYTE 1 A0 23 A1 22 A2 21 A3 20 A4 19 A5 18 A6 17 A7 16 A8 10 A9 9 A10 8 A11 7 A12 6 A13 5 A14 4 A15 3 A16 2 A17 15 A18 14 A19 11 A20 13 A21 12 A22 36 VCC37 37 VCC38 38 VSS25 25 VSS26 26 VSS47 47 VSS48 48 D0 28 D1 30 D2 32 D3 34 D4 39 D5 41 D6 43 D7 45 D8 29 D9 31 D10 33 D11 35 D12 40 D13 42 D14 44 D15...

Page 312: ... 99 GPIO2 nLED3 100 EEDIO GPO3 67 EECLK GPO4 69 nEECS 68 VDD_REF 8 VSS_REF 11 VDD_PLL 7 VSS_PLL 4 VDD_CORE3 3 VDD_CORE65 65 GND_CORE1 1 GND_CORE66 66 VDD_A81 81 VDD_A85 85 VDD_A89 89 REV VDD_A 91 VSS_A77 77 VSS_A80 80 VSS_A86 86 VSS_A88 88 REV VSS_A 90 VREG 2 VDD_IO20 20 VDD_IO28 28 VDD_IO35 35 VDD_IO42 42 VDD_IO48 48 VDD_IO55 55 VDD_IO61 61 VDD_IO97 97 GND_IO19 19 GND_IO27 27 GND_IO34 34 GND_IO41...

Page 313: ...G_STATUS C67 C103 C203 C104 SGND C111 C100 10V 6 3 10CE101FS 3 3V 3 GND 1 5D VIDEO3_N C103 C104 SGND FG3 SGND 3 3V C7 C101 For EMI 1 5D VIDEO2_P R12 10k R3 0 1608 1 5V SGND 1 5C ENG_RST_N R37 100 For EMC 5 COMMAND 3 3V SGND D4 RB751V 40 SGND RTC1 5V TP448 FCT 5 0V C116 C101 SGND SGND C190 C104 R44 10k R88 0 1608 CN4 Engine 1 BD0n SGND SGND SGND 1 4C ENG_CMDREQ_N 1 3D LASER_BD1_N TP15 FG2 R36 10k 6...

Page 314: ...33NN03S 100MHz 3 2BANK of X16 SDRAM 10 Pin name Buffer Type TOPOLOGY LAN MA 12 0 SDCSN1 TDBIAC33NN09 DIMM SL4C 6mA Output Buffer 3 3V 12mA 0 SDRAM ROM1 25MHz 3 2BANK of X16 SDRAM 0 b Local BUS LAN Main ASIC R SDRAM Main ASIC I O Buffer 3 3V 3mA 50k Pull up 5MHz 33 SL4C 6mA 33 Output Buffer 3 3V 12mA Pin name 0 TDOPAC33NN12 Main ASIC LAN I O Buffer 3 3V 3mA 50k Pull up CDCC_INTn Main ASIC Main ASIC...

Page 315: ... 33 R95 1k For ESD R335 0 1608 R333 0 1608 R14 0 1608 R11 0 1608 R151 0 1608 R127 10k R343 47k R342 47k R102 47k R154 47k R153 47k R150 47k R126 4 7k R105 10k R106 10k R147 10k R142 10k R92 47 R104 47k R118 47k R100 100 R10 0 1608 R6 0 R149 47k R117 10 U8 TMP92FY23FG X1 75 X2 73 P00 D0 23 P01 D1 24 P02 D2 25 P03 D3 26 P04 D4 27 P05 D5 28 P06 D6 29 P07 D7 30 P10 D8 31 P11 D9 32 P12 D10 33 P13 D11 3...

Page 316: ...ND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND SGND 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V A3 3V A3 3V 5V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 3V 3 ...

Page 317: ...FAN 24V_FAN 24V_FAN 24V_FAN 5V 24V_FAN 24V_FAN TP73 TP75 TP74 TP76 TP77 TP78 TP79 TP81 TP80 TP86 TP87 TP88 TP84 TP83 TP82 TP85 TP193 TP194 TP195 TP196 TP197 TP198 TP199 TP186 TP187 TP188 TP189 TP190 TP191 TP192 TP165 TP166 TP167 TP168 TP170 TP171 TP172 TP169 TP173 TP174 TP175 TP176 TP177 TP178 TP179 TP180 TP181 TP182 TP183 TP184 TP185 TP203 TP204 TP207 TP211 TP214 TP217 TP218 TP210 TP219 TP220 TP2...

Page 318: ... C28 C104 50V 1608 C45 C104 50V 1608 C79 C102 for ESD C43 C102 for ESD C178 C102 for ESD C33 C224 10 B 3216 50VDC C22 C104 C38 C104 C29 C104 C60 C101 for ESD C56 C101 for ESD C80 C101 for ESD C217 C101 for ESD C48 C104 C49 C103 1608 50VDC C30 C106 2012 C40 C104 4 LOCK CN16 CLN MTR 1 LD CN22 DEV MTR 1 LD TP96 TP92 TP90 TP94 TP89 TP93 TP91 TP95 TP279 TP283 TP230 TP231 TP229 TP257 TP258 TP256 TP238 T...

Page 319: ...EN CN10 T1PE PEDG 1 T1_PE_SEN CN9 REG R 1 REG_R_SEN 3 WST_TN_SEN B6B PH K Y LF SN YELLOW 6 WST_TN_SEN2 B6B PH K E LF SN BLUE 6 FUSER_THM2 4 FUSER_THM1 CN32 1 EJECT_SEN CN34 DEVREL SEN 1 DEVREL_SEN 5 TH3_SEN 3 REG_MARK_SEN1 7 TH2_SEN 8 LED_CUR 10 VO2 4 LED_VCC2 3 MP_REG_F_SEN CN7 MP REGF PE 1 MP_PE_SEN 292161 2 2 0V CN35 TH HU SEN 1 5V 3 0V 2 24RET CN19 LT 1 VCC24LPS 2 0V 2 0V 2 LED VCC 2 0V 2 0V 2...

Page 320: ...Confidential 6 12 Charge High voltage Power Supply PCB Circuit Diagram 1 4 ...

Page 321: ...Confidential 6 13 Charge High voltage Power Supply PCB Circuit Diagram 2 4 ...

Page 322: ...Confidential 6 14 Charge High voltage Power Supply PCB Circuit Diagram 3 4 ...

Page 323: ...Confidential 6 15 Charge High voltage Power Supply PCB Circuit Diagram 4 4 ...

Page 324: ...Confidential 6 16 Transfer High voltage Power Supply PCB Circuit Diagram 1 2 ...

Page 325: ...Confidential 6 17 Transfer High voltage Power Supply PCB Circuit Diagram 2 2 ...

Page 326: ...Confidential 6 18 Low voltage Power Supply PCB Circuit Diagram 100V ...

Page 327: ...Confidential 6 19 Low voltage Power Supply PCB Circuit Diagram 200V ...

Page 328: ...GND HV_DEV_PWM4 1 A3 3V 3 3V A3 3V 3 3V 5VI GND BD1 3 3V GND 3 3V TR E B512231 TR B LD PCB LD 1 5 PD TR B 1 PD TR E 5 LD GND E2P_SDA E2P_SCL LVDS receiver SN65LVDS32DR B512251 el_current heat_thm2 3 3V SEN_LED_ON3 Rmark_LED_VCC PS_FAN Fuser_FAN_HIGH to CPU GPIO NC WST_TN 3 1 0V LED VCC WST_TN CN6 15 3 3V 3 3V 3 3V 3 3V 3 3V 6 8V 6 8V CN5 24V 24V PGND PGND PGND 1 6 S15B PASK 2 S06B PASK 2 CN23 GND ...

Page 329: ... STATUS COMMAND STSREQ_n VSYNC_n CMDREQ_n CMDRDY_n E_RESETn CN4 1 10 BD0n BD1n 3 3V CPU USB HOST HS_D FS_D HS_D FS_D from ENGINE PCB to LD PCB MAIN ASIC CN12 CN7 16 GND GND GND GND 1 7 GND B7B PASK 1 from ENGINE PCB EEPROM CLK1 CLK2 RASn CASn BA0 BA1 50MHz CKE 100MHz RASn CASn BA0 BA1 DQM 7 0 DQM 7 0 CS0n DATA 63 0 ADR 12 0 CS0n CS1n CS2n CS1n CS2n 50MHz 50MHz 50MHz CLK0 CLK0 CKE CLK1 CLK2 63 48 4...

Page 330: ...s due to mismatching It is not allowed to access all of those selectors but it is allowed to access the selectors shaded in the worker switch table Worker Switch WSW No Function Refer to WSW54 PictBridge command delay time App 1 2 WSW55 Interval of time required for the developing bias voltage correction App 1 2 PS emulation function setting HL 4040CN only App 1 3 WSW56 Last Job Reprint function s...

Page 331: ... on each print job 1 72 The developing bias voltage correction is performed when a print job occurs at specified time or later 24 default 73 254 Not allowed to set 255 The developing bias voltage correction is not performed The setting example of the selector number is as follows No 1 2 3 4 5 6 7 8 0 0 0 0 0 0 0 0 The developing bias voltage correction is performed on each print job 0 0 0 1 1 0 0 ...

Page 332: ...ion setting HL 4040CN only 0 Invalid default 1 Valid 2 Not used 3 Last Job Reprint function setting 0 Invalid 1 Valid default 4 8 Not used Selector 3 Last Job Reprint function setting Setting this selector to 0 deactivates the Last Job Print Setting this selector to 1 activates the Last Job Print ...

Page 333: ... the OK button then within 2 seconds of pressing the OK button press the Go button and within 2 seconds of pressing the Go button press the button four times to make the machine enter the maintenance mode 2 The machine displays on the LCD Press the or button to select MAINTENANCE 01 3 Press the OK button The PARAMETER INIT appears on the LCD Upon completion of parameter initialization including th...

Page 334: ...mber and property codes and the location of each label Serial number labels for the machine itself Serial number Serial number 6 digit Manufacturing factory No 7 2007 8 2008 A January B February C March D April E May F June G July H August J September K October L November M December Year of manufacture Month of manufacture A 7 J 1 1 1 1 0 1 Model number Fig App3 1 Location Fig App3 2 Fig App3 3 Se...

Page 335: ...ormation Serial number 6 digit Unit type Model type C AC Manufacturing factory No 7 2007 8 2008 Year of manufacture Month of manufacture A January B February C March D April E May F June G July H August J September K October L November M December Fig App3 4 Location Fig App3 5 Serial label Waste toner box Barcode ...

Page 336: ...igit Unit type Model type C AC Manufacturing factory No 7 2007 8 2008 Year of manufacture Month of manufacture A January B February C March D April E May F June G July H August J September K October L November M December Unique information Fig App3 6 Location Fig App3 7 Serial label Belt unit Barcode Serial label ...

Page 337: ...t type DR Drum unit TM Toner unit Magenta TC Toner unit Cyan TY Toner unit Yellow TK Toner unit Black Manufacturing factory No 7 2007 8 2008 Year of manufacture Month of manufacture A January B February C March D April E May F June G July H August J September K October L November M December Fig App3 8 Location Fig App3 9 Fig App3 10 Serial label Serial label Toner cartridge Drum unit Barcode ...

Page 338: ...tite bind B M3x10 Taptite bind B M3x12 Taptite bind B M4x10 Taptite bind S M3x6 Taptite cup B M3x8 Taptite cup B M3x10 Taptite cup B M3x12 Taptite cup B M4x10 Taptite cup B M4x12 Taptite cup B M4x14 Screw bind M3x5 Screw bind M3x8 Screw pan S P washer M3x16 Screw flanged M3x3 5 Taptite flat B M3x10 Taptite pan B M4X14 Screw cup M3x6 Shoulder screw Taptite cup S M4x8 Taptite cup S M3x8 Taptite cup ...

Page 339: ...equirements A3 or ledger size paper A4 or letter size paper Procedures 1 Cut the A3 or ledger size paper and attach the double faced adhesive tape referring to the figure below Fig App5 1 2 Attach the double faced adhesive tape onto the A4 or letter size paper Fig App5 2 Double faced adhesive tape 9mm 100mm Double faced adhesive tape 9mm Long edge Long edge Cut Short edge ...

Page 340: ... 3 Align those two sheets of paper with the marking lines on the drum unit remove sheet and attach them Fig App5 3 Marking line Marking line A4 or letter size paper A3 or ledger size paper to be cut Drum unit remove sheet ...

Page 341: ...fer to 4 2 Diameter of Rollers Chapter 1 of the Service Manual 4 Periodical replacement parts Refer to 2 1 Periodical Replacement Parts Chapter 2 of the Service Manual 5 Reset parts life Refer to 2 3 Parts Life Reset Function Chapter 2 of the Service Manual 6 Machine specification Refer to 2 SPECIFICATIONS LIST Reference 1 of the Service Reference Manual 7 Paper specification Refer to 2 6 Paper Re...

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