Page 1: Service Manual
Service Manual MF8100 Series LaserBase MF8180C Jan 20 2006...
Page 3 Canon will release technical information as the 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.
Page 4 Introduction Symbols Used This documentation uses the following symbols to indicate special information: Symbol Description Indicates an item of a non-specific nature, possibly classified as Note, Caution, or Warning. Indicates an item requiring care to avoid electric shocks. Indicates an item requiring care to avoid combustion (fire). Indicates an item prohibiting disassembly to avoid electric shocks or problems.
Page 5 Introduction The following rules apply throughout this Service Manual: 1. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with refer- ence to the timing of operation. In the diagrams, represents the path of mechanical drive; where a signal name accompanies the symbol , the arrow indicates the direction of the electric signal.
Page 7: Table Of Contents
Contents Contents Chapter 1 PRODUCT DESCRIPTION 1.1 Product Specifications ..........................1- 1 1.1.1 Product Specifications ............................. 1- 1 1.2 Names of Parts ............................1- 3 1.2.1 External View................................1- 3 1.2.2 Cross Sectional View............................... 1- 4 1.2.3 Major Unit ................................1- 4 1.2.4 Major Component ..............................
Page 8 Contents 2.3.2 Driving and Controlling the High-Voltage System....................2- 14 2.3.2.1 Outline....................................2- 14 2.3.2.2 Primary Charging Bias Generation ............................2- 14 2.3.2.3 Developing Bias Generation ..............................2- 14 2.3.2.4 Primary Transfer Bias Generation ............................2- 14 2.3.2.5 Secondary Transfer Bias Generation............................. 2- 15 2.3.2.6 Auxiliary ITB Cleaning Bias Generation..........................
Page 9 2.6.2.6 Cooling Fan.................................... 2- 40 2.6.3 System Controller (SCNT)............................. 2- 41 2.6.3.1 Outline....................................2- 41 2.6.3.2 Canon Advanced Printing TechnologyÅ@(CARPS)......................2- 41 Chapter 3 DISASSEMBLY AND ASSEMBLY 3.1 Cartridge Removal at Trouble Eruption Cartridge Removal at Trouble Eruption........3- 1 3.1.1 Cartridge Removal at Trouble Eruption ........................3- 1 3.1.2 Toner cartridge removal ............................
Page 10 Contents 3.2.8.2 Removing the Face-Up Cover ............................... 3- 13 3.2.9 Main Drive Unit ..............................3- 13 3.2.9.1 Removing the Rear Cover ..............................3- 13 3.2.9.2 Removing the Reader Assembly ............................3- 14 3.2.9.3 Removing the Right Cover..............................3- 15 3.2.9.4 Removing the Left Cover ............................... 3- 15 3.2.9.5 Removing the Power Supply Assembly ..........................
Page 11 Contents 3.2.16.12 Removing the Shield Plate ..............................3- 32 3.2.16.13 Removing the Fan Duct..............................3- 32 3.2.16.14 Removing the Lower Case Assembly ..........................3- 33 3.2.16.15 Removing the Printer Power Supply PCB .......................... 3- 33 3.2.17 High-voitage Power Supply PCB ......................... 3- 33 3.2.17.1 Removing the Fixing Assembly............................
Page 12 Contents 3.3.1.1 Removing the Rear Cover ..............................3- 51 3.3.1.2 Removing the Scanner Unit ..............................3- 51 3.3.2 ADF Unit ................................3- 51 3.3.2.1 Removing the Rear Cover ..............................3- 51 3.3.2.2 Removing the Scanner Unit ..............................3- 52 3.3.2.3 Removing the SCNT Board Unit ............................3- 52 3.3.2.4 Removing the ADF Unit .................................
Page 13 Contents 3.3.10.3 Removing the SCNT Board Unit ............................3- 69 3.3.10.4 Removing the ADF Unit ............................... 3- 69 3.3.10.5 Points to Note When Mounting the ADF Unit........................3- 70 3.3.10.6 Removing the Document feed motor ........................... 3- 70 3.3.11 DS Sensor ................................3- 70 3.3.11.1 Removing the ADF Paper Sensor............................
Page 14 Contents 3.5.3.14 Removing the Left Frame..............................3- 89 3.5.3.15 Removing the Fan Duct ............................... 3- 89 3.5.3.16 Removing the Laser Scanner Unit Base ..........................3- 89 3.5.3.17 Removing the Developing Rotary Assembly........................3- 89 3.5.4 Engaging Motor..............................3- 90 3.5.4.1 Removing the Rear Cover ..............................3- 90 3.5.4.2 Removing the Reader Assembly ............................
Page 15 Contents 3.5.9 Transfer Charging Roller ............................. 3- 109 3.5.9.1 Removing the Transfer Charging Roller ..........................3- 109 3.5.10 Waste toner Detection PCB..........................3- 110 3.5.10.1 Removing the Rear Cover..............................3- 110 3.5.10.2 Removing the Reader Assembly............................3- 110 3.5.10.3 Removing the Right Cover ..............................3- 111 3.5.10.4 Removing the Left Cover ..............................
Page 16 Contents 3.6.2.11 Removing the Cassette Feeder ............................3- 129 3.6.2.12 Removing the Cassette Paper Sensor..........................3- 129 3.6.3 Cassette Feed Sensor ............................3- 129 3.6.3.1 Removing the Cassettes..............................3- 129 3.6.3.2 Removing the Rear Cover ..............................3- 129 3.6.3.3 Removing the Reader Assembly ............................3- 130 3.6.3.4 Removing the Right Cover..............................
Page 17 Contents 3.6.9.5 Removing the Right Cover..............................3- 147 3.6.9.6 Removing the Left Cover ..............................3- 147 3.6.9.7 Removing the Power Supply Assembly ..........................3- 148 3.6.9.8 Removing the Face-Down Cover............................3- 148 3.6.9.9 Removing the Top Cover ..............................3- 148 3.6.9.10 Removing the Right Frame ..............................
Page 18 Contents 3.7.6 Fixing Motor .................................3- 165 3.7.6.1 Removing the Rear Cover ..............................3- 165 3.7.6.2 Removing the Reader Assembly ............................3- 166 3.7.6.3 Removing the Right Cover..............................3- 167 3.7.6.4 Removing the Left Cover ..............................3- 167 3.7.6.5 Removing the Power Supply Assembly ..........................3- 167 3.7.6.6 Removing the Face-Down Cover............................
Page 19 Contents 5.5.2.2 SSSW-SW14 ................................... 5- 7 5.5.2.3 SSSW-SW18 ................................... 5- 8 5.5.3 Data Initialization Mode (CLEAR)..........................5- 8 5.5.3.1 # CLEAR ....................................5- 8 5.5.4 Test Mode (TEST) ..............................5- 8 5.5.4.1 Overview ....................................5- 8 5.5.4.2 DRAM Test ....................................5- 8 5.5.4.3 Print Test....................................
Page 20 Contents...
Page 21: Chapter 1 Product Description
Chapter 1 PRODUCT DESCRIPTION...
Page 23 Contents Contents 1.1 Product Specifications..............................1-1 1.1.1 Product Specifications ................................. 1-1 1.2 Names of Parts ................................1-3 1.2.1 External View ....................................1-3 1.2.2 Cross Sectional View ................................... 1-4 1.2.3 Major Unit....................................1-4 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 ....................................
Page 25: Product Specifications
Chapter 1 1.1 Product Specifications 1.1.1 Product Specifications 0012-0205 Body installation method desktop Exposure Method by semiconductor laser (2-beam laser) Development Method contact development Transfer Method primary transfer: by transfer belt secondary transfer: by transfer roller Fixing method on-demand Delivery method face-down/face-up Toner level detection function Toner supply type...
Page 26 Chapter 1 Option none Applicable lines Applicable line analog (1-line) subscriber line (PSTN) Handset none Transmission method half-duplex Transmission control protocol ITU-T T.30 binary Modulation method G3 image signal: ITU-T V.27ter (4.8k, 2.4k bps), ITU-T V.29 (9.6k, 7.2k bps), ITU-T V.17 (14.4k, 12.0k, TC9.6k, TC7.2k bps), ITU-T V.34 (33.6k, 31.2k, 28.8k, 26.4k, 24.0k, 21.6k, 19.2k, 16.8k, 14.4k, 12.0k, 9.6k, 7.2k, 4.8k, 2.4k bps) / G3 procedural signal :...
Page 27: Names Of Parts
Chapter 1 1.2 Names of Parts 1.2.1 External View 0007-4608 [10] [11] F-1-1 Operation panel Front cover ADF (Auto Document Feeder) Cassette Document feeder tray Platen glass cover Document guides [10] Platen glass Output tray [11] Multi-purpose tray Cartridge cover [17] [12] [13]...
Page 28: Cross Sectional View
Chapter 1 1.2.2 Cross Sectional View 0007-4617 [25] [23] [10] [11] [12] [13] [24] [20] [22] [21] [19] [18] [17] [16] [15] [14] F-1-3 Laser/scanner unit [14] Registration roller unit Developing cylinder [15] Secondary transfer roller Photosensitive drum [16] Auxiliary ITB cleaning roller Primary charging roller [17] Feed belt...
Page 29: Major Component
Chapter 1 Main drive assembly Developing rotary assembly Registration shutter assembly Fixing assembly 1.2.4 Major Component 0007-4619 [12] [10] [11] [13] F-1-5 Toner cartridge memory tag contact Thermal fuse Machine inside temperature thermistor Main thermistor Multifeeder pickup roller [10] Sub thermistor Separation pad [11] Fixing film assembly...
Page 30: Cdrh Ordinances
Chapter 1 DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS. 1.3.5 CDRH Ordinances 0011-0549 The Center for Devices and Radiological Health (CDRH) of the US Food and Drum Administration put into force ordinances related to laser products on August 2, 1976. These ordinances apply to laser products manufactured on and after August 1, 1976, and sale of laser products is prohibited within the US unless they bear a certificate of compliance.
Page 31: Power-On Sequence
Chapter 1 PRINT From the end of the INTR To form an image on the (Print) period until the ITB home photosensitive drum based on position for the secondary the VIDEO signal input from transfer is detected. the interface controller and transfer a toner image to the ITB.
Page 33: Chapter 2 Technical Reference
Chapter 2 TECHNICAL REFERENCE...
Page 35 Contents Contents 2.1 Document Feed and Exposure System...........................2-1 2.1.1 Overview/Configuration ................................2-1 2.1.1.1 Overview .........................................2-1 2.1.1.2 Major 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................................2-4 2.2.1 Overview/Configuration ................................
Page 36 2.6.2.3 Controlling the Motors and Fans .................................. 2-38 2.6.2.4 Main Motor Control...................................... 2-38 2.6.2.5 Developing Rotary Motor Control................................2-39 2.6.2.6 Cooling Fan........................................2-40 2.6.3 System Controller (SCNT) ................................ 2-41 2.6.3.1 Outline .......................................... 2-41 2.6.3.2 Canon Advanced Printing Technology　(CARPS) ............................. 2-41...
Page 37: Document Feed And Exposure System
Chapter 2 2.1 Document Feed and Exposure System 2.1.1 Overview/Configuration 2.1.1.1 Overview 0008-1957 The following are the major specifications, control mechanisms, and functions associated with the original feed/exposure system: T-2-1 Item Function/method Scanning lamp cathode ray tube Original scanning in book mode: scanning by moving the CCD unit in ADF mode: scanning by moving the original Reading resolution 1200(main scanning) x 2400 (sub scanning) dpi...
Page 38: Basic Sequence
Chapter 2 F-2-2 T-2-3 [1] Document feed motor [3] CCD unit [2] Flatbed motor Reading from the ADF To avoid skew feeding, documents loaded on the document tray are retained in the horizontal direction by the slide guide. Then, the documents are fed to the sep- aration roller by the pickup roller, and separated one sheet each using differences in the coefficient of friction among the separation roller, documents, and separation guide.
Page 39: Basic Sequence Of Operation In Response To A Press On The Start Key (Book)
Chapter 2 shading position 1. black shading*1 2. scanning lamp ON 3. scanning lamp warm-up*2 4. gain correction*3 5. main/sub scanning position adjustment F-2-4 *1: black shading correction (the dark output analog level is adjusted so that the image density digital level is '0'). *2: scanning lamp warm-up (lasts until the temperature of the scanning lamp stabilizes).
Page 40: Laser Exposure
Chapter 2 shading position Book read start position read end position Position *1 1. gain correction*1 2. shift shading*2 3. original scan *The term "book position" refers to the position at which the motor is accelerated to prepare for reading. F-2-6 2.2 Laser Exposure 2.2.1 Overview/Configuration...
Page 41: Controlling The Laser
Chapter 2 8) When the four-sided mirror rotates at a constant speed, the laser beam striking the photosensitive drum scans on the drum at a constant speed. 9) When the photosensitive drum rotates and the laser beam scans on the photosensitive drum, at each specified speed, a latent image is formed on the drum. Twin beam method Two laser diodes (LD1, LD2) are built into the laser unit.
Page 42: Laser Emission Control
Chapter 2 2) Automatic power control (APC) 3) Horizontal synchronization control 4) Image mask control 2.2.2.2 Laser Emission Control 0008-1542 In this control, the laser diodes (LD1, LD2) are turned on/off based on the VIDEO signals. When the laser drive IC goes into print mode, the laser driver PCB turns on the laser diodes with a specified amount of light or turns it off according to the VIDEO (VDO1, /VDO1, VDO2, /VDO2) signals sent from the SCNT Board.
Page 43: Controlling The Laser Scanner Motor
Chapter 2 2.2.3 Controlling the Laser Scanner Motor 2.2.3.1 Outline 0008-2075 The control is utilized to rotate the scanner motor in order to strike laser beams to a proper position on the photosensitive drum. The circuit diagram of the scanner motor control is illustrated below. DCNT Board Laser/scanner unit J1 16-2...
Page 44: Image Formation Process
Chapter 2 Primary charging roller Toner cartridge Memory tag Developing cylinder Memory tag Primary transfer Blade Photo roller sensitive drum Developing Image cartridge rotary Fixing unit Secondary transfer roller Auxiliary SUB- H.V.T cleaning ITB cleaning roller roller H.V.T VIDEO Print command signal F-2-12 2.3.1.2 Image Formation Process...
Page 45: Electrostatic Latent Image Formation Block
Chapter 2 5) ITB cleaning block Cleans residual toner on the photosensitive drum and ITB. Step 9: Auxiliary ITB cleaning roller charging - Residual toner on the ITB is charged in order to be held on the ITB. Step 10: ITB cleaning roller charging - Residual toner on the ITB is charged. Step 11: ITB cleaning - Residual toner on the ITB is transferred onto the drum.
Page 46: Transfer Block
Chapter 2 Blade Photosensitive drum Developing Stirrer cylinder DC bias DC bias F-2-17 Step 3: Auxiliary development In this step, CPU applies DC bias onto the toner that was not charged by frictional electrification. Here, the toner becomes uniformed negative potential. The printer charges the uncharged toner by applying DC bias onto the blade inside the toner cartridge.
Page 47: Fixing Block
Chapter 2 T oner Photosensitive drum DC bias Primary transfer roller F-2-19 Step 6: Secondary transfer The toner on the ITB is transferred onto paper in this step. A DC positive bias is applied to the secondary transfer roller to charge the back side of a fed paper. This allows the toner on the ITB to transfer onto paper positively. At the completion of secondary transfer, a DC negative bias is applied to the secondary transfer roller to avoid soiling the back of paper with the toner on the ITB.
Page 48: Itb Cleaning Block
Chapter 2 The machine uses an on-demand method, which requires a low thermal capacity. The method enables the machine to start up quickly and its heater to use little power while the machine is in a standby state. The machine may therefore be characterized by a short wait time and low energy consumption. The machine applies a positive DC bias to its pressure roller for the purpose of reinforcing the retention of toner on print paper, consequently preventing stray toner.
Page 49 Chapter 2 a DC positive bias onto the ITB and a DC negative bias onto the drum, to return the residual toner to the drum. Drum cartridge Screw Waste toner transport plate DC bias Screw (negative) Photosensitive drum Residual toner Stirrer Waste toner case...
Page 50: Driving And Controlling The High-Voltage System
Chapter 2 2.3.2 Driving and Controlling the High-Voltage System 2.3.2.1 Outline 0011-6381 In this circuit, biases are applied to the primary charging roller, developing cylinder, primary transfer roller, secondary transfer roller, auxiliary ITB cleaning roller, ITB cleaning roller, and fixing film. The CPU (IC101) in the DCNT Board controls the high-voltage power supply circuit and the sub high-voltage power supply circuit through the ASIC (IC102) to generate the biases.
Page 51: Secondary Transfer Bias Generation
Chapter 2 In full-color printing, as four toner layers in each colors are piled up on the ITB in primary transfer, the holding force of toner weakens as the transfer process progresses for the 1st color, 2nd color... Therefore, after transferring the first color, the primary transfer DC (positive) bias is increased for the toner in the rest of the colors to gain the holding force of the toner.
Page 52: Image Density Calibration (D-Max) Control
Chapter 2 2.3.3.2 Image Density Calibration (D-max) Control 0008-1704 This control is performed to stabilize the image density of the printer engine. The DCNT Board forms density patterns in each color on the ITB as varying the developing bias when specified conditions are met. Then the DCNT Board measures the density of the patterns with the density sensor and controls the developing bias to obtain a proper density based on the measured density.
Page 53: Developing Rotary Engaging Control
Chapter 2 DCNT Board Developing rotary/ toner level detection circuit Developing rotary home position sensor Developing rotary PS51 SL93 stopper solenoid Home position flag (Y cartridge flag) Photosensitive Bk cartridge flag drum M cartridge flag C cartridge flag Y cartridge flag PS51 PS51 Y cartridge flag...
Page 54: Developing Rotary Position Detection
Chapter 2 Developing rotary Drive gear Photosensitive drum Engaging motor (PM704) Rotary engaging cam Pressure plate Rotary engaging sensor Engaging detection flag <When the developing rotary is at disengaging position> Developing cylinder Photosensitive drum Engaging cam Pressure plate <When rotary is disengaging> <When rotary is engaging>...
Page 55: Toner Cartridge
Chapter 2 2.3.5 Toner Cartridge 2.3.5.1 Outline 0007-4983 The toner cartridge has a function of forming a visible image on the drum with toner. There are four toner cartridges in Y, M, C, and Bk, which are the same in structure. The following indicates the configuration of the cartridges and loads.
Page 56: Cartridge Presence Detection
Chapter 2 A mechanism used in this control is also used in a developing rotary engaging operation. The developing rotary position detection is also performed by the DCNT Board monitoring the rotary engaging sensor (PS712). Developing rotary Drive gear Photosensitive Memory tag drum Memory tag...
Page 57: Drum Cartridge
Chapter 2 Light guide Light Toner cartridge emitter Light receiver Developing rotary/ toner level detection circuit DCNT Board Light Light emitter emitter Toner Stirrer Stirrer Light Light receiver receiver <High toner level> <Low toner level> F-2-35 Note 1. In full-color printing, the detection is performed for the cartridges in each color. In monochrome printing, it is performed just for the Bk cartridge. Note 2.
Page 58: Cleaning Roller Engaging Control
Chapter 2 DCNT Board Waste toner detection circuit ITB feed roller Memory tag contact Main motor Waste toner screw Memory tag Waste toner transport plate Primary Waste toner screw charging roller Waste toner sensor (light emitter) Photosensitive Primary drum transfer Stirrer roller Roller...
Page 59: Memory Tag
Chapter 2 DCNT Board Main motor Roller engaging clutch Engaging drive gear Roller engaging sensor PS714 ITB cleaning roller Auxiliary ITB cleaning roller Engaging cam Bushing Bushing ITB cleaning roller Auxiliary Engaging cam ITB cleaning roller <Disengaging> <Engaging> F-2-37 2.3.6.3 Memory Tag 0008-1712 The memory tag is a non-volatile memory built into the drum cartridge.
Page 60: Detecting The Itb Home Position
Chapter 2 DCNT Board Memory tag contact Memory tag Drum cartridge F-2-38 2.3.6.4 Detecting the ITB Home Position 0008-1713 The machine checks the ITB home position to ensure the correct image write start position using the ITB home position sensor (PS71), which checks the position with reference to the home position detection faces (4 light-blocking faces) found on the edge of the ITB belt as follows: 1) When it receives the print command, the DCNT Board starts to rotate the ITB belt.
Page 61: Drum Cartridge Presence Detection
Chapter 2 SCNT Board DCNT Board Interrupting areas ITB home position sensor (PS71) Drum cartridge Interrupting areas (Print command) TOPSNS /TOP VIDEO signals (Mono-color print) (Full-color print) F-2-39 2.3.6.5 Drum Cartridge Presence Detection 0008-1714 This detection is utilized to detect the presence of the drum cartridge. When the power is turned on or the top cover is closed, the DCNT Board determines the presence or absence of the cartridge by monitoring the following two items: 1) PS71 (ITB HOME POSITION DETECTION signal) outputs "L"...
Page 62: Checking The Life Of The Drum Cartridge
Chapter 2 DCNT Board SCNT Board Interrupting areas ITB home position sensor (PS71) H.V.T Drum cartridge Interrupting areas Secondary transfer roller F-2-40 2.3.6.6 Checking the Life of the Drum Cartridge 0008-1715 a. Outline The machine uses the following mechanism to check the life of the drum cartridge. When the power is turned on, the upper cover is closed, or a print job is over, the DCNT Board checks on the following 2 items, and will assume that the cartridge has reached the end of its life if any of them reaches a specific value: - life of photosensitive drum (hours of use)
Page 63: Secondary Transfer Mechanism
Chapter 2 Light guide Waste toner detection circuit Light emitter Light receiver DCNT Board Waste toner transport plate Light emitter Stirrer Light receiver <High waste toner level> <Low waste toner level> 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.
Page 64: Secondary Transfer Roller Engaging Control
Chapter 2 DCNT Board Main motor PS714 Roller engaging clutch Roller engaging Engaging lever Secondary transfer rollers F-2-42 2.3.7.2 Secondary Transfer Roller Engaging Control 0008-1717 This control is utilized to perform an engaging/disengaging operation between the secondary transfer roller and ITB in order to transfer the toner on the ITB to paper. The operations of this control are described in the following: 1) At printing, the DCNT Board checks that the secondary transfer roller is at its home position (Note:1) in secondary transfer roller home position detection.
Page 65: Secondary Roller Position Detection
Chapter 2 DCNT Board Main motor Roller engaging clutch Roller engaging detection gear Roller engaging sensor PS714 Engaging cam Secondary transfer roller Engaging lever Engaging cam Secondary Engaging lever transfer roller <Disengaging> <Engaging> F-2-43 2.3.7.3 Secondary Roller Position Detection 0008-1719 This printer has a function of detecting the engaging position of the secondary transfer roller between the roller and ITB.
Page 66: Pickup And Feed System
Chapter 2 DCNT Board H.V.T Main motor Roller engaging clutch Roller engaging detection gear Roller engaging sensor PS714 Secondary Engaging cam transfer roller Engaging lever F-2-44 2.4 Pickup and Feed System 2.4.1 Overview/Configuration 2.4.1.1 Overview 0007-4988 The pickup/feed system serves to pick up and move paper, and it consists of various feed rollers. The machine possesses 2 inlet slots for paper (i.e., multifeeder tray and paper feeder) and 2 outlet slots (face-up tray and face-down tray).
Page 67: Pickup/Feeding Assembly
Chapter 2 DCNT Board Facedown tray delivery roller Multi-purpose tray pick-up Engaging Registration roller shutter Separation Lifting plate SL92 Pressure roller Secondary Feed transfer belt roller Registration roller F-2-45 PS1: Fixing delivery paper sensor PS711: Registration paper sensor PS718: Multi-purpose tray paper sensor PS720: Front fixing paper detection sensor DCM701: Main motor PM702: Fixing motor...
Page 68: Other Control
Chapter 2 3. controls the speed at which paper is moved to suit the temperature inside the machine 2.4.2 Other Control 2.4.2.1 Skew Correction Function 0008-1720 This function is utilized to correct the skew of the paper to be fed, using the registration shutter method. The operations of this function are discussed below.
Page 69: Detection Jams
Chapter 2 TH3 temperature Td=50 Tu=45 Print time (minutes) F-2-48 2.4.3 Detection Jams 2.4.3.1 Jam Detection Outline 2.4.3.1.1 Outline 0007-4990 To detect the presence of paper and whether paper has been correctly fed, the following paper sensors are provided: - Registration sensor (PS711) - Fixing delivery paper sensor (PS1) - Fixing front paper sensor (PS720) - paper feed sensor (PS717)
Page 70: Cassette Pickup Unit
Chapter 2 2.4.4 Cassette Pickup Unit 2.4.4.1 Pickup from the Cassette 0008-2078 When the cassette is used as the source of paper, the machine operates as follows to make sure that a single sheet of paper is picked from the cassette: 1.
Page 71: Various Control Mechanisms
Chapter 2 The controls and functions in the fixing control circuit are described next. 2.5.2 Various Control Mechanisms 2.5.2.1 Controlling the Temperature of the Fixing Unit 2.5.2.1.1 Heater Temperature Control 0011-6408 This function detects an abnormal temperature rise of the heater and shuts the heater off. This printer utilizes three protective functions performed by the following parts, to prevent an abnormal temperature rise of the heater: Fixing unit Power supply unit...
Page 72: Fixing Unit Failure Detection
Chapter 2 1. Sets the FIXING HEATER DRIVE (FSRD) signal "L" through the ASIC and shuts off the heater. 2. Sets the RELAY DRIVE (RLD) signal "L" through the ASIC. 3. Sets the RELAY DRIVE (RLD-) signal "L" through the fixing heater safety circuit. 4.
Page 73: Dc Controller (Dcnt)
Chapter 2 2.6.2 DC Controller (DCNT) 2.6.2.1 Outline 0008-1725 The DCNT Board, which is controlled by the CPU in it, controls operation sequences for the printer. When the power is turned on and DC power is supplied from the power supply unit to the DCNT Board PCB, the CPU starts to control the operations of the printer. Then, when the printer enters the standby status, the CPU drives loads such as the laser diodes, motors, solenoids, etc.
Page 74: Controlling The Motors And Fans
Chapter 2 e. Developing rotary motor driver IC (IC103) It controls the developing rotary motor. f. Toner cartridge motor driver IC (IC104) It controls the toner cartridge motor. g. Fixing motor driver IC (IC106) It controls the fixing motor. h. Engaging motor driver IC (IC107) It controls the engaging motor.
Page 75: Developing Rotary Motor Control
Chapter 2 DCNT Board Main motor +24VB J110-8 J701-1 (IC101) +24VB DCM701 /MAIMACC ASIC /MAIMDEC (IC102) +3.3V MAIMFG 24VGND F-2-53 The operations of the main motor are discussed next. The CPU in the DCNT Board rotates the motor by setting the /MAIMACC signal "L" through the ASIC. The CPU monitors the MAIN MOTOR SPEED DETECTION (MAIMFG) signal.
Page 76: Cooling Fan
Chapter 2 2) When the pulse count for ENCODER DETECTION signal does not fit in the prescribed range, (within -/+ 200 of a targeted pulse count memorized by CPU )after a period of time from the start of the drive when the developing rotary motor becomes Ready. The encoder used in this printer consists of a disk, reflective sensor, and detection unit.
Page 77: System Controller (Scnt)
0008-2319 Canon Advanced Raster Printing System (hereafter (CARPS) refers to a system of processing data in which printing speed is reduced and operation is made easier for more user-friendly printing in a Microsoft Windows environment. In CARPS, the following takes place so as to generate output as fast and as easily as possible:...
Page 78 - It allows making selections to set up a printing environment using dialog boxes on the host computer. Host computer GDI data from application Converts data into GDI- compatible resource data Canon Advanced Raster Printing System Analyzes resource data, Displays on screen and develops it into print data...
Page 79: Chapter 3 Disassembly And Assembly
Chapter 3 DISASSEMBLY AND ASSEMBLY...
Page 81 Contents Contents 3.1 Cartridge Removal at Trouble Eruption Cartridge Removal at Trouble Eruption ............3-1 3.1.1 Cartridge Removal at Trouble Eruption ............................3-1 3.1.2 Toner cartridge removal................................3-1 3.1.3 Drum cartridge removal ................................3-2 3.2 EXTERNAL AND CONTROLS SYSTEM ........................3-2 3.2.1 Front Cover ....................................3-2 3.2.1.1 Removing the Cassettes ....................................3-2 3.2.1.2 Removing the Rear Cover ....................................3-2 3.2.1.3 Removing the Right Cover (with the reader assembly intact) ........................3-2...
Page 82 Contents 3.2.9.10 Removing the Shield Plate..................................3-17 3.2.9.11 Removing the Registration Clutch................................3-17 3.2.9.12 Removing the Main Drive Assembly ................................. 3-17 3.2.10 Operation Panel Unit................................3-18 3.2.10.1 Removing the Rear Cover................................... 3-18 3.2.10.2 Removing the Scanner Unit ..................................3-18 3.2.10.3 Removing the operation Panel ..................................3-18 3.2.11 SCNT Board.....................................
Page 83 Contents 3.2.17.7 Removing the Face-Down Cover................................3-36 3.2.17.8 Removing the Top Cover ....................................3-36 3.2.17.9 Removing the Right Frame ..................................3-37 3.2.17.10 Removing the Left Frame ..................................3-37 3.2.17.11 Removing the Cassette Feeder ..................................3-37 3.2.17.12 Removing the Shield Plate ..................................3-37 3.2.17.13 Removing the Fan Duct ....................................3-37 3.2.17.14 Removing the Lower Case Assembly ...............................3-38 3.2.17.15 Removing the Sub High-Voltage Power Supply PCB Unit........................3-38 3.2.17.16 Removing the High-Voltage Power Supply PCB .............................3-38...
Page 84 Contents 3.3.3.3 Removing the SCNT Board Unit.................................. 3-54 3.3.3.4 Removing the ADF Unit....................................3-54 3.3.3.5 Removing the operation Panel ..................................3-54 3.3.3.6 Removing the Scanner Cover Unit ................................3-55 3.3.4 CCD Unit ....................................3-55 3.3.4.1 Removing the Rear Cover..................................... 3-55 3.3.4.2 Removing the Scanner Unit ..................................
Page 85: Laser Exposure System
Contents 3.3.13.3 Removing the SCNT Board Unit ................................3-72 3.3.13.4 Removing the Speaker ....................................3-72 3.4 LASER EXPOSURE SYSTEM...........................3-72 3.4.1 Laser/Scanner Unit..................................3-72 3.4.1.1 Removing the Rear Cover .....................................3-72 3.4.1.2 Removing the Reader Assembly ...................................3-73 3.4.1.3 Removing the Right Cover....................................3-74 3.4.1.4 Removing the Left Cover....................................3-74 3.4.1.5 Removing the Power Supply Assembly................................3-74 3.4.1.6 Removing the Face-Down Cover..................................3-74 3.4.1.7 Removing the Top Cover ....................................3-74...
Page 86 Contents 3.5.4.7 Removing the Top Cover....................................3-92 3.5.4.8 Removing the Left Frame ..................................... 3-93 3.5.4.9 Removing the Shift Motor .................................... 3-93 3.5.5 Developing Rotary Motor ................................3-93 3.5.5.1 Removing the Rear Cover..................................... 3-93 3.5.5.2 Removing the Reader Assembly................................... 3-94 3.5.5.3 Removing the Right Cover ................................... 3-95 3.5.5.4 Removing the Left Cover .....................................
Page 87: Pickup And Feeding System
Contents 3.5.10.9 Removing the Registration Clutch ................................3-113 3.5.10.10 Removing the Main Drive Assembly..............................3-113 3.5.10.11 Removing the Waste Toner Detection PCB............................3-114 3.5.11 Developing Rotary/Toner Level Detection PCB ........................3-114 3.5.11.1 Removing the Rear Cover ..................................3-114 3.5.11.2 Removing the Reader Assembly ................................3-114 3.5.11.3 Removing the Right Cover..................................3-115 3.5.11.4 Removing the Left Cover..................................3-115 3.5.11.5 Removing the Power Supply Assembly..............................3-116...
Page 88 Contents 3.6.3.9 Removing the Right Frame..................................3-133 3.6.3.10 Removing the Left Frame ..................................3-133 3.6.3.11 Removing the Cassette Feeder.................................. 3-133 3.6.3.12 Removing the Cassette Feed Sensor ................................. 3-133 3.6.4 Cassette Pickup Solenoid................................. 3-134 3.6.4.1 Removing the Cassettes ....................................3-134 3.6.4.2 Removing the Rear Cover................................... 3-134 3.6.4.3 Removing the Reader Assembly.................................
Page 89: Fixing System
Contents 3.6.9.16 Removing the Registration Detection PCB...............................3-150 3.6.10 Main Motor .................................... 3-151 3.6.10.1 Removing the Rear Cover ..................................3-151 3.6.10.2 Removing the Reader Assembly ................................3-151 3.6.10.3 Removing the Right Cover..................................3-152 3.6.10.4 Removing the Left Cover..................................3-152 3.6.10.5 Removing the Power Supply Assembly..............................3-152 3.6.10.6 Removing the Face-Down Cover................................3-152 3.6.10.7 Removing the Top Cover ..................................3-153 3.6.10.8 Removing the Right Frame ..................................3-154...
Page 91: Cartridge Removal At Trouble Eruption Cartridge Removal At Trouble Eruption
Chapter 3 3.1 Cartridge Removal at Trouble Eruption Cartridge Removal at Trouble Eruption 3.1.1 Cartridge Removal at Trouble Eruption 0007-8336 If you removed the cartridge as you normally would in response to a fault in the machine, you could damage the machine. Be sure to observe the following removing the 2 types of cartridges (toner, drum) from he machine.
Page 92: Drum Cartridge Removal
Chapter 3 F-3-5 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-3 5) Repeat the steps 3) and 4) to remove the toner cartridges for each color. 3.1.3 Drum cartridge removal 0007-8338 1) Open the top cover unit and remove the drum cartridge. When removing the drum cartridge with the top cover unit detached, be F-3-6 sure to pull up the drive release lever [1].
Page 93: Removing The Left Cover (With The Reader Assembly Intact)
Chapter 3 F-3-11 3.2.1.4 Removing the Left Cover (with the reader assembly intact) 0007-6984 F-3-8 1) Disconnect the plug [1], and free the cable [2] of the reader assembly from the guide. 2) Open the reader assembly [1] and the top cover [2]. F-3-9 3) Remove the 2 screws [1] from the side;...
Page 94: Removing The Lower
Chapter 3 F-3-17 F-3-14 2) Slide the front cover [1] to the left to detach. F-3-18 3.2.2 Rear Cover F-3-15 3.2.2.1 Removing the Rear Cover 3.2.1.5 Removing the Lower Front Cover 0007-6974 1) Disconnect the cable [1] of the power supply assembly. 0007-6986 1) Free the claw [1] using a flat-blade screwdriver;...
Page 95: Top Cover
Chapter 3 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-3-21 3.2.3 Top Cover 3.2.3.1 Removing the Cassettes 0007-6972 1) Hold the grip, and take out the cassette. 3.2.3.2 Removing the Rear Cover 0007-6989 F-3-25...
Page 96: Removing The Right Cover
Chapter 3 F-3-28 5) Remove the 6 screws [1], and lift the reader unit to detach. F-3-32 F-3-29 F-3-33 3.2.3.4 Removing the Right Cover 3.2.3.6 Removing the Power Supply Assembly 0007-7013 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach 0007-7037 1) Remove the 6 screws [1], and detach the power supply assembly [2].
Page 97: Removing The Top Cover
Chapter 3 3.2.3.8 Removing the Top Cover 0007-7041 1) Remove the claw [1], and detach the ring gear [2]. 2) Free the link lever [3] from the shaft [4]. F-3-36 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4].
Page 98: Right Cover
Chapter 3 F-3-44 3.2.4.3 Removing the Right Cover (with the reader assembly intact) 0007-6978 1) Free the cable [1] of the reader assembly. F-3-41 3.2.4 Right Cover 3.2.4.1 Removing the Cassettes 0007-6969 1) Hold the grip, and take out the cassette. 3.2.4.2 Removing the Rear Cover 0007-6975 1) Disconnect the cable [1] of the power supply assembly.
Page 99: Left Cover
Chapter 3 F-3-50 F-3-47 4) Close the reader assembly; then, detach the rear cover[1]. MEMO It is difficult to release three claws [2]. If you release the lowest one first, the second lowest, and then the top, it becomes easy. F-3-51 3.2.5.3 Removing the Left Cover (with the reader assembly intact)
Page 100: Upper Right Cover
Chapter 3 F-3-53 3) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach F-3-56 the right cover [3]. 3) Open the reader assembly [4], and lift to free the 2 claws [5]. MEMO It is difficult to release three claws [2].
Page 101: Removing The Scanner Unit
Chapter 3 When closing the reader assembly, be sure to push in the arm [1] first. 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 detach. F-3-60 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 102: Removing The Reader Assembly
Chapter 3 When closing the reader assembly, be sure to push in the arm [1] first. F-3-66 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-70 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 103: Removing The Scanner Unit
Chapter 3 F-3-73 3.2.7.3 Removing the Scanner Unit 0008-9848 1) Remove the 2 screws [1] from the back; then, shift the scanner unit [2] to F-3-76 the back, and lift it to detach. 3.2.8.2 Removing the Face-Up Cover 0011-7553 1) Turn the fixing lever [1] of the fixing assembly 90 deg in the direction of the arrow.
Page 104: Removing The Reader Assembly
Chapter 3 F-3-79 4) Close the reader assembly; then, detach the rear cover[1]. 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 the 2 cables [2] connected to the reader assembly.
Page 105: Removing The Right Cover
Chapter 3 F-3-89 F-3-85 3.2.9.5 Removing the Power Supply Assembly 3.2.9.3 Removing the Right Cover 0007-8652 1) Remove the 6 screws [1], and detach the power supply assembly [2]. 0007-8591 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3].
Page 106 Chapter 3 F-3-92 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. F-3-94 Enlarged View of the Paper Retainer F-3-95 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).
Page 107: Removing The Right Frame
Chapter 3 3.2.9.11 Removing the Registration Clutch 0007-8828 1) Disconnect the connector [1], and open the harness band [2]. 2) Remove the E-ring [3], and detach the registration clutch [4]. F-3-101 F-3-97 The connector on the registration clutch side is designed to prevent discon- 3.2.9.8 Removing the Right Frame nection.
Page 108: Operation Panel Unit
Chapter 3 3) Disconnect the 3 connectors [1], and remove the 8 screws [2]; then, detach the main drive assembly [3]. 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], and detach the cable guide [3].
Page 109: Scnt Board
Chapter 3 F-3-116 F-3-112 3.2.11.2 Removing the Scanner Unit 2) Disconnect the 2 flat cables [1], and remove the 2 fastons [2]; then, detach the operation panel [3]. 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], and detach the cable guide [3].
Page 110: Removing The Scnt Unit
Chapter 3 F-3-124 4) Disconnect the flat cable [1] and the connector [2]. F-3-120 2) Open the board unit; then, disconnect the 6 connectors [1] and the 3 flat cables [2]. F-3-125 5) Remove the screw [1], and disconnect the connector [2]. F-3-121 3.2.11.4 Removing the SCNT Unit 0012-7165...
Page 111: Dcnt Board
Chapter 3 F-3-132 Never remove the SCNT board. F-3-129 9) Disconnect the connector [1] and the cable [2]. 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 cover [2], and remove the 4 screws [3] of the rear cover. F-3-130 10) Disconnect the connector, remove the screw [2], and detach the fan [3] together with cover.
Page 112: Removing The Reader Assembly
Chapter 3 F-3-139 4) Open the harness band [1], and disconnect the 2 cables connected to the F-3-136 reader assembly. 3.2.12.2 Removing the Reader Assembly 0007-8459 1) Open the reader assembly, and remove the left and right E-rings [1]; then, pull out the pin [2].
Page 113: Removing The Left Cover
Chapter 3 F-3-143 3.2.12.4 Removing the Left Cover 0007-7957 1) Remove the 2 screws [1] from the side; then, remove the 3 claws [2] to detach the right cover [3]. 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.
Page 114: Removing The Right Frame
Chapter 3 F-3-152 If you are fitting the drum cartridge in the machine with 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 out the coupling [2], causing the coupling to interface with the drum car- tridge and to suffer damage.
Page 115: Removing The Dcnt Board
Chapter 3 F-3-155 3.2.12.10 Removing the DCNT Board 0007-7963 1) Disconnect the connector [1] connected to the DC controller, and remove the 4 screws [2]; then, detach the DCNT board. 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...
Page 116: Removing The Modular Board Cover
Chapter 3 F-3-166 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-162 3.2.13.3 Removing the Modular Board Cover 0007-8070 1) Remove the 2 screws [1], and detach the modular board cover [2]. F-3-167 F-3-163 4) Close the reader assembly;...
Page 117: Removing The Modular Pcb
Chapter 3 F-3-170 5) Remove the 2 screws [1] from the back; then, shift the scanner unit [2] to F-3-174 the back, and lift it to detach. 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-171 3.2.14.3 Removing the Modular Board Cover F-3-175...
Page 118: Removing The Power Supply Assembly
Chapter 3 When closing the reader assembly, be sure to push in the arm [1] first. F-3-181 3.2.15.3 Removing the Power Supply Assembly 0007-7022 1) Remove the 6 screws [1], and detach the power supply assembly [2]. F-3-178 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 119: Print Power Supply Pcb
Chapter 3 3.2.16 Print Power Supply PCB 3.2.16.1 Removing the Fixing Assembly 0011-7861 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.
Page 120: Removing The Right Cover
Chapter 3 F-3-191 4) Open the harness band [1], and disconnect the 2 cables connected to the reader assembly. F-3-195 3.2.16.5 Removing the Left Cover 0007-8528 1) Remove the 2 screws [1] from the side; then, remove the 3 claws [2] to detach the right cover [3].
Page 121: Removing The Face-Down Cover
Chapter 3 F-3-198 3.2.16.7 Removing the Face-Down Cover 0007-8534 1) Remove the 2 screws [1], and slide the face-down cover [2] in downward direction to detach. 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 sub cover, while making sure that the paper retainer [3] is not blocking the feed path.
Page 122: Removing The Right Frame
Chapter 3 F-3-207 F-3-204 3.2.16.11 Removing the Cassette Feeder 0007-8539 1) Lift the machine, and detach the cassette feeder [1]. If you are fitting the drum cartridge in the machine with 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).
Page 123: Removing The Lower Case Assembly
Chapter 3 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 the Printer Power Supply PCB 0007-8543 1) Remove the 3 screws [1], and disconnect the 4 connectors [2];...
Page 124: Removing The Rear Cover
Chapter 3 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-3-216 3.2.17.2 Removing the Rear Cover 0007-7935 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.
Page 125: Removing The Right Cover
Chapter 3 F-3-222 4) Open the harness band [1], and disconnect the 2 cables connected to the reader assembly. F-3-226 3.2.17.5 Removing the Left Cover 0007-7938 1) Remove the 2 screws [1] from the side; then, remove the 3 claws [2] to detach the right cover [3].
Page 126: Removing The Face-Down Cover
Chapter 3 F-3-229 3.2.17.7 Removing the Face-Down Cover 0007-7940 1) Remove the 2 screws [1], and slide the face-down cover [2] in downward direction to detach. 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 sub cover, while making sure that the paper retainer [3] is not blocking the feed path.
Page 127: Removing The Right Frame
Chapter 3 F-3-238 F-3-235 3.2.17.11 Removing the Cassette Feeder 0007-7948 1) Lift the machine, and detach the cassette feeder [1]. If you are fitting the drum cartridge in the machine with 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).
Page 128: Removing The Lower Case Assembly
Chapter 3 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. 3.2.17.15 Removing the Sub High-Voltage Power Supply PCB Unit 0007-7952 1) Remove 2 screws [1], disconnect the connector [2], remove the faston [3],...
Page 129: Removing The Rear Cover
Chapter 3 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-3-247 3.2.18.2 Removing the Rear Cover 0008-2718 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.
Page 130: Removing The Right Cover
Chapter 3 F-3-253 4) Open the harness band [1], and disconnect the 2 cables connected to the reader assembly. F-3-257 3.2.18.5 Removing the Left Cover 0008-2725 1) Remove the 2 screws [1] from the side; then, remove the 3 claws [2] to detach the right cover [3].
Page 131: Removing The Face-Down Cover
Chapter 3 F-3-260 3.2.18.7 Removing the Face-Down Cover 0008-2729 1) Remove the 2 screws [1], and slide the face-down cover [2] in downward direction to detach. 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 sub cover, while making sure that the paper retainer [3] is not blocking the feed path.
Page 132: Removing The Right Frame
Chapter 3 F-3-269 F-3-266 3.2.18.11 Removing the Cassette Feeder 0008-2734 1) Lift the machine, and detach the cassette feeder [1]. If you are fitting the drum cartridge in the machine with 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).
Page 133: Removing The Lower Case Assembly
Chapter 3 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. 3.2.18.15 Removing the Sub High-voltage Power Supply Board 0008-2740 1) Remove the connector [1] and the faston [2], and detach the 4 claws [3];...
Page 134: Removing The Reader Assembly
Chapter 3 F-3-282 4) Open the harness band [1], and disconnect the 2 cables connected to the F-3-279 reader assembly. 3.2.19.2 Removing the Reader Assembly 0007-8578 1) Open the reader assembly, and remove the left and right E-rings [1]; then, pull out the pin [2].
Page 135: Removing The Left Cover
Chapter 3 F-3-286 3.2.19.4 Removing the Left Cover 0007-8629 1) Remove the 2 screws [1] from the side; then, remove the 3 claws [2] to detach the right cover [3]. 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.
Page 136: Removing The Right Frame
Chapter 3 F-3-295 If you are fitting the drum cartridge in the machine with 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 out the coupling [2], causing the coupling to interface with the drum car- tridge and to suffer damage.
Page 137: Removing The Machine Inside Temperature Thermistor
Chapter 3 F-3-298 3.2.19.10 Removing the Machine Inside Temperature Thermistor 0007-8934 1) Disconnect the connector [1], and remove the screw [2]; then, detach the machine inside temperature thermistor [3]. F-3-301 4) Close the reader assembly; then, detach the rear cover[1]. F-3-302 3.2.20.2 Removing the Reader Assembly 0007-8577...
Page 138: Removing The Right Cover
Chapter 3 F-3-307 3.2.20.3 Removing the Right Cover 0007-8600 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3]. F-3-304 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 139: Removing The Power Supply Assembly
Chapter 3 F-3-314 F-3-311 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. 3.2.20.5 Removing the Power Supply Assembly 0007-8654 1) Remove the 6 screws [1], and detach the power supply assembly [2]. F-3-312 3.2.20.6 Removing the Face-Down Cover 0007-8658...
Page 140: Removing The Left Frame
Chapter 3 F-3-319 3.2.20.8 Removing the Left Frame 0007-8809 1) Remove the 4 screws [1], and detach the left frame [2]. F-3-316 Enlarged View of the Paper Retainer F-3-317 When attaching the top cover, be sure to fit the link lever [2] while keeping F-3-320 the drive release lever [1] in up position (i.e., with drive disengaged).
Page 141: Document Feed/Exposure System
Chapter 3 3.3.1.2 Removing the Scanner Unit 0007-8054 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-3-322 3.3 Document Feed/Exposure System F-3-326 4) Open the harness band [1], and free the 2 cables [2] connected to the 3.3.1 Scanner Unit...
Page 142: Removing The Scanner Unit
Chapter 3 F-3-334 3.3.2.3 Removing the SCNT Board Unit F-3-330 4) Close the reader assembly; then, detach the rear cover[1]. 0007-8073 1) Remove the 8 screws [1] from behind the scanner unit, and shift up the SCNT board unit [2]. F-3-331 F-3-335 3.3.2.2 Removing the Scanner Unit...
Page 143: Points To Note When Mounting The Adf Unit
Chapter 3 F-3-341 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-338 4) Open the ADF unit [1] as shown; then, disengage it starting with the rear and then the front. F-3-342 4) Close the reader assembly; then, detach the rear cover[1]. F-3-339 3.3.2.5 Points to Note When Mounting the ADF Unit 0009-8277...
Page 144: Removing The Scnt Board Unit
Chapter 3 F-3-345 F-3-349 5) Remove the 2 screws [1] from the back; then, shift the scanner unit [2] to 3) Remove the ferrite core [1] from behind the scanner unit; then, free the the back, and lift it to detach. harness from the tape [2].
Page 145: Removing The Scanner Cover Unit
Chapter 3 the operation panel [3]. F-3-353 3.3.3.6 Removing the Scanner Cover Unit 0007-8081 1) Remove the copyboard cover. 2) Remove the 2 screws [1]. 3) Remove the 6 claws [2], and detach the scanner cover unit [3]. 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...
Page 146: Removing The Ncu Board
Chapter 3 F-3-364 F-3-360 3.3.4.5 Removing the ADF Unit 3.3.4.3 Removing the NCU Board 0007-8098 1) Open the ADF unit [1], and detach the stopper [2]. 2) Remove the 3 claws [3], and detach the ADF front cover [4]. 0007-8097 1) Remove the 4 screws [1], and open the NCU unit [2].
Page 147: Removing The Operation Panel
Chapter 3 3.3.4.6 Removing the operation Panel 0007-8099 1) Remove the 2 screws [1], and free the 2 claws [2] (left/right) to open the operation panel [3]. F-3-371 F-3-368 3.3.4.9 Removing the CCD Unit 2) Disconnect the 2 flat cables [1], and remove the 2 fastons [2]; then, detach the operation panel [3].
Page 148: Removing The Scanner Unit
Chapter 3 F-3-377 5) Remove the 2 screws [1] from the back; then, shift the scanner unit [2] to F-3-373 the back, and lift it to detach. 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-378 3.3.5.3 Removing the SCNT Board Unit F-3-374...
Page 149: Points To Note When Mounting The Adf Unit
Chapter 3 3.3.5.6 Removing the Document Pickup Roller Unit 0009-9016 1) Remove the following claws in the order indicated, and detach the ADF rear cover [3]: claw [1], claw [2], claw [3]. F-3-381 3) Remove the ferrite core [1] from behind the scanner unit; then, free the harness from the tape [2].
Page 150: Removing The Separation Guide Unit
Chapter 3 F-3-389 6) Remove the 2 gears [1] [3]; then, detach the 2 bearings [2] [4], and detach the pickup roller unit [5]. F-3-393 [1] [2] 4) Close the reader assembly; then, detach the rear cover[1]. F-3-390 3.3.5.7 Removing the Separation guide unit 0009-8765 1) Remove the Separation guide unit [1].
Page 151: Removing The Scnt Board Unit
Chapter 3 F-3-397 F-3-401 3.3.6.3 Removing the SCNT Board Unit 4) Open the ADF unit [1] as shown; then, disengage it starting with the rear and then the front. 0009-9002 1) Remove the 8 screws [1] from behind the scanner unit, and shift up the SCNT board unit [2].
Page 152 Chapter 3 F-3-408 6) Remove the 2 screws [1], and detach the ADF inside cover [2]. F-3-404 2) Remove the 2 screws [1], and detach the harness guide [2] and the Document feed motor unit [3]. F-3-409 7) Remove the claw [1], and detach the gear [2] and the bearing [3]. F-3-405 3) Remove the spring [1] and the screw [2], and detach the arm [3].
Page 153: Pickup Roller Unit
Chapter 3 F-3-415 3.3.7.2 Removing 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-3-412 3.3.7 Pickup Roller Unit 3.3.7.1 Removing the Rear Cover 0009-9006...
Page 154: Removing The Adf Unit
Chapter 3 F-3-419 2) Open the SCNT board unit; then, disconnect the 6 connectors [1] and the 3 flat cables [2]. 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, a break in the line can occur.
Page 155: Reader Unit
Chapter 3 [1] [2] F-3-430 3.3.8 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-3-426 3) Remove the spring [1] and the screw [2], and detach the arm [3].
Page 156: Flatbed Motor Unit
Chapter 3 F-3-437 5) Remove the 6 screws [1], and lift the reader unit to detach. F-3-434 When closing the reader assembly, be sure to push in the arm [1] first. F-3-438 3.3.9 Flatbed Motor Unit 3.3.9.1 Removing the Rear Cover 0007-8082 1) Disconnect the cable [1] of the power supply assembly.
Page 157: Removing The Scanner Unit
Chapter 3 F-3-441 F-3-445 2) Open the SCNT board unit; then, disconnect the 6 connectors [1] and the 3.3.9.2 Removing the Scanner Unit 3 flat cables [2]. 0007-8084 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].
Page 158: Removing The Operation Panel
Chapter 3 F-3-449 3.3.9.5 Removing the operation Panel 0007-8087 F-3-452 1) Remove the 2 screws [1], and free the 2 claws [2] (left/right) to open the operation panel [3]. 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] while paying attention to the drive belt [4] of the CCD unit.
Page 159: Removing The Scanner Unit
Chapter 3 F-3-459 3.3.10.3 Removing the SCNT Board Unit F-3-455 4) Close the reader assembly; then, detach the rear cover[1]. 0009-9013 1) Remove the 8 screws [1] from behind the scanner unit, and shift up the SCNT board unit [2]. F-3-456 F-3-460 3.3.10.2 Removing the Scanner Unit...
Page 160: Removing The Document Feed Motor
Chapter 3 F-3-466 F-3-463 2) Remove the 2 screws [1], and detach the harness guide [2] and the 4) Open the ADF unit [1] as shown; then, disengage it starting with the rear Document feed motor unit [3]. and then the front. F-3-467 3) Remove the gear [1] and the 2 screws [2];...
Page 161: Des Sensor
Chapter 3 F-3-474 F-3-470 4) Disconnect the connector [1], and remove the 4 claws [4]; then, detach the 3) Remove the 4 claws [1], and disconnect the connector [2]; then, detach the ADF feed sensor [3]. ADF paper sensor [3]. F-3-475 3.3.13 Speaker F-3-471...
Page 162: Removing The Speaker
Chapter 3 F-3-478 F-3-482 2) Open the SCNT board unit; then, disconnect the 6 connectors [1] and the 3.3.13.2 Removing the Scanner Unit 3 flat cables [2]. 0007-8938 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].
Page 163: Removing The Reader Assembly
Chapter 3 When closing the reader assembly, be sure to push in the arm [1] first. F-3-485 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-489 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 164: Removing The Right Cover
Chapter 3 F-3-496 F-3-492 3.4.1.5 Removing the Power Supply Assembly 3.4.1.3 Removing the Right Cover 0007-7968 1) Remove the 6 screws [1], and detach the power supply assembly [2]. 0007-7966 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3].
Page 165 Chapter 3 F-3-499 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. F-3-501 Enlarged View of the Paper Retainer F-3-502 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).
Page 166: Removing The Laser Scanner Unit
Chapter 3 F-3-507 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-504 3.4.1.8 Removing the Laser Scanner Unit 0007-7972 1) Remove the face-down sub cover [1]. 2) Disconnect the 3 connectors [2]. F-3-508 4) Close the reader assembly; then, detach the rear cover[1]. F-3-505 3) Remove the 4 screws [1], and free the harness [3] from the harness guide [2];...
Page 167: Removing The Right Cover
Chapter 3 When closing the reader assembly, be sure to push in the arm [1] first. F-3-514 3.5.1.3 Removing the Right Cover 0007-8593 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3].
Page 168: Removing The Power Supply Assembly
Chapter 3 F-3-521 F-3-518 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. 3.5.1.5 Removing the Power Supply Assembly 0007-8637 1) Remove the 6 screws [1], and detach the power supply assembly [2]. F-3-519 3.5.1.6 Removing the Face-Down Cover 0007-8659...
Page 169: Removing The Rotary Drive Assembly
Chapter 3 F-3-526 3.5.1.8 Removing the Right Frame 0011-6595 1) Remove the 5 screws [1], and detach the right frame [2]. F-3-523 Enlarged View of the Paper Retainer F-3-524 F-3-527 When attaching the top cover, be sure to fit the link lever [2] while keeping 3.5.1.9 Removing the Shield Plate the drive release lever [1] in up position (i.e., with drive disengaged).
Page 170: Drum Cartridge Memory Tag Contact
Chapter 3 F-3-532 4) Close the reader assembly; then, detach the rear cover[1]. F-3-529 2) Disconnect the connector [1], and remove the 3 screws [2]; then, detach the rotary drive assembly [3]. F-3-533 3.5.2.2 Removing the Reader Assembly 0007-8584 1) Open the reader assembly, and remove the left and right E-rings [1]; then, pull out the pin [2].
Page 171: Removing The Right Cover
Chapter 3 F-3-538 3.5.2.3 Removing the Right Cover 0007-8608 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3]. F-3-535 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 172: Removing The Power Supply Assembly
Chapter 3 F-3-545 F-3-542 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. 3.5.2.5 Removing the Power Supply Assembly 0007-8638 1) Remove the 6 screws [1], and detach the power supply assembly [2]. F-3-543 3.5.2.6 Removing the Face-Down Cover 0007-8660...
Page 173: Removing The Inside Cover
Chapter 3 F-3-550 3.5.2.8 Removing the Right Frame 0011-6596 1) Remove the 5 screws [1], and detach the right frame [2]. F-3-547 Enlarged View of the Paper Retainer F-3-548 F-3-551 When attaching the top cover, be sure to fit the link lever [2] while keeping 3.5.2.9 Removing the Shield Plate the drive release lever [1] in up position (i.e., with drive disengaged).
Page 174: Removing The Drum Cartridge Memory Tag Contact
Chapter 3 3.5.2.11 Removing the Drum Cartridge Memory Tag Contact 0007-8911 1) Disconnect the connector [1] from the DC controller board; then, free the harness from the guide [2]. F-3-557 4) Close the reader assembly; then, detach the rear cover[1]. F-3-554 2) Remove the 2 claws [1], and detach the drum cartridge memory tag contact [2].
Page 175: Removing The Right Cover
Chapter 3 F-3-563 3.5.3.3 Removing the Right Cover 0007-8603 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3]. F-3-560 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 176: Removing The Power Supply Assembly
Chapter 3 F-3-570 F-3-567 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. 3.5.3.5 Removing the Power Supply Assembly 0007-8640 1) Remove the 6 screws [1], and detach the power supply assembly [2]. F-3-568 3.5.3.6 Removing the Face-Down Cover 0007-8661...
Page 177: Removing The Right Frame
Chapter 3 F-3-575 3.5.3.8 Removing the Right Frame 0011-6597 1) Remove the 5 screws [1], and detach the right frame [2]. F-3-572 Enlarged View of the Paper Retainer F-3-573 F-3-576 When attaching the top cover, be sure to fit the link lever [2] while keeping 3.5.3.9 Removing the Shield Plate the drive release lever [1] in up position (i.e., with drive disengaged).
Page 178: Removing The Registration Clutch
Chapter 3 3.5.3.11 Removing the Registration Clutch 3) Disconnect the 3 connectors [1], and remove the 8 screws [2]; then, detach the main drive assembly [3]. 0007-8844 1) Disconnect the connector [1], and open the harness band [2]. 2) Remove the E-ring [3], and detach the registration clutch [4]. F-3-579 The connector on the registration clutch side is designed to prevent discon- nection.
Page 179: Removing The Laser Scanner Unit Base
Chapter 3 F-3-588 2) Free the harness [1] from the harness guide [2]. F-3-585 3) Disconnect the connector [3], and remove the 8 screws [4]; then, detach the laser scanner base [5] Be sure to tighten the self-tapping screw used to secure the rotary drive as- sembly only at the end of the work.
Page 180: Engaging Motor
Chapter 3 3) While pushing the boss [1], release the rotary release lever (right) [2] in upward direction. F-3-594 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-591 4) While pushing the boss [1], release the rotary release lever (left) [2] in upward direction.
Page 181: Removing The Right Cover
Chapter 3 When closing the reader assembly, be sure to push in the arm [1] first. F-3-601 3.5.4.3 Removing the Right Cover 0007-8602 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3].
Page 182: Removing The Power Supply Assembly
Chapter 3 F-3-608 F-3-605 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. 3.5.4.5 Removing the Power Supply Assembly 0007-8641 1) Remove the 6 screws [1], and detach the power supply assembly [2]. F-3-606 3.5.4.6 Removing the Face-Down Cover 0007-8662...
Page 183: Removing The Shift Motor
Chapter 3 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-3-610 Enlarged View of the Paper Retainer F-3-611 When attaching the top cover, be sure to fit the link lever [2] while keeping F-3-614 the drive release lever [1] in up position (i.e., with drive disengaged).
Page 184: Removing The Reader Assembly
Chapter 3 When closing the reader assembly, be sure to push in the arm [1] first. F-3-616 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-620 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 185: Removing The Right Cover
Chapter 3 F-3-627 F-3-623 3.5.5.5 Removing the Power Supply Assembly 3.5.5.3 Removing the Right Cover 0007-8643 1) Remove the 6 screws [1], and detach the power supply assembly [2]. 0007-8596 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3].
Page 186 Chapter 3 F-3-630 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. F-3-632 Enlarged View of the Paper Retainer F-3-633 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).
Page 187: Removing The Developing Rotary Motor
Chapter 3 F-3-635 3.5.5.8 Removing the Right Frame 0011-6598 1) Remove the 5 screws [1], and detach the right frame [2]. F-3-638 2) Disconnect the connector [1], and remove the 3 screws [2]; then, detach the rotary drive assembly [3]. F-3-636 3.5.5.9 Removing the Shield Plate 0011-6619...
Page 188: Removing The Reader Assembly
Chapter 3 2) Open the face-up cover [2], and remove the 4 screws [3] of the rear cover. When closing the reader assembly, be sure to push in the arm [1] first. F-3-641 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-645 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 189: Removing The Right Cover
Chapter 3 F-3-652 F-3-648 3.5.6.5 Removing the Power Supply Assembly 3.5.6.3 Removing the Right Cover 0007-8644 1) Remove the 6 screws [1], and detach the power supply assembly [2]. 0007-8598 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3].
Page 190 Chapter 3 F-3-655 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. F-3-657 Enlarged View of the Paper Retainer F-3-658 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).
Page 191: Removing The Toner Cartridge Motor
Chapter 3 F-3-660 3.5.6.8 Removing the Right Frame 0011-6599 1) Remove the 5 screws [1], and detach the right frame [2]. F-3-663 2) Disconnect the connector [1], and remove the 3 screws [2]; then, detach the rotary drive assembly [3]. F-3-661 3.5.6.9 Removing the Shield Plate 0011-6620...
Page 192: Removing The Developing Rotary Stopper Solenoid
Chapter 3 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-666 3.5.6.13 Removing the Developing Rotary Stopper Solenoid 0007-8875 1) Remove the 3 screws [1], and detach the motor base [2] from the rotary drive assembly.
Page 193: Removing The Right Cover
Chapter 3 F-3-676 3.5.7.3 Removing the Right Cover 0007-8589 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3]. F-3-673 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 194: Removing The Power Supply Assembly
Chapter 3 F-3-683 F-3-680 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. 3.5.7.5 Removing the Power Supply Assembly 0007-8645 1) Remove the 6 screws [1], and detach the power supply assembly [2]. F-3-681 3.5.7.6 Removing the Face-Down Cover 0007-8666...
Page 195: Removing The Dust-Blocking Cover
Chapter 3 F-3-688 3.5.7.8 Removing the Inside Cover 0007-8856 1) Remove the 2 claws [1], and detach the inside cover [2]. F-3-685 Enlarged View of the Paper Retainer F-3-689 F-3-686 3.5.7.9 Removing the Dust-Blocking Cover 0007-8858 1) Remove the claw [1], and detach the dust-blocking cover [2]. 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).
Page 196: Itb Home Position Detection Pcb
Chapter 3 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-3-691 3.5.8 ITB Home Position Detection PCB 3.5.8.1 Removing the Rear Cover 0007-8552 1) Disconnect the cable [1] of the power supply assembly.
Page 197: Removing The Right Cover
Chapter 3 F-3-698 5) Remove the 6 screws [1], and lift the reader unit to detach. F-3-702 F-3-699 F-3-703 3.5.8.3 Removing the Right Cover 3.5.8.5 Removing the Power Supply Assembly 0007-8590 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach 0007-8646 1) Remove the 6 screws [1], and detach the power supply assembly [2].
Page 198: Removing The Top Cover
Chapter 3 3.5.8.7 Removing the Top Cover 0007-8684 1) Remove the claw [1], and detach the ring gear [2]. 2) Free the link lever [3] from the shaft [4]. F-3-706 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4].
Page 199: Removing The Itb Home Position Detection Pcb
Chapter 3 F-3-714 2) Remove the 2 screws [1], and detach the transfer inlet guide [2]. F-3-711 3.5.8.8 Removing the Inside Cover 0007-8860 1) Remove the 2 claws [1], and detach the inside cover [2]. F-3-715 3) Remove the 2 claws [1] of the left and right bushings; then, detach the transfer charging roller [2].
Page 200: Waste Toner Detection Pcb
Chapter 3 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]. F-3-718 3.5.10 Waste toner Detection PCB 3.5.10.1 Removing the Rear Cover 0007-8550 1) Disconnect the cable [1] of the power supply assembly.
Page 201: Removing The Right Cover
Chapter 3 F-3-724 4) Open the harness band [1], and disconnect the 2 cables connected to the reader assembly. F-3-728 3.5.10.4 Removing the Left Cover 0007-8611 1) Remove the 2 screws [1] from the side; then, remove the 3 claws [2] to detach the right cover [3].
Page 202: Removing The Face-Down Cover
Chapter 3 F-3-731 3.5.10.6 Removing the Face-Down Cover 0007-8668 1) Remove the 2 screws [1], and slide the face-down cover [2] in downward direction to detach. 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-down sub cover, while making sure that the paper retainer [3] is not blocking the feed path.
Page 203: Removing The Main Drive Assembly
Chapter 3 F-3-740 F-3-737 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 DC controller PCB side. If you are fitting the drum cartridge in the machine with the top cover re- 3.5.10.10 Removing the Main Drive Assembly moved, be sure to do so with the drive release lever [1] fully in up position (i.e., with drive disengaged).
Page 204: Removing The Waste Toner Detection Pcb
Chapter 3 F-3-747 4) Close the reader assembly; then, detach the rear cover[1]. F-3-744 3.5.10.11 Removing the Waste Toner Detection PCB 0007-8855 1) Disconnect the connector (J108) [1] of the DC controller box; then, free the harness from the harness clamp [2]. 2) Remove the screw [3], and detach the waste toner detection PCB.
Page 205: Removing The Right Cover
Chapter 3 F-3-753 3.5.11.3 Removing the Right Cover 0007-8586 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3]. F-3-750 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 206: Removing The Power Supply Assembly
Chapter 3 F-3-760 F-3-757 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. 3.5.11.5 Removing the Power Supply Assembly 0007-8655 1) Remove the 6 screws [1], and detach the power supply assembly [2]. F-3-758 3.5.11.6 Removing the Face-Down Cover 0007-8669...
Page 207: Removing The Right Frame
Chapter 3 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-3-762 Enlarged View of the Paper Retainer F-3-763 F-3-766 When attaching the top cover, be sure to fit the link lever [2] while keeping 3.5.11.9 Removing the Registration Clutch the drive release lever [1] in up position (i.e., with drive disengaged).
Page 208: Removing The Rotary Drive Assembly
Chapter 3 F-3-768 2) Remove the 2 screws [1], and detach the front sub cover [2]. F-3-771 F-3-769 3.5.11.11 Removing the Rotary Drive Assembly 0007-8836 1) Disconnect the 4 connectors [1], and remove the 2 screws [2]. 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 drive engaged).
Page 209: Removing The Developing Rotary Assembly
Chapter 3 F-3-776 2) Free the harness [1] from the harness guide [2]. F-3-773 3) Disconnect the connector [3], and remove the 8 screws [4]; then, detach the laser scanner base [5] Be sure to tighten the self-tapping screw used to secure the rotary drive as- sembly only at the end of the work.
Page 210: Removing The Developing Rotary/Toner Level Detection Pcb
Chapter 3 3) While pushing the boss [1], release the rotary release lever (right) [2] in upward direction. F-3-782 3.5.12 Toner Cartridge Motor 3.5.12.1 Removing the Rear Cover 0007-8556 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-3-779 4) While pushing the boss [1], release the rotary release lever (left) [2] in upward direction.
Page 211: Removing The Reader Assembly
Chapter 3 3.5.12.2 Removing the Reader Assembly 0007-8575 1) Open the reader assembly, and remove the left and right E-rings [1]; then, pull out the pin [2]. F-3-789 5) Remove the 6 screws [1], and lift the reader unit to detach. F-3-786 When closing the reader assembly, be sure to push in the arm [1] first.
Page 212: Removing The Power Supply Assembly
Chapter 3 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-3-793 F-3-797 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4].
Page 213: Removing The Right Frame
Chapter 3 F-3-802 3.5.12.8 Removing the Right Frame 0011-6602 1) Remove the 5 screws [1], and detach the right frame [2]. F-3-799 Enlarged View of the Paper Retainer F-3-800 F-3-803 When attaching the top cover, be sure to fit the link lever [2] while keeping 3.5.12.9 Removing the Shield Plate the drive release lever [1] in up position (i.e., with drive disengaged).
Page 214: Pickup And Feeding System
Chapter 3 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 cable [1] of the power supply assembly. 2) Open the face-up cover [2], and remove the 4 screws [3] of the rear cover.
Page 215: Removing The Cassette Pickup Roller
Chapter 3 F-3-815 3) Lift the release knob [1] slightly, and turn it bout 90 deg toward the rear; then, slide the release knob fully. F-3-811 F-3-816 4) Slide the pickup roller [1] fully; then, slide the pickup roller at an angle in downward direction to detach.
Page 216: Removing The Reader Assembly
Chapter 3 F-3-819 4) Close the reader assembly; then, detach the rear cover[1]. 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 disconnect the 2 cables [2] connected to the reader assembly.
Page 217: Removing The Right Cover
Chapter 3 F-3-829 F-3-825 3.6.2.6 Removing the Power Supply Assembly 3.6.2.4 Removing the Right Cover 0007-8649 1) Remove the 6 screws [1], and detach the power supply assembly [2]. 0007-8604 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3].
Page 218 Chapter 3 F-3-832 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. F-3-834 Enlarged View of the Paper Retainer F-3-835 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).
Page 219: Removing The Cassette Paper Sensor
Chapter 3 F-3-840 3.6.2.12 Removing the Cassette Paper Sensor F-3-837 0007-8882 1) Remove the 2 claws [1]. 3.6.2.9 Removing the Right Frame 0011-6603 1) Remove the 5 screws [1], and detach the right frame [2]. F-3-838 F-3-841 3.6.2.10 Removing the Left Frame 2) Disconnect the connector [1], and detach the paper sensor [2].
Page 220: Removing The Reader Assembly
Chapter 3 When closing the reader assembly, be sure to push in the arm [1] first. F-3-843 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-847 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 221: Removing The Right Cover
Chapter 3 F-3-854 F-3-850 3.6.3.6 Removing the Power Supply Assembly 3.6.3.4 Removing the Right Cover 0007-8650 1) Remove the 6 screws [1], and detach the power supply assembly [2]. 0007-8606 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3].
Page 222 Chapter 3 F-3-857 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. F-3-859 Enlarged View of the Paper Retainer F-3-860 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).
Page 223: Removing The Cassette Feed Sensor
Chapter 3 F-3-865 3.6.3.12 Removing the Cassette Feed Sensor F-3-862 0007-8884 1) Remove the claw [1], and detach the sensor cover [2]. 3.6.3.9 Removing the Right Frame 0011-6604 1) Remove the 5 screws [1], and detach the right frame [2]. F-3-866 2) Remove the 2 claws [1], and detach the sensor cover [2].
Page 224: Cassette Pickup Solenoid
Chapter 3 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-3-869 3.6.4 Cassette Pickup Solenoid 3.6.4.1 Removing the Cassettes 0007-7062 1) Hold the grip, and take out the cassette. 3.6.4.2 Removing the Rear Cover 0007-7063 1) Disconnect the cable [1] of the power supply assembly.
Page 225: Removing The Right Cover
Chapter 3 F-3-876 5) Remove the 6 screws [1], and lift the reader unit to detach. F-3-880 F-3-877 F-3-881 3.6.4.4 Removing the Right Cover 3.6.4.6 Removing the Power Supply Assembly 0007-7065 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach 0007-7067 1) Remove the 6 screws [1], and detach the power supply assembly [2].
Page 226: Removing The Top Cover
Chapter 3 3.6.4.8 Removing the Top Cover 0007-7073 1) Remove the claw [1], and detach the ring gear [2]. 2) Free the link lever [3] from the shaft [4]. F-3-884 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4].
Page 227: Removing The Cassette Pickup Solenoid
Chapter 3 F-3-892 3.6.4.12 Removing the Cassette Pickup Solenoid F-3-889 0007-7098 1) Remove the 3 claws [1], and slide the PCB cover [2] to detach. 3.6.4.9 Removing the Right Frame 0011-6585 1) Remove the 5 screws [1], and detach the right frame [2]. F-3-893 2) Remove the screw [1], and detach the dust-blocking plate [2].
Page 228: Removing The Cassette Separation Pad
Chapter 3 F-3-900 4) Pick the release claw [1], and slide the manual feed pickup roller [2] to the right to detach. F-3-896 3.6.5.3 Removing the Cassette Separation Pad 0007-6967 1) Detach the paper level check lever [1] (RB-0866) found on the left of the cassette.
Page 229: Removing The Reader Assembly
Chapter 3 F-3-903 4) Close the reader assembly; then, detach the rear cover[1]. 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 disconnect the 2 cables [2] connected to the reader assembly.
Page 230: Removing The Right Cover
Chapter 3 F-3-913 F-3-909 3.6.7.5 Removing the Power Supply Assembly 3.6.7.3 Removing the Right Cover 0007-7112 1) Remove the 6 screws [1], and detach the power supply assembly [2]. 0007-7110 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3].
Page 231 Chapter 3 F-3-916 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. F-3-918 Enlarged View of the Paper Retainer F-3-919 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).
Page 232: Removing The Right Frame
Chapter 3 3.6.7.11 Removing the Registration Clutch 0007-7125 1) Disconnect the connector [1], and open the harness band [2]. 2) Remove the E-ring [3], and detach the registration clutch [4]. F-3-925 F-3-921 The connector on the registration clutch side is designed to prevent discon- 3.6.7.8 Removing the Right Frame nection.
Page 233: Removing The Manual Pickup Feed Solenoid
Chapter 3 3.6.8 Manual Separation Roller 3) Disconnect the 3 connectors [1], and remove the 8 screws [2]; then, detach the main drive assembly [3]. 3.6.8.1 Removing the Cassettes 0007-8510 1) Hold the grip, and take out the cassette. 3.6.8.2 Removing the Rear Cover 0007-8511 1) Disconnect the cable [1] of the power supply assembly.
Page 234: Removing The Left Cover (With The Reader Assembly Intact)
Chapter 3 F-3-938 3.6.8.4 Removing the Left Cover (with the reader assembly intact) 0007-8513 F-3-935 1) Disconnect the plug [1], and free the cable [2] of the reader assembly from the guide. 2) Open the reader assembly [1] and the top cover [2]. F-3-936 3) Remove the 2 screws [1] from the side;...
Page 235: Removing The Front Cover
Chapter 3 F-3-944 F-3-941 2) Slide the front cover [1] to the left to detach. F-3-945 3.6.8.7 Removing the Manual Feed Pickup Separation F-3-942 3.6.8.5 Removing the Lower Front Cover 0007-8516 1) Remove the screw [1], and detach the manual feed pickup separation pad [2].
Page 236: Removing The Fixing Assembly
Chapter 3 F-3-950 4) Close the reader assembly; then, detach the rear cover[1]. F-3-947 3.6.9.2 Removing the Fixing Assembly 0011-7865 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.
Page 237: Removing The Right Cover
Chapter 3 F-3-956 3.6.9.5 Removing the Right Cover 0007-8585 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3]. F-3-953 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 238: Removing The Power Supply Assembly
Chapter 3 F-3-963 F-3-960 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. 3.6.9.7 Removing the Power Supply Assembly 0007-8635 1) Remove the 6 screws [1], and detach the power supply assembly [2]. F-3-961 3.6.9.8 Removing the Face-Down Cover 0007-8788...
Page 239: Removing The Right Frame
Chapter 3 F-3-968 3.6.9.10 Removing the Right Frame 0011-6606 1) Remove the 5 screws [1], and detach the right frame [2]. F-3-965 Enlarged View of the Paper Retainer F-3-966 F-3-969 When attaching the top cover, be sure to fit the link lever [2] while keeping 3.6.9.11 Removing the Left Frame the drive release lever [1] in up position (i.e., with drive disengaged).
Page 240: Removing The Registration Detection Pcb
Chapter 3 F-3-975 3) With care, shift down the machine to the left; then, remove the 8 screws [2] from the bottom, and detach the lower case assembly [3]. F-3-971 3.6.9.13 Removing the Shield Plate 0011-6622 1) Free the flat cable [1] from the connector. 2) Remove the 6 screws [2], and detach the shielding plate [3].
Page 241: Main Motor
Chapter 3 F-3-978 3.6.10 Main Motor 3.6.10.1 Removing the Rear Cover 0007-7974 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-3-982 When closing the reader assembly, be sure to push in the arm [1] first. F-3-979 3) Open the reader assembly [4], and lift to free the 2 claws [5].
Page 242: Removing The Right Cover
Chapter 3 F-3-985 5) Remove the 6 screws [1], and lift the reader unit to detach. F-3-989 F-3-986 F-3-990 3.6.10.3 Removing the Right Cover 3.6.10.5 Removing the Power Supply Assembly 0007-8004 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach 0007-8007 1) Remove the 6 screws [1], and detach the power supply assembly [2].
Page 243: Removing The Top Cover
Chapter 3 3.6.10.7 Removing the Top Cover 0007-8010 1) Remove the claw [1], and detach the ring gear [2]. 2) Free the link lever [3] from the shaft [4]. F-3-993 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4].
Page 244: Removing The Right Frame
Chapter 3 3.6.10.11 Removing the Registration Clutch 0007-8045 1) Disconnect the connector [1], and open the harness band [2]. 2) Remove the E-ring [3], and detach the registration clutch [4]. F-3-1002 F-3-998 The connector on the registration clutch side is designed to prevent discon- 3.6.10.8 Removing the Right Frame nection.
Page 245: Removing The Main Motor
Chapter 3 3) Disconnect the 3 connectors [1], and remove the 8 screws [2]; then, detach the main drive assembly [3]. 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 assembly 90 deg in the direction of the arrow.
Page 246: Removing The Fixing Film Unit
Chapter 3 F-3-1010 3.7.2.3 Removing the Fixing Film Unit 0011-7554 1) Unhook the 1 claw [1] and remove the pressure roller gear[2]. 2) Unhook the 1 claw [3] and remove the delivery roller gear[4]. 3) Remove the idle gear[5]. F-3-1013 Make sure that the 2 springs are fitted onto the bosses on the fixing upper cover when reassembling the cover.
Page 247: Fixing Pressure Roller
Chapter 3 F-3-1020 F-3-1016 12) Remove the cable [1] from the guide [2]. 3.7.3 Fixing Pressure Roller 13) Remove the 2 claws [4], and disconnect the connector [3]. 14) Free the cable from the edge saddle [5]. 3.7.3.1 Removing the Fixing Assembly 0011-7853 1) Turn the lever [1] of the fixing assembly 90 deg in the direction of the arrow.
Page 248 Chapter 3 F-3-1026 6) Remove the upper separation guide [1]. F-3-1023 7) Remove the 2 releasing levers [2]. 4) Pressing the boss [1] inward, rotate the delivery idle gear shaft holder [2] 8) Slide the pressure plate [4] in upward direction, and remove the 2 bosses in the direction of the arrow and remove the holder together with the [3].
Page 249: Removing The Fixing Pressure Roller
Chapter 3 power cord first. Also, be sure to wait unit the fixing assembly has cooled before removing it after disconnecting the power cord. F-3-1030 Make sure that all cables on the fixing film unit are hooked into the fixing separation guide when reassembling the guide.
Page 250: Removing The Reader Assembly
Chapter 3 F-3-1037 4) Close the reader assembly; then, detach the rear cover[1]. 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 disconnect the 2 cables [2] connected to the reader assembly.
Page 251: Removing The Right Cover
Chapter 3 F-3-1047 F-3-1043 3.7.5.5 Removing the Power Supply Assembly 3.7.5.3 Removing the Right Cover 0007-8889 1) Remove the 6 screws [1], and detach the power supply assembly [2]. 0007-8887 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3].
Page 252 Chapter 3 F-3-1050 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. F-3-1052 Enlarged View of the Paper Retainer F-3-1053 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).
Page 253: Removing The Right Frame
Chapter 3 F-3-1058 3.7.5.11 Removing the Shield Plate F-3-1055 0011-6624 1) Free the flat cable [1] from the connector. 2) Remove the 6 screws [2], and detach the shielding plate [3]. 3.7.5.8 Removing the Right Frame 0011-6608 1) Remove the 5 screws [1], and detach the right frame [2]. F-3-1059 3.7.5.12 Removing the Inside Cover 0007-8898...
Page 254: Removing The Toner Tray
Chapter 3 3.7.5.14 Removing the Main Drive Assembly 0007-8900 1) Shift down the drive release lever [1], and remove the gear [2]. F-3-1062 2) Remove the 2 screws [1], and detach the front sub cover [2]. F-3-1065 3.7.5.15 Removing the Toner Tray 0007-8901 1) Remove the 2 claws [1], and detach the toner tray [2].
Page 255: Removing The Fixing Front Paper Sensor
Chapter 3 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. 3.7.5.19 Removing the Fixing Front Paper Sensor 0007-8906 1) Bend over the plastic sheet [1].
Page 256: Removing The Reader Assembly
Chapter 3 When closing the reader assembly, be sure to push in the arm [1] first. F-3-1074 3) Open the reader assembly [4], and lift to free the 2 claws [5]. F-3-1078 2) Open the left and right claws in the direction of the arrows, and detach the hinge cover [1].
Page 257: Removing The Right Cover
Chapter 3 F-3-1085 F-3-1081 3.7.6.5 Removing the Power Supply Assembly 3.7.6.3 Removing the Right Cover 0007-8651 1) Remove the 6 screws [1], and detach the power supply assembly [2]. 0007-8592 1) Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach the left cover [3].
Page 258 Chapter 3 F-3-1088 3) Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. F-3-1090 Enlarged View of the Paper Retainer F-3-1091 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).
Page 259: Removing The Fixing Motor
Chapter 3 F-3-1096 F-3-1093 3.7.6.8 Removing the Right Frame 0011-6609 1) Remove the 5 screws [1], and detach the right frame [2]. F-3-1094 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...
Page 261 Chapter 4 MAINTENANCE AND INSPECTION...
Page 263: User Maintenance
Contents Contents 4.1 User Maintenance ................................4-1 4.1.1 Cleaning the Scanning Area................................. 4-1 4.1.2 Cleaning the ADF Area ................................4-1 4.1.3 Toner Cartridge .................................... 4-1 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 ..........................
Page 265: User Maintenance
Chapter 4 4.1 User Maintenance 4.1.1 Cleaning the Scanning Area 0008-3059 Wipe the scanning area (shaded area) with a clean, soft, lint-free cloth moistened with water, then wipe with a clean, soft, dry, lint-free cloth. Platen glass co ver Platen glass F-4-1 4.1.2 Cleaning the ADF Area 0008-3062...
Page 266: Density Sensor/Itb Home Position Sensor
Chapter 4 6) Press [menu] on the control panel, and make the following selections: 10. maintenance>3. roller cleaning>2. start cleaning. Then, press [OK] to start cleaning. F-4-4 - Take care. Once the machine starts cleaning, you will not be able to stop it in the middle. - It take about 3 min to clean the fixing assembly (i.e., from when you have placed the cleaning paper in the manual feed tray to when the paper is delivered).
Page 267: Periodical Service
Chapter 4 4.4 Periodical Service 4.4.1 Periodic Service 0003-0865 The printer has no parts that require periodic servicing.
Page 269 Chapter 5 TROUBLESHOOTING...
Page 271 Contents Contents 5.1 Measurement and Adjustment ............................5-1 5.1.1 Initial Checkup..................................... 5-1 5.1.1.1 Initial Check ........................................5-1 5.1.2 Test Printing....................................5-1 5.1.2.1 Test Print .........................................5-1 5.1.3 Electrical Adjustment................................... 5-1 5.1.3.1 Work After Replacing the Laser/Scanner Unit ..............................5-1 5.1.3.2 When Replacing the SCNT Board ..................................5-2 5.1.4 Fixing System ....................................
Page 273: Measurement And Adjustment
Chapter 5 5.1 Measurement and Adjustment 5.1.1 Initial Checkup Feeding Direction 5.1.1.1 Initial Check 0008-1741 Check the following items before you diagnose malfunction. If any failure is found, a service engineer is to clear the problem and to give the instruction to a user.
Page 274: When Replacing The Scnt Board
Chapter 5 After PWM adjustment, the machine should start initialization sequence. 5.1.3.2 When Replacing the SCNT Board 0008-4973 The flash ROM mounted on the SCNT board retains PWM adjustment settings that are specific to individual laser/scanner units, requiring you to update the settings whenever you have replaced a laser/scanner unit.
Page 275: Special Tools
Chapter 5 Tool name Tool No. Remark Soldering iron CK-0309 100V, 30 W Mallet, plastic head CK-0314 Brush CK-0315 Penlight CK-0327 Plastic bottle CK-0327 100cc Solder CK-0329 1.5 (mm dia) × 1 (mm) Desoldering wick CK-0330 1.5 mm Lint-free paper CK-0336 500SH/PKG Oiler...
Page 276 Chapter 5 J105 J705 J137 J104 J106 J702 J114 J119 J122 J133 J115 J714 J134 J135 J113 J136 J112 J108 J201 J302 J402 J403 J505 J503 J506 J501 J504 J502 F-5-5 JEROM1 JDBAG1 JUSB1 JLAN1 JOP701 JJTAG1 JOP702 JSNS1 JSPK1 J722 J723 JBMTR1...
Page 277: Error Code Outline
Chapter 5 JPSU1 JNCU1 JBAT2 JBAT1 JNCU2 JLBP1 J101 CN105 J712 J202 J203 J125 J127 J201 J301 J205 J204 J401 F-5-7 5.4 Error Code 5.4.1 Outline 5.4.1.1 Error Code Outline 0008-3126 An error code is used to indicate a fault in a machine, and is indicated in the machine's LCD or reports, showing the nature (symptoms) of the fault. Using the error code, the user or the service man can readily find out how to correct the fault by simply referring to the User's Manual or service manual.
Page 278: Service Mode
Chapter 5 Code Main cause/description Remedial action E010 main motor fault Check the connector of the main motor. Replace the main motor. replace the DCNT Borad. E021 developing rotary motor fault Check the connector of the developing rotary motor. Replace the developing rotary motor. Replace the DCNT Borad PCB.
Page 279: Service Data Entry Method
Chapter 5 #DOWNLOAD Do not use. #CLEAR (data initialization mode) Various data are initialized by selecting one of these setting items. #ROM (ROM management) ROM data such as the version number and checksum are displayed. The effective SSSWs/parameters and their default values in this machine are shown in Service Data Flowchart. However, detailed descriptions of only service data newly added to this machine are provided.
Page 280: Sssw-Sw18
Chapter 5 5.5.2.3 SSSW-SW18 5.5.2.3.1 List of Functions 0008-1886 T-5-5 Function Detection of carrier disconnection between the DCS signal and the TCF signal Waiting time for carrier disconnection between the DCS 600 msec 300 msec* signal and the TCF signal Not used Not used Not used...
Page 281: Print Test
Chapter 5 Operating DRAM TEST 40960KB 40960KB: D-RAM total memory capacity (bytes) ..: Indicates an address for which write testing is complete. . : Indicates an address for which read testing is complete. Error Normal end Error display WRT : data written DRAM TEST 40960KB WRT=33CC...
Page 282: Frequency Test
Chapter 5 T-5-6 Modem test type Overview Frequency test The modem sends tonal signals from the modular jack and the speaker. G3 signal transmission test The modem sends G3 signals from the modular jack and the speaker. V.34 G3 signal transmission test The modem sends V.34 G3 signals from the modular jack and the speaker.
Page 283: Faculty Test
Chapter 5 Cursor key Speed 7.2 kbps 4.8 kbps 2.4 kbps Memo The transmission level for each baud rate and speed follows the service data. 5.5.4.5 Faculty Test 5.5.4.5.1 FACULTY Tests 0008-1992 The faculty tests are selected by pressing the numeric key 6 from the test mode menu. These tests test the following faculties of this fax.
Page 284: Operation Panel Tests
Chapter 5 5.5.4.5.3 Operation Panel Tests 0008-1995 The operation panel test is selected by pressing the numeric key 7 from the faculty test menu. In this test, check that the display, LED lamps and keys on the operation panel are operating correctly. Display test Pressing the B/W Start key from the operation panel menu, "H"...
Page 285 Chapter 5 6-3 OPERATION PANEL Press B&W Start key. HHHHHHHHHHHHHHHHHHHH H pattern displayed HHHHHHHHHHHHHHHHHHHH Press B&W Start key. All LCD dots displayed Press B&W Start key. The LED lamps other than the Energy Saver key go on. Press B&W Start key. 0123456789*#ABCDEDFG When a key is pressed, the corresponding character goes out.
Page 287 Chapter 6 APPENDIX...
Page 289 Contents Contents 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 6.1.3.1 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(VR), LED, and Check Pins by PCB......................6-3 6.1.6.1 Variable Resistors (VR), Test Pins, Jumpers, and Switches...........................6-3...
Page 291: Outline Of Electrical Components
Chapter 6 6.1 Outline of Electrical Components 6.1.1 Cluth/Solenoid 6.1.1.1 Cluth/Solenid 0008-1743 F-6-1 T-6-1 Name Notation Developing rotary stopper solenoid SL93 Multi-purpose tray pick-up solenoid SL92 Roller engaging clutch Registration clutch Cassette pick-up solenoid 6.1.2 Motor/Fan 6.1.2.1 Motor/Fan 0008-1746 F-6-2 T-6-2 Name Notation...
Page 292: Sensor
Chapter 6 6.1.3 Sensor 6.1.3.1 Sensor 0008-1745 [11] [10] F-6-3 T-6-3 Name Notation Multi-purpose tray paper sensor PS718 Fixing delivery paper sensor Developing rotary engaging sensor PS712 Front fixing paper detection sensor PS720 Roller engaging sensor PS714 Paper Delivery Sensor PS721 Cassette Feeder Sensor PS717...
Page 293: Pcbs
Chapter 6 6.1.5 PCBs 6.1.5.1 PCBs 0008-1748 [12] [16] [15] [13] [14] [17] [11] [10] F-6-5 T-6-5 Waste toner detection PCB [10] Relay PCB Registration detection PCB [11] Paper feeder Driver PCB Density detection PCB [12] SCNT PCB ITB home position detection PCB [13] Operation Panel PCB Developing rotary/toner level detection PCB [14]...
Page 295 Jan 20 2006...

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Canon MF8100 Series Service Manual

Table of Contents

Chapter 1 PRODUCT DESCRIPTION

Chapter 2 TECHNICAL REFERENCE

Table of Contents

Chapter 3 DISASSEMBLY and ASSEMBLY

Cartridge Removal at Trouble Eruption Cartridge Removal at Trouble Eruption

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