Canon 3370 Series Service Manual
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Canon 3370 Series Service Manual

Canon 3370 Series Service Manual

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Service Manual

LBP3310/3370 Series
Jan 25 2008
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Summary of Contents for Canon 3370 Series

  • Page 1: Service Manual

    Service Manual LBP3310/3370 Series Jan 25 2008...
  • 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: Symbols Used

    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 Features ..............................1- 1 1.1.1 Feature ..................................1- 1 1.2 System Construction ..........................1- 1 1.2.1 System Construction ............................... 1- 1 1.2.2 System Construction ............................... 1- 1 1.3 Product Specifications ..........................1- 1 1.3.1 Product Specifications ............................. 1- 1 1.3.2 Product Specifications .............................
  • Page 8 Contents 2.4.2.5 Fixing bias generation................................2- 13 2.4.2.6 Cartridge presence detection..............................2- 13 2.5 PICKUP AND FEEDING SYSTEM......................2- 13 2.5.1 Overview/Configuration............................2- 13 2.5.1.1 Outline....................................2- 13 2.5.2 Detecting Jams ..............................2- 14 2.5.2.1 Jam Detection Outline................................2- 14 2.5.2.2 Delay Jams .................................... 2- 15 2.5.2.3 Stationary Jams ..................................
  • Page 9 Contents 3.1.7.1 Removing the duplexing drive assembly ..........................3- 6 3.1.8 Operation Panel Unit ............................... 3- 7 3.1.8.1 Preparation for detaching the control panel ..........................3- 7 3.1.8.2 Detaching the control panel ..............................3- 7 3.1.8.3 Detaching the control panel ..............................3- 7 3.1.9 Engine controller board ............................
  • Page 10 Contents 3.5.2.1 Preparation for removing the fixing film unit........................... 3- 19 3.5.2.2 Removing the fixing film unit ..............................3- 19 3.5.3 Fixing Pressure Roller............................3- 20 3.5.3.1 Preparation for removing the fixing pressure roller ........................ 3- 20 3.5.3.2 Removing the fixing pressure roller ............................3- 20 Chapter 4 MAINTENANCE AND INSPECTION 4.1 Periodically Replaced Parts ........................
  • Page 11 Contents 6.1.4 Sensor ..................................6- 2 6.1.4.1 Sensor...................................... 6- 2 6.1.5 PCBs ..................................6- 3 6.1.5.1 PCB......................................6- 3...
  • Page 12 Contents...

  • Page 13: Chapter 1 Product Description

    Chapter 1 PRODUCT DESCRIPTION...
  • Page 15 Contents Contents 1.1 Features ..................................1-1 1.1.1 Feature......................................1-1 1.2 System Construction ..............................1-1 1.2.1 System Construction ..................................1-1 1.2.2 System Construction ..................................1-1 1.3 Product Specifications..............................1-1 1.3.1 Product Specifications ................................. 1-1 1.3.2 Product Specifications ................................. 1-2 1.4 Name of Parts.................................1-3 1.4.1 External View ....................................1-3 1.4.2 External View ....................................

  • Page 17: Features

    Chapter 1 1.1 Features 1.1.1 Feature 0018-3077 LBP3370 / LBP3310 1. Compact, high-speed and high-resolution printer Regardless of its compact size that enables an installation on side of desks, this printer realizes the printing speed of 21 pages per minute in letter-size paper with the resolution of 600 dpi.

  • Page 18: Product Specifications

    Chapter 1 Exposure method semiconductor laser Development method Toner projection development Transfer method by roller Separation method by curvature Cassette pickup method by pad Multifeeder pickup method by pad Drum cleaning method by blade Fixing method on-demand Delivery method face-down/face-up Toner supply type by toner cartridge 3k cartridge: about 3000 prints...

  • Page 19: Name Of Parts

    Chapter 1 Transfer method by roller Separation method by curvature Cassette pickup method by pad Multifeeder pickup method by pad Drum cleaning method by blade Fixing method on-demand Delivery method face-down/face-up Toner supply type by toner cartridge 3k cartridge: about 3000 prints 7k cartridge: about 7000 prints (A4, single-sided;...

  • Page 20: External View

    Chapter 1 F-1-3 [1] Manual feeder tray [7] Face-down Output Tray [2] Sub tray [8] Open Button [3] Extension tray [9] Control Panel [4] Paper guide [10] Right cover [5] Paper Cassette [11] Power Switch [6] Front Cover F-1-4 [1] Face-up Output Tray [4] Expansion Slot [2] Power Socket [5] USB Connector...

  • Page 21: Cross Sectional Views

    Chapter 1 [5] Paper Cassette [11] Power Switch [6] Front Cover F-1-6 [1] Face-up Output Tray [5] 10 Indicatotor [2] Power Socket [6] TX/RX Indicatotor [3] Left Cover [7] LAN Connector [4] 100 Indicatotor [8] USB Connector 1.4.3 Cross Sectional Views 0018-3085 LBP3370 / LBP3310 [19]...

  • Page 22: Using The Machine

    Chapter 1 [3] Laser/scanner unit [13] Duplex pick-up roller [4] Primary charging roller [14] Registration shutter [5] Developing cylinder [15] Transfer charging roller [6] Toner cartridge [16] Photosensitive drum [7] Feed roller [17] Duplex feed roller [8] Manual pickup roller [18] Pressure roller [9] Manual separation pad [19] Face-up delivery roller...
  • Page 23 Chapter 1 [1] Display Displays the printer status, messages, the items and setting values of the menu functions. [2] Job Indicator (Green) The printer is receiving print data, or any print data remains in the printer memory. Blinking: The printer is processing print data. Off: There is no print data in the printer memory.
  • Page 24 Chapter 1 Off: The printer cannot print.

  • Page 25: Chapter 2 Technical Reference

    Chapter 2 TECHNICAL REFERENCE...
  • Page 27 Contents Contents 2.1 Functional Configuration ...............................2-1 2.1.1 Outline......................................2-1 2.2 Basic Sequense................................2-1 2.2.1 Basic Operation Sequence ................................2-1 2.2.2 Power-on sequence ..................................2-1 2.3 LASER EXPOSURE SYSTEM.............................2-2 2.3.1 Overview/Configuration ................................2-2 2.3.1.1 Outline..........................................2-2 2.3.1.2 Laser Control Circuit.......................................2-3 2.3.2 Controlling the Laser Activation Timing............................. 2-5 2.3.2.1 Laser emission control ....................................2-5 2.3.2.2 Horizontal synchronous control ..................................2-5 2.3.3 Laser Control ....................................
  • Page 28 Contents 2.5.3 Cassette Pickup ..................................2-15 2.5.3.1 Cassette pick-up ......................................2-15 2.5.4 Multi-purpose Pickup................................. 2-16 2.5.4.1 Manual Fees pick-ip...................................... 2-16 2.5.5 Duplex Feeding..................................2-16 2.5.5.1 Outline .......................................... 2-16 2.5.5.2 Operation ........................................2-16 2.6 EXTERNAL AND CONTROLS SYSTEM ....................... 2-17 2.6.1 Fan......................................2-17 2.6.1.1 Fan motor control......................................

  • Page 29: Functional Configuration

    Chapter 2 2.1 Functional Configuration 2.1.1 Outline 0018-3088 LBP3370 / LBP3310 The machine may be broadly divided into the following 6 functional blocks: engine control system, laser exposure system, image formation system, pickup/trans- port/delivery system, fixing system, and externals/auxiliary control system. Laser exposure system Image formation system Pickup/transport/delivery system...

  • Page 30: Laser Exposure System

    Chapter 2 5) Main motor initial drive 6) Fixing heater initial drive Drive the fixing heater to reach the targeted temperature of 100 deg C 7) Scanner motor initial drive 8) High-voltage control Detect the presence of cartridge and clean the transfer charging roller after the primary charging AC bias is turned ON 9) Failure/Abnormality check Detect the scanner failure, the fixing unit failure, and the door open during this period 10) Memory tag communication...

  • Page 31: Laser Control Circuit

    Chapter 2 6) The two laser beams pass through the collimator lens and the cylindrical lens to strike the four-sided mirror, which is rotating at a constant speed. 7) The laser beam reflected by the four-sided mirror focuses on the photosensitive drum passing through the focus lens and the reflective mirror at the front of the four-sided mirror.
  • Page 32 Chapter 2 Engine Video Laser driver PCB controller PCB controller PCB J201 J801 VDO1 switching switching /VDO1 circuit circuit VDO2 /VDO2 Comparator Comparator Reference voltage IC201 C802 C803 Sample Sample hold circuit hold circuit CNT0 /CNT0 CNT1 /CNT1 Logic circuit CNT2 /CNT2 Laser driver IC...

  • Page 33: Controlling The Laser Activation Timing

    Chapter 2 2.3.2 Controlling the Laser Activation Timing 2.3.2.1 Laser emission control 0018-3095 LBP3370 / LBP3310 The laser emission control controls the laser diodes (LD1, LD2) to turn ON/OFF at constant light intensity according to the VIDEO signals (VDO1, /VDO1, VDO2, /VDO2) from the video controller.

  • Page 34: Laser Scanner Motor Control

    Chapter 2 /BDO Unmasking area 0 mm 0 mm F-2-5 1) The shaded area indicates the area an image can be written by the laser beam. 2) T1 indicates the area of left /right outsides 0 mm of letter sized paper despite a paper size is specified or not. 3) T2 indicates the area of 2 mm behind the leading edge of the paper (where the /BDO signal starts to output) to the trailing edge.

  • Page 35: Scanner Motor Speed Control

    Chapter 2 Engine controller PCB Video controller PCB Laser/scanner unit J801 J201 /BDI BD sensor IC201 +24VA +24VA J812 Scanner driver IC /ACC Frequency Integrated Drive comparator circuit circuit /DEC Reference clock Divider X201 Scanner motor F-2-6 2.3.4.2 Scanner motor speed control 0018-3101 LBP3370 / LBP3310 The scanner motor is 3-phase DC brushless motor unified with the hole effect device and it is unified with the drive circuit.

  • Page 36: Print Process

    Chapter 2 When the engine controller receives print command from the video controller, it drives the main motor in order to rotate the followings: photosensitive drum, de- veloping cylinder, primary charging roller, transfer charging roller and pressure roller. The primary charging roller allows the surface of the photosensitive drum to charge evenness negative. At the same time, the laser beam, modulated by the VIDEO signals (VDO1, VDO2, /VDO1, /VDO2), is emitted onto the surface of photosensitive drum in order to format the latent image on the drum by the laser diode.

  • Page 37: Development Block

    Chapter 2 5. Photosensitive drum cleaning block Clean the residual toner on the photosensitive drum. Step 7: Drum cleaning 2.4.1.3 Electrostatic latent image formation block 0018-3106 LBP3370 / LBP3310 This block consists of two steps and forms an electrostatic latent image on the photosensitive drum. When the last step in this block is complete, a negative electrical charge is remained in the unexposed drum surface area by the laser beam and it is removed from the exposed area.

  • Page 38: Transfer Block

    Chapter 2 Blade Photosensitive Stirrer drum Cylinder Developing cylinder Magnet AC bias DC bias F-2-12 The exposed area on the photosensitive drum is indicated positive in figure despite of the fact that the actual potential on the drum is negative. This means that the potential of the photosensitive drum is higher than that of the cylinder relative to the potential of the cylinder.

  • Page 39: Fixing Block

    Chapter 2 roller of this printer interlocks the photosensitive drum in order to improve the image quality. Step 5: Separation Photo- sensitive Paper drum Static charge eliminator Transfer charging roller F-2-15 A print paper is separated from the drum by its elasticity. (Curvature Separation) The static charge on the back side of a print paper is decreased with the electrostatic eliminator after the transfer process in order to stable the feeding operation and prevent the crescent spots of printing image under the L/L environment.

  • Page 40: High-Voltage Control

    Chapter 2 2.4.2 High-Voltage Control 2.4.2.1 Outline 0018-3112 LBP3370 / LBP3310 The high-voltage power supply circuit generates the high-voltage required for the image formation. It consists of the primary charging bias circuit, the developing bias circuit, and the transfer charging bias circuit. The primary charging bias circuit generates the negative DC voltage and AC voltage.

  • Page 41: Transfer Charging Bias Generation

    Chapter 2 The developing bias (DV) is generated according to the DEVELOPING AC BIAS DRIVE signal (DVACC) output from the CPU. The DVACC signal is a clock signal to generate the AC bias and the developing AC bias is generated according to this signal. The developing DC bias is generated according to the developing AC bias generated in the developing AC bias generation circuit.

  • Page 42: Detecting Jams

    Chapter 2 ENGINE CONTROLLER PCB PS915 PS915 Registration shutter PS914 Separation F-2-19 M1: Main Motor SL1: Cassette pick-up solenoid SL2: Manual feed solenoid SL3: Reversing solenoid 2.5.2 Detecting Jams 2.5.2.1 Jam Detection Outline 2.5.2.1.1 Outline 0018-3122 LBP3370 / LBP3310 This printer is provided the following paper detection sensors to detect the presence of the paper and weather the paper feed is operated normally or not. 1: Top of page sensor (PS912) 2: Delivery sensor/Reversing sensor (PS915) The CPU determines a paper jam by checking whether the paper is present at the sensor or not at the checking timing.

  • Page 43: Delay Jams

    Chapter 2 2.5.2.2 Delay Jams 2.5.2.2.1 Pick-up delay jam 0018-3123 LBP3370 / LBP3310 The printer performs the retry control, which executes pick-up operation twice, in order to relief the pick-up delay jam caused by pick-up error. When the top of page sensor (PS912) cannot detect the leading edge of the paper within approx. 2.4 sec. (1.9 sec. for the MPT, 3.0 sec. for the optional cassette) after when the pick-up solenoid (SL1) is turned ON, the CPU retries the pick-up operation twice.

  • Page 44: Multi-Purpose Pickup

    Chapter 2 2) When the initial rotation gets ready (Note), the cassette pick-up solenoid (SL1) turns ON for approx. 0.15 sec. Accordingly, the rotation of the main motor is transferred to the pick-up roller to be rotated. 3) The print paper is at the position to be picked up by the lifting plate, which pushed up according to the spring force. One print paper is picked up by the pick-up roller rotation and fed into a printer.

  • Page 45: External And Controls System

    Chapter 2 2.6 EXTERNAL AND CONTROLS SYSTEM 2.6.1 Fan 2.6.1.1 Fan motor control 0018-3141 LBP3370 / LBP3310 The fan motor control drives the fan motor according to the commands from the CPU. The control circuit of the fan motor is illustrated below. Fan motor Engine controller PCB Fan motor drive circuit...

  • Page 46: Protective Functions

    Chapter 2 Power switch (SW101) Engine control PCB Low-voltage power Fixing heater supply circuit Relay Triac (RL101) Fuse (FU101) Fixing heater safety circuit Noise filter High-voltage Fuse power supply (FU102) circuit +3.3V Noise Door switch (IC201) filter (SW301) +24U Rectification 220-240V Fan motor Fan motor...

  • Page 47: Engine Control System

    Chapter 2 2.7 ENGINE CONTROL SYSTEM 2.7.1 Video Controller 2.7.1.1 Outline 0018-3144 LBP3310 The video controller receives print information from an external device (e.g., host computer) through an interface cable. The print information includes the CAPT command used to communicate printer status and unique information and dot data, which is the result of conversion of resource type print data by the host computer. The dot data is sent to the engine controller for control of the activation of the laser diode.

  • Page 48: Overview

    Chapter 2 F-2-24 2.7.1.3 Overview 0018-3146 LBP3370 The video controller receives print information from external devices (e.g., host computer) through interface cables. Such print information contains commands used to exchange printer status and unique information as well as PDL data. The PDL data is converted into a display list by the display list generation circuit, and turned into bitmap data for output to the DC controller.

  • Page 49: Engine Controller

    Chapter 2 SDRAM Retains image data. EEPROM EEPROM for storage of various parameters IC16 Flash ROM ROM for storage of programs IC1009 ASIC system control IC1010 system control IC1088 EEPROM EEPROM for MAC address IC3004 Reset IC system reset IC1060 IC1060 IC3004 IC1088...
  • Page 50 Chapter 2 Engine controller PCB Main motor Fixing control Fixing unit circuit Solenoids Low-voltage power AC input Sensors supply circuit Fan motor drive Duplex driver circuit (Duplex model IC201 only) Reset Circuit Transfer Option charging roller High-voltage power supply Pressure roller circuit Cartridge Memory tag circuit...

  • Page 51: Fixing Unit/Delivery System

    Chapter 2 2.8 FIXING UNIT/DELIVERY SYSTEM 2.8.1 Overview/Configuration 2.8.1.1 Outline 0018-3136 LBP3370 / LBP3310 The fixing/delivery unit fixes the toner onto a print paper and delivers it to the delivery tray. The operation of the fixing/delivery unit is explained in the following. 1) The print paper fed from the pick-up/feed unit is fused the toner by the fixing film and the pressure roller.

  • Page 52: Various Control Mechanisms

    Chapter 2 2.8.2 Various Control Mechanisms 2.8.2.1 Fixing Temperature Control 2.8.2.1.1 Fixing temperature control 0018-3137 LBP3370 / LBP3310 The fixing temperature control detects the surface temperature of the fixing heater. It controls the drive signals of the fixing heater and maintains its temperature at the targeted temperature.

  • Page 53: Protective Functions

    Chapter 2 Paper type selected for driver Fixing target temperature Heavy paper 2 210 to 200 deg C Transparency 190 to 185 deg C Envelop 205 to 195 deg C Label 210 to 200 deg C 3) Between-sheets temperature control This control maintains the temperature of the fixing heater below the normally targeted temperature during the continuous printing in order to prevent the temperature rise of betweensheets.

  • Page 55: Chapter 3 Disassembly And Assembly

    Chapter 3 DISASSEMBLY AND ASSEMBLY...
  • Page 57 Contents Contents 3.1 EXTERNAL AND CONTROLS SYSTEM ........................3-1 3.1.1 Rear Cover ....................................3-1 3.1.1.1 Preparation for removing the rear cover unit ..............................3-1 3.1.1.2 Removing the rear cover unit ..................................3-1 3.1.2 Right Cover ....................................3-1 3.1.2.1 Detaching the right cover ....................................3-1 3.1.3 Left Cover ....................................
  • Page 58 Contents 3.4.3 Cassette Separation Pad ................................3-14 3.4.3.1 Removing the cassette separation pad ................................3-14 3.4.4 Manual Pickup Roller ................................3-14 3.4.4.1 Removing the manual pickup roller................................3-14 3.4.5 Manual Separation Pad ................................3-15 3.4.5.1 Preparation for removing the manual separation pad ........................... 3-15 3.4.5.2 Removing the manual separation pad ................................

  • Page 59: External And Controls System

    Chapter 3 3.1 EXTERNAL AND CONTROLS SYSTEM 3.1.1 Rear Cover 3.1.1.1 Preparation for removing the rear cover unit 0018-2603 LBP3370 / LBP3310 1) Detach the left cover.(page 3-2)Reference [Detaching the left cover] 2) Detach the right cover.(page 3-1)Reference [Detaching the right cover] 3.1.1.2 Removing the rear cover unit 0018-2604 LBP3370 / LBP3310...

  • Page 60: Left Cover

    Chapter 3 6) Fit the blade edge of flat-blade screwdriver to the claw [2] of the right cov- 2) Press the release button [1] to open the front cover [2]. er through the gap with the upper cover. Move down the driver to the di- rection of [C] to disengage the claw [2] and open the right cover [3] to the direction of [D] to detach.

  • Page 61: Upper Cover

    Chapter 3 1) Remove the parts below. - 1 screw [1] - 1 clamp [2] - 1 connector [3] F-3-8 2) Detach the upper cover unit [1] together with the control panel. - 2 screws [2] (to be loosened) - 2 screws [3] F-3-7 MEMO: The figure below shows the locations of 2 claws [1] to be disengaged when...

  • Page 62: Front Cover

    Chapter 3 F-3-11 F-3-13 3.1.4.3 Detaching the upper cover 3) Free the harness [2] from the guide [1]. 0018-2632 LBP3370 1) Remove the parts below. - 1 screw [1] - 1 clamp [2] - 1 connector [3] F-3-14 4) Detach the upper cover [1]. - 1 claw [2] - 1 control panel [3] F-3-12...

  • Page 63: Detaching The Front Cover Unit

    Chapter 3 1) Detach the left cover.(page 3-2)Reference [Detaching the left cover] 2) Detach the right cover.(page 3-1)Reference [Detaching the right cover] 3.1.5.2 Detaching the front cover unit 0018-2717 LBP3370 / LBP3310 1) Remove the cartridge arm [1]. - 1 boss [2] F-3-18 3.1.6 Main Drive Unit 3.1.6.1 Preparation for removing the main drive...

  • Page 64: Duplexing Drive Unit

    Chapter 3 F-3-20 F-3-23 4) Remove the harness guide [1]. - 1 screw [2] Gears of the main drive assembly are not fixed on the plate. Remove with care not to make them fall apart. 3.1.7 Duplexing Drive Unit 3.1.7.1 Removing the duplexing drive assembly 0018-2963 LBP3370 / LBP3310 1) Detach the right cover.(page 3-1)Reference [Detaching the right cover]...

  • Page 65: Operation Panel Unit

    Chapter 3 Gears of the duplexing drive assembly are not fixed on the plate. Remove with care not to make them fall apart. Points to note when attaching Be sure to install the black gear [2] to the side where a left-direction arrow [1] is marked.

  • Page 66: Engine Controller Board

    Chapter 3 F-3-33 4) Detach the control panel [1]. - 1 claw [2] F-3-30 3.1.8.3 Detaching the control panel 0018-2643 LBP3370 1) Remove the parts below. - 1 screw [1] - 1 clamp [2] - 1 connector [3] F-3-34 F-3-31 5) Detach the control panel [1].

  • Page 67: Removing The Engine Controller Pcb

    Chapter 3 the duplexing drive assembly] remove it to the forward direction. 6) Remove the video controller PCB.(page 3-10)Reference LBP3310 [Re- moving the video controller PCB](page 3-11)Reference LBP3370 [Re- moving the video controller PCB] Slide out the engine controller unit with care not to damage the flat cable [1]. 7) Remove the fixing assembly.(page 3-17)Reference LBP3310 [Remov- ing the fixing assembly](page 3-18)Reference LBP3370 [Removing the fixing assembly]...

  • Page 68: Duplexing Driver Board

    Chapter 3 3.1.11 Video Controller Board 3.1.11.1 Removing the video controller PCB 0018-2968 LBP3310 1) Detach the left cover.(page 3-2)Reference [Detaching the left cover] 2) Remove the parts below. - 1 screw [1] - 1 clamp [2] - 1 connector [3] F-3-40 3.1.10 Duplexing Driver Board 3.1.10.1 Preparation for removing the duplexing driver...

  • Page 69: Removing The Video Controller Pcb

    Chapter 3 F-3-46 3.1.11.2 Removing the video controller PCB 0018-2967 LBP3370 1) Detach the left cover.(page 3-2)Reference [Detaching the left cover] 2) Remove the parts below. - 1 screw [1] - 1 clamp [2] - 1 connector [3] F-3-49 3.1.12 USB Board 3.1.12.1 Removing the USB PCB 0018-2969 LBP3310...

  • Page 70: Door Switch

    Chapter 3 F-3-54 F-3-51 4) Remove the video controller PCB [1] together with the USB PCB [2]. 3.1.14 Main Body Fan - 2 flat cables [3] - 2 connectors [4] - 9 screws [5] 3.1.14.1 Preparation for removing the fan 0018-2995 LBP3370 / LBP3310 1) Detach the left cover.(page 3-2)Reference [Detaching the left cover]...

  • Page 71: Laser Exposure System

    Chapter 3 3.2 LASER EXPOSURE SYSTEM 3.2.1 Laser Scanner Unit 3.2.1.1 Preparation for removing the laser scanner unit 0018-2959 LBP3370 / LBP3310 1) Detach the left cover.(page 3-2)Reference [Detaching the left cover] 2) Detach the right cover.(page 3-1)Reference [Detaching the right cover] 3) Remove the rear cover unit.(page 3-1)Reference [Removing the rear cover unit] 4) Detach the upper cover unit.(page 3-3)Reference LBP3310 [Detaching...

  • Page 72: Cassette Pickup Solenoid

    Chapter 3 4) Shift the 2 hinges [3] to the direction of the arrow [C] to remove the pickup 1) Remove the cassette. roller [4]. 2) Remove the cassette separation pad [1]. - 2 screws [2] F-3-63 3.4.4 Manual Pickup Roller 3.4.4.1 Removing the manual pickup roller 0018-3065 LBP3370 / LBP3310...

  • Page 73: Manual Separation Pad

    Chapter 3 F-3-68 F-3-66 2) While pressing the sides [2] of the roller cover [1] to the direction of the arrow (to disengage the claw [3]), lift the roller cover to remove. 3.4.5 Manual Separation Pad 3.4.5.1 Preparation for removing the manual separation 0018-3067 LBP3370 / LBP3310 1) Detach the left cover.(page 3-2)Reference [Detaching the left cover]...

  • Page 74: Main Motor

    Chapter 3 1) Remove the reverse solenoid [1]. - 1 connector [2] - 1 screw [3] F-3-71 3.4.7 Main Motor 3.4.7.1 Preparation for removing the main motor 0018-3009 LBP3370 / LBP3310 F-3-73 1) Detach the left cover.(page 3-2)Reference [Detaching the left cover] 3.4.9 Duplexing Unit 2) Detach the right cover.(page 3-1)Reference [Detaching the right cover] 3) Remove the rear cover unit.(page 3-1)Reference [Removing the rear...

  • Page 75: Fixing System

    Chapter 3 F-3-75 4) Detach the duplexing unit [1] from the rear cover unit [2]. F-3-77 - 2 bosses [3] 3) Remove the paper holder unit [1]. - 2 claws [2] F-3-78 4) Move the guide [1] to the direction of the arrow to remove. - 7 connectors [2] - harness [3] - 1 screw [4]...
  • Page 76 Chapter 3 F-3-83 F-3-80 6) Remove the gear [1]. 3.5.1.3 Removing the fixing assembly - 1 claw [2] 0018-2983 7) Remove the 2 bosses [3], turn the 2 bushings [4] to the direction of the ar- LBP3370 row and remove the delivery roller [5]. 1) Free the harness [2] from the edge saddle [1].

  • Page 77: Fixing Film Unit

    Chapter 3 F-3-86 F-3-89 5) Disconnect the 2 connectors [1]. 10) Remove the 3 screws [1]. 11) Slightly open the main body frame to both sides and remove the 2 bosses [2] on the right and left side plates to remove the fixing assembly [3]. F-3-87 6) Remove the gear [1].

  • Page 78: Fixing Pressure Roller

    Chapter 3 F-3-91 F-3-94 2) Shift the fixing inlet guide [1] to the direction of the arrow [A], remove 3.5.3 Fixing Pressure Roller the boss [2] and move the guide to the direction of the arrow [B] to re- move. 3.5.3.1 Preparation for removing the fixing pressure roller 0018-2991...
  • Page 79 Chapter 3 F-3-96 3-21...
  • Page 80 Chapter 3 3-22...

  • Page 81: Chapter 4 Maintenance And Inspection

    Chapter 4 MAINTENANCE AND INSPECTION...

  • Page 83: Periodically Replaced Parts

    Contents Contents 4.1 Periodically Replaced Parts ............................4-1 4.1.1 Periodically Replaced Parts ................................. 4-1 4.2 Consumables ..................................4-1 4.2.1 Life Expectancy of Consumable Parts ............................4-1 4.3 Periodical Service ................................4-1 4.3.1 Periodic Service ................................... 4-1 4.4 Cleaning ..................................4-1 4.4.1 Cleaning During Service Visit ..............................4-1...

  • Page 85: Periodically Replaced Parts

    Chapter 4 4.1 Periodically Replaced Parts 4.1.1 Periodically Replaced Parts 0018-3154 LBP3370 / LBP3310 The machine does not have parts that require periodical replacement. 4.2 Consumables 4.2.1 Life Expectancy of Consumable Parts 0018-3155 LBP3370 / LBP3310 No consumable parts are required in this printer. 4.3 Periodical Service 4.3.1 Periodic Service 0018-3156...

  • Page 87: Chapter 5 Troubleshooting

    Chapter 5 TROUBLESHOOTING...
  • Page 89 Contents Contents 5.1 MEASUREMENT AND ADJUSTMENT ........................5-1 5.1.1 Test Print ...................................... 5-1 5.1.1.1 Test Print .........................................5-1 5.1.1.2 Test Print .........................................5-1 5.1.2 Mechanical Adjustment ................................5-1 5.1.2.1 Checking the Nip Width (fixing pressure roller) ............................5-1 5.2 SERVICE TOOLS .................................5-2 5.2.1 Standard Tools ..................................... 5-2 5.2.2 Special Tools....................................

  • Page 91: Measurement And Adjustment

    Chapter 5 5.1 MEASUREMENT AND ADJUSTMENT ing unit to pull out the paper from the printer 6) Measure the width of the glossy band across the paper and check that it meets the requirements. 5.1.1 Test Print - Center (a): 5.6 mm to 9.0 mm - Right and left (b, c): 5.6 mm to 9.0 mm (Measure the 10 mm point from the paper edge) 5.1.1.1 Test Print...

  • Page 92: Service Tools

    Chapter 5 5.2 SERVICE TOOLS 5.2.1 Standard Tools 0018-3182 LBP3370 / LBP3310 The table below lists the standard tools required for servicing the printer. T-5-1 Tool name Tool No. Remark Tool case TKN-0001 Jumper wire TKN-0069 With a clip Clearance gauge CK-0057 0.02 to 0.3 mm Compression spring scale...

  • Page 93: Error Code

    Chapter 5 Error code Major cause/detection Remedy E747 There is a fault in the video controller memory. - Replace the video controller PCB. E805 The fan has a fault. - Replace the fan. - Replace the engine controller PCB. 5.3.2 Error Code 0018-3194 LBP3370 T-5-3...

  • Page 94: A4-Xx_Error

    Chapter 5 Code Description Remedial action 0000 Fault of software program for the video controller - Download the correct firmware for the video controller - Replace the video controller PCB E805 Fan error 0000 Fixing fan error - Replace the fan. Cause - Replace the engine PCB.

  • Page 95: Version Up

    Chapter 5 T-5-8 Number field Description Corrective action D8-00 TO 0C A fault has occurred in the firmware of the LIPS LX (BLD) translator. 1) Turn on the power. 2) If step 1 fails, replace the controller board. 5.4 Version Up 5.4.1 Overview of Upgrading Work 0018-3176 LBP3370...
  • Page 96 Chapter 5 LBP3370 PC for Servicing Filmware download Filmware Flash ROM F-5-5 MENO: The machine does not support uploading/downloading of the SST's backup mechanism. The machine does not support uploading/downloading of the SST's backup mechanism. To use the SST, put the machine in download mode: Shifting to Download Mode 1.

  • Page 97: Registering The Firmware

    Chapter 5 Main power-ON SYSTEM BOOT program SYSTEM program Service Mode Downrod Download control program Download mode F-5-7 5.4.4 Registering the Firmware 0018-3179 LBP3370 Copy the firmware from the system CD to the SST. [Making Preparations] Items to Prepare - PC to which SST v3.34 or later has been installed - system CD for the LBP3370 [Copying the Firmware] 1) Start up the PC.
  • Page 98 Chapter 5 Service Support Tool DLM0 (Ver.3.34E) Registerd Firms CONTROL Regist Firm C l i ck a bu t t o n t o exe c u t e . Registered fir mware Select a dr ive and folder. CONNECT Register Fir mware Delete Fir mware System Software...

  • Page 99: Making Connections

    Chapter 5 Service Support Tool DLM0 (Ver.3.34E) Registerd Firms Found Firm CONTROL C l i c k a b u t t o n t o exe c u t e . Registered fir mware F i r m wa r e r e g i s t ra t i o n c o m p l e t e d . >...

  • Page 100: The Down Load Procedure Of The System

    Chapter 5 F-5-13 MEMO: The New Hardware Wizard appears on the PC screen. Click [cancel]. Found New Hardware Wizard Welcome to the Found New Hardware Wizard This Wizard helps you indtall a device driver for a hardware device. To continue, click Next. Cancel <...
  • Page 101 Chapter 5 Service Support Tool DLM0 (Ver.3.34E) Download Target Selection CONTROL Model List Select the target. C l i ck a bu t t o n t o exe c u t e . Select a model to connect LBP3370 EBP3360 CONNECT LBP3370...
  • Page 102 Chapter 5 Service Support Tool DLM0 (Ver.3.34E) Download SelectableFirmware Control Information Click the button of task to be Select the firmware to be Initial executed. download, rhen click the [Start] button. Connect via USB Selectable Firmware Download Download Firmware LBP3370 Complete CONT XXxxv0102...

  • Page 103: Service Mode

    Chapter 5 Service Support Tool DLM0 (Ver.3.34E) Download Target Selection CONTROL Model List Select the target. C l i ck a bu t t o n t o exe c u t e . Select a model to connect LBP3370 LBP3370 CONNECT CONT...
  • Page 104 Chapter 5 T-5-11 Service mode > Log gr. Item Settings Description sets the system log mechanism on*/off SYSTEM LOG T-5-12 Service mode > F/W update gr. Item Description Settings executes upgrading of the controller firmware* (only if USB) ---- executes upgrading of the controller firmware ---- NETWORK T-5-13...

  • Page 105: Chapter 6 Appendix

    Chapter 6 APPENDIX...
  • Page 107 Contents Contents 6.1 OUTLINE OF ELECTRICAL COMPONENTS......................6-1 6.1.1 Clutch/Solenoid.................................... 6-1 6.1.1.1 Solenoid...........................................6-1 6.1.2 Motor......................................6-1 6.1.2.1 Motor..........................................6-1 6.1.3 Fan........................................ 6-2 6.1.3.1 Fan...........................................6-2 6.1.4 Sensor......................................6-2 6.1.4.1 Sensor ..........................................6-2 6.1.5 PCBs ......................................6-3 6.1.5.1 PCB ..........................................6-3...

  • Page 109: Outline Of Electrical Components

    Chapter 6 6.1 OUTLINE OF ELECTRICAL COMPONENTS 6.1.1 Clutch/Solenoid 6.1.1.1 Solenoid 0018-3161 LBP3370 / LBP3310 F-6-1 Reversal solenoid Cassette pick-up solenoid Manual feed pick-up solenoid 6.1.2 Motor 6.1.2.1 Motor 0018-3162 LBP3370 / LBP3310...

  • Page 110: Fan

    Chapter 6 F-6-2 Main motor 6.1.3 Fan 6.1.3.1 Fan 0018-3163 LBP3370 / LBP3310 F-6-3 T-6-1 6.1.4 Sensor 6.1.4.1 Sensor 0018-3164 LBP3370 / LBP3310...

  • Page 111: Pcbs

    Chapter 6 F-6-4 Interlock switch Top of page sensor/Paper width detection sensor Delivery sensor Paper width detection sensor 2 6.1.5 PCBs 6.1.5.1 PCB 0018-3165 LBP3370 / LBP3310 F-6-5 Display PCB...
  • Page 112 Chapter 6 Duplexing driver PCB Engine controller PCB Video controller PCB USB conector PCB...
  • Page 113 Jan 25 2008...

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