Page 1 July 25, 2009 Revision 0 Color imageRUNNER LBP5460 Service Manual Product Description Technical Reference Disassembly and Assembly Maintenance and Inspection Troubleshooting Appendix...
Page 2 Canon will release technical information as the need arises. In the event of major not be copied, reproduced or translated into another language, in whole or in part, without the changes in the contents of this manual over a long or short period, Canon will issue a new written consent of Canon Inc.
Page 3: Explanation Of Symbols
The following rules apply throughout this Service Manual: Explanation of Symbols The following symbols are used throughout this Service Manual. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with reference to the timing of Symbols Explanation operation.
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Page 5: Table Of Contents
Operation Sequence ---------------------------------------------------------2-3 Contents Overview ----------------------------------------------------------------------------- 2-3 Laser Exposure System -----------------------------------------------------2-4 Overview ----------------------------------------------------------------------------- 2-4 Detecting a Failure in the Optical Assembly -------------------------------- 2-4 Product Description Safety --------------------------------------------------------------------------------- 2-4 Characteristics -----------------------------------------------------------------1-2 Image Formation System ---------------------------------------------------2-5 Overview ----------------------------------------------------------------------------- 2-5 System Configuration --------------------------------------------------------1-2 System Configuration ------------------------------------------------------------- 1-2 Image Formation Process ------------------------------------------------------- 2-5 Product Specifications -------------------------------------------------------1-3...
Page 6 Removing the Developing Disengagement Motor ------------------------3-47 External-related Issues ------------------------------------------------------3-9 Removing Left Cover ------------------------------------------------------------- 3-9 Removing the Secondary Transfer Outer Roller Unit --------------------3-48 Removing Rear Cover ------------------------------------------------------------ 3-9 Removing the Pickup Motor ----------------------------------------------------3-49 Removing Right Rear Cover ---------------------------------------------------3-10 Removing the Drum Motor 1 ---------------------------------------------------3-50 Removing the Control Panel Unit Right Cover ----------------------------3-10 Removing the Drum Motor 2 ---------------------------------------------------3-50 Removing the Control Panel Unit Left Cover ------------------------------ 3-11...
Page 7 Test Print ----------------------------------------------------------------------------- 5-9 Adjustment of the Image Formation System -------------------------------- 5-9 Adjustment of the Fixing Assembly -------------------------------------------5-10 Adjustment of Electrical Parts ------------------------------------------------- 5-11 Outline of Electrical Components --------------------------------------- 5-12 Sensor -------------------------------------------------------------------------------5-12 Motor ---------------------------------------------------------------------------------5-13 Clutch/Solenoid --------------------------------------------------------------------5-13 Fan -----------------------------------------------------------------------------------5-14 LED/Heater/Thermistor/Switch ------------------------------------------------5-14 PCB ----------------------------------------------------------------------------------5-15 Connector Layout Drawing ----------------------------------------------- 5-17 Connector List ---------------------------------------------------------------------5-17...
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Page 9: Product Description
Product Description ■ Characteristics System Configuration ■ Product Specifications ■ ■ Detailed Specification ■ Parts Name ■ Operation ■ Safety Precautions Product Description...
Page 10 Product Description > System Configuration > System Configuration System Configuration Characteristics System Configuration ● High-Speed Color Printer This machine is a high-speed color printer, realizing a speed of approximately 30 pages per minute in full-color printing with A4 vertical paper. ●...
Page 11: Product Specifications
Product Description > Product Specifications > Host Machine Specifications Product Specifications Item Function / Method Standard sizes: Paper size for the cassette A4, B5, A5, Letter, Executive, 16K Host Machine Specifications Custom paper sizes: Portrait orientation (when the short edges of the •...
Page 12 Product Description > Product Specifications > Host Machine Specifications Item Function / Method Automatic gradation correction Enabled Temperature range in the use environment 10 - 30 degree C 10 - 80%RH Humidity range in the use environment Lwad (declared A-weighted sound power level Operation noise (1B=10dB)) During standby: 5B or less...
Page 13: Detailed Specification
Product Description > Detailed Specification > Paper Type Detailed Specification Paper Type ●: Both single-sided and duplex printing is supported. Printing Speed ○: Only single-sided printing is supported. - : Printing cannot be performed. Printing speed of the LBP7750C/5460 machine is shown below. The machine provides the Paper Source Setup Menu same speed in both color and monochrome modes.
Page 14: Paper Size
Product Description > Detailed Specification > Paper Size *5 The custom size paper whose short edges are 5.83 to 8.50 in. (148.0 to 215.9 mm) and Paper Size long edges are 5.83 to 8.50 in. (148.0 to 215.9 mm) can be loaded. This printer supports the following paper sizes.
Page 15: Parts Name
Product Description > Parts Name > External View > Back View of the Printer ■ Back View of the Printer Parts Name Caution : Be sure not to cover the vent with a wall or an article. If it is covered, the inside of the printer becomes hot, which may cause a fire.
Page 16: Cross Section View
Product Description > Parts Name > Cross Section View Cross Section View ■ Inside of the Printer [ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5 ] [ 6 ] [ 7 ] [ 8 ] [ 9 ] [ 10 ] [ 11 ]...
Page 17: Operation
Product Description > Operation > Control Panel > Lamp ■ Operation Lamp Name Condition Control Panel Online Lighting The printer is in the on-line condition (Print data can be (Green) received from the computer in this condition). When the printer is placed in the sleep mode, the on-line lamp The control panel consists of lamps and displays showing the printer condition and operation lights off even if the printer is in the on-line condition.
Page 18: Control Panel Key
Product Description > Operation > Control Panel > Control Panel Key 1-10 ■ Control Panel Key Name Function [14] Reset On-line The reset menu is displayed. Printer reset Name Function operation, discharging of printing data, and Off-line The on-line and off-line conditions are switched. When the key lights up, [1] On-line shutdown operation are performed.
Page 19: Job Menu
Product Description > Operation > Setup Menu > Control Menu Options 1-11 Job Menu Setup Menu ■ ■ Setting Items Control Menu Options Setting Setting Value Setting Setting Value Power Save Mode , [Deep Sleep], [Off], [Panel Off] Job Menu Encrypted Print [On] Power Save in Error...
Page 20 Product Description > Operation > Setup Menu > Paper Source Menu Options 1-12 ■ Paper Source Menu Options Setting Setting Value Date and Time Setting Setting Value Date Settings 01/01/2001 to 31/12/2089 [LTR]*, [LGL], [EXEC], [Mixed Sizes], [Custom Size], [Custom Size R], MP Tray Paper Size [AM/PM]*, [24 Hour] [ENV.
Page 21 Product Description > Operation > Setup Menu > Standard Network Menu Options 1-13 ■ Standard Network Menu Options Setting Setting Value 　　 , [On] Proxy Settings Proxy [Off] Setting Setting Value Server Address TCP/IP Settings Port Number 0 to 80 to 99999 　　...
Page 22 Product Description > Operation > Setup Menu > Quality Menu Options 1-14 Setting Setting Value Setting Setting Value (Display only) MAC Address Halftones 　　 [Resolution] , [Gradation], [Color Tone], E-Mail Print Set. B & W Halftones Text [High Resolution], [Error Diffusion] 　　...
Page 23 Product Description > Operation > Setup Menu > User Maintenance Options 1-15 ■ User Maintenance Options Setting Setting Value 　　 , [1.8], [2.2], [1.0] Gamma Text [1.4] Setting Setting Value , [1.8], [2.2], [1.0] Graphics [1.4] Adj. Start Position , [1.8], [2.2], [1.0] Image [1.4] 　　...
Page 24: Utility Menu
Product Description > Operation > Utility Menu 1-16 Utility Menu ■ Print Mode Options Setting Setting Value Setting Setting Value , [PCL], [PS] , [PDF] Mode Selection [Auto Selection] Configuration Page Network Status Print Auto Switch [Color Regis. Adjust.], [Density Control], [Density Median Cont.], Calibration 　　...
Page 25: Reset Menu
Product Description > Operation > Select Feeder Menu 1-17 Reset Menu Select Feeder Menu Setting Setting Value Setting Setting Value Soft Reset / Hard Reset , [Cassette 1], [Cassette 2] , [Multi-purpose Tray] Paper Source [Auto] [LTR] , [LGL], [EXEC], [Mixed Sizes], [Custom Size], [Custom Size R, Form Feed MP Tray Paper Size ENV.
Page 26: Safety Precautions
Product Description > Safety Precautions > How to Handle the Laser Scanner Unit 1-18 Safety Precautions Toner Safety ■ About Toner Laser Safety Toner is a nontoxic substance which consists of plastic, iron, and a small amount of pigment. Laser beam radiation sometimes causes a danger to human body. To prevent such a danger, Caution : the optical laser system used in this machine is hermetically closed by the protection housing and external cover so that a laser beam does not leak to outside.
Page 27: Points To Note When Replacing/Discarding A Lithium Battery
Product Description > Safety Precautions > Points to Note when Performing Disassembly/Assembly 1-19 Points to Note when Replacing/Discarding a Lithium Battery The main controller PCB in this machine contains a lithium battery as backup power supply for various data just in the case when a blackout occurs or the power plug is removed. Caution : If the battery is replaced with an incorrect type of battery, it may cause an explosion.
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Page 29: Technical Reference
Technical Reference ■ Basic Configuration ■ Operation Sequence ■ Laser Exposure System ■ Image Formation System ■ Fixing System ■ Pickup Feeding System ■ Controller System ■ Embedded RDS Technical Reference...
Page 30: Functional Configuration
Technical Reference > Basic Configuration > Functional Configuration Basic Configuration Functional Configuration The function of this machine is broadly classified into the following five blocks. • Controller system • Laser exposure system • Image formation system • Fixing system • Pickup feeding system The following figure shows the block category of the function.
Page 31: Operation Sequence
Technical Reference > Operation Sequence > Overview Operation Sequence Overview Operation sequence is controlled by the DC controller contained in the controller system. The following shows operation in each interval from when the power of this machine is turned on to when printing is completed and each motor stops.
Page 32: Laser Exposure System
Technical Reference > Laser Exposure System > Safety One laser scanner unit consists of the laser drive unit, which controls the laser unit, and the Laser Exposure System scanner motor unit, which controls the scanner motor. One scanner motor and scanner mirror reflect laser beams for two colors.
Page 33: Image Formation System
Technical Reference > Image Formation System > Image Formation Process > Overview Image Formation System Image Formation Process Overview ■ Overview The image formation process of this machine is broadly classified into six blocks and ten The image formation system forms a toner image on paper. steps.
Page 34: Static Latent Image Formation Block
Technical Reference > Image Formation System > Image Formation Process > Static Latent Image Formation Block ■ ● Step 3: Laser Beam Exposure Static Latent Image Formation Block A static latent image is formed on the photosensitive drum by a laser beam. This block consists of three steps.
Page 35 Technical Reference > Image Formation System > Image Formation Process > Transfer Block ■ Development Block ■ Transfer Block In this block, toner is applied on the static latent image on the surface of the photosensitive This block consists of three steps. In this block, the toner image on the surface of the drum and visualized.
Page 36: Fixing Block
Technical Reference > Image Formation System > Image Formation Process > Fixing Block ● Step 6: Secondary Transfer ■ Fixing Block The toner on the ITB is transferred onto paper. In this block, a toner image is fixed to paper. A positive DC bias is applied to the secondary transfer outer roller to charge the paper positively.
Page 37: Itb Cleaning Block
Technical Reference > Image Formation System > Controls > High-voltage Power Supply Control ■ ITB Cleaning Block Controls In this block, cleaning is performed to remove waste toner on the surface of the ITB. High-voltage Power Supply Control ■ ● Overview ●...
Page 38 Technical Reference > Image Formation System > Controls > Calibration 2-10 ● ■ Generation of a Primary Charging Bias Calibration It is a negative DC bias output to charge the surface of the photosensitive drum with a ● Overview uniform negative potential as preparation for image formation. It is generated for each color (Y, Calibration is performed to correct color displacement and density change in an image M, C, Bk) by the primary charging bias generation circuit in lower high-voltage power supply caused by environmental changes and individual differences among host machines to print a...
Page 39 Technical Reference > Image Formation System > Controls > Calibration 2-11 Image color displacement measurement control is performed in the following conditions. When a specified time elapses after printing was completed • • • After the cartridge is replaced After the cartridge is replaced When the temperature of the sub thermistor is less than 50 degree C at the time when the When a specified number of sheets is printed after the cartridge was replaced •...
Page 40: Cartridge
Technical Reference > Image Formation System > Cartridge > Cartridge Life Detection 2-12 The inside of the cartridge consists of the following components. Cartridge • Photosensitive drum Overview ■ Developing assembly • • Primary charging roller The cartridge forms a visible image on the photosensitive drum with toner. The DC controller rotates the drum motor, and drives the photosensitive drum, developing Four types of cartridges are installed;...
Page 41 Technical Reference > Image Formation System > Cartridge > Developing Assembly Engagement/Disengagement Control 2-13 ■ Developing Assembly Engagement/Disengagement Control <All developing assemblies are engaged with the photosensitive drums> Photosensitive drum Developing This control is performed to engage/disengage the necessary developing assembly with/from disengagement cam the photosensitive drum according to the specified print mode (full color/monochrome).
Page 42: Itb Unit
Technical Reference > Image Formation System > ITB Unit > Overview 2-14 ITB Unit DC controller rotates the developing engagement motor and changes the direction of the engagement/disengagement cam to engage/disengage the developing assembly with/from Overview ■ the photosensitive drum. The ITB unit primarily transfers the toner image on the photosensitive drum onto the ITB.
Page 43 Technical Reference > Image Formation System > ITB Unit > Primary Transfer Roller Engagement/Disengagement Control 2-15 ■ Primary Transfer Roller Engagement/Disengagement Control Engagement/disengagement operation of the primary transfer roller is explained below. The drive force of the fixing motor is sent to the primary transfer roller disengagement cam This control is performed to engage the ITB with the necessary photosensitive drum by the primary transfer roller disengagement solenoid and rotates the cam.
Page 44 Technical Reference > Image Formation System > ITB Unit > ITB Cleaning Mechanism 2-16 ■ ITB Cleaning Mechanism ● Overview The ITB cleaner cleans the surface of the ITB. Waste toner on the surface of the ITB is removed by the cleaning blade mounted inside of the cleaner.
Page 45: Fixing System
Technical Reference > Fixing System > Various Controls > Speed Control with Small Size Paper (Throughput Down Control) 2-17 Fixing System Various Controls Speed Control with Small Size Paper (Throughput Down ■ Overview Control) Fixing control is performed to control the temperature of the fixing assembly. This control is the control to prevent the temperature at the edge of Fixing Heater from The on-demand fixing method is used in the fixing assembly of this machine.
Page 46 Technical Reference > Fixing System > Various Controls > Pressure Roller Pressure Release Control 2-18 ■ ■ Pressure Roller Pressure Release Control Fixing Temperature Control ● Overview This control is performed to prevent deformation of the fixing sleeve and pressure roller and improve jam removal performance by releasing pressure of the fixing roller at other time than Fixing temperature control is performed to keep the temperature of the surface of the fixing when printing is performed and when the machine is placed in the standby status.
Page 47 Technical Reference > Fixing System > Various Controls > Failure Detection 2-19 ■ <Thermo switch> Protection Function When the temperature of the fixing heater increased abnormally and the temperature of ● Overview the thermo switch reached the following condition, the contact point of the thermo switch This function blocks power distribution to the heater by detecting an abnormal temperature becomes opened and power distribution to the fixing heater is blocked.
Page 48 Technical Reference > Fixing System > Various Controls > Failure Detection 2-20 <Abnormal low temperature detection> When the following conditions are detected after each thermistor reached a specified temperature after the power was turned on, the DC controller judges that an abnormal low temperature occurred regardless of the fixing heater drive condition.
Page 49: Pickup Feeding System
Technical Reference > Pickup Feeding System > Overview 2-21 The schematic diagram of the motors, solenoids, and clutches is shown below. Pickup Feeding System : Duplex feed path Overview : Single-sided feed path Duplex flapper The pickup feeding system feeds and transports paper. The schematic diagram of the sensors is shown below.
Page 50: Pickup Feeding Assembly
Technical Reference > Pickup Feeding System > Pickup Feeding Assembly > Overview 2-22 The pickup feeding system is broadly classified into three blocks. Pickup Feeding Assembly 1. Pickup feeding assembly: From each pickup inlet to the fixing assembly inlet Overview ■...
Page 51 Technical Reference > Pickup Feeding System > Pickup Feeding Assembly > Cassette Presence Detection 2-23 ■ ■ Cassette Presence Detection Cassette Pickup Cassette pickup is performed to feed the paper in the cassette to inside of the machine one Cassette presence detection is performed by the cassette presence sensor. The cassette presence detection flag is detected by the cassette presence sensor mounted in by one.
Page 52: Lifting Operation
Technical Reference > Pickup Feeding System > Pickup Feeding Assembly > Cassette Paper Presence Detection 2-24 ■ ● Lift-down Operation Lifting Operation When the lifting plate is placed at the position where pickup can be performed, the paper is Lifting operation is classified into the lift-up operation, which lifts up the paper surface to the pressed to the cassette pickup roller.
Page 53 Technical Reference > Pickup Feeding System > Pickup Feeding Assembly > Multi-purpose Tray Pickup 2-25 ■ Cassette Double Feeding Prevention Mechanism ■ Multi-purpose Tray Pickup In this machine, the separation roller method is used as a mechanism to prevent double Multi-purpose tray pickup is performed to feed the paper on the multi-purpose tray into the feeding when paper is picked up from the cassette.
Page 54: Paper Feed
Technical Reference > Pickup Feeding System > Pickup Feeding Assembly > Paper Feed 2-26 ■ Paper Feed DC controller The paper fed from the cassette or multi-purpose tray is transported to the fixing/delivery assembly. The DC controller drives the pickup motor (M13) and drum motor 3 (M5), rotates the Secondary transfer outer roller registration roller, secondary transfer outer roller, and ITB unit to feed the paper.
Page 55 Technical Reference > Pickup Feeding System > Pickup Feeding Assembly > OHT Detection Mechanism 2-27 ■ Skew Correction Mechanism ■ OHT Detection Mechanism In this mechanism, paper skew can be corrected without decreasing throughput. Since the printing condition is changed in this machine depending on whether the paper is The operation in the skew correction mechanism is explained below.
Page 56: Fixing/Delivery Assembly
Technical Reference > Pickup Feeding System > Fixing/Delivery Assembly > Loop Control 2-28 Fixing/Delivery Assembly ■ Loop Control This control is performed to stabilize feeding of paper in front of the fixing assembly. Overview ■ When the feeding speed of the pressure roller is slower than that of the secondary transfer The fixing/delivery assembly consists of the fixing assembly, which fixes toner on the paper, outer roller, the paper is bent more significantly, and an image failure and paper wrinkle occur.
Page 57: Duplex Assembly
Technical Reference > Pickup Feeding System > Duplex Assembly > Duplex Pickup Operation 2-29 Duplex Assembly ■ Duplex Reverse/Duplex Feed Control This control is performed to execute duplex printing by reversing the paper of which the first Overview ■ side printing is completed and feeding it into the printer again. The duplex reverse assembly is placed at the upper side, and the duplex feed assembly is The reverse operation is performed by control of the duplex reverse motor (M11) and duplex placed at the right side of the host machine, which reverse/feed paper.
Page 58: Jam Detection
Technical Reference > Pickup Feeding System > Jam Detection > Wrapping Jam 2-30 Jam Detection ■ Pickup Delay Jam ● When Picked Up From The Cassette Overview ■ The leading edge of the paper cannot be detected by the TOP sensor (SR8) within a specified The following paper sensors are provided to detect the presence of paper and whether the time after the cassette pickup solenoid (SL4) is turned on.
Page 59: Residual Paper Jam
Technical Reference > Pickup Feeding System > Jam Detection > Door Open Jam 2-31 ■ Residual Paper Jam The presence of the paper is detected by the following sensors when the machine is turned on or the door is closed. Fixing delivery sensor (SR5) •...
Page 60: Controller System
Technical Reference > Controller System > DC Controller PCB > Overview 2-32 DC Controller PCB Controller System Overview ■ Overview The DC controller controls the operation sequence in this machine. The controller system controls all blocks following instructions received from the main controller.
Page 61 Technical Reference > Controller System > DC Controller PCB > Overview 2-33 Remarks Remarks Electrical parts Electrical symbol Name Electrical parts Electrical symbol Name Drum home position sensor 1 Power supply fan Photo interrupter Drum home position sensor 2 Cartridge fan Drum home position sensor 3 Delivery fan Fixing delivery sensor...
Page 62 Technical Reference > Controller System > DC Controller PCB > Failure Detection 2-34 ■ ■ Failure Detection Motor/Fan Control ● Overview ● Motor Failure Detection Fixing motor, Drum motor 1 - 3, Scanner motor (Y/M, C/Bk): This machine uses 11 motors for paper feed and image formation. It also has four fan motors When the following conditions are detected, the DC controller judges that a failure occurred in to prevent a temperature increase in the machine.
Page 63: Low-Voltage Power Supply
Technical Reference > Controller System > Low-voltage Power Supply > Safety 2-35 Low-voltage Power Supply The low-voltage power supply converts the supplied AC power into +24V, +5V, and +3.3V DC power supply, which is needed in the printer host machine. Overview ■...
Page 64 Technical Reference > Controller System > Low-voltage Power Supply > Low-voltage Power Supply Failure 2-36 ■ Power Supply Voltage Detection Function This function detects the voltage of the power supply connected with the printer. The DC controller detects whether the voltage of the power supply is 100V or 200V based on the output condition of the power supply voltage detection signal (PSTY100), and performs fixing control according to the detection result.
Page 65: Embedded Rds
Technical Reference > Embedded RDS > Settings Procedures > Advance Preparations 2-37 Embedded RDS Settings Procedures ■ Advance Preparations Overview To monitor the device with e-Maintenance/imageWARE Remote, the following settings are ■ Overview required. Embedded RDS (hereafter, E-RDS) is a network module embedded with customer's device (1) Advance Confirmation and enables e-Maintenance/ imageWARE Remote (Remote Diagnosis System), which can Confirm with the UGW administrator that the device to be monitored with e-Maintenance/...
Page 66 Technical Reference > Embedded RDS > Settings Procedures > Steps to E-RDS Settings 2-38 (3) Network Settings (1) Enabling Application Mode Based on the results of the information obtained in (2) Advance preparations, make the - Press an allow key and OK key simultaneously and shift to the servicemode (level-3 for device network related settings in accordance with the following procedures.
Page 67: Communication Log
Technical Reference > Embedded RDS > Settings Procedures > Communication Log 2-39 (3) Communication Test (COM-TEST) E-RDS E-RDS E-RDS SWITCH E-RDS SWITCH the Settings key to select "COM-TEST," then press key or OK key. E-RDS SWITCH E-RDS SWITCH - Press RGW-ADDRESS RGW-ADDRESS The communication test with the UGW is carried out only by this operation.
Page 68: Faq
Technical Reference > Embedded RDS > FAQ 2-40 ■ Initializing E-RDS Settings It is possible to return the E-RDS settings to factory-shipments value as follows. Q1: Registration information of the e-Maintenance/ imageWARE Remote system is once deleted from the UGW, and is re-registered after that. If a communication test is not carried - NETWORK GR.
Page 69: Troubleshooting Guide
Technical Reference > Embedded RDS > Troubleshooting Guide > Error Message List 2-41 ■ Troubleshooting Guide Error Message List Details of the errors and their remedies are as described below. ■ Troubleshooting (The meaning of server indicates the UGW in this section) No.1 Remedy Error strings...
Page 70 Technical Reference > Embedded RDS > Troubleshooting Guide > Error Message List 2-42 Remedy Remedy Error strings Cause Error strings Cause Server certificate - The route certificate registered Due to network congestion, etc., If this error occurs when the Check that the device time and 16 Server response time with the device has expired.
Page 71: Service Cautions
Technical Reference > Embedded RDS > Service Cautions 2-43 Service Cautions After performing the following service actions, it is necessary to perform Service mode > NETWORK GR. > E-RDS > CLEAR, then perform the E-RDS settings. E-RDS > E-RDS SWITCH E-RDS >...
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Page 73: Disassembly And Assembly
Disassembly and Assembly ■ Introduction ■ External-related Issues Main Units ■ ■ Main Parts ■ PCB-related Issures Disassembly and Assembly...
Page 74: Points To Note During Disassembly And Assembly
Disassembly and Assembly > Introduction > Points to Note During Disassembly and Assembly Introduction Points to Note During Disassembly and Assembly Be sure to pay attention to the below points in performing disassembly and assembly. 1. In performing disassembly and assembly, for safety precaution be sure to disconnect the power plug. 2.
Page 75: Lay Out Drawing
Disassembly and Assembly > Introduction > Lay Out Drawing > External-related Issues Lay Out Drawing ■ External-related Issues Reference Number Name Upper front cover unit p. 3-11 Upper rear cover p. 3-14 Right rear cover p. 3-10 Control panel unit right cover p.
Page 76 Disassembly and Assembly > Introduction > Lay Out Drawing > Main Units ■ Main Units Reference Number Name Main drive unit p. 3-32 Secondary transfer unit p. 3-17 ITB unit p. 3-17 Fixing assembly p. 3-18 Registration unit p. 3-21 Waste toner container p.
Page 77 Disassembly and Assembly > Introduction > Lay Out Drawing > Main Units Reference Number Name Duplex drive unit p. 3-38 Delivery unit p. 3-36 Cassette pickup drive unit p. 3-29 Fixing drive unit p. 3-35 Lifter drive unit p. 3-24 Color displacement/density sensor unit p.
Page 78 Disassembly and Assembly > Introduction > Lay Out Drawing > Main Units Reference Number Name Multi-purpose tray pickup unit p. 3-40 Duplex feed roller unit p. 3-39 T-3-4 T-3-4 F-3-4 F-3-4 Disassembly and Assembly > Introduction > Lay Out Drawing > Main Units...
Page 79: Main Parts
Disassembly and Assembly > Introduction > Lay Out Drawing > Main Parts ■ Main Parts Reference Number Name Delivery fan p. 3-52 Cartridge fan p. 3-53 Developing disengagement motor p. 3-47 Drum motor 1 p. 3-50 Controller fan p. 3-56 Drum motor 2 p.
Page 80 Disassembly and Assembly > Introduction > Lay Out Drawing > PCB-related Issues ■ PCB-related Issues Reference Number Name DC controller PCB p. 3-62 ICB PCB p. 3-58 Low-voltage power unit p. 3-60 Environment sensor p. 3-66 Main controller PCB p. 3-58 Lower high voltage power supply PCB p.
Page 81: External-Related Issues
Disassembly and Assembly > External-related Issues > Removing Rear Cover > Removing the Rear Cover Removing Rear Cover External-related Issues Before Removing Rear Cover ■ Removing Left Cover 1) Remove the left cover.(Refer to page 3-9) 1) Remove the cassette. Removing the Rear Cover ■...
Page 82: Removing Right Rear Cover
Disassembly and Assembly > External-related Issues > Removing the Control Panel Unit Right Cover 3-10 Removing Right Rear Cover Removing the Control Panel Unit Right Cover Before Removing Right Rear Cover ■ 1) Open the front cover unit. 2) Open the right cover unit. 1) Remove the left cover.(Refer to page 3-9) 3) Remove the control panel unit right cover [1].
Page 83: Removing The Control Panel Unit Left Cover
Disassembly and Assembly > External-related Issues > Removing Upper Front Cover Unit > Removing the Upper Front Cover Unit 3-11 Removing the Control Panel Unit Left Cover Removing Upper Front Cover Unit Before Removing Control Panel Unit Left Cover ■ ■...
Page 84 Disassembly and Assembly > External-related Issues > Removing Upper Front Cover Unit > Removing the Upper Front Cover Unit 3-12 2) Slide the Upper Front Cover Unit [1] to the left and remove it. MEMO : 2 screws [2] (1 in left side, 1 in front side) •...
Page 85: Removing Control Panel Unit
Disassembly and Assembly > External-related Issues > Removing Control Panel Unit > Removing Control Panel Unit 3-13 Removing Control Panel Unit 2) Remove the connector [1] Before Removing Control Panel Unit ■ 1) Remove the control panel unit right cover.(Refer to page 3-10) 2) Remove the left cover.(Refer to page 3-9) 3) Remove the control panel unit left cover.(Refer to page 3-11) 4) Remove the upper front cover unit.(Refer to page 3-11)
Page 86: Removing Upper Rear Cover
Disassembly and Assembly > External-related Issues > Removing the Front Cover Unit 3-14 Removing Upper Rear Cover Removing the Front Cover Unit Before Removing the Upper Rear Cover ■ 1) Open the front cover unit. 2) Remove the front cover unit [1]. 1) Remove the rear cover.(Refer to page 3-9) 2 screws [2] •...
Page 87: Removing Front Right Cover
Disassembly and Assembly > External-related Issues > Removing Front Right Cover > Removing Front Right Cover 3-15 Removing Front Right Cover 2) Remove the front right cover [1]. 2 screws [2] • Before Removing Front Right Cover ■ 2 claws [3] •...
Page 88: Removing The Right Cover Unit
Disassembly and Assembly > External-related Issues > Removing the Right Cover Unit 3-16 Removing the Right Cover Unit 4) Remove the right cover unit [1]. 2 screws [2] • 1) Open the right cover unit. • 2 connectors [3] 2) Close the secondary transfer unit [1], and remove the cover [2]. 3 screws [3] •...
Page 89: Main Units
Disassembly and Assembly > Main Units > Removing ITB Unit 3-17 Main Units Removing ITB Unit 1) Open the right cover unit. Removing Secondary Transfer Unit 2) Press the arm [1] downward, and lift down the secondary transfer unit [2]. 1) Open the right cover unit.
Page 90: Removing Fixing Assembly
Disassembly and Assembly > Main Units > Removing Fixing Assembly 3-18 Removing Fixing Assembly 4) Pinch to the left and right grip [1], and remove the ITB unit [2]. Caution : Since the Fixing Assembly is in high temperature just after the power OFF, make sure to leave it until it cools down before remove it.
Page 91: Removing Waste Toner Container
Disassembly and Assembly > Main Units > Removing Waste Toner Full Sensor Unit > Removing the Waste Toner Full Sensor Unit 3-19 Removing Waste Toner Container Removing Waste Toner Full Sensor Unit Before Removing Waste Toner Full Sensor Unit ■ 1) Open the front cover unit.
Page 92: Removing Waste Toner Feed Motor Unit
Disassembly and Assembly > Main Units > Removing Waste Toner Feed Motor Unit > Removing Waste Toner Feed Motor Unit 3-20 Removing Waste Toner Feed Motor Unit 2) Remove the waste toner full sensor unit [1]. 1 screw [2] (tapping screw) •...
Page 93: Removing Registration Unit
Disassembly and Assembly > Main Units > Removing Registration Unit > Removing Registration Unit 3-21 Removing Registration Unit 3) Remove 1 connector [1]. Before Removing Registration Unit ■ 1) Remove the secondary transfer unit.(Refer to page 3-17) 2) Remove the left cover.(Refer to page 3-9) 3) Remove the rear cover.(Refer to page 3-9) 4) Remove the right rear cover.(Refer to page 3-10) 5) Remove the Power Fan.(Refer to page 3-44)
Page 94 Disassembly and Assembly > Main Units > Removing Registration Unit > Removing Registration Unit 3-22 2) Remove the of the DC controller PCB. 4) Open the feed guide [1]. 2 claws [2] • F-3-45 F-3-45 3) Remove the cover [1]. F-3-47 F-3-47 1 screw [2]...
Page 95: Removing Color Displacement/Density Sensor Unit
Disassembly and Assembly > Main Units > Removing Color Displacement/Density Sensor Unit > Removing Color Displacement/Density Sensor Unit 3-23 Removing Color Displacement/Density Sensor Unit 2) Remove the harness from the harness guide [1], and remove the color displacement/ density sensor unit [2]. Before Removing Color Displacement/Density Sensor Unit ■...
Page 96: Removing Lifter Drive Unit
Disassembly and Assembly > Main Units > Removing Lifter Drive Unit > Removing Lifter Drive Unit 3-24 Removing Lifter Drive Unit 2) Remove the lifter drive unit [1]. 5 screws [2] • Before Removing Lifter Drive Unit ■ 1 claw [3] •...
Page 97: Removing Laser Scanner Unit
Disassembly and Assembly > Main Units > Removing Laser Scanner Unit > Removing Y/M Laser Scanner Unit 3-25 Removing Laser Scanner Unit 2) Remove the cover [1]. 1 screw [2] • Before Removing Laser Scanner Unit ■ 1) Remove the left cover.(Refer to page 3-9) 2) Remove the rear cover.(Refer to page 3-9) 3) Remove the right rear cover.(Refer to page 3-10) 4) Remove the ICB PCB.(Refer to page 3-58)
Page 98 Disassembly and Assembly > Main Units > Removing Laser Scanner Unit > Removing Y/M Laser Scanner Unit 3-26 4) Pull out and slide the Y/M Laser Scanner Unit [1] to the right and remove the left shaft [2] Points to note at installation : to remove the unit.
Page 99 Disassembly and Assembly > Main Units > Removing Laser Scanner Unit > Removing C/Bk Laser Scanner Unit 3-27 ■ Removing C/Bk Laser Scanner Unit 4) Remove the 2 screws [1] under the front cover unit. 1) Remove the Y/M laser scanner unit. 2) Remove the lifter drive unit.
Page 100 Disassembly and Assembly > Main Units > Removing Laser Scanner Unit > Removing C/Bk Laser Scanner Unit 3-28 6) Remove the cover [1]. 7) Remove the spring [1]. 2 screws [2] • 1 claw [3] • F-3-63 F-3-63 8) Remove the shaft [1] in the left side, remove the C/Bk scanner unit [2]. •...
Page 101: Removing Cassette Pickup Drive Unit
Disassembly and Assembly > Main Units > Removing Cassette Pickup Drive Unit > Removing Cassette Pickup Drive Unit 3-29 Removing Cassette Pickup Drive Unit Points to note at installation : Before Removing Cassette Pickup Drive Unit Make sure to adjust the position by inserting the protrusion [1] of Laser Scanner Unit ■...
Page 102 Disassembly and Assembly > Main Units > Removing Cassette Pickup Drive Unit > Removing Cassette Pickup Drive Unit 3-30 2) Remove the harness guide [1] by sliding it. 4) Remove the high-voltage PCB mount [1]. 1 claw [2] 2 screws [2] •...
Page 103: Removing Cassette Pickup Unit
Disassembly and Assembly > Main Units > Removing Cassette Pickup Unit > Removing Cassette Pickup Unit 3-31 Removing Cassette Pickup Unit 2) Remove the cassette pickup unit [1]. 2 screws [2] • Before Removing Cassette Pickup Unit ■ 1) Remove the left cover.(Refer to page 3-9) 2) Remove the rear cover.(Refer to page 3-9) 3) Remove the right rear cover.(Refer to page 3-10) 4) Remove the secondary transfar unit.(Refer to page 3-17)
Page 104: Removing The Main Drive Unit
Disassembly and Assembly > Main Units > Removing the Main Drive Unit > Removing the Main Drive Unit 3-32 Removing the Main Drive Unit 2) Remove the harness [1] and remove the high voltage contact point assembly [2]. 1 screw [3] •...
Page 105 Disassembly and Assembly > Main Units > Removing the Main Drive Unit > Removing the Main Drive Unit 3-33 4) Remove the flat cable [1] from the harness guide[2]. 7) Remove the developing disengagement motor [1]. 5) Remove the harness guide [3]. 2 screws [2] •...
Page 106 Disassembly and Assembly > Main Units > Removing the Main Drive Unit > How to Check the Phase of Main Drive Unit Cam 3-34 ■ How to Check the Phase of Main Drive Unit Cam Points to note when installing the main drive unit : 1) Check the positions of 4 cams [1].
Page 107: Removing The Fixing Drive Unit
Disassembly and Assembly > Main Units > Removing the Fixing Drive Unit > Removing the Fixing Drive Unit 3-35 Removing the Fixing Drive Unit ■ Removing the Fixing Drive Unit 1) Remove the harness [1]. Before Removing the Fixing Drive Unit ■...
Page 108: Removing The Delivery Unit
Disassembly and Assembly > Main Units > Removing the Delivery Unit > Before Removing the Delivery Unit 3-36 Removing the Delivery Unit 4) Remove the cover [1]. 1 screw [2] • Before Removing the Delivery Unit ■ 1) Remove the left cover.(Refer to page 3-9) 2) Remove the rear cover.(Refer to page 3-9) 3) Remove the ITB unit.(Refer to page 3-17) 4) Remove the fixing assembly.(Refer to page 3-18)
Page 109 Disassembly and Assembly > Main Units > Removing the Delivery Unit > Removing the Delivery Unit 3-37 ■ Removing the Delivery Unit 3) Remove the gear [1]. 1 claw [2] • 1) Remove the guide [1]. 2 screws [2] • F-3-90 F-3-90 4) Turn and remove the shaft support [1].
Page 110: Removing The Duplex Drive Unit
Disassembly and Assembly > Main Units > Removing the Duplex Drive Unit > Before Removing the Duplex Drive Unit 3-38 Removing the Duplex Drive Unit 5) Remove the delivery unit [1]. • 1 connector [2] Before Removing the Duplex Drive Unit ■...
Page 111 Disassembly and Assembly > Main Units > Removing the Duplex Feed Roller Unit 3-39 Removing the Duplex Feed Roller Unit ■ Removing the Duplex Drive Unit 1) Remove the duplex drive unit [1]. 1) Open the right cover unit. • 2 connectors [2] 2) Remove the duplex feed guide [1].
Page 112: Removing The Multi-Purpose Tray Pickup Unit
Disassembly and Assembly > Main Units > Removing the Multi-purpose Tray Pickup Unit > Removing the Multi-purpose Tray Pickup Unit 3-40 Removing the Multi-purpose Tray Pickup Unit 3) Remove the 2 springs [1]. Before Removing the Multi-purpose Tray Pickup Unit ■...
Page 113 Disassembly and Assembly > Main Units > Removing the Multi-purpose Tray Pickup Unit > Removing the Multi-purpose Tray Pickup Unit 3-41 5) Remove the shaft [1] from the shaft support [2] in 2 places and remove the feed unit cover 7) Remove the spring [1] and the gear [2].
Page 114 Disassembly and Assembly > Main Units > Removing the Multi-purpose Tray Pickup Unit > Removing the Multi-purpose Tray Pickup Unit 3-42 9) Disengage the plate [1] from the boss and slide the multi-purpose tray pickup unit [2] in the direction of the arrow. F-3-105 3-42 Disassembly and Assembly >...
Page 115: Main Parts
Disassembly and Assembly > Main Parts > Removing the Cassette Pickup Roller > Removing the Cassette Pickup Roller 3-43 4) Shift it upward and remove the Cassette Pickup Roller [1]. Main Parts Removing the Cassette Pickup Roller ■ Before Removing the Cassette Pickup Roller 1) Open the Front Cover Unit.
Page 116: Removing The Cassette Separation Roller Assembly
Disassembly and Assembly > Main Parts > Removing the Power Fan > Removing the Power Fan 3-44 Removing the Cassette Separation Roller Assembly Removing the Power Fan Before Removing the Power Fan 1) Remove the cassette. ■ 1) Remove the left cover.(Refer to page 3-9) Caution : 2) Remove the rear cover.(Refer to page 3-9) Do not touch the roller surface [1] of the manual separation roller unit.
Page 117 Disassembly and Assembly > Main Parts > Removing the Power Fan > Removing the Power Fan 3-45 2) Remove the 6 connectors [1]. 4) Remove the connector [1] and the screw [2]. F-3-112 F-3-114 3) Remove the harness [2] from the harness guide [1]. 5) Remove the power fan [1].
Page 118: Removing The Fan Unit
Disassembly and Assembly > Main Parts > Removing the Fan Unit > Removing the Fan Unit 3-46 Removing the Fan Unit 2) Remove the plate [1]. 4 screws [2] • Before Removing the Fan Unit ■ 1) Remove the left cover.(Refer to page 3-9) 2) Remove the rear cover.(Refer to page 3-9) 3) Remove the right rear cover.(Refer to page 3-10) 4) Remove the ICB PCB.(Refer to page 3-58)
Page 119: Removing The Developing Disengagement Motor
Disassembly and Assembly > Main Parts > Removing the Developing Disengagement Motor > Removing the Developing Disengagement Motor 3-47 Removing the Developing Disengagement Motor 4) Slide the fan unit [1] in the direction of the arrow and remove it. 2 claws [2] •...
Page 120: Removing The Secondary Transfer Outer Roller Unit
Disassembly and Assembly > Main Parts > Removing the Secondary Transfer Outer Roller Unit 3-48 Removing the Secondary Transfer Outer Roller Unit 3) Hold the both sides [1] of the Secondary Transfer Outer Roller Unit and remove it in the direction of the arrow.
Page 121: Removing The Pickup Motor
Disassembly and Assembly > Main Parts > Removing the Pickup Motor > Removing the Pickup Motor 3-49 Removing the Pickup Motor 2) Remove the pickup motor [1]. 2 screws [2] • Before Removing the Pickup Motor ■ • 1 connector [3] 1) Remove the left cover.(Refer to page 3-9) 2) Remove the rear cover.(Refer to page 3-9) 3) Remove the right rear cover.(Refer to page 3-10)
Page 122: Removing The Drum Motor
Disassembly and Assembly > Main Parts > Removing the Drum Motor 2 > Removing the Drum Motor 2 3-50 Removing the Drum Motor 1 Removing the Drum Motor 2 Before Removing the Drum Motor 1 Before Removing the Drum Motor 2 ■...
Page 123: Removing The Fixing Motor
Disassembly and Assembly > Main Parts > Removing the Fixing Motor > Removing the Fixing Motor 3-51 Removing the Drum Motor 3 Removing the Fixing Motor Before Removing the Drum Motor 3 ■ ■ Before Removing the Fixing Motor 1) Remove the left cover.(Refer to page 3-9) 1) Remove the left cover.(Refer to page 3-9) 2) Remove the rear cover.(Refer to page 3-9) 2) Remove the rear cover.(Refer to page 3-9)
Page 124: Removing The Delivery Fan
Disassembly and Assembly > Main Parts > Removing the Delivery Fan > Removing the Delivery Fan 3-52 Removing the Delivery Fan 2) Remove the delivery fan [1]. • 1 connector [2] Before Removing the Delivery Fan ■ 1) Remove the left cover.(Refer to page 3-9) 2) Remove the rear cover.(Refer to page 3-9) 3) Remove the right rear cover.(Refer to page 3-10) 4) Remove the ICB PCB.(Refer to page 3-58)
Page 125: Removing The Cartridge Fan
Disassembly and Assembly > Main Parts > Removing the Cartridge Fan > Removing the Cartridge Fan 3-53 Removing the Cartridge Fan 2) Remove the cartridge fan [1]. • 1 connector [2] Before Removing the Cartridge Fan ■ 1) Remove the left cover.(Refer to page 3-9) 2) Remove the rear cover.(Refer to page 3-9) 3) Remove the right rear cover.(Refer to page 3-10) 4) Remove the ICB PCB.(Refer to page 3-58)
Page 126: Removing The Multi-Purpose Tray Pickup Roller
Disassembly and Assembly > Main Parts > Removing the Multi-purpose Tray Pickup Roller 3-54 Removing the Multi-purpose Tray Pickup Roller 3) Open the pickup roller retainer [1] to the right and left and remove the multi-purpose tray pickup roller [2] in the direction of the arrow. Caution : Do not touch the roller surface [1] of the multi-purpose tray pickup roller.
Page 127: Removing The Multi-Purpose Tray Separation Pad
Disassembly and Assembly > Main Parts > Removing the Multi-purpose Tray Separation Pad 3-55 Removing the Multi-purpose Tray Separation Pad 3) Insert the precision screwdriver into the clearance [2] of the multi-purpose tray separation pad [1]. Turn the precision screwdriver and remove the multi-purpose tray separation pad [1] from the multi-purpose tray separation pad holder [3].
Page 128: Removing The Controller Fan
Disassembly and Assembly > Main Parts > Removing the Controller Fan > Removing the Controller Fan 3-56 Removing the Controller Fan Points to note when installing the parts : Before Removing the Controller Fan At installation, make sure to insert the protrusion [2] on the back of [1] into the hole of ■...
Page 129 Disassembly and Assembly > Main Parts > Removing the Controller Fan > Removing the Controller Fan 3-57 2) Remove the plate [1]. Points to note at installation : • 1 connector [2] When installing the controller fan, be careful of the installation direction. 5 screws [3] •...
Page 130: Pcb-Related Issures
Disassembly and Assembly > PCB-related Issures > Removing the Main Controller PCB > Removing the Main Controller PCB 3-58 Removing the Main Controller PCB PCB-related Issures Before Removing the Main Controller PCB ■ Removing the ICB PCB 1) Remove the left cover.(Refer to page 3-9) ■...
Page 131 Disassembly and Assembly > PCB-related Issures > Removing the Main Controller PCB > Removing the Main Controller PCB 3-59 2) Remove the harness [1]. MEMO : • 7 connectors [2] SW4(push SW) is not used for service use. 1 flat cable [3] •...
Page 132: Removing The Low Voltage Power Unit
Disassembly and Assembly > PCB-related Issures > Removing the Low Voltage Power Unit > Removing the Low Voltage Power Unit 3-60 Removing the Low Voltage Power Unit 2) Remove the cable from the 2 wire saddles [1]. 3) Remove the reuse band [2]. Before Removing the Low Voltage Power Unit ■...
Page 133 Disassembly and Assembly > PCB-related Issures > Removing the Low Voltage Power Unit > Removing the Low Voltage Power Unit 3-61 5) Remove the plate [1]. 7) Remove the controller mount [1]. 2 screws [2] 8 screws [2] • • F-3-157 F-3-159 6) Remove the plate [1].
Page 134: Removing The Dc Controller Pcb
Disassembly and Assembly > PCB-related Issures > Removing the DC Controller PCB > Removing the DC Controller PCB 3-62 Removing the DC Controller PCB 2) Remove all the connectors on the DC controller PCB. • 23 connectors Before Removing the DC Controller PCB ■...
Page 135: Removing The Lower High Voltage Power Supply Pcb
Disassembly and Assembly > PCB-related Issures > Removing the Lower High Voltage Power Supply PCB > Removing the Lower High Voltage Power Supply PCB 3-63 Removing the Lower High Voltage Power Supply PCB 2) Remove the connector [1] and the flat cable.[2] Before Removing the Lower High Voltage Power Supply PCB ■...
Page 136 Disassembly and Assembly > PCB-related Issures > Removing the Lower High Voltage Power Supply PCB > Removing the Lower High Voltage Power Supply PCB 3-64 4) Remove the lower high voltage power supply PCB.[1] Note at installation : • 3 holder caps [2] When installing the lower high voltage power supply PCB [1] to the host machine, make 5 claws [3] •...
Page 137: Removing The Upper High Voltage Power Supply Pcb
Disassembly and Assembly > PCB-related Issures > Removing the Upper High Voltage Power Supply PCB > Removing the Upper High Voltage Power Supply PCB 3-65 Removing the Upper High Voltage Power Supply PCB Before Removing the Upper High Voltage Power Supply PCB ■...
Page 138: Removing The Environment Sensor
Disassembly and Assembly > PCB-related Issures > Removing the Environment Sensor > Removing the Environment Sensor 3-66 Removing the Environment Sensor 4) Remove the upper high voltage power supply PCB [1]. 3 screws [2] • Before Removing the Environment Sensor ■...
Page 139: Maintenance And Inspection
Maintenance and Inspection ■ Periodically Replaced Parts ■ Consumable Parts ■ Periodical Service ■ Cleaning Maintenance and Inspection...
Page 140: Consumable Parts
Maintenance and Inspection > Periodical Service > Periodical Service Periodically Replaced Parts Periodical Service Periodically Replaced Parts Periodical Service No periodically replaced parts exist in this machine. No periodical service is needed for this machine. Consumable Parts Consumable Parts Replaced by Users There is a possibility that replacement of parts is needed due to deterioration or damage at least more than once during the product's warranty period.
Page 141: Cleaning
Maintenance and Inspection > Cleaning > Cleaning Item [1] [2] Cleaning Cleaning Item Performed by Area to be cleaned Cleaning procedure User Execute "Utility > Cleaning". Fixing sleeve User Outside of the printer, Vent Wring the water out of a soft cloth moistened with water or watered-down mild detergent, and remove dirt with it.
Page 142 Blank Page...
Page 143: Troubleshooting
Troubleshooting ■ Corrective Actions Standard/Adjustment ■ ■ Outline of Electrical Components ■ Connector Layout Drawing ■ Service Tools ■ Error Code ■ Version Up ■ Service Mode ■ Special Administrator Mode Troubleshooting...
Page 144: Image Failure
Troubleshooting > Corrective Actions > Image Failure > Low Density (2) ■ Low Density (2) Corrective Actions The density of all specific colors in the printed image is obviously low. Image Failure ■ Low Density (1) The density of the entire printed image is obviously low.
Page 145 Troubleshooting > Corrective Actions > Image Failure > Polka-dot Pattern ■ High Density ■ Coal-black/Solid Color Image The density of printed image is obviously high. An inky-black or solid color image is printed. F-5-3 F-5-3 F-5-5 F-5-5 Cause Action Cause Action Replace the color displacement/density sensor unit.
Page 146: White Vertical Line
Troubleshooting > Corrective Actions > Image Failure > White Vertical Line (2) ■ Dirt on the Backside ■ White Vertical Line (1) Dirt is attached on the backside of the paper. White vertical lines are printed in a specific color. F-5-7 F-5-7 Cause...
Page 147 Troubleshooting > Corrective Actions > Image Failure > Dropout of a Specific Color ■ ■ Dropout of a Specific Color Horizontal Line Horizontal lines are printed. F-5-11 F-5-11 F-5-13 F-5-13 An image is printed in which a specific color is dropped. Cause Action Cause...
Page 148 Troubleshooting > Corrective Actions > Image Failure > Color Displacement ■ ■ Color Displacement White Patch An image with white patches is printed. An image in which color is displaced is printed. F-5-14 F-5-14 F-5-16 F-5-16 Cause Action Cause Action 1) Deformation/deterioration of the secondary Replace the secondary transfer outer roller.
Page 149: Skewed Image
Troubleshooting > Corrective Actions > Image Failure > Skewed Image ■ ■ Image Trouble Wrinkle/Bend at the Leading Edge There is wrinkle or bend at the leading edge of the A fading image or trouble image is printed. delivered paper. F-5-19 F-5-19 F-5-17...
Page 150 Troubleshooting > Corrective Actions > Image Failure > Interval of Dirt or White Patches on the Image ■ Dirt Dirt is attached on the printing surface. F-5-21 F-5-21 Cause Action 1) Dirt on the photosensitive drum Replace the cartridge. 2) Dirt on the fixing sleeve/pressure roller Execute pressure roller cleaning specification in the multi-purpose mode.
Page 151: Standard/Adjustment
Troubleshooting > Standard/Adjustment > Adjustment of the Image Formation System > When Replacing the ITB Unit Standard/Adjustment Adjustment of the Image Formation System When Replacing the ITB Unit ■ Test Print Clear the counter value using the following service mode after replacing the ITB. ■...
Page 152: Adjustment Of The Fixing Assembly
Troubleshooting > Standard/Adjustment > Adjustment of the Fixing Assembly > Checking the Pressure Volume (Nip Volume) of the Pressure Roller 5-10 Adjustment of the Fixing Assembly When Replacing the Fixing Assembly ■ Clear the counter value using the following user mode and service mode after replacing the Paper feed direction Center of fixing assembly.
Page 153 Troubleshooting > Standard/Adjustment > Adjustment of Electrical Parts > Replacing the Main Controller PCB 5-11 Adjustment of Electrical Parts When Replacing the DC Controller PCB ■ Information of the NVRAM mounted on the DC controller PCB is saved in the NVRAM on the main controller PCB.
Page 154: Outline Of Electrical Components
Troubleshooting > Outline of Electrical Components > Sensor 5-12 Outline of Electrical Components Sensor SR15 SR14 SR11 SR17 SR13 SR22 SR20 SR21 F-5-26 F-5-26 F-5-25 F-5-25 Symbol Parts name Symbol Parts name Symbol Parts name Symbol Parts name SR17 Fixing delivery sensor Primary transfer roller disengagement Drum home position sensor 1 Fixing pressure release sensor...
Page 155 Troubleshooting > Outline of Electrical Components > Clutch/Solenoid 5-13 Motor Clutch/Solenoid F-5-27 F-5-27 F-5-28 F-5-28 Symbol Parts name Symbol Parts name Duplex re-pickup clutch Fixing motor Drum motor 1 Primary transfer roller disengagement solenoid Drum motor 2 Duplex reverse solenoid Drum motor 3 Multi-purpose tray pickup solenoid Lifter motor...
Page 156 Troubleshooting > Outline of Electrical Components > LED/Heater/Thermistor/Switch 5-14 LED/Heater/Thermistor/Switch LED5 LED6 LED7 LED1 LED8 LED2 LED3 LED4 F-5-29 F-5-29 Symbol Parts name Power supply fan Cartridge fan F-5-30 F-5-30 Delivery fan Symbol Parts name Symbol Parts name Controller fan LED1 Front side pre-exposure LED 1 Sleeve thermistor...
Page 157: Pcb
Troubleshooting > Outline of Electrical Components > PCB 5-15 UN37 UN36 UN23 UN35 UN40 UN42 UN12 UN13 UN25 UN14 UN10 UN28 UN11 UN26 F-5-31 F-5-31 F-5-32 F-5-32 Symbol Parts name Symbol Parts name Low-voltage power supply PCB UN11 Bk memory tag relay PCB Upper high-voltage power supply PCB UN12 Y memory tag relay PCB...
Page 158 Troubleshooting > Outline of Electrical Components > PCB 5-16 UN30 UN39 UN46 UN45 F-5-33 F-5-33 Symbol Parts name UN30 Waste toner full level sensor PCB UN39 Control panel PCB UN45 Color displacement/density sensor PCB 1 UN46 Color displacement/density sensor PCB 2 T-5-31 T-5-31 5-16...
Page 159: Connector Layout Drawing
Troubleshooting > Connector Layout Drawing > Connector List 5-17 Connector Layout Drawing Connector List J118 J262 J90 J85 J501 J503 J780 J130 J701 J351 J350 J702 J352 F-5-35 F-5-35 F-5-34 F-5-34 5-17 Troubleshooting > Connector Layout Drawing > Connector List...
Page 160 Troubleshooting > Connector Layout Drawing > Connector List 5-18 Main controller J304 J143 J100 J101 DC controller J116 J201 J202 (J70) J262 J114 J119 (J261) J261 J251 F-5-37 F-5-37 F-5-36 F-5-36 5-18 Troubleshooting > Connector Layout Drawing > Connector List...
Page 161 Troubleshooting > Connector Layout Drawing > Connector List 5-19 J126 J4 J81 J3 F-5-38 F-5-38 5-19 Troubleshooting > Connector Layout Drawing > Connector List...
Page 162: Service Tools
Troubleshooting > Service Tools > List of Solvents/Greases 5-20 Service Tools List of Solvents/Greases Remarks Name Purpose Standard Tools Do not put it near fire. • Alcohol Cleaning • e.g. Plastic (Note) Purchase it at the site. Purpose/Remarks Rubbers Tool name Tool No.
Page 163: Error Code
Troubleshooting > Error Code > Error Code Details 5-21 Error Code Detection details Code Action 0003 Yellow drum motor error (Failure in drum • E012 Check the contact of the connector between the drum motor (J515) and motor rotation) Error Code Details the DC controller PCB (J81).
Page 164 Troubleshooting > Error Code > Error Code Details 5-22 Detection details Detection details Code Action Code Action • E014 0001 Fixing motor rotation error Check the contact of the connector E06F between the fixing motor (J516) and The motor rotated out of the target 0068 EEPROM access failure Replace the EEPROM.
Page 165 Troubleshooting > Error Code > Error Code Details 5-23 Detection details Detection details Code Action Code Action DC controller memory failure 0004 Printer communication error (Undefined Turn on the power again. • E198 E733 Replace the DC controller PCB. • command error) •...
Page 166: Jam Code
Troubleshooting > Error Code > Jam Code 5-24 Detection details Jam Code Code Action E806 0001 Delivery fan error Jam code Cause Jammed paper position Upper digits Lower digits E808 Pickup delay jam 1 0001 Low-voltage power supply failure Pickup delay jam 2 Drum phase control sensor failure warning E825 Pickup delay jam 3...
Page 167: Alarm Code
Troubleshooting > Error Code > Alarm Code 5-25 Alarm Code Alarm code/ Description Location code/ Location LEVEL FFFF 05 Transfer System, Copier 0001 06 Fixing System, Copier 0002 Fixing upper roller Fixing upper roller alarm alarm 11 Drum Cleaner System, Copier 0001 Waste toner box full Waste toner box full Waste Toner Collecting system...
Page 168: Version Up
Troubleshooting > Version Up > Preparation > Necessary System Environment 5-26 Version Up Preparation ■ Necessary System Environment Overview OS (Any of the following) • ■ Overview of Upgrading Microsoft Windows 2000 Server/Professional Japanese Edition • Microsoft Windows XP Professional/Home Edition Japanese Edition* •...
Page 169: Downloading The System Software
Troubleshooting > Version Up > Downloading the System Software > Downloading the System 5-27 Downloading the System Software ■ Before Downloading the System Software Downloading the System 1) Start up the PC. ■ 2) Connect the host machine and the PC with a USB cable. ●...
Page 170 Troubleshooting > Version Up > Downloading the System Software > Downloading the System 5-28 3) Click the "Next" button. 5) Click the "Start" button. F-5-42 F-5-42 F-5-44 F-5-44 4) Select the USB connection device, and click the "Next" button. 6) When the warning screen is displayed, click the "Yes" button. F-5-45 F-5-45 F-5-43...
Page 171 Troubleshooting > Version Up > Downloading the System Software > Downloading the System 5-29 7) When downloading is completed, click the "OK" button. The host machine automatically restarts up. F-5-47 F-5-47 8) Perform common status print via the user mode, and make sure that the firmware version matches the information written down in Procedure 2).
Page 172: Service Mode
Troubleshooting > Service Mode > Service Mode List > OPTION GR. 5-30 ■ OPTION GR. Service Mode Description Item Setting range Service Mode List B4-L-CNT Set to determine B4 size to be large size or small size. ON / OFF ON: B4 size is to be large size.
Page 173 Troubleshooting > Service Mode > Service Mode List > F/W UPDATE GR. 5-31 ■ FUNCTION GR. ■ LOG GR. Description Description Item Setting range Item Setting range EXPORT GENERAL/ ECONF Export the device setting data. SYSTEM LOG Make a setting of the system log function. / OFF DEPEND/ SUBLOG FTP GET Sub log is collected without using the serial consol.
Page 174 SNMP search broadcast packet is not provided. When any error occurs, the time, error code and error 3: Wake Up function using the old Canon utility is information are displayed. Up to 5 logs can be stored and enabled. Wake Up function with the new protocol the latest log is displayed.
Page 175 Troubleshooting > Service Mode > Service Mode List > SP.ADMIN.MODE 5-33 ■ SP.ADMIN.MODE Description Item Setting range This item is displayed only when “Maintenance Code” is MAINTENANCE ---- not set. By entering the Maintenance Code here, the menu item in the Special Administration Mode can be displayed. T-5-45 T-5-45 5-33...
Page 176: Special Administrator Mode
Troubleshooting > Special Administrator Mode 5-34 Special Administrator Mode Maintenance code Special Administrator Mode Re-transfer prevention specification 9208 ■ Overview 1425 Assigned for hot offset prevention 2528 Assigned for OHT permeability improvement Special administrator mode is the mode prepared for users to solve problems by themselves. 4241 Assigned for B&W printer mode However, the information regarding this mode is not disclosed to users.
Page 177: Appendix
Appendix ■ General Timing Chart ■ General Circuit Diagram ■ Signal Input/Output List...
Page 178 Appendix > General Timing Chart General Timing Chart Print command Operation INTR PRINT LSTR STBY STBY Cassette pickup solenoid TOP sensor Fixing delivery sensor Fixing motor Scanner motor TOP signal Drum motor 1 Drum motor 2 Drum motor 3 Pickup motor Primary charging bias Y Primary charging bias M Primary charging bias C...
Page 179: General Circuit Diagram (1/2)
General Circuit Diagram General Circuit Diagram (1/2) F-6-2 F-6-2...
Page 180: General Circuit Diagram (2/2)
General Circuit Diagram (2/2) F-6-3 F-6-3...
Page 181: Signal Input/Output List
Appendix > Signal Input/Output List Signal Input/Output List Connector Abbreviation Logic Signal name AWAKE J105 (Not in use) Connector Abbreviation Logic Signal name SGND J100 +24VA /BD1O Y BD signal Pulse +24VB /BD2O M BD signal Pulse PGND /BD3O C BD signal Pulse PGND /BD4O...
Page 182 Appendix > Signal Input/Output List Connector Abbreviation Logic Signal name Connector Abbreviation Logic Signal name J106 +24VA J109 +3.3VS SGND /SCN2ACC Scanner motor accelerating signal /SCN2DEC Scanner motor decelerating signal /TOPI TOP signal PGND SGND OHT_SNS +24VA Analog OHT detection signal 24VAFU3 /SCN4ACC Scanner motor accelerating signal...
Page 183 Appendix > Signal Input/Output List Connector Abbreviation Logic Signal name Connector Abbreviation Logic Signal name SGND J111 J113 +24VB /VDO42 PGND Bk video signal VDO42 Bk video signal +5VC LD4CTRL2 SGND Bk laser control signal LD4CTRL1 Bk laser control signal +24VB LD4CTRL0 PGND...
Page 184 Appendix > Signal Input/Output List Connector Abbreviation Logic Signal name Connector Abbreviation Logic Signal name /HVRESET J116 Pulse High-voltage IC reset signal J120 +24VA HVDALD Pulse High-voltage IC load signal +24VA HVDACLK PGND Pulse High-voltage IC clock signal HVDATA2 PGND Pulse High-voltage IC data signal 1TR1S...
Page 185 Appendix > Signal Input/Output List Connector Abbreviation Logic Signal name Connector Abbreviation Logic Signal name OHT_LED OHT sensor LED control signal J122 J127 +5VA PREEXP4 Bk pre-exposure LED control signal +3.3V J123 +3.3VS +5VA SGND PREEXP3 C pre-exposure LED control signal PAPOUT Fixing delivery detection signal +5VA...
Page 186 Appendix > Signal Input/Output List 6-10 Connector Abbreviation Logic Signal name Connector Abbreviation Logic Signal name J130 N.C. J137 WTMON Waste toner feed motor control signal N.C. WTMSNS Waste toner feed motor current signal RDSRGAIN0 SGND Color displacement/density sensor sensitivity signal (rear) RTSNS1 Y toner level detection signal RDSRGAIN1...
Page 187 Appendix > Signal Input/Output List 6-11 Connector Abbreviation Logic Signal name OUTA J140 Lifter motor control signal OUT/A Lifter motor control signal +3.3V SGND CSTSNS Cassette presence detection signal +3.3VS SGND CSTLUPS Cassette media surface detection signal +3.3VS SGND CSTPEND Cassette media presence detection signal 24VAFU2...
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