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Canon MF8100 Series Service Manual Download Page 63

Chapter 2

2-27

F-2-41

2.3.7 Secondary Transfer Mechanism

2.3.7.1 Outline

0008-1716

The transfer unit has a function of secondarily transferring the toner transferred primarily on the ITB onto paper.

The unit is structured with the secondary transfer roller and engaging lever, which are operated by the main motor drive.

The secondary transfer roller rotates by the motor drive. The engaging lever performs an engaging operation between the secondary transfer roller and ITB in roller

engaging control.

Stirrer

Light

 emitter

Light

receiver

Waste toner

transport plate

DCNT Board

Light

receiver

Light

emitter

W

ASTET

ONER FULL DETECTIONsignal 

 (W

AST

ONS)

LED DRIVE signal

(P3.3V)

Waste toner

detection circuit

<Low waste toner level>

<High waste toner level>

Light guide

Summary of Contents for MF8100 Series

Page 1: ...Jan 20 2006 Service Manual MF8100 Series LaserBase MF8180C...

Page 2: ......

Page 3: ...need arises In the event of major changes in the contents of this manual over a long or short period Canon will issue a new edition of this manual The following paragraph does not apply to any countri...

Page 4: ...uiring care to avoid combustion fire Indicates an item prohibiting disassembly to avoid electric shocks or problems Indicates an item requiring disconnection of the power plug from the electric outlet...

Page 5: ...ed to indicate Low The voltage value how ever differs from circuit to circuit In addition the asterisk as in DRMD indicates that the DRMD signal goes on when 0 In practically all cases the internal me...

Page 6: ......

Page 7: ...ajor Components 2 1 2 1 2 Basic Sequence 2 2 2 1 2 1 Basic Sequence of Operation at Power on 2 2 2 1 2 2 Basic Sequence of Operation in Response to a Press on the Start Key book 2 3 2 2 Laser Exposure...

Page 8: ...2 3 6 2 Cleaning Roller Engaging Control 2 22 2 3 6 3 Memory Tag 2 23 2 3 6 4 Detecting the ITB Home Position 2 24 2 3 6 5 Drum Cartridge Presence Detection 2 25 2 3 6 6 Checking the Life of the Drum...

Page 9: ...er 3 4 3 2 1 6 Removing the Front Cover 3 4 3 2 2 Rear Cover 3 4 3 2 2 1 Removing the Rear Cover 3 4 3 2 3 Top Cover 3 5 3 2 3 1 Removing the Cassettes 3 5 3 2 3 2 Removing the Rear Cover 3 5 3 2 3 3...

Page 10: ...g the Power Supply Assembly 3 23 3 2 12 6 Removing the Face Down Cover 3 23 3 2 12 7 Removing the Top Cover 3 23 3 2 12 8 Removing the Right Frame 3 24 3 2 12 9 Removing the Shield Plate 3 24 3 2 12 1...

Page 11: ...the Power Supply Assembly 3 40 3 2 18 7 Removing the Face Down Cover 3 41 3 2 18 8 Removing the Top Cover 3 41 3 2 18 9 Removing the Right Frame 3 42 3 2 18 10 Removing the Left Frame 3 42 3 2 18 11...

Page 12: ...Unit 3 58 3 3 5 4 Removing the ADF Unit 3 58 3 3 5 5 Points to Note When Mounting the ADF Unit 3 59 3 3 5 6 Removing the Document Pickup Roller Unit 3 59 3 3 5 7 Removing the Separation guide unit 3...

Page 13: ...ng the Power Supply Assembly 3 78 3 5 1 6 Removing the Face Down Cover 3 78 3 5 1 7 Removing the Top Cover 3 78 3 5 1 8 Removing the Right Frame 3 79 3 5 1 9 Removing the Shield Plate 3 79 3 5 1 10 Re...

Page 14: ...8 3 5 6 3 Removing the Right Cover 3 99 3 5 6 4 Removing the Left Cover 3 99 3 5 6 5 Removing the Power Supply Assembly 3 99 3 5 6 6 Removing the Face Down Cover 3 99 3 5 6 7 Removing the Top Cover 3...

Page 15: ...the Fan Duct 3 119 3 5 11 14 Removing the Laser Scanner Unit Base 3 119 3 5 11 15 Removing the Developing Rotary Assembly 3 119 3 5 11 16 Removing the Developing Rotary Toner Level Detection PCB 3 120...

Page 16: ...1 Removing the Cassette 3 137 3 6 5 2 Removing the Front of the Cassette 3 137 3 6 5 3 Removing the Cassette Separation Pad 3 138 3 6 6 Manual Pickup Roller 3 138 3 6 6 1 Removing the Manual Pickup Ro...

Page 17: ...embly 3 155 3 7 2 Fixing Film Unit 3 155 3 7 2 1 Removing the Fixing Assembly 3 155 3 7 2 2 Removing the Face Up Cover 3 155 3 7 2 3 Removing the Fixing Film Unit 3 156 3 7 3 Fixing Pressure Roller 3...

Page 18: ...Replacement Parts 4 2 4 3 Consumables 4 2 4 3 1 Expected Service Life of Consumable Parts 4 2 4 4 Periodical Service 4 3 4 4 1 Periodic Service 4 3 Chapter 5 TROUBLESHOOTING 5 1 Measurement and Adjust...

Page 19: ...5 5 4 5 Faculty Test 5 11 Chapter 6 APPENDIX 6 1 Outline of Electrical Components 6 1 6 1 1 Cluth Solenoid 6 1 6 1 1 1 Cluth Solenid 6 1 6 1 2 Motor Fan 6 1 6 1 2 1 Motor Fan 6 1 6 1 3 Sensor 6 2 6 1...

Page 20: ...Contents...

Page 21: ...Chapter 1 PRODUCT DESCRIPTION...

Page 22: ......

Page 23: ...1 2 4 Major Component 1 5 1 3 Safety 1 5 1 3 1 Safety of the Laser Light 1 5 1 3 2 Safety of Toner 1 5 1 3 3 Safety and Ozone 1 5 1 3 4 Points to Note When Replacing Disposing of the Lithium Battery 1...

Page 24: ......

Page 25: ...Right edge 6 to 1 mm Left edge 3 2 mm Trailing edge 12 to 1 mm Reading resolution ADF 600x600 dpi copyboard glass 1200x2400 dpi Copying resolution ADF 600 x 600 dpi copyboard glass 600 x 600 dpi Print...

Page 26: ...no Subaddress transmission no Confidential transmission no Relay broadcast originating transmission no Relay broadcast transmission no Polling transmission no Dual access Number of jobs reserved for...

Page 27: ...Document Feeder 8 Cassette 3 Document feeder tray 9 Platen glass cover 4 Document guides 10 Platen glass 5 Output tray 11 Multi purpose tray 6 Cartridge cover 12 USB port 15 Telephone line jack 13 Pow...

Page 28: ...dge 18 Developing rotary 6 ITB 19 Toner cartridge 7 Density sensor 20 Fixing film unit 8 Primary transfer roller 21 Pressure roller 9 ITB cleaning roller 22 Fixing delivery roller 10 Registration shut...

Page 29: ...material They are likely to react with each other 1 3 3 Safety and Ozone 0007 4970 The cleaning charge roller used in the machine generates ozone gas O3 at time of corona discharge only when the mach...

Page 30: ...008 1692 The operation sequences for the printer are controlled by the CPU in the DCNTboard in the engine control system The table below indicates the purposes and engine operations of each period fro...

Page 31: ...otation To transfer secondarily a toner image on the ITB to a paper and then delivers outpaper with toner fixed on Instant a print command is input from the interface controller the initial rotation s...

Page 32: ......

Page 33: ...Chapter 2 TECHNICAL REFERENCE...

Page 34: ......

Page 35: ...tent Image Formation Block 2 9 2 3 1 4 Developing Block 2 9 2 3 1 5 Transfer Block 2 10 2 3 1 6 Fixing Block 2 11 2 3 1 7 ITB Cleaning Block 2 12 2 3 2 Driving and Controlling the High Voltage System...

Page 36: ...3 3 1 Pick up Stationary Jam 2 33 2 4 3 3 2 Delivery Stationary Jam 2 33 2 4 3 4 Other Jams 2 33 2 4 3 4 1 Fixing Unit Wrapping Jam 2 33 2 4 3 4 2 Door Open Jam 2 33 2 4 3 4 3 Residual Paper Jam 2 33...

Page 37: ...ing by moving the CCD unit in ADF mode scanning by moving the original Reading resolution 1200 main scanning x 2400 sub scanning dpi ADF 600 x 600dpi Scanner position detection by home position sensor...

Page 38: ...t image data of the document then the delivery roller delivers it to the output tray The document feed motor drives the various rollers of the ADF Reading from the platen glass The CCD unit driven by...

Page 39: ...the CCD main sub scanning point adjustment 2 1 2 2 Basic Sequence of Operation in Response to a Press on the Start Key book 0008 2931 Basic Sequence of Operation in Response to a Press on the Start Ke...

Page 40: ...ully with the LASER CONTROL signal and then starts to control the rotation of the scanner motor 3 The DCNT Board rotates the motor at a specified speed with the SCANNER MOTOR SPEED CONTROL signal 4 Th...

Page 41: ...NT0 CNT1 CNT2 signals for changing the operation mode of the laser to the logic circuit in the laser driver IC The laser driver performs the laser control responsive to a combination of the CNT0 CNT1...

Page 42: ...e on mode during the unblanking period Note and emits light from the laser diodes LD1 LD2 forcefully 2 Each laser beam is sent to the BD PCB located on the scanning path of laser beams 3 The BD circui...

Page 43: ...ilure to the SCNT Board under the following conditions 1 Optical unit failure If the detected period of the BDI signal does not satisfy a specified range within 20 seconds at scanner motor start up or...

Page 44: ...per Step 5 Primary transfer Toner on the drum is transferred to the ITB Step 6 Secondary transfer Toner on the ITB is transferred to paper Step 7 Separation Paper separates from the ITB 4 Fixing block...

Page 45: ...roller is made with conductive rubber A DC bias is applied to the primary charging roller to keep the potential on the drum surface uniformly F 2 15 Step 2 Laser beam exposure An electrostatic latent...

Page 46: ...ollow in actuality they are negative However they are more positive than the charges on the cylinder F 2 18 2 3 1 5 Transfer Block 0007 4980 This block comprises three steps which transfers the toner...

Page 47: ...rom the ITB in the step This printer utilizes the static charge eliminator to reduce the charge on the back of paper and weaken the electrostatic adhesion of the paper and facilitate separation This m...

Page 48: ...ferred onto paper Some toner remains on the ITB This toner is called the residual toner Step 9 Auxiliary ITB cleaning roller charging In this step the holding force of the residual toner on the ITB is...

Page 49: ...m is scraped away with the cleaning blade The removed toner is collected with the waste toner screws into the waste toner case This allows the drum surface to be cleaned F 2 26 Photosensitive drum DC...

Page 50: ...adjustment of image density The developing bias is output to charge toner that was not charged by friction This bias is applied onto the blade in the toner cartridge at a specified timing 2 3 2 4 Prim...

Page 51: ...B cleaning bias is output to clean the ITB Three kinds of the biases DC positive bias DC negative bias and AC bias are generated in the ITB cleaning high voltage generation circuit in the high voltage...

Page 52: ...functions the rotary has are described next 2 3 4 2 Developing Rotary Rotation Control 0008 1707 This control is utilized to rotate the rotary during a print or toner cartridge removal operation in o...

Page 53: ...ime of rotary disengaging travelling from an engaging position to a disengaging position the DCNT Board rotates the engaging motor counterclockwise and instructs the reverse operation of rotary engagi...

Page 54: ...to print mode Then it rotates the motor clockwise for a specified period to switch the mode to initial mode The DCNT Board detects mode the printer is actually in from the detection results of the PS7...

Page 55: ...tes the information with specified timing and writes it to the memory tags for each cartridge The DCNT Board instructs the memory tag to read or write under the following conditions Read Power is turn...

Page 56: ...e hours of the developing cylinder which stored in the memory tag Developing cylinder usage hour DC application time data sent from the DCNT Board is written in the memory tag in the toner cartridge T...

Page 57: ...machine s drum cartridge is equipped with a mechanism that forms images on the ITB The drum cartridge consists of a drum cartridge and an ITB unit con structed as a single entity The following shows...

Page 58: ...This transmits the drive of the main motor DCM701 to the engaging cam Then the roller bushing is pushed out and the two rollers start to engage to the ITB 3 At this point the DCNT Board is monitoring...

Page 59: ...mory tag through the memory tag contact the DCNT Board updates data with specified timing and rewrites it to the mem ory tag The DCNT Board instructs the memory tag to read or write under the followin...

Page 60: ...ndicate the home position HP1 and increases the count each time a new light blocking face is detected HP2 HP3 HP4 3 In the case of full color operation the DCNT Board uses these signals to generate th...

Page 61: ...CK signal for secondary transfer bias exceed a specified value The DCNT Board determines a cartridge presence only when the three conditions above are satisfied When the DCNT Board determines a cartri...

Page 62: ...r cover is closed or a print job is over when the cumulative period of use reaches a specific level it will identify the condition as indicating the need of replacement of the drum cartridge c Waste T...

Page 63: ...hich are operated by the main motor drive The secondary transfer roller rotates by the motor drive The engaging lever performs an engaging operation between the secondary transfer roller and ITB in ro...

Page 64: ...DCNT Board is monitoring the output of the PS714 When the output becomes L it lets out the CL2 This allows the cam to stop and the secondary transfer roller to stop at its engaging position 4 After a...

Page 65: ...return the gear to its home position Then the DCNT Board detects the position of the secondary transfer roller engaging and disengaging by monitoring the FEEDBACK TR2S signal for the sec ondary transf...

Page 66: ...re controlled by the DCNT board which governs 2 motors 2 clutches and 2 solenoids The paper path is equipped with 3 photointerrupters PS1 PS711 PS717 PS720 checking to see whether paper has reached or...

Page 67: ...per as far as the fixing assembly These 2 assemblies have the following functions Cassette 1 picks up print paper from the cassette Multifeeder 1 picks up printed paper placed in the multifeeder tray...

Page 68: ...s a feed speed in two levels based on a paper type specification command sent from the SCNT Borad Types of paper and their feed speeds are indicated below T 2 6 2 4 2 3 Detecting the Machine Inside Te...

Page 69: ...d period t after the start of a re pick up operation the registration clutch is on the CPU determines a delivery delay jam t Approx 2 3 seconds 2 4 3 3 Stationary Jams 2 4 3 3 1 Pick up Stationary Jam...

Page 70: ...multiple fed paper is removed with the separation pad paper is sent to the registration roller 5 After the skew of paper is corrected with the registration shutter a feed speed is changed based on a p...

Page 71: ...nuous printing and it differs depending on the color of print monochrome or colors and the media type 3 Between sheets temperature control This control is to make the temperature of the fixing heater...

Page 72: ...for minimum 1 second during the print temperature control and between sheets temperature control the CPU judges it abnormal Abnormal low temperature on the sub thermistor If the sub thermistor contin...

Page 73: ...following operations according to the CPU 1 Laser scanner control 2 Control of communications with the interface controller 3 Power supply unit fixing control circuit low voltage power supply circuit...

Page 74: ...circuit drives each roller used for paper feed and image formation The DCNT Board drives the motor by controlling the MAIN MOTOR ACCELERATION MAIMACC signal and MAIN MOTOR DECELERATION MAIM DEC signal...

Page 75: ...value 2 6 2 5 Developing Rotary Motor Control 0008 1729 This control is utilized to drive the developing rotary motor DCM703 The DCM703 a three phase eight pole DC motor with a built in encoder drive...

Page 76: ...power supply PCB and car tridge The CPU IC101 controls the cooling fan The CPU outputs the FAN DRIVE FAN1D signal after receiving a print command from the interface controller and rotates the cooling...

Page 77: ...301 LAN control IC501 DDR memory IC502 DDR memory IC601 ADF motor driver IC651 book mode motor driver IC701 control panel controller IC801 fax modem IC1001 image processing controller IC1002 flash ROM...

Page 78: ...or an interface of a graphics system used in conjunction with an application CARPS is sued after installing it to a Microsoft Windows 2000 XP or 98 Me environment Use the CD ROM that comes with the m...

Page 79: ...Chapter 3 DISASSEMBLY AND ASSEMBLY...

Page 80: ......

Page 81: ...3 2 4 1 Removing the Cassettes 3 8 3 2 4 2 Removing the Rear Cover 3 8 3 2 4 3 Removing the Right Cover with the reader assembly intact 3 8 3 2 5 Left Cover 3 9 3 2 5 1 Removing the Cassettes 3 9 3 2...

Page 82: ...1 Removing the Rear Cover 3 26 3 2 14 2 Removing the Scanner Unit 3 26 3 2 14 3 Removing the Modular Board Cover 3 27 3 2 14 4 Removing the Modular PCB 3 27 3 2 15 Power Supply PCB 3 27 3 2 15 1 Remov...

Page 83: ...emperature Detection Thermistor 3 43 3 2 19 1 Removing the Rear Cover 3 43 3 2 19 2 Removing the Reader Assembly 3 44 3 2 19 3 Removing the Right Cover 3 44 3 2 19 4 Removing the Left Cover 3 45 3 2 1...

Page 84: ...ting the ADF Unit 3 61 3 3 6 6 Removing the Document feed roller 3 61 3 3 7 Pickup Roller Unit 3 63 3 3 7 1 Removing the Rear Cover 3 63 3 3 7 2 Removing the Scanner Unit 3 63 3 3 7 3 Removing the SCN...

Page 85: ...3 81 3 5 2 5 Removing the Power Supply Assembly 3 82 3 5 2 6 Removing the Face Down Cover 3 82 3 5 2 7 Removing the Top Cover 3 82 3 5 2 8 Removing the Right Frame 3 83 3 5 2 9 Removing the Shield Pl...

Page 86: ...Developing Rotary Stopper Solenoid 3 102 3 5 7 Density Detection PCB 3 102 3 5 7 1 Removing the Rear Cover 3 102 3 5 7 2 Removing the Reader Assembly 3 102 3 5 7 3 Removing the Right Cover 3 103 3 5 7...

Page 87: ...Removing the Face Down Cover 3 122 3 5 12 7 Removing the Top Cover 3 122 3 5 12 8 Removing the Right Frame 3 123 3 5 12 9 Removing the Shield Plate 3 123 3 5 12 10 Removing the Rotary Drive Assembly 3...

Page 88: ...3 6 7 6 Removing the Face Down Cover 3 140 3 6 7 7 Removing the Top Cover 3 140 3 6 7 8 Removing the Right Frame 3 142 3 6 7 9 Removing the Shield Plate 3 142 3 6 7 10 Removing the Inside Cover 3 142...

Page 89: ...Fixing Assembly 3 159 3 7 4 2 Removing the Face Up Cover 3 159 3 7 5 Pre Fixing Paper Detection Sensor 3 159 3 7 5 1 Removing the Rear Cover 3 159 3 7 5 2 Removing the Reader Assembly 3 160 3 7 5 3 Re...

Page 90: ......

Page 91: ...F 3 1 2 Toner cartridge removal 0007 8337 1 Remove the reinforcement plate 2 Be sure that the engaging sensor flag is at the position as shown in the following figure in toner cartridges memory tag co...

Page 92: ...inter F 3 4 3 2 EXTERNAL AND CONTROLS SYSTEM 3 2 1 Front Cover 3 2 1 1 Removing the Cassettes 0007 6971 1 Hold the grip and take out the cassette 3 2 1 2 Removing the Rear Cover 0007 6981 1 Disconnect...

Page 93: ...it becomes easy F 3 11 3 2 1 4 Removing the Left Cover with the reader assembly intact 0007 6984 1 Disconnect the plug 1 and free the cable 2 of the reader assembly from the guide F 3 12 2 Open the r...

Page 94: ...inside while pushing the guide assembly 2 toward the outside to free the bosses F 3 17 2 Slide the front cover 1 to the left to detach F 3 18 3 2 2 Rear Cover 3 2 2 1 Removing the Rear Cover 0007 6974...

Page 95: ...embly then detach the rear cover 1 F 3 24 3 2 3 3 Removing the Reader Assembly 0007 8480 1 Open the reader assembly and remove the left and right E rings 1 then pull out the pin 2 F 3 25 When closing...

Page 96: ...oving the Left Cover 0007 7016 1 Remove the 2 screws 1 from the side then remove the 3 claws 2 to detach the right cover 3 F 3 32 F 3 33 3 2 3 6 Removing the Power Supply Assembly 0007 7037 1 Remove t...

Page 97: ...3 is not blocking the feed path F 3 38 F 3 39 When attaching the top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 40 If y...

Page 98: ...rews 3 of the rear cover F 3 42 3 Open the reader assembly 4 and lift to free the 2 claws 5 F 3 43 4 Close the reader assembly then detach the rear cover 1 F 3 44 3 2 4 3 Removing the Right Cover with...

Page 99: ...isconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of the rear cover F 3 49 3 Open the reader assembly 4 and lift to free the 2 claws 5 F 3 50 4 Cl...

Page 100: ...6 1 Removing the Rear Cover 0007 8453 1 Disconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of the rear cover F 3 56 3 Open the reader assembly 4...

Page 101: ...move the 6 screws 1 and lift the reader unit to detach F 3 63 3 2 6 3 Removing the Scanner Unit 0008 9843 1 Remove the 2 screws 1 from the back then shift the scanner unit 2 to the back and lift it to...

Page 102: ...t the pin 2 F 3 69 When closing the reader assembly be sure to push in the arm 1 first F 3 70 2 Open the left and right claws in the direction of the arrows and detach the hinge cover 1 3 Free the 2 h...

Page 103: ...of the machine Whenever you have to replace the fixing assembly be sure to disconnect the power cord first Also be sure to wait unit the fixing assembly has cooled before removing it after disconnect...

Page 104: ...g the reader assembly be sure to push in the arm 1 first F 3 82 2 Open the left and right claws in the direction of the arrows and detach the hinge cover 1 3 Free the 2 harness bands 1 and disconnect...

Page 105: ...to detach the right cover 3 F 3 88 F 3 89 3 2 9 5 Removing the Power Supply Assembly 0007 8652 1 Remove the 6 screws 1 and detach the power supply assembly 2 F 3 90 3 2 9 6 Removing the Face Down Cov...

Page 106: ...e top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 96 If you are fitting the drum cartridge in the machine with the top co...

Page 107: ...ation clutch 4 F 3 101 The connector on the registration clutch side is designed to prevent discon nection If you have to detach the registration clutch be sure to disconnect the connector J113 on the...

Page 108: ...n detach the rear cover 1 F 3 108 3 2 10 2 Removing the Scanner Unit 0007 8057 1 Remove the platen glass cover 2 While removing the left and right claws detach the hinge cover 1 3 Remove the screw 2 a...

Page 109: ...hen detach the rear cover 1 F 3 116 3 2 11 2 Removing the Scanner Unit 0007 8062 1 Remove the platen glass cover 2 While removing the left and right claws detach the hinge cover 1 3 Remove the screw 2...

Page 110: ...3 123 MEMO Pay attention to the harness 3 as it is connected to the cover 3 Remove the 4 screws 1 and open the NCU unit 2 F 3 124 4 Disconnect the flat cable 1 and the connector 2 F 3 125 5 Remove th...

Page 111: ...the cable guide 2 F 3 132 Never remove the SCNT board F 3 133 3 2 12 DCNT Board 3 2 12 1 Removing the Rear Cover 0007 7954 1 Disconnect the cable 1 of the power supply assembly 2 Open the face up cove...

Page 112: ...ction of the arrows and detach the hinge cover 1 3 Free the 2 harness bands 1 and disconnect the 2 cables 2 connected to the reader assembly F 3 139 4 Open the harness band 1 and disconnect the 2 cabl...

Page 113: ...the power supply assembly 2 F 3 146 3 2 12 6 Removing the Face Down Cover 0007 7959 1 Remove the 2 screws 1 and slide the face down cover 2 in downward direction to detach F 3 147 3 2 12 7 Removing th...

Page 114: ...ith the top cover re moved be sure to do so with the drive release lever 1 fully in up position i e with drive disengaged If the drive release lever is in low position i e with drive engaged it forces...

Page 115: ...3 Open the reader assembly 4 and lift to free the 2 claws 5 F 3 158 4 Close the reader assembly then detach the rear cover 1 F 3 159 3 2 13 2 Removing the Scanner Unit 0007 8063 1 Remove the platen gl...

Page 116: ...he Rear Cover 0007 8061 1 Disconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of the rear cover F 3 166 3 Open the reader assembly 4 and lift to fr...

Page 117: ...ws 2 then detach the modular board 3 F 3 173 3 2 15 Power Supply PCB 3 2 15 1 Removing the Rear Cover 0007 7019 1 Disconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and rem...

Page 118: ...and disconnect the 2 cables connected to the reader assembly F 3 180 5 Remove the 6 screws 1 and lift the reader unit to detach F 3 181 3 2 15 3 Removing the Power Supply Assembly 0007 7022 1 Remove...

Page 119: ...7 8522 1 Disconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of the rear cover F 3 186 3 Open the reader assembly 4 and lift to free the 2 claws 5...

Page 120: ...0007 8526 1 Remove the 2 screws 1 of the side then remove the 3 claws 2 to detach the left cover 3 F 3 194 F 3 195 3 2 16 5 Removing the Left Cover 0007 8528 1 Remove the 2 screws 1 from the side the...

Page 121: ...ng screws 1 and 2 TP screws 2 then disconnect the connector 3 and detach the top cover 4 F 3 201 When attaching the top cover be sure to match its 2 positioners 1 and the 2 cut offs 2 of the face down...

Page 122: ...0011 6591 1 Remove the 5 screws 1 and detach the right frame 2 F 3 206 3 2 16 10 Removing the Left Frame 0007 8538 1 Remove the 4 screws 1 and detach the left frame 2 F 3 207 3 2 16 11 Removing the Ca...

Page 123: ...of the assembly before shifting down the machine If you must detach the lower case assembly base user to hold it by its bottom so as to avoid injury by the edge of its side plate 3 2 16 15 Removing th...

Page 124: ...sembly then detach the rear cover 1 F 3 219 3 2 17 3 Removing the Reader Assembly 0007 8457 1 Open the reader assembly and remove the left and right E rings 1 then pull out the pin 2 F 3 220 When clos...

Page 125: ...0007 7937 1 Remove the 2 screws 1 of the side then remove the 3 claws 2 to detach the left cover 3 F 3 225 F 3 226 3 2 17 5 Removing the Left Cover 0007 7938 1 Remove the 2 screws 1 from the side the...

Page 126: ...ng screws 1 and 2 TP screws 2 then disconnect the connector 3 and detach the top cover 4 F 3 232 When attaching the top cover be sure to match its 2 positioners 1 and the 2 cut offs 2 of the face down...

Page 127: ...0011 6592 1 Remove the 5 screws 1 and detach the right frame 2 F 3 237 3 2 17 10 Removing the Left Frame 0007 7944 1 Remove the 4 screws 1 and detach the left frame 2 F 3 238 3 2 17 11 Removing the Ca...

Page 128: ...to hold it by its bottom so as to avoid injury by the edge of its side plate 3 2 17 15 Removing the Sub High Voltage Power Supply PCB Unit 0007 7952 1 Remove 2 screws 1 disconnect the connector 2 remo...

Page 129: ...sembly then detach the rear cover 1 F 3 250 3 2 18 3 Removing the Reader Assembly 0008 2721 1 Open the reader assembly and remove the left and right E rings 1 then pull out the pin 2 F 3 251 When clos...

Page 130: ...0008 2724 1 Remove the 2 screws 1 of the side then remove the 3 claws 2 to detach the left cover 3 F 3 256 F 3 257 3 2 18 5 Removing the Left Cover 0008 2725 1 Remove the 2 screws 1 from the side the...

Page 131: ...ng screws 1 and 2 TP screws 2 then disconnect the connector 3 and detach the top cover 4 F 3 263 When attaching the top cover be sure to match its 2 positioners 1 and the 2 cut offs 2 of the face down...

Page 132: ...0011 6593 1 Remove the 5 screws 1 and detach the right frame 2 F 3 268 3 2 18 10 Removing the Left Frame 0008 2733 1 Remove the 4 screws 1 and detach the left frame 2 F 3 269 3 2 18 11 Removing the Ca...

Page 133: ...aser scanner assembly to pre vent intrusion of toner in the optical path of the assembly before shifting down the machine If you must detach the lower case assembly base user to hold it by its bottom...

Page 134: ...ction of the arrows and detach the hinge cover 1 3 Free the 2 harness bands 1 and disconnect the 2 cables 2 connected to the reader assembly F 3 282 4 Open the harness band 1 and disconnect the 2 cabl...

Page 135: ...the power supply assembly 2 F 3 289 3 2 19 6 Removing the Face Down Cover 0007 8657 1 Remove the 2 screws 1 and slide the face down cover 2 in downward direction to detach F 3 290 3 2 19 7 Removing th...

Page 136: ...ith the top cover re moved be sure to do so with the drive release lever 1 fully in up position i e with drive disengaged If the drive release lever is in low position i e with drive engaged it forces...

Page 137: ...of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of the rear cover F 3 300 3 Open the reader assembly 4 and lift to free the 2 claws 5 F 3 301 4 Close the reader assem...

Page 138: ...onnect the 2 cables connected to the reader assembly F 3 306 5 Remove the 6 screws 1 and lift the reader unit to detach F 3 307 3 2 20 3 Removing the Right Cover 0007 8600 1 Remove the 2 screws 1 of t...

Page 139: ...3 313 3 2 20 7 Removing the Top Cover 0007 8676 1 Remove the claw 1 and detach the ring gear 2 2 Free the link lever 3 from the shaft 4 F 3 314 3 Remove the 3 binding screws 1 and 2 TP screws 2 then d...

Page 140: ...low position i e with drive engaged it forces out the coupling 2 causing the coupling to interface with the drum car tridge and to suffer damage F 3 319 3 2 20 8 Removing the Left Frame 0007 8809 1 R...

Page 141: ...aten glass cover 2 While removing the left and right claws detach the hinge cover 1 3 Remove the screw 2 and detach the cable guide 3 F 3 326 4 Open the harness band 1 and free the 2 cables 2 connecte...

Page 142: ...back then shift the scanner unit 2 to the back and lift it to detach F 3 334 3 3 2 3 Removing the SCNT Board Unit 0007 8073 1 Remove the 8 screws 1 from behind the scanner unit and shift up the SCNT...

Page 143: ...ar Cover 0007 8075 1 Disconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of the rear cover F 3 341 3 Open the reader assembly 4 and lift to free th...

Page 144: ...0007 8079 1 Open the ADF unit 1 and detach the stopper 2 2 Remove the 3 claws 3 and detach the ADF front cover 4 F 3 349 3 Remove the ferrite core 1 from behind the scanner unit then free the harness...

Page 145: ...cover F 3 355 3 Open the reader assembly 4 and lift to free the 2 claws 5 F 3 356 4 Close the reader assembly then detach the rear cover 1 F 3 357 3 3 4 2 Removing the Scanner Unit 0007 8096 1 Remove...

Page 146: ...up the SCNT board unit 2 F 3 363 2 Open the SCNT board unit then disconnect the 6 connectors 1 and the 3 flat cables 2 F 3 364 3 3 4 5 Removing the ADF Unit 0007 8098 1 Open the ADF unit 1 and detach...

Page 147: ...Remove the 2 screws 3 and detach the flat bed motor unit 5 while paying attention to the drive belt 4 of the CCD unit F 3 371 3 3 4 9 Removing the CCD Unit 0007 8104 1 Push the claw 1 and free the cor...

Page 148: ...2 cables 2 connected to the reader assembly F 3 377 5 Remove the 2 screws 1 from the back then shift the scanner unit 2 to the back and lift it to detach F 3 378 3 3 5 3 Removing the SCNT Board Unit...

Page 149: ...the line can occur Be sure there is some slack when the ADF unit 2 is fully open F 3 384 3 3 5 6 Removing the Document Pickup Roller Unit 0009 9016 1 Remove the following claws in the order indicated...

Page 150: ...rear cover F 3 392 3 Open the reader assembly 4 and lift to free the 2 claws 5 F 3 393 4 Close the reader assembly then detach the rear cover 1 F 3 394 3 3 6 2 Removing the Scanner Unit 0009 9001 1 R...

Page 151: ...e 1 from behind the scanner unit then free the harness from the tape 2 F 3 401 4 Open the ADF unit 1 as shown then disengage it starting with the rear and then the front F 3 402 3 3 6 5 Points to Note...

Page 152: ...ng 1 and detach the arm 2 F 3 408 6 Remove the 2 screws 1 and detach the ADF inside cover 2 F 3 409 7 Remove the claw 1 and detach the gear 2 and the bearing 3 F 3 410 8 Remove the claw 1 and detach t...

Page 153: ...ving the Scanner Unit 0009 9007 1 Remove the platen glass cover 2 While removing the left and right claws detach the hinge cover 1 3 Remove the screw 2 and detach the cable guide 3 F 3 416 4 Open the...

Page 154: ...t starting with the rear and then the front F 3 423 3 3 7 5 Points to Note When Mounting the ADF Unit 0009 9010 Be sure to observe the following when mounting the ADF unit If the harness 1 is too taut...

Page 155: ...Reader Unit 3 3 8 1 Removing the Rear Cover 0007 8454 1 Disconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of the rear cover F 3 431 3 Open the re...

Page 156: ...band 1 and disconnect the 2 cables connected to the reader assembly F 3 437 5 Remove the 6 screws 1 and lift the reader unit to detach F 3 438 3 3 9 Flatbed Motor Unit 3 3 9 1 Removing the Rear Cover...

Page 157: ...9 3 Removing the SCNT Board Unit 0007 8085 1 Remove the 8 screws 1 from behind the scanner unit and shift up the SCNT board unit 2 F 3 445 2 Open the SCNT board unit then disconnect the 6 connectors 1...

Page 158: ...and detach the scanner cover unit 3 F 3 452 3 3 9 7 Removing the Flat Bed Motor Unit 0007 8090 1 Remove the screw 1 and detach the plate 2 2 Remove the 2 screws 3 and detach the flat bed motor unit 5...

Page 159: ...back then shift the scanner unit 2 to the back and lift it to detach F 3 459 3 3 10 3 Removing the SCNT Board Unit 0009 9013 1 Remove the 8 screws 1 from behind the scanner unit and shift up the SCNT...

Page 160: ...10 6 Removing the Document feed motor 0009 8759 1 Remove the following claws in the order indicated and detach the ADF rear cover 3 claw 1 claw 2 claw 3 F 3 466 2 Remove the 2 screws 1 and detach the...

Page 161: ...from the guide and remove the screw 2 then detach the sensor unit 3 F 3 474 4 Disconnect the connector 1 and remove the 4 claws 4 then detach the ADF feed sensor 3 F 3 475 3 3 13 Speaker 3 3 13 1 Rem...

Page 162: ...3 13 3 Removing the SCNT Board Unit 0007 8940 1 Remove the 8 screws 1 from behind the scanner unit and shift up the SCNT board unit 2 F 3 482 2 Open the SCNT board unit then disconnect the 6 connector...

Page 163: ...the pin 2 F 3 488 When closing the reader assembly be sure to push in the arm 1 first F 3 489 2 Open the left and right claws in the direction of the arrows and detach the hinge cover 1 3 Free the 2...

Page 164: ...to detach the right cover 3 F 3 495 F 3 496 3 4 1 5 Removing the Power Supply Assembly 0007 7968 1 Remove the 6 screws 1 and detach the power supply assembly 2 F 3 497 3 4 1 6 Removing the Face Down...

Page 165: ...he top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 503 If you are fitting the drum cartridge in the machine with the top...

Page 166: ...e Unit 3 5 1 1 Removing the Rear Cover 0007 8555 1 Disconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of the rear cover F 3 507 3 Open the reader...

Page 167: ...4 Open the harness band 1 and disconnect the 2 cables connected to the reader assembly F 3 513 5 Remove the 6 screws 1 and lift the reader unit to detach F 3 514 3 5 1 3 Removing the Right Cover 0007...

Page 168: ...520 3 5 1 7 Removing the Top Cover 0007 8677 1 Remove the claw 1 and detach the ring gear 2 2 Free the link lever 3 from the shaft 4 F 3 521 3 Remove the 3 binding screws 1 and 2 TP screws 2 then dis...

Page 169: ...ow position i e with drive engaged it forces out the coupling 2 causing the coupling to interface with the drum car tridge and to suffer damage F 3 526 3 5 1 8 Removing the Right Frame 0011 6595 1 Rem...

Page 170: ...isconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of the rear cover F 3 531 3 Open the reader assembly 4 and lift to free the 2 claws 5 F 3 532 4...

Page 171: ...connect the 2 cables connected to the reader assembly F 3 537 5 Remove the 6 screws 1 and lift the reader unit to detach F 3 538 3 5 2 3 Removing the Right Cover 0007 8608 1 Remove the 2 screws 1 of t...

Page 172: ...544 3 5 2 7 Removing the Top Cover 0007 8678 1 Remove the claw 1 and detach the ring gear 2 2 Free the link lever 3 from the shaft 4 F 3 545 3 Remove the 3 binding screws 1 and 2 TP screws 2 then dis...

Page 173: ...low position i e with drive engaged it forces out the coupling 2 causing the coupling to interface with the drum car tridge and to suffer damage F 3 550 3 5 2 8 Removing the Right Frame 0011 6596 1 Re...

Page 174: ...007 8561 1 Disconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of the rear cover F 3 556 3 Open the reader assembly 4 and lift to free the 2 claws...

Page 175: ...connect the 2 cables connected to the reader assembly F 3 562 5 Remove the 6 screws 1 and lift the reader unit to detach F 3 563 3 5 3 3 Removing the Right Cover 0007 8603 1 Remove the 2 screws 1 of t...

Page 176: ...569 3 5 3 7 Removing the Top Cover 0007 8679 1 Remove the claw 1 and detach the ring gear 2 2 Free the link lever 3 from the shaft 4 F 3 570 3 Remove the 3 binding screws 1 and 2 TP screws 2 then dis...

Page 177: ...low position i e with drive engaged it forces out the coupling 2 causing the coupling to interface with the drum car tridge and to suffer damage F 3 575 3 5 3 8 Removing the Right Frame 0011 6597 1 Re...

Page 178: ...0 2 Remove the 2 screws 1 and detach the front sub cover 2 F 3 581 When mounting the main drive assembly be sure to fit the gear 2 as shown with the drive release lever 1 in down position i e with dri...

Page 179: ...ach F 3 587 3 5 3 16 Removing the Laser Scanner Unit Base 0007 8849 1 Disconnect the 6 connectors 1 of the DC controller board F 3 588 2 Free the harness 1 from the harness guide 2 3 Disconnect the co...

Page 180: ...that the 2 tips of the rotary holder are fully fitted to the frame of the machine 3 5 4 Engaging Motor 3 5 4 1 Removing the Rear Cover 0007 8560 1 Disconnect the cable 1 of the power supply assembly 2...

Page 181: ...4 Open the harness band 1 and disconnect the 2 cables connected to the reader assembly F 3 600 5 Remove the 6 screws 1 and lift the reader unit to detach F 3 601 3 5 4 3 Removing the Right Cover 0007...

Page 182: ...607 3 5 4 7 Removing the Top Cover 0007 8680 1 Remove the claw 1 and detach the ring gear 2 2 Free the link lever 3 from the shaft 4 F 3 608 3 Remove the 3 binding screws 1 and 2 TP screws 2 then dis...

Page 183: ...t the coupling 2 causing the coupling to interface with the drum car tridge and to suffer damage F 3 613 3 5 4 8 Removing the Left Frame 0007 8811 1 Remove the 4 screws 1 and detach the left frame 2 F...

Page 184: ...the pin 2 F 3 619 When closing the reader assembly be sure to push in the arm 1 first F 3 620 2 Open the left and right claws in the direction of the arrows and detach the hinge cover 1 3 Free the 2...

Page 185: ...to detach the right cover 3 F 3 626 F 3 627 3 5 5 5 Removing the Power Supply Assembly 0007 8643 1 Remove the 6 screws 1 and detach the power supply assembly 2 F 3 628 3 5 5 6 Removing the Face Down...

Page 186: ...he top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 634 If you are fitting the drum cartridge in the machine with the top...

Page 187: ...e the 2 screws 2 F 3 638 2 Disconnect the connector 1 and remove the 3 screws 2 then detach the rotary drive assembly 3 F 3 639 Be sure to tighten the self tapping screw used to secure the rotary driv...

Page 188: ...ft and right E rings 1 then pull out the pin 2 F 3 644 When closing the reader assembly be sure to push in the arm 1 first F 3 645 2 Open the left and right claws in the direction of the arrows and de...

Page 189: ...to detach the right cover 3 F 3 651 F 3 652 3 5 6 5 Removing the Power Supply Assembly 0007 8644 1 Remove the 6 screws 1 and detach the power supply assembly 2 F 3 653 3 5 6 6 Removing the Face Down...

Page 190: ...the top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 659 If you are fitting the drum cartridge in the machine with the top...

Page 191: ...663 2 Disconnect the connector 1 and remove the 3 screws 2 then detach the rotary drive assembly 3 F 3 664 Be sure to tighten the self tapping screw used to secure the rotary drive as sembly only at t...

Page 192: ...Rear Cover 0007 8551 1 Disconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of the rear cover F 3 669 3 Open the reader assembly 4 and lift to free...

Page 193: ...connect the 2 cables connected to the reader assembly F 3 675 5 Remove the 6 screws 1 and lift the reader unit to detach F 3 676 3 5 7 3 Removing the Right Cover 0007 8589 1 Remove the 2 screws 1 of t...

Page 194: ...3 682 3 5 7 7 Removing the Top Cover 0007 8683 1 Remove the claw 1 and detach the ring gear 2 2 Free the link lever 3 from the shaft 4 F 3 683 3 Remove the 3 binding screws 1 and 2 TP screws 2 then di...

Page 195: ...low position i e with drive engaged it forces out the coupling 2 causing the coupling to interface with the drum car tridge and to suffer damage F 3 688 3 5 7 8 Removing the Inside Cover 0007 8856 1...

Page 196: ...ver 1 F 3 694 3 5 8 2 Removing the Reader Assembly 0007 8570 1 Open the reader assembly and remove the left and right E rings 1 then pull out the pin 2 F 3 695 When closing the reader assembly be sure...

Page 197: ...moving the Left Cover 0007 8613 1 Remove the 2 screws 1 from the side then remove the 3 claws 2 to detach the right cover 3 F 3 702 F 3 703 3 5 8 5 Removing the Power Supply Assembly 0007 8646 1 Remov...

Page 198: ...3 is not blocking the feed path F 3 708 F 3 709 When attaching the top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 710 I...

Page 199: ...e reader assembly 1 and the top cover 2 F 3 714 2 Remove the 2 screws 1 and detach the transfer inlet guide 2 F 3 715 3 Remove the 2 claws 1 of the left and right bushings then detach the transfer cha...

Page 200: ...ose the reader assembly then detach the rear cover 1 F 3 721 3 5 10 2 Removing the Reader Assembly 0007 8568 1 Open the reader assembly and remove the left and right E rings 1 then pull out the pin 2...

Page 201: ...r 0007 8588 1 Remove the 2 screws 1 of the side then remove the 3 claws 2 to detach the left cover 3 F 3 727 F 3 728 3 5 10 4 Removing the Left Cover 0007 8611 1 Remove the 2 screws 1 from the side th...

Page 202: ...ing screws 1 and 2 TP screws 2 then disconnect the connector 3 and detach the top cover 4 F 3 734 When attaching the top cover be sure to match its 2 positioners 1 and the 2 cut offs 2 of the face dow...

Page 203: ...he registration clutch 4 F 3 740 The connector on the registration clutch side is designed to prevent discon nection If you have to detach the registration clutch be sure to disconnect the connector J...

Page 204: ...007 8549 1 Disconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of the rear cover F 3 746 3 Open the reader assembly 4 and lift to free the 2 claws...

Page 205: ...onnect the 2 cables connected to the reader assembly F 3 752 5 Remove the 6 screws 1 and lift the reader unit to detach F 3 753 3 5 11 3 Removing the Right Cover 0007 8586 1 Remove the 2 screws 1 of t...

Page 206: ...3 759 3 5 11 7 Removing the Top Cover 0007 8686 1 Remove the claw 1 and detach the ring gear 2 2 Free the link lever 3 from the shaft 4 F 3 760 3 Remove the 3 binding screws 1 and 2 TP screws 2 then d...

Page 207: ...r tridge and to suffer damage F 3 765 3 5 11 8 Removing the Right Frame 0011 6601 1 Remove the 5 screws 1 and detach the right frame 2 F 3 766 3 5 11 9 Removing the Registration Clutch 0007 8826 1 Dis...

Page 208: ...position of the gear is correct so that it is fully engaged with the gear of the drive release lever F 3 770 3 Disconnect the 3 connectors 1 and remove the 8 screws 2 then detach the main drive assemb...

Page 209: ...tach F 3 775 3 5 11 14 Removing the Laser Scanner Unit Base 0007 8851 1 Disconnect the 6 connectors 1 of the DC controller board F 3 776 2 Free the harness 1 from the harness guide 2 3 Disconnect the...

Page 210: ...older are fully fitted to the frame of the machine 3 5 11 16 Removing the Developing Rotary Toner Level Detection PCB 0007 8854 1 Remove the 3 claws 1 and detach the developing rotary toner level dete...

Page 211: ...s 1 and disconnect the 2 cables 2 connected to the reader assembly F 3 788 4 Open the harness band 1 and disconnect the 2 cables connected to the reader assembly F 3 789 5 Remove the 6 screws 1 and li...

Page 212: ...F 3 796 3 5 12 7 Removing the Top Cover 0007 8687 1 Remove the claw 1 and detach the ring gear 2 2 Free the link lever 3 from the shaft 4 F 3 797 3 Remove the 3 binding screws 1 and 2 TP screws 2 the...

Page 213: ...w position i e with drive engaged it forces out the coupling 2 causing the coupling to interface with the drum car tridge and to suffer damage F 3 802 3 5 12 8 Removing the Right Frame 0011 6602 1 Rem...

Page 214: ...3 6 PICKUP AND FEEDING SYSTEM 3 6 1 Cassette Pickup Roller 3 6 1 1 Removing the Cassettes 0007 7056 1 Hold the grip and take out the cassette 3 6 1 2 Removing the Rear Cover 0007 7057 1 Disconnect the...

Page 215: ...ift the release knob 1 slightly and turn it bout 90 deg toward the rear then slide the release knob fully F 3 816 4 Slide the pickup roller 1 fully then slide the pickup roller at an angle in downward...

Page 216: ...ng the reader assembly be sure to push in the arm 1 first F 3 822 2 Open the left and right claws in the direction of the arrows and detach the hinge cover 1 3 Free the 2 harness bands 1 and disconnec...

Page 217: ...to detach the right cover 3 F 3 828 F 3 829 3 6 2 6 Removing the Power Supply Assembly 0007 8649 1 Remove the 6 screws 1 and detach the power supply assembly 2 F 3 830 3 6 2 7 Removing the Face Down...

Page 218: ...the top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 836 If you are fitting the drum cartridge in the machine with the top...

Page 219: ...e and detach the cassette feeder 1 F 3 840 3 6 2 12 Removing the Cassette Paper Sensor 0007 8882 1 Remove the 2 claws 1 F 3 841 2 Disconnect the connector 1 and detach the paper sensor 2 F 3 842 3 6 3...

Page 220: ...t the pin 2 F 3 846 When closing the reader assembly be sure to push in the arm 1 first F 3 847 2 Open the left and right claws in the direction of the arrows and detach the hinge cover 1 3 Free the 2...

Page 221: ...to detach the right cover 3 F 3 853 F 3 854 3 6 3 6 Removing the Power Supply Assembly 0007 8650 1 Remove the 6 screws 1 and detach the power supply assembly 2 F 3 855 3 6 3 7 Removing the Face Down...

Page 222: ...the top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 861 If you are fitting the drum cartridge in the machine with the top...

Page 223: ...e 2 F 3 864 3 6 3 11 Removing the Cassette Feeder 0007 8883 1 Lift the machine and detach the cassette feeder 1 F 3 865 3 6 3 12 Removing the Cassette Feed Sensor 0007 8884 1 Remove the claw 1 and det...

Page 224: ...reader assembly then detach the rear cover 1 F 3 872 3 6 4 3 Removing the Reader Assembly 0007 8484 1 Open the reader assembly and remove the left and right E rings 1 then pull out the pin 2 F 3 873 W...

Page 225: ...moving the Left Cover 0007 7066 1 Remove the 2 screws 1 from the side then remove the 3 claws 2 to detach the right cover 3 F 3 880 F 3 881 3 6 4 6 Removing the Power Supply Assembly 0007 7067 1 Remov...

Page 226: ...3 is not blocking the feed path F 3 886 F 3 887 When attaching the top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 888 I...

Page 227: ...12 Removing the Cassette Pickup Solenoid 0007 7098 1 Remove the 3 claws 1 and slide the PCB cover 2 to detach F 3 893 2 Remove the screw 1 and detach the dust blocking plate 2 F 3 894 3 Disconnect th...

Page 228: ...ver 2 Remove the claw 1 and detach the pickup roller protective cover 2 F 3 899 3 Pick the release claw 1 and slide the bush 2 in the direction of the arrow F 3 900 4 Pick the release claw 1 and slide...

Page 229: ...ng the reader assembly be sure to push in the arm 1 first F 3 906 2 Open the left and right claws in the direction of the arrows and detach the hinge cover 1 3 Free the 2 harness bands 1 and disconnec...

Page 230: ...to detach the right cover 3 F 3 912 F 3 913 3 6 7 5 Removing the Power Supply Assembly 0007 7112 1 Remove the 6 screws 1 and detach the power supply assembly 2 F 3 914 3 6 7 6 Removing the Face Down...

Page 231: ...the top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 920 If you are fitting the drum cartridge in the machine with the top...

Page 232: ...tration clutch 4 F 3 925 The connector on the registration clutch side is designed to prevent discon nection If you have to detach the registration clutch be sure to disconnect the connector J113 on t...

Page 233: ...F 3 930 4 Disconnect the connector 1 and remove the screw 2 then detach the manual feed pickup solenoid 3 F 3 931 3 6 8 Manual Separation Roller 3 6 8 1 Removing the Cassettes 0007 8510 1 Hold the gri...

Page 234: ...op it becomes easy F 3 938 3 6 8 4 Removing the Left Cover with the reader assembly intact 0007 8513 1 Disconnect the plug 1 and free the cable 2 of the reader assembly from the guide F 3 939 2 Open t...

Page 235: ...945 3 6 8 7 Removing the Manual Feed Pickup Separation Pad 0007 8516 1 Remove the screw 1 and detach the manual feed pickup separation pad 2 F 3 946 3 6 9 Registration Detection PCB 3 6 9 1 Removing t...

Page 236: ...it after disconnecting the power cord F 3 948 3 6 9 3 Removing the Rear Cover 0007 8548 1 Disconnect the cable 1 of the power supply assembly 2 Open the face up cover 2 and remove the 4 screws 3 of t...

Page 237: ...connect the 2 cables connected to the reader assembly F 3 955 5 Remove the 6 screws 1 and lift the reader unit to detach F 3 956 3 6 9 5 Removing the Right Cover 0007 8585 1 Remove the 2 screws 1 of t...

Page 238: ...3 962 3 6 9 9 Removing the Top Cover 0008 2393 1 Remove the claw 1 and detach the ring gear 2 2 Free the link lever 3 from the shaft 4 F 3 963 3 Remove the 3 binding screws 1 and 2 TP screws 2 then di...

Page 239: ...the drive release lever is in low position i e with drive engaged it forces out the coupling 2 causing the coupling to interface with the drum car tridge and to suffer damage F 3 968 3 6 9 10 Removing...

Page 240: ...ower case assembly 3 F 3 976 When you shift down the machine be sure to take care to avoid injury by the edge of the side plate Also be sure to hold it by its grip segment Be sure to place a cushionin...

Page 241: ...981 3 6 10 2 Removing the Reader Assembly 0007 8487 1 Open the reader assembly and remove the left and right E rings 1 then pull out the pin 2 F 3 982 When closing the reader assembly be sure to push...

Page 242: ...moving the Left Cover 0007 8005 1 Remove the 2 screws 1 from the side then remove the 3 claws 2 to detach the right cover 3 F 3 989 F 3 990 3 6 10 5 Removing the Power Supply Assembly 0007 8007 1 Remo...

Page 243: ...r 3 is not blocking the feed path F 3 995 F 3 996 When attaching the top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 997...

Page 244: ...stration clutch 4 F 3 1002 The connector on the registration clutch side is designed to prevent discon nection If you have to detach the registration clutch be sure to disconnect the connector J113 on...

Page 245: ...it the fixing assembly has cooled before removing it after disconnecting the power cord F 3 1008 3 7 2 Fixing Film Unit 3 7 2 1 Removing the Fixing Assembly 0011 7849 1 Turn the lever 1 of the fixing...

Page 246: ...remove the 2 claws 2 and the boss 3 to detach the fixing upper cover 4 F 3 1013 Make sure that the 2 springs are fitted onto the bosses on the fixing upper cover when reassembling the cover See the f...

Page 247: ...0011 7853 1 Turn the lever 1 of the fixing assembly 90 deg in the direction of the arrow 2 While holding the grip 2 slide out the fixing assembly 3 toward the front and out of the machine Whenever you...

Page 248: ...itions of the boss and springs shown on the left F 3 1026 6 Remove the upper separation guide 1 7 Remove the 2 releasing levers 2 8 Slide the pressure plate 4 in upward direction and remove the 2 boss...

Page 249: ...hile holding the grip 2 slide out the fixing assembly 3 toward the front and out of the machine Whenever you have to replace the fixing assembly be sure to disconnect the power cord first Also be sure...

Page 250: ...ng the reader assembly be sure to push in the arm 1 first F 3 1040 2 Open the left and right claws in the direction of the arrows and detach the hinge cover 1 3 Free the 2 harness bands 1 and disconne...

Page 251: ...to detach the right cover 3 F 3 1046 F 3 1047 3 7 5 5 Removing the Power Supply Assembly 0007 8889 1 Remove the 6 screws 1 and detach the power supply assembly 2 F 3 1048 3 7 5 6 Removing the Face Do...

Page 252: ...the top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 1054 If you are fitting the drum cartridge in the machine with the t...

Page 253: ...1 from the connector 2 Remove the 6 screws 2 and detach the shielding plate 3 F 3 1059 3 7 5 12 Removing the Inside Cover 0007 8898 1 Remove the 2 claws 1 and detach the inside cover 2 F 3 1060 3 7 5...

Page 254: ...correct so that it is fully engaged with the gear of the drive release lever F 3 1064 3 Disconnect the 3 connectors 1 and remove the 8 screws 2 then detach the main drive assembly 3 F 3 1065 3 7 5 15...

Page 255: ...Moreover be sure to tape the opening of the laser scanner assembly to pre vent intrusion of toner in the optical path of the assembly before shifting down the machine If you must detach the lower case...

Page 256: ...the pin 2 F 3 1077 When closing the reader assembly be sure to push in the arm 1 first F 3 1078 2 Open the left and right claws in the direction of the arrows and detach the hinge cover 1 3 Free the...

Page 257: ...to detach the right cover 3 F 3 1084 F 3 1085 3 7 6 5 Removing the Power Supply Assembly 0007 8651 1 Remove the 6 screws 1 and detach the power supply assembly 2 F 3 1086 3 7 6 6 Removing the Face Do...

Page 258: ...the top cover be sure to fit the link lever 2 while keeping the drive release lever 1 in up position i e with drive disengaged F 3 1092 If you are fitting the drum cartridge in the machine with the t...

Page 259: ...3 7 6 9 Removing the Shield Plate 0011 6625 1 Free the flat cable 1 from the connector 2 Remove the 6 screws 2 and detach the shielding plate 3 F 3 1095 3 7 6 10 Removing the Fixing Motor 0011 7566 1...

Page 260: ......

Page 261: ...Chapter 4 MAINTENANCE AND INSPECTION...

Page 262: ......

Page 263: ...4 1 4 Drum Cartridge 4 1 4 1 5 Mylar Sheet 4 1 4 1 6 Pressure Roller fixing assembly 4 1 4 1 7 Density Sensor ITB Home Position Sensor 4 2 4 2 Periodically Replaced Parts 4 2 4 2 1 Periodic Replacemen...

Page 264: ......

Page 265: ...and then wipe the glass dry with another cloth F 4 2 4 1 3 Toner Cartridge 0008 1734 Replace it as necessary 4 1 4 Drum Cartridge 0008 1735 Replace it as necessary 4 1 5 Mylar Sheet 0008 1736 If neces...

Page 266: ...B home position detection sensor is not clean In these cases clean the detection windows according to the procedures shown above 4 2 Periodically Replaced Parts 4 2 1 Periodic Replacement Parts 0003 0...

Page 267: ...Chapter 4 4 3 4 4 Periodical Service 4 4 1 Periodic Service 0003 0865 The printer has no parts that require periodic servicing...

Page 268: ......

Page 269: ...Chapter 5 TROUBLESHOOTING...

Page 270: ......

Page 271: ...Switches 5 6 5 5 1 2 Service Data Setting 5 6 5 5 1 3 Service Data Entry Method 5 7 5 5 2 Service Soft Switch Settings SSSW 5 7 5 5 2 1 Outline 5 7 5 5 2 1 1 Explanation of SSSW 5 7 5 5 2 2 SSSW SW14...

Page 272: ......

Page 273: ...em four sided mirror reflective mirror lens etc will result in a light print image b As the photosensitive drum is cold the resistance of the photoconductive layer is high this will lead to incorrect...

Page 274: ...3 Select face up delivery 4 Press the test print switch 5 Open the delivery door immediately after the leading edge of the print has come out to the face up tray Take out the print from the printer af...

Page 275: ...esoldering wick Lint free paper Oiler Plastic jar CK 0329 CK 0330 CK 0336 CK 0349 CK 0351 1 5 mm dia 1 mm 1 5 mm 500SH PKG 30cc 30cc 31 Digital multi measure FY9 2032 No Name Use Remarks 1 Alcohol Cle...

Page 276: ...J302 J201 J112 J119 J108 J115 J114 J106 J137 J705 J105 J104 J714 J122 J702 J136 J133 J134 J135 J113 J505 J403 J716 J717 J2304 J2302 J220 J230 J2303 JFAN1 JAMTR1 JBMTR1 JSPK1 JSNS1 JOP702 JOP701 JEROM1...

Page 277: ...ror codes in this Manual are limited to SYSTEM ERROR E numeral For descriptions on numeral see the separately available G3 G4 Facsimile Error Code Service Handbook The following is a list of service e...

Page 278: ...e SYSTEM Do not use COUNTER Counter indication Count data such as the read and print are displayed REPORT Report output Use it to output reports on various service data E010 main motor fault Check the...

Page 279: ...ine 5 5 2 1 1 Explanation of SSSW 0008 1883 The items registered and set by each of these switches comprise 8 bit switches The figure below shows which numbers are assigned to which bits Each bit has...

Page 280: ...goes back to STANDARD when CLEAR ALL is executed there is a need to change the TYPE setting to conform to the communications standards of a specific country region 5 5 4 Test Mode TEST 5 5 4 1 Overvie...

Page 281: ...print test if the printing was normal copy a document If there is any defect in the copied image there is a defect in the scan section 5 5 4 4 Modem Test 5 5 4 4 1 Modem Tests 0008 1981 The Modem Test...

Page 282: ...from the MODEM test menu The V 34 G3 signals below are sent from the modem using the modular jack and the speaker by pressing the B W Start key The Baud rate can be changed with the numeric keys and t...

Page 283: ...ing correctly Operation panel test Tests whether the button switches on the control panel are operating correctly Line signal reception test Tests whether the NCU board signal sensor and frequency cou...

Page 284: ...after the LED lamp test is done In this test a character disappears when its operation key is pressed The list of characters and their operation keys is as follows Check to make sure at this time that...

Page 285: ...splay has gone out When a key is pressed the corresponding character goes out When a one touch speed dialing key is pressed the corresponding letter goes out 0123456789 ABCDEDFG HIJKLMNOPQRS 012345678...

Page 286: ......

Page 287: ...Chapter 6 APPENDIX...

Page 288: ......

Page 289: ...olenid 6 1 6 1 2 Motor Fan 6 1 6 1 2 1 Motor Fan 6 1 6 1 3 Sensor 6 2 6 1 3 1 Sensor 6 2 6 1 4 Switch 6 2 6 1 4 1 Switch Speaker Thermistor 6 2 6 1 5 PCBs 6 3 6 1 5 1 PCBs 6 3 6 1 6 Variable Resistors...

Page 290: ......

Page 291: ...solenoid SL93 2 Multi purpose tray pick up solenoid SL92 3 Roller engaging clutch CL2 4 Registration clutch CL1 5 Cassette pick up solenoid SL9 NO Name Notation 1 Engaging motor PM704 2 Developing ro...

Page 292: ...r sensor PS1 3 Developing rotary engaging sensor PS712 4 Front fixing paper detection sensor PS720 5 Roller engaging sensor PS714 6 Paper Delivery Sensor PS721 7 Cassette Feeder Sensor PS717 8 Cassett...

Page 293: ...ools measuring instruments and high precision Do not touch them in the field 1 ITB home position detection PCB F 6 6 T 6 6 1 Waste toner detection PCB 10 Relay PCB 2 Registration detection PCB 11 Pape...

Page 294: ......

Page 295: ...Jan 20 2006...

Page 296: ......

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