Canon iR2422 series Service Manual
  1. Manuals
  2. Brands
  3. Canon Manuals
  4. All in One Printer
  5. iR2422 series
  6. Service manual

Canon iR2422 series Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Service Manual

iR2422/2420/2320/2318 Series
May 12 2014

Advertisement

Table of Contents
loading

Related Manuals for Canon iR2422 series

Summary of Contents for Canon iR2422 series

  • Page 1: Service Manual

    Service Manual iR2422/2420/2320/2318 Series May 12 2014...
  • Page 3 Canon will release technical information as the need arises. In the event of major changes in the contents of this manual over a long or short period, Canon will issue a new edition of this manual.
  • Page 4 Introduction Symbols Used This documentation uses the following symbols to indicate special information: Symbol Description Indicates an item of a non-specific nature, possibly classified as Note, Caution, or Warning. Indicates an item requiring care to avoid electric shocks. Indicates an item requiring care to avoid combustion (fire). Indicates an item prohibiting disassembly to avoid electric shocks or problems.
  • Page 5 Introduction The following rules apply throughout this Service Manual: 1. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with refer- ence to the timing of operation. In the diagrams, represents the path of mechanical drive; where a signal name accompanies the symbol , the arrow indicates the direction of the electric signal.

  • Page 7: Table Of Contents

    Contents Contents Chapter 1 Introduction 1.1 System Construction ..........................1- 1 1.1.1 Pickup/ Delivery /Original Handling Accessories System Configuration (1-cassette/Platen cover (option) model) 1- 1 1.1.2 Pickup/ Delivery /Original Handling Accessories System Configuration (1-cassette/Platen cover (standard) model)1- 1.1.3 Pickup/ Delivery /Original Handling Accessories System Configuration (2-cassette/Duplex unit (option) model) .. 1- 3 1.1.4 Pickup/ Delivery /Original Handling Accessories System Configuration (2-cassette/Duplex unit (standard) model) .
  • Page 8 Contents 2.1.3 Before Starting the Work (120V TW) ........................2- 3 2.1.4 Before Starting the Work (230V KR)........................2- 5 2.1.5 Before Starting the Work (230V EUR) ........................2- 7 2.1.6 Before Starting the Work (230V CSPL) ........................2- 9 2.1.7 Before Starting the Work (230V CCN) ........................2- 11 2.2 Unpacking and Installation ........................
  • Page 9 Contents mode)................................... 4- 1 4.1.3 Major Components (When the original size detection sensor is equipped for BOOK mode) ........4- 2 4.1.4 Major Components (When the original size detection sensor is not equipped for BOOK mode) ......4- 3 4.1.5 Control System Configuration (When the original size detection sensor is equipped for BOOK mode) ....4- 3 4.1.6 Control System Configuration (When the original size detection sensor is not equipped for BOOK mode) ...
  • Page 10 Contents Chapter 5 Laser Exposure 5.1 Construction ............................... 5- 1 5.1.1 Overview ..................................5- 1 5.1.2 Specifications and Control Mechanism........................5- 1 5.1.3 Main Components..............................5- 2 5.1.4 Control System Configuration ..........................5- 3 5.2 Various Controls ............................5- 4 5.2.1 Controlling the Laser Activation Timing ........................5- 4 5.2.1.1 Laser Emission ON/OFF Control .............................
  • Page 11 Contents 6.10.2.2 Precautions about Installation of Developing Assembly ...................... 6- 11 6.10.2.3 Procedure after Replacing the Developing Assembly......................6- 11 6.10.3 Transfer Charging Roller ............................. 6- 12 6.10.3.1 Removing the Transfer Charging Roller..........................6- 12 Chapter 7 Pickup/Feeding System 7.1 Construction ...............................7- 1 7.1.1 Specifications/Configuration/Operation Methods ....................
  • Page 12 Contents 7.5.7 Cassette Pickup Solenoid ............................7- 19 7.5.7.1 Removing the Cassette Pickup Solenoid..........................7- 19 7.5.8 Manual Pickup Roller .............................7- 20 7.5.8.1 Removing the Multifeeder Pickup Roller..........................7- 20 7.5.9 Manual Feed Tray paper sensor..........................7- 20 7.5.9.1 Removing the Multifeeder Paper Presence/Absence Sensor....................7- 20 7.5.10 Manual Feed Pickup Solenoid ..........................7- 21 7.5.10.1 Removing the Multifeeder Pickup Solenoid .........................
  • Page 13 Contents 9.3.2.1 Protective Mechanisms................................9- 6 9.4 Parts Replacement Procedure ........................9- 7 9.4.1 External Covers ............................... 9- 7 9.4.1.1 Delivery Tray.................................... 9- 7 9.4.1.2 Right Cover (Lower)................................. 9- 7 9.4.1.3 Right Cover (Upper)................................. 9- 7 9.4.1.4 Rear Cover....................................9- 7 9.4.1.5 Left Cover (Lower) ...................................
  • Page 14 Contents Chapter 12 Correcting Faulty Images 12.1 Making Initial Checks..........................12- 1 12.1.1 Site Environment..............................12- 1 12.1.2 Checking the Paper..............................12- 1 12.1.3 Checking the Placement of Paper........................12- 1 12.1.4 Checking the Durables............................12- 1 12.1.5 Checking the Units and Functional Systems......................12- 1 12.1.6 Others ..................................12- 3 12.2 Outline of Electrical Components ......................
  • Page 15 Contents 14.6 Display ..............................14- 7 14.6.1 Version Display..............................14- 7 14.6.2 Error Code Display .............................. 14- 7 14.7 Report ..............................14- 7 14.7.1 Outline ................................. 14- 7 14.7.2 Service Data List..............................14- 9 14.7.3 Service Label ............................... 14- 9 14.7.4 Error Log Report ..............................14- 9 14.8 Clear Data.............................14- 10 14.8.1 Outline ................................
  • Page 16 Contents...

  • Page 17: Chapter 1 Introduction

    Chapter 1 Introduction...
  • Page 19 Contents Contents 1.1 System Construction ..............................1-1 1.1.1 Pickup/ Delivery /Original Handling Accessories System Configuration (1-cassette/Platen cover (option) model) ....1-1 1.1.2 Pickup/ Delivery /Original Handling Accessories System Configuration (1-cassette/Platen cover (standard) model) ....1-2 1.1.3 Pickup/ Delivery /Original Handling Accessories System Configuration (2-cassette/Duplex unit (option) model) ....1-3 1.1.4 Pickup/ Delivery /Original Handling Accessories System Configuration (2-cassette/Duplex unit (standard) model) ....

  • Page 21: System Construction

    Chapter 1 1.1 System Construction 1.1.1 Pickup/ Delivery /Original Handling Accessories System Configuration (1-cassette/Platen cover (option) model) 0020-4194 The configuration is as shown in the following figure: [10] F-1-1 DADF-P2 Platen Cover Type J Finisher-U2 Additional Finisher Tray-C1 Inner 2-way Tray-E2 Cassette Feeding Module-S1 Cassette Feeding Module-T1 Duplex Unit-A1...

  • Page 22: Pickup/ Delivery /Original Handling Accessories System Configuration (1-Cassette/Platen Cover (Standard) Model)1

    Chapter 1 1.1.2 Pickup/ Delivery /Original Handling Accessories System Configuration (1-cassette/Platen cover (standard) model) 0020-4646 The configuration is as shown in the following figure: [10] F-1-2 DADF-P2 Platen Cover Type J Finisher-U2 Additional Finisher Tray-C1 Inner 2-way Tray-E2 Cassette Feeding Module-S1/S2*2 Cassette Feeding Module-T1/T2*2 Duplex Unit-A1 Power Supply Kit-Q1...

  • Page 23: Pickup/ Delivery /Original Handling Accessories System Configuration (2-Cassette/Duplex Unit (Option) Model)

    Chapter 1 1.1.3 Pickup/ Delivery /Original Handling Accessories System Configuration (2-cassette/Duplex unit (option) model) 0020-4648 The configuration is as shown in the following figure: F-1-3 DADF-P2 Platen Cover Type J Finisher-U2 Additional Finisher Tray-C1 Inner 2-way Tray-E2 Cassette Feeding Module-T2 Duplex Unit-A1 Power Supply Kit-Q1 Document Tray-J1...

  • Page 24: Pickup/ Delivery /Original Handling Accessories System Configuration (2-Cassette/Duplex Unit (Standard) Model)

    Chapter 1 1.1.4 Pickup/ Delivery /Original Handling Accessories System Configuration (2-cassette/Duplex unit (standard) model) 0020-4659 The configuration is as shown in the following figure: F-1-4 DADF-P2 Platen Cover Type J Finisher-U2 Additional Finisher Tray-C1 Inner 2-way Tray-E2 Cassette Feeding Module-T1 Duplex Unit-A1 Power Supply Kit-Q1 Document Tray-J1...

  • Page 25: Reader Heater/ Cassette Heater System Configuration

    Chapter 1 1.1.5 Reader Heater/ Cassette Heater System Configuration 0020-4195 The configuration is as shown in the following figure: F-1-5 Reader Heater Cassette Heater Heater PCB *1: To operate the heaters, a heater PCB is required. These parts are supplied as service parts, not the standard items. 1.1.6 Printing/Transmitting Accessories System Configuration 0020-4196 This machine does not allow the print function and the transmission function to be added.

  • Page 26: Product Specifications

    Chapter 1 1.2 Product Specifications 1.2.1 Names of Parts 1.2.1.1 External View (1-cassette model) 0020-4190 [11] [13] [12] [10] [14] [16] [15] F-1-6 Copyboard cover (*1) Left door Reader front cover [10] Left cover (rear) Control panel [11] Reader left cover Delivery tray [12] Reader right cover...

  • Page 27: Cross-Section

    Chapter 1 1.2.1.3 Cross-Section 0020-4191 [18] [17] [16] [15] [14] [13] [12] [11] [10] [9] [8] [7] F-1-8 CIS unit [10] Separation roller Reader unit [11] Vertical path roller Manual feed pickup roller Laser scanner unit [12] DC power supply PCB [13] Registration roller Transfer roller...

  • Page 28: Using The Machine

    Chapter 1 1.2.2 Using the Machine 1.2.2.1 Turning On the Power Switch (1-cassette model) 0020-4197 The machine possesses 2 power switches: main power switch and control power switch. Normally (i.e., unless the machine is in a sleep state), the machine will be supplied with power when you turn on its main power switch.

  • Page 29: Turning On The Power Switch (2-Cassette Model)

    Chapter 1 1.2.2.2 Turning On the Power Switch (2-cassette model) 0020-4805 The machine possesses 2 power switches: main power switch and control power switch. Normally (i.e., unless the machine is in a sleep state), the machine will be supplied with power when you turn on its main power switch. F-1-10 [1]Control panel power switch [2]Main power lamp...

  • Page 30: When Turning Off The Main Power Switch (1-Cassette Model)

    Chapter 1 1.2.2.3 When Turning Off the Main Power Switch (1-cassette model) 0020-4198 <During printing or fax data transmission/reception> Be sure to operate the main power switch while the Processing/Data lamp on the control panel is not lit. (Turning off the main switch during printing or fax data transmission/reception can erase the data being processed.) F-1-11 1-10...
  • Page 31 Chapter 1 <During downloading> Do not turn off the power switch or ON/OFF switch on the control panel. (Turning off the main power switch during downloading can make this machine inoperative.) F-1-12 1-11...

  • Page 32: When Turning Off The Main Power Switch (2-Cassette Model)

    Chapter 1 1.2.2.4 When Turning Off the Main Power Switch (2-cassette model) 0020-4807 <During printing or fax data transmission/reception> Be sure to operate the main power switch while the Processing/Data lamp on the control panel is not lit. (Turning off the main switch during printing or fax data transmission/reception can erase the data being processed.) F-1-13 1-12...

  • Page 33: Control Panel

    Chapter 1 <During downloading> Do not turn off the power switch or ON/OFF switch on the control panel. (Turning off the main power switch during downloading can make this machine inoperative.) F-1-14 1.2.2.5 Control Panel 0020-4199 1-13...

  • Page 34: User Mode Items

    Chapter 1 [10] [11] [30] [29] [28] [26] [25] [23] [22] [19] [17] [15] [14] [13] [12] [27] [24] [21] [20] [18] [16] F-1-15 System Monitor key [16] Clear key SCAN key [17] Processing/Date Indicator COPY key [18] ID key Back key [19] Reset key...

  • Page 35: Common Settings

    Chapter 1 1.2.3.2 Common Settings 0021-9465 Additional Functions Settings Initial Function Copy(*), Scan Contrast -2 to +2; -/+0(*) Invert Screen Colors Off(*), On Auto Clear Setting Initial Function(*), Selected Function Toner Save Mode Off(*), Low, High Print Density -4 to +4; -/+0(*) Auto Drawer Select.

  • Page 36: Copy Settings

    Chapter 1 1.2.3.3 Copy Settings 0021-9472 Additional Functions Settings Image Orientation Off(*), On Auto Orientation Off, On(*) Standard Settings No. of Copies 1(*) - 99 Density Auto(*), Manual (-4 to +4) Image Quality Text(*), Text/Photo, Photo 2-Sided Off(*), 1 -> 2-Sided, 2 -> 2-Sided, 2 -> 1-Sided, Book ->...

  • Page 37: Timer Settings

    Chapter 1 1.2.3.5 Timer Settings 0021-9497 Additional Functions Settings Auto Sleep Time Off, On ( 3 to 30 minutes; 5 min(*) in one minute increments) Auto Clear Time Off, On ( 1 to 9 minutes; 2 min(*) in one minute increments) * Factory setting (It may be different depending on the countries or region of destination.) 1.2.3.6 Timer Settings 0028-6581...

  • Page 38: System Settings

    Chapter 1 1.2.3.9 System Settings 0021-9501 Additional Functions Settings System Manager Set. System Manager ID, System Manager Device Info Settings Device Name, Location Dept. ID Management Off(*), On: Reg./Edit Dept. ID: Department ID, Password, Limit Settings, Erase Page Totals: View Page Totals, Clear All Totals, Print List Allow Unkn.

  • Page 39: Network Settings

    DNS Server Settings Primary DNS Server IP address 0.0.0.0 Secondary DNS Server IP address 0.0.0.0 DNS Host/Domain ('Canon' + the last six digits of the machine's MAC Host Name 47 Characters maximum address) Domain Name 47 Characters maximum (NULL) DNS Dynamic Update...

  • Page 40: Maintenance By The User

    Chapter 1 Item Setting Description Default Setting LPD Print Settings LPD Print Settings On/Off RAW Print Settings RAW Print Settings On/Off Use Bidirectional On/Off Use HTTP Use HTTP On/Off Port Number Settings Port Number Port Number 9100 HTTP Port Number SNMP Port Number RX MAC Address Set.

  • Page 41: Cleaning

    Chapter 1 1.2.4.2 Cleaning 0020-4274 The parts that should be cleaned by the customer to maintain the design performance and the cleaning method are described below. The service engineer should instruct the customer to clean the machine at regular intervals (once a month). 1.

  • Page 42: Safety

    These regulations apply to laser products manufactured on and after August 1, 1976, and the sale of laser products not certified under the regulations is banned within the Untied States. The label shown here indicates compliance with the CDRH regulations, and its attachment is required on all laser products that are sold in the United States. CANON 30-2, SHIMOMARUKO, 3-CHOME, OHTAKU, TOKYO, 146, JAPAN.

  • Page 43: Handling The Laser Unit

    Chapter 1 1.2.5.3 Handling the Laser Unit 0020-4067 The laser scanner unit emits invisible laser light inside it. If exposed to laser light, the human eye can irreparably be damaged. Never attempt to disassemble the laser scanner unit. (It is not designed for servicing in the field.) Warning labels are affixed to the top cover of the laser scanner unit and the inner cover inside the front cover of this machine.

  • Page 44: Product Specifications

    (humidity range) Operating environment 0.6 to 1.0 atm (atmospheric pressure) Noise iR2422 series: 66.7 dB or less iR2420/2320 series: 66.0 dB or less iR2318 series: 65.3 dB or less Power supply rating 120/230 V Power consumption (maximum) 120V model: 1406 W or less...

  • Page 45: Function List

    Chapter 1 Dimensions [Copyboard cover type] 1-stage cassette model: 622mm x 638mm x 580.4mm (W x D x H) 2-stage cassette model: 622mm x 638mm x 665.4mm (W x D x H) Weight [Copyboard cover type] 1-stage cassette model: approx. 37.9 kg 2-stage cassette model (standard equipement with Duplex unit): approx.

  • Page 46: Printing Speed (Ir2420/Ir2320Series)

    Chapter 1 Paper size Single-sided Casette feed Manual feed Bond paper STMT STMTR LTRR 16KR Envelope Monarch COM10 ISO-B5 ISO-C5 Supplement: - The value in the "( )" shows heavy paper 3. - The above copy speed does not change irrespective of whether paper is supplied from the upper/lower cassette, the manual feed tray, or from the cassette feeding module.

  • Page 47: Printing Speed (Ir2318Series)

    Chapter 1 Paper size Single-sided Casette feed Manual feed Heavy paper 1/2 12(10) 12(10) (Heavy paper 3) 13(11) 13(11) 10(7) 12(10) 12(10) 9(6) 9(6) 10(8) 10(8) 8(6) 8(6) 8(7) 8(7) STMT 11(7) 11(7) STMTR 9(6) 12(10) 11(10) 11(10) LTRR 9(8) 9(8) 8(5) 8(5)
  • Page 48 Chapter 1 Paper size Single-sided Casette feed Manual feed Plain paper STMT STMTR LTRR 16KR Heavy paper 1/2 12(10) 12(10) (Heavy paper 3) 13(11) 13(11) 10(7) 12(10) 12(10) 9(6) 9(6) 10(8) 10(8) 8(6) 8(6) 8(7) 8(7) STMT 11(7) 11(7) STMTR 9(6) 12(10) 11(10)
  • Page 49 Chapter 1 Supplement: - The value in the "( )" shows heavy paper 3. - The above copy speed does not change irrespective of whether paper is supplied from the upper/lower cassette, the manual feed tray, or from the cassette feeding module.

  • Page 51: Chapter 2 Installation

    Chapter 2 Installation...
  • Page 53 Contents Contents 2.1 Making Pre-Checks................................2-1 2.1.1 Selecting the Site of Installation ..............................2-1 2.1.2 Before Starting the Work (CLA) ..............................2-1 2.1.3 Before Starting the Work (120V TW) ............................2-3 2.1.4 Before Starting the Work (230V KR) ............................2-5 2.1.5 Before Starting the Work (230V EUR) ............................2-7 2.1.6 Before Starting the Work (230V CSPL) ............................

  • Page 55: Making Pre-Checks

    Chapter 2 2.1 Making Pre-Checks 2.1.1 Selecting the Site of Installation 0020-4247 Select the site of installation against the following requirements; if possible, visit the user's before delivery of the machine: 1) There must be a power outlet properly grounded and rated as indicated (-/+10%) for exclusive use by the machine. 2) The environment of the room must be as indicated in the following diagram, and the machine must not be installed near a water faucet, water boiler, humidifier, or refrigerator: (%RH)
  • Page 56 Chapter 2 fully used to the site temperature, thus avoiding image faults caused by condensation. (The term "condensation" refers to the formation of droplets of water on the surface of a metal object brought in from a cold to warm place, i.e., as the result of the rapid cooling of the moisture (vapor) around the object.) 2) The machine weighs a maximum of about 37.9 kg.

  • Page 57: Before Starting The Work (120V Tw)

    Chapter 2 2.1.3 Before Starting the Work (120V TW) 0020-4249 1-1 Points to Make Before Installation Be sure to go through the following before starting the work: 1) If you are installing the machine after moving it from a cold to warm location, be sure to leave the machine unpacked for at least 2 hours so that the machine is fully used to the site temperature, thus avoiding image faults caused by condensation.
  • Page 58 Chapter 2 Left cover (front) [15] Right cover (upper) Manual feed tray [16] Right cover (lower)

  • Page 59: Before Starting The Work (230V Kr)

    Chapter 2 2.1.4 Before Starting the Work (230V KR) 0027-3620 1-1 Points to Make Before Installation Be sure to go through the following before starting the work: 1) If you are installing the machine after moving it from a cold to warm location, be sure to leave the machine unpacked for at least 2 hours so that the machine is fully used to the site temperature, thus avoiding image faults caused by condensation.
  • Page 60 Chapter 2 Cassette 1 [14] Rear cover Left cover (front) [15] Right cover (upper) Manual feed tray [16] Right cover (lower)

  • Page 61: Before Starting The Work (230V Eur)

    Chapter 2 2.1.5 Before Starting the Work (230V EUR) 0020-4250 1-1 Points to Make Before Installation Be sure to go through the following before starting the work: 1) If you are installing the machine after moving it from a cold to warm location, be sure to leave the machine unpacked for at least 2 hours so that the machine is fully used to the site temperature, thus avoiding image faults caused by condensation.
  • Page 62 Chapter 2 Manual feed tray [16] Right cover (lower)

  • Page 63: Before Starting The Work (230V Cspl)

    Chapter 2 2.1.6 Before Starting the Work (230V CSPL) 0020-4251 1-1 Points to Make Before Installation Be sure to go through the following before starting the work: 1) If you are installing the machine after moving it from a cold to warm location, be sure to leave the machine unpacked for at least 2 hours so that the machine is fully used to the site temperature, thus avoiding image faults caused by condensation.
  • Page 64 Chapter 2 Manual feed tray [16] Right cover (lower) 2-10...

  • Page 65: Before Starting The Work (230V Ccn)

    Chapter 2 2.1.7 Before Starting the Work (230V CCN) 0020-4253 1-1 Points to Make Before Installation Be sure to go through the following before starting the work: 1) If you are installing the machine after moving it from a cold to warm location, be sure to leave the machine unpacked for at least 2 hours so that the machine is fully used to the site temperature, thus avoiding image faults caused by condensation.
  • Page 66 Chapter 2 Check the documentation and CD against the following table: <Except iR2320J> Documentation/CD-ROM Driver/Utility CD-ROM User Manual CD-ROM Easy Operation Guide Users Guide <iR2320J> Documentation/CD-ROM Easy Operation Guide Copying Guide Reference Guide 1-3 Names of Parts [13] [14] [12] [11] [4 ] [10]...

  • Page 67: Unpacking And Installation

    Chapter 2 2) Turn the developer pressure release lever [1] clockwise, and then open the left door [2] until it stops. 2.2 Unpacking and Installation 2.2.1 Unpacking and Removing the Packaging Materials The left door must be opened fully to prevent the drum from being damaged 0020-4254 while it is inserted into the drum unit.

  • Page 68: Installing The Toner Bottle

    Chapter 2 5) While holding the protective cover, insert the new drum unit [1] into the 9) Close the front cover [1]. main body. MEMO: The protective cover will not be reused. F-2-24 2.2.3 Installing the Toner Bottle 0020-4256 F-2-20 6) Turn the developer pressure release lever [1] counterclockwise, and then If the machine is installed in a low-temperature, low-humidity place, the close the left door [2].
  • Page 69 Chapter 2 4) While holding the toner bottle, pull the seal [1] to remove it. F-2-28 5) Turn the toner cartridge in the direction of the arrow until it stops. F-2-29 6) Close the front cover. F-2-30 <Going through the Developer Idling Mode> When installing the machine in a low-temperature, low-humidity environment, go through the developer idling mode before installing the toner bottle in order to prevent the density from becoming low on the first...

  • Page 70: Setting The Cassettes

    Chapter 2 4) Turn the lever [1] of the paper front guide counterclockwise to release it. 2.2.4 Setting the Cassettes Slide the paper front guide [2] to fit to the size of the paper to be used, and then turn the lever clockwise to lock it. 0020-4258 1) Holding the knob [1] at the center of the cassette, draw out the cassette [2] until it stops.

  • Page 71: Attaching The Reversal Trays (Only If Equipped With Duplex Unit)

    Chapter 2 7) Affix the cassette size label [1] to the paper size indication plate [2]. F-2-40 When the Finisher-U2 is connected, attach only the reversal tray [1] on the top of the main body of the finisher. (The reversal tray (sub) is no longer used.) F-2-37 8) Affix the caution sheet [1] printed in an appropriate language.
  • Page 72 Chapter 2 2) Place a document on the document glass, take a copy of it by supplying paper from the cassette or manual feed tray, and check the printed image. Also perform the following checks: - Check whether abnormal sound is heard. - Check the printed images at all preset magnifications.

  • Page 73: Flow Of Accessory Installation

    Chapter 2 2.3 Flow of Accessory Installation 2.3.1 Flow of Accessary Installation 0020-4262 If you are going to install any accessory after installing the host machine, follow the following flow of work so that the work will become effective. Host machine installation Power supply kit installation Cassette feeding module installation Duplex unit installation*1...

  • Page 74: Installing The Heater Pcb

    Chapter 2 2.4 Installing the Heater PCB Before installing, make sure the host machine is turned off. If it is turned on, go through the following: 2.4.1 Preparing the parts 1. Turn off the main power switch. 0020-4263 2. Disconnect the power cable (from the power outlet). 3.

  • Page 75: Installing The Heater Pcb

    Chapter 2 3)Release the 3 hooks [1] and then remove the lower-right cover [2]. 5) Remove the delivery tray [1]. - RS tightening screws (M3 x 8)[3], 5 pcs. - RS tightening screws (M3 x 8)[2], 2 pcs. When detaching the derivery tray, be careful not to damage the paper holder [3].
  • Page 76 Chapter 2 4) Attach the edge saddle [2], then connect the header switch harness [1] 1) Install the heater PCB unit [2]. (routed to the front of the host machine) to the connector (J15) on the - Supplied TP screws (M3x8) [1], 2pcs. power supply PCB through the edge saddle [2].
  • Page 77 Chapter 2 7) Install the edge saddle (small) [1]. 8) Connect the heater harness [2] to the connector (J1902) on the heater PCB unit, pass the harness through the installed edge saddle, and then route the harness to the front of the host machine through the hole [3]. F-2-53 9) Pass the heater harness [1] through the wire saddle [2], and then connect it to the connector (J17) [3] on the power supply PCB.

  • Page 78: Installing The Heater Pcb

    Chapter 2 4) Attach the edge saddle [2], then connect the header switch harness [1] 2.4.4 Installing the Heater PCB (routed to the front of the host machine) to the connector (J15) on the power supply PCB through the edge saddle [2]. 0028-6688 1) Install the heater PCB unit [2].
  • Page 79 Chapter 2 9) Pass the heater harness [1] through the wire saddle [2], and then connect it to the connector (J17) [3] on the power supply PCB. F-2-60 10) Install the delivery tray. - RS tightening screws (M3 x 8) 2pcs. When attaching the delivery tray, be careful not to damage the full stack sensor and paper holders.

  • Page 80: Installing The Reader Heater

    Chapter 2 2.5 Installing the Reader Heater 2.5.1 Preparing the parts 0020-4266 Before installing, make sure the heater PCB has been installed. 1) Prepare the following parts. F-2-61 Reader heater 2 pcs. Heater harness 1 pc. Harness guide 1 pc. Right heater base 1 pc.

  • Page 81: Installing The Reader Heater Harness

    Chapter 2 2) Remove the rear cover [1]. 2.5.2 Installing the Reader Heater Harness - RS tightening screws (M3 x 8)[2], 4 pcs. 0020-4267 Before installing, make sure the host machine is turned off. If it is turned on, go through the following: 1.
  • Page 82 Chapter 2 6) Disconnect the ground cable [1] of the ADF harness. (only for ADF 9) Disconnect the four connectors [1] from the reader controller PCB. equipped.) 10) Remove the harness from the edge saddle/clamp [2]. - Screw [2], 1 pc. 11) Remove the flexible cable holder [3], and then disconnect the two flexi- 7) Remove the ADF harness [3].
  • Page 83 Chapter 2 13) Pass the heater harness [1] though the harness guide [2] with the clamp 14) Secure the harness guide [1] to the rear bottom of the reader together with [3] of the heater harness aligned with the notch [4] in the harness guide. the heater harness [2].

  • Page 84: Removing Reader Components

    Chapter 2 a. Machine with a Copyboard Cover 2.5.3 Removing Reader Components 1) Remove the upper-left cover [1] of the reader. - Screws [2], 5 pcs. 0020-4268 Installation precautions are as follows: - Do not touch the top surface of the contact sensor. - Be careful not to allow foreign objects to enter the reader unit.

  • Page 85: Installing The Reader Heater

    Chapter 2 MEMO: Mount the stream reading glass with the notch [1] of the sheet material Though this process mentions the illustration of the model with the affixed to the glass is at the front left. document size sensor, a process is the same even with the model without the document size sensor.
  • Page 86 Chapter 2 6) Attach the heater cover [1]. 13) Install the right glass holder of the reader. - Screw [2], 1 pc. - Screws, 2 pcs. Tighten the screws pressing the glass holder towards the glass. 14) Attach the rear-left cover of the host machine. - Screws, 3 pcs.

  • Page 87: Installing The Cassette Heater

    Chapter 2 1) Remove the rear cover [1]. - Screws [2], 4 pcs. 2.6 Installing the Cassette Heater 2.6.1 Preparing the parts 0020-4271 Before installing the cassette heater, make sure the heater PCB has been installed. 1) Prepare the following parts. F-2-84 Part name Part number...
  • Page 88 Chapter 2 3) Secure the cassette heater [2] using a screw [1]. 4) Connect one harness [3] to the cassette heater harness [4]. 5) Place the other harness [5] at the position shown below. Connect this con- nector to the heater of the cassette when connecting the cassette heater to the cassette at the second or lower stage.
  • Page 89 Chapter 2 2-35...

  • Page 91: Chapter 3 Main Controller

    Chapter 3 Main Controller...
  • Page 93 Contents Contents 3.1 Construction ...................................3-1 3.1.1 Constraction and Mechanisms ..............................3-1 3.2 Construction of the Electrical Circuitry .........................3-2 3.2.1 Image processor PCB................................... 3-2 3.3 Image Processing ................................3-2 3.3.1 Overview of Image flow ................................3-2 3.3.2 Configration of Image processing Module ..........................3-4 3.3.3 Reader entry Image processing ..............................

  • Page 95: Construction

    Chapter 3 3.1 Construction 3.1.1 Constraction and Mechanisms 0020-4210 The main controller assembly of this equipment is composed of the following parts for function. Item Function Image processor PCB System control, Memory control, Control of printer output image processing, Reader image processing. Image memory (DDR) Temporary storage for image data Capacity:64MB...

  • Page 96: Construction Of The Electrical Circuitry

    Chapter 3 3.2 Construction of the Electrical Circuitry 3.2.1 Image processor PCB 0020-4211 The following is a diagram showing the major control mechanisms of the Image Processor PCB according to connectors. P102 P104 P108 CN101 P101 P106 P109 F-3-2 Connector Description P101 Power supply connection slot...
  • Page 97 Chapter 3 Original Copy Scan - SEND - FAX - PullScan - E-Mail - BDL Print Image data Print output F-3-3...

  • Page 98: Configration Of Image Processing Module

    Chapter 3 3.3.2 Configration of Image processing Module 0020-4213 The main image processing of this equipment is executed by the Main controller PCB (main). Following is the related module configuration. Reader Unit Reader controller PCB Reader entry image processing area This performs the image processing against the Image Processor PCB...

  • Page 99: Compression/Extension/Edit Processing Block

    Chapter 3 3.3.4 Compression/extension/edit processing block 0020-4215 This performs the compression/extension/edit processing. Image processor PCB BDL image processing block Reader image processing block Magnification Compression change Rotation Extention Composition To the printer output image processing block F-3-6 3.3.5 Printer output Image processing 0020-4216 Image processor PCB executes the image processing against the image data sent from the reader unit.

  • Page 100: Flow Of Image Data

    Chapter 3 3.4 Flow of Image Data 3.4.1 Image data flow of copy function 0020-4217 Fllowing is the image data flow when the copy function is used. Reader unit Image processor PCB Image processing block for reader Data rotation Data compression Data extention mage processing block for printer Row data...

  • Page 101: Parts Replacement Procedure

    Chapter 3 following operations: - Using the user support tool, download the latest firmware (System/Boot). 3.5 Parts Replacement Procedure - Input the all value printed on the service label affixed to the rear cover. Make the following adjustments: - Correction of output between CIS channels 3.5.1 Main Controller PCB 1) Enter the service mode.

  • Page 103: Chapter 4 Original Exposure System

    Chapter 4 Original Exposure System...
  • Page 105 Contents Contents 4.1 Construction ...................................4-1 4.1.1 Specifications, Control Methods, and Functions (When the original size detection sensor is equipped for BOOK mode) ..4-1 4.1.2 Specifications, Control Methods, and Functions (When the original size detection sensor is not equipped for BOOK mode) . 4-1 4.1.3 Major Components (When the original size detection sensor is equipped for BOOK mode).............
  • Page 106 Contents 4.4.7 Original Size Sensor .................................. 4-23 4.4.7.1 Removing the Original Sensor (Vertical Scan Direction) (When the original size detection sensor is equipped for BOOK mode) ..4-23 4.4.7.2 Removing the Original Sensor (Horizontal Scan Direction) (When the original size detection sensor is equipped for BOOK mode) ..4-24 4.4.8 Reader Heater (option)................................

  • Page 107: Construction

    Chapter 4 4.1 Construction 4.1.1 Specifications, Control Methods, and Functions (When the original size detection sensor is equipped for BOOK mode) 0020-4219 Major specifications, control methods, and functions of the original exposure system are summarized below. Item Function/Method Exposure light source Original scan In BOOK mode: Original scan is performed by moving the contact image sensor (CIS).

  • Page 108: Major Components (When The Original Size Detection Sensor Is Equipped For Book Mode)

    Chapter 4 Item Function/Method Magnification range 25% to 400% Vertical scan direction: Image processing is by image processor PCB Horizontal scan direction: Carriage movement speed change and image BOOK mode: processing by image processor PCB *1 Original feed speed change and image processing by ADF mode: image processor PCB *1 Lens...

  • Page 109: Major Components (When The Original Size Detection Sensor Is Not Equipped For Book Mode)

    Chapter 4 Major components of the original exposure system are as follows: [12] [11] [10] F-4-1 Component Function/Specification Copyboard cover open/close SR402 Photo interrupter: Detects the copyboard cover open/ sensor (Rear: SR402) close status. Starts detecting the original size when the copyboard cover angle is 30 deg.

  • Page 110: Control System Configuration (When The Original Size Detection Sensor Is Equipped For Book Mode)

    Chapter 4 Major components of the original exposure system are as follows: F-4-2 Component Function/Specification Copyboard cover open/close sensor (Rear: SR402 Photo interrupter: Detects the copyboard cover SR402) open/close status. Starts detecting the original size when the copyboard cover angle is 30 deg. Reader controller PCB Controls drive of the reader unit and image processing.

  • Page 111: Control System Configuration (When The Original Size Detection Sensor Is Not Equipped For Book Mode)

    Chapter 4 The control system configuration of the original exposure system is shown below. [13] [12] [11] [10] F-4-3 [1] Printer main body (Connected to the image processor PCB) [2] Connected to ADF [3] Connected to the power supply PCB [4] Reader motor drive control [5] Reader motor (M401) [6] Reader controller PCB...

  • Page 112: Reader Controller Pcb (When The Original Size Detection Sensor Is Equipped For Book Mode)

    Chapter 4 The control system configuration of the original exposure system is shown below. [11] [10] F-4-4 [1] Printer main body (Connected to the image processor PCB) [2] Connected to ADF [3] Connected to the power supply PCB [4] Reader motor drive control [5] Reader motor (M401) [6] Reader controller PCB [7] Contact image sensor...

  • Page 113: Reader Controller Pcb (When The Original Size Detection Sensor Is Not Equipped For Book Mode)

    Chapter 4 The functional configuration of the reader controller PCB is shown below. DC5V DC3.3V DC24V J401 J402 J404 J403 J409 J410 J411 J412 J405 J408 J406 J413 J407 F-4-5 Jack No. Function J401 Supplies power (24 VDC) from the main body (printer). J402 Supplies power (5 VC, 3.3 VDC) from the main body (printer).
  • Page 114 Chapter 4 The functional configuration of the reader controller PCB is shown below. DC5V DC3.3V DC24V J401 J402 J404 J403 J409 J410 J411 J412 J405 J408 J406 J413 J407 F-4-6 Jack No. Function J401 Supplies power (24 VDC) from the main body (printer). J402 Supplies power (5 VC, 3.3 VDC) from the main body (printer).

  • Page 115: Basic Sequence

    Chapter 4 4.2 Basic Sequence 4.2.1 Basic Sequence at Power-on 0020-4227 Main power switch SREADY STBY Reader motor (M401) CISHP sensor (SR401) Shading Shading position position : Forward movement : Backward movement F-4-7 CISHP sensor Shading Leading edge position of original 1.

  • Page 116: Various Control

    Chapter 4 CISHP sensor Original glass reading Shading Leading edge Trailing edge start position position of original of original 1. Moves to the start position after black shading/white shading. 2. Original scan 3. Moves to the standby position F-4-10 4.3 Various Control 4.3.1 Controlling the Scanner Drive System 4.3.1.1 Outline 0020-4231...

  • Page 117: Contact Image Sensor (Cis)

    Chapter 4 The reader motor driver controls rotation/stop and rotational direction/speed of the reader motor based on the signals from IC2. Reader controller PCB 3.3V +24V RTP3APWN J409 RTP3BPWN RTP3A Motor M401 RTP3B driver MO_STANDBY MO_TORQUE F-4-12 a. Forward Movement during Image Scan During image scan, operation of the contact image sensor (CIS) is controlled by controlling the motor as shown below.

  • Page 118: Analog Control Performed By The Cis

    Chapter 4 The original is exposed to light and read using the contact image sensor (CIS) to read the image on a line-by-line basis. Component Function Illuminates the original. Light guide Illuminates the entire image line with the LED light. Rod lens array Collects the light reflected by the original.

  • Page 119: Enlargement/Reduction

    Chapter 4 The flow of analog image processing performed by the contact image sensor (CIS) is as follows: The light reflected by the original is collected by the rod lens array. - The light is received by the CMOS sensor array. - The CMOS sensor array converts the received light to an electric signal and outputs it.

  • Page 120: Outline Of Original Size Detection

    Chapter 4 - Horizontal scan direction: Reflection type photo sensors (2 locations for AB; 2 locations for Inch) AB-Configration Horizontal scan direction Upper left corner Index plate of original Original sensor 3 Original sensor 4 Original sensor 1 Original sensor 2 Inch-Configration Horizontal scan direction Upper left corner...

  • Page 121: Dirt Sensor Control

    Chapter 4 Original sensor 3 Original sensor 4 Original (A4R) Original sensor 1 Original sensor 2 Original sensor 3/4 Original sensor 1/2 F-4-19 4) The copyboard cover is closed (at an angle of more than 5 deg but less than 30 deg) Original sensor: Turns on and original size identification process 2 is performed.
  • Page 122 Chapter 4 The machine changes the original read position or corrects the read image depending on the presence/absence of dust on the stream reading glass or ADF platen roller, thus preventing dust from showing up in the image. This control is performed only when the ADF is used and it is closed. [Control Timing] - At job end - Immediately before scanning (one sheet at a time)

  • Page 123: Image Processing

    Chapter 4 Platen roller 0.5mm 0.5mm A B C Stream reading Lens glass Contact image sensor (CIS) F-4-25 4.3.6 Image Processing 4.3.6.1 Outline 0020-4240 Major specifications and functions of the image processing system are as follows: - CMOS sensor Number of lines: 1 Number of pixels: Total 7488 (incl.

  • Page 124: Cmos Sensor Drive

    Chapter 4 The reader controller PCB is used to process images on a line-by-line basis. Its major functions are as follows: The CMOS sensor outputs are necessary even for the following reasons even 1)Analog image processing when the density of the original is uniform: - CMOS sensor drive - CMOS sensor output gain correction and offset correction (1) Variation in sensitivity among CMOS sensor pixels...

  • Page 125: Parts Replacement Procedure

    Chapter 4 MEMO: 4.4 Parts Replacement Procedure This machine does not require any action after replacing the document glass. 4.4.1 Copyboard glass 4.4.1.2 Removing the ADF Reading Glass (only for ADF equipment) 4.4.1.1 Removing the Copyboard glass 0020-4388 0020-4335 1) Open the ADF. 1) Open the copyboard cover (or ADF).
  • Page 126 Chapter 4 10) Remove the cover [1]. 13) Remove the connector [1] and one screw [2] to remove the harness guide - Screw [2] 1 pc. [3]. Remove three screws [4]. F-4-33 11) Remove the flexible cable [1] on the reader controller PCB. F-4-36 14) Go to the back of the machine, and then disconnect the four connectors [1] from the reader controller PCB.

  • Page 127: Removing The Reader Controller Pcb (When The Original Size Detection Sensor Is Equipped For Book Mode)

    Chapter 4 18) Remove the flexible cable guide [1]. 9) Remove the copyboard glass. - Screws [2] 3 pcs. 19) Remove the reader controller PCB [3] together with the mount. MEMO: This machine stores adjustment values in the image processor PCB, not the reader controller PCB.
  • Page 128 Chapter 4 12) Remove the cover [1]. 14) Go to the back of the machine, and then disconnect the four connectors - Screw [2] 1 pc. [1] from the reader controller PCB. 15) Remove the harness from the edge saddle/clamp [2]. 16) Remove the flexible cable holder [3], and then disconnect the two flexi- ble cables [4].

  • Page 129: Scanner Motor

    Chapter 4 20) Remove the reader controller PCB [1] from the mount. 9) Pull the drive belt (front) [1] in the direction of the arrow to move the con- - Screws [2] 3 pcs. tact sensor [2] to the position shown below. F-4-49 10) Remove the rear side of the contact sensor [1] from the carriage.

  • Page 130: Copyboard Cover Open/Close Sensor

    Chapter 4 4.4.5 Copyboard Cover Open/Close Sensor 3) Pull the drive belt (front) [1] in the direction of the arrow to move he con- tact sensor [2] to the center. 4) Remove the connector [3], and then remove the contact sensor HP sensor 4.4.5.1 Removing the Copyboard Cover Open/Close [4].

  • Page 131: Original Size Sensor

    Chapter 4 4) Pull the drive belt (front) [1] in the direction of the arrow to move he con- 4) Remove the flexible cable [1] from the reader controller PCB. tact sensor [2] to the center. 5) Remove the contact sensor HP sensor [3] together with the mount. - Screws [4] 2pcs.

  • Page 132: Removing The Original Sensor (Horizontal Scan Direction) (When The Original Size Detection Sensor Is Equipped For Book Mode)

    Chapter 4 8) Remove the original size sensor (Vertical scan direction) [1] together with 4) Remove the connector [1] from the reader controller PCB, and then re- them mount. move the harness from the edge saddle [2]. - Screws [2] 3 pcs. 5) Remove the original size sensor (horizontal scan direction) [3] together with them mount.

  • Page 133: Removing The Reader Heater (Left) (When The Adf Is Not Installed)

    Chapter 4 4)Remove the screw [1]. 5) Remove the metal plate [1]. 5) Remove the reader heater (right) [2]. - Screws [2] 2 pcs. - Wire saddle [3] 1 pc. - Connector [4] 1 pc. F-4-65 4.4.8.2 Removing the Reader Heater (Left) (When the ADF is not installed) F-4-67 0022-0966...
  • Page 134 5)Remove the jump board [1]. - Screw [2] 1 pc. F-4-70 6) Remove the stream reading glass stay [1]. - Screws [2] 2 pcs. 7) Pull the drive belt (front) [3] in the direction of the arrow to move the contact sensor [4] to the center. F-4-71 8) Remove the heater cover [1].
  • Page 135 9) Remove the reader heater (left) [1]. - Connector [2] 1 pc. - Screw [3] 1 pc. F-4-73...

  • Page 137: Chapter 5 Laser Exposure

    Chapter 5 Laser Exposure...
  • Page 139 Contents Contents 5.1 Construction ...................................5-1 5.1.1 Overview...................................... 5-1 5.1.2 Specifications and Control Mechanism ............................5-1 5.1.3 Main Components ..................................5-2 5.1.4 Control System Configuration ..............................5-3 5.2 Various Controls ................................5-4 5.2.1 Controlling the Laser Activation Timing............................. 5-4 5.2.1.1 Laser Emission ON/OFF Control..................................5-4 5.2.1.2 Horizontal Synchronization Control ................................5-4 5.2.2 Controlling the Intensity of Laser Light ............................

  • Page 141: Construction

    Chapter 5 5.1 Construction 5.1.1 Overview 0020-4075 The laser scanner unit consists of a laser driver, scanner motor, and others. It is controlled by the signals from the DC controller PCB. The laser driver operates the laser diode to emit light in response to the laser control signals and video signals from the DC controller PCB. Laser beams are emitted, through a collimator lens and cylindrical lens, to the hexahedral mirror rotating at a constant speed.

  • Page 142: Main Components

    Chapter 5 5.1.3 Main Components 0020-4077 F-5-1 Name Function [1] Photoconductive drum Receives laser beams to form a latent image. [2] Laser mirror 1 (loop-back mirror) Reflects a laser beam toward laser mirror 2. [3] Laser mirror 2 (loop-back mirror) Reflects a laser beam toward the photoconductor drum.

  • Page 143: Control System Configuration

    Chapter 5 5.1.4 Control System Configuration 0020-4078 The laser exposure system is controlled mainly by the IC5 on the DC controller PCB. Main control types are as follows: [1] Laser emission ON/OFF control/video signal input [2] Horizontal synchronization control [3] Laser scanner motor control [4] Automatic photocurrent control (APC) DC Controller PCB Image Processor...

  • Page 144: Various Controls

    Chapter 5 5.2 Various Controls 5.2.1 Controlling the Laser Activation Timing 5.2.1.1 Laser Emission ON/OFF Control 0020-4080 The purpose of this control is to turn ON/OFF the laser diode (LD) in response to video signals. The DC controller PCB sends laser control signals (CNTRL0, CNTRL1, and CNTRL2), which are used to switch between laser driver operation modes, to the laser driver IC along with video signals (VDO1, /VDO1).

  • Page 145: Controlling The Laser Scanner Motor

    Chapter 5 5.2.3 Controlling the Laser Scanner Motor 5.2.3.1 Laser Scanner Motor Control 0020-4084 From the moment the laser scanner motor starts to the moment it reaches the target revolution speed, the revolution speed is controlled with reference to the laser scanner motor revolution speed signal (FG signal).

  • Page 146: Controlling The Laser Shutter

    Chapter 5 5.2.4 Controlling the Laser Shutter 5.2.4.1 Laser Shutter Control 0020-4085 When the drum unit is drawn out, the interlocked laser shutter moves down, shutting off the laser beam path. When opening of the front cover or left door is detected, the laser scanner motor and laser outputs turn off.

  • Page 147: Parts Replacement Procedure

    Chapter 5 5.3 Parts Replacement Procedure 5.3.1 Laser Scanner Unit 5.3.1.1 Removing the Laser Scanner Unit 0020-4410 1) Remove the rear cover. 2) Open the front cover. 3) Remove the right cover (lower). 4) Remove the delivery tray. 5) Remove the metal plate [1] and laser scanner unit [2]. - Sponges [3] 2 pcs.
  • Page 148 Chapter 5...

  • Page 149: Chapter 6 Image Formation

    Chapter 6 Image Formation...
  • Page 151 Contents Contents 6.1 Construction ...................................6-1 6.1.1 Specifications of Image Formation System ..........................6-1 6.1.2 Major Components of Image Formation System......................... 6-2 6.2 Image Formation Process...............................6-3 6.2.1 Image Formation Process................................6-3 6.3 Basic Sequence ................................6-4 6.3.1 Basic Sequence of Operation ............................... 6-4 6.4 Driving and Controlling the High-Voltage System .......................6-5 6.4.1 Outline......................................

  • Page 153: Construction

    Chapter 6 6.1 Construction 6.1.1 Specifications of Image Formation System 0020-4088 Photosensitive drum Drum type OPC drum Drum diameter 30mm Cleaning mechanism Cleaning blade Processing speed 106.81mm/sec Primary charging Charging method Roller charging (AC + DC) ng roller diameter 14mm Transfer charging Charging method Roller charging (DC)

  • Page 154: Major Components Of Image Formation System

    Chapter 6 6.1.2 Major Components of Image Formation System 0020-4090 Laser beam [10] Paper transport path F-6-1 [1] Photosensitive drum [2] Cleaner blade [3] Primary charging roller [4] Drum unit [5] Blade [6] Developing assembly [7] Toner bottle [8] Developing cylinder [9] Transfer charging roller [10] Static eliminator...

  • Page 155: Image Formation Process

    Chapter 6 6.2 Image Formation Process 6.2.1 Image Formation Process 0020-4091 The image formation system of this machine consist of a primary charging roller, a drum unit integrated with a drum cleaner, a toner bottle, a developing assembly, a transfer charging roller, and so on. The image formation process of this machine is composed of the following five blocks (7 steps): [1] Electrostatic latent image formation block Step 1: Primary charging (AC &...

  • Page 156: Basic Sequence

    Chapter 6 6.3 Basic Sequence 6.3.1 Basic Sequence of Operation 0020-4093 The basic sequence of operation of this machine is explained below. For more details, refer to the explanation of various types of bias control. - At power-on (when the door is opened/closed) The main motor starts rotating after completion of the error check.

  • Page 157: Driving And Controlling The High-Voltage System

    Chapter 6 - At the end of printing To prevent fogging of the drum, the developing DC bias is held higher than usual except during image formation. To prevent the toner remaining on the photosensitive drum from sticking to the transfer charging roller, the transfer roller bias which is lower than that applied during printing the is applied at the prescribed timing.

  • Page 158: Drum Unit

    Chapter 6 6.5 Drum Unit 6.5.1 Outline of the Drum Unit 6.5.1.1 Outline 0020-4096 Major components of the drum unit are as follows: F-6-7 [1] Photosensitive drum [2] Cleaning blade [3] Primary charging roller 6.5.2 Charging Mechanism 6.5.2.1 Primary Charging Bias Control 0020-4097 With the primary charging bias method, the drum is charged directly by the charging roller.

  • Page 159: Developing Unit

    Chapter 6 6.6 Developing Unit 6.6.1 Outline 0020-4100 Major components of the developing assembly are as follows: F-6-9 [1] Developing Assembly [2] Stirring plate [3] Antenna rod [4] Developing blade [5] Developing cylinder 6.6.2 Developing Bias Control 0020-4102 A DC bias and an AC bias are applied to the developing cylinder. The ASIC on the DC controller PCB outputs the developing AC bias drive signal (/DVACFOT), developing AC bias ON/OFF signal (/DVACON), developing DC bias drive signal (/DVDCFOT), and developing DC bias output level signal (/DVDCPWM) to apply the voltage generated by superimposing the developing AC bias over the developing DC bias to the developing cylinder.

  • Page 160: Toner Container

    Chapter 6 6.7 Toner Container 6.7.1 Outline 0020-4104 The structure of the toner bottle is shown below. The toner bottle is charged with 1-component, insulating, magnetic toner. The stirring rod in the toner bottle is rotated by the mina motor to supply toner into the developing assembly through the toner supply port.

  • Page 161: Controlling The Transfer Bias

    Chapter 6 6.8.2 Controlling the Transfer Bias 6.8.2.1 Transfer Roller Bias Control 0020-4106 A negative bias, sheet-to-sheet bias, or positive bias is applied to the transfer charging roller according to the type of sequence. The negative bias is applied at the prescribed timing to moves the toner from the transfer charging roller to the photosensitive drum for cleaning. The sheet-to-sheet bias is lower than that applied during printing and it is applied at the prescribed timing to prevent the toner remaining on the photosensitive drum from adhering to the transfer charging roller.

  • Page 162: Photosensitive Drum Cleaning

    Chapter 6 6.9 Photosensitive Drum Cleaning 6.9.1 Outline 0020-4110 Toner reaming on the photosensitive drum after image transfer is scraped by the photosensitive drum cleaner blade and is fed in the waste toner box. 6.9.2 Waste Toner Full Detection 0020-4111 The waste toner collected by the cleaner blade is fed to the waste toner box using the waste toner feed screw in the drum unit.

  • Page 163: Parts Replacement Procedure

    Chapter 6 9) Draw out the developing assembly [1]. 6.10 Parts Replacement Procedure 6.10.1 Drum Unit 6.10.1.1 Removing the Drum Unit 0020-4411 1) Open the front cover [1]. 2) Turn the developing assembly locking lever [2] clockwise to open the left door [3].

  • Page 164: Transfer Charging Roller

    Chapter 6 7) Select "BitSwitch14" using the arrow key, and hen press the OK key. 8) Select "SW-14-1" using the arrow key, and hen press the OK key. 9) Select "On" using the arrow key, and hen press the OK key. 10) Press the Reset key to exit the service mode.

  • Page 165: Chapter 7 Pickup/Feeding System

    Chapter 7 Pickup/Feeding System...
  • Page 167 Contents Contents 7.1 Construction ...................................7-1 7.1.1 Specifications/Configuration/Operation Methods ........................7-1 7.1.2 Locations of Main Units (When the duplex unit is not equipped)....................7-2 7.1.3 Locations of Main Units (When the duplex unit is equipped)..................... 7-3 7.1.4 Roller Layout Drawing ................................7-4 7.1.5 Paper Path Drawing(Printer on its own) ............................
  • Page 168 Contents 7.5.7.1 Removing the Cassette Pickup Solenoid ..............................7-19 7.5.8 Manual Pickup Roller ................................7-20 7.5.8.1 Removing the Multifeeder Pickup Roller ..............................7-20 7.5.9 Manual Feed Tray paper sensor..............................7-20 7.5.9.1 Removing the Multifeeder Paper Presence/Absence Sensor ........................7-20 7.5.10 Manual Feed Pickup Solenoid ..............................7-21 7.5.10.1 Removing the Multifeeder Pickup Solenoid...............................

  • Page 169: Construction

    Chapter 7 7.1 Construction 7.1.1 Specifications/Configuration/Operation Methods 0020-4114 Functions and operation methods of the pickup/feeding system are as follows: Item Function/Operation method Pickup method Cassette Clow retard Multi manual feed tray Duplo separation Paper stack Cassette Plain Paper 300Sheets(64g/m2) 260Sheets(75g/m2) 250Sheets(80g/m2) 120Sheets(90g/m2) Multi manual feed tray...

  • Page 170: Locations Of Main Units (When The Duplex Unit Is Not Equipped)

    Chapter 7 7.1.2 Locations of Main Units (When the duplex unit is not equipped) 0020-4115 Locations of main units of the pickup/feeding system are shown blow. F-7-1 [1] Pickup assembly [2] Manual feed pickup assembly [3] Registration roller [4] Transfer assembly [5] Duplex print paper feed assembly(option)*1 [6] Fixing assembly [7] First delivery assembly...

  • Page 171: Locations Of Main Units (When The Duplex Unit Is Equipped)

    Chapter 7 7.1.3 Locations of Main Units (When the duplex unit is equipped) 0020-4956 Locations of main units of the pickup/feeding system are shown blow. F-7-2 [1] Pickup assembly [2] Manual feed pickup assembly [3] Registration roller [4] Transfer assembly [5] Duplex print paper feed assembly [6] Fixing assembly [7] First delivery assembly...

  • Page 172: Roller Layout Drawing

    Chapter 7 7.1.4 Roller Layout Drawing 0020-4116 The layout of the rollers used in the pickup/feeding system is shown below. [11] [12] [10] F-7-3 [1] Pickup roller [2] Cassette pickup roller [3] Feed roller 1 [4] Multi pickup roller [5] Registration roller [6] Duplex print paper feed roller 3 [7] Transfer roller [8] Fixing roller...

  • Page 173: Paper Path Drawing(Finisher-U2)

    Chapter 7 F-7-4 [1] Cassette pickup [2] Manual feed pickup [3] Delivery from copy tray 1 7.1.6 Paper Path Drawing(Finisher-U2) 0020-4118 F-7-5 [1] Cassette pickup [2] Manual feed pickup [3] Finisher-U2(option) 7.1.7 Paper Path Drawing(Duplex Unit-A1(option)/Finisher-U2) 0020-4119...

  • Page 174: Paper Path Drawing(Duplex Unit-A1(Standard)/Finisher-U2)

    Chapter 7 F-7-6 [1] Cassette pickup [2] Manual feed pickup [3] Both sides re-paper feed(option) [4] Finisher-U2(option) 7.1.8 Paper Path Drawing(Duplex Unit-A1(standard)/Finisher-U2) 0020-4957 F-7-7 [1] Cassette pickup [2] Manual feed pickup [3] Both sides re-paper feed*1 [4] Finisher-U2(option) *1 This comes standard. 7.1.9 Paper Path Drawing(Duplex-A1(option)) 0020-4120...

  • Page 175: Paper Path Drawing(Duplex-A1(Standard))

    Chapter 7 F-7-8 [1] Cassette pickup [2] Manual feed pickup [3] Both sides re-paper feed(option) [4] Delivery from copy tray 1 7.1.10 Paper Path Drawing(Duplex-A1(standard)) 0020-4958 F-7-9 [1] Cassette pickup [2] Manual feed pickup [3] Both sides re-paper feed*1 [4] Delivery from copy tray 1 *1 This comes standard.

  • Page 176: Paper Path Drawing(Duplex-A1(Standard)/Inner 2Way Tray-E2)

    Chapter 7 F-7-10 [1] Cassette pickup [2] Manual feed pickup [3] Delivery from copy tray 1 [4] Delivery from copy tray 2(option) [5] Both sides re-paper feed(option 7.1.12 Paper Path Drawing(Duplex-A1(standard)/Inner 2Way Tray-E2) 0020-4959 F-7-11 [1] Cassette pickup [2] Manual feed pickup [3] Delivery from copy tray 1 [4] Delivery from copy tray 2(option) [5] Both sides re-paper feed*1...

  • Page 177: Sensor Layout Drawing (When The Duplex Unit Is Not Equipped)

    Chapter 7 F-7-12 [1] Cassette pickup [2] Manual feed pickup [3] Delivery from copy tray 1 [4] Delivery from copy tray 2(option) 7.1.14 Sensor Layout Drawing (When the duplex unit is not equipped) 0020-4123 The layout of the sensors used in the pickup/feeding system is shown below. F-7-13 [1] Cassette 1 paper presence/absence sensor (SR204) [2] Registration sensor (SR209)

  • Page 178: Detecting Jams

    Chapter 7 The layout of the sensors used in the pickup/feeding system is shown below. F-7-14 [1] Cassette 1 paper presence/absence sensor (SR204) [2] Registration sensor (SR209) [3] Manual feed paper presence/absence sensor (SR208) [4] Duplex print paper sensor 2 (SR1003)*1 [5] Fixed paper delivery sensor (SR202) [6] First delivery sensor (SR203) [7] Duplex print paper sensor 1 (SR1002)*1...

  • Page 179: Duplex Paper Sensor 1 Delay Jam

    Chapter 7 7.2.1.3 Duplex Paper Sensor 1 Delay Jam 0020-5034 Duplex paper sensor 1 delay jam This jam occurs if the duplex paper sensor 1 does not turn on within the predetermined time after the delivery sensor in the host machine turns on. Sensors Delivery sensor (SR202) Duplex paper sensor 1(SR1002)

  • Page 180: Cassette Pick-Up Unit

    Chapter 7 Door Open Jam The door is opened when paper to be printed is in the paper feed path. 7.3 Cassette Pick-Up Unit 7.3.1 Overview 0020-4134 The paper picked up from the cassette is fed to the registration roller using the vertical path roller driven by the main motor (M204). The registration roller is not rotating when paper reaches there, so an arch is formed at the leading of the paper to prevent skewing.
  • Page 181 Chapter 7 2) When the pickup roller drive gear is engaged with the pickup roller shaft gear, drive power is transferred to the pickup roller shaft gear and consequently the pickup roller starts rotating. F-7-17 3) When the feed roller drive gear is engaged with the feed roller shaft gear, drive power is transferred to the feed roller shaft gear and consequently the feed roller starts rotating.

  • Page 182: Cassette Paper Size Detection

    Chapter 7 7.3.3 Cassette Paper Size Detection 0020-4136 The size of the paper in the cassette is detected by the DC controller PCB when the user changes the position of the cassette paper size lever. When the cassette is inserted in the iR host machine, the paper size lever pushes the paper size switches provided in the iR host machine to allow the DC controller PCB to detect presence of the cassette and the size of paper.

  • Page 183: Post-Pickup Control After Multi Manual Feed Pickup

    Chapter 7 a. Multi Manual feed Pickup Control The manual feed pickup mechanism picks up sheets of paper in succession from the multi manual feed tray. The sheets of paper stacked in the tray are raised against the manual feed pickup roller by the inner plate. The manual feed pickup roller is driven by the main motor (M204) via the manual feed pickup solenoid (SL202) and gears.

  • Page 184: Parts Replacement Procedure

    Chapter 7 7)Detach the front cover [1]. - Screw [2], 1 pc. 7.5 Parts Replacement Procedure - Fixed pins [3], 2 pcs. 7.5.1 Pickup Roller 7.5.1.1 Removing the Cassette Paper Pickup Roller 0020-4417 1) Remove the cassette. 2) Open the lower-left cover. 3) With the pickup roller [1] down, insert a screwdriver [2] or the like from the left side of the host machine as shown below.

  • Page 185: Removing The Second Cassette Unit

    Chapter 7 9)Pull out the connector [1] on the DC controller PCB, which is at the rear 12)Open the left guide [1] and detach the small cover [2] by using a minus side of the machine. (Connecter to be pulled out: J209, J210, J211, J212, screwdriver.
  • Page 186 Chapter 7 5) Remove the two connecting plates [1]. MEMO: - Screws [2] 4 pcs. Lifting up of the host machine is necessary in the following work. Therefore, two or more person should be ready. 1) Remove the upper and lower cassette from the machine. 2) Remove the two connecting plates [1].

  • Page 187: Cassette Pickup Assembly

    Chapter 7 8) Remove ground wire [1] from wire saddle [2] and harness guide [3]. - Screw [4] 1pc. Install the cassette pickup assembly with the ground plate [1] outside the side plate. F-7-37 9) Remove the cassette unit by lifting the machine. 7.5.4 Cassette Size Sensor 7.5.3 Cassette Pickup Assembly 7.5.4.1 Removing the Paper Size Detection Switches...

  • Page 188: Cassette Pickup Solenoid

    Chapter 7 4) Remove the cassette paper presence/absence sensor [1]. 5) Remove the feed guide [1]. - Connector [2] 1 pc. - Screw [2] 2 pcs. F-7-41 F-7-44 7.5.7 Cassette Pickup Solenoid 6) Remove the multi-paper roller [1]. - Bearing [1] 1 pc. 7.5.7.1 Removing the Cassette Pickup Solenoid 0020-4425 1) Remove the lower-left cover.

  • Page 189: Manual Feed Pickup Solenoid

    Chapter 7 4) Remove the transfer registration unit [1]. 4) Remove the transfer registration unit [1]. - Screw [2] 4 pcs. - Screw [2] 4 pcs. F-7-46 F-7-49 5) Remove the feed guide [1]. 5) Remove the feed guide [1]. - Screw [2] 2 pcs.

  • Page 190: Registration Roller

    Chapter 7 7) Remove the multifeeder unit [1]. 4) Remove the two metal plates [1], and remove the registration roller [2]. - Screws [2] 4 pcs. - Screws [3] 2 pcs. [3] [1] F-7-52 8) Remove the harness from the guide. - connector [1] 1 pc.

  • Page 191: Separation Pad

    Chapter 7 3) Lower the separation roller [1] as shown below, and then remove the sep- 7) I use a minus screwdriver and remove separation pad [1]. aration roller [1] and feed roller [3] by holding the claws [2] of the roller collars.
  • Page 192 Chapter 7 7-24...

  • Page 193: Chapter 8 Fixing System

    Chapter 8 Fixing System...
  • Page 195 Contents Contents 8.1 Construction ...................................8-1 8.1.1 Specifications, Control Mechanisms, and Functions ........................8-1 8.1.2 Major Components..................................8-1 8.2 Various Control Mechanisms............................8-2 8.2.1 Controlling the Speed of the Fixing Film ............................ 8-2 8.2.1.1 Controlling the Fixing Film Speed..................................8-2 8.2.2 Controlling the Fixing Film Temperature............................ 8-3 8.2.2.1 Outline..........................................8-3 8.2.2.2 Controlling the Fixing Film Temperature ...............................8-3 8.2.2.3 Target Temperatures by Mode ..................................8-3...

  • Page 197: Construction

    Chapter 8 8.1 Construction 8.1.1 Specifications, Control Mechanisms, and Functions 0020-4139 Item Function/Method Fixing method by fixing film + pressure roller Fixing heater Unitary flat heater incorporating both main heater and sub heater Fixing temperature detection [1] Main thermistor (TH1): Temperature control and fault detection [2] Sub thermistor (TH2): Fault detection [3] Thermo-switch (TP1): Fault detection Fixing temperature control...

  • Page 198: Various Control Mechanisms

    Chapter 8 F-8-2 Fixing film speed sensor Thermo-switch (TP1) Sub thermistor (TH2) Pressure roller Main thermistor (TH1) Fixing film unit 8.2 Various Control Mechanisms 8.2.1 Controlling the Speed of the Fixing Film 8.2.1.1 Controlling the Fixing Film Speed 0020-4141 The rotation cycle is measured with reference to the mark provided at the end of the fixing film to rotate the fixing drive motor at the optimum speed, thus keeping the paper feed speed constant.

  • Page 199: Controlling The Fixing Film Temperature

    Chapter 8 8.2.2 Controlling the Fixing Film Temperature 8.2.2.1 Outline 0020-4142 The surface temperature of the fixing heater is detected to control the fixing heater drive signal so that the fixing heater temperature becomes the target temperature. The temperature of the fixing heater is detected by the thermistor (TH1/TH2) provided on the fixing heater. If the surface temperature rises, the resistance of the thermistor lowers and the voltage of the fixing heater temperature detection signal (M_TH/S_TH) also lowers.

  • Page 200: Detecting The Passage Of Paper

    Chapter 8 8.2.3 Detecting the Passage of Paper 8.2.3.1 Detecting the Passage of Paper 0020-4155 The paper passage detection mechanism of the fixing unit is shown below. DC Controller PCB SR502 F-8-4 If a delay jam is detected by the fixing delivery sensor (SR202), the fixing motor is stopped immediately to prevent paper from winding around the fixing roller.

  • Page 201: Parts Replacement Procedure

    Chapter 8 6) Open the left door until it sops and pull out the hinge shaft [1]. 8.3 Parts Replacement Procedure 8.3.1 Fixing Unit 8.3.1.1 Removing the Fixing Unit 0020-4445 1) Draw out the drum unit. 2) Remove the rear cover. 3) Remove the left cover (rear).

  • Page 202: Pressure Roller

    Chapter 8 9) Remove the heater harness cover [2]. Disconnect the connector [3]. 3) Raise the claw [1] of the fixing unit inlet guide, and remove the slide the - Screw [1] 1 pc. fixing unit inlet guide [2] by sliding it in the direction of the arrow. F-8-10 10) Disconnect the two connectors [1], and then release the fixing unit har- ness from the wire saddles [2].

  • Page 203: Fixing Film

    Chapter 8 5) Remove the right side stay [2] and left side stay [3]. 8.3.3 Fixing Film - Screw [1] 2 pcs. 8.3.3.1 Removing the Fixing Film Unit 0020-4448 1) Remove the fixing unit. 2) Remove the fixing pressure release lever [2]. - Resin ring [1] F-8-18 6) Disconnect the connector [1] and release the fixing DC harness [2] from...
  • Page 204 Chapter 8 7) Remove the ground cable [1] from the holder, and then free the fixing unit 9) Release the pressure plates [1]. AC harness. - Screw [2], 2 pcs. F-8-20 8) Remove the roller guide unit [1]. - Screw [2] 2 pcs. F-8-21 F-8-22 10) After rotating the pressure plates [1] to release them from the fixing film...

  • Page 205: Fixing Delivery Sensor

    Chapter 8 5) Remove the right side stay [2] and left side stay [3]. 8.3.4 Fixing Delivery Sensor - Screws [1] 2 pcs. 8.3.4.1 Removing the Fixing Delivery Sensor 0020-4449 1) Remove the fixing unit. 2) Remove the fixing pressure release lever [2]. - Resin ring [1] 1 pc.

  • Page 206: Fixing Film Sensor

    Chapter 8 When installing the electrode plate [1], place it under the three claws [2] as shown below. 8.3.5 Fixing Film Sensor 8.3.5.1 Removing the Fixing Film Sensor 0020-4451 1) Remove the fixing unit. 2) Disconnect the connector [1], release the two hooks [2], and then remove the film sensor [3].

  • Page 207: Chapter 9 External And Controls

    Chapter 9 External and Controls...
  • Page 209 Contents Contents 9.1 Control Panel..................................9-1 9.1.1 Overview...................................... 9-1 9.2 Fans ....................................9-1 9.2.1 Overview...................................... 9-1 9.2.2 Fan Control ....................................9-1 9.3 Power Supply System ..............................9-2 9.3.1 Power Supply ....................................9-2 9.3.1.1 Outline (When the duplex unit is not equipped) .............................9-2 9.3.1.2 Outline (When the duplex unit is equipped) ..............................9-3 9.3.1.3 Outline (When the duplex unit is not equipped) .............................9-4 9.3.1.4 Outline (When the duplex unit is equipped) ..............................9-5 9.3.1.5 Rated Output of the Power Supply PCB .................................9-6...
  • Page 210 Contents 9.4.10.1 Removing the Fixing Unit Drive Motor ..............................9-17 9.4.11 Left Door....................................9-17 9.4.11.1 Removing the Left Door (Non Duplex Unit Type) ............................ 9-17 9.4.11.2 Removing the Left Door (With Duplex Unit Type) ........................... 9-18...

  • Page 211: Control Panel

    Chapter 9 9.1 Control Panel 9.1.1 Overview 0020-4158 The machine's control panel consists of the following PCBs, and is controlled by the ASIC of the image processor PCB. The indication on the LCD is in 5 lines (132 x 65 dots). Image Processor Cntrol Panel PCB Key SW...

  • Page 212: Power Supply System

    Chapter 9 the heat exhaust fan at the full speed. 2) Half-speed control When the CPU on the engine controller outputs a fan half speed signal (FAN_HALF), the fan drive voltage switching circuit supplies a +16 V fan drive voltage to turn the heat exhaust fan at the half speed.

  • Page 213: Outline (When The Duplex Unit Is Equipped)

    Chapter 9 When the main power switch (SW1) is turned on, AC power is supplied to the low-voltage power supply circuit in the power supply PCB. The low-voltage power supply circuit supplies +3.3 V, +5 V, and +24 V to operate the machine. +24 V is supplied to the motors, fan, electromagnetic clutch, solenoid, etc.

  • Page 214: Outline (When The Duplex Unit Is Not Equipped)

    Chapter 9 When the main power switch (SW1) is turned on, AC power is supplied to the low-voltage power supply circuit in the power supply PCB. The low-voltage power supply circuit supplies +3.3 V, +5 V, and +24 V to operate the machine. +24 V is supplied to the motors, fan, electromagnetic clutch, solenoid, etc.

  • Page 215: Outline (When The Duplex Unit Is Equipped)

    Chapter 9 When the main power switch (SW1) is turned on, AC power is supplied to the low-voltage power supply circuit in the power supply PCB. The low-voltage power supply circuit supplies +3.3 V, +5 V, and +24 V to operate the machine. +24 V is supplied to the motors, fan, electromagnetic clutch, solenoid, etc.

  • Page 216: Rated Output Of The Power Supply Pcb

    Chapter 9 When the main power switch (SW1) is turned on, AC power is supplied to the low-voltage power supply circuit in the power supply PCB. The low-voltage power supply circuit supplies +3.3 V, +5 V, and +24 V to operate the machine. +24 V is supplied to the motors, fan, electromagnetic clutch, solenoid, etc.

  • Page 217: Parts Replacement Procedure

    Chapter 9 4) Remove the right cover (upper) [1]. - Screw [2] 1 pc. 9.4 Parts Replacement Procedure 9.4.1 External Covers 9.4.1.1 Delivery Tray 9.4.1.1.1 Removing the Delivery Tray 0020-4455 1) Detach the rear cover. 2) Open the front cover. 3) Detach the right cover (lower).

  • Page 218: Left Cover (Rear)

    Chapter 9 9.4.1.6 Left Cover (Rear) 9.4.1.6.1 Removing the Left Cover (Rear) 0020-4465 1) Detach the rear left cover [1]. - Screws [2] 3 pcs. F-9-16 8) Disconnect the ground cable [1] of the ADF harness (Only for ADF equipped). - Screw [2] 1 pc.

  • Page 219: Main Drive Assembly

    Chapter 9 12) Remove the handle unit [1]. 9.4.2 Main Drive Assembly - Screws [2] 3 pcs. 9.4.2.1 Removing the Main Drive Unit 0020-4469 1) Open the front cover. 2) Turn the developing assembly locking lever clockwise to open the left door.

  • Page 220: Removing The Fixing Drive Unit

    Chapter 9 9) Remove the fixing drive unit [1]. - Connector [2] 1 pc. - Screws [3] 4 pcs. Since the gears in the main drive unit are not secured, gears will fall if the main drive unit is inclined. If gears should fall, install them at the positions shown below.
  • Page 221 Chapter 9 9.4.4.2 Removing the Main Power Supply PCB 0028-6758 1) Remove the rear cover. 2) Remove the right cover (lower). 3) Remove the delivery tray. 4) Remove the power supply PCB [1]. - Connectors [2] 8 pcs. - Screws [3] 6 pcs. F-9-30 F-9-31 9-11...

  • Page 222: Control Panel

    Chapter 9 1) Remove the rear cover. 9.4.5 Control Panel 2) Remove the DC controller PCB [1]. - Connectors [2] 16 pcs. - Screws [3] 4 pcs. 9.4.5.1 Removing the Operation Panel Unit 0020-4478 1) Open the copyboard cover (or ADF). 2) Remove the reader front cover.
  • Page 223 Chapter 9 1) Remove the rear cover. 2) Remove the right cover (lower). 3) Remove the delivery tray. 4) Disconnect the connector (J16) [1] on the power supply PCB. F-9-36 5) Disconnect the connector (J53) [1] on the power supply PCB. 6) Remove the option power supply PCB [2].
  • Page 224 Chapter 9 9.4.7.2 Removing the Option Power Supply PCB 0028-6687 1) Remove the rear cover. 2) Remove the right cover (lower). 3) Remove the delivery tray. 4) Disconnect the connector (J16) [1] on the power supply PCB. F-9-38 5) Disconnect the connector (J53) [1] on the power supply PCB. 6) Remove the option power supply PCB [2].

  • Page 225: Hvt Pcb

    Chapter 9 3) Disconnect the connector [1], and then release the harness from the wire 9.4.8 HVT PCB saddle [2]. 9.4.8.1 Removing the HVT PCB 0020-4481 1) Remove the rear cover. 2) Remove the right cover (lower). 3) Remove the delivery tray. 4) Remove the power supply PCB.

  • Page 226: Removing The Fan Filter (With Duplex Unit Type)

    Chapter 9 8) Remove the duplex unit [1] from the left door. 9.4.9.2 Removing the Fan Filter (With Duplex Unit Type) - Screws [2] 6 pcs. 0020-4483 1) Draw out the drum unit. 2) Remove the rear cover. 3) Remove the left cover (rear). 4) Disconnect the relay harness [2] from the connector [1].

  • Page 227: Fixing Driver Motor

    Chapter 9 5) Open the left door until it sops and pull out the hinge shaft [1]. 9.4.10 Fixing Driver Motor MEMO: 9.4.10.1 Removing the Fixing Unit Drive Motor When a duplex unit (option) is installed, remove it before pulling out the hinge shaft for each access.

  • Page 228: Removing The Left Door (With Duplex Unit Type)

    Chapter 9 8) Open the left door until it sops and pull out the hinge shaft [1]. 9.4.11.2 Removing the Left Door (With Duplex Unit Type) MEMO: 0020-4489 When a duplex unit is installed, remove it before pulling out the hinge shaft for each access.

  • Page 229: Chapter 10 Maintenance And Inspection

    Chapter 10 Maintenance and Inspection...
  • Page 231 Contents Contents 10.1 Periodically Replaced Parts ............................10-1 10.1.1 Overview....................................10-1 10.1.2 Reader Unit ....................................10-1 10.1.3 Printer Unit....................................10-1 10.2 Durables and Consumables ............................10-1 10.2.1 Overview....................................10-1 10.2.2 Reader Unit ....................................10-1 10.2.3 Printer Unit....................................10-2 10.3 Scheduled Servicing Basic Procedure........................10-2 10.3.1 Scheduled Servicing.................................

  • Page 233: Periodically Replaced Parts

    Chapter 10 10.1 Periodically Replaced Parts 10.1.1 Overview 0020-4275 The machine has parts that must be replaced on a periodical basis to ensure a specific level of functional performance. (The loss of the function of any of these parts will significantly affect the machine performance, regardless of the presence/absence of external changes or damage.) If possible, schedule the replacement so that it coincides with a scheduled service visit.

  • Page 234: Printer Unit

    Chapter 10 10.2.3 Printer Unit 0020-4280 As of Apr. 2011 Parts name Parts No. Q'ty Life Remarks Cassette feed roller FF6-1621 The 2-stage cassette type uses two 100K rollers. Cassette separation roller FF6-1621 The 2-stage cassette type uses two 100K rollers.

  • Page 235: Chapter 11 Standards And Adjustments

    Chapter 11 Standards and Adjustments...
  • Page 237 Contents Contents 11.1 Scanning System ................................11-1 11.1.1 Procedure after Replacing the CIS............................11-1 11.2 Image Formation System ............................11-1 11.2.1 Procedure after Replacing the Developing Assembly ......................11-1 11.3 Electrical Components ...............................11-1 11.3.1 Procedure after Replacing the Image Processor PCB......................11-1...

  • Page 239: Scanning System

    Chapter 11 11.1 Scanning System 5) Press the OK key. 6) Using the upper/lower arrow keys on the operation panel, select "CS Po- sition Test". 11.1.1 Procedure after Replacing the CIS 7) Press the OK key. 8) Select "Yes" and press the OK key. 0020-4282 The optical system starts scanning.
  • Page 240 Chapter 11 11-2...

  • Page 241: Chapter 12 Correcting Faulty Images

    Chapter 12 Correcting Faulty Images...
  • Page 243 Contents Contents 12.1 Making Initial Checks ..............................12-1 12.1.1 Site Environment ..................................12-1 12.1.2 Checking the Paper .................................. 12-1 12.1.3 Checking the Placement of Paper ............................12-1 12.1.4 Checking the Durables ................................12-1 12.1.5 Checking the Units and Functional Systems ........................... 12-1 12.1.6 Others .......................................

  • Page 245: Making Initial Checks

    12.1.2 Checking the Paper 0020-4287 a. Be sure the paper being used is of a type recommended by Canon. b. Be sure that the paper is not moist. Try using paper fresh out of package. 12.1.3 Checking the Placement of Paper 0020-4288 a.
  • Page 246 Chapter 12 - Check the power cables and signal cables of options are connected properly. - Check whether no fuse on PCBs is blown. - Check whether the user uses the machine properly. 12-2...

  • Page 247: Others

    Chapter 12 12.1.6 Others 0020-4291 If a machine is brought from a cold to warm room, its inside can start to develop condensation, leading to various problems. a. condensation on the BD sensor is likely to cause problems associated with E100 b.

  • Page 248: Motor

    Chapter 12 12.2.2 Motor 12.2.2.1 List of Motors 0020-4293 <Reader Unit> Symbol Name Function M401 Reader motor Drives the carriage. M401 F-12-2 <Printer Unit> Symbol Name Function Fixing motor Drives the fixing unit. M201 M203 Polygon motor Drives the laser scanner. M204 Main motor Drives the main parts of the printer.

  • Page 249: Fan

    Chapter 12 12.2.3 Fan 12.2.3.1 List of Fans 0020-4294 <Reader Unit> The reader unit has no fan. <Printer Unit> Symbol Name Function Heat discharge fan Cools fixing unit. F-12-4 12.2.4 Sensor 12.2.4.1 List of Sensors 0020-4295 <Reader Unit> Symbol Name Function SR401 CIS HP sensor...
  • Page 250 Chapter 12 SR407 SR408 SR406 SR404 SR403 SR402 SR405 SR401 CIS1 F-12-5 <Printer Unit> Symbol Name Function Fixing film speed sensor Detects the fixing film speed. SR101 Fixing delivery sensor Detects fixing delivery. SR202 No.1 delivery sensor Detects delivery. SR203 Cassette 1 paper sensor Detects presence/absence of cassette 1 paper.

  • Page 251: Switch

    Chapter 12 12.2.5 Switch 12.2.5.1 List of Switches 0020-4296 <Reader Unit> The reader unit has no switch. <Printer Unit> Symbol Name Function Front cover switch Detects opening/closing of the front cover. Left door switch Detects opening/closing of the left door. Cassette 1 size detection switch Detects the cassette 1 paper size.

  • Page 252: Pcbs

    Chapter 12 <Printer unit> Symbol Name Function Fixing main heater Used as the main heater for fixing. Fixing sub heater Used as the sub heater for fixing. Cassette heater Prevents paper in the cassette from absorbing moisture. Varistor Used as a varistor. H1, H2 F-12-9 12.2.7 PCBs...
  • Page 253 Chapter 12 <Printer unit> Symbol Name Part No. Function Laser driver PCB Scanner unit controls the laser unit drive FM2-3383 BD PCB generates the BD signal Image processor PCB processes output image data for the printer unit DC controller PCB FM4-0027: iR2318,iR2320L,iR2320N,iR2420D,iR2420L controls the printer unit/option FM4-0028: iR2318L,iR2320...
  • Page 254 Chapter 12 F-12-12 12.2.7.2 List of PCBs 0028-6719 <Reader Unit> Symbol Name Part No. Function Reader controller PCB FM1-A798 controls the reader unit/ADF F-12-13 12-10...
  • Page 255 Chapter 12 <Printer unit> Symbol Name Part No. Function Laser driver PCB Scanner unit controls the laser unit drive FM2-3383 BD PCB generates the BD signal Image processor PCB processes output image data for the printer unit DC controller PCB FM4-9837:iR2422 controls the printer unit/option FM4-9838:iR2420...

  • Page 257: Chapter 13 Self Diagnosis

    Chapter 13 Self Diagnosis...
  • Page 259 Contents Contents 13.1 Error Code Table................................13-1 13.1.1 List of Error Codes................................... 13-1 13.2 Error Code Details ..............................13-2 13.2.1 Error Code Details ................................... 13-2 13.3 Jam Code..................................13-4 13.3.1 Jam Codes (Related to Printer Unit) ............................13-4 13.3.2 Jam Codes (Related to Finisher) .............................. 13-4 13.3.3 Jam Codes (Related to ADF) ..............................

  • Page 261: Error Code Table

    Chapter 13 13.1 Error Code Table 13.1.1 List of Error Codes 0020-4317 Detail Error Code Error Name/Explanation of Error Code E000 0000 Fixing temperature abnormal rise 0000 Fixing unit temperature rise detection (by main thermistor) E001 0001 Fixing unit temperature rise detection (by sub thermistor) E002 0000 Fixing unit temperature insufficient rise...

  • Page 262: Error Code Details

    Chapter 13 13.2 Error Code Details 13.2.1 Error Code Details 0020-4318 Display Detail Code Main Cause/Symptom Countermeasure Code E000 0000 Startup error The temperature detected by the main - Check the fixing film connector. or sub thermistor does not rise to the - Replace the fixing film unit.
  • Page 263 Chapter 13 Display Detail Code Main Cause/Symptom Countermeasure Code E733 0000 Erroneous communication between controller and printer Cannot communicate with the printer - Check the connectors of the DC controller at startup. PCB and image processor PCB for normal connection. - Check the power supply of the printer (Check whether initialization is performed at startup).

  • Page 264: Jam Code

    Chapter 13 13.3 Jam Code 13.3.1 Jam Codes (Related to Printer Unit) 0020-4324 Code Name Sensor No. Description 0104 Delay jam in paper SR209 The registration sensor cannot detect the leading edge of paper from pickup section the moment paper pickup starts to the moment the jam detection time is reached.

  • Page 265: Jam Codes (Related To Adf)

    Chapter 13 13.3.3 Jam Codes (Related to ADF) 0020-4326 Code Name Sensor No. Description 0000 Unknown jam Other errors 0007 Initial stationary PI6,PI7,PI8 Paper is detected in the transport path before the DADF starts initial operation. 0008 Read sensor delay PI7,PI8 The read sensor does not detect paper when the paper has been fed by the predetermined distance since reception of a pickup request.

  • Page 266: Finisher Error Codes

    Chapter 13 13.4 Finisher Error Codes 13.4.1 Error Code Details 0020-4329 Display Detail Main Cause/Symptom Countermeasure code Code E500 0001 Finisher communication error Data communication could not be - Check the connectors of the finisher controller performed normally. It has been retried PCB and DC controller PCB for normal connection.
  • Page 267 Chapter 13 Display Detail Main Cause/Symptom Countermeasure code Code E540 0001 - Standard tray shift motor or finisher controller PCB failure - Standard tray HP sensor failure - Standard tray clock sensor failure - Standard tray shift motor load failure The standard tray was moved but the - Check the connector of the standard tray HP paper surface was not detected.
  • Page 268 Chapter 13 Display Detail Main Cause/Symptom Countermeasure code Code E542 0001 - Optional tray motor or finisher controller PCB failure - Optional tray HP sensor failure - Optional tray clock sensor failure - Optional tray shift motor load failure The optional tray was operated, but the - Check the connector of the optional tray HP paper surface was not detected.

  • Page 269: Chapter 14 Service Mode

    Chapter 14 Service Mode...
  • Page 271 Contents Contents 14.1 Outline..................................14-1 14.1.1 Outline of Service Mode ................................14-1 14.1.2 Using the Service Mode................................14-1 14.2 Default settings ................................14-1 14.2.1 Service Mode Menus ................................14-1 14.3 Services Choice................................14-3 14.3.1 Scan Setting ..................................... 14-3 14.3.2 Printer Setting ..................................14-4 14.4 Adjust ..................................14-5 14.4.1 CIS Position Adjust..................................

  • Page 273: Outline

    Chapter 14 14.1 Outline 14.1.1 Outline of Service Mode 0022-9087 The items that follow may be checked/set using the machine's service mode, which is designed the way the service mode used in fax machines is designed in terms of contents and operation. Service's Choice These setting items are for image adjustment in printer assembly and for special mode for the field-related measures.

  • Page 274: Scan Setting

    Chapter 14 Title Item Sub item Initial setting Range of setting Function Service's Scan Setting Legal, Foolscap, M-Officio, Choice A-Foolscap, Folio, G-Legal, A-Officio, B-Officio, ADF special paper, standardized size: LGL Define LGL Size Legal Officio, E-Officio misidentification-ready ADF special paper, standardized size: LTR Define LTR Size LTR, G-LTR, A-LTR misidentification-ready...

  • Page 275: Services Choice

    Chapter 14 Title Item Sub item Initial setting Range of setting Function Counter Total Counter Total counter Pick-Up Counter Pickup-related counter Feeder Counter Feeder counter Jam Counter Jam-related counter MISC Counter Other counter Display Version Use it to indicate the version of the ROM Display Main (SYSTEM) on the image processor PCB.

  • Page 276: Printer Setting

    Chapter 14 [Define LGL size] Set to use special standard-sized paper that is not otherwise identifiable to the ADF (because it is misidentified as "LGL"). - Legal - Foolscap - M-Officio - A-Foolscap - Folio - G-Legal - A-Officio - B-Officio - Officio - E-Officio [Define LTR size]...
  • Page 277 Chapter 14 [Detailed Discussions of BitSW14-6] Select whether to enable or disable noise reduction mode during terminal temperature rises. Select "On" to start slowdown at a temperature lower than normal when printing on smaller-sized paper than B4. Slowdown control thus enabled prevents the thermal degradation of the fusing film grease, assuring smooth sliding among the fixing film, heater and film guide to cut squeaks.

  • Page 278: Adjust

    Chapter 14 14.4 Adjust 14.4.1 CIS Position Adjust 0022-5236 [Shading Position] White shading can be adjusted finely. Normally, do not change the setting value. If any operation error occurs after changing the setting value, change the setting value to the original one. [Sheet Position] This value is used when automatic scan position adjustment (Test>Scanner Test>CS Position Test) fails.

  • Page 279: Display

    Chapter 14 This copier is furnished with a counter, which can be used to gain rough measures of when to replace supplies. The counter set increments by one on counting each sheet of small-sized paper (up to A4/LTR) and by two on counting each sheet of large-sized paper (larger than A4/LTR). Item Counter Explanation...

  • Page 280: Service Label

    Chapter 14 Item Explanation Service Data List Service data list output Service Label Output of an entry format for the service label affixed to the rear cover as shipped Error Log Report Jam and error history output 14-8...

  • Page 281: Service Data List

    Chapter 14 14.7.2 Service Data List 0022-9124 Use it to check the settings associated with the service soft switch and service parameters. SERVICE DATA LIST COUNTRY/REGION CODE=SINGAPORE ---- SERVICE’S CHOICE ---- Scan Setting Define LGL Size Define LTR Size Define LTR-R Size LTR-R Shading Value-R Shading Value-G...

  • Page 282: Clear Data

    Chapter 14 JAM/ERR LOG REPORT 0000 [1] [2][3] [4] [5] [6] E000 0000 [7] [8] F-14-2 Jam history description (JAM) Item Explanation Jam occurred sequence Position 3:Main body, 4:Feeder, 5:Finisher Occurred area 0:Main body, 1:Feeder, 2:Finisher Jam code Feeder tray 0:Manual feed tray, 1:Cassette 1, 2:Cassette 2, 3:Cassette 3, 4:Cassette 4, 7:Duplex Paper size Error history description (ERR)

  • Page 283: Test

    Chapter 14 14.9 Test 14.9.1 Outline 0022-9127 Test mode must be executed by keeping track the flow of menu items appearing on the LCD. Menu items in test mode are organized into seven blocks as described below. - DRAM test Checks to see if data can be correctly written to and read from DRAM.

  • Page 284: Aging Test

    Chapter 14 Use it to make sure that the print Use it to make sure that the print pattern does not have white lines pattern does not have contraction/ or uneven image. elongation of an image or dirt/black line.s F-14-3 14.9.5 Aging Test 0022-5250 Not used.
  • Page 285 Chapter 14 - Sensor [2] Display Position Sensor Name Explaination SW4(left) Cassette 1 size switch 1:Pressed, 0:Not pressed SW3(middle left) 1:Pressed, 0:Not pressed SW2(middle right) 1:Pressed, 0:Not pressed SW1(right) 1:Pressed, 0:Not pressed LOCK Cover switch (SW2 and SW3) 1:Cover open, 0: Cover closed SW4(left) Cassette 2 size switch 1:Pressed, 0:Not pressed...

  • Page 286: Roller Clear Mode

    Chapter 14 - Key test Press the start key after the LED lamp test. The test succeeds if the characters appearing in the LCD are erased when the corresponding keys are pressed. The flow of operation panel testing is shown below. Pan e l Te st LCD test Press the OK key.

  • Page 287: Chapter 15 Upgrading

    Chapter 15 Upgrading...
  • Page 289 Contents Contents 15.1 Outline..................................15-1 15.1.1 Overview of Upgrade................................15-1 15.2 Downloading System Software..........................15-1 15.2.1 Downloading System ................................15-1 15.2.1.1 Downloading Procedure....................................15-1 15.2.2 Downloading BOOT ................................15-4 15.2.2.1 Downloading Procedure....................................15-4...

  • Page 291: Outline

    Chapter 15 15.1 Outline 15.1.1 Overview of Upgrade 0020-4299 This machine can be upgraded by downloading system software programs from the personal computer (hereafter called as the PC) in which a user support tool (hereafter called UST) has been loaded. The optiion can be upgraded by downloading system software programs from the personal computer (hereafter called as the PC) in which a service support tool (hereafter called SST) has been loaded.
  • Page 292 Chapter 15 8) Select “Next” following the instruction shown on the screen. F-15-2 9) Select “Next” following the instruction shown on the screen. F-15-3 15-2...
  • Page 293 Chapter 15 10) Select “Next” following the instruction shown on the screen. F-15-4 11) Select “Start” following the instruction shown on the screen. F-15-5 15-3...

  • Page 294: Downloading Boot

    Chapter 15 12) Select “Yes” following the instruction shown on the screen. F-15-6 13) The following screen appears. "UPDATING FIRMWARE" appears on the control panel of this machine. F-15-7 14) When version update is completed, the following screen appears. Turn off this machine and then turn it on again to allow the new firmware to take effect. F-15-8 15.2.2 Downloading BOOT 15.2.2.1 Downloading Procedure...

  • Page 295: Service Tools

    Chapter 16 Service Tools...
  • Page 297 Contents Contents 16.1 Service Tools................................16-1 16.1.1 Special Tools.................................... 16-1 16.1.2 Oils and Solvents ..................................16-1...

  • Page 299: Special Tools

    Chapter 16 16.1 Service Tools 16.1.1 Special Tools 0020-4305 In addition to the standard tools set, you will need the following special tools for servicing of the machine: Tool name Tool No. Rank Shape Uses Digital multimeter FY9-2002 For making electrical checks.

  • Page 301: Backup Data

    Chapter 17 Backup Data...
  • Page 303 Contents Contents 17.1 Backup Data ................................17-1...
  • Page 305 17.1 Backup Data 0027-3072 T-17-1 Delete Replacement User function Service function *3 Commo Data Copy Printer System Data to Be Stored Locatio ImageP Reader Settings Settings Settings Settings Admini rocesso controll > > > > Dept. Service strator controll Type History Initializ Initializ...
  • Page 307 May 12 2014...

This manual is also suitable for:

Ir2318 seriesIr2420 seriesIr2320 series

Table of Contents