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Confidential

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(9) Remove the two bind B M4x12 Taptite screws.

(10) Release the two Hooks and one boss to remove the Joint cover FL from the Joint cover

ASSY.

Fig. 3-161

(11) Remove the three bind B M3x8 Taptite screws, and then remove the Top cover USB front

ASSY.

Fig. 3-162

Taptite, bind B M4x12

Joint cover ASSY

Joint cover FL

Boss

Hook

Taptite, bind B M3x8

Joint cover FL

Top cover USB front ASSY

Taptite, bind B M3x8

Hook

Summary of Contents for DCP-9045CDN

Page 1: ...aser Printer SERVICE MANUAL MODEL DCP 9045CDN MFC 9840CDW Read this manual thoroughly before carrying out any maintenance work Keep this manual in a convenient place for quick and easy reference at all times July 2007 SM FAX076 10 ...

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: ...ce parts CHAPTER 3 DISASSEMBLY AND ASSEMBLY Details of procedures for disassembling and assembling 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 chapter al...

Page 4: ...M APPENDIX 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 servi...

Page 5: ...age Defect Examples 1 44 4 2 Diameter of Rollers 1 45 4 3 Troubleshooting Image Defect 1 45 5 SOFTWARE SETTING PROBLEMS 1 62 6 NETWORK PROBLEMS 1 63 7 TROUBLESHOOTING OF THE COMMUNICATIONS ERRORS 1 64 8 TROUBLESHOOTING OF THE CONTROL PANEL 1 68 9 TROUBLESHOOTING OF FAX FUNCTIONS 1 70 10 OTHERS PROBLEMS 1 74 CHAPTER 2 PERIODICAL MAINTENANCE 2 1 1 CONSUMABLE PARTS 2 1 2 PERIODICAL REPLACEMENT PARTS ...

Page 6: ...nsfer HVPS PCB Unit 3 50 8 11 Registration mark Sensor PCB ASSY 1 2 Density Sensor Registration Relay PCB ASSY Transfer HVPS PCB ASSY 3 51 8 12 Side Cover L ASSY 3 57 8 13 Side Plate LB 3 58 8 14 Drum Unit Fan OPC 3 59 8 15 Side Cover R ASSY 3 60 8 16 Paper Stopper 3 61 8 17 Driver PCB ASSY 3 62 8 18 Pull arm L R Hinge Protection Cover ASSY 3 64 8 19 ADF Unit 3 68 8 20 Panel Unit 3 102 8 21 Docume...

Page 7: ...5 Develop Release Sensor PCB ASSY 3 169 8 46 Develop Press Drive L ASSY 3 169 8 47 Front Cover Interlock Switch ASSY 3 172 8 48 Toner Sensor PCB ASSY K Y M C TE NEW 3 173 8 49 New Toner Actuator New Toner Actuator Spring 3 177 8 50 Side Plate R ASSY 3 178 8 51 Drum Lock Lever L 3 179 8 52 Drum Lock Lever R 3 180 8 53 Charge HVPS PCB ASSY 3 181 8 54 Toner LED PCB ASSY 3 183 8 55 Fuser Unit Fan FU 3...

Page 8: ...CD Function code 12 5 11 1 4 8 Operational Check of Control Panel Button Function code 13 5 12 1 4 9 ROM Version Check Function code 25 5 13 1 4 10 Drum Unit Cleaning Function code 31 5 14 1 4 11 Operational Check of Sensors Function code 32 5 15 1 4 12 Switching of the USB Transfer Speed in the PictBridge Mode Function code 45 5 19 1 4 13 EEPROM Customizing User accessible Function code 52 5 20 1...

Page 9: ...ng the Life Counter of the Drum Unit 5 40 2 1 4 Resetting the Life counter of the Paper Feeding Kit 5 40 2 1 5 Resetting the Life Counter of the MP Paper Feeding Kit 5 41 2 1 6 Resetting the Life Counter of the Laser Unit 5 41 2 2 Develop Roller Developing Bias Voltage Counter Reset Function 5 42 2 3 Drum Unit Cleaning Mode 5 43 2 4 Fuser Motor Speed Adjustment Mode 5 43 CHAPTER 6 CIRCUIT DIAGRAMS...

Page 10: ...chine 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 LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT Varoitus Laitteen käyttäm...

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: ... 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 which can be determin...

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: ...of the laser unit ACHTUNG Im Falle von Störungen der Lasereinheit muß diese ersetzt werden Das Gehäuse der Lasereinheit darf nicht geöffnet werden da sonst Laserstrahlen austreten können 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 personal accessories s...

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: ...ds of WARNING messages included in this manual WARNING There are high voltage electrodes inside the machine Before you clean the inside of the machine or replace parts make sure that you have turned off the power switch and unplugged the machine from the AC power outlet ...

Page 17: ...machine Doing this may cause a fire or electrical shock If the machine becomes hot blows smoke or generates obscure odor immediately turn off the power switch and unplug the machine from the AC power outlet If metal objects water or other liquids get inside the machine immediately turn off the power switch and unplug the machine from the AC power outlet To prevent injuries be careful not to put yo...

Page 18: ...wer completely IMPORTANT SAFETY INSTRUCTIONS When using your telephone equipment basic safety precautions should always be followed to reduce the risk of fire electric shock and injury to people including the following 1 Do not use this product near water for example near a bath tub wash bowl kitchen sink washing machine or in a wet basement or near a swimming pool 2 Avoid using this product durin...

Page 19: ...y not be copied Money Bonds or other certificates of indebtedness Certificates of Deposit Internal Revenue Stamps canceled or uncanceled Selective Service or draft papers Passports United States Canadian Postage Stamps canceled or uncanceled Food Stamps Immigration Papers Checks or drafts drawn by Governmental agencies Identifying badges or insignias Copyrighted works cannot be copied Sections of ...

Page 20: ...es 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 Check Check the following items before attempting to repair the machine Operating Environment 1 Put your machine on a flat stable s...

Page 21: ...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 unpacked soon after it is moved from a cold place to a warm room condensation may occur inside the unit which may cause incorrect image...

Page 22: ...sensor PCB failure Y 1 11 66 Replace the toner cartridge Y 1 18 2E Toner sensor PCB failure M 1 11 67 Replace the toner cartridge K 1 18 2F Toner sensor PCB failure C 1 11 68 Fuser unit failure 1 19 30 Incorrect EL lamp current value 1 11 69 Fuser unit failure 1 19 31 Density sensor failure 1 12 6A Fuser unit failure 1 19 6B Fuser unit failure 1 19 32 Density sensor shutter performance malfunction...

Page 23: ...o color registration 1 7 C4 Tray 2 LT plate up function malfunction 1 34 C5 EL lamp electrifying failure 1 34 9D Incorrect sensor measurement value when implementing auto color registration from the control panel 1 26 C6 Toner cartridge mis dividing 1 34 C7 Insufficient DIMM memory 1 7 C8 RAM area for secure data full 1 35 C9 Defective DIMM is installed 1 7 9E Toner cartridge whose color is used r...

Page 24: ...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 Parts 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...

Page 25: ...ter using the control panel on the machine Refer to 2 3 Parts Life Reset Function in Chapter 2 Error code 5E Change Parts 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 The machine is cooling down insi...

Page 26: ...t 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 Unable 9C Request on auto color registration User Check The machine starts implementing color registration automatically when it enters the standby status Error code C7 Out of Memory Add more ...

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: ...ure 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 con...

Page 29: ...SY 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 fan AIR failure or short circuit of fuser unit fan FU LVPS fan PS or drum unit fan OPC Step Cause Remedy 1 Air intake fan AIR harness connection failure Check the harness connection of the air intake fan AIR and reconnect it 2 Short circuit of air intake fan AIR fu...

Page 30: ... 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 Check Re...

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: ...lure 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 then back on again Be...

Page 33: ...nect it 2 THM HUM sensor failure Replace the THM HUM sensor holder ASSY 3 Engine PCB failure 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 ...

Page 34: ...ng error into engine firmware Step Cause Remedy 1 The machine is turned off while rewriting the data into the engine 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 correcty Step Cause Remedy 1 Back cover switch...

Page 35: ...ace the 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 one of 68 ...

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: ... 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 Toner Low Prepare New Toner Cartridge The appropriate color is shown in The toner cartridge of the appropriate color shown on the LCD should be replaced User Check Gently shake the toner cartridge of the appropriate color from side to side and install it again Replace th...

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: ...73 Print Unable 73 Turn the power off and then back on again Beam detecting sensor C failure Step Cause Remedy 1 Condensation on laser unit Turn the power off and leave the machine in an airy place at normal room temperature 2 Laser unit harness connection failure Check the two harness connections of the laser unit and reconnect them 3 Laser unit failure Replace the laser unit 4 Engine PCB failure...

Page 40: ...one Step Cause Remedy 1 Toner sensor PCB TE NEW failure Toner empty Check the sensor performance following the procedure described in Maintenance mode 32 If any problem occurs replace the toner sensor PCB TE NEW of the appropriate color 2 Engine PCB failure Replace the engine PCB ASSY Error code 76 Print Unable 76 Turn the power off and then back on again Fuser unit failure The center thermistor d...

Page 41: ...tch measurement is not completed normally when implementing calibration 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 Check if the genuine toner cartridges are installed in the correct order of colors Step Cause Remedy 1 Density sensor shutter not operating smoothly or catching in some position Corre...

Page 42: ...ng smoothly or catching in some position Correct smooth operation of the registration front actuator registration rear actuator or paper eject actuator and ensure they are not catching in any positions 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 performanc...

Page 43: ...ne PCB failure Replace the engine PCB ASSY Error code 86 No Tray Tray 2 LT is not installed into the machine User Check Install Tray 2 LT into the machine Select other tray than Tray 2 Step Cause Remedy 1 Cassette sensor failure Check the sensor performance following the procedure described in Maintenance mode 32 If any problem occurs replace the LT paper feed frame unit Error code 89 Size Error D...

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: ...lor 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 registra...

Page 46: ...PCB ASSY Error code A2 Document Jam Clear the scanner jam then press the Stop Key The document is too long During scanning 90 cm or longer of a document is detected User Check Check if the document is jammed in the ADF If jammed remove it Step Cause Remedy 1 Document rear actuator not operating smoothly or catching in some position Correct smooth operation and that there is no catching of document...

Page 47: ...oblem occurs again even though turning the power off and on Step Cause Remedy 1 Scanner unit failure Replace the FB unit 2 Main PCB failure Replace the main PCB ASSY Error code A7 Machine Error Unplug machine then call Brother There is no registration in scanning color parameter data Step Cause Remedy 1 Main PCB failure Replace the main PCB ASSY 2 CCD unit failure Replace the CCD unit Error code A...

Page 48: ...s Guide FB unit home position sensor is not turned off Step Cause Remedy 1 Drive PCB failure Replace the drive PCB 2 Belt broken Replace the belt 3 Home position sensor failure Replace the home position sensor 4 Hook of the CCD unit broken Replace the CCD unit 5 Scanner motor failure Replace the scanner motor 6 Main PCB failure Replace the main PCB ASSY Error code B0 SCANNER ERROR Harness for CCD ...

Page 49: ...3 SCANNER ERROR Detection error of the scanning area on the left end This error is indicated on the LCD in the maintenance mode Step Cause Remedy 1 CCD unit failure Replace the CCD unit 2 Main PCB failure Replace the main PCB ASSY Error code B4 SCANNER ERROR Detection error of the scanning area on the right end This error is indicated on the LCD in the maintenance mode Step Cause Remedy 1 CCD unit...

Page 50: ...ite tape dirty of FB unit Clean the white tape 2 CCD unit failure Replace the CCD unit 3 Main PCB failure Replace the main PCB ASSY Error code B9 SCANNER ERROR Scanning light adjustment error is detected This error is indicated on the LCD in the maintenance mode Step Cause Remedy 1 CCD unit failure Replace the CCD unit 2 Main PCB failure Replace the main PCB ASSY Error code BB SCANNER ERROR White ...

Page 51: ... in the maintenance mode Step Cause Remedy 1 CCD unit failure Replace the CCD unit 2 Main PCB failure Replace the main PCB ASSY Error code BF Unable to Scan Document is too long for duplex scanning Press Stop key Longer document than the specified size is detected in duplex scanning Step Cause Remedy 1 Document front actuator 2 not operating smoothly or catching in some position Correct smooth ope...

Page 52: ...genta 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 voltage and d...

Page 53: ...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 54: ...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 4 A device whose power consumption is out of the specification is inserted in the USB direct interface Remove the device 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...

Page 55: ... 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 1 and Fig 1 2 P1 37 2 Bending of front door unit ASSY electrode contact Correct the electrode bending of the front...

Page 56: ...e front door unit ASSY Fig 1 2 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 57: ...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 58: ... E1 Program error Step Cause Remedy 1 Firmware update failure Upload the latest firmware 2 Main PCB failure Replace the main PCB ASSY Error code E6 Print Unable E6 Turn the power off and then back on again NVRAM error on main PCB Step Cause Remedy 1 Main PCB failure Replace the main PCB ASSY Error code EB Print Unable EB Turn the power off and then back on again NVRAM reading error on laser unit S...

Page 59: ... a while Step Cause Remedy 1 Harness connection failure of wireless LAN PCB ASSY Check the harness connection of the wireless LAN PCB ASSY and reconnect it 2 Wireless LAN PCB failure Replace the wireless LAN PCB ASSY 3 Main PCB failure Replace the main PCB ASSY Error code EF Print Unable EF Turn the power off and then back on again Incorrect print coverage value User Check Turn the power off Turn ...

Page 60: ...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 61: ...t Is there a foreign 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...

Page 62: ... toner box electrode Is the electrode of the waste toner box dirty Yes Clean the electrode of the main body and 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 box Check the near full sensor ASSY Or repl...

Page 63: ...ity Hollow print Downward fogging of solid color Horizontal lines Ghost 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 registration Dark Dirt on the bottom end of paper White ver...

Page 64: ... in 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 ...

Page 65: ...fter 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 appropriate color Check the harnes...

Page 66: ...th a new one Implement calibration from the control panel Step Cause Check Result Remedy 1 Corona wire conduction failure Are the electrodes on the drum unit and machine body dirty Yes Clean both electrodes 2 Dirt on belt unit electrode Are the electrodes on the belt unit and machine body dirty Yes Clean both electrodes 3 Transfer HVPS PCB failure Is the problem solved after replacing the transfer...

Page 67: ...roblem solved after replacing the engine PCB ASSY Yes Replace the engine PCB ASSY Completely blank User Check Replace the toner cartridge or drum unit with a new one Step Cause Check Result Remedy 1 Developing bias voltage conduction failure Are the electrodes on the drum unit and machine body dirty Yes Clean both electrodes 2 Scanner harness connection failure Is the scanner harness connected sec...

Page 68: ...Remedy 1 Are the electrodes on the drum unit of the appropriate color and machine body dirty Yes Clean both electrodes 2 Corona wire failure Is the corona wire damaged Yes Replace the drum unit 3 Charge HVPS PCB failure Is the problem solved after replacing the charge HVPS PCB ASSY Yes Replace the charge HVPS PCB ASSY 4 Main PCB failure Is the problem solved after replacing the main PCB ASSY Yes R...

Page 69: ...em may occur with noise which is caused by dirt on the corona wire in the drum unit In this case clean the corona wire with the wire cleaner Replace the drum unit with a new one Replace the toner cartridge with a new one Step Cause Check Result Remedy 1 Dirt in the paper feed system Is the paper tray or feed system on the drum unit dirty with toner Yes Wipe dirt off 2 Scratch on the exposure drum ...

Page 70: ...ich is provided in the machine body Refer to Fig 1 4 Yes Correct bending of paper tray ground terminal 3 Toner attached on the develop roller Are 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 ...

Page 71: ...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 pr...

Page 72: ...pots 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 d...

Page 73: ...eft hand Fig 1 5 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 74: ...ace comes off Fig 1 8 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 75: ...ause 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 fuse...

Page 76: ...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 77: ...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 78: ...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 79: ...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 10 2 Dirt on base shaft Is the base shaft dirty Yes Wipe the dirt with a dry cloth as shown in Fig 1 11 Fig 1 10 Fig 1 11 Figure of the front view Base shaft ...

Page 80: ...t with a new one Step Cause Check Result Remedy 1 Dirt on fuser unit Is the heat roller of the fuser unit dirty Yes Clean the heat roller of the fuser unit 2 Foreign substance or dirt on the paper feeding path Is there any foreign substance or dirt on the paper feeding path Yes Clean the paper feeding path ...

Page 81: ...1 Failure inside the machine Does the machine print test pattern Check it following the procedure described in Maintenance mode 09 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 DCP 9045CDN 01CB MFC 9840CDW 01CC Hexadecimal 3 USB host relay PCB failure Is the ...

Page 82: ... Try resetting the factory settings Step Cause Check Result Remedy 1 Wireless LAN PCB failure 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 83: ...ected 11 06 Busy tone detected after dialing or called 11 07 No response from the remote station in sending 11 10 Unobtainable tone detected after dialing 17 07 No response from the calling station in receiving Available in German models only 2 Command reception Code 1 Code 2 Causes 20 01 Unable to detect a flag field 20 02 Carrier was OFF for 200 ms or longer 20 03 Abort detected 1 in succession ...

Page 84: ...red for reception of the confidential or relay broad casting instruction 32 18 Remote terminal not equipped with color function 4 Instructions received from the remote terminal checking the NSC DTC NSS and DCS Code 1 Code 2 Causes 40 02 Illegal coding system requested 40 03 Illegal recording width requested 40 05 ECM requested although not allowed 40 06 Polled while not ready 40 07 No document to ...

Page 85: ...3 03 Polling ID not correct 7 DCN reception Code 1 Code 2 Causes 74 DCN received 8 TCF transmission reception Code 1 Code 2 Causes 80 01 Fallback impossible 9 Signal isolation Code 1 Code 2 Causes 90 01 Unable to detect video signals and commands within 6 seconds after CFR is transmitted 90 02 Received PPS containing invalid page count or block count ...

Page 86: ...ode 2 Causes B0 02 Unable to receive the next page data B0 03 Unable to receive polling even during turn around transmission due to call reservation B0 04 PC interface error BF 01 Communication canceled by pressing the Stop Exit button before establishment of FAX communication BF 02 Communication canceled by pressing the Stop Exit button after establishment of FAX communication BF 03 Transmission ...

Page 87: ...CB and control panel PCB Is the harness damaged Yes Replace the harness with a normal one 3 Connection between main PCB and PS PCB unit Are the main PCB and PS PCB unit connected properly No Reconnect the connector properly 4 Harness between main PCB and PS PCB unit Is the harness damaged Yes Replace the harness with a normal one 5 LCD Is the problem solved after replacing the LCD Yes Replace the ...

Page 88: ...cing the control panel PCB Yes Replace the control panel PCB 6 Main PCB Is the problem solved after replacing the main PCB ASSY Yes Replace the main PCB ASSY Printing from Macintosh applications fails User Check Check that the printer driver which is supplied with the product is installed in Library Printers and that the print queue is created Check the connecting end on the printer browser It mus...

Page 89: ...ween main PCB and NCU PCB Is the harness damaged Yes Replace the harness with a normal one 4 Connection between main PCB and control panel PCB Are the main PCB and control panel PCB connected properly No Reconnect the connector properly 5 Harness between main PCB and control panel PCB Is the harness damaged Yes Replace the harness with a normal one 6 Contact of rubber key Does the rubber key work ...

Page 90: ...he main PCB and control panel PCB connected properly No Reconnect the connector properly 6 Harness between main PCB and control panel PCB Is the harness damaged Yes Replace the harness with a normal one 7 Contact of rubber key Is the problem solved after replacing the rubber key No Replace the rubber Key 8 NCU PCB Is the problem solved after replacing the NCU PCB ASSY Yes Replace the NCU PCB ASSY ...

Page 91: ...PCB and NCU PCB Are the main PCB and NCU PCB connected properly No Reconnect the connector properly 4 Harness between main PCB and NCU PCB Is the harness damaged Yes Replace the harness with a normal one 5 Speaker Is the problem solved after replacing the speaker Yes Replace the Speaker 6 NCU PCB Is the problem solved after replacing the NCU PCB ASSY Yes Replace the NCU PCB ASSY 7 Main PCB Is the ...

Page 92: ...Reconnect the connector properly 6 Harness between main PCB and control panel PCB Is the harness damaged Yes Replace the harness with a normal one 7 NCU PCB Is the problem solved after replacing the NCU PCB ASSY Yes Replace the NCU PCB ASSY 8 Main PCB Is the problem solved after replacing the main PCB ASSY Yes Replace the main PCB ASSY Dialing function does not switch between tone and pulse Step P...

Page 93: ...PCB unit 5 Main PCB Is the problem solved after replacing the main PCB ASSY Yes Replace the main PCB ASSY The fan does not work Verify the position of each fan referring to 1 4 22 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 harnes...

Page 94: ...link lever 4 Roller holder ASSY failure Replace the roller holder ASSY 5 Paper feed belt cleaner motor failure Replace the paper feed belt cleaner motor The new toner is not detected Step Cause Remedy 1 New toner actuator not operating smoothly or catching Make sure correct movement of the new toner actuator of the appropriate color 2 New toner actuator damaged Replace the drum unit 3 Main PCB fai...

Page 95: ...ring the period of warranty of the product 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...

Page 96: ...age printed x Number of pages in continuous printing 1 27 The number of drum rotations per one page continuous printing Example Starts to print when the machine is in the Ready state Continuous printing Page counter based on the number of drum rotations Pages 1 page job 27 4 6 x 1 1 27 1 2 pages job 27 4 6 x 2 1 27 1 17 18 pages job 27 4 6 x 18 1 27 3 89 If you leave the machine without printing f...

Page 97: ...ber of belt rotations is increasing because the developing bias voltage correction and the color registration are performed If you print one page per one job every time after leaving the machine without printing for a long time the belt unit life is shorter than usual The number of belt rotations required for the developing bias voltage correction 5 3 rotations Example Performs the developing bias...

Page 98: ...unt 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 by accessing the machine s log information on the LCD Refer to 1 4 23 Display of the Machine s Log Information Functi...

Page 99: ...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 100: ...frame ASSY from the Paper eject ASSY DX Fig 2 3 Installing Procedure 1 Assemble the Toner filter frame ASSY onto the Paper eject ASSY DX Fig 2 4 Toner filter frame ASSY Paper eject ASSY DX Toner filter frame ASSY Paper eject ASSY DX 3a 3b 1a 1b ...

Page 101: ...ssembling 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 When assembling or disassembling the fuser unit the sponge on the HV TR top cover might get scraped If it is scraped remove the scraped waste and clean the feeding path After replacing the fuser unit be sure...

Page 102: ...Confidential 2 8 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 103: ... 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 104: ...per Note Be careful not to break the plastic As this can be difficult to remove 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 105: ...ng the Side cover L ASSY pay attention to the Wire support rope Fig 2 12 7 Remove the three cup S M3x6 Taptite screws one cup B M4x12 Taptite screw and one cup S M4x8 Taptite screw and then remove the Side plate LB Fig 2 13 Hook Taptite cup B M4x12 Taptite cup S M3x8 Taptite cup B M4x12 Hooks Hooks Side cover L ASSY Left side Wire support rope Taptite cup S M4x8 Side plate LB Taptite cup B M4x12 T...

Page 106: ...e 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 14 10 Disconnect the three Connectors CN1 CN2 CN4 from the Driver PCB ASSY Fig 2 15 Taptite cup S M4x8 Hooks Side cover R ASSY A Taptite cup S M4x8 Taptite cup B M4x12 Hooks Right side 9a 9b Hook Driver PCB ASSY Left side CN2 CN1 Document scanner unit ASSY CN4 Main PCB ASSY ...

Page 107: ...three Connectors CN14 CN16 CN21 and Flat cable CN17 from the Main PCB ASSY and then pull out the Flat cable from the Core Note After disconnecting the Flat cable s check that each cable is not damaged at its end or short circuited Fig 2 17 FG harness ADF Main PCB ASSY Taptite cup S M3x6 Taptite cup S M3x6 FG harness FB CN14 CN21 Flat cable CN17 Left side Left side Document scanner unit ASSY Driver...

Page 108: ...t scanner unit ASSY Fig 2 18 15 Remove the two bind B M4x12 Taptite screws and then remove the Document scanner unit ASSY from the Joint cover ASSY Fig 2 19 Hook Pull arm R Document scanner unit ASSY Pull arm L Joint cover ASSY Hook Joint cover ASSY Document scanner unit ASSY Taptite bind B M4x12 Taptite bind B M4x12 Back side Hinge Hinge ...

Page 109: ...9840CDW only Fig 2 20 18 Remove the two cup S M3x8 Taptite screws from the front side of the Joint cover ASSY and remove two cup S M3x8 Taptite screws from the left side of the Joint cover ASSY Fig 2 21 Joint cover ASSY Taptite cup S M3x8 Taptite cup S M3x8 Front Left side Main PCB ASSY CN10 CN7 CN3 FG harness NCU Screw pan S P washer M3 5x6 CN2 Develop gear plate ASSY Taptite cup S M3x8 Left side...

Page 110: ...ove the six cup S M4x8 Taptite screws from the top side of the Joint cover ASSY 21 Release the four Hooks and one Pin to remove the Joint cover ASSY from the Frame unit Fig 2 23 Joint cover ASSY Back side Taptite cup S M3x8 Taptite cup S M4x8 Taptite cup S M4x8 Pin Taptite bind B M4X12 Taptite bind B M4X12 Joint cover ASSY Frame unit Front Hooks Hook Hook ...

Page 111: ...move the nine cup S M3x6 Taptite screws 8 pieces from the top and 1 piece from the front and then remove the Scanner cover Fig 2 25 Hook slope Hook slope Taptite cup S M3x8 Frame unit Taptite cup S M3x8 Front Scanner cover Taptite cup S M3x6 Taptite cup S M3x6 Taptite cup S M3x6 Taptite cup S M3x6 Frame unit Front ...

Page 112: ...e is not damaged at its end or short circuited Fig 2 26 25 Remove the seven cup S M3x6 SR Taptite screws and then remove the four Scanner holders and Laser unit Fig 2 27 Laser unit Front 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 ...

Page 113: ...igure below Fig 2 28 2 Connect the two flat cables CN1 CN4 and one connector CN8 into the Laser unit Note 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 2 29 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 ...

Page 114: ...er cover secure the Screws in the order of the numbers which are indicated on the Scanner cover Fig 2 30 4 Assemble the two Hook slopes with the four cup S M3x8 Taptite screws Fig 2 31 Scanner cover Taptite cup S M3x6 Taptite cup S M3x6 Taptite cup S M3x6 Taptite cup S M3x6 Frame unit Front Hook slope Hook slope Taptite cup S M3x8 Frame unit Taptite cup S M3x8 Front ...

Page 115: ...ws onto the top of the cover Fig 2 32 6 Secure the one cup S M3x8 Taptite screw and two bind B M4x12 Taptite screws onto the back side of the Joint cover ASSY Fig 2 33 Taptite cup S M4x8 Taptite cup S M4x8 Joint cover ASSY Joint cover ASSY Back side Taptite cup S M3x8 Pin Taptite bind B M4x12 Taptite bind B M4x12 Frame unit Front Hooks Hook Hook ...

Page 116: ...ig 2 34 9 Connect the four Connectors CN2 CN3 CN7 CN10 into the Main PCB ASSY CN2 CN7 MFC 9840CDW only 10 Assemble the FG harness NCU with the Screw pan S P washer M3 5x6 MFC 9840CDW only Fig 2 35 Joint cover ASSY Taptite cup S M3x8 Taptite cup S M3x8 Front Left side Taptite cup S M3x8 Main PCB ASSY CN10 CN7 CN3 FG harness NCU Screw pan S P washer M3 5x6 CN2 Develop gear plate ASSY Left side ...

Page 117: ...r ASSY 12 Secure the Hinges with the two bind B M4x12 Taptite screws Fig 2 36 13 Catch the Hooks of the Document scanner unit ASSY with Joint of the Pull arm L R Fig 2 37 Document scanner unit ASSY Joint cover ASSY Taptite bind B M4x12 Taptite bind B M4x12 Back side Hinge Hook Pull arm R Document scanner unit ASSY Pull arm L Joint cover ASSY Hook Hinge Joint cover ASSY Hole Flat cable ...

Page 118: ...h the one cup S M3x6 Taptite screw Fig 2 38 16 Connect the three Connectors CN1 CN2 CN4 into the Driver PCB ASSY Fig 2 39 Document scanner unit ASSY Driver PCB shield FG harness ADF FG harness FB Taptite cup S M3x6 Taptite cup S M3x6 Driver PCB ASSY Left side CN4 CN2 CN1 Document scanner unit ASSY Main PCB ASSY Left side ...

Page 119: ...ite screws and two cup S M4x8 Taptite screws 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 Fig 2 41 Tap...

Page 120: ... 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 1 Taptite cup...

Page 121: ...aptite screws Fig 2 44 22 Assemble the Back cover upper with the two cup S M3x8 Taptite screws Note Be careful not to break the plastic As this can be difficult to reassemble Fig 2 45 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 122: ... Close the Back cover Fig 2 46 24 Close the Front door unit ASSY Fig 2 47 25 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 123: ...e Paper tray and remove the paper from the Paper tray Fig 2 48 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 49 Paper tray Hook Hook Separation pad ASSY Paper tray Front Separation pad spring ...

Page 124: ...5 Press 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 51 Separation pad ASSY Pin Pin Paper tray 3b 3a 3a Front Paper feed frame unit Paper feed frame unit Roller holder ASSY Boss Lift arm 6a 6b Front Separatio...

Page 125: ... onto the Paper feed frame unit in the order of the arrow 1a 1b and 1c Fig 2 53 Paper feed frame unit Roller holder ASSY 7a 7b 7c Upper side Paper feed frame unit Holder shaft 1c 1b 1a Upper side Front Front 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 126: ...g the Roller holder ASSY upwards If the Lift arm does not move it is not assembled correctly Fig 2 54 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 55 Paper feed frame unit Paper feed frame unit Roller holder ASSY Boss Lift arm 2a 2b Front Separation pad ASSY Hook Hook Paper...

Page 127: ...ck that the Separation pad ASSY pivots up and down smoothly by pushing it gently Fig 2 56 6 Install the Paper tray into the machine Fig 2 57 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 Paper tray Pin 5b 5a 5a ...

Page 128: ...e Front cover 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 58 3 Remove the MP lift arm 2 Fig 2 59 Hooks MP feed frame cover Front door unit ASSY Front Front door unit ASSY MP lift arm 2 Front ...

Page 129: ...move the Holder bush MP from the shaft of the MP roller holder ASSY Fig 2 60 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 61 MP roller holder ASSY Hook Holder bush MP Front door unit ASSY 4b 4a Front MP roller holder ASSY Front door unit ASSY 5a 5b Front ...

Page 130: ...ring 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 63 Separation pad ASSY MP Front door unit ASSY Front Separation pad ASSY MP Hook Front 6a 6b 2a 2b Separation pad spring MP Separation pad spring MP P...

Page 131: ...he arrow 3b to re assemble it Fig 2 64 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 65 MP roller holder ASSY Front door unit ASSY 3b 3a Front MP roller holder ASSY Hook Holder bush MP Front door unit ASSY 4a 4b Front Holder shaft Separation pad ASSY MP Hole ...

Page 132: ...o the hole on the MP lift arm 2 Fig 2 66 6 Assemble the MP feed frame cover onto the Front door unit ASSY 7 Close the Front door unit ASSY Fig 2 67 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 MP lift arm 2 Shaft MP roller holder ASSY Bosses Hooks MP feed frame cover Front door unit ASSY Front Ho...

Page 133: ... replacement parts are indicated on the LCD Drum Belt Unit PF Kit MP PF Kit 1 PF Kit 2 Fuser Laser 3 When the OK button is pressed the 1 Reset 2 Exit appears on the LCD Press the 1 button if resetting the counter If not press the 2 button 4 Pressing the 1 button accepts that the machine implements the counter reset 5 The machine returns to the ready status Note All periodical replacement parts are...

Page 134: ...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 135: ...ner cartridge C M Y K Machine Option carton Carton Pad L Pad R Carton bottom Carton cord box Carton joint Carton joint Carton pad Option pad L Option pad R Panel Pad base Carton pad Carton pad Middle pad Middle pad Middle pad Carton outer US only Carton spacer US only ...

Page 136: ...3x8 1 0 60 0 1 6 1 Density shield 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 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 Taptite cup B M3x10 ...

Page 137: ...r 2 Taptite cup B M3x10 1 0 50 0 1 5 1 Handle cover Taptite cup B M3x10 2 0 50 0 1 5 1 Panel unit Taptite cup B M3x10 4 0 50 0 1 5 1 Dressing cover FB FL Taptite cup B M4x12 3 0 80 0 1 8 1 Dressing cover FB FR Taptite cup B M4x12 3 0 80 0 1 8 1 Dressing cover FB top Taptite cup B M4x12 2 0 80 0 1 8 1 Scanner top cover ASSY Taptite cup B M4x12 6 0 80 0 1 8 1 Lock lever ASSY Taptite screw B M3x6 2 0...

Page 138: ...b Taptite cup B M3x8 1 0 39 0 1 3 9 1 EL electrode spring cover ASSY Taptite bind B M3x8 2 0 392 0 098 3 92 0 98 EL spring harness ASSY Taptite bind B M3x8 2 0 392 0 098 3 92 0 98 Front door main Taptite bind B M4x10 2 0 59 0 1 5 9 1 Hook cover Taptite cup B M4x10 2 0 59 0 1 5 9 1 Engine PCB ASSY Taptite cup S M3x6 5 0 80 0 1 8 1 Taptite cup S M3x6 1 0 80 0 1 8 1 Ground plate Taptite bind B M4x12 ...

Page 139: ...ite bind B M4x12 2 1 20 0 1 12 1 Toner LED PCB Screw pan S P washer M3x16 4 0 50 0 1 5 1 Power inlet socket 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 ...

Page 140: ...TION GE2 PG2 BDX1 PG2 PG 661 W 2mm dia ball GE2 GE 676 2mm dia ball BDX1 BDX 313 1mm dia ball BG2 BG2 BG MU 2mm dia ball Motor shaft Develop drive motor ASSY Develop gear plate ASSY 3 places Separation roller shaft ASSY 4 places ...

Page 141: ... 3 8 PG2 PG2 PG2 PG2 PG2 PG2 PG2 PG2 PG 661 W 2mm dia ball Motor frame ASSY DX 4 places Motor frame ASSY DX Gear 85 Gear 54 4 places 4 places 2 places x2 Arm Arm SB Arm PF Arm SB 2 places 2 places 2 places 2 places ...

Page 142: ... 2mm dia ball BG2 BG2 BG2 BG MU 2mm dia ball Paper feed belt cleaner motor Gear 90R 24 Gear 80R 30 Gear 90R 24 Gear 80R 30 3 places 3 places SB chute ASSY Pinch roller shaft Pinch roller shaft Pinch roller shaft 2 places 2 places 2 places 2 places ...

Page 143: ...m 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 144: ...mm dia ball 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 LT frame L In case of 2mm dia ball x4 28 places 4 place x7 ...

Page 145: ...Confidential 3 12 BG2 BG2 BG MS 2mm dia ball GE2 GE2 GE 676 2mm dia ball F roller shaft LT F roller shaft LT LT frame R LT frame L F roller shaft LT F roller shaft LT 2 places 2 places ...

Page 146: ...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 147: ...dential 3 14 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 148: ...LR0203001 Coupling gear 50 3 LR0201001 Gear 50 100 12 LR0203001 Coupling gear 50 4 LR0197001 Pendulum gear 50 13 LR0200001 Gear 45 5 LR0198001 Gear 38 14 LR0198001 Gear 38 6 LR0199001 Gear 35 15 LR0203001 Coupling gear 50 7 LR0198001 Gear 38 16 LR0200001 Gear 45 8 LR0199001 Gear 35 17 LR0203001 Coupling gear 50 9 LR0199001 Gear 35 These parts are subject to change without notice Develop drive moto...

Page 149: ...J7365001 Idle gear 16B 21 LM5016001 Ejector gear 16 22 LR0480001 Ejector gear 16 20 23 LR0482001 Eject roller gear 24 LR1181001 Ejector gear 36 SX 25 LR0478001 Ejector gear 14 24 26 LM5016001 Ejector gear 16 18 20 21 23 26 27 32 30 35 26 18 19 20 21 22 23 25 24 These parts are subject to change without notice Paper eject ASSY DX Left side Name of Gears ...

Page 150: ... 16 30 LM5018001 Ejector gear 16 planetary 31 LM5019001 Ejector gear 22 32 LJ7365001 Idle gear 16B 33 LR0979001 Ejector gear 28 sector 34 LM5019001 Ejector gear 22 35 LR0476001 Ejector gear 22B 36 LR0477001 Ejector gear 12 24 36 29 19 22 24 25 28 29 33 34 27 28 30 31 32 33 35 36 31 34 These parts are subject to change without notice Paper eject ASSY DX Left side Name of Gears ...

Page 151: ...Confidential 3 18 PF DRIVE Development view 37 38 39 40 41 42 43 44 45 46 47 48 Frame unit Front ...

Page 152: ...que spring for PU sector 36 39 40 41 42 38 37 37 40 41 42 43 39 38 Location of parts after removing the parts shown as 37 to 43 in the figure above Name of Gears 44 LR0309001 PP gear clutch cam 45 LR0310001 PP gear clutch cam spring 43 42 45 44 Location of parts after removing the parts shown as 44 and 45 in the figure above Name of Gears 46 LR0308001 Hook C 47 LR0307001 Hook B 48 LR0910001 Hook s...

Page 153: ...ensity sensor 2 USB host relay PCB ASSY Registration mark sensor PCB ASSY 2 Registration mark sensor PCB ASSY 1 Density sensor Ground plate 2 Transfer HVPS PCB unit Registration relay PCB ASSY Joint cover ASSY USB host relay PCB ASSY Side frame L Clamps Fan motor holder 40 Front Hooks Main PCB ASSY ...

Page 154: ...Belt cleaner release solenoid ASSY Belt cleaner release ASSY SOL PCB sheet Hole Hook Belt cleaner release solenoid ASSY Belt cleaner release sensor PCB ASSY Belt cleaner release ASSY A view Hook B view Paper feed frame unit T1 PE edge sensor PCB ASSY T1 PE edge sensor PCB ASSY Paper feed frame unit Hook Side frame L Hole PF CR harness holder Front Hook Hook Hook Hole B view ...

Page 155: ...ok Engine PCB ASSY Front Front Clamps Clamp Develop gear plate ASSY Side frame L Hook Hooks Hooks Release drive holder Toner sensor PCB ASSY K TE NEW Toner sensor PCB ASSY Y TE NEW Hook Hook Clamp Side frame L Release drive holder Engine PCB ASSY Develop gear plate ASSY Toner sensor PCB ASSY C TE NEW Toner sensor PCB ASSY M TE NEW ...

Page 156: ...t Laser unit Front Hole Hole Develop gear plate ASSY Side frame L Laser unit Clamp Hole Clamp Hole Develop gear plate ASSY Main PCB ASSY Develop press drive L ASSY Clamp Hooks Release drive holder Front Engine PCB ASSY Side frame L ...

Page 157: ...elop press drive L ASSY Develop release motor ASSY Clamps Release drive holder Clamp Engine PCB ASSY Hooks Interlock harness guide Front cover interlock switch ASSY Interlock harness guide Front Holes Side frame L Front cover interlock switch ASSY Front Frame R Hooks Hook LVPS fan PS Harness holder 16AWG Charge HVPS PCB ASSY ...

Page 158: ...holder 16AWG Hooks Frame R PS PCB unit Power Inlet socket Power supply switch Power Inlet socket Ground terminal Screw pan S P washer M4x8 Joint cover ASSY NCU unit Hook Hole Front Back Front NCU harness ASSY Main PCB ASSY Hole Hook FG harness NCU Develop gear plate ASSY ...

Page 159: ...ential 3 26 11 Paper feed belt cleaner motor ASSY Side frame L Hook Paper feed belt cleaner motor ASSY Drive frame unit ASSY Engine PCB plate Rib Front Drum drive ASSY Hook Hook Hook Hook Engine PCB ASSY Hook ...

Page 160: ...ent cover sensor harness Document cover sensor ADF relay PCB ASSY ADF motor Hook Hook Hole ADF unit Hole ADF harness Hole Document scanner unit Hook Rib Hook FG harness ADF Main PCB ASSY Driver PCB ASSY ADF relay harness Document cover sensor harness ADF motor harness Front A view A view ...

Page 161: ...front sensor 2 Document front sensor 1 ADF relay PCB ASSY Hole Hole Document front sensor 1 Motor frame ASSY DX ADF relay PCB ASSY Drive frame sub ASSY Document front sensor 2 B view A view Actuator front 2 Hook Hook Document front sensor 1 Actuator front 1 Hooks Hook Hook Hook Document front sensor 2 Paper feed chute ASSY B view ...

Page 162: ...elay PCB ASSY A view A view Switch back sensor harness Document rear sensor harness Switch back sensor Switch back sensor harness Hooks Hook Hooks Document rear sensor Lower main chute ASSY Actuator R Document rear sensor harness Hook Hook Hook PF solenoid ASSY ADF chute ASSY ADF relay PCB ASSY Motor frame ASSY DX S B solenoid ASSY Actuator SB ADF relay PCB ASSY ...

Page 163: ...rness FB CCD unit Hole HP sensor Document scanner unit HP sensor harness Driver PCB ASSY Main PCB ASSY FFC cable Harness holder Hooks Hooks HP sensor Hook Drive plate ASSY HP sensor harness Scanner motor Hole Driver PCB ASSY Drive plate ASSY Hooks FG harness FB Document scanner unit Rib Front Rib Rib Front ...

Page 164: ...ial 3 31 18 Panel unit 19 Speaker ASSY Panel unit Panel PCB ASSY Document scanner unit Hole Panel harness Harness holder Main PCB ASSY Hook Hooks Speaker ASSY Main PCB ASSY Hook Hook Hook Clamp Clamp Front Front ...

Page 165: ...nfidential 3 32 20 Wireless LAN PCB ASSY MFC 9840CDW only Wireless LAN PCB ASSY Hook Hook Hook Hole Hook Hook Hole Joint cover ASSY Joint cover ASSY Hole Main PCB ASSY Wireless LAN PCB harness Front Front ...

Page 166: ...hone line the USB cable if connected the LAN cable if connected the USB cable for PictBridge if connected and the modular jack of the external telephone set if connected 2 Remove the Paper tray the Toner cartridge x 4 the Drum unit the Belt unit and the Waste toner box Toner cartridge Drum unit Belt unit Waste toner box Paper tray ...

Page 167: ...r ASSY Engine PCB ASSY Main PCB ASSY Ground plate Ground spring plate Develop drive motor ASSY Drum drive ASSY Drum phase sensor PCB ASSY 1 2 Drive frame unit ASSY Paper feed belt cleaner motor ASSY Drum lock lever L Belt cleaner release sensor PCB ASSY Toner sensor PCB ASSY K Y M C TE NEW New toner actuator New toner actuator spring Develop release sensor PCB ASSY Drum unit fan OPC Develop press ...

Page 168: ...oose the Separation pad spring Fig 3 1 2 Push both sides of the Separation pad ASSY inwards to release the Pins and remove the Separation pad ASSY from the Paper tray 3 Remove the Separation pad spring from the Paper tray Fig 3 2 Hook Hook Separation pad ASSY Separation pad ASSY Pin Pin Paper tray Paper tray 2b 2a 2a Front Front Separation pad spring Separation pad spring ...

Page 169: ...ite screws and then remove the Tray cover ASSY Fig 3 3 5 Turn the paper tray upside down 6 Release the two Hooks to remove the Paper guide DX ASSY Fig 3 4 Taptite bind B M4x12 Tray cover ASSY Top of paper tray Hook Hook Paper guide DX ASSY Bottom of tray ...

Page 170: ... the two Bosses to remove the DX feed ASSY Fig 3 5 8 3 MP Cover ASSY MP Paper Guide ASSY 1 Open the MP cover ASSY Fig 3 6 MP paper guide ASSY MP cover ASSY Front DX feed ASSY Boss Boss DX feed ASSY Release the boss on the right hand side first DX feed ASSY Hooks DX hook ASSY Hook Top view Side view ...

Page 171: ... up the MP paper guide ASSY align the MP paper guide ASSY with section A of the MP lower chute Bend section A then remove the MP paper guide ASSY Fig 3 8 MP paper guide ASSY MP cover ASSY MP paper guide ASSY Boss Boss MP cover ASSY 3a Front Front A MP paper guide ASSY MP lower chute 3b ...

Page 172: ...m the Front door main Fig 3 9 Assembling Note When assembling the MP paper guide ASSY note the assembling method referring to the figure below Fig 3 10 Front door main Boss MP cover ASSY Front MP paper guide ASSY Boss A Boss A Boss B Boss B MP paper guide ASSY Boss Boss MP cover ASSY Front door main Boss ...

Page 173: ...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 3 11 3 Remove the MP lift arm 2 Fig 3 12 Hooks MP feed frame cover Front door unit ASSY Front door unit ASSY MP lift arm 2 Front Front ...

Page 174: ...h MP from the shaft of the MP roller holder ASSY Fig 3 13 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 14 MP roller holder ASSY Front door unit ASSY MP roller holder ASSY Hook Holder bush MP Front door unit ASSY 4a 5a 5b Front Front ...

Page 175: ...aration 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 15 Separation pad ASSY MP Front door unit ASSY Front Separation pad spring MP 6a 6b ...

Page 176: ...Turn each of the two Cord holders at the angle of 90 degrees and remove them from the Back cover upper and Side cover R ASSY Fig 3 16 2 Open the Back cover Fig 3 17 Back side Back cover Back side Back cover upper Cord holder 1a 1b Side cover R ASSY Cord holder ...

Page 177: ...ng 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 19 When assembling or disassembling the fuser unit the sponge on the HV TR top cover might get scraped If it is scraped remove the scraped waste and clean the feeding path After replacing the fus...

Page 178: ... 6 Back Cover Upper 1 Remove the two cup S M3x8 Taptite screws and then remove the Back cover upper Note Be careful not to break the plastic As this can be difficult to remove and reassemble Fig 3 21 Back cover upper Taptite cup S M3x8 Back side Toner filter frame ASSY Paper eject ASSY DX 4a 4b ...

Page 179: ...Taptite screw and then remove the Drive shaft holder Fig 3 22 2 Release the Hook to remove the Fuser drive gear 18 from the shaft Fig 3 23 Fuser drive gear 18 Paper eject ASSY DX Drive shaft holder Taptite bind B M3x10 Hook Paper eject ASSY DX Back side Back side 1a 1b ...

Page 180: ...tion 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 25 Taptite cup S M3x6 Taptite cu...

Page 181: ...on of the arrow 3 to align it with the screw hole of the Paper eject ASSY DX and secure the Drive shaft holder with the bind B M3x10 Taptite screw Fig 3 26 8 8 Back Cover ASSY 1 Remove the two cup S M3x8 Taptite screws and then remove the Back cover ASSY Fig 3 27 Hole Paper eject ASSY DX Paper eject ASSY DX Taptite bind B M3x10 Hook Pin Drive shaft holder Drive shaft holder Hole of screw Shaft of ...

Page 182: ...ting it up slightly Note When removing the Paper guide be careful not to damage the two Ribs Fig 3 28 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 29 Boss Hook Transfer HVPS PCB unit Boss Hook Paper guide HV TR top cover Hooks Transfer HVPS PCB unit Hooks Back side Back side Ribs ...

Page 183: ...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 31 Connector Transfer HVPS PCB unit Electrode head Registration relay PCB ASSY Transfer HVPS PCB unit Back side Back side ...

Page 184: ...11 Registration mark Sensor PCB ASSY 1 2 Density Sensor Registration Relay PCB ASSY Transfer HVPS PCB ASSY 1 Remove the bind B M3x8 Taptite screw and then remove the Earth plate 3 Fig 3 33 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 185: ...rews and then remove the Density shield plate 1 Fig 3 34 3 Remove the cup S M3x6 Taptite screw and then remove the Earth plate 2 Fig 3 35 Taptite bind B M3x8 Transfer HVPS PCB unit Density shield plate 1 Transfer HVPS PCB unit Taptite cup S M3x6 Earth plate 2 ...

Page 186: ... 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 37 Taptite bind B M3x8 Transfer HVPS PCB unit CN3 Blue Registration relay PCB ASSY Registration mark sensor PCB ASSY 1 Transfer HVPS PCB unit CN4 White Registration relay PCB ASSY Taptite bind B M3x8 Registration mark sensor PCB ASSY 2 C...

Page 187: ...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 39 Density sensor Taptite bind B M3x8 Registration relay PCB ASSY CN7 Transfer HVPS PCB unit Connector...

Page 188: ...Transfer HVPS PCB unit Fig 3 40 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 41 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 Bottom 11a 11b ...

Page 189: ...ng 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 42 Registration relay PCB ASSY B A Transfer HVPS PCB unit Bottom ...

Page 190: ...ounterclockwise 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 ASSY Fig 3 44 Hook Taptite cup B M4x12 Tightening torque 1 20 0 1 N m...

Page 191: ...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 192: ...ct the Connector from the Engine PCB ASSY and then remove the Drum unit fan OPC Fig 3 46 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 193: ...o damage section A Fig 3 47 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 194: ...the Paper stopper and release the Pins on both sides Fig 3 48 3 Turn the Paper stopper in the direction of arrow 3a and remove it from the Joint cover ASSY Fig 3 49 Paper stopper Paper stopper Pin Pin Document scanner unit ASSY Paper stopper Joint cover ASSY 3a 3a 3b Joint cover ASSY ...

Page 195: ... S M3x6 Taptite screw and then remove the FG harness ADF 4 Remove the cup S M3x6 Taptite screw and then remove the FG harness FB 5 Remove the Driver PCB ASSY and Driver PCB shield Fig 3 51 Driver PCB ASSY CN4 CN1 CN2 CN3 Document scanner unit ASSY Taptite cup S M3x6 FG harness FB Document scanner unit ASSY Driver PCB shield Driver PCB ASSY FG harness ADF Taptite cup S M3x6 Left side Left side Main...

Page 196: ...ntial 3 63 6 Remove the two cup S M3x6 Taptite screws and then remove the Driver PCB ASSY from the Driver PCB shield Fig 3 52 Driver PCB ASSY Driver PCB ASSY Taptite cup S M3x6 Driver PCB shield Groove Groove ...

Page 197: ...able 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 53 3 Remove the three cup B M4x12 Taptite screws and then remove the Hinge protection cover ASSY Fig 3 54 Document scanner unit ASSY Main PCB ASSY CN21 CN14 CN16 Flat cable CN17 Left side Back side Docu...

Page 198: ...e Document scanner unit ASSY Fig 3 55 5 Remove the Left and Right Pull arms and Pull arm springs from the Pull arm guide Fig 3 56 Pull arm R Document scanner unit ASSY Pull arm L Joint cover ASSY Pull arm R Pull arm L Document scanner unit ASSY Pull arm spring L Pull arm spring R Hook Hook Pull arm guide Pull arm guide Hook Hook ...

Page 199: ...anner unit ASSY from the Joint cover ASSY by lifting upwards Fig 3 57 7 Remove the two Hinges from the Document scanner unit ASSY Fig 3 58 Joint cover ASSY Document scanner unit ASSY Back side Document scanner unit ASSY Taptite bind B M4X12 Taptite bind B M4X12 Hinge Hinge Back side Hinge Hinge ...

Page 200: ...idential 3 67 8 Remove the two bind B M4x12 Taptite screws and then remove the ADF unit from the Document scanner unit Fig 3 59 ADF unit Document scanner unit Taptite bind B M4x12 Taptite bind B M4x12 8a 8b ...

Page 201: ...it upside down 2 Remove the Hinge arm R from the Hinge base R Fig 3 60 3 Remove the three cup B M3x10 Taptite screws and then remove Hinge base R Fig 3 61 Taptite cup B M3x10 Hinge base R ADF unit Bottom Hinge arm R Hinge base R ADF unit Bottom 2a 2b ...

Page 202: ...p B M3x10 Taptite screws and then remove the Hinge ASSY L Fig 3 62 5 Place the ADF unit the correct way up and then remove the ADF cover ASSY from the ADF unit Fig 3 63 Taptite cup B M3x10 Hinge ASSY L ADF unit Bottom ADF cover ASSY ADF unit ...

Page 203: ...ttom of the ADF unit and remove the ADF front cover 1 from the ADF unit Fig 3 64 8 Lift up the top end of the Document tray ASSY and release the two Hooks Then pull it out of the ADF unit Fig 3 65 ADF front cover 1 Taptite cup S M3x8 SR Taptite cup B M3x10 Latch Hook ADF unit Hook Hook Document tray ASSY ADF unit 8a 8b Front Left side Hook Latch ...

Page 204: ...tite screw from the ADF back cover 10 Release the Hook A and Hook B from the bottom of the ADF unit and remove the ADF back cover Fig 3 66 ADF back cover ADF unit Hook A Hook Latch Taptite cup B M3x10 10a 10b Left side Back side Hook B Hook A Latch ...

Page 205: ...isconnect the Connector of the ADF motor harness from the ADF motor 13 Remove the cup S M3x8 SR Taptite screw and then remove the FG harness ADF Fig 3 67 Connector ADF motor Taptite cup S M3x8 SR FG harness ADF ADF relay PCB ASSY ADF relay PCB ASSY ADF relay PCB ASSY CN2 CN3 CN4 CN7 CN6 CN1 CN5 ...

Page 206: ... sub ASSY Fig 3 68 15 Remove the two cup S M3x8 SR Taptite screws and then remove the SB chute ASSY from the ADF chute ASSY Fig 3 69 SB chute ASSY Taptite cup S M3x8 SR Taptite cup S M3x8 SR ADF chute ASSY Taptite cup B M3x10 Taptite cup B M3x10 Taptite cup B M3x10 Taptite cup B M3x10 Document cover sub ASSY ADF chute ASSY ...

Page 207: ...ADF chute ASSY upside down 17 Remove the four cup B M3x10 Taptite screws and then remove the Exit chute cover ASSY from the ADF chute ASSY Fig 3 70 Taptite cup B M3x10 Taptite cup B M3x10 Exit chute cover ASSY ADF chute ASSY Bottom ...

Page 208: ... Fig 3 71 Assembling Note When assembling the Earth spring ensure that the end of the Earth spring is attached onto the Antistatic brush as shown in the figure below Fig 3 72 Exit chute cover ASSY Earth spring Antistatic brush Antistatic brush Exit chute cover ASSY Earth spring Hooks Hook Rib Antistatic brush Earth spring ...

Page 209: ...21 Release the Hooks of the Conductive bush A to remove the Conductive bush A 22 Remove the Bush from the ADF chute ASSY and remove the PF roller holder ASSY from the ADF chute ASSY Fig 3 73 Bush PF roller holder ASSY Conductive bush A Hooks ADF chute ASSY 21 22a 22b ...

Page 210: ...DF chute ASSY and remove the LF roller 1 ASSY from the ADF chute ASSY Fig 3 74 Assembling Note When assembling the LF roller 1 ASSY assemble the Bush with aligning the Boss of the Bush with the notch on the ADF chute ASSY Fig 3 75 Hooks Conductive bush A LF roller 1 ASSY Bush ADF chute ASSY ADF chute ASSY Boss Bush 23 24a 24b ...

Page 211: ...e ADF chute ASSY and remove the SB roller ASSY from the ADF chute ASSY Fig 3 76 Assembling Note When assembling the SB roller ASSY assemble the Bush with aligning the Boss of the Bush with the notch on the ADF chute ASSY Fig 3 77 Hooks Conductive bush A SB roller ASSY Bush ADF chute ASSY ADF chute ASSY Bush Boss 25 26a 26b ...

Page 212: ... roller ASSYs when disassembling them Failure to assemble each roller ASSY onto the correct position may cause paper jam or stretching image 27 Remove the two screw pan S P washer M3x6 and then remove the ADF motor Fig 3 79 ADF motor Screw pan S P washer M3x6 Motor frame ASSY DX LF roller 3 ASSY LF roller 2 ASSY LF roller 4 ASSY SB roller ASSY Gray Identify the rollers by the shades Light purple E...

Page 213: ...the Motor frame ASSY DX Fig 3 80 Assembling Note When assembling the Motor frame ASSY DX ensure that the gears indicated with gray are placed in the positions as shown in the figure below Fig 3 81 Motor frame ASSY DX Taptite cup S M3x8 SR Screws Screw A view A view Motor frame ASSY DX ...

Page 214: ...and then remove the S B solenoid ASSY Fig 3 82 30 Remove the cup S M3x8 SR Taptite screw and then Remove the PF solenoid ASSY Fig 3 83 Motor frame ASSY DX S B solenoid ASSY Taptite cup S M3x8 SR PF solenoid ASSY Taptite cup S M3x8 SR Motor frame ASSY DX 29a 29b ...

Page 215: ... remove the ADF relay PCB ASSY Fig 3 84 32 Remove the two cup S M3x8 SR Taptite screws and then remove the Paper feed plate Fig 3 85 Motor frame ASSY DX Taptite cup S M3x8 SR ADF relay PCB ASSY Paper feed plate Taptite cup S M3x8 SR Taptite cup S M3x8 SR ADF chute ASSY ...

Page 216: ...e ASSY upside down 35 Release the Hooks of the Photo interrupter to remove the Photo interrupter from the Paper feed chute ASSY 36 Disconnect the Connector from the Photo interrupter Fig 3 87 Taptite cup S M3x8 SR Taptite cup S M3x8 SR Paper feed chute ASSY Connector Photo interrupter Hook Hook Hook Paper feed chute ASSY Bottom ADF chute ASSY ...

Page 217: ...ont 1 to remove Fig 3 88 38 Release the Hooks of the Photo interrupter to remove the Photo interrupter from the Paper feed chute ASSY 39 Disconnect the Connector from the Photo interrupter Fig 3 89 Paper feed chute ASSY Actuator front 1 Stopper Bottom Connector Photo interrupter Hook Hook Paper feed chute ASSY Bottom ...

Page 218: ...Confidential 3 85 40 Push down the Stopper slide the Actuator front 2 to the stopper side and pull up the Actuator front 2 to remove Fig 3 90 Actuator front 2 Paper feed chute ASSY Stopper Bottom ...

Page 219: ...k sheet ADF 44 Remove the Separation rubber 45 Release the two Hooks and then remove the Rubber holder 46 Remove the Separation spring Fig 3 91 Taptite screw B M3x6 Spring plate ADF front ASSY Separation rubber Separation spring Rubber holder Rubber holder Paper feed chute ASSY Spring plate ADF front ASSY Bottom Back sheet ADF ADF film Hooks ...

Page 220: ...ure below while holding the Presser roller and remove the Presser roller shaft from the Hook 48 Pull the Presser roller shaft out of the Presser roller 49 Remove the two LF springs Fig 3 92 Presser roller LF spring Presser roller shaft LF spring Hook Bottom 47a 47b 48 Paper feed chute ASSY ...

Page 221: ...DF chute ASSY and remove the LF roller 2 ASSY from the ADF chute ASSY Fig 3 93 Assembling Note When assembling the LF roller 2 ASSY assemble the Bush with aligning the Boss of the Bush with the notch on the ADF chute ASSY Fig 3 94 Hooks ADF chute ASSY Conductive bush A LF roller 2 ASSY Bush ADF chute ASSY Boss Bush 51a 51b 50 ...

Page 222: ... chute ASSY and remove the Exit roller ASSY from the ADF chute ASSY Fig 3 95 Assembling Note When assembling the Exit roller ASSY assemble the Bush with aligning the Boss of the Bush with the notch on the ADF chute ASSY Fig 3 96 Hooks Conductive bush A Exit roller ASSY ADF chute ASSY Bush ADF chute ASSY Boss Bush 52 53a 53b 53c ...

Page 223: ...ush from the ADF chute ASSY and remove the LF roller 3 ASSY from the ADF chute ASSY Fig 3 97 Assembling Note When assembling the LF roller 3 ASSY assemble the Bush with aligning the Boss of the Bush with the notch on the ADF chute ASSY Fig 3 98 Bush LF roller 3 ASSY Conductive bush A ADF chute ASSY Hooks Bottom ADF chute ASSY Boss Bush 56b 56a 56c 55 ...

Page 224: ...e ASSY Fig 3 99 Assembling Note When attaching the LF4 films make sure the positions referring to the figure below Fig 3 100 LF4 films LF4 films ADF chute ASSY LF4 films LF4 films Bottom ADF chute ASSY LF4 films LF4 films Top view of the bottom of the ADF chute ASSY ...

Page 225: ...ute ASSY and remove the LF roller 4 ASSY from the ADF chute ASSY Fig 3 101 Assembling Note When assembling the LF roller 4 ASSY assemble the Bush with aligning the Boss of the Bush with the notch on the ADF chute ASSY Fig 3 102 LF roller 4 ASSY Bush Conductive bush A Hooks ADF chute ASSY Bottom ADF chute ASSY Boss Bush 58 59a 59b ...

Page 226: ...he Gear ASSY 62 Remove the Flap A ASSY from the ADF chute ASSY Fig 3 103 63 Push the Hooks to the direction of the arrows 63a as shown in the figure below to remove the Document hold Fig 3 104 Hooks Conductive bush A Flap A ASSY Hook Gear ASSY ADF chute ASSY Bottom Hook Hook Hook Hook Hook Document hold ADF chute ASSY Bottom 61 62 60 63a 63b 63a ...

Page 227: ...ing Fig 3 105 Assembling Note When assembling the Document hold spring make sure the assembled position referring to the figure below Fig 3 106 Hooks Hook ADF chute ASSY Bottom Document hold spring Document hold spring ADF chute ASSY Hooks Top view of the bottom of the ADF chute ASSY ...

Page 228: ...he three cup B M3x10 Taptite screws and then remove the Drive frame sub ASSY Fig 3 107 67 Remove the three cup B M3x10 Taptite screws and then remove the Front frame Fig 3 108 ADF chute ASSY Drive frame sub ASSY Taptite cup B M3x10 Taptite cup B M3x10 Front frame ADF chute ASSY ...

Page 229: ...n chute ASSY from the Lower main chute ASSY Fig 3 109 69 Turn the Actuator R to the direction of the arrow 69a and pull it out to the direction of the arrow 69b Fig 3 110 Taptite cup B M3x10 Taptite cup B M3x10 Upper main chute ASSY Lower main chute ASSY Lower main chute ASSY Actuator R 69a 69b ...

Page 230: ...ove the Photo interrupter from the Lower main chute ASSY 71 Disconnect the Connector from the Photo interrupter Fig 3 111 72 Remove the Flap B from the Lower main chute ASSY Fig 3 112 Connector Photo interrupter Hook Hook Lower main chute ASSY Flap B Lower main chute ASSY ...

Page 231: ...or SB to remove Fig 3 113 74 Release the Hooks of the Photo interrupter to remove the Photo interrupter from the Lower main chute ASSY 75 Disconnect the Connector from the Photo interrupter Fig 3 114 Lower main chute ASSY Stopper Actuator SB Stopper Lower main chute ASSY Connector Photo interrupter Hook Hook ...

Page 232: ...p from the Document cover sub ASSY Fig 3 115 77 Release the four Hooks and two bosses to remove the Dressing cover ADF 1 Fig 3 116 ADF document output support flap Document cover sub ASSY Hooks Hooks Boss Boss Dressing cover ADF 1 Document cover sub ASSY Left side ...

Page 233: ...ressing cover ADF 2 Fig 3 117 81 Place the Document cover sub ASSY the correct way up 82 Remove the cup B M3x10 Taptite screw from the ADF front cover 2 83 Release the Hook to remove the ADF front cover 2 Fig 3 118 Hooks Hook Dressing cover ADF 2 Document cover sub ASSY Taptite cup B M3x10 Document cover sub ASSY Taptite cup B M3x10 Hook ADF front cover 2 83a 83b Left side Front ...

Page 234: ...oks of the Document cover sensor Fig 3 119 86 Turn the Document cover sub ASSY upside down 87 Remove the two cup B M3x10 Taptite screws and then remove the Handle cover Fig 3 120 Hook Connector Document cover sub ASSY Hook Document cover sensor Document cover sensor Boss Document cover sub ASSY Handle cover Taptite cup B M3x10 Bottom Left side Document cover sensor Document cover sub ASSY ...

Page 235: ...ight Hooks to remove the Printed panel cover from the Document scanner unit Fig 3 121 2 Remove the Address label from the Printed panel cover Fig 3 122 Hooks Printed panel cover Hooks Hooks Hooks Document scanner unit Address label Printed panel cover ...

Page 236: ...p the Panel unit slightly from the Document scanner unit Fig 3 123 4 Gently lift up the Panel unit slightly and disconnect the Connector CN1 from the Panel unit Fig 3 124 Taptite cup B M3x10 Taptite cup B M3x10 Panel unit Document scanner unit Panel unit CN1 Document scanner unit ...

Page 237: ...nnecting 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 3 125 7 Release the eight Hooks to remove the Panel PCB ASSY from the Panel unit Fig 3 126 Panel PCB ASSY CN3 Flat cable CN4 Panel PCB ASSY Hooks Hooks Hooks Hooks Panel unit CN3 Flat c...

Page 238: ...sheets 10 Release the two Hook A to remove the LCD cover and LCD ASSY from the Panel cover Note Be careful not to loose the LED guide Fig 3 128 Hooks Hooks Hooks Hooks Hooks Panel unit Rubber key R Hook Rubber key L Rubber key C LCD ASSY Hook A Panel cover LCD cover Panel insulation sheets LED guide Hook Hook ...

Page 239: ...Confidential 3 106 11 Remove the LCD from the Backlight module Fig 3 129 LCD Backlight module ...

Page 240: ...Fig 3 130 3 Remove the three cup B M4x12 Taptite screws 4 Release the three Bosses in the order of 4a to 4b to remove the Dressing cover FB FR from the Document scanner unit Fig 3 131 Taptite cup B M4x12 Taptite cup B M4x12 Document scanner unit Dressing cover FB FL Boss Bosses Left side Dressing cover FB FR Taptite cup B M4x12 Taptite cup B M4x12 Bosses Boss Document scanner unit Right side 2a 2b...

Page 241: ...ions A and B of the Dressing cover FB top 7 Slide the Dressing cover FB top in the direction of the arrow to release the Hook and remove it Fig 3 133 Taptite cup B M4x12 Document scanner unit Dressing cover FB top Left side Dressing cover FB top Hook Document scanner unit Left side A B 7a 7b ...

Page 242: ...Scanner top cover ASSY from the Scanner base ASSY Fig 3 134 9 Turn the Scanner top cover ASSY upside down Remove the two cup B M3x6 Taptite screws and then remove the Lock lever ASSY Fig 3 135 Scanner top cover ASSY Scanner base ASSY Taptite cup B M4x12 Taptite cup B M4x12 Taptite cup B M4x12 Scanner top cover ASSY Taptite B M3x6 Lock lever ASSY Bottom ...

Page 243: ...ull the Guide shaft out of the CCD unit Fig 3 136 Assembling Note When assembling the CCD unit ensure to put the front side of the CCD drive belt into the slit A of the CCD unit Fig 3 137 Scanner base ASSY CCD unit Guide shaft 10a 10b CCD unit CCD drive belt CCD drive belt A ...

Page 244: ...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 3 138 12 Push the Pulley ASSY to the direction of the arrow 12a and remove the CCD drive belt Fig 3 139 CCD unit Double faced adhesive tape FFC cable ASSY Connector CCD drive belt Pulley ASSY 12a 12...

Page 245: ... adhesive tape and remove the Shield sponge from the Scanner base ASSY 16 Remove the FFC cable ASSY from the Scanner base ASSY and then remove the Flat core from the FFC cable ASSY Fig 3 141 Taptite cup B M3x8 FFC plate Hooks Scanner base ASSY FFC cable ASSY Shield sponge Scanner base ASSY Flat core Hook Hook FFC plate Scanner base ASSY Top view of the bottom of the Scanner base ASSY ...

Page 246: ...M3x8 Taptite screws and then remove the Drive plate ASSY Fig 3 142 19 Remove the two Screws pan S P washer M3x6 and then remove the Scanner motor Fig 3 143 FG harness FB Taptite cup S M3x6 Taptite pan B M3x8 Taptite pan B M3x8 Drive plate ASSY Scanner base ASSY Screw pan S P washer M3x6 Drive plate ASSY Scanner motor ...

Page 247: ...e the Pulley ASSY 21 Remove the Pulley spring Fig 3 144 22 Release the Hooks to remove the Photo interrupter 23 Disconnect the Connector from the Photo interrupter Fig 3 145 Taptite pan B M3x6 Pulley spring Pulley ASSY Photo interrupter Hooks Hook Connector Scanner base ASSY ...

Page 248: ... Turn the Scanner base ASSY upside down 26 Remove the two cup B M4x12 Taptite screws and then remove the Dressing cover FB base L from the Scanner base ASSY Fig 3 147 Taptite cup B M3x8 Scanner base ASSY Scanner base ASSY Dressing cover FB base L Taptite cup B M4x12 Bottom Dressing cover FB base L ...

Page 249: ...Remove the three cup B M4x12 Taptite screws from the Dressing cover FB base R 28 Remove the Dressing cover FB base R from the Scanner base ASSY Fig 3 148 Scanner base ASSY Dressing cover FB base R Taptite cup B M4x12 Bottom ...

Page 250: ... S P washer M3 5x6 and then remove the FG harness NCU Fig 3 149 3 Remove the four bind B M4x12 Taptite screws and then remove the NCU cover from the Joint cover ASSY Fig 3 150 Main PCB ASSY Joint cover ASSY CN7 Screw pan S P washer M3 5x6 FG harness NCU Left side NCU cover Joint cover ASSY Taptite bind B M4x12 Taptite bind B M4x12 ...

Page 251: ...en remove the NCU unit from the Joint covers ASSY Fig 3 151 6 Remove the Screw pan S P washer M3 5x6 and then remove the NCU shield plate from the NCU shield cover Fig 3 152 NCU unit Taptite bind B M4x12 Screw pan S P washer M3 5x6 FG harness NCU Joint covers ASSY Taptite bind B M4x12 Screw pan S P washer M3 5x6 NCU shield plate NCU shield cover ...

Page 252: ...al 3 119 7 Remove the two cup S M3x6 Taptite screws and then remove the NCU PCB ASSY 8 Disconnect the connector of the NCU harness ASSY Fig 3 153 NCU PCB ASSY Taptite cup S M3x6 NCU shield cover NCU harness ASSY ...

Page 253: ...ect the connector from the Battery ASSY Caution There is danger of explosion if the battery is incorrectly replaced Do not disassemble or recharge the battery Do not dispose of the battery in fire Used batteries should be disposed according to the local regulations Fig 3 154 Battery ASSY Connector Joint cover ASSY Hook ...

Page 254: ...he Joint cover ASSY 2 Remove the bind B M4x12 Taptite screw and then remove the Pull arm guide R from the Joint cover ASSY Fig 3 155 3 Disconnect the two Connectors CN2 CN3 from the Main PCB ASSY CN2 MFC 9840CDW only Fig 3 156 Pull arm guide L Joint cover ASSY Taptite bind B M4X12 Main PCB ASSY CN2 CN3 Side frame L Left side ...

Page 255: ...crews from the left side Fig 3 157 5 Remove the one cup S M3x8 Taptite screw and two bind B M4x12 Taptite screws from the back side of the Joint cover ASSY Fig 3 158 Joint cover ASSY Taptite cup S M3x8 Taptite cup S M3x8 Front Taptite cup S M3x8 Left side Back side Taptite bind B M4x12 Taptite cup S M3x8 Taptite bind B M4x12 Joint cover ASSY ...

Page 256: ...oint cover ASSY from the Frame unit Fig 3 159 7 Turn the Joint cover ASSY up side down 8 Remove the two bind B M4x12 Taptite screws and then remove the Joint cover FR from the Joint cover ASSY Fig 3 160 Taptite cup S M4x8 Taptite cup S M4x8 Joint cover ASSY Taptite bind B M4x12 Joint cover FR Hook Joint cover ASSY Pin Bottom Frame unit Hooks Hook Hook Front ...

Page 257: ...oint cover FL from the Joint cover ASSY Fig 3 161 11 Remove the three bind B M3x8 Taptite screws and then remove the Top cover USB front ASSY Fig 3 162 Taptite bind B M4x12 Joint cover ASSY Joint cover FL Boss Hook Hook Taptite bind B M3x8 Joint cover FL Top cover USB front ASSY Taptite bind B M3x8 Hook Bottom Bottom ...

Page 258: ...e USB holder and USB host relay PCB ASSY Fig 3 163 13 Disconnect the Main USB host harness ASSY from the USB host relay PCB ASSY Fig 3 164 USB holder Taptite bind B M3x8 Taptite bind B M3x8 USB host relay PCB ASSY Joint cover FL Main USB host harness ASSY USB host relay PCB ASSY Bottom ...

Page 259: ...40CDW only 15 Disconnect the connector from the Wireless LAN PCB ASSY MFC 9840CDW only Fig 3 165 16 Release the Hook to remove the Wireless LAN PCB ASSY from the Wireless LAN PCB holder MFC 9840CDW only Fig 3 166 Wireless LAN PCB ASSY Taptite bind B M4x12 Connector Joint cover ASSY Wireless LAN PCB ASSY Wireless LAN PCB holder Hook Bottom ...

Page 260: ...move the Paper stopper guide from the Paper chute Fig 3 167 8 25 Speaker ASSY 1 Disconnect the connector CN10 from the Main PCB ASSY Fig 3 168 Speaker ASSY Main PCB ASSY CN10 Bottom Paper chute Paper stopper guide Hook 17a 17b Hook Hook Left side ...

Page 261: ...holder Fig 3 169 3 Remove the cup S M3x6 Taptite screw and then remove the Speaker hold spring 4 Remove the Speaker ASSY from the Speaker holder Fig 3 170 Speaker holder Taptite cup S M3x6 Bosses Speaker hold spring Taptite cup S M3x6 Speaker ASSY Speaker holder Scanner cover Left side ...

Page 262: ...Then turn the Roller holder ASSY to the direction of the arrow 1b Fig 3 171 2 Slide the Roller holder ASSY to the direction of the arrows 2a 2b and 2c in this order and remove it Fig 3 172 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 Upper side Front ...

Page 263: ... 3 173 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 3 174 Paper feed frame unit Taptite cup S M3x6 Taptite bind B M3X10 Taptite bind B M3X10 Engine PCB ASSY 3a 3b Front ...

Page 264: ...ential 3 131 4 Release the two Hooks to remove the PF CR harness holder Fig 3 175 5 Remove the Harness from the PF CR harness holder Fig 3 176 Harness PF CR harness holder PF CR harness holder Hook Hook Front ...

Page 265: ...feed frame Fig 3 177 7 Release the Hook of the Separation roller bush to remove it Then remove the Separation roller drive shaft Fig 3 178 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 266: ...tuator and remove the Edge actuator spring Fig 3 179 9 Release the three Hooks to remove the T1 PE edge sensor PCB ASSY Fig 3 180 Edge actuator PE actuator Edge actuator spring Paper feed frame T1 PE edge sensor PCB ASSY Hook Hook Hook Upper side Upper side ...

Page 267: ...per feed 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 similar and push to the back of the machine The section B shown in Fig 3 183 in the next page can be moved up and down by this operation which makes it easy to assemble the lift arm Fig 3 181 PU ...

Page 268: ...of the Lift arm goes down That makes easy to push the end of the Lift arm under the section B shown in Fig 3 182 Fig 3 182 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 make sure to 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 machin...

Page 269: ...t While 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 3 185 Paper feed frame unit Gear Feed roller shaft TR Feed roller shaft TR C Front Left side Separation roller Roller holder ASSY Side frame...

Page 270: ...moved smoothly 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 with the front door unit ASSY 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 sli...

Page 271: ... Fig 3 188 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 3 189 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 Bottom of case ...

Page 272: ...he Connector from the Belt cleaner release sensor PCB ASSY Fig 3 190 8 29 THM HUM Sensor Holder ASSY 1 Disconnect the Connector CN35 from the Engine PCB ASSY CN35 Fig 3 191 Connector Belt cleaner release sensor PCB ASSY Engine PCB ASSY ...

Page 273: ...n remove the THM HUM ground plate 3 Remove the four cup S M3x6 Taptite screws 4 Release the two Hooks to remove the THM HUM sensor holder ASSY Fig 3 192 Taptite cup S M3x6 Taptite cup S M3x6 Hook Hook THM HUM sensor holder ASSY Frame unit Left side THM HUM ground plate ...

Page 274: ... 193 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 3 194 Taptite cup B M3x8 Release rack plate Release rack Release rack spring Hook Release rack spring Frame unit Left side ...

Page 275: ...ite screw and then remove the Front door unit earth Fig 3 195 2 Disconnect the six connectors CN2 CN3 CN4 CN7 CN8 CN9 from the Engine PCB ASSY CN2 CN7 CN8 CN9 CN3 CN4 Fig 3 196 Front door unit ASSY Front door unit earth Taptite cup S M3x6 Engine PCB ASSY Frame unit Left side ...

Page 276: ...port rope from the Shaft Fig 3 197 4 Remove the Collar 3 from the Hinge shaft L and then remove the Hinge shaft L from the Hinge plate L Fig 3 198 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 Left side Hinge plate L ...

Page 277: ...nt door unit ASSY from Frame unit Fig 3 199 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 3 200 Front door unit ASSY Collar 3 Hinge shaft R Frame unit Front Shoulder screw Shoulder screw Shaft Shaft Wire rope Wire rope Hinge plate R ...

Page 278: ...ign the Front door unit ASSY with the Hinge as shown in the figure below Fig 3 201 8 32 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 3 202 Front door unit ASSY Frame unit Harness cover MP Taptite cup S M3x6 Front door unit ASSY Hinge Hook Front ...

Page 279: ...emove the five cup B M4x10 Taptite screws and one cup B M3x8 Taptite screw and then remove the Front door sub Fig 3 203 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 280: ...204 2 Remove the two bind B M3x8 Taptite screws and then remove the EL spring harness ASSY white red and EL electrode spring L R Fig 3 205 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 281: ...0 Taptite screws Fig 3 206 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 3 207 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 282: ... Hook cover Fig 3 208 5 Release the two Hooks to remove the Front door Main from the Front door unit ASSY Fig 3 209 Hook cover Front cover release button Button spring Front door unit ASSY Hooks Front door main Right side Left side Front cover release button Button spring Hooked Hooked ...

Page 283: ... Remove the Hook and Hook spring R from the MP unit ASSY in the same way Fig 3 211 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 284: ... 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 3 212 2 Remove the five cup S M3x6 Taptite screws and then remove the Engine PCB ASSY from the Frame unit Fig 3 213 Engin...

Page 285: ...n 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 cable i...

Page 286: ...Confidential 3 153 4 Remove the cup S M3x6 Taptite screw and then remove the Main PCB ASSY as shown by arrows 4a and 4b Fig 3 216 Taptite cup S M3x6 Main PCB ASSY Frame unit Left side 4a 4b ...

Page 287: ...remove the Waste toner sensor holder from the Middle plate Fig 3 217 2 Release the Hook to remove the Waste toner sensor cover from the Waste toner sensor holder Fig 3 218 Waste toner sensor holder Positioning pin Hook Waste toner sensor cover Waste toner sensor holder Middle plate Hook Hook Hook Middle plate 1a 1b Front 1b Figure of the front view Left side ...

Page 288: ...he Waste toner sensor holder Fig 3 219 4 Disconnect the Connectors yellow and blue from each of the Waste toner sensors Fig 3 220 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 A view ...

Page 289: ...e top and 1 piece from the Front and then remove the Scanner cover Fig 3 222 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 Front ...

Page 290: ...the seven cup S M3x6 SR Taptite screws and then remove the four Scanner holders and Laser unit Fig 3 224 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...

Page 291: ...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 3 226 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 Left side Left side Taptite cup S M3x6 Hook Alum sheet frame 2 3 ...

Page 292: ...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 3 228 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 293: ...r plate ASSY Fig 3 229 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 3 230 Develop gear plate ASSY Friction cap Develop gear plate ASSY ...

Page 294: ...it to prevent them from going into the Develop gear plate ASSY Fig 3 231 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 3 232 Develop gear plate ASSY Develop gear plate ASSY Joint release lever Left side Harness Flat cable Frame unit ...

Page 295: ...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 3 233 Alum sheet frame Alum sheet frame Corner of the square hole Develop gear plate ASSY Flat cable ...

Page 296: ... plate which is fixed with a two sided adhesive tape Fig 3 234 2 Remove the three cup S M3x6 Taptite screws and then remove the Harness shield plate from the Frame unit Fig 3 235 Harness shield plate Engine insulation sheet Frame unit Harness shield plate Left side Left side Taptite cup S M3x6 Taptite cup S M3x6 Taptite cup S M3x6 ...

Page 297: ...ine PCB plate Fig 3 236 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 3 237 Engine PCB plate Frame unit Taptite cup S M3x6 Taptite cup S M3x6 Left side Engine PCB plate Hook A Drive frame unit ASSY ...

Page 298: ...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 3 239 Fig 3 239 Frame unit Taptite cup S M3x6 Drum drive motor 2 Taptite cup S M3x6 Drum drive motor 1 Left side Gears 39 121 Gears 39 121 Drum drive ASSY Align the mark on...

Page 299: ... 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 3 241 Taptite bind S M3x6 Drum p...

Page 300: ... 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 301: ... cleaner motor ASSY from the Drive frame unit ASSY Fig 3 243 Assembling Note Be sure to hook the harness of the Paper feed belt cleaner motor ASSY onto the Rib of the Side frame L as shown in the figure below Fig 3 244 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 Side frame L ...

Page 302: ...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 46 Develop Press Drive L ASSY 1 Remove the Pull up lever spring for L from the Hook of Develop press drive L ASSY Fig 3 246 Develop release sensor PCB ASSY Taptite cup B M3x8 Tigh...

Page 303: ... 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 3 248 Frame unit Taptite bind B M3X12 Tightening torque 0 80 0 1 N m 1 Develop press drive L ASSY Taptite bind B M3X12 Tightening torque 0 80 0 1 N m 1 Taptite...

Page 304: ...g is hooked is placed as shown in the figure below Fig 3 249 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 3 250 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 305: ... ASSY Fig 3 251 2 Remove the Front cover interlock switch ASSY from the Develop press drive L ASSY Fig 3 252 Interlock switch holder spring Develop press drive L ASSY Interlock harness guide Interlock harness guide Interlock switch holder spring Hook A Hook B Hook B Hook A Hook C Hook C Hook D Hook D Develop press drive L ASSY Front cover interlock switch ASSY ...

Page 306: ... 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 307: ...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 308: ...w For the method to arrange the harnesses refer to 5 Toner sensor PCB ASSY K Y M C TE NEW C M Y K Fig 3 255 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 309: ... TE NEW Fig 3 256 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 3 257 Toner sensor PCB ASSY TE NEW LED holder Hook Hook Toner sensor PCB ASSY TE NEW Shutter New toner actuator Sensor section ...

Page 310: ...the Frame unit and then remove the New toner actuator from the Fame unit Fig 3 258 2 Remove the New toner actuator spring from the New toner actuator Fig 3 259 New toner actuator spring Hook Frame unit New toner actuator 1a 1b Left side A New toner actuator Hook New toner actuator spring Hook Hook New toner actuator spring Hooked Hooked Hooked ...

Page 311: ...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 M3x6 Screw pan S P washer M4x8 DB Taptite cup B M4x12 Tightening torque 0 90 0 1 N m 1 Taptite cup S M3x...

Page 312: ... Drum lock lever L from the Frame unit Fig 3 261 Assembling Note Assemble the Drum lock lever so that both Drum lock lever R and L are in the same direction Fig 3 262 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 ...

Page 313: ... Drum lock lever R from the Frame unit Fig 3 263 Assembling Note Assemble the Drum lock lever so that both Drum lock lever R and L are in the same direction Fig 3 264 Screw bind M3x8 Frame unit Drum lock lever R Drum lock lever plate R ASSY Front Drum lock lever R Drum lock lever L Front Assemble so that they are in the same direction ...

Page 314: ...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 315: ...rge HVPS PCB ASSY check that these four parts are complete and that they move smoothly Fig 3 267 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 3 268 Air intake fan AIR Charge HVPS PCB ASSY Caution HVPS charge head spring HVPS charge head HVPS DEV head spring HVPS DEV head Frame R ...

Page 316: ...n remove the Toner LED PCB from the Frame unit Fig 3 269 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 3 270 Toner LED PCB Hook LED holder Hook Toner LED PCB Screw pan S P washer M3x16 Frame unit Right side ...

Page 317: ...ing the Fuser unit fan FU place it so that the attached Label faces outwards 8 56 LVPS Fan PS 1 Remove the LVPS fan PS from the Frame unit Fig 3 272 Assembling Note When assembling the LVPS fan PS place it so that the attached Label faces outwards Frame unit Fuser unit fan FU Frame unit LVPS fan PS Right side Right side Label Label ...

Page 318: ...Intake Fan AIR 1 Remove the Air intake fan AIR from the Frame unit Fig 3 273 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 319: ...0 insulation sheet from the PS PCB unit Fig 3 274 2 Remove the Power supply switch from the Belt gear plate ASSY by pushing the Hooks inwards Fig 3 275 LVPS insulation sheet LVPS V0 insulation sheet PS PCB unit Right side Hook Hook Belt gear plate ASSY Power supply switch Right side ...

Page 320: ...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 321: ...it CN2 CN101 CN102 CN103 Fig 3 278 Assembling Note Assemble the LVPS insulation sheet so that the section A is in the position as shown in the figure below Fig 3 279 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 322: ...ON OFF mark on the Power supply switch is aligned with the ON OFF mark imprinted on the Belt gear plate ASSY Fig 3 280 When assembling the PS PCB unit align it with the two Bosses on the Frame unit Fig 3 281 Belt gear plate ASSY Power supply switch Frame unit PS PCB unit Boss Boss ...

Page 323: ...t gear plate ASSY Fig 3 282 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 3 283 Belt gear plate ASSY Hooks Harness holder 16AWG Hook Right side Frame unit Taptite cup B M4x12 Screw cup M3x6 Taptite cup B M4x12 Belt gear plate ASSY Right side ...

Page 324: ... 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 LV fan duct Frame unit Taptite bind B M3X10 Tightening torque 0 80 0 1 N m...

Page 325: ...Confidential 3 192 6 Remove the two Screws bind M3x5 and then remove the Belt unit drive motor from the Motor plate P Fig 3 286 Screw bind M3x5 Belt unit drive motor Motor plate P ...

Page 326: ...ray and remove the paper from the LT paper tray Fig 3 287 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 3 288 LT paper tray Hooks LT separation pad spring Front LT separation pad ASSY ...

Page 327: ...ase the Pins and remove the LT separation pad ASSY from the LT paper tray Fig 3 289 4 Remove the LT separation pad spring from the LT paper tray Fig 3 290 LT separation pad ASSY Pin Pin 3b 3a 3a Front LT paper tray LT separation pad spring LT paper tray Front LT separation pad spring ...

Page 328: ...e the Pinch roller holder cover LT from the LT paper tray Fig 3 291 7 Remove the Pinch roller holder spring from the Rib of the LT paper tray Fig 3 292 Taptite bind B M4x10 Taptite bind B M4x10 Front LT paper tray Hook Hooks Hook Hook Pinch roller holder cover LT LT paper tray Front Pinch roller sub ASSY Pinch roller holder spring Rib ...

Page 329: ...Confidential 3 196 8 Release the Pin to remove the Pinch roller sub ASSY from the LT paper tray Fig 3 293 LT paper tray Pinch roller sub ASSY Pin Pin Pinch roller sub ASSY ...

Page 330: ...over Rear 1 Remove the four Shoulder screws from the LT cover rear Fig 3 294 2 Release the two Pins on the bottom to remove the LT cover rear Fig 3 295 Shoulder screw Shoulder screws Shoulder screw LT cover rear LT cover rear Pin ...

Page 331: ...ove the three Shoulder screws from the LT cover left Fig 3 296 2 Release the two Hooks on the upper side and the two Hooks on the Back to remove the LT cover left Fig 3 297 Shoulder screw Shoulder screws LT cover left LT cover left Hooks Hooks ...

Page 332: ...three Shoulder screws from the LT cover right Fig 3 298 2 Release the two Hooks on the upper side and the two Hooks on the Back to remove the LT cover right Fig 3 299 LT cover right Shoulder screw Shoulder screw Shoulder screw LT cover right Hooks Hooks ...

Page 333: ...ASSY 1 Disconnect the all connectors from the LT relay PCB ASSY CN1 CN3 CN4 CN6 CN5 CN2 Fig 3 300 2 Remove the cup S M3x6 Taptite screw and then remove the LT relay PCB ASSY Fig 3 301 LT relay PCB ASSY LT relay PCB ASSY Taptite cup S M3x6 ...

Page 334: ...remove the Solenoid holder ASSY Fig 3 302 2 Remove the Screw flanged M3X3 5 and then remove the LT solenoid ASSY and Solenoid spring MP from the LT solenoid holder Fig 3 303 Solenoid holder ASSY Taptite cup S M3x6 Screw flanged M3x3 5 Solenoid spring MP LT solenoid ASSY LT solenoid holder ...

Page 335: ...om the Fittings shaft Fig 3 304 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 3 305 Collar 6 Collar 6 Fittings shaft Taptite cup S M3x6 LT tray guide left rear ASSY Hook ...

Page 336: ...ssette actuator and Cassette actuator spring Fig 3 306 3 Release the two Hooks to remove the Cassette switch ASSY Fig 3 307 Hook Cassette actuator spring LT tray guide left rear ASSY Hooks Cassette actuator LT tray guide left rear ASSY Cassette switch ASSY ...

Page 337: ...over and LT beam F from the LT frame unit Fig 3 308 2 Remove the Retaining ring E4 from the F roller shaft LT and remove the Gear 24 LT and FR bush Fig 3 309 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 Left side ...

Page 338: ... Lift 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 3 311 F roller shaft LT FR bush TR Retaining ring E3 LT frame unit F roller shaft LT 5a 5c 5b Right side Front Lift spring Hook Lift lever A Lift lever A ...

Page 339: ...nd B of the Lift lever B and align the section B with the Lever of the Paper feed holder Fig 3 312 6 Remove the two cup S M3x6 Taptite screws from the LT frame unit Fig 3 313 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 340: ...07 7 Remove the Gear 20A from the Drive unit by releasing the Hook Fig 3 314 8 Remove the Gear 33 from the Drive unit by releasing the Hook Fig 3 315 Drive unit Gear 20A Hook Gear 33 Drive unit Hook Left side Left side ...

Page 341: ...from the Spring hook and remove the Gear 46 55 from the Drive unit by releasing the Hook Fig 3 316 10 Remove the Gear 46 LT from the Drive unit Fig 3 317 Drive unit Gear 46 55 Extension spring LT Spring hook Hook Drive unit Gear 46 LT Left side Left side ...

Page 342: ...ite screw from the LT frame L unit Fig 3 318 12 Turn the LT frame unit upside down 13 Remove the two cup S M3x6 Taptite screws from the LT frame unit Fig 3 319 Taptite cup S M3x6 Taptite bind B M4x10 LT frame L unit Taptite cup S M3x6 LT frame unit Left side Bottom LT paper feed frame unit ...

Page 343: ... the correct way up 15 Remove the two cup S M3x6 Taptite screws from the LT beam R Fig 3 320 16 Remove the cup S M3x6 Taptite screw from the LT frame unit Fig 3 321 Taptite cup S M3x6 LT beam R Taptite cup S M3x6 LT frame unit Back side Left side ...

Page 344: ...Confidential 3 211 17 Remove the LT paper feed frame unit from the LT frame unit by 17a and 17b Fig 3 322 LT paper feed frame unit LT frame unit Front 17a 17b ...

Page 345: ...ware Controller Program Network Program 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 Create a folder on the C drive for example AC FIRMWARE 2 A USB flash memory drive 3 The Firmware Main Firmware LZ1092_A djf or LZ1092_A upd Sub Firmware PCL PS LZ0828_A djf or LZ0828_A upd LZXXXX_ djf or LZXXXX_ upd LZXXXX Firs...

Page 346: ...e to the USB direct interface on the front of the machine Fig 4 1 3 When the machine has recognized the USB flash memory drive the Direct button lights blue Press the Direct button 4 Direct Print is displayed on the first line of the LCD and the file names will be shown on the second or lower line of the LCD Press the or button to choose the necessary program file and press the OK button 5 When Pr...

Page 347: ...elow that enables your PC to identify terminals via one single virtual USB device Note Once this installation procedure is carried out for a PC no more driver software installation will be required for that PC to identify machines If the Brother Maintenance USB Printer driver has been already installed to your PC according to this procedure skip this section Before proceeding to the procedure give...

Page 348: ...ial 4 4 6 The following screen appears indicating the detection of new hardware device by the system Select No not this time And click Next 7 Select Install the software automatically Recommended and click Next ...

Page 349: ...Confidential 4 5 8 Alert warning message of WHQL appears Click Continue Anyway to proceed ...

Page 350: ...en appears Click Finish to return Note In order to check whether the printer driver is successfully installed click Start Settings and Printers and select the Printers window Then check that the Brother Maintenance USB Printer icon is shown 10 Repeat the steps from 7 to 9 three times and then complete its installation ...

Page 351: ...jf LZXXXX First six digits are a parts number of the firmware Alphabet representing the revision of the firmware Rewriting the Sub Firmware PCL PS 1 Press the Menu and Black Start buttons Next press the button four times to make the machine enter the maintenance mode Refer to 1 1 How to Enter the Maintenance Mode in Chapter 5 TIP FAX models equipped with numerical keypads can enter the maintenance...

Page 352: ... the LCD 5 Upon completion of rewriting the machine is rebooted and returns to the Ready state automatically How to rewrite the main firmware again if failing to rewrite it Note If failing to rewrite the main firmware prepare the upd file 1 Turn the power switch of the machine off Then turn it on while pressing the 5 button appears on the LCD 2 Start the FILEDG32 EXE by double clicking the icon to...

Page 353: ...et the CCD Scanner Area Maintenance Mode Code 55 Refer to 1 4 16 Acquisition of White Level Data and CCD Scanner Area Setting in Chapter 5 and perform the acquisition of white level data and CCD scanner area setting EEPROM Customizing of Main PCB Maintenance Mode Code 74 Refer to 1 4 20 EEPROM Customizing in Chapter 5 and perform the EEPROM Customizing For models in France and surrounding countrie...

Page 354: ... the box on the right hand side and click the OK button A confirmation window opens and shows the serial number Check that it is correct and click the OK button Note Refer to Appendix 3 SERIAL NUMBER SYSTEM to know how to read the serial number of the machine Performing the Auto Registration Select Printer Auto Regist and Registration from Menu and perform the auto registration ...

Page 355: ..._ 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 How to rewrite the firmware by using the USB flash memory drive Note Make sure that the USB flash memory drive has enough space to save the program file If you want to print an index of the files choose Index Print The Index Print sel...

Page 356: ...r and press the Black Start button twice so that the firmware version of the engine firmware can be checked If rewriting the firmware using a USB flash memory drive fails turn the power of the machine off and on Follow the steps 1 to 7 again Rewriting the firmware Engine firmware Note DO NOT unplug the power cord of the machine or your PC or disconnect the USB cable while rewriting the program fil...

Page 357: ... Updating will appear on the LCD and the machine emits audible beeps 5 Upon completion of rewriting the machine is rebooted and returns to the Ready state automatically Disconnect the USB cable and complete the procedure Performing the Color Calibration Select Printer Calibration and Calibrate from Menu and perform the color calibration Performing the Auto Registration Select Printer Auto Regist a...

Page 358: ... and Set the CCD Scanner Area Maintenance Mode Code 55 Procedures Acquisition of White Level Data and Set the CCD Scanner Area Maintenance Mode Code 55 Refer to 1 4 16 Acquisition of White Level Data and CCD Scanner Area Setting in Chapter 5 and perform the acquisition of white level data and CCD scanner area setting ...

Page 359: ...nce Mode 66 Procedures Adjustment of Color Registration Maintenance Mode 66 Refer to 1 4 17 Adjustment of Color Registration in Chapter 5 and perform the automatic adjustment of color registration Note If an error occurs after executing Maintenance Mode 66 upgrade the firmware to the latest one Refer to Rewriting the firmware Main firmware Sub firmware PCL PS in this chapter After upgrading the fi...

Page 360: ...wing procedure How to identify old and new laser unit Fig 4 3 Check the colors of the harnesses shown in the figure above Old Red Blue White Blue White New Brown Red Orange Yellow Green Procedures Rewriting the firmware Main firmware Sub firmware PCL PS Engine firmware Refer to Rewriting the firmware Main firmware Sub firmware PCL PS Rewriting the firmware Engine firmware in this chapter and rewri...

Page 361: ...nitial stage of the maintenance mode If an invalid function code is entered the machine beeps for one second and returns to the initial stage of the maintenance mode 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 ...

Page 362: ...a Transfer Function 1 4 14 5 21 54 Fine Adjustment of Scan Start End Positions 1 4 15 5 23 55 Acquisition of White Level Data and CCD Scanner Area Setting 1 4 16 5 25 66 Adjustment of Color Registration 1 4 17 5 26 67 Paper Feeding and Ejecting Test 1 4 18 5 28 72 Sensitivity Adjustment of Density Sensor Don t use 1 4 19 5 28 74 EEPROM Customizing 1 4 20 5 29 75 Sensitivity Adjustment of Registrat...

Page 363: ...tivation code Registered message for cover page comment Forwarding paging number PIN number Outside line number Telephone function registration One touch dialing Speed dialing Group dialing All of these will be initialized These will not be initialized Note If you replace the main PCB with the one used for any other machine carry out this procedure and then customize the EEPROM maintenance mode fu...

Page 364: ...and white data graph Records depending on the number of pixels of the previous scanning Each color of R G and B printed b GAIN AFE parameter G 2Byte c GAIN AFE parameter B 2Byte d GAIN AFE parameter R 2Byte e Background color compensated data 1Byte f AD data for light source control 2Byte g Temperature in acquisition of AD data for light source control 2Byte h Black level data G 2Byte i Black leve...

Page 365: ...Confidential 5 5 Black and white level data for scanning compensation Fig 5 1 ...

Page 366: ...r on the left hand side of the FB unit to the position to lock the scanner unit The SCAN LOCKED will appear on the LCD 3 Press the Stop Exit button The machine beeps for one second and returns to the initial stage of the maintenance mode Note If it is impossible to move the scanner unit in position for transportation or if this function is performed while a scanning error is occurring the SCAN LOC...

Page 367: ... to check the print quality Operating Procedure 1 Press the 0 and 9 buttons in this order in the initial stage of the maintenance mode 2 The machine starts printing a test pattern Upon completion of printing the machine beeps for one second and returns to the initial stage of the maintenance mode The figure below shows a test pattern that is printed Fig 5 2 ...

Page 368: ... setting 1 App 1 12 WSW08 Dial tone setting 2 App 1 13 WSW09 Protocol definition 1 App 1 14 WSW10 Protocol definition 2 App 1 15 WSW11 Busy tone setting App 1 16 WSW12 Signal detection condition setting App 1 17 WSW13 Modem setting App 1 18 WSW14 AUTO ANS facility setting App 1 19 WSW15 REDIAL facility setting App 1 20 WSW16 Function setting 1 App 1 21 WSW17 Function setting 2 App 1 22 WSW18 Funct...

Page 369: ...1 62 WSW60 Not used App 1 63 WSW61 Judgment of scanning light intensity stability 1 App 1 63 WSW62 Judgment of scanning light intensity stability 2 App 1 64 Details of Worker switches The details of the worker switches are described in Appendix 1 in which the user accessible selectors of the worker switches are shaded Operating Procedure 1 Press the 1 and 0 buttons in this order in the initial sta...

Page 370: ...urn to the initial stage of the maintenance mode 2 Printout of Worker Switch Data Function code 11 Function The machine prints out the setting items and contents specified by the worker switches Operating Procedure 1 Press the 1 button twice in the initial stage of the maintenance mode The PRINTING will appear on the LCD 2 The machine prints out the configuration list as shown in the figure below ...

Page 371: ... the maintenance mode The LCD shows 2 Press the Black Start button Each time you press the Black Start button the LCD and Status LED cycle through the displays shown below 3 Press the Stop Exit button in any process of the above display cycle The machine beeps for one second and returns to the initial stage of the maintenance mode LCD Status LED Status Status Status Fig 5 4 Backlight ON Backlight ...

Page 372: ...ecimal 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 Stop Exit button 3 After the last number button is pressed the machine beeps for one second and ret...

Page 373: ... Ver1 00 PictBridge version information B0608071049 5708 Boot program creation date check sum information U0612271600 7B0A Main 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 information as well Press the OK button when its version information is d...

Page 374: ...rder in the initial stage of the maintenance mode The DRUM CLEANING will appear on the LCD 2 Load the drum cleaning sheet into the MP tray 3 Press the Black Start button 4 When the machine ejects the drum cleaning sheet and finishes cleaning the drum unit DRUM CLEANING COMPLETED appears on the LCD 5 Press the Stop Exit button to terminate this operation Then the machine beeps for one second and re...

Page 375: ... installed not installed Paper detected not detected Paper not detected detected Paper tray installed not installed Paper detected not detected Paper not detected detected Plate up detected not detected LT connected not connected MR MP CV 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 detec...

Page 376: ...or FB cover sensor FB unit home position sensor No document detected detected No document detected detected Document detected not detected No document detected detected Document cover closed opened CCD unit home position detected not detected Note The appears on the LCD if the sensor is OFF The appears on the LCD if the parts are not installed or there is no term 2 Change the detecting conditions ...

Page 377: ...ease sensor Belt cleaner release ASSY Toner sensor C NEW Toner sensor M NEW Toner sensor Y NEW Toner sensor K NEW Develop release sensor Internal temperature sensor 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 Belt unit temperature sensor Registration mark sensor 2 Toner...

Page 378: ...rame unit LT edge sensor LT sensor LT tray guide left rear ASSY THM HUM sensor THM HUM sensor holder ASSY Front cover Develop press drive L ASSY LT plate up detection sensor LT PE sensor LT connector ADF unit Document scanner unit Document front sensor ADF document separation sensor Size sensor ADF document SB sensor Document rear sensor FB unit home position sensor FB cover sensor ...

Page 379: ...peed or High Speed PB Speed FULL Fixes the speed to Full Speed regardless of the USB device performance An asterisk appears beside the function to be currently set Operating Procedure 1 Press the 4 and 5 buttons in this order in the initial stage of the maintenance mode The PB USBspeed will appear on the LCD 2 Press the OK button Press the or button to select the function you want to set and press...

Page 380: ...ress the 5 and 2 buttons in this order The Set Country Press OK will appear on the LCD 3 Press the OK button The country name will appear on the LCD Note The country name indicated on the LCD varies depending on the area code input in Function code 74 as shown in the table below France and surrounding countries Oceania Pan Nordic Iberia France Australia Norge España België Belgique New Zealand Sue...

Page 381: ...ber of received files appears just as NO OF JOBS 10 3 To transfer the activity report only press the 2 button The 2 ACTIVITY appears To transfer received files together with the activity report press the 3 button The 3 DOCUMENTS appears Note that if there is no received file the NO DOCUMENTS appears 4 To transfer the communication list for the latest communication press the 4 button The 4 COM LIST...

Page 382: ...Confidential 5 22 Cover page sample Fig 5 12 End page sample Fig 5 13 ...

Page 383: ...1 or 2 button to display the present compensation level for the start position Compensation levels can be adjusted in 11 steps from 5 to 5 mm 4 Press the button to increase compensation levels and the button to lower them Press the Stop Exit button so that the machine beeps for one second and returns to the initial state of the maintenance mode without adjusting compensation levels 5 Set the compe...

Page 384: ...Confidential 5 24 MAINTENANCE ACCEPTED ADF FB SCAN START ADJ Fig 5 15 2 seconds later button button OK button OK button Stop Exit button 5 and 4 buttons select or button select Stop Exit button ...

Page 385: ...eep for one second and return to the initial stage of the maintenance mode Enter the input data value of a 5 digit number based on the 4 digit number to be displayed referring to the table below e g 4723 Æ 47247 3 The machine saves the magnification compensation setting value into the EEPROM and then it beeps for one second and returns to the initial stage of the maintenance mode Maintenance mode ...

Page 386: ...uct the auto adjustment of color registration again NO PAPER 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 field LETTER or A4 is displayed LETTER is displayed on the models of which default size is LETTER an...

Page 387: ...n you enter the numeric value of the pattern 9 Yellow Right SET REGISTRATION COMPLETED is displayed on the LCD When you press the Stop Exit button a buzzer sounds for approx 1 second and the machine returns to the initial stage of the maintenance mode Color registration adjustment chart Fig 5 16 ...

Page 388: ...from Tray 1 SELECT TRAY2 DX Continuous two sided printing from Tray 2 SELECT MP DX Continuous two sided printing from MP Tray 6 The PAPER FEED TEST will appear on the LCD The test printing is started and the grid pattern is printed 7 Press the Stop Exit button so that machine stops printing Then it beeps for one second and returns to the initial stage of the maintenance mode Note In the case that ...

Page 389: ...tage of the maintenance mode If you press the Stop Exit button or no buttons are pressed for one minute in the above procedure the machine stops the procedure beeps for one second and returns to the initial stage of the maintenance mode The modification of the setting data is not saved in this case EEPROM customizing code list Destination DCP 9045CDN MFC 9840CDW Destination DCP 9045CDN MFC 9840CDW...

Page 390: ...as the operation before the color registration 3 REGI_SENS ADJUST BELT CHECK Check whether there is no scratch on the surface of the belt unit within the detectable range of registration mark sensor Operating Procedure 1 Press the 7 and 5 buttons in this order in the initial stage of the maintenance mode REGI SENS ADJUST appears on the LCD 2 Press the or button to select the appropriate term 3 Pre...

Page 391: ...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 392: ...cedure 1 Press the 7 button twice in the initial state of the maintenance mode The MAINTENANCE 77 will appear on the LCD 2 The machine prints out a list of log information Upon completion of printing the machine returns to the initial state of the maintenance mode The example of the log information is shown below Maintenance information Fig 5 17 ...

Page 393: ...intenance mode The indication will appear on the LCD as shown in the figure below Fig 5 18 2 Press the Black Start button so that the LCD indication is changed in the order shown in the figure above The fan operation is also changed as indicated on the LCD 3 Press the Stop Exit button so that the machine stops checking the fans beeps for one second and returns to the initial stage of the maintenan...

Page 394: ...Confidential 5 34 Location of fans Fig 5 20 Fuser unit fan FU Air intake fan AIR LVPS fan PS Drum unit fan OPC Exhaust Intake ...

Page 395: ...ted pages TTL_MO Total number of monochrome printed pages TTL_CI Cyan total number of printed pages TTL_MI Magenta total number of printed pages TTL_YI Yellow total number of printed pages TTL_KI Black total number of printed pages TTLCOPY Number of copies made CL_COPY Number of color copies made MN_COPY Number of monochrome copies made TTLPCPT Number of PC prints made CL_PCPT Number of color PC p...

Page 396: ...he T1 paper feeding kit has been replaced PFK2_CH Number of times the LT paper feeding kit has been replaced PFK2_PG 3 Number of printed pages with the LT paper feeding kit FUSR_CH Number of times the fuser unit has been replaced FUSR_PG 3 Number of printed pages with the fuser unit LASR_CH Number of times the laser unit has been replaced LASR_PG 3 Number of printed pages with the laser unit ADSX_...

Page 397: ...de The machine displays Calibrate Please Wait on the LCD and starts the developing bias voltage correction 2 Upon completion of the developing bias voltage correction the machine beeps for one second and returns 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 corr...

Page 398: ...machine 2 If the line is connected have the user perform the following 1 Hook up to the external phone 2 Press the Menu Black Start Menu buttons in this order 3 Press the 8 and 7 buttons The above operation makes the user s machine send CNG to your machine for sending the transmission log 3 If you hear the CNG sent from the user s machine press the Black Start button of your machine Your machine w...

Page 399: ... the 2 button the machine returns to the Belt unit and you need to press Stop Exit button to go back to the ready state without performing any operation 2 1 2 Resetting the Life Counter of the Fuser Unit Function This function allows you to reset the page counter of the fuser unit and increase the number of replacement times by one Operating Procedure 1 Press the 3 and 9 buttons at the same time i...

Page 400: ...u need to press Stop Exit button to go back to the ready state without performing any operation 2 1 4 Resetting the Life counter of the Paper Feeding Kit Function This function allows you to reset the page counter of the paper feeding kit and increase the number of replacement times by one Operating Procedure 1 Press the 3 and 9 buttons at the same time in the ready state The Reset Menu will appea...

Page 401: ... machine returns to the PF kit MP and you need to press Stop Exit button to go back to the ready state without performing any operation 2 1 6 Resetting the Life Counter of the Laser Unit Function This function allows you to reset the page counter of the laser unit and increase the number of replacement times by one Operating Procedure 1 Press the 3 and 9 buttons at the same time in the ready state...

Page 402: ...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 cartridge C TNR H Reset the develop roller counter of h...

Page 403: ...4 Fuser Motor Speed Adjustment Mode Function The problem such as dirt on the paper bottom or the unexpected print image due to a paper crease may be occurred when printing the thin paper This mode allows you to change the speed of the fuser motor Paper feed belt cleaner motor ASSY according to the respective problems Operating Procedure 1 Press the 2 and 8 buttons at the same time while the front ...

Page 404: ...Confidential 6 1 CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM Charge High voltage Power Supply PCB Circuit Diagram 1 4 ...

Page 405: ...Confidential 6 2 Charge High voltage Power Supply PCB Circuit Diagram 2 4 ...

Page 406: ...Confidential 6 3 Charge High voltage Power Supply PCB Circuit Diagram 3 4 ...

Page 407: ...Confidential 6 4 Charge High voltage Power Supply PCB Circuit Diagram 4 4 ...

Page 408: ...Confidential 6 5 Transfer High voltage Power Supply PCB Circuit Diagram 1 2 ...

Page 409: ...Confidential 6 6 Transfer High voltage Power Supply PCB Circuit Diagram 2 2 ...

Page 410: ...Confidential 6 7 Low voltage Power Supply PCB Circuit Diagram 100V ...

Page 411: ...Confidential 6 8 Low voltage Power Supply PCB Circuit Diagram 200V ...

Page 412: ...A15 04 D4 RA 351M V6 2 D2 S1ZB60 A1 A2 R1 120 2W R2 24k FG 6B CI GND 24V R5 6 2k C1 C474 250V PH3 TLP421 A K E C T1 BT 17 GND R4 6 2k 6B SL R11 4 3k 5A SL GND 2C TELRL 2A CML 2B PLS 5B RL1 24V 3D TELSL 2C TELOFF 4B CI 5V J3 285D D440J 111 1 XX 2 XX 3 XX 4 XX 5 GND 6 GND 5V Q1 C5395 C B E 6B TELOFF 6B CML GND 6B TELRL R20 100 C13 C10 16V GND 5V GND FG 6C PLS J2 R41 4910 A 3 XX 4 XX 7 FG 8 FG J1 R41...

Page 413: ...Confidential 6 10 Filter PCB Circuit Diagram ...

Page 414: ...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 415: ...G 1 VBUS 5V DP OCI Overcurrent CN2 5 HS_D High side SW FS_D 6 FG GND GND HS_D FG PPON 6 5V 6 8V REG BM06B SRSS TB B06B CZHK B 1 CN BM06B SRSS TB Real time clock REG B3 3V Voltage Detector ELECTRIC DOUBLE LAYER CAPACITOR Function 15 E2P_SDA E2P_SCL GPIO 3 3V GND 6 8V CN5 3 3V 3 3V 3 3V PUBAR1 04FTBSCNN2N0 5V CN16 2 B2B PH K S LF SN 1 GND FB COVER VSYNC_n CMDREQ_n CMDRDY_n B10B CZHK B 1 6 8V 24V PGN...

Page 416: ...on Refer to WSW01 Dial pulse setting App 1 3 WSW02 Tone signal setting App 1 5 WSW03 PABX mode setting App 1 6 WSW04 Transfer facility setting App 1 8 WSW05 1st dial tone and busy tone detection App 1 9 WSW06 Redial Pause button setting and 2nd dial tone detection App 1 10 WSW07 Dial tone setting 1 App 1 12 WSW08 Dial tone setting 2 App 1 13 WSW09 Protocol definition 1 App 1 14 WSW10 Protocol defi...

Page 417: ...mail settings App 1 48 WSW43 Function setting 21 App 1 48 WSW44 Speeding up scanning 1 App 1 49 WSW45 Speeding up scanning 2 App 1 50 WSW46 Monitor of power ON OFF state and parallel port kept at high App 1 51 WSW47 Switching between high and full speed USB App 1 52 WSW48 USB setup latency App 1 53 WSW49 End of copying beep and print in black App 1 54 WSW50 SDAA settings App 1 55 WSW51 Function se...

Page 418: ...0 ms at 106 ms intervals 7 Switching between pulse and tone dialing by the function switch 0 Yes 1 No 8 Default dialing mode pulse DP or tone PB dialing 0 PB 1 DP Selectors 1 and 2 Dial pulse generation mode These selectors set the number of pulses to be generated in pulse dialing N Dialing N generates N pulses Dialing 0 generates 10 pulses N 1 Dialing N generates N 1 pulses 10 N Dialing N generat...

Page 419: ...elector determines whether or not the dialing mode can be switched between the pulse DP and tone PB dialing by using the function switch Selector 8 Default dialing mode pulse DP or tone PB dialing This selector sets the default dialing mode pulse dialing or tone dialing which can be changed by the function switch If the user switches it with the function switch when selector 7 is set to 0 the sett...

Page 420: ...4 dB 1 2 dB 1 1 dB Selectors 1 through 4 Tone signal transmission time length and Min pause in tone dialing These selectors set the tone signal transmission time length and minimum pause in tone dialing Example If 1 2 3 4 and 5 are dialed Selectors 5 through 8 Attenuator for pseudo ring backtone to the line These selectors are used to adjust the sound volume of a ring backtone in the F T mode an o...

Page 421: ...5 sec wait 1 0 No detection 7 sec wait 1 1 Detection Frequency only 8 Not used PABX Private automatic branch exchange Note Selectors 2 through 4 6 and 7 are not applicable where no PABX is installed Selectors 1 and 5 CNG detection when sharing a modular wall socket with a telephone These selectors determine whether or not the machine detects a CNG signal when a line is connected to a telephone sha...

Page 422: ...ne detection in PABX These selectors activate or deactivate the dial tone detection function which detects a dial tone when a line is connected to the PABX Setting both of these selectors to 1 activates the dial tone detection function so that the machine starts dialing upon detection of a dial tone when a line is connected Other setting combinations deactivate the dial tone detection function so ...

Page 423: ...sfer facility is supported Selectors 2 through 4 are applicable to models equipped with built in TADs Selector 1 Earth function in transfer facility Not used This selector determines whether or not the earth function is added to the transfer setting menu to be accessed by the function switch Selectors 2 and 3 Dual tone detection frequency in ICM recording If the machine detects either of the frequ...

Page 424: ...N Setting all of these selectors to 1 activates the dial tone detection function so that the machine starts dialing upon detection of a dial tone when a line is connected However in those countries which support no dial tone detection function e g in the U S A setting these selectors to 1 makes the machine start dialing after a WAIT of 3 5 seconds For the detecting conditions of the 1st dial tone ...

Page 425: ...nnects the line upon detection of a busy tone in automatic receiving mode WSW06 Selector No Function Setting and Specifications 1 3 Redial Pause button setting and 2nd dial tone detection No 1 2 3 0 0 0 No pause 0 0 1 3 5 sec wait 0 1 0 7 sec wait 0 1 1 10 5 sec wait 1 0 0 2 8 sec wait 1 0 1 2nd dial tone detection both in DP and push button PB dialing system 1 1 0 2nd dial tone detection only in ...

Page 426: ... will insert a WAIT of 3 5 seconds When these selectors are set to 1 1 1 If you press the Redial Pause button the machine will first wait for the 2nd dial tone to be sent via the communications line regardless of pulse dialing or tone dialing After that pressing the Redial Pause button will cause the machine to insert a wait of 3 5 seconds In those countries where no dial tone detection function i...

Page 427: ...ection is supported e g U S A Selector 3 is not applicable to those models having no loop current detection function Selectors 1 and 2 Dial tone frequency band control These selectors set the frequency band for the 1st dial tone and busy tone before dialing to be detected This setting is effective only when selectors 1 through 3 on WSW05 are set to 1 1 1 Selector 3 Line current detection Not used ...

Page 428: ...1 0 1 36 dBm 1 1 0 39 dBm 1 1 1 42 dBm Note The WSW08 is not applicable in those countries where no dial tone detection is supported e g U S A Selectors 1 through 3 1st dial tone detection time length Upon detection of the 1st dial tone for the time length set by these selectors the machine starts dialing This setting is effective only when selectors 1 through 3 on WSW05 are set to 1 1 1 Selectors...

Page 429: ...r correction mode ECM is a facsimile transmission manner in which the machine divides a message into frames for transmission so that if any data error occurs on the transmission line the machine retransmits only those frames containing the error data Selector 2 Use of non standard commands If this selector is set to 0 the machine can use non standard commands the machine s native mode commands e g...

Page 430: ...e last dial digit to CML ON This selector sets the time length from when the machine transmits the last dial digit until the CML relay comes on Selector 3 Time length from CML ON to CNG transmission This selector sets the time length until the machine transmits a CNG after it turns on the CML relay Selector 4 Time length from CML ON to CED transmission This selector sets the time length until the ...

Page 431: ...is not applicable in those countries where no busy tone detection is supported The setting of WSW11 is effective only when selectors 5 and 6 on WSW05 are set to 0 1 or 1 1 Busy tone detection Selectors 1 and 2 Busy tone frequency band control These selectors set the frequency band for busy tone to be detected Selectors 3 through 8 ON OFF time length ranges for busy tone These selectors set the ON ...

Page 432: ...r incoming calling signal CI being OFF If the machine detects the OFF state of a CI signal for the period greater than the value set by selectors 1 and 2 and less than the value set by selectors 3 and 4 it interprets the CI signal as OFF Selectors 5 and 6 Min detection period required for acknowledging incoming calling signal CI as ON These selectors set the period required to make the machine ack...

Page 433: ... selectors according to the distance from the telephone switchboard to the machine Selectors 3 and 4 Reception level These selectors set the optimum receive signal level Selectors 5 through 8 Modem attenuator These selectors are used to adjust the transmitting level attenuation of the modem when the reception level at the remote station is improper due to line loss This function applies for G3 pro...

Page 434: ...mes 1 0 0 1 2 to 4 times 1 0 1 0 2 to 5 times 1 0 1 1 2 to 6 times 1 1 0 0 1 to 10 times 1 1 0 1 2 to 10 times 1 1 1 0 3 to 5 times 1 1 1 1 4 to 10 times Selectors 1 through 4 Frequency band selection for incoming calling signal CI These selectors are used to select the frequency band of CI for activating the AUTO ANS facility In the French models if the user sets the PBX to OFF from the control p...

Page 435: ...e 1 Enable Selectors 1 through 6 Redial interval and No of redialings The machine redials by the number of times set by selectors 3 through 6 at intervals set by selectors 1 and 2 Selector 8 CRP option If a command error occurs in the machine calling station the machine usually waits for three seconds and then makes a retry three times This CRP option is a request command that can be sent from the...

Page 436: ... ADF units Selector 2 ITU T CCITT superfine recommendation If this selector is set to 1 the machine communicates in ITU T CCITT recommended superfine mode 15 4 lines mm If it is set to 0 it communicates in native superfine mode Selector 7 Max document length limitation This selector is used to select the maximum length of a document to be sent Selector 8 Stop Exit button pressed during reception I...

Page 437: ...2 Off hook alarm These selectors activate or deactivate the alarm function which sounds an alarm when the communication is completed with the handset being off the hook Selector 5 Calendar clock type If this selector is set to 0 USA the MM DD YY hh mm format applies if it is set to 1 Europe the DD MM YY hh mm format applies DD is the day MM is the month YY is the last two digits of the year hh is ...

Page 438: ...alled stations Selectors 2 and 3 Detection enabled time for CNG and no tone After the line is connected via the external telephone or by picking up the handset of the machine the machine can detect a CNG signal or no tone for the time length specified by these selectors The setting specified by these selectors becomes effective only when selector 8 on WSW20 is set to 1 Selector 6 Registration of s...

Page 439: ...rough 3 the machine attempts to establish the transmission link via the MODEM If the establishment fails the machine automatically steps down to the next lowest speed and attempts to establish the transmission link again The machine repeats this sequence while stepping down the transmission speed to the last choice specified by selectors 4 through 6 If the MODEM always falls back to a low transmis...

Page 440: ...r takes effect only when the Overseas Mode is set to ON Selectors 2 and 3 Overseas communications mode These selectors should be used if the machine malfunctions in overseas communications According to the communications error state select the signal specifications Setting selector 2 to 1 allows the machine to use 1100 Hz CED signal instead of 2100 Hz in receiving operation This prevents malfuncti...

Page 441: ...e of message stored in the memory after the message transfer 0 Yes 1 No Note Selectors 1 through 5 are applicable to models equipped with ICM recorders Selectors 6 through 8 are applicable to models equipped with TADs Selectors 1 through 5 Max waiting time for voice signal In the TAD mode the machine waits for voice signal for the time length specified by these selectors before it automatically sh...

Page 442: ...gh 8 are applicable to the Chinese Taiwanese and Asian models only Selector 3 Call Waiting Caller ID Setting this selector to 0 allows the user to decide whether or not to interrupt the current call when a new call comes in If Call Waiting Caller ID service is available in the area and the user subscribes to it he she can see information about his her incoming call on the LCD Selectors 5 through 8...

Page 443: ...detected If it is set to 1 the called station starts counting zeros upon detection of 10 ms successive zeros 50 ms after the head of a series of zeros is detected In this case if the detection of 10 ms successive zeros is too late the data counting period will become less than 1 0 second making the called station judge the line condition unacceptable Selectors 2 and 3 Allowable training error rate...

Page 444: ... time These selectors set the allowable maximum recording time for an OGM Selectors 3 and 4 Time length from CML ON to start of pseudo ring backtone transmission These selectors set the length of time from CML ON up to the start of pseudo ring backtone transmission In models with OGM facilities the settings made by these selectors also apply to the length of time from CML ON up to the start of OGM...

Page 445: ...or for models equipped with the Rockwell modem V24 Selectors 5 through 7 are applicable to the U S A models only Selectors 1 and 2 External TAD no tone detection start delay time Valid only for the external TAD mode This machine will delay the start of detection for no tone by the length of time set by selectors 1 and 2 The sum of the detection delay time setting and the waiting time for no tone d...

Page 446: ...d then starts dialing This enables the machine to list the total number of pages in the header of the facsimile message Selectors 4 and 5 No of CNG cycles to be detected when the line is connected via the external telephone except in the external TAD mode or via the built in telephone The machine interprets a CNG as an effective signal if it detects the CNG by the number of cycles specified by the...

Page 447: ...e ringing pattern If this selector is set to 1 the machine detects only the number of rings if it is set to 0 the machine detects the number of rings and the ringing time length to compare the detected ringing pattern with the registered distinctive one Selector 6 Recording quality This selector determines the recording quality for the OGM and ICM Selecting 1 High increases the quality sacrificing...

Page 448: ...0 0 dB 1 0 1 1 dB 1 1 0 2 dB 1 1 1 3 dB 4 6 Transmission level of DTMF low band frequency signal No 4 5 6 0 0 0 0 dB 0 0 1 1 dB 0 1 0 2 dB 0 1 1 3 dB 1 0 0 0 dB 1 0 1 1 dB 1 1 0 2 dB 1 1 1 3 dB 7 8 Not used Selectors 1 through 6 Transmission level of DTMF high low band frequency signal These selectors are intended for the manufacturer who tests the machine for the Standard Never access them ...

Page 449: ...in pulse dialing 0 OFF 1 ON 8 Prompt beep when the memory area for the activity report becomes full 0 No 1 Yes Note Selectors 1 through 6 are applicable to models equipped with built in TADs Selectors 7 and 8 are applicable only to the European versions Selectors 1 through 6 Compression threshold level for voice signals inputted via the telephone line in the built in TAD operation If voice signals...

Page 450: ...nction 0 Enable 1 Disable 8 Not used Note Selectors 1 through 3 are applicable to models equipped with internal TADs Selectors 1 through 3 Dial tone busy tone detection level during recording of ICM Not used If the machine called station detects dial tone 400 Hz continuously or busy tone 400 Hz intermittently exceeding the detection level specified by these selectors for the period specified by se...

Page 451: ...e data at full size 100 without reduction if it is set to 1 the machine records it at 70 size Selector 5 Minimum ON and OFF duration of ringer signals effective in distinctive ringing The ringer pattern consists of short and long rings e g short short long rings This selector sets the minimum ON and OFF duration of ringer signals that are required for the machine to interpret ringer signals as bei...

Page 452: ...ult contrast No 7 8 0 0 Automatic 0 1 Automatic 1 0 Super light 1 1 Super dark Selectors 5 and 6 Default resolution These selectors set the default resolution which applies when the machine is turned on or completes a transaction Selectors 7 and 8 Default contrast These selectors set the default contrast which applies when the machine is turned on or completes a transaction ...

Page 453: ...g of ICM If the tone level during recording of ICM is less than the threshold setting made by these selectors the tone is interpreted as no tone When the no tone state is kept for the period specified by selectors 1 through 5 on WSW21 the machine disconnects the line Selectors 4 and 5 FAX receiving speed to be kept within the transmission speed limit to the PC Not used To transmit FAX data being r...

Page 454: ...e tone detection starting point in the case of automatic line disconnection due to no voice signal received If the machine has disconnected the line after detection of disconnection tone in ICM recording it erases tone recorded preceding the tone detection starting point for the time length set by these selectors Selectors 4 and 5 No of CNG cycles to be detected when the line is connected via the ...

Page 455: ...s 1 through 3 on WSW30 for the period specified by these selectors then it disconnects the line WSW36 Selector No Function Setting and Specifications 1 ECP mode Not used 0 ON 1 OFF 2 Recovery from Inactive PC Interface Not used 0 Disable 1 Enable 3 PC Power off Recognition Time Not used 0 Normal 1 Long 4 Not used 5 Escape from phase C 0 Yes 1 No 6 8 Extension of incoming calling signal CI frequenc...

Page 456: ...ed that selector 3 be set to 1 otherwise the machine may mistakenly detect PC powered off Selector 5 Escape from phase C This selector determines whether or not the machine will escape from phase C when it detects an RTC Return to Control in non ECM mode or an RCP Return to Control Partial page in ECM mode Selectors 6 through 8 Extension of incoming calling signal CI frequency band specified by se...

Page 457: ... not to print out the 1st page image data of a document onto the error report if the document image data stored in the temporary memory cannot be transmitted normally Selector 2 Erasure of the stored image data of an unsent document at the time of the subsequent in memory message transmission If in memory message transmission fails repeatedly when selector 1 is set to 1 the temporary memory will b...

Page 458: ... 2 Setting of the equalizer These selectors set the equalizer s training level to be applied if the machine fails to send training due to weak line connection If these selectors are set to 0 X the modem will automatically set the appropriate training level Selector 3 Sending level of guard tone at phase 2 This selector sets the sending level of guard tone for 1800 Hz to be sent at Phase 2 in the V...

Page 459: ...the transmission speed setting in other modes refer to WSW19 Selectors 1 through 8 First and last choices of transmission speed for fallback These selectors are used to set the modem speed range With the first transmission speed choice specified by selectors 1 through 4 the machine attempts to establish the transmission link via the modem If the establishment fails the machine automatically steps ...

Page 460: ...n the next page The setting made by these selectors will limit the setting made by selectors 1 through 4 on WSW39 If selector 3 is set to 1 to mask the 3429 symbols second when the first transmission speed choice is 33600 bps specified by selectors 1 through 4 of WSW39 for example then the allowable maximum transmission speed will be limited to 31200 bps If selector 8 is set to 1 to mask the 2400 ...

Page 461: ...12 000 14 400 16 800 19 200 21 600 3000 4 800 7 200 9 600 12 000 14 400 16 800 19 200 21 600 24 000 26 400 28 800 2800 4 800 7 200 9 600 12 000 14 400 16 800 19 200 21 600 24 000 24 600 3200 4 800 7 200 9 600 12 000 14 400 16 800 19 200 21 600 24 000 26 400 28 800 31 200 3429 4 800 7 200 9 600 12 000 14 400 16 800 19 200 21 600 24 000 28 800 31 200 33 600 ...

Page 462: ...Bm Selectors 1 through 3 ON duration of the scanning light source at room temperature If the scanning operation is started when the scanning light source is off then it will come on for scanning These selectors determine how long the light source is ON after scanning If these selectors are set to 1 1 1 the light source goes off immediately after the scanning sequence Selectors 5 through 8 Modem at...

Page 463: ...Selector No Function Setting and Specifications 1 Not used 2 3 Wait time for PC Fax reception Class 2 and FPTS command transmission Not used No 2 3 0 0 50 ms 0 1 100 ms 1 0 150 ms 1 1 0 ms 4 5 Detection time of 2100 Hz CED or ANSam Not used No 4 5 0 0 200 ms 0 1 300 ms 1 0 400 ms 1 1 500 ms 6 Not used 7 Automatic start of remote maintenance Not used 0 No 1 Yes 8 JPEG coding 0 Disable 1 Enable Sele...

Page 464: ...btained beforehand No 6 7 8 0 0 0 Obtained compensation data ineffective 0 0 1 1 min 0 1 0 3 min 0 1 1 5 min 1 0 0 10 min 1 0 1 15 min 1 1 0 20 min 1 1 1 30 min Note Selectors 6 through 8 are applicable to flat head type models only Selectors 6 through 8 Effective time length of the white level compensation data obtained beforehand These selectors determine how long compensation data obtained befo...

Page 465: ...tors 1 through 3 Delay time from when documents are set until the ADF starts drawing them in These selectors determine how long the ADF will delay automatic drawing in of documents to the scanning standby position after you set them in the ADF as well as determining whether or not the ADF automatically draws in documents Selectors 4 through 6 Periodical correction intervals of the reference voltag...

Page 466: ... 4 Previous filtering parameters for white level compensation 0 Enable 1 Disable 5 8 Not used Note Selector 4 is not applicable to models equipped with flat bed scanners Selectors 1 and 2 Monitoring the PC ON OFF state Not used For the related functions refer to WSW36 selectors 2 and 3 Selector 3 Parallel port output pins kept at high level Not used Setting this selector to 0 will keep all paralle...

Page 467: ...els supporting pseudo ringing of a connected external telephone Selector 1 Handling paper at the occurrence of a paper feed timing error Not used When feeding paper to the print start position the machine might cause a feed timing error so that the registration sensor goes ON signaling the presence of paper This selector determines whether the machine prints on the current paper or ejects the curr...

Page 468: ...0 PCs 0 1 0 75 PCs 0 1 1 100 PCs 1 0 0 125 PCs 1 0 1 150 PCs 1 1 0 175 PCs 1 1 1 200 PCs 6 8 USB setup latency Not used No 6 7 8 0 0 0 Default period default period without change 0 0 1 Shorten 1 0 1 0 Lengthen 1 0 1 1 Lengthen 2 1 0 0 Lengthen 3 1 0 1 Lengthen 4 1 1 0 Shorten 2 1 1 1 Shorten 3 Selectors 6 through 8 USB setup latency Not used These selectors should not be disturbed ...

Page 469: ...ted 0 1 80 1 0 120 1 1 150 8 Print in black Not used 0 No Default 1 Yes Selectors 4 and 5 Command flag detection time After receiving a command flag the machine will wait for the command that should follow for the time length specified by these selectors Selectors 8 Print in black Not used If any of the color inks have been deleted out of ink no printing can occur by default If this selector is se...

Page 470: ...V 1 0 25 V 1 1 31 V Note WSW50 is applicable to models equipped with SDAA circuits Selectors 5 and 6 Current control to be applied immediately after connection of the line FAX models equipped with an SDAA circuit on which an NTU chip is mounted might not be connected to a broad band line such as an ADSL Asynchronous Digital Subscriber Line in a stable condition If those models fail to connect to s...

Page 471: ... variation reduction control Not used Printing quality may be lowered due to changes in the head carriage travel speed resulting from variations in the torque of the CR motor during operation If selector 2 is set to 0 the CR motor drive current will be controlled so as to inhibit variations in torque resulting in a smooth CR motor rotation Selectors 5 through 7 Microphone level and echo cancellati...

Page 472: ...r display display after the machine has returned to TEL mode from FAX mode Not used 0 Yes 1 No 8 Dial display during transmission Not used 0 Yes 1 No Selectors 4 through 6 External telephone pseudo ringing signal frequency setting External telephone ringing sound can be changed Selector 7 Caller ID number display display continued after the machine has returned to TEL mode from FAX mode Not used I...

Page 473: ...ia capture Selectors 3 through 6 Caller ID number display FSK receiving timing delay setting and instantaneous interrupt detection time setting If a call error occurs during use of caller ID number display it may be possible for the error to be corrected by adjustment these selectors If the error cannot be thus corrected try adjusting selectors 5 and 6 Selector 8 Decompression of JPEG compressed f...

Page 474: ...e PictBridge command delay time that applies when the machine responds to the digital camera connected via PictBridge during negotiation If the machine fails to receive data from the digital camera change the delay time Selector 3 More CNG detection cycles in user friendly reception If CNG detection fails even after adjustment of selectors 4 and 5 on WSW26 try adding 2 more cycles to the permitted...

Page 475: ...voltage correction is performed on each print job 0 0 0 1 1 0 0 0 The developing bias voltage correction is performed when a print job occurs after 24 hours default value or later 0 0 0 1 0 0 1 0 The developing bias voltage correction is performed when a print job occurs after 72 hours or later 1 1 1 1 1 1 1 1 The developing bias voltage correction is not performed Selector 1 to 8 Interval of time...

Page 476: ...dgment voltage However do make sure that the voltage value set by selectors 1 through 3 of this switch is equal to or greater than the value set by selectors 4 through 6 of the same switch Selectors 4 through 6 Caller ID judgment voltage to be distinguished from reverse polarity voltages Not used If caller IDs cannot be displayed because reverse polarities cannot be detected due to a large differe...

Page 477: ... even during ICM recording To avoid this problem change the setting for the ratio of guard tone response time to the call end tone ON detection time If the actual percentage of guard tone response time is greater than the percentage set by selectors 1 through 3 this machine will judge that the call end tone has not yet been detected and will continue ICM recording WSW59 Selector No Function Settin...

Page 478: ...ate of the CCD scanning light intensity to judge to be stable The light intensity of the CCD unit is changed widely immediately after the light source is on that influences scanning density Therefore the first scanning after the light source is off and on is started after the change rate of the CCD light intensity is stabilized in the definite range These selectors set the change rate to start the...

Page 479: ... 0 Judges according to the change rate 0 1 Not judges 1 0 Judges every page Selectors 1 through 4 Change rate of the CCD light intensity for scanning pages compensation The light intensity of the CCD unit may be changed decreased especially and difference of density may appear among the scanning pages if continuous copying or scanning is implemented from the ADF for a long time To prevent the abov...

Page 480: ...ge again Selectors 5 and 6 7 and 8 Selection of judging function for scanning pages compensation These selectors set the condition to control scanning pages compensation Some operation losses occur in the control of the compensation If you want to start scanning immediately even if the image quality is not good set to 01 Not discriminates If you want to give priority to the image quality even thou...

Page 481: ... models equipped with a numerical keypad can enter the maintenance mode in the same way as conventional models that is by pressing the Menu 2 8 6 and 4 buttons in this order 2 Press the 0 and 1 buttons in this order in the initial stage of the maintenance mode Parameter initialization starts and the PARAMETER INIT appears on the LCD 3 Upon completion of parameter initialization the machine beeps f...

Page 482: ... return the LAN settings to the factory setting values Operating Procedure 1 Press the Menu button Next press the or button to select LAN Press the OK button 2 Press the or button to select Factory Reset Press the OK button 3 Press the 1 button select Reset 4 Press the 1 button select Yes ...

Page 483: ...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 484: ...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 485: ...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 486: ...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 487: ...3x10 Taptite cup B M3x12 Taptite cup B M4x10 Taptite cup B M4x12 Taptite cup B M4x14 Screw bind M3x5 Screw bind M3x8 Taptite pan B M4X14 Shoulder screw Shoulder screw Taptite cup B M3x8 Screw cup M3x6 Taptite cup S M4x8 Taptite cup S M3x8 Taptite cup S M3x6 Taptite cup S M3x8 SR Taptite bind B Taptite bind S Taptite cup B Screw bind Shoulder screw Taptite cup S Taptite pan Screw cup Taptite cup S ...

Page 488: ...ew pan S P washer M3x6 Screw flanged M3x3 5 Screw pan S P washer M4x8 Screw pan S P washer M3 5x6 Taptite B M3x6 Taptite pan B M3x8 Screw flanged Screw pan S P washer Taptite pan B Taptite B Taptite flat B M3x10 Taptite flat B ...

Page 489: ...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 490: ... 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 491: ...s Refer 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 Pape...

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Brother DCP-9045CDN, Service Manual

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