Canon LBP-3260 Service Manual
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Canon LBP-3260 Service Manual

Canon LBP-3260 Service Manual

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SERVICE
MANUAL
REVISION 0
RY8-1390-000
JAN. 1999
COPYRIGHT
1999 CANON INC.
CANON LBP-3260 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

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  • Page 1: Service Manual

    SERVICE MANUAL REVISION 0 RY8-1390-000 JAN. 1999 COPYRIGHT 1999 CANON INC. CANON LBP-3260 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 2 COPYRIGHT © 1999 CANON INC Printed in Japan Imprimé au Japon Use of this manual should be strictly supervised to avoid disclosure confidential information. Prepared by PERIPHERAL PRODUCTS QUALITY ADVANCEMENT DIV. PERIPHERAL PRODUCTS TECHNICAL DOCUMENTATION DEPT. CANON INC. 5-1, Hakusan 7-chome, Toride-City, Ibaraki-Pref. 302-8501, Japan...

  • Page 3: Chapter 1 Product Information

    PREFACE This Service Manual contains basic information required for after-sales service of the laser beam printer LBP-3260 (hereinafter referred to as the "printer"). This information is vital to the ser- vice technician in maintaining the high print quality and performance of the printer. This manual consists of the following chapters: Chapter 1: Product information Features, specifications, operation, and installation...
  • Page 4 DTP system This manual was produced on an Apple PowerMacintosh 9500/233 personal computer and output by an Apple LaserWriter 16/600 PS laser beam printer; final pages were printed on DAINIPPON SCREEN MFG CO. LTD DT-R3100. All graphics were produced with Macromedia FreeHand (J), and all documents and page layouts were created with QuarkXPress (E).

  • Page 5: Table Of Contents

    CONTENTS CHAPTER 1 PRODUCT INFORMATION FEATURES ......1-1 VI. MAINTENANCE AND SPECIFICATIONS ....1-3 SERVICING BY THE III. SAFETY INFORMATION ..1-6 CUSTOMER ......1-18 IV. PARTS OF THE PRINTER ..1-7 VII. OPERATION ......1-21 INSTALLATION ...... 1-9 CHAPTER 2 OPERATION AND TIMING BASIC OPERATION ....
  • Page 6 A. Locations ......3-24 VI. CLUTCHS/SOLENOIDS ... 3-31 B. Thermoswitch ....3-25 A. Locations ......3-31 C. Door Switch ...... 3-25 B. Multi-purpose Tray Pick-up D. Upper Cassette Paper-size Clutch ....... 3-32 Sensing Switch/Lower Cassette C. Feed Clutch....... 3-32 Paper-size Sensing Switch . 3-26 D.
  • Page 7 SERVICING......4-35 Visit ........4-36 A. Periodic Replacement E. Standard Tools ....4-38 Parts ........ 4-35 F. Special Tools ..... 4-39 B. Expected Service Life of G. Special Tools (printer driver Consumable Parts....4-35 tester) Explanation... 4-40 C. Periodic Service ....4-35 H.
  • Page 9 CHAPTER 1 PRODUCT INFORMATION FEATURES ......1-1 VI. MAINTENANCE AND SPECIFICATIONS ....1-3 SERVICING BY THE III. SAFETY INFORMATION ..1-6 CUSTOMER ......1-18 IV. PARTS OF THE PRINTER ..1-7 VII. OPERATION ......1-21 INSTALLATION ...... 1-9...

  • Page 11: Features

    It can also reduce toner consumption by selecting the economy mode to print light images with less toner. 10. Automatic emulation switching The printer supports Hewlett-Packard's enhanced PCL6. With the optional PostScript ROM DIMM (Canon Translator Module A-72) installed, the printer can automatically switch between the standard PCL and Adobe PostScript 3™.
  • Page 12 CHAPTER 1 This page intentionally left blank 1 - 2...

  • Page 13: Specifications

    CHAPTER 1 II. SPECIFICATIONS A. Printer 1. Printer Engine 1) Type Desktop page printer (console type when paper deck is installed) 2) Printing method Electrophotography 3) Printing speed (Note 1) About 32 pages/min. (A4/Letter), about 18 pages/min. (A3) 4) First print time (Note 2) 12.9 sec. or less (A4), 14.3 sec. or less (A3) 5) Wait time (Note 3) 90 sec.
  • Page 14 CHAPTER 1 11) Duplex print Auto-duplexing When duplex unit (option) is installed, and plain paper (64g/m 105g/m recommended paper) only. Manual duplexing (Note 4) Plain paper (64g/m to 128g/m recommended paper) on multi- purpose tray only. 12) Environment Temperature 10 to 32.5°C Humidity 20 to 80%RH Air pressure...
  • Page 15 CHAPTER 1 B. Option 1. Hard disk 1) Memory 2.16GB 2) Interface ATA-3 (IDE) 3) Dimensions 70 (w) 12.7 (D) 100 (H) mm (excluding mounting materials and connector.) 4) Weight About 0.15kg 5) Power supply DC5V (supplied from the printer) Specifications are subject to change with product modification.

  • Page 16: Safety Information

    CHAPTER 1 III. SAFETY INFORMATION A. Laser Safety An invisible laser beam is irradiated within the laser/scanner unit. Since the laser beam can injure the eye if it strikes it, be sure not to disassemble the laser/scanner unit. It cannot be adjusted in the field, anyway. The label shown below is attached to the laser/scanner unit cover.

  • Page 17: Parts Of The Printer

    CHAPTER 1 IV. PARTS OF THE PRINTER A. External Views 1: Operation panel unit 2: Face-down tray 3: Upper cover 4: Delivery stopper 5: Test print switch 6: Multi-purpose tray 7: Duplex unit door 8: Upper cassette 9: Lower cassette 10: Power switch 11: Delivery cover 12: Face-up tray...
  • Page 18 CHAPTER 1 B. Cross-sectional Views Figure 1-4-4 1: Face-up tray 13: Multi-purpose tray 2: Face-up delivery roller 14: Feed roller 1 3: Face-down delivery roller 15: Feed roller 2 4: Upper fixing roller 16: Separation roller 5: Laser/scanner unit 17: Pick-up roller 6: Primary charging roller 18: Transfer charging roller 7: Photosensitive drum...

  • Page 19: Installation

    CHAPTER 1 V. INSTALLATION A. Notes This printer is packaged and shipped from the factory after careful adjustments and rigorous inspections. When installing the printer, it is important to demonstrate its performance in the same way as when it passes the factory inspection. The service engineer must sufficiently understand the performance of the printer, install it correctly in a location with an appropriate environment, and conduct sufficient checks of the unit.
  • Page 20 CHAPTER 1 2300mm 2300mm 100mm 834mm 900mm 2600mm 2600mm 100mm 834mm 1200mm 2600mm 2600mm 100mm 834mm 1200mm Figure 1-5-1 1 - 10...
  • Page 21 CHAPTER 1 C. Unpacking and Installation Condensation will form on metal surfaces when brought into a warm room from the cold. Therefore, when moving the printer to a warm environment, leave it packed in its box for at least an hour to acclimatize to room temperature. 1.
  • Page 22 CHAPTER 1 6) Remove the 2 screws on the PCB. Figure 1-5-2 7) Insert the claw of the hard disk into the hole of the PCB. Hook Figure 1-5-3 8) Fix the hard disk with the enclosed 2 screws and then connect the connector. Figure 1-5-4 1 - 12...
  • Page 23 CHAPTER 1 9) Install the PCB into the printer and fix it with 2 screws. 10) Turn ON the printer switch. 11) Press the On Line key when the printer becomes READY to take the printer off-line. 12) Press the Menu key to select "CONFIG MENU." 13) Press the Item key to select "FORMAT DISK."...
  • Page 24 CHAPTER 1 4. Operation confirmation 1) Load paper in the lower cassette. 2) Insert the power plug into the outlet and the printer, then turn the power switch ON. After the printer enters STANDBY mode, press the test print switch to make a test print. Check that the density of the output image is correct 3) Clean around the printer and ensure that it is ready for use at anytime.
  • Page 25 CHAPTER 1 D. Storing, Handling the EP-72 Cartridge Whether the cartridge is still sealed in its box or installed in the printer, the effect of the natur- al environment will change it over time regardless of the number of prints. As the progression of this natural change depends on the storage or installation environment, take sufficient care in storing and handling the cartridges.
  • Page 26 CHAPTER 1 b. Effective life Cartridges are effective for 2.5 years following the date of manufacture, which is displayed in an abbreviated form on the cartridge. The cartridge life span is also displayed (month and year) on the cartridge box as 2.5 years from the date of manufacture. Cartridges should be used within their life spans, as image quality will deteriorate after the expiry date.
  • Page 27 CHAPTER 1 Figure 1-5-7 1 - 17...

  • Page 28: Customer

    CHAPTER 1 VI. MAINTENANCE AND SERVICING BY THE CUSTOMER To maintain the optimum performance of the printer, the following maintenance should be per- formed by the customer. 1. Cartridge Shake or replace the cartridge as the occasion demands. 2. Transfer guide, registration guide When replacing the cartridge, clean the transfer guide and registration guide with soft flannel cloth.
  • Page 29 CHAPTER 1 4. Fixing unit When replacing the cartridge, clean the fixing unit following the procedure below. 1) Open the multi-purpose tray and load one sheet of A4 or Letter size paper into the tray. 2) Press the On Line key to take the printer off-line. 3) Press the Menu key to select "PCL MENU."...
  • Page 30 CHAPTER 1 12) Place the printed Cleaning Page into the multi-purpose tray with the printed side face-down. Figure 1-6-4 13) Press the Continue key to feed the Cleaning Page on the other side of the paper. "LOAD CLEANING PAGE IN MANUAL" will appear and the Continue LED will light up. 14) Place the Cleaning Page into the multi-purpose tray.

  • Page 31: Vii. Operation

    CHAPTER 1 VII. OPERATION A. The Operation Panel The operation panel is used to perform basic printer operations, make printer configuration changes that software applications cannot control, identify available typefaces, and check the status of the printer. The operation panel consists of the status indication display, nine indicator lights, and seven menu and operation keys.
  • Page 32 CHAPTER 1 The printer cannot print. · Continue indicator: 3 Indicates the Continue button may be pressed to exit current condition. For instance, if the mes- sage TONER LOW appears in the display panel, press Continue to continue printing but be sure to change the toner as soon as possible.
  • Page 33 CHAPTER 1 set a value from 1 to 999. In this case, to rapidly step through the values, press and hold down +Plus/-Minus. · Form Feed indicator: 12 Indicates that a page is currently being composed in the printer's memory. To print the page before it is completed, take the printer off-line and press the Form Feed key.
  • Page 34 CHAPTER 1 B. Operation Panel Menus You can access the following menus though the operation panel: · PCL MENU · PS MENU (Note 1) · FEEDER MENU · CONFIG MENU · MEMCONFIG MENU · PARALLEL MENU · LOCALTALK MENU (Note 2) ·...
  • Page 35 CHAPTER 1 The reset menu function performs a printer reset to clear all fonts, macros, and page infor- mation but returns some of the menu settings to their original factory defaults. A cold reset clears the memory and restores all menu settings to their factory settings with the exception of the page count value, multi-purpose tray page size, envelope feeder size, and display language.
  • Page 36 CHAPTER 1 This page intentionally left blank 1 - 26...
  • Page 37 CHAPTER 1 Press: To move: MENU Forward Menu level SHIFT and MENU Back ITEM Forward Item level SHIFT and ITEM Back READY Press ON LINE to take the printer off-line. Press +PLUS/-MINUS to select the item. +PLUS/-MINUS Forward Item level Press ENTER to select the value.

  • Page 39: Operation And Timing

    CHAPTER 2 OPERATION AND TIMING 1. This chapter describes the printer functions, the relationships between mechanisms and cir- cuits, and the timing of operations. Mechanical linkages are indicated by black and white lines ( ), the flow of control signals by solid arrows ( ), and the flow of groups of signals by outline arrows ( 2.

  • Page 41: Basic Operation

    CHAPTER 2 I. BASIC OPERATION A. Functions Printer functions can be divided into four groups: the engine control system, the laser/scanner unit, the image formation system, the paper pick-up/feed system. To external device (host computer, etc.) ENGIN CONTROL SYSTEM OVERALL CONTROL SYSTEM Video controller PCB Operation panel...

  • Page 42: Basic Operation Sequences

    CHAPTER 2 B. Basic Operation Sequences Operation sequences of the printer are controlled by the microcomputer on the DC controller PCB. Descriptions of each period from ON until the main motor stops are as shown below. See the appendix for timing chart. Table 2-1-1 Purpose Period...

  • Page 43: Power On Sequence

    CHAPTER 2 C. Power On Sequences Sequences of the printer from power ON until it enters the standby mode are as shown below. Power ON CPU initialization /PPRDY signal output Fixing heater ON Duplexing unit connection Duplexing unit initialization Main motor, scanner motor, pick-up roller, registration roller, primary AC, transfer negative bias ON Development AC bias ON (Checks if the cartridge is installed and if there is...

  • Page 44: Engine Control System

    CHAPTER 2 II. ENGINE CONTROL SYSTEM A. DC Controller Circuit 1. Outline Operation sequences of the printer are controlled by the CPU of this circuit. When DC power is supplied from the power supply by turning ON the power switch of the printer and the printer enters the standby mode, the CPU outputs the signals that drive the loads such as laser diode, motors, and solenoids, based on the print start command and image data.
  • Page 45 CHAPTER 2 3. DC Controller Input/Output Signals DC controller PCB J11-3 J15-3 J14-1 J209-5 Registration P5VB1 paper "L" when the sensor detects paper. /REGS sensor Pick-up PCB J1201-4 J219-18 J13-3 J1205-1 P5VB1 P5VB1 Pick-up unit paper sensor /FEEDS "L" when the sensor detects paper /FEEDS J14-3 J1206-1...

  • Page 46: High-Voltage Power Supply

    CHAPTER 2 DC controller PCB Switch/sensor PCB PS1401 Face-down J1401-10 J205-7 tray paper full FDFULS "H" when the face-down tray is sensor fully loaded with paper. PS1402 Face-down tray delivery FDOUTS "H" when the sensor detects paper. sensor PS1403 Fixing unit FPOUTS "H"...
  • Page 47 CHAPTER 2 DC controller PCB Laser/scanner unit J1001-8 J202-4 Analog signal in proportion to the laser intensity is input. DRVES Laser diode /LENBL "L" to switch the laser ON according to the VDO and /VDO signals. /LON "L" to turn the laser ON compulsively. /VDO The laser is turned ON only when the /LENBL, VDO, -4/-7/-9...
  • Page 48 CHAPTER 2 DC controller PCB "H" to rotate at high speed, "L" t J208-1 FAN1D rotate at low speed. Fixing unit/ "L" when the exhaust fan runs /FAN1S FAN1 Scanner unit normally. "H" to rotate at high speed, "L" to J216-1 FAN2D rotate at low speed.
  • Page 49 CHAPTER 2 DC controller PCB Multi-purpose tray PCB +24VA J1302-2 J1301-2 J214-2 Lifting plate "L" to drive the lifting plate. If the solenoid /MPTSLD plate is up it will drop, if down it will rise. J1303-2 Manual feed "L" to rotate the manual feeding /MTPCLD clutch pick-up roller.
  • Page 50 CHAPTER 2 B. Fixing Control 1. Fixing temperature control The upper fixing roller contains two heaters: fixing main heater (H1: 600W) and fixing sub heater (H2: 450W). The fixing main heater heats the center of the upper roller, and the fixing sub heater mainly heats both ends of the upper roller.
  • Page 51 CHAPTER 2 Table 2-2-1 Target temperature (˚C) (note 2) PRINT SPEED (ppm) (note 1) WAIT STBY PRINT Normal mode Rough mode Notes: 1. The target temperature for the first page in duplex print is 5°C lower. 2. The print speed in the above table is for A4 or Letter sized paper. 2 - 11...
  • Page 52 CHAPTER 2 DC controller PCB GATE ARRAY J222-2 FSRTH Q208 IC202 Q207 Thermistor DB21 GNDTH Thermoswitch J222-1 TSWOUT DA21 TSWIN DA20 DC15 DC16 DC12 Fixing P12/ roller C221 AN12 Fixing heater roller C296 IC201 P30/T00 P33/T11 P34/T12 Q206 +24V Relay Safety Low-voltage drive...
  • Page 53 CHAPTER 2 2. Protective function The printer has three protection functions to prevent abnormal temperature rise of the fixing roller. • The CPU monitors the thermistor voltage. If the thermistor voltage becomes lower than about 1.0V (230°C), the CPU identifies the fixing unit failure, and interrupts power to the fixing unit and reports it to the video controller.
  • Page 54 CHAPTER 2 4. Envelope position lever function This printer can adjust the nip width in two steps by changing the spring pressure of the lower fixing roller. If an envelope wrinkles after it is printed, set the envelope position lever to the enve- lope position.
  • Page 55 CHAPTER 2 2 - 15...

  • Page 56: Supply

    CHAPTER 2 C. High-Voltage Power Supply [T701] PR1ACCLK J701-B7 AC Transformer Primary AC TB701 /PR1ACD Drive Circuit Transformer To primary J701-B8 charging roller AC Current detection Circuit [T702] /PR1DCD J701-B9 AC Transformer Primary DC HVTCLK Drive Circuit J701-A6 Transformer DENADJ Image Density J701-B10 Adjustment Circuit...
  • Page 57 CHAPTER 2 1. Outline In response to the instruction from the microprocessor (CPU) on the DC controller PCB, the high-voltage power supply applies a voltage to the primary charging roller, developing cylinder, transfer charging roller, static charge eliminator, and upper fixing roller. It applies a voltage of DC voltage and AC voltage to the primary charging roller and developing cylinder, applies a pos- itive or negative DC voltage to the transfer charging roller, and a negative DC voltage to the sta- tic charge eliminator and the upper fixing roller.
  • Page 58 CHAPTER 2 the discharger bias switch signal (/DCHGUP) turns “H” the low output bias changes to “L” and the circuit applies a high voltage output bias. The high voltage output bias is applied only at the trailing edge of a single side print and during the second side of a duplex print. e.

  • Page 59: Power Supply

    CHAPTER 2 D. Power Supply 1. Outline Power supply To fixing roller heater DC controller Noise Circuit breaker filter +3.3V Video controller PCB Current transfor Triac Laser driver -mer Power switch Inverter control (S101) circuit Phototriac Triac BD PCB Relay coupler Current Phototriac...
  • Page 60 CHAPTER 2 delivery cover. +5VDC is divided into +5V which is normally supplied to the ICs on the DC controller PCB from the power supply and +5V for power-saving mode (P5VB1). Supply of +5V for the power- saving mode is stopped when the sleep command is received from the video controller. During standby mode and periods when printing is not possible (when /RDY signal is “H”), the +5V is supplied OFF and ON.

  • Page 61: Video Interface Control

    CHAPTER 2 E. Video Interface Control 1. Outline To connect the printer to an external device, such as a host computer, a video controller PCB (interface PCB) is needed. This section explains the kinds of interface signals exchanged between the printer and the video controller PCB, and gives information concerning the sequence of printer operation mak- ing use of interface signals.
  • Page 62 CHAPTER 2 2. Operation When the power is switched ON, the printer enters WAIT mode. At the end of the WAIT mode, the DC controller sends the READY signal (/RDY) to the video controller to inform it that printer is ready to print. When the /RDY signal is “L”...

  • Page 63: Other Controls

    CHAPTER 2 F. Other Controls 1. Main motor control Figure below shows the main motor control circuit. DC controller PCB Main motor +24VB J218-5 J36-5 IC201 /MMRDY /MMOTD Figure 2-2-13 The main motor is a DC brushless motor with hall elements, and is unified with the motor drive circuit.
  • Page 64 CHAPTER 2 2. Fan motor control This printer has 4 heat exhausting fans and an air intake fan. They are DC brushless motors. The figure below shows the fan motor control circuit. DC controller PCB Multi-purpose Multi-purpose tray fan tray fan motor P121 J229-1 FAN5D...
  • Page 65 CHAPTER 2 drive circuit switch the fun motor rotation speed between full and half speed. The CPU assesses a fan motor failure and reports it to the video controller, if the FAN LOCK DETECTION signals (/FAN1S, /FAN2S, /FAN3S, /FAN4S, /FAN5S) stay "L" for about 1.5 sec- onds or more for 3 times at 5 seconds intervals while the fan motors are ON.

  • Page 66: Laser/Scanner System

    CHAPTER 2 III. LASER/SCANNER SYSTEM A. Outline External device Video controller PCB /VSYNC /VDO DC controller /VDO /LENBL /LON DRVES /SCND /SCNRDY /BDI Cylindrical lens Laser driver Scanner motor BD mirror Scanning mirror Mirror Focusing lens BD PCB Photosensitive drum Figure 2-3-1 The DC controller PCB receives the VIDEO signals (/VDO, VDO) from the video controller PCB and sends then to the laser driver in the laser/scanner unit.

  • Page 67: B. Laser Control Circuit

    CHAPTER 2 B. Laser Control Circuit 1. Outline DC controller PCB Laser driver PCB IC201 (Photo diode) J202 J1001 (Laser diode) DRVES P14/ J201-C6 /PRNT AN14 P05/ INTPS J202-4 J1001-8 IC202 /LON NLON /LENBL Drive IC Logic IC NENBL /VDOUT /VDO G.A.

  • Page 68: Unit

    CHAPTER 2 it exceeds 3.805V. 2. Automatic power control of laser diode The laser driver IC controls the automatic power control (APC) of the laser diode so that the laser diode emits a beam of constant intensity. When the FORCED LASER ON signal (/LON) becomes “L,” or the VIDEO ENABLE signal (/ENBL) and /VDOUT signal become “L,”...
  • Page 69 CHAPTER 2 3 mm 3 mm Figure 2-3-3 Notes: 1. The shaded area indicates the area where the laser beam writes on the drum. 2. T1 and T2 vary according to the paper size. If no paper size is specified by the paper size specification command from the video controller during manual feed, the print- er does not recognize the paper width.

  • Page 70: C. Scanning System

    CHAPTER 2 C. Scanning System Figure below shows the scanner motor control circuit. DC controller PCB Scanner motor +24VA J207-7 J1-1 IC201 (CPU) /SCNRDY XT1/P07 IC202 (G.A.) /SCND DB22 /SCNCLK SCNCLK X1AO 24VGND X202 X1AI Figure 2-3-4 The scanner motor is a three-phase, eight-pole DC brushless motor with a HALL element. It forms a unit with the scanner driver, which controls the scanner motor rotation at a constant speed.
  • Page 71 CHAPTER 2 This page intentionally left blank 2 - 31...

  • Page 72: Iv. Image Formation System

    CHAPTER 2 IV. IMAGE FORMATION SYSTEM A. Outline The image formation system is the central hub of the printer, and consists of the photosensitive drum, developing unit and charging roller etc. When the PRINT signal (/PRNT) is sent from the video controller to the DC controller, the DC controller drives the main motor to rotate the photosensitive drum with the laser diode, devel- oping cylinder, primary charging roller, and transfer charging roller.
  • Page 73 CHAPTER 2 Laser beam Cartridge Primary charging roller Blade Developing cylinder Cleaning blade Manual feeding pick-up roller Upper fixing roller Photo- Transfer charging sensitive roller drum Static charge eliminator Lower fixing roller Upper cassette pick-up roller Lower cassette pick-up roller Transfer bias drive signal (TRFVCNT) Transfer negative bias drive signal (/TRFNVD) Transfer bias monitor signal (TRFVSNS)

  • Page 74: Printing Process

    CHAPTER 2 B. Printing Process A major portion of the image formation system is contained with a cartridge as shown in Figure 2-4-2. Laser beam Cartridge Primary charging roller Blade Cleaning blade Developing cylinder Photosensitive drum Transfer charging roller Static charge eliminator Figure 2-4-2 This printer’s cartridge has a seamless photosensitive drum with a two-layer surface shown in Figure 2-4-3.
  • Page 75 CHAPTER 2 5. Drum cleaning stage Step 8 Drum cleaning Electrostatic latent image formation stage Paper path Direction of drum rotation 2. Scanning exposure 1. Primary charge 3. Develop- Developing stage ment Drum cleaning stage 8. Drum cleaning Fixing stage 5.
  • Page 76 CHAPTER 2 1. Electrostatic latent image formation stage This stage follows two steps to produce an electrostatic latent image on the photosensitive drum. At the end of the stage, negative charges remain on the unexposed “dark” areas, where the laser beam struck (exposed) the drum surface. This image of negative charges on the drum is invisible to the eye, so it is referred to as an called an “electrostatic latent image.”...
  • Page 77 CHAPTER 2 Step 2 Scanning exposure Laser beam Unexposed area Exposed area Figure 2-4-7 When the laser beam scans the drum surface, it causes the charge to be neutralized in the areas struck by the laser beam. These areas on the drum surface form the electrostatic latent image. 2.
  • Page 78 CHAPTER 2 As shown in Figure 2-4-8, the developing unit consists of a developing cylinder and a rubber blade. The developing cylinder rotates around a fixed internal magnet. The single-component toner consists of magnetite and a resin binder, and is held to the cylin- der by magnetic attraction.
  • Page 79 CHAPTER 2 Reference: If the image on the photosensitive drum is not completely transferred onto the paper due to jam- ming, etc., the toner may adhere to the transfer charging roller. The printer removes the toner from the transfer charging roller by switching the transfer voltage between positive and negative in the specified sequence.
  • Page 80 CHAPTER 2 4. Fixing stage The toner image transferred onto the paper in the transfer stage is held only by electrostatic attraction and a slight physical adhesion, so even a light touch will smear the image. In the fixing stage, the toner image is fixed by heating the paper and applying pressure. This fuses the toner particles onto the paper to create a permanent image.
  • Page 81 CHAPTER 2 5. Drum cleaning stage In the transfer stage, not all the toner is transferred to the paper. Some remains on the photo- sensitive drum. This residual toner is cleaned off in the drum cleaning stage so that the next print image will be clear and distinct.

  • Page 82: Pick-Up/Feed System

    CHAPTER 2 V. PICK-UP/FEED SYSTEM A. Outline Presence of paper on the multi-purpose tray is detected by the multi-purpose tray paper sensor (PS1301), and presence of paper in the upper and lower cassettes is detected by the cassette paper-out sensor (PS1207 or PS1208). If the cassette pick-up motor (SMT1) in the paper pick-up unit rotates for cassette feeding, pick-up roller, feed roller 1, and separation roller turn to feed a sheet of paper into the printer.
  • Page 83 CHAPTER 2 DC controller PCB 9 1 0 1 1 1 2 1 3 Pick-up PCB Multi-purpose tray PCB Switch/sensor PCB PS1401 PS1402 PS1403 PS1301 PS1302 PS1208 SW1601 PS1202 SW1602 SW1603 PS1205 SW1604 PS1206 PS1207 SW1601 SW1602 PS1201 SW1603 PS1203 SW1604 PS1204 PS1: Registration paper sensor...
  • Page 84 CHAPTER 2 DC controller PCB Pick-up PCB Multi-purpose tray PCB Switch/sensor PCB Face-down delivery roller Flapper Upper fixing Photosensitive Manual feeding roller Registration pick-up roller drum roller Fixing unit Face-up Lifting plate Feed delivery delivery roller Transfer Lower roller 2 roller charging fixing...

  • Page 85: Paper Pick-Up

    CHAPTER 2 B. Paper Pick-up 1. Pick-up operation This printer conducts paper pick-up operation by lifting the paper to the paper pick-up position with the lifter and lowering the rotating cassette pick-up roller to the paper level. Paper pick-up operation is conducted only when the multi-input tray driver receives the pick- up command from the option controller.
  • Page 86 CHAPTER 2 • Pick-up timing from the upper cassette (A4 : tow pages continuously print) Power switch ON (Unit: Seconds) STBY INTR PRINT LSTR STBY PRINT signal (/PRNT) VERTICAL SYNC signal (/VSYNC) Main motor (MT1) 0.06 Pick-up motor (SMT1) 1.97 Cassette pick-up solenoid (SL1) About 1.5 0.06...
  • Page 87 CHAPTER 2 a. Cassette detection/cassette paper size detection/cassette paper level detection The upper and lower cassettes detection is executed by the upper cassette sensor (PS1202) and the lower cassette sensor (PS1201). The paper detection in the upper and lower cassettes is exe- cuted by the upper cassette paper out sensor (PS1208) and the lower cassette paper out sensor (PS1207).
  • Page 88 CHAPTER 2 Pick-up unit Pick-up PCB Remaining Remaining number paper level of sheets (note) Almost full 430 sheetes or more High 200 - 490 sheetes 50 - 260 sheetes Almost empty 110 sheetes or less Note : Plain paper (75g/m recommended paper) PS1204 or PS1206 PS1203 or PS1205...
  • Page 89 CHAPTER 2 b. Lift-up operation The lift-up operation is executed by the multi-input tray drive motor when a cassette is installed or the pick-up roller shaft is set lower than certain level due to the paper reduce. The two cases for the lift-up operation are as follows. Paper lifting plate Pick-up roller Cassette pick-up cam...
  • Page 90 CHAPTER 2 1) Cassette is installed When a cassette is installed, the multi-input tray drive motor rotates, and the cassette paper pick-up solenoid (SL3) is turned ON. Then, the shaft drive arm is driven by the cassette paper pick-up cam rotation through the gear. Cassette pick-up cam Shaft drive arm Main motor drive...
  • Page 91 CHAPTER 2 As the shaft drive arm goes down, the pick-up roller shaft goes down. Then, the lift-up release arm is pushed, and the lift-up cam is unfixed. At the same time, the shaft drive arm is fixed to the pick-up roller shaft fixing arm, and the pick-up roller shaft is stopped in the designated position.
  • Page 92 CHAPTER 2 The pick-up roller shaft is lifted up when the paper on the paper lifting plate touches the pick-up roller. Then, the fixing arm is released, and the lift-up release arm lifts up the pick- up roller shaft to the waiting position by force of the spring. At the same time, the lift-up cam is fixed by driving the pick-up roller shaft fixing arm and the lift-up release arm.
  • Page 93 CHAPTER 2 2) Paper level is lower than certain level As the paper level lowers, the moving distance of the pick-up roller increases. When the moving distance reaches the specified value, the pick-up roller shaft pushes the lift up release arm, and the lift up cam is unfixed. •...
  • Page 94 CHAPTER 2 When the lift-up cam is unfixed, the lift-up arm lifts up the lifter gear one tooth by the rota- tion of the lift-up cam. The paper lifting plate is lifted up by repeating the operation. (See Figure 2-5-10) When the paper on the paper lifting plate touches the pick-up roller, the pick-up roller shaft is lifted up.
  • Page 95 CHAPTER 2 c. Multi-feed prevention mechanism When feeding from the cassette, the printer uses the separation roller to prevent multi-feeding. Normally, the separation roller is imparted with a rotational force opposite to that of the feed roller. However, since the separation roller is equipped with a torque limiter, it rotates with feed roller 1 by transmission of its rotational force via the transported paper.
  • Page 96 CHAPTER 2 2. Manual feed (multi-purpose tray) The presence of paper on the multi-purpose tray is detected by the multi-purpose tray paper sensor (PS1301). When the DC controller receives the /PRNT signal from the video controller, the lifting plate solenoid (SL2) turns ON, the lifting plate is unlocked (the lifting plate rises), and the paper touches the pick-up roller.

  • Page 97: Fixing And Delivery Unit

    CHAPTER 2 C. Fixing and Delivery Unit The upper and lower rollers of the fixing unit, and the face-up and face-down delivery rollers are driven by the main motor (MT1). The paper separated from the photosensitive drum is fed into the fixing unit, and sent from the fixing unit by the fixing roller and fixing unit delivery roller.
  • Page 98 CHAPTER 2 The printer switches between face-up and face-down tray delivery with the face-up deflector. When the FACE-UP SOLENOID DRIVE signal (/FUSLD) becomes “L”, the face-up solenoid (SL3) moves the face-up deflector to the face-up tray and the paper is delivered through the face-up tray.

  • Page 99: Paper Jam Detection

    CHAPTER 2 D. Paper Jam Detection The following paper sensors are provided to detect whether paper is present and whether the paper is fed normally. • Registration paper sensor (PS1) • Pick-up unit paper sensor (PS2) • Fixing unit delivery sensor (PS1403) •...
  • Page 100 CHAPTER 2 7. Residual paper jam a. The CPU assesses a residual paper jam if the fixing unit delivery sensor (PS1403) detects the paper after the power-ON. b. The CPU assesses a residual paper jam if it does not receive an automatic delivery command within 3 minutes after notifying the video controller of the presence of paper which can be automatically delivered out of the printer.

  • Page 101: Vi. Overall Control System

    CHAPTER 2 VI. OVERALL CONTROL SYSTEM A. Video Controller PCB 1. Outline The video controller PCB receives print data consisting of code or image data sent from the exter- nal device (host computer, etc.) through the interface cable. The print data including the contents specified by the control panel is analyzed, processed and converted into the dot data within this PCB.
  • Page 102 CHAPTER 2 IC27 EEPROM IC15 IC10 J6 J7 ASIC DRAM DRAM (16M) (16M) DRAM DRAM (16M) (16M) Figure 2-6-1 2 - 62...
  • Page 103 CHAPTER 2 Video contoroller PCB Block Diagram for option for network board (72pin, 2slot) (50pin, PSIO) <J4> <J2/3> <J11> Extension I/O Firm DIMM ROM DIMM MASK ROM ROM Cont. ROM Cont. (4MB) I/O Cont. ROM Cont. JTAG A [26:8] for hard disk PPC603e (100/33) (44pin, 2.1GB) Hard disk I/O...

  • Page 105: Control Panel

    CHAPTER 2 B. Control Panel 1. Outline The control panel contains a LCD (20 characters x 2 lines), 9 switches, and 7 LEDs. The control panel is connected to the video controller PCB and has the functions listed below. a. Displays status and error messages in the LCD. b.

  • Page 106: Self Test

    CHAPTER 2 C. Self Test The printer executes the self diagnostic program of the video controller to check the condition of the video controller at the power-ON. This function is called self test. There are two types of self tests: power-ON self test and power-ON key sequence. 1.
  • Page 107 CHAPTER 2 6) Pressing the Reset key illuminates the every other column of the top line of the LCD. Releasing the key will clear the display. 7) Pressing the Enter key displays "OPERATION CHECK" message. Releasing the key will clear the message.
  • Page 108 CHAPTER 2 2 - 68...
  • Page 109 CHAPTER 3 THE MECHANICAL SYSTEM PREFACE ....... 3-1 SWITCHES/SENSORS ..... 3-24 EXTERNALS ......3-2 VI. CLUTCHS/SOLENOIDS ... 3-31 III. MAIN UNITS ......3-8 VII. MOTORS/FANS ...... 3-35 IV. MAIN PARTS ......3-15 VIII. PCBS ........3-41...

  • Page 111: I. Preface

    CHAPTER 3 I. PREFACE This chapter describes disassembly and reassembly procedures of the printer. The service technician is to find the factor of the failure according to the "Chapter 4 Troubleshooting" and to follow the disassembly procedures in this chapter to replace the defec- tive part(s).

  • Page 112: Ii. Externals

    CHAPTER 3 II. EXTERNALS A. Locations 1: Upper cover unit 2: Operation panel unit 3: Face-down tray 4: Upper cover 5: Right rear cover 6: Multi-purpose tray 7: Pick-up unit door 8: Duplexing unit door 9: Front cover 10: Delivery cover unit 11: Face-up tray 12: Left lower cover 13: Left rear cover...
  • Page 113 CHAPTER 3 1. Face-down tray 5) Open the delivery cover unit and 1) Open the upper cover. unhook the claw. 2) Holding the knob, remove the lock lever. Close the upper cover and then take out the face-down tray. Delivery cover unit Claw Upper cover Knob...
  • Page 114 CHAPTER 3 3. Upper cover unit 4) Pulling the knob toward you, lift the 1) Remove the face-down tray. upper cover unit and disconnect the 2) Remove the 2 screws. connector from the inside. Screws Knob Upper cover unit Figure 3-2-6 Figure 3-2-8 3) Open the delivery cover unit and then 5) Unhook the 2 claws and then remove...
  • Page 115 CHAPTER 3 4. Rear cover 5. Delivery cover unit 1) Open the upper cover. 1) Open the delivery cover unit. 2) Open the pick-up unit door. 2) Remove the 2 rods that hold the delivery 3) Remove the 2 screws, unhook the claw, cover unit to the printer.
  • Page 116 CHAPTER 3 7. Right cover unit 8. Left rear cover 1) Remove the upper and lower cassettes. 1) Remove the rear cover. 2) Remove the front cover. 2) Open the delivery cover unit. 3) Remove the right rear cover. 3) Remove the 3 screws and then the left 4) Remove the hinge and then the 4 screws rear cover.
  • Page 117 CHAPTER 3 6) Unhook the 2 claws from the inside and B. Control Panel Unit then remove the left lower cover. 1) Remove the front cover. 2) Unhook the 2 claws. Lifting the control panel unit, disconnect the connector from the inside. Claws Left lower cover Figure 3-2-18...

  • Page 118: A. Laser/Scanner Unit

    CHAPTER 3 III. MAIN UNITS B. Drive Unit 1) Remove the pick-up unit following steps 1-7 on Page 3-9. A. Laser/Scanner Unit 2) Remove the screw, and then the cas- 1) Remove the upper cover unit. sette stay. 2) Disconnect the 3 connectors from the laser/scanner unit.
  • Page 119 CHAPTER 3 4) Remove the high-voltage power supply C. Pick-up Unit unit following steps 1-3 on Page 3-47. 1) Pull out the upper and lower cassettes. 5) Undo the connector, remove the 4 2) Perform steps 1-6 on Page 3-12 to screws and then the main motor.
  • Page 120 CHAPTER 3 Notes: 1. While replacing parts in the pick-up unit, to prevent grease from getting on the pick-up, feed and separation rollers, be sure to remove them before working on the unit. Take care not to get grease on the paper feed guide. 2.
  • Page 121 CHAPTER 3 Roller holder Shaft 57T gear Upper lift-up cam Pick-up cam 100T gear 20T/41T gear Lower lift-up cam 31T/47T gear Lifter Figure 3-3-8 3 - 11...
  • Page 122 CHAPTER 3 D. Multi-purpose Tray Pick-up Unit E. Registration Roller Unit 1) Remove the front cover. 1) Open the upper cover. 2) Remove the rear cover. 2) Remove the clutch cover. 3) Remove the multi-purpose tray. 3) Open the transfer charging roller guide. 4) Open the pick-up unit door.
  • Page 123 CHAPTER 3 F. Delivery Unit G. Fixing Unit 1) Remove the upper cover unit. 1) Open the delivery cover unit. 2) Remove the front cover. 2) Move the 2 fastening levers of the fixing 3) Remove the right rear and rear covers. unit in the direction of the arrow, slight- 4) Remove the left rear cover.

  • Page 124: H. Feed Unit

    CHAPTER 3 H. Feed Unit Notes: 1. When replacing the fixing unit, 1) Remove the registration roller unit fol- be sure to confirm the location lowing steps 1-5 on Page 3-12. of the fixing unit envelope lever 2) Remove the transfer charging roller. before replacement and then 3) Remove the fixing unit following steps position it the same way after...

  • Page 125: Main Parts

    CHAPTER 3 IV. MAIN PARTS A. Locations Multi-purpose tray pick-up roller Separation pad Pick-up/Feed/Separation rollers Registration lower roller Transfer charging roller Fixing roller heater Fixing upper roller Fixing lower roller Cleaning roller Figure 3-4-1 3 - 15...

  • Page 126: Multi-Purpose Tray Pick-Up Roller

    CHAPTER 3 B. Multi-purpose Tray Pick-up Roller C. Separation Pad 1) Open the multi-purpose tray. 1) Open the multi-purpose tray. 2) Remove the cover. 2) Remove the cover. 3) Remove the multi-purpose tray pick-up roller. 4) Use a flat-bladed screwdriver to remove the separation pad.

  • Page 127: Pick-Up/Feed/Separation Rollers

    CHAPTER 3 D. Pick-up/Feed/Separation Rollers E. Registration Lower Roller 1) Pull out the upper and lower cassettes. 1) Remove the registration roller unit fol- 2) Grasp the knobs of each roller and pull lowing steps 1-5 on Page 3-12. the rollers out of the printer. 2) Remove the registration clutch.

  • Page 128: Transfer Charging Roller

    CHAPTER 3 F. Transfer Charging Roller G. Fixing Roller Heater 1) Open the upper cover. 1) Remove the fixing unit following steps 2) Open the transfer charging roller guide. 1-2 on Page 3-13. 3) Pinch the gear, lift it slightly, and slide 2) Disconnect the 2 claws that hold the it to the left.

  • Page 129: Fixing Roller Heater

    CHAPTER 3 4) Take out the 4 connectors. H. Fixing Upper Roller 1) Remove the fixing unit following steps 1-2 on Page 3-13. 2) Hold up the left and right levers in the direction of the arrow. 3) Remove the 2 screws. 4) Remove the claw then remove the sepa- ration upper guide while pulling out the separation lower guide.
  • Page 130 CHAPTER 3 5) Remove the E-ring and the spring, then 9) Remove the screw and diode holder. pull out the separation lower guide 10) Remove the screw and the right fixing toward you and slide it off in the direc- cover.
  • Page 131 CHAPTER 3 13) Remove the screw, and the ther- 15) Remove the grounding ring. moswitch stay. Grounding ring Screw Thermoswitch stay Figure 3-4-20 Figure 3-4-18 16) Remove the C-ring and the gear. 14) Remove the screw, undo the 2 claws, and take off the fixing roller cover.

  • Page 132: Fixing Upper Roller

    CHAPTER 3 17) Removing the insulating bushing. Fixing Lower Roller 1) Remove the fixing unit following steps 1-2 on Page 3-13. 2) Remove the fixing upper roller following steps 2-19 from Page 3-19. 3) Remove the fixing lower roller. Insulating bushing Figure 3-4-22 Fixing lower roller 18) Remove the C-ring, O-ring and insulat-...

  • Page 133: Cleaning Roller

    CHAPTER 3 J. Cleaning Roller 1) Remove the fixing unit following steps 1-2 on Page 3-13. 2) Remove the fixing lower roller following steps 2-3 on Page 3-22. 3) Remove the cleaning roller. Cleaning roller Figure 3-4-25 3 - 23...

  • Page 134: Switches/Sensors

    CHAPTER 3 V. SWITCHES/SENSORS A. Locations 1: Thermoswitch 2: Door switch 3: Upper cassette paper-size sensing switch 4: Lower cassette paper-size sensing switch 5: Thermistor 6: Registration paper sensor 7: Pick-up unit paper sensor 8: Pick-up unit door sensor 9: Lower cassette sensor 10: Upper cassette sensor 11: Lower cassette paper-level sensor 1 12: Lower cassette paper-level sensor 2...

  • Page 135: B. Thermoswitch

    CHAPTER 3 B. Thermoswitch C. Door Switch 1) Remove the fixing unit following steps 1) Remove the switch/sensor PCB follow- 1-2 on Page 3-13. ing steps 1-10 on Page 3-45. 2) Remove the wire cover. 3) Remove the 2 screws and then the lead wire and the thermoswitch.

  • Page 136: Paper-Size Sensing Switch

    CHAPTER 3 D. Upper Cassette Paper-size Sensing E. Thermistor Switch/Lower Cassette Paper-size 1) Remove the fixing unit following steps Sensing Switch 1-2 on Page 3-13. 1) Remove the cassette paper-size sensing 2) Remove the wire cover. PCB following steps 1-4 on Page 3-47. 3) Remove the fixing entry guide.

  • Page 137: F. Registration Paper Sensor

    CHAPTER 3 check that the plate spring has not F. Registration Paper Sensor deformed. 1) Remove the feed unit following steps 1- 7 on Page 3-14. 2) Disconnect the connector from the back of the feed unit, and then remove the registration paper sensor.

  • Page 138: G. Pick-Up Unit Paper Sensor

    CHAPTER 3 G. Pick-up Unit Paper Sensor H. Pick-up Unit Door Sensor 1) Remove the pick-up unit following steps 1) Remove the pick-up PCB following steps 1-7 on Page 3-9. 1-3 on Page 3-44. 2) Disconnect the connector, and then 2) Remove the 2 screws.

  • Page 139: Cassette Paper-Out Sensor

    CHAPTER 3 Lower Cassette Sensor/Upper J. Multi-purpose Tray Paper Sensor Cassette Sensor/Lower Cassette /Lifting Plate Position Sensor Paper-level Sensor 1/Lower Cassette 1) Remove the Multi-purpose tray PCB fol- Paper-level Sensor 2/Upper Cassette lowing steps 1-7 on Page 3-44. Paper-level Sensor 1/Upper Cassette Paper-level Sensor 2/Lower Cassette Paper-out Sensor/Upper Cassette Paper-out Sensor...

  • Page 140: Unit Delivery Sensor

    CHAPTER 3 K. Face-down Tray Paper Full Sensor /Face-down Tray Delivery Sensor /Fixing Unit Delivery Sensor 1) Remove the switch/sensor PCB follow- ing steps 1-11 on Page 3-45. 3 - 30...

  • Page 141: Vi. Clutchs/Solenoids

    CHAPTER 3 VI. CLUTCHS/SOLENOIDS A. Locations Multi-purpose tray pick-up clutch Feed clutch Registration clutch Lifting plate solenoid Cassette pick-up solenoid Face-up solenoid Figure 3-6-1 3 - 31...

  • Page 142: Clutch

    CHAPTER 3 B. Multi-purpose Tray Pick-up Clutch C. Feed Clutch 1) Remove the multi-purpose tray pick-up 1) Remove the pick-up unit following steps unit following steps 1-6 on Page 3-12. 1-7 on Page 3-9. 2) Disconnect the 2 connectors. 2) Disconnect the connector. 3) Remove the 2 screws, the clutch cover 3) Remove the screw, and disconnect the 2 unit, and then the multi-purpose tray...

  • Page 143: D. Registration Clutch

    CHAPTER 3 D. Registration Clutch E. Lifting Plate Solenoid 1) Remove the registration roller unit fol- 1) Remove the multi-purpose tray pick-up lowing steps 1-5 on Page 3-12. unit following steps 1-6 on Page 3-12. 2) Remove the E-ring and the registration 2) Disconnect the connector.

  • Page 144: F. Cassette Pick-Up Solenoid

    CHAPTER 3 F. Cassette Pick-up Solenoid G. Face-up Solenoid Unit 1) Remove the pick-up unit following steps 1) Remove the delivery unit following steps 1-7 on Page 3-9. 1-7 on Page 3-13. 2) Disconnect the connector. 2) Disconnect the connector. 3) Remove the screw and take out the cas- 3) Remove the screw and then the face-up sette pick-up solenoid.

  • Page 145: Vii. Motors/Fans

    CHAPTER 3 VII. MOTORS/FANS A. Locations Main motor Pick-up motor Fixing unit/scanner unit fan Power supply fan Electrical unit fan Fixing unit fan Multi-purpose tray pick-up unit fan Figure 3-7-1 3 - 35...

  • Page 146: B. Main Motor

    CHAPTER 3 B. Main Motor C. Pick-up Motor 1) Remove the high-voltage power supply 1) Remove the pick-up unit following steps unit following steps 1-3 on Page 3-47. 1-7 on Page 3-9. 2) Undo the connector, remove the 4 2) Undo the connector. screws and then the main motor.
  • Page 147 CHAPTER 3 D. Fans 2. Fixing unit/scanner unit fan 1. Summary 1) Remove the right rear and rear covers. There are 4 fan motors installed to circu- 2) Remove the upper cover unit. late air within the printer and prevent 3) Disconnect the connector.
  • Page 148 CHAPTER 3 5) Remove the cable from the guide. 3. Power supply fan 6) Unhook the claw, then remove the fan 1) Remove the right rear and rear covers. duct. 2) Disconnect the connector. Cable Cable guide Connector Claw Fan duct Figure 3-7-9 Figure 3-7-7 3) Remove the 2 screws, and then the...
  • Page 149 CHAPTER 3 4. Electrical unit fan 5. Fixing unit fan 1) Remove the right rear and rear covers. 1) Remove the upper cover unit. 2) Remove the left rear cover. 2) Undo the connector. 3) Undo the connector. 3) Remove the screw, and then the fan 4) Pinch the 2 claws holding the electrical grounding plate.
  • Page 150 CHAPTER 3 6. Multi-purpose tray pick-up unit fan 1) Remove the multi-purpose tray pick-up unit following steps 1-6 on Page 3-12. 2) Disconnect the connector. 3) Remove the screw, claw, and then the fan duct together the multi-purpose tray pick-up unit fan. 4) Remove the multi-purpose tray pick-up unit fan from the fan duct.

  • Page 151: Viii. Pcbs

    CHAPTER 3 VIII. PCBS A. Locations DC controller PCB Pick-up PCB Multi-purpose tray PCB Switch/sensor PCB High-voltage power supply PCB Upper cassette paper-size sensing PCB Lower cassette paper-size sensing PCB Power supply Figure 3-8-1 3 - 41...

  • Page 152: B. Video Controller Pcb Unit

    CHAPTER 3 B. Video Controller PCB Unit 2) Remove the 2 screws (M3) and the 1. Removal from the printer guide. 1) Loosen the 2 screws then pull out the 3) Remove the 1 screw (M4) and the 4 video controller PCB unit. screws (M3), then take out the video controller PCB.

  • Page 153: C. Dc Controller Pcb

    CHAPTER 3 b. Removal of RAM DIMM/ROM DIMM C. DC Controller PCB (option) 1) Remove the high-voltage power supply 1) Push down the socket lever to remove unit following steps 1-3 on Page 3-47. the RAM DIMM or ROM DIMM. Be sure 2) Disconnect the 19 connectors from the not to touch the elements.

  • Page 154: D. Pick-Up Pcb

    CHAPTER 3 D. Pick-up PCB E. Multi-purpose Tray PCB 1) Remove the pick-up unit following steps 1) Remove the multi-purpose tray pick-up 1-7 on Page 3-9. unit following steps 1-6 on Page 3-12. 2) Disconnect the 6 connectors. 2) Remove the multi-purpose tray pick-up 3) Remove the screw, disconnect the 2 unit fan following steps 2-3 on Page 3- claws, and take out the pick-up PCB.

  • Page 155: F. Switch/Sensor Pcb

    CHAPTER 3 6) Remove the screw F. Switch/Sensor PCB 7) Unhook the claw, and then remove the 1) Remove the upper cover unit. multi-purpose tray PCB. 2) Remove the right rear and rear covers. 3) Remove the left rear cover. 4) Remove the connector, the 2 screws, and then the fan duct.
  • Page 156 CHAPTER 3 7) Remove the 5 screws and the shield 11) Disconnect the connector, remove the 2 plate. screws, pull board. Disconnect the other connector and remove the switch/sensor PCB. Screws Shield plate Connectors Figure 3-8-13 Screws Switch/sensor PCB 8) Remove the DC controller PCB following steps 1-4 on Page 3-43.

  • Page 157: Unit

    CHAPTER 3 G. High-voltage Power Supply Unit H. Cassette Paper-size Sensing PCB 1) Remove the right rear and rear covers. 1) Remove the cassettes. 2) Disconnect the 2 connectors. 2) Remove the power supply following 3) Remove the screw (M4), the 2 screws steps 1-7 on Page 3-48.

  • Page 158: I. Power Supply

    CHAPTER 3 Power Supply 5) Remove the 3 connectors. 1) Remove the left rear and rear covers. 2) Disconnect the connector, remove the 2 screws, then take out the fan duct. Connectors Connector Screws Figure 3-8-21 Fan duct 6) Remove the 2 screws and the power Figure 3-8-19 supply unit fan.

  • Page 159: Troubleshooting

    CHAPTER 4 TROUBLESHOOTING PREFACE ....... 4-1 VI. MALFUNCTION STATUS IMAGE DEFECTS....4-8 TROUBLESHOOTING ....4-21 III. PAPER JAMS VII. MEASUREMENT AND TROUBLESHOOTING ....4-14 ADJUSTMENT ......4-28 IV. PAPER TRANSPORT VIII. MAINTENANCE AND TROUBLESHOOTING ....4-18 SERVICING......4-35 MALFUNCTION IX. LOCATION OF CONNECTORS . 4-48 TROUBLESHOOTING ....

  • Page 161: Flowchart

    CHAPTER 4 I. PREFACE A. Malfunction Diagnosis Flowchart The malfunctions that occur in the printer fall into five main factors; “image defects,” “paper jams,” “paper transport troubleshooting,” “malfunction troubleshooting,” and “malfunction sta- tus troubleshooting.” If a malfunction occurred in the printer, the service technician is to find the factor according to the malfunction diagnosis flowchart and to clear the problem following the action procedure for each malfunction.
  • Page 162 CHAPTER 4 Initial check execution Power ON Refer to the item, "malfunction Displays "operator call" Displays "READY"? troubleshooting" or "service call"? Refer to the item, "malfunction Is test print executable? status troubleshooting" (Note 1) Make a test print Refer to the item, "paper jams" Occurs paper jam? Delivers paper Refer to the item, "paper...
  • Page 163 CHAPTER 4 Notes : 1. Before executing a test print, make sure to select the same pick-up source and deliv- ery source that were used when the malfunction occurred according to the informa- tion given by the user. If the information is not available, make test prints with all feasible combination of paper source and delivery source in the printer, and find out the factor.

  • Page 164: B. Initial Check

    CHAPTER 4 B. Initial Check Check the following items before making a diagnosis of malfunction. If any failure is found, the service technician is to clear the problem and to give the instruction to the user. 1. Installation environment Make sure that the requirements stated below meet when installing printer: a.

  • Page 165: C. Test Print

    CHAPTER 4 C. Test Print The test print is divided into two types: engine test print and controller test print. If a malfunction occurs in this printer, make a test print and assess the abnormality of the printer. 1. Engine test print Test print patterns of horizontal lines are printed in this test print.
  • Page 166 CHAPTER 4 2. Controller test print The following items can be printed by selecting and executing a TEST MENU: • SHOW PAGE COUNT Displays the total number of pages printed. The total page number is only shown briefly on the display but does not print. The page count prints in the TEST PRINT. •...
  • Page 167 AUTOCONT = OFF DENSITY = 7 PWRSAV = 15 MIN ECONOMY MODE = OFF REFINE = ON Canon, the Canon logo and LBP are trademarks of Canon Inc. PCL and PCL5 are trademarks of Hewlett-Packard Company. Figure 4-1-3 4 - 7...

  • Page 168: Ii. Image Defects

    CHAPTER 4 II. IMAGE DEFECTS If the factor of the malfunction is identified as “image defects” by the malfunction diagnosis flow- chart (Figure 4-1-1), find out the cause of the failure according to the table below and clear the problem. Table 4-2-1 •...
  • Page 169 CHAPTER 4 II-2. Dark <Possible causes> 1. The image density is not adjusted correctly. Action: Adjust the image density by operating the external device. 2. The drum grounding contact of the high-voltage power supply is not making a good connec- tion with the cartridge contact.
  • Page 170 CHAPTER 4 Action: Replace the cartridge. 3. The high-voltage power supply PCB is defective. Action: Replace the high-voltage power supply PCB. 4. The DC controller PCB is defective. Action: Replace the DC controller PCB. II-5. Dots in vertical line <Possible causes> 1.
  • Page 171 CHAPTER 4 II-8. Black horizontal lines <Possible causes> 1. Horizontal scar(s) on photosensitive drum Action: Replace the cartridge. 2. The upper fixing roller is dirty, deformed, or worn. Action: Replace the upper fixing roller. II-9. Dirt <Possible causes> 1. The print paper is dirty. Action: Replace with new paper.
  • Page 172 CHAPTER 4 Action: Remove the foreign materials. 5. The upper fixing roller surface is damaged or dented. Action: Replace the upper fixing roller. 6. The mirror in the laser/scanner unit is dirty. Action: Replace the laser/scanner unit. II-12. White horizontal lines <Possible causes>...
  • Page 173 CHAPTER 4 Table 4-2-2 Periods of appearance of dirt, blank spots on images Phenomenon Diameter Period on Problem location Dirt on back (mm) image (mm) Dirt Blank spot Poor fixing of paper Transfer charging roller 17.15 About 54 Upper fixing roller About 141 Lower fixing roller About 100...

  • Page 174: Troubleshooting

    CHAPTER 4 III. PAPER JAMS TROUBLESHOOTING Paper passes through 4 major sections of the printer. Figure 4-3-1 III-1: Multi-purpose tray pick-up block III-2: Cassette pick-up block III-3: Transfer and feed block III-4: Fixing and delivery block If the factor of the malfunction is identified as “paper jams” by the malfunction diagnosis flow- chart (Figure 4-1-1), check the block in which the paper jam occurred, and find out the defec- tive part.
  • Page 175 CHAPTER 4 III-1. Multi-purpose tray pick-up block <Possible causes> 1. Curled paper Action: Straighten the paper, and then instruct the user. 2. The multi-purpose tray pick-up roller is worn, deformed, or dirty. Action: Clean the tray pick-up roller if it is dirty. Replace if worn or deformed. 3.
  • Page 176 CHAPTER 4 Action: Replace the pick-up PCB. 7. The DC controller PCB is defective. Action: Replace the DC controller PCB. III-3. Transfer and feed block <Possible causes> 1. The registration roller is worn, deformed, or dirty. Action: Clean the registration roller if it is dirty. Replace if worn or deformed. 2.
  • Page 177 CHAPTER 4 8. The fixing unit delivery sensor lever does not move smoothly or is damaged. Action: Adjust the lever so that it moves smoothly. If it is damaged, replace it. 9. The fixing unit delivery roller is worn. Action: Replace the fixing unit delivery roller. 10.

  • Page 178: Troubleshooting

    CHAPTER 4 IV. PAPER TRANSPORT TROUBLESHOOTING If the factor of the malfunction is identified as “paper transport troubleshooting” by the mal- function diagnosis flowchart (Figure 4-1-1), execute the followings and mend the defect. IV-1. Multiple Paper Feed <Possible causes> 1. If this problem occurs with the multi-purpose tray, perform step 4 and subsequent steps. 2.
  • Page 179 CHAPTER 4 2. The spring of the registration roller unit is out of place. Action: If the spring is out of place, set it in the right position or replace it with new one. 4 - 19...
  • Page 180 CHAPTER 4 V. MALFUNCTION TROUBLESHOOTING If the factor of the malfunction is identified as “malfunction troubleshooting” by the malfunction diagnosis flowchart (Figure 4-1-1), execute the followings and mend the malfunction. V-1. No AC Power Input <Possible causes> 1. The correct voltage is not present at the outlet. Action: Inform the customer that the correct line voltage is not available at the outlet.
  • Page 181 CHAPTER 4 VI. MALFUNCTION STATUS TROUBLESHOOTING If the factor of the malfunction is identified as “malfunction status troubleshooting” by the mal- function diagnosis flowchart (Figure 4-1-1), execute the followings and mend the malfunction. VI-1. "10.1 ERROR FUSER CALL FOR SERVICE" Fixing unit failure (abnormal low temperature) "10.2 ERROR FUSER CALL FOR SERVICE"...
  • Page 182 CHAPTER 4 VI-2. "10.3 ERROR FUSER CALL FOR SERVICE" Fixing unit failure (abnormal high temperature) <Possible causes> 1. The thermistor has shorted. Action: Turn the power OFF and remove the fixing unit. Measure the resistance between the fixing unit connector J50B-5 (FSRTH) and J50B-4 (GNDTH). The connector J50B is the upper terminal of the left connector.
  • Page 183 CHAPTER 4 2. The laser drive signal line connectors are loose. Action: Reconnect connector J1001 on the laser driver PCB, and connector J202 on the DC controller PCB. 3. The laser/scanner unit is defective. Action: Replace the laser/scanner unit. 4. The DC controller PCB is defective. Action: Replace the DC controller PCB.
  • Page 184 CHAPTER 4 Action: Disconnect connector J216 on the DC controller PCB. Turn the power switch ON and measure the voltage between connector J216-1 (FAN2D) and J216-3 (GND) on the DC controller PCB. If the voltage changes from 0 to more than 18V, replace the power supply fan.
  • Page 185 CHAPTER 4 Action: Replace the DC controller PCB. VI-12. "14.1 ERROR AUX TRAY CALL FOR SERVICE" Lifting plate failure <Possible causes> 1. Lifting plate drive unit parts are damaged. Action: Replace any damaged parts. 2. The lifting plate position sensor is defective. Action: Check the sensor state using the printer driver tester.
  • Page 186 CHAPTER 4 VI-15. Displays "LOAD<MEDIA><SIZE> IN UPPER" or "LOAD<MEDIA><SIZE>IN LOWER" when the specified cassette is loaded with paper. <Possible causes> 1. Pull out the upper and lower cassettes, and install the specified cassette in the printer. If the lifter does not lift, perform step 5 and subsequent steps. 2.
  • Page 187 CHAPTER 4 VI-17. "PRINTER OPEN" message appears when the cover is closed. <Possible causes> 1. The projection for the delivery cover is damaged. Action: Replace the delivery cover. 2. The projection for the upper cover is damaged. Action: Replace the upper cover. 3.
  • Page 188 CHAPTER 4 VII. MEASUREMENT AND ADJUSTMENT A. Mechanical Adjustment 1. Checking the nip width of the lower fixing roller The fixing unit is not designed to allow adjustment of the pressure (nip width); however, the incorrect nip width can cause fixing problems. Follow the procedures below to check the nip width: 1) Make an all-black print using an EP-72 cartridge, and take the print to the customer’s site.
  • Page 189 CHAPTER 4 The value of "a" drops by 0.5mm for each notch moved. Leading edge of paper The value of "a" rises by 0.5mm for each notch moved. Figure 4-7-2 B. Electrical Adjustment • No electrical adjustment for this printer. 4 - 29...
  • Page 190 CHAPTER 4 C. Variable Resistors, LEDs, Test Pins, Jumpers and Switches on PCBs Only the variable resistors, LEDs, test pins, jumpers, and switches required for after-sales ser- vice in the field are listed below. All other variable resistors, test pins, etc. are for the factory use only. The adjustment and check using these test pins, etc.
  • Page 191 CHAPTER 4 Table 4-7-1 SW No. Function SW201 Test print switch (Note) LED201 Sensor check Note: Sensor check is available only when the service mode is specified by the printer driver tester. (Refer to the operating manual of the printer driver tester for details.) 2.
  • Page 192 CHAPTER 4 3. Cassette paper size detection PCB J1601 SW1604 SW1603 SW1602 SW1601 Figure 4-7-5 Table 4-7-3 SW No. Function SW1601 Cassette paper-size sensing SW1602 switch SW1603 (See page 2-47.) SW1604 4 - 32...
  • Page 193 CHAPTER 4 4. High-voltage power supply PCB VR702 VR701 TB706 J701 TB705 TB703 TB702 TB704 TB701 T704 Figure 4-7-6 Table 4-7-4 VR No. Function VR701 For factory use VR702 4 - 33...
  • Page 194 CHAPTER 4 This page intentionally left blank 4 - 34...

  • Page 195: Servicing

    CHAPTER 4 VIII. MAINTENANCE AND SERVICING A. Periodic Replacement Parts • No parts require periodic replacement in this printer. Note: Periodic replacement parts are the parts that must be replaced at regular intervals, even if they are functioning properly and show no signs of wear. (Failure of these parts can seriously affect the performance.) These parts should be replaced during a regular service visit closest to the end of the parts expected life.

  • Page 196: Visit

    CHAPTER 4 D. Cleaning during a Service Visit Following the procedures below, clean the printer during service visit. 1. Transfer charging roller As a general rule, the transfer charging roller is not to be touched or cleaned. If it is unavoid- able, clean the roller with dry lint free paper (which produces little paper dust).
  • Page 197 CHAPTER 4 Figure 4-8-1 1: Fixing separation guide 7: Registration roller unit 2: Fixing separation claw 8: Separation pad 3: Fixing entry guide 9: Multi-purpose tray pick-up roller 4: Feed guide 10: Feed roller 5: Transfer charging roller 11: Separation roller 6: Transfer guide 12: Pick-up roller 4 - 37...

  • Page 198: E. Standard Tools

    CHAPTER 4 E. Standard Tools The standard tools required for servicing the printer are listed below. Table 4-8-2 Tool No. Remarks Tool name Tool case TKN-0001 Jumper wire TKN-0069 With clips Thickness gauge CK-0057 0.02 mm to 0.3 mm Compression spring scale CK-0058 For checking cassette spring strength (0–600 g)

  • Page 199: F. Special Tools

    CHAPTER 4 F. Special Tools In addition to the standard tools, the following special tools are required for servicing the print- Table 4-8-3 Tool name Tool No. Shape RANK Application/remarks Printer driver RY9-0104 Used for checking printer tester operations. Note: Ranks A: Tools used for part replacement or adjustment on site.

  • Page 200: Tester) Explanation

    CHAPTER 4 G. Special Tools (printer driver tester) Explanation Figure 4-8-2 1. Outline The tester runs the printer independently to test operation of printer and options (duplexing unit and envelope feeder). It has three uses which are outlined below; a. Commands the printer to print out solid black, horizontal lines, vertical lines and solid blank images.
  • Page 201 4 bit 3 bit 2 bit 1 DISPLAY SET UP CANON INC. RY9-0104 MADE IN JAPAN Figure 4-8-3 DATA LED Monitors the status of the various loads and sensors sent from the printer with the 16 LEDs. +24VA LED Lights up when +24VA is being supplied to the tester.
  • Page 202 CHAPTER 4 Table 4-8-4 DISPLAY DISPLAY (displays the status of the sensors SET UP (sets up various data sent to the /SET UP and loads sent from the printer) printer) Mode Operator call/ service call Service call/ misprint details/ warning/ fan Print density select malfunction details 2 (72X) Pick-up unit configuration/ select pick-up...
  • Page 203 CHAPTER 4 4. Operation Method a. Preparation 1) Switch OFF the printer. 2) Connect the tester connector 1 to the envelope feeder connector (J24) in the printer. 3) Turn ON the printer. 4) When the printer is in standby mode, start performing checks with the tester. Clip Connector 2 Connector 1...
  • Page 204 6 bit 5 bit 4 bit 3 bit 2 bit 1 DISPLAY SET UP CANON INC. RY9-0104 MADE IN JAPAN Figure 4-8-5 Table 4-8-6 Mode select 1 Display Content Details/ Set Up Content Details Fixing unit malfunction BD malfunction...
  • Page 205 6 bit 5 bit 4 bit 3 bit 2 bit 1 DISPLAY SET UP CANON INC. RY9-0104 MADE IN JAPAN Horizontal lines (image pattern) setting Duplex print setting Face-up tray delivery allocation Multi-purpose tray pick-up allocation Figure 4-8-6 Notes: 1. After setting a test print in this mode, the data will remain the same even if the test print is set in another mode.
  • Page 206 CHAPTER 4 Table 4-8-7 Mode select 8 Display content details Initial residual jam Electrical unit fan malfunction Fixing unit fan malfunction SET UP Print Pick-up slot Delivery slot Image pattern mode bit 8 bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1...

  • Page 207: H. Solvents And Oil List

    CHAPTER 4 H. Solvents and Oil List Table 4-8-9 Material name Components Remarks Alcohol: ethyl Cleaning: plastic, • Purchase locally (pure or rubber CHOH • Flammable: keep away denatured) or from flame isopropyl (pure or denatured) MEK (methyl Cleaning: oil and toner CO-C •...

  • Page 208: Ix. Location Of Connectors

    CHAPTER 4 IX. LOCATION OF CONNECTORS J202 J205 J1401 J203 J208 J215 J229 J206 J207 J210 J218 J1001 J216 J221 J1601A J1601B J1402 J225 J219 J209 J1201 J1206 J1204 J1205 J1202 J1203 Figure 4-9-1 4 - 48...
  • Page 209 CHAPTER 4 J204 J222 J213 J214 J217 J1302 J1304 J1303 J1301 J102 Figure 4-9-2 4 - 49...
  • Page 210 CHAPTER 4 4 - 50...

  • Page 211: I. General Timing Chart

    APPENDIX GENERAL TIMING CHART ..A-1 III. LIST OF SIGNALS ....A-5 GENERAL CIRCUIT DIAGRAM A-3 IV. MESSAGES TABLE ....A-11...
  • Page 213 GENERAL TIMING CHART • Timing chart for two consecutive prints on A4 paper (Lower cassette feed - face-down tray delivery) Power switch ON (Unit: Seconds) Operation WAIT STBY INTR PRINT LSTR STBY 160 C 169 C 190 C 170 C 169 C control 169 C control control...
  • Page 215 II.@æH} GENERAL CIRCUIT DIAGRAM-1/2 Registration Electrical From fixing unit paper sensor unit fan Scanner Operation Laser driver Registration clutch TB705 motor FAN3 Fixing unit/ panel Video controller 4 3 2 1 Scanner unit 7 6 5 4 3 2 1 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 10 1 2 3...
  • Page 216 GENERAL CIRCUIT DIAGRAM-2/2 J3/4 J6/7 MD31 nHREST nWR0 MD30 MD29 MD28 MD27 IOD7 nRD0 MD26 MD25 nCLK IOD8 MD24 nCLKEN IOD6 N.C. N.C. BMA0 IOD9 N.C. BMA1 BMA2 IOD5 N.C. N.C. BMA3 BMA4 IOD10 nSTROBE BMA5 BMA6 N.C. IOD4 nIDE INT BMA10 N.C.
  • Page 217 APPENDIX III. LIST OF SIGNALS A. Input/output signals to/from DC controller PCB Connector Abbreviation I/O Logic Signal name J201 /FPCS OPERATION PANEL CONTROLLER CHIP SELECT signal Reservrd /VSREQ VSYNC REQUEST signal /VSYNC VERTICAL SYNC signal /STS STATUS signal /CMD COMMAND signal /CPSEL COMTROLLER POWER SELCT signal ANALOG...
  • Page 218 APPENDIX Connector Abbreviation I/O Logic Signal name J201 BEAM DETECTION signal J202 DRVES LASER MALFUNCTION DETECTION signal ANALOG N.C. VIDEO signal /VDO VIDEO signal /LON LASER ON signal /LENBL VIDEO ERABLE signal J203 /FPO OPERATION PANEL SERIAL OUTPUT signal /FPI OPERATION PANEL SERIAL INPUT signal /FPCS OPERATION PANEL CONTROLLER CHIP SELECT signal...
  • Page 219 APPENDIX Connector Abbreviation I/O Logic Signal name J207 /SCNRDY SCANNER MOTOR READY signal /SCND SCANNER MOTOR DRIVE signal /SCNCLK SCANNER MOTOR CONTOL CLOCK signal 24VGND +24VA J208 FAN1D FAN MOTOR 1 DRIVE signal ANALOG /FAN1S FAN MOTOR 1 ROTATING DETECTION signal 24VGND J209 /REGCLD...
  • Page 220 APPENDIX Connector Abbreviation I/O Logic Signal name J215 USIZE4 UPPER CASSETTE PAPER SIZE SENSE signal USIZE3 UPPER CASSETTE PAPER SIZE SENSE signal USIZE2 UPPER CASSETTE PAPER SIZE SENSE signal USIZE1 UPPER CASSETTE PAPER SIZE SENSE signal J216 FAN2D FAN MOTOR 2 DRIVE signal ANALOG /FAN2S FAN MOTOR 2 ROTATING DETECTION signal...
  • Page 221 APPENDIX Connector Abbreviation I/O Logic Signal name J220 TRFVCNT TRANSFER BIAS CONTROLL signal ANALOG TRFVSNS TRANSFER BIAS MONITOR signal ANALOG /TRFCCD TRANSFER BIAS CONSTANT CURRENT DRIVE signal TRFCLK TRANSFER BIAS FREQUENCY OUTPUT signal N.C. HVTCLK HIGH-VOLTAGE BIAS FREQUENCY OUT PUT signal /DEVACD DEVELOPING AC BIAS DRIVE signal DEVACCLK...
  • Page 222 APPENDIX This page intentionally left blank A - 10...
  • Page 223 APPENDIX IV. MESSAGES TABLE Action Message Meaning COLD RESET Displays when the COLD RESET (Letter or A4) No action required although the Power-On sequence is selected. printer will be reset to its factory defaults and any unique settings will have to be reset. COLD RESET A4 Displays when Factory Reset - A4 No action required.
  • Page 224 APPENDIX Message Meaning Action -envsize RESETTING PRINT- Displays when TEST/RESET PRINTER item is No action required selected RESTORING Displays when TEST/FACTORY DEFAULTS No action required. DEFAULTS item is selected. MEMORY OVER- Memory overflow. The printer received more The job will resume after 10 sec- FLOW data than it can fit into its available memory.
  • Page 225 APPENDIX Message Meaning Action restart after the continue key is pressed. DISK ALMOST FULL Warning message when the Disk is 70+% full. Delete pcl/ps, fonts/macros/files or format the disk to clear the message. The message doesn't clear with power cycle or COLD RESET.
  • Page 226 APPENDIX Message Meaning Action the flash fails, FLASH ERROR will be displayed. Remove the faulty flash rom and replace with new flash. #### Where #### = MAILBOX, JOB SEPARATION, Press + to accept (confirm) the +TO CONFIRM/- STACKER, or SORTING. The operator is being mode change in the sorter or CANCEL asked to confirm the mode change in the...
  • Page 227 APPENDIX Message Meaning Action Media Type: PLAIN - Plain LETTERHEAD - Letterhead TRANSPARENCY - Transparency LABELS - Labels BOND - Bond RECYCLED - Recycled COLOR - Color CARDSTOCK - Cardstock ROUGH - Rough paper CUSTOM1 - or user defined media type CUSTOM2 - or user defined media type CUSTOM3 - or user defined media type CUSTOM4 - or user defined media type...
  • Page 228 APPENDIX Message Meaning Action deck) is missing. DECK2 MISSING The specified lower cassette (2x500 sheet Reinsert the lower cassette. deck) is missing. OUTPUT FULL The specified face-down tray is paper full. Remove the paper from the face- STD. TRAY down tray. OUTPUT FULL The specified output tray of the stapler stack- Remove the paper from the tray...
  • Page 229 APPENDIX Message Meaning Action unit. 10 PAPER JAM Paper jam has occurred near the duplexing unit. 11 PAPER JAM Paper jam has occurred in the duplexing unit. 12 PAPER JAM Paper jam has occurred in the duplexing unit. 13.1 PAPER JAM Paper jam has occurred in the 2,000 sheet Check the deck.
  • Page 230 APPENDIX Message Meaning Action 19.2 SORTER JAM Jam at entrance sensor - Stay Jam paper and close cover. 19.3 SORTER JAM Jam at entrance sensor - Delay Jam 19.4 SORTER JAM Jam at entrance sensor - Early Jam 20.1 SORTER JAM Jam at reversing sensor - Initial Jam 20.2 SORTER JAM Jam at reversing sensor - Stay Jam...
  • Page 231 APPENDIX Message Meaning Action CALL FOR SERVICE 11.1 ERROR SCAN- Scanner motor malfunction (start up). Perform the troubleshooting pro- cedure described in section VI of CALL FOR SERVICE Chapter 4. 11.2 ERROR SCAN- Scanner motor malfunction (rotation). CALL FOR SERVICE 11.3 ERROR SCAN- BD/Laser malfunction CALL FOR SERVICE...
  • Page 232 APPENDIX Message Meaning Action CALL FOR SERVICE 16.2 ERROR Malfunction of swing-guide STACKER CALL FOR SERVICE 17 ERROR Unknown Stacker Error. CALL FOR SERVICE 17.1 ERROR Malfunction of paper full sensor STACKER CALL FOR SERVICE 18 UPPER ERROR Malfunction of UPPER tray Refer to Chapter 4 (troubleshoot- CALL FOR SERVICE ing) of the 2,000 sheet deck or...
  • Page 233 Prepared by PERIPHERAL PRODUCTS QUALITY ADVANCEMENT DIV. PERIPHERAL PRODUCTS TECHNICAL DOCUMENTATION DEPT. CANON INC Printed in Japan REVISION 0 ( JAN. 1999 ) 5-1, Hakusan 7–chome, Toride-City, Ibaraki-Pref. 302-8501, Japan...
  • Page 234 The printing paper contains 70% waste paper. PRINTED IN JAPAN (IMPRIME AU JAPON) 0199AT0.70 CANON INC.

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