Canon IR1730 Service Manual

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September 26, 2011

Product Overview

Technical Explanation

Periodical Service

Disassembly/Assembly

Adjustment

Troubleshooting

Error Code

Service Mode

Installation

Appendix

imageRUNNER 1750/1740/1730 Series

Service Manual

Revision 1

987654321

Application

This manual has been issued by Canon Inc. for qualied persons to learn technical theory, installation, maintenance, and repair of products. This manual covers all localities where the products are sold. For this reason, there may be information in this manual that does not apply to your locality.

Corrections

This manual may contain technical inaccuracies or typographical errors due to improvements or changes in products. When changes occur in applicable products or in the contents of this manual, 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.

The following paragraph does not apply to any countries where such provisions are inconsistent with local law.

Trademarks

The product names and company names used in this manual are the registered trademarks of the individual companies.

This manual is copyrighted with all rights reserved. Under the copyright laws, this manual may not be copied, reproduced or translated into another language, in whole or in part, without the consent of Canon Inc.

Caution

Use of this manual should be strictly supervised to avoid disclosure of condential information.

Explanation of Symbols

The following symbols are used throughout this Service Manual.

Symbols Explanation Symbols Explanation

Check.

Check visually. Insert the claw.

Remove the claw.

The following rules apply throughout this Service Manual:

1. Each chapter contains sections explaining the purpose of specic functions and the relationship between electrical and mechanical systems with reference to the timing of operation.

In the diagrams,

name accompanies the symbol, the arrow

represents the path of mechanical drive; where a signal

indicates the direction of the electric signal. The expression "turn on the power" means ipping on the power switch, closing the front door, and closing the delivery unit door, which results in supplying the machine with power.

Check the noise. Use the bundled part.

Disconnect the connector. Push the part.

Connect the connector. Plug the power cable.

Remove the cable/wire from the cable guide or wire saddle.

Set the cable/wire to the cable guide or wire saddle.

Remove the screw.

Turn on the power.

2. In the digital circuits, '1' is used to indicate that the voltage level of a given signal is "High", while '0' is used to indicate "Low". (The voltage value, however, differs from circuit to circuit.) In addition, the asterisk (*) as in "DRMD*" indicates that the DRMD signal goes on when '0'.

In practically all cases, the internal mechanisms of a microprocessor cannot be checked

in the eld. Therefore, the operations of the microprocessors used in the machines are not discussed: they are explained in terms of from sensors to the input of the DC controller PCB and from the output of the DC controller PCB to the loads.

The descriptions in this Service Manual are subject to change without notice for product improvement or other purposes, and major changes will be communicated in the form of Service Information bulletins. All service persons are expected to have a good understanding of the contents of this Service Manual and all relevant Service Information bulletins and be able to identify and isolate faults in the machine.

Tighten the screw.

0 Safety Precautions

CDRH Act -----------------------------------------------------------------------0-2 Laser Safety --------------------------------------------------------------------0-2 Handling of Laser System --------------------------------------------------0-2 Turn power switch ON -------------------------------------------------------0-3 Power Supply ------------------------------------------------------------------0-3 Safety of Toner -----------------------------------------------------------------0-4

About Toner ------------------------------------------------------------------------- 0-4 Toner on Clothing or Skin -------------------------------------------------------- 0-4

Notes When Handling the Lithium and Ni-MH Batteries ------------0-4 Notes Before it Works Serving ---------------------------------------------0-4 Points to Note at Cleaning --------------------------------------------------0-4 Notes On Assembly/Disassembly -----------------------------------------0-4

1 Product Overview

Product Lineup -----------------------------------------------------------------1-2

Host machine ----------------------------------------------------------------------- 1-2

Host machine conguration -------------------------------------------------------------- 1-2 Model type ------------------------------------------------------------------------------------ 1-2

Option --------------------------------------------------------------------------------- 1-2

Pickup/Delivery / Image Reading System Options --------------------------------- 1-2 Function expansion system options --------------------------------------------------- 1-3

Features -------------------------------------------------------------------------1-4

Product Features ------------------------------------------------------------------- 1-4

Secured Print Jobs ------------------------------------------------------------------------- 1-5 Service Mode Disable of USB memory function ------------------------------------ 1-5 Setting “Auto-clear Time” to “short” ---------------------------------------------------- 1-5 Arabic support (In Europe only) --------------------------------------------------------- 1-5 Communication test function of E-RDS ----------------------------------------------- 1-5

Specications ------------------------------------------------------------------1-6

Specications ----------------------------------------------------------------------- 1-6 Weight and Size -------------------------------------------------------------------- 1-7

Productivity (Print speed) -------------------------------------------------------- 1-7 Paper type --------------------------------------------------------------------------- 1-7

Pickup ----------------------------------------------------------------------------------------- 1-7

Parts Name ---------------------------------------------------------------------1-8

External View ----------------------------------------------------------------------- 1-8 Cross Sectional View ------------------------------------------------------------1-10 Operation --------------------------------------------------------------------------- 1-11

Power Switch -------------------------------------------------------------------------------1-11 Description of Control Panel ------------------------------------------------------------ 1-11

2 Technical Explanation

Basic Conguration -----------------------------------------------------------2-2

Functional Conguration --------------------------------------------------------- 2-2

Basic sequence ----------------------------------------------------------------------------- 2-2

Original Exposure and Feed System -------------------------------------2-3

Construction ------------------------------------------------------------------------- 2-3

Specications/controls/functions -------------------------------------------------------- 2-3 Major Components ------------------------------------------------------------------------- 2-4 Reader Controller PCB -------------------------------------------------------------------- 2-6

Basic Operation -------------------------------------------------------------------- 2-7

Basic Sequence ----------------------------------------------------------------------------- 2-7 ADF Operation Mode ---------------------------------------------------------------------- 2-8

Controls ----------------------------------------------------------------------------- 2-11

Controlling the Scanner Drive System -----------------------------------------------2-11 Contact Image Sensor (CIS) ------------------------------------------------------------2-12 Enlargement / Reduction ----------------------------------------------------------------2-13 Original Size Detection by Original Size Detection Sensors --------------------2-14 Dust Detection Control -------------------------------------------------------------------2-16 Dust Detection Preventive Process ---------------------------------------------------2-17 Dust Detection Correction Control-----------------------------------------------------2-18 Image Processing -------------------------------------------------------------------------2-18

Control of ADF ---------------------------------------------------------------------2-20

Original Size Detection by ADF --------------------------------------------------------2-20

Pickup and Feed Operations -----------------------------------------------------------2-22 Reversal Operation------------------------------------------------------------------------2-22 Delivery Operation-------------------------------------------------------------------------2-24 Jam Detection ------------------------------------------------------------------------------2-25

Work of Service -------------------------------------------------------------------2-26

Periodically Replaced Parts -------------------------------------------------------------2-26 Consumable Parts -------------------------------------------------------------------------2-26 Periodical Servicing -----------------------------------------------------------------------2-26 When replacing the parts ----------------------------------------------------------------2-26

Main Controller -------------------------------------------------------------- 2-27

Overview ---------------------------------------------------------------------------- 2-27

Conguration/Function -------------------------------------------------------------------2-27

Controls -----------------------------------------------------------------------------2-28

Image Data Flow ---------------------------------------------------------------------------2-28 Image Processing Module Conguration --------------------------------------------2-28 Reader Unit Input Image Processing -------------------------------------------------2-29 Compression/Expansion/Edit Processing Block -----------------------------------2-29 Printer Output Image Processing ------------------------------------------------------2-30 Image Data Flow of Copy Function ---------------------------------------------------2-30 Image Data Flow of SEND Function --------------------------------------------------2-31 Image Data Flow of FAX Transmission Function ----------------------------------2-31 Image Data Flow of FAX Reception Function --------------------------------------2-32 Image Data Flow of PDL Function ----------------------------------------------------2-32

Service Tasks ----------------------------------------------------------------------2-33

Periodically Replaced Parts -------------------------------------------------------------2-33 Consumable Parts -------------------------------------------------------------------------2-33 Periodical Servicing -----------------------------------------------------------------------2-33

Laser Exposure System --------------------------------------------------- 2-34

Construction ------------------------------------------------------------------------2-34

Specications/Controls/Functions -----------------------------------------------------2-34 Main Conguration Parts ----------------------------------------------------------------2-34 Control System Conguration ----------------------------------------------------------2-35

Basic Sequence -------------------------------------------------------------------2-36

Basic Sequence ----------------------------------------------------------------------------2-36

Various Controls -------------------------------------------------------------------2-37

Controlling the Laser Activation Timing ----------------------------------------------2-37 Controlling the Intensity of Laser Light -----------------------------------------------2-39 Controlling the Laser Scanner Motor -------------------------------------------------2-39

Controlling the Laser Shutter -----------------------------------------------------------2-39

Image Formation System ------------------------------------------------- 2-40

Basic Conguration ---------------------------------------------------------------2-40

List of Image Formation Specications ----------------------------------------------2-40 Major Components in image formation system ------------------------------------2-41 Image Formation Process ---------------------------------------------------------------2-42

Basic Sequence -------------------------------------------------------------------2-43

Initial rotation sequence ------------------------------------------------------------------2-43 Sequence at printing ----------------------------------------------------------------------2-43 Last rotation sequence -------------------------------------------------------------------2-43

Controls -----------------------------------------------------------------------------2-44

Drum Unit ------------------------------------------------------------------------------------2-44 Developing Assembly ---------------------------------------------------------------------2-45 Toner Supply Area -------------------------------------------------------------------------2-46 Transfer Unit --------------------------------------------------------------------------------2-48 Chang in bias by user mode (Special Mode) ---------------------------------------2-49 Waste Toner Box ---------------------------------------------------------------------------2-49

Service Tasks ----------------------------------------------------------------------2-50

Periodically Replaced Parts -------------------------------------------------------------2-50 Consumable Parts -------------------------------------------------------------------------2-50 Periodical Servicing -----------------------------------------------------------------------2-50

Fixing System ---------------------------------------------------------------- 2-51

Overview ---------------------------------------------------------------------------- 2-51

Features --------------------------------------------------------------------------------------2-51 Specications -------------------------------------------------------------------------------2-51 Major Components ------------------------------------------------------------------------2-52

Controls -----------------------------------------------------------------------------2-53

Fixing Temperature Control (temperature control) --------------------------------2-53 Standby Temperature Controll ----------------------------------------------------------2-54 Print temperature control ----------------------------------------------------------------2-54 Down Sequence Control -----------------------------------------------------------------2-56 Change in xing performance by user mode (Special Mode) ------------------2-57 Pre-xing arch level control -------------------------------------------------------------2-58 Protection function-------------------------------------------------------------------------2-59

Service Tasks ----------------------------------------------------------------------2-59

Periodically Replaced Parts -------------------------------------------------------------2-59 Consumable Parts -------------------------------------------------------------------------2-59 Periodical Servicing -----------------------------------------------------------------------2-59

Pickup Feed System ------------------------------------------------------- 2-60

Overview ---------------------------------------------------------------------------- 2-60

Specications -------------------------------------------------------------------------------2-60 Parts Conguration ------------------------------------------------------------------------2-60 Paper Path ----------------------------------------------------------------------------------2-62

Controls -----------------------------------------------------------------------------2-63

Overview -------------------------------------------------------------------------------------2-63 Cassette Pickup Assembly --------------------------------------------------------------2-63 Multi-purpose Tray Pickup Assembly -------------------------------------------------2-67 Fixing/Registration Assembly -----------------------------------------------------------2-67 Delivery Assembly -------------------------------------------------------------------------2-68 Reverse/Duplex Assembly --------------------------------------------------------------2-69 Jam Detection ------------------------------------------------------------------------------2-70

Work of Service -------------------------------------------------------------------2-71

Periodical ServicePeriodical Service -------------------------------------------------2-71 Consumables -------------------------------------------------------------------------------2-71 Periodically Servicing ---------------------------------------------------------------------2-71

External Auxiliary System ------------------------------------------------- 2-72

Controls -----------------------------------------------------------------------------2-72

Software counter ---------------------------------------------------------------------------2-72 Fan --------------------------------------------------------------------------------------------2-72 Power supply -------------------------------------------------------------------------------2-73

Service Tasks ----------------------------------------------------------------------2-75

Periodically Replaced Parts -------------------------------------------------------------2-75 Consumable Parts -------------------------------------------------------------------------2-75 Periodical Servicing -----------------------------------------------------------------------2-75

Embedded RDS ------------------------------------------------------------- 2-76

Product Overview -----------------------------------------------------------------2-76

Overview -------------------------------------------------------------------------------------2-76 Features and benets --------------------------------------------------------------------2-76

Service cautions -------------------------------------------------------------------2-76 E-RDS Setup -----------------------------------------------------------------------2-77

Conrmation and preparation in advance -------------------------------------------2-77 E-RDS setting items ----------------------------------------------------------------------2-80 Steps to E-RDS settings -----------------------------------------------------------------2-80 Initializing E-RDS settings ---------------------------------------------------------------2-82 COM-LOG Report -------------------------------------------------------------------------2-82

FAQ ----------------------------------------------------------------------------------- 2-83

Troubleshooting ------------------------------------------------------------------- 2-84 Error code and strings ----------------------------------------------------------- 2-86

3 Periodical Service

List of periodically replacement parts, consumable parts and locations for cleaning ---------------------------------------------------------3-2

periodically replacement parts -------------------------------------------------- 3-2 Consumable parts ----------------------------------------------------------------- 3-2

4 Disassembly/Assembly

Preface --------------------------------------------------------------------------4-2

Outline -------------------------------------------------------------------------------- 4-2

List of Parts ---------------------------------------------------------------------4-3

External View ----------------------------------------------------------------------- 4-3

Front Side ------------------------------------------------------------------------------------- 4-3 Rear Side ------------------------------------------------------------------------------------- 4-4 Internal View --------------------------------------------------------------------------------- 4-4

List of Main Unit -------------------------------------------------------------------- 4-5 Electrical Components ------------------------------------------------------------ 4-7

ADF Unit -------------------------------------------------------------------------------------- 4-7 Reader Unit ---------------------------------------------------------------------------------- 4-8 Printer Unit ----------------------------------------------------------------------------------- 4-9

List of Connectors -----------------------------------------------------------4-15 External Cover/Internal System -----------------------------------------4-22

Location -----------------------------------------------------------------------------4-22

Front Side ------------------------------------------------------------------------------------4-22 Rear Side ------------------------------------------------------------------------------------4-23 Internal View --------------------------------------------------------------------------------4-23

Removing the Front Cover -----------------------------------------------------4-24

Procedure ------------------------------------------------------------------------------------4-24

Removing the Rear Cover ------------------------------------------------------4-24

Procedure ------------------------------------------------------------------------------------4-24

Removing the Right Front Cover ----------------------------------------------4-25

Procedure ------------------------------------------------------------------------------------4-25

Removing the Right Rear Cover ---------------------------------------------- 4-26

Procedure ------------------------------------------------------------------------------------4-26

Removing the Right Door Unit -------------------------------------------------4-26

Preparation ----------------------------------------------------------------------------------4-26 Procedure ------------------------------------------------------------------------------------4-26

Removing the Left Cover -------------------------------------------------------4-27

Preparation ----------------------------------------------------------------------------------4-27 Procedure ------------------------------------------------------------------------------------4-27

Removing the Inner Rear Cover ----------------------------------------------4-28

Preparation ----------------------------------------------------------------------------------4-28 Procedure ------------------------------------------------------------------------------------4-28

Removing the Delivery Outer Cover -----------------------------------------4-29

Procedure ------------------------------------------------------------------------------------4-29

Removing the Delivery Inner Cover ------------------------------------------4-29

Preparation ----------------------------------------------------------------------------------4-29 Procedure ------------------------------------------------------------------------------------4-29

Removing the Right Inner Cover ----------------------------------------------4-30

Preparation ----------------------------------------------------------------------------------4-30 Procedure ------------------------------------------------------------------------------------4-30

Removing the Left Inner Cover ------------------------------------------------4-32

Preparation ----------------------------------------------------------------------------------4-32 Procedure ------------------------------------------------------------------------------------4-32

Removing the Support Column Cover ---------------------------------------4-32

Preparation ----------------------------------------------------------------------------------4-32 Procedure ------------------------------------------------------------------------------------4-32

Removing the Reader Front Cover -------------------------------------------4-33

Preparation ----------------------------------------------------------------------------------4-33 Procedure ------------------------------------------------------------------------------------4-33

Removing the Reader Rear Cover -------------------------------------------4-34

Preparation ----------------------------------------------------------------------------------4-34 Procedure ------------------------------------------------------------------------------------4-34

Removing the Reader Bottom Cover ----------------------------------------4-36

Preparation ----------------------------------------------------------------------------------4-36 Procedure ------------------------------------------------------------------------------------4-36

Removing the Control Panel Unit ---------------------------------------------4-36

Preparation ----------------------------------------------------------------------------------4-36 Procedure ------------------------------------------------------------------------------------4-36

Original Exposure/Feed System ---------------------------------------- 4-39

Location -----------------------------------------------------------------------------4-39 Removing the Copyboard Glass ---------------------------------------------- 4-40

Procedure ------------------------------------------------------------------------------------4-40

When Replacing the Copyboard Glass ----------------------------------------------4-41

Removing the ADF Reading Glass -------------------------------------------4-42

When Replacing the ADF Reading Glass -------------------------------------------4-43

Removing the ADF Unit --------------------------------------------------------- 4-43

Procedure ------------------------------------------------------------------------------------4-43

Removing the Reader Unit -----------------------------------------------------4-44

Preparation ----------------------------------------------------------------------------------4-44 Procedure ------------------------------------------------------------------------------------4-44

Removing the Reader Controller PCB ---------------------------------------4-46

Preparation ----------------------------------------------------------------------------------4-46 Procedure ------------------------------------------------------------------------------------4-46

Removing the CIS Unit ---------------------------------------------------------- 4-47

Preparation ----------------------------------------------------------------------------------4-47 Procedure ------------------------------------------------------------------------------------4-47 When Replacing the CIS Unit ----------------------------------------------------------4-48

Removing the ADF Upper Cover Unit ---------------------------------------4-48

Procedure ------------------------------------------------------------------------------------4-48

Removing the ADF Separation Pad ------------------------------------------4-50

Procedure ------------------------------------------------------------------------------------4-50

Removing the ADF Pickup Roller Unit ---------------------------------------4-51

Preparation ----------------------------------------------------------------------------------4-51 Procedure ------------------------------------------------------------------------------------4-51

Removing the ADF Pickup Tray ----------------------------------------------- 4-52

Procedure ------------------------------------------------------------------------------------4-52

Removing the ADF Pickup Unit -----------------------------------------------4-53

Preparation ----------------------------------------------------------------------------------4-53 Procedure ------------------------------------------------------------------------------------4-53

Controller System ----------------------------------------------------------- 4-57

Location -----------------------------------------------------------------------------4-57 Removing the DC Controller PCB -------------------------------------------- 4-57

Preparation before Replacement ------------------------------------------------------4-57 Preparation ----------------------------------------------------------------------------------4-57 Procedure ------------------------------------------------------------------------------------4-57 After Replacement/RAM Clearing -----------------------------------------------------4-58

Removing the Main Controller PCB ------------------------------------------4-58

Preparation before Replacement ------------------------------------------------------4-58 Preparation ----------------------------------------------------------------------------------4-58 Procedure ------------------------------------------------------------------------------------4-58

After Replacement-------------------------------------------------------------------------4-60

Removing the HVT PCB --------------------------------------------------------4-60

Preparation ----------------------------------------------------------------------------------4-60 Procedure ------------------------------------------------------------------------------------4-60

Removing the Power Supply PCB --------------------------------------------4-62

Preparation ----------------------------------------------------------------------------------4-62 Procedure ------------------------------------------------------------------------------------4-62

Laser Exposure System --------------------------------------------------- 4-63

Location -----------------------------------------------------------------------------4-63 Removing the Laser Scanner Unit --------------------------------------------4-63

Preparation ----------------------------------------------------------------------------------4-63 Procedure ------------------------------------------------------------------------------------4-63 After Replacing the Laser Scanner Unit ---------------------------------------------4-65

Image Formation System ------------------------------------------------- 4-66

Location -----------------------------------------------------------------------------4-66 Removing the Waste Toner Container ---------------------------------------4-67

Procedure ------------------------------------------------------------------------------------4-67

Removing the Toner Cartridge -------------------------------------------------4-68

Procedure ------------------------------------------------------------------------------------4-68

Removing the Drum Unit --------------------------------------------------------4-68

Preparation ----------------------------------------------------------------------------------4-68 Procedure ------------------------------------------------------------------------------------4-68

Removing the Developing Assembly -----------------------------------------4-69

Preparation ----------------------------------------------------------------------------------4-69 Procedure ------------------------------------------------------------------------------------4-69

Removing the Transfer Roller --------------------------------------------------4-71

Procedure ------------------------------------------------------------------------------------4-71

Removing the Separation Static Eliminator --------------------------------4-72

Procedure ------------------------------------------------------------------------------------4-72

Removing the Main Drive Unit -------------------------------------------------4-73

Preparation ----------------------------------------------------------------------------------4-73 Procedure ------------------------------------------------------------------------------------4-73

Removing the Hopper Unit -----------------------------------------------------4-75

Preparation ----------------------------------------------------------------------------------4-75 Procedure ------------------------------------------------------------------------------------4-75

Fixing System ---------------------------------------------------------------- 4-79

Location -----------------------------------------------------------------------------4-79

Removing the Fixing Assembly ------------------------------------------------4-79

Procedure ------------------------------------------------------------------------------------4-79

Removing the Fixing Drive Unit -----------------------------------------------4-81

Preparation ----------------------------------------------------------------------------------4-81 Procedure ------------------------------------------------------------------------------------4-81

Pickup Feed System ------------------------------------------------------- 4-83

Location -----------------------------------------------------------------------------4-83 Removing the Cassette Feed Roller ----------------------------------------- 4-83

Procedure ------------------------------------------------------------------------------------4-83

Removing the Cassette Separation Roller ---------------------------------4-85

Procedure ------------------------------------------------------------------------------------4-85

Removing the Cassette Pickup Roller ---------------------------------------4-86

Procedure ------------------------------------------------------------------------------------4-86

Removing the Cassette Pickup Idler Gear ---------------------------------4-87

Preparation ----------------------------------------------------------------------------------4-87 Procedure ------------------------------------------------------------------------------------4-87

Removing the Cassette Pickup Unit -----------------------------------------4-87

Preparation ----------------------------------------------------------------------------------4-87 Procedure ------------------------------------------------------------------------------------4-87

Removing the Multi-purpose Tray Pickup Roller --------------------------4-88

Procedure ------------------------------------------------------------------------------------4-88

Removing the Multi-purpose Tray Separation Pad -----------------------4-91

Preparation ----------------------------------------------------------------------------------4-91 Procedure ------------------------------------------------------------------------------------4-91

Removing the Delivery/Reverse Unit ----------------------------------------4-92

Preparation ----------------------------------------------------------------------------------4-92 Procedure ------------------------------------------------------------------------------------4-92

5 Adjustment

Overview ------------------------------------------------------------------------5-2

Adjustment when replacing parts ---------------------------------------------- 5-2 Image Position Adjustment ------------------------------------------------------ 5-2

Adjustment when Replacing the Parts -----------------------------------5-3

Original Exposure and Feed System ----------------------------------------- 5-3

When Replacing the CIS Unit ----------------------------------------------------------- 5-3 When Replacing the Copyboard Glass ----------------------------------------------- 5-3 When Replacing the ADF Reading Glass -------------------------------------------- 5-4

Main Controller System ---------------------------------------------------------- 5-4

Before Replacing the Main Controller PCB ------------------------------------------ 5-4 After Replacing the Main Controller PCB --------------------------------------------- 5-4 Before Replacing the DC Controller PCB -------------------------------------------- 5-5 After Replacing the DC Controller PCB ----------------------------------------------- 5-5 When Replacing the RAM PCB --------------------------------------------------------- 5-5

Laser Exposure System ---------------------------------------------------------- 5-5

After Replacing the Laser Scanner Unit ---------------------------------------------- 5-5

Image Position Adjustment -------------------------------------------------5-6

Left Edge Margin Adjustment --------------------------------------------------- 5-6 Leading Edge Non-image Width Adjustment ------------------------------- 5-6 Left Edge Non-image Width Adjustment ------------------------------------- 5-7 Image Position Adjustment for ADF ------------------------------------------- 5-8

Creation of Adjusting Test Sheet -------------------------------------------------------- 5-8 Squareness Adjustment ------------------------------------------------------------------- 5-8 Adjustment of Image Magnication Factor for Sub Scanning Section -------- 5-9 Horizontal Registration Adjustment ---------------------------------------------------5-10 Leading Edge Registration Adjustment ----------------------------------------------5-10

6 Troubleshooting

Initial Check --------------------------------------------------------------------6-2

List of Initial Check Items -------------------------------------------------------- 6-2

Test Print ------------------------------------------------------------------------6-3

Overview ----------------------------------------------------------------------------- 6-3 Steps to Select a Test Print Type ---------------------------------------------- 6-3 How to View the Test Print ------------------------------------------------------- 6-4

Grid (TYPE=01) ----------------------------------------------------------------------------- 6-4 Halftone (TYPE=02) ----------------------------------------------------------------------- 6-4 Solid black (TYPE=03) -------------------------------------------------------------------- 6-5 Solid white (TYPE=04) -------------------------------------------------------------------- 6-5 4dot-6space / dot-6space (TYPE=06 / 07) ------------------------------------------- 6-6

Troubleshooting items -------------------------------------------------------6-7

List of Troubleshooting Items --------------------------------------------------- 6-7 Image Failure ----------------------------------------------------------------------- 6-7

Toner soiling at the back side of paper ------------------------------------------------ 6-7 Soiling at the leading/trailing edge of paper ----------------------------------------- 6-7 Poor transfer of the image, hollow character ---------------------------------------- 6-8

Image smear/toner bleed/condensation ---------------------------------------------- 6-8 Large curl of paper ------------------------------------------------------------------------- 6-9 Paper jam in solid image when the leading edge margin is small (1 to 4mm) -6-9 Jam with thin paper (63g/cm2 or lighter) --------------------------------------------- 6-9 The toner bottle set lever cannot be operated or is hard to operate. ---------- 6-9 Abnormal noise at pickup from the Multi-purpose Tray -------------------------6-10

Software to Be Upgraded and Upgrading Method ------------------ 6-11

Overview ---------------------------------------------------------------------------- 6-11 Procedure ---------------------------------------------------------------------------6-12

7 Error Code

Overview ------------------------------------------------------------------------7-2

Outline -------------------------------------------------------------------------------- 7-2

Error Code ----------------------------------------------------------------------7-3

Error Code Details ----------------------------------------------------------------- 7-3 Error codes related to Fax ------------------------------------------------------7-10

Overview -------------------------------------------------------------------------------------7-10 User error codes ---------------------------------------------------------------------------7-10 Service error codes -----------------------------------------------------------------------7-10

Jam Code --------------------------------------------------------------------- 7-12

Main Unit ----------------------------------------------------------------------------7-12 ADF -----------------------------------------------------------------------------------7-13 Staple Finisher-H1 ----------------------------------------------------------------7-14

Alarm Code ------------------------------------------------------------------- 7-15

Alarm Code Details ---------------------------------------------------------------7-15

8 Service Mode

Outline ---------------------------------------------------------------------------8-2

Outline of Service Mode ---------------------------------------------------------- 8-2 Using the Mode --------------------------------------------------------------------- 8-3 Setting of Bit Switch --------------------------------------------------------------- 8-3

Outline ----------------------------------------------------------------------------------------- 8-3

Back-Up ------------------------------------------------------------------------------ 8-4 Service Label ----------------------------------------------------------------------- 8-4

Details of Service Mode -----------------------------------------------------8-5

#SSSW ------------------------------------------------------------------------------- 8-5

SSSW Composition ------------------------------------------------------------------------ 8-5 Details ----------------------------------------------------------------------------------------- 8-5

#MENU ------------------------------------------------------------------------------8-15

Menu Switch Composition ---------------------------------------------------------------8-15 Deatails ---------------------------------------------------------------------------------------8-15

#NUMERIC -------------------------------------------------------------------------8-16

Numerical Parameter Composition----------------------------------------------------8-16 Details ----------------------------------------------------------------------------------------8-17

#SCAN -------------------------------------------------------------------------------8-22

Setting of Scanner Functions (SCANNER) -----------------------------------------8-22 SCAN SW -----------------------------------------------------------------------------------8-25 Numeric Parameter Settings (Numeric Prama.) -----------------------------------8-26 READER -------------------------------------------------------------------------------------8-27

#PRINT ------------------------------------------------------------------------------8-32

Numerin Parameter Settings (Numeric Prama). -----------------------------------8-32 Service Soft Switch Settings (PRINTER) --------------------------------------------8-33 List of Functions ----------------------------------------------------------------------------8-34 List of Functions(PRINT CST) ----------------------------------------------------------8-37

#NETWORK ------------------------------------------------------------------------8-38

Conguration --------------------------------------------------------------------------------8-38 Conrmation of contents of CA certicate -------------------------------------------8-39

#CODEC ---------------------------------------------------------------------------- 8-39

Conguration --------------------------------------------------------------------------------8-39 Details ----------------------------------------------------------------------------------------8-39

#SYSTEM ---------------------------------------------------------------------------8-40

Conguration --------------------------------------------------------------------------------8-40 Details of Bit Switch -----------------------------------------------------------------------8-40 Details of System Numeric --------------------------------------------------------------8-41

#ACC ---------------------------------------------------------------------------------8-42

Conguration --------------------------------------------------------------------------------8-42

#COUNTER ------------------------------------------------------------------------ 8-42

Counters -------------------------------------------------------------------------------------8-42 Clearing Counters -------------------------------------------------------------------------8-43

#LMS ---------------------------------------------------------------------------------8-43

Conguration --------------------------------------------------------------------------------8-43 Outline ----------------------------------------------------------------------------------------8-44 Details ----------------------------------------------------------------------------------------8-44

Method of conrming license option --------------------------------------------------8-44 Inactivity of the transmitted license----------------------------------------------------8-44 Erasing a License--------------------------------------------------------------------------8-46

#E-RDS ------------------------------------------------------------------------------8-47

Conguration --------------------------------------------------------------------------------8-47

#REPORT ---------------------------------------------------------------------------8-47

Conguration --------------------------------------------------------------------------------8-47 Details ----------------------------------------------------------------------------------------8-48

#DOWNLOAD ---------------------------------------------------------------------8-52

Download ------------------------------------------------------------------------------------8-52

#CLEAR -----------------------------------------------------------------------------8-52

Conguration --------------------------------------------------------------------------------8-52

#DISPLAY --------------------------------------------------------------------------- 8-53

Conguration --------------------------------------------------------------------------------8-53

#ROM --------------------------------------------------------------------------------8-53

Conguration --------------------------------------------------------------------------------8-53

#TEST MODE ---------------------------------------------------------------------8-53

Outline ----------------------------------------------------------------------------------------8-53 Conguration --------------------------------------------------------------------------------8-54 Details ----------------------------------------------------------------------------------------8-54

9 Installation

How to check this Installation Procedure -------------------------------9-2

When Using the parts included in the package ---------------------------- 9-2 Symbols in the Illustration ------------------------------------------------------- 9-2

Installation ----------------------------------------------------------------------9-2 Option Installation Sequence ----------------------------------------------9-2 Drum Heater-D1 ---------------------------------------------------------------9-3

Points to Note at Installation ---------------------------------------------------- 9-3 Checking the Contents ----------------------------------------------------------- 9-3 Check Items when Turning OFF the Power --------------------------------- 9-3 Installation Outline Drawing ----------------------------------------------------- 9-3 Installation Procedure ------------------------------------------------------------- 9-4

Removing the Covers---------------------------------------------------------------------- 9-4 Before Installing ----------------------------------------------------------------------------- 9-5 Installing the Environment Drum Heater ---------------------------------------------- 9-8

Copy Card Reader-F1 ----------------------------------------------------- 9-11

Check Item of the Contents ----------------------------------------------------9-11 Points to Note at Installation ---------------------------------------------------9-11 Checking the Contents ----------------------------------------------------------9-11

Copy Card Reader-F1 -------------------------------------------------------------------- 9-11 Copy Card Reader Attachment-C1 ----------------------------------------------------9-11

Check Items when Turning OFF the Power --------------------------------9-12 Installation Outline Drawing ---------------------------------------------------- 9-12 Installation Procedure ------------------------------------------------------------9-12

Assembling the Card Reader -----------------------------------------------------------9-12 Removing the Covers---------------------------------------------------------------------9-14 Installing the Card Reader Kit ----------------------------------------------------------9-16

Registering the Card IDs --------------------------------------------------------9-21

System Upgrade RAM-C1 ------------------------------------------------ 9-22

Checking the Contents ----------------------------------------------------------9-22 Check Items when Turning OFF the Power --------------------------------9-22 Installation Outline Drawing ---------------------------------------------------- 9-22 Installation Procedure ------------------------------------------------------------9-22

Removing the Covers---------------------------------------------------------------------9-22 Before Installing ----------------------------------------------------------------------------9-23 Installing the SO-DIMM ------------------------------------------------------------------9-24

Appendix

Service Tools --------------------------------------------------------------------- II

Special Tools --------------------------------------------------------------------------- II Oils and Solvents --------------------------------------------------------------------- II

General Timing Chart ----------------------------------------------------------III

Basic sequence at printing (A4 single-sided print (2 sheets), cassette) III Basic sequence at printing (A4 double-sided print (1 sheet), cassette) IV

General Circuit Diagram -------------------------------------------------------V

General Circuit Diagram (1/10) ----------------------------------------------------V General Circuit Diagram (2/10) --------------------------------------------------- VI General Circuit Diagram (3/10) -------------------------------------------------- VII General Circuit Diagram (4/10) ------------------------------------------------- VIII General Circuit Diagram (5/10) --------------------------------------------------- IX General Circuit Diagram (6/10) ----------------------------------------------------X General Circuit Diagram (7/10) --------------------------------------------------- XI

General Circuit Diagram (8/10) -------------------------------------------------- XII General Circuit Diagram (9/10) ------------------------------------------------- XIII General Circuit Diagram (10/10) ----------------------------------------------- XIV

List of User Mode ------------------------------------------------------------- XV

Common Settings -------------------------------------------------------------------XV Timer Settings -----------------------------------------------------------------------XV Adjustment/Cleaning -------------------------------------------------------------- XVI Report Settings --------------------------------------------------------------------- XVI Copy Settings ----------------------------------------------------------------------- XVI Communications Settings ------------------------------------------------------- XVII Printer Settings ------------------------------------------------------------------- XVIII

Settings Menu ----------------------------------------------------------------------------- XVIII PCL Settings*1 ---------------------------------------------------------------------------- XVIII PS Settings* -------------------------------------------------------------------------------- XVIII Other Settings ----------------------------------------------------------------------------- XVIII

Address Book Settings -----------------------------------------------------------XIX

Register Address ---------------------------------------------------------------------------- XIX One-touch Buttons --------------------------------------------------------------------------XX

System Management Settings --------------------------------------------------XXI

System Manager Info.Setting ------------------------------------------------------------ XXI Device Info. Settings -----------------------------------------------------------------------XXI Dept. ID Management --------------------------------------------------------------------- XXI User ID Management ----------------------------------------------------------------------XXI Network Settings ---------------------------------------------------------------------------- XXI Communications Settings -------------------------------------------------------------- XXIII Forwarding Settings ---------------------------------------------------------------------- XXIV Store/Print When Forwarding ---------------------------------------------------------- XXIV Remote UI ---------------------------------------------------------------------------------- XXIV Restrict the Send Function ------------------------------------------------------------- XXIV Auto Online/Ofine -----------------------------------------------------------------------XXIV Register LDAP Server --------------------------------------------------------------------XXV Job Log Display ----------------------------------------------------------------------------XXV Memory Media Store Log ----------------------------------------------------------------XXV License Registrastion ---------------------------------------------------------------------XXV USB Device ---------------------------------------------------------------------------------XXV Dept. ID/User Name Display ------------------------------------------------------------XXV PDL Selection (PnP) ----------------------------------------------------------------------XXV Memory Media Settings ------------------------------------------------------------------XXV

Update Firmware --------------------------------------------------------------------------XXV

Volume Control --------------------------------------------------------------------XXV

Backup Data ----------------------------------------------------------------- XXVI

Safety Precautions

CDRH Act

■

Laser Safety

■

Handling of Laser System

■

Turn power switch ON

■

Power Supply

■

Safety of Toner

■

Notes When Handling

■

the Lithium and Ni-MH Batteries Notes Before it Works

■

Serving Points to Note at Cleaning

■

Notes On Assembly/

■

Disassembly

imageRUNNER

1750/1740/1730 Series

0-2

CDRH Act

The Center for Devices and Radiological Health of the US Food and Drug Administration put into force regulations concerning laser products on August 2, 1976. These regulations apply to laser products manufactured on and after August 1, 1976, and the sale of laser products not certied 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 INC.

30-2,SHIMOMARUKO,3-CHOME,OHTA-KU,TOKYO,JAPAN

MANUFACTURED:

THIS PRODUCT CONFORMS WITH DHHS RADIATION PERFORMANCE STANDARD 21CFR CHAPTER 1 SUBCHAPTER J.

F-0-1

This product is certicated as a Class 1 laser product under IEC60825-1:2007.

Handling of Laser System

When servicing the area around the laser assembly, be sure to turn off the main power. The machine's covers that can reect laser light are identied by means of a warning label (Figure). If you must detach a cover showing the label, be sure to take extra caution during the work.

A different description may be used for a different product.

Laser Safety

F-0-2

0-2

0-3

Turn power switch ON

The machine is equipped with 2 power switches: main power switch and control panel power switch. The machine goes on when the main power switch is turned on (i.e., other than in low power mode, sleep mode).

Control Panel

Power Switch

Main Power Switch

F-0-3

Power Supply

1. As a general rule, do not use extension cords. Using an extension cord may result in a re or electrical shock. If an extension cord must be used, however, use one for local rated voltage and over, untie the cord binding, and insert the power plug completely into the extension cord outlet to ensure a rm connection between the power cord and the extension cord.

2. The socket-outlet shall be installed near the equipment and shall be easily accessible.

F-0-4

0-3

0-4

Safety of Toner

About Toner

The machine's toner is a non-toxic material made of plastic, iron, and small amounts of dye.

Do not throw toner into re. It may cause explosion.

Toner on Clothing or Skin

• If your clothing or skin has come into contact with toner, wipe it off with tissue; then, wash it off with water.

• Do not use warm water, which will cause the toner to jell and fuse permanently with the bers of the cloth.

• Tonner is easy to react with plastic material, avoid contact with plastic.

Notes When Handling the Lithium and Ni-MH Batteries

RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.

DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.

The following warnings are given to comply with Safety Principles (EN60950).

Notes Before it Works Serving

At servicing, be sure to turn OFF the power source according to the specied steps and disconnect the power plug.

Points to Note at Cleaning

When performing cleaning using organic solvent such as alcohol, be sure to check that the component of solvent is vaporized completely before assembling.

Notes On Assembly/Disassembly

Follow the items below to assemble/disassemble the device.

1. Disconnect the power plug to avoid any potential dangers during assembling/disassembling works.

2. If not specially instructed, reverse the order of disassembly to reinstall.

3. Ensure to use the right screw type (length, diameter, etc.) at the right position when assembling.

4. To keep electric conduction, binding screws with washers are used to attach the grounding wire and the varistor. Ensure to use the right screw type when assembling.

5. Unless it is specially needed, do not operate the device with some parts removed.

6. Never remove the paint-locked screws when disassembling.

Wenn mit dem falschen Typ ausgewechselt, besteht Explosionsgefahr.

Gebrauchte Batterien gemäß der Anleitung beseitigen.

F-0-5

0-4

Product Overview

Product Lineup

■

Features

■

Specications

■

Parts Name

■

Product Overview

imageRUNNER 1750 / 1740 / 1730

Product Overview > Product Lineup > Option > Pickup/Delivery / Image Reading System Options

1-2

Product Lineup

Host machine

F-1-1

■Host machine conguration

Conguration

Reader+DADF+Printer

T-1-1

■Model type

imageRUNNER 1750 imageRUNNER 1740 imageRUNNER 1730

Print Speed

Underlined (2-digit) numeric figures indicate print speed (ppm: print per minute).

50ppm 40ppm 30ppm

F-1-2

T-1-2

Option

■Pickup/Delivery / Image Reading System Options

[1]

[3]

[6]

[5]

No. Product name Remarks and condition

1 imageRUNNER 1750/1740/1730 2 ADF Access Handle-A1 3 Staple Finisher-H1 4 Cassette Module-Y1 Up to 3 units can be installed 5 FL Cassette-AP1 6 Envelope Cassette-D1 7 Drum Heater-D1

[4]

[2]

[7]

F-1-3

T-1-3

Product Overview > Product Lineup > Option > Pickup/Delivery / Image Reading System Options

1-2

[1]

Product Overview > Product Lineup > Option > Function expansion system options

1-3

■Function expansion system options

[2]

[3]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

No. Product name Remarks and condition

1 Copy Card Reader-F1 Copy Card Reader Attachment-C1 is required. 2 Copy Card Reader Attachment-C1 3 USB Application 3-Port Interface Kit-B1 4 Super G3 Fax Board-AJ1

5 System Upgrade RAM-C1 512MB 6 PCL Printer Kit-AL1 512MB is required for RAM. When using 256MB RAM,

System Upgrade RAM-C1 is required.

7 PS Printer Kit-AL1 512MB is required for RAM. When using 256MB RAM,

System Upgrade RAM-C1 is required. 8 Barcode Printing Kit-B1 PCL Printer Kit-AF1 is required. 9 Color Send Kit-Z1 512MB is required for RAM. When using 256MB RAM,

System Upgrade RAM-C1 is required.

10 Color Send Searchable PDF Kit-E1 512MB is required for RAM. When using 256MB RAM,

System Upgrade RAM-C1 is required.

11 eM Controller-C1, 230V

T-1-4

[4]

Product Overview > Product Lineup > Option > Function expansion system options

F-1-4

1-3

Product Overview > Features > Product Features

1-4

Features

Product Features

Depth: 500mm or less.

• Canon's rst B&W MFP of toner supply-type which accommodates paper up to A4 size Low running cost

• Improved maintainability Fixing Assembly and Drum Unit can be replaced by the user. Replacement time for consumable parts and options by the service technician has been signicantly reduced.

• Performance FCOT: 5 sec. or less Recovery from sleep mode: 10 sec. or less 1W sleep mode

• Installability Depth: 500mm or less.

Fixing Assembly Drum Unit Waste Toner Box

- User replaceable

Low running cost

Toner Cartridge

Canon's first B&W MFP of toner supply-type which accommodates paper up to A4 size

Low running cost

Product Overview > Features > Product Features

Drum Unit

- Highly-durable OPC drum is adopted

Low running cost

F-1-5

1-4

Product Overview > Features > Product Features > Communication test function of E-RDS

1-5

■Secured Print Jobs

Secured Print is the function that a password is provided to the PDL(UFR II and PCL, PS) print job and it is sent to the device. Then, it is rasterized on the device side, saved in the image server and output by entering the password from the device's panel.

F-1-6

●Process at full-memory

• Even in the case of a normal job, print cannot be started until a secure job is processed and a free space is created. A print job can be submitted in both normal/ secure jobs. But, a job enters a stand-by status in the PC’s Windows spool area. Then, after a memory area is ensured on a main body side, the job is held in the main body.

• Print, copy and fax use a same memory area. So until the memory area has a free space, only a copy function of; 1 to N, N to 1, 1-sided/1-sided is available and only a FAX send/ reception function of Direct send is available.

Caution:

• Job is erased by power OFF/ON.

• A secure print job can be submitted to a device up to 100 jobs.

■Service Mode Disable of USB memory function

Invalidating a USB memory function (Print From USB Memory & Scan To USB Memory) is possible in Service Mode. The details refer to "Details of Service Mode".

■Setting “Auto-clear Time” to “short”

Default: 2min. Selectable in 0 (not clearing automatically), 10sec, 20sec, 30sec, 40sec, 50sec, 1min., 2min., 3min. …9min. Less than 1 minute settings are the new function. The details refer to User Guide.

■Arabic support (In Europe only)

Arabic display support in Local UI message (Copy, FAX, Printer, system status, status, user mode) *Remote UI, report print and FEP/character input are not supported.

■Communication test function of E-RDS

F-1-7

●Restrictions

• Encryption secure pint is not supported.

• A device doesn’t enter Sleep when a secure print job is submitted.

• Not collaborated with device authentication. Job selection and password input are necessary even after device authentication.

Product Overview > Features > Product Features > Communication test function of E-RDS

Communication test function of E-RDS is implemented to a counter screen. The details refer to the chapter of E-RDS.

1-5

Product Overview > Specications > Specications

1-6

Specications

Item Specications Copyboard Machine installation method Light source Photosensitive medium Image reading system Copying method Exposure method Charging method Developing method Transfer method Separation method Pickup method

Fixing method Delivery method Magnication ratio Drum cleaning method Toner type Toner supplying method Toner level detection function Leading edge image margin Left edge image margin Leading edge non-image width Left edge non-image width non-image width Warm-up time Image gradations Resolution at reading Resolution at writing First print time Paper type (Cassette)

Paper type (Multi-purpose Tray)

Original stream reading, original xed reading Desktop LED (RGB) OPC CIS Indirect electrostatic method Laser exposure Roller charging Dry, 1-component toner projection development Roller transfer Curvature separation Cassette: Retard separation

Multi-purpose Tray: Pad separation On-demand xing Face-down (inner delivery) 25 to 400% Cleaning Blade Magnetic negative toner Toner Container method Yes

2.5 +/- 1.5mm

2.5 +/- 1.5mm When the Feeder is used: 2.5 +/- 2.0mm 30 sec or less when the power is turned ON 256 gradations 600 x 600dpi 1200 x 1200dpi

5.0 sec or less Plain paper (64 to 90g/m2), Recycled paper (64 to 90g/m2),

Heavy paper (91 to 105g/m2), 3-hole paper, 4-hole paper, *Envelope (No. 10 (COM10), ISO-B5, Monarch, ISO-C5, DL) *Only when the option Cassette Unit-Y1 is installed and the option Envelope Cassette-D1 is installed in the 2nd cassette. Plain paper (64 to 90g/m2), Recycled paper (64 to 90g/m2), Heavy paper (91 to 128g/m2), 3-hole paper, 4-hole paper, Bond paper (90g/m2), Transparency, Label paper, Envelope (No. 10 (COM10), ISO-B5, Monarch, ISO-C5, DL)

Item Specications Paper size (Cassette) Paper size (Multi-purpose Tray)

Pickup capacity

Duplexing method Operation noise

Ozone volume Rated power supply

Maximum power consumption Dimensions (WxDxH)

Weight

A4R, A5R, B5R, LTR-R, LGL, EXEC-R, STMTR-R, 16K-R A4R, A5R, B5R, LTR-R, LGL, EXEC-R, STMTR-R, 16K-R,

Custom size (99 x 140mm to 216 x 356mm), Envelope (No. 10 (COM10), ISO-B5, Monarch, ISO-C5, DL) Cassette: 550 sheets (80g/m2) Multi-purpose Tray: 100 sheets (80g/m2) Through-pass duplex

imageRUNNER 1750/1750i/1750iF: During copy: 75.0dB or smaller *1/During standby: 53.00dB or smaller *2 imageRUNNER 1740/1740i/1740iF: During copy: 73.0dB or smaller *1/During standby: 53.00dB or smaller *2 imageRUNNER 1730/1730i/1730iF: During copy: 69.50dB or smaller/During standby: 43.00dB or smaller *2 *1 Excluding the Chinese models Chinese models: 71.00dB or smaller (During copy) *2 Excluding the Chinese models Chinese models: 45.00dB or smaller (During standby)

1.5mg/h or smaller 120 - 127 V AC, 50/60 Hz, 10.0 A

220 - 240 V AC, 50/60 Hz, 5.0 A 120 to 127 V model approx. 1283.4 W 220 to 240 V model approx. 1234.0 W

560mm x 500mm x 633mm 560mm x 500mm x 983mm with the 3 cassette

Approx. 43.3kg

T-1-5

Product Overview > Specications > Specications

1-6

Product Overview > Specications > Paper type > Pickup

1-7

Weight and Size

Product name

imageRUNNER 1750/1750i/1740/1740i /1730/1730i imageRUNNER 1750iF/1740iF/1730iF (with FAX) Staple Finisher-H1 Cassette Module-Y1 Copy Card Reader-F1

Productivity (Print speed)

Paper

Size Mode

A4-R 1-sided

2-sided

LTR-R 1-sided

2-sided

A5-R / STMT-R

1-sided

2-sided

Paper

type

Plain paper Heavy paper

basis weight (g/m2)

91-105 45 40 40 40 30 30

106-128 - 21 - 21 - 21

91-105 44 39 39 39 29 29

106-128 - - - - - -

91-105 45 40 42 40 32 30

106-128 - 21 - 21 - 21

91-105 42 37 39 37 30 28

106-128 - - - - - -

91-105 25 25 25 25 25 25

106-128 - 17 - 17 - 17

91-105 22 22 22 22 22 22

106-128 - - - - - -

Cassette

64-90 50 40 40 40 30 30

64-90 49 39 39 39 29 29

64-90 52 40 42 40 32 30

64-90 48 37 39 37 30 28

64-90 25 25 25 25 25 25

64-90 22 22 22 22 22 22

Width

(mm)

560 500 633 44.3

560 500 633 45.1

798 395 263 10.5 540 500 158 7.7

1750 1740 1730

Depth

(mm)

96 88 40 0.2

Multi-

purpose

Tray

Height

(mm)

imageRUNNER

Multi-

Cassette

purpose

Tray

Weight

Approx. (kg)

Cassette

T-1-6

Multi-

purpose

Tray

T-1-7

Paper type

See the table below for custom paper size..

Type Feeding direction (mm) Width direction (mm)

Custom size 140 to 356 99 to 216

■Pickup

Available paper types

Paper type

(g/m2)

- Plain paper (64 to 90)

- Color paper (64 to 90)

- Recycled paper (64 to 90)

- Heavy paper (91 to 105)

- Heavy paper (106 to 128)

- Bond paper (75 to 90)

- Label paper A4R, LTR-R

- Transparency A4R, LTR-R

- Envelope No.10 (COM10),

- Custom size paper

Size

A4R, A5R, B5R, LGL, LTR-R, STMTR, EXEC-R, 16K-R

ISO-B5, Monarch, ISO-C5, DL 99 mm x 140 mm to 216 mm x 356 mm

Multi-

purpose

Tray

Yes Yes No Yes Yes Yes

Yes No No No No No

Yes No No No No No Yes No No No No No

Yes No Yes No No No

Yes No No No No No

Cassette

Cassette 2

With

Envelope

Feeder

Without

Envelope

Feeder

T-1-8

Cassette 3Cassette

T-1-9

Product Overview > Specications > Paper type > Pickup

1-7

[5]

Product Overview > Parts Name > External View

Parts Name

External View

Front view, Left side

[2]

[3]

1-8

[4]

[6]

[7]

[8]

[9]

[1]

[14]

[13]

[1] ADF Left Cover [8] ADF Front Lower Cover [2] ADF Rear Cover [9] Reader Front Cover [3] ADF Upper Cover [10] Control Panel Unit [4] Side Guides [11] Front Cover [5] Original Feed Tray [12] Cassette [6] ADF Front Upper Cover [13] Left Cover [7] Original Delivery Tray [14] Reader Left Cover

[10]

[11]

[12]

F-1-8

Product Overview > Parts Name > External View

1-8

Product Overview > Parts Name > External View

1-9

Rear view, Right side

[10]

[9]

[8]

[7]

[6]

[1] Reader Rear Cover [7] Right Door Unit [2] Reader Controller Cover [8] Right Rear Fan Cover [3] Rear Cover [9] Right Front Fan Cover [4] Right Rear Cover [10] Support Column Cover [5] Multi-purpose Tray Pickup Unit [11] Reader Right Front Cover [6] Right Front Cover [12] Reader Right Rear Cover

[11]

[5]

[12]

[4]

[3]

[1]

[2]

F-1-9

Delivery Assembly

[5]

[4]

[3]

[6]

[1] Reader Bottom Cover [2] Delivery Inner Cover [3] Delivery Outer Cover [4] Delivery Stopper [5] Inner Rear Cover [6] Reverse Tray

[1]

[2]

F-1-10

Product Overview > Parts Name > External View

1-9

[10]

[1]

[2]

[3] [4]

[5]

[6] [7] [8]

[9]

Product Overview > Parts Name > Cross Sectional View

1-10

Cross Sectional View

[36]

[35]

[34]

[33]

[32]

[31]

[11]

[12]

[13]

[14]

[15]

[16]

[17]

[18]

[19]

[20]

[1] Lead Roller 1 [19] Transfer Roller [2] Registration Roller [20] Duplex Feed Roller 2 [3] Lead Roller 2 [21] Registration Roller [4] ADF Feed Roller [22] Multi-purpose Tray Pullout Roller [5] ADF Delivery Reverse Roller [23] Multi-purpose Tray Pickup Roller [6] ADF Pickup Roller [24] Multi-purpose Tray Separation Pad [7] ADF Separation Pad [25] Vertical Path Roller [8] ADF Delivery Roller [26] Separation Roller (Cassette)

[9] ADF Reverse Roller [27] Feed Roller (Cassette) [10] Drum Unit [28] Pickup Roller (Cassette) [11] Reverse Roller [29] Primary Charging Roller [12] Expansion Delivery Kit [30] Developing Assembly [13] Delivery Roller [31] Laser Scanner Unit [14] Fixing Outlet Roller [32] Toner Container [15] Duplex Feed Roller 1 [33] Hopper [16] Pressure Roller [34] Copyboard Glass [17] Fixing Film Unit [35] CIS Unit [18] Photosensitive Drum [36] ADF Reading Glass

[30]

Product Overview > Parts Name > Cross Sectional View

[29]

[28]

[27]

[26]

[21]

[22]

[23]

[24]

[25]

F-1-11

1-10

[1] [2] [3] [4] [5]

Product Overview > Parts Name > Operation > Description of Control Panel

1-11

Operation

■Power Switch

●Types of Power Switches

Control Panel

Power Switch

Main Power Switch

This machine has the Main Power Switch and the Control Panel Power Switch.

[1] Main Power Switch

This switch is used to turn OFF / ON the power of host machine.

[2] Control Panel Power Switch

This switch is used to enter the energy saver mode or recover to the normal mode.

●Points to Note on Turning ON/OFF the Power Switch

- Be sure to turn OFF the main power switch when turning OFF the power. (The conventional shut-down sequence process is not needed.)

- After turning OFF the power (after turning OFF the Main Power Switch), do not turn ON the main power switch again unless the screen disappears.

- Do not turn OFF the power during downloading

F-1-12

■Description of Control Panel

●Control Panel

[6]

[7]

[8]

[9]

[10] [11]

[12][13][14][15]

F-1-13

[1] Copy Key [9] Numeric Key [2] Send Key [10] Clear Key [3] Remote Scanner/Expansion Key [11] ID (Authentication) Key [4] Initial Settings/Registration Key [12] Stop Key [5] Control Panel Power Switch [13] Start Key [6] Screen Contrast Dial [14] Reset Key [7] Volume Adjustment Key [15] Touch Panel Display [8] Counter Check Key

Product Overview > Parts Name > Operation > Description of Control Panel

1-11

Product Overview > Parts Name > Operation > Description of Control Panel

●Main Menu

Functions Key Location

Copy Copy Key

Control PanelSend*1 or FAX*2 Send Key Scan or Direct Print Scan/Option Key System Monitor [System Monitor] Touch Panel Display

*1 To enable SEND function, Simple Send Expansion Kit-Y1 is required .

*2 To enable FAX function, Super G3 Fax Board-AG1 is required..

●Settings/Registration Menu

[1] Common Settings [6] Copy Settings [2] Timer Settings [7] Communications Settings [3] Adjustment/Cleaning [8] Printer Settings [4] Report output [9] Address Book Settings [5] System Manager Settings

1-12

T-1-10

Product Overview > Parts Name > Operation > Description of Control Panel

1-12

Technical Explanation

Basic Conguration

■

Original Exposure and Feed System

■

Main Controller

■

Laser Exposure System

■

Image Formation System

■

Fixing System

■

Pickup Feed System

■

External Auxiliary System

■

Embedded RDS

■

Technical Explanation

Technical Explanation > Basic Conguration > Functional Conguration > Basic sequence

Basic Conguration

2-2

■Basic sequence

Functional Conguration

This machine consists of 6 major blocks: Original Exposure System, Controller System, Laser Exposure System, Image Formation System, Fixing System, and Pickup/Delivery System.

Document Exposure System

Controller System

Option

Board

Flow of Paper Flow of Signal Laser beam

Main

Controller

Reader

Controller PCB

Laser Exposure System

Laser Scanner Unit

Cassette

CIS

Delivery

Fixing System

Image Formation System

LED

Duplexing

Feed

Fixing

Transfer

Pickup

Pickup/Feed System

●Sequence at Power-On

• Reader

Main power switch

Shading position

STBY

Scanner motor LED CIS HP sensor

Backwarding

Shading position

SREADY

Forwarding

●Print sequence

• Reader (in book mode, 1-sheet original)

Black shading/White shading

ForwardingBackwarding

Light-ON

ON ON

Leading edge

of original

Scanner motor LED CIS HP sensor

Start key

Shading position

Trailing edge

of original

SCRWSCFWSTBY STBY

Backwarding

Forwarding

Shading position

F-2-2

F-2-3

Technical Explanation > Basic Conguration > Functional Conguration > Basic sequence

F-2-1

2-2

Technical Explanation > Original Exposure and Feed System > Construction > Specications/controls/functions

2-3

Original Exposure and Feed System

Construction

■Specications/controls/functions

The major specications, controls and functions of the original exposure and feed system are described below.

Item Specication/function

Original exposure LED Original scan In book mode Original scan is performed by moving the contact image sensor

(CIS).

In ADF mode Original stream reading is performed with the contact image

sensor (CIS) xed.

Read resolution B/W: 600 dpi (main scanning) x 600 dpi (sub scanning)

(Color SEND: 300 dpi (main scanning) x 600 dpi (sub scanning)) Gradation 256 gradation Carriage position detection CIS HP sensor (PS24) Magnication 25% to 400%

Main scanning direction Sub scanning

direction Lens Rod lens array Original reading sensor Number of lens: 1

CIS drive control Drive control by Reader motor (M10) Original size detection

ADF original pickup method Auto pickup/delivery method ADF setting direction of original Original tray pickup: face-up stacking ADF setting position of original Original tray pickup: center reference ADF separation method of original Upper separation by separation pad ADF scanning method of original Stream reading ADF weight of original

In book mode Main scanning direction: by reection sensor (AB/Inch)

In ADF mode Main scanning direction: by photo interrupter on ADF

1-sided AB: 42 to 128 g/m2

2-sided 50 to 128 g/m2

Color original 64 to 128 g/m2

B/W or Color

mixed original

Original longer

than 432mm

Image is processed on main controller PCB.

Number of pixels: Total 5148 (incl. 5104 effective pixels) Maximum original scan width: 216mm

Sub scanning direction: by reection sensor (AB/Inch)

Sub scanning direction: by photo interrupter on ADF

Inch: 50 to 128 g/m2

50 to 128 g/m2 (Color: 64 to 128 g/m2)

60 to 90 g/m2 (1-sided, 1-sheet feeding)

Item Specication/function

ADF original size A4R, B5R, A5, A5R, LGL, LTRR, STMTR, STMT, 16K-R (For

STMT, horizontal scanning only) Original width direction: 139.7 to 219 mm Original feed direction: 128 to 356 mm (In banner paper printing

mode: maximum 630 mm) ADF original tray capacity 100 sheets (80 g/m2 paper, original height: 10mm or less) ADF original processing mode 1-sided original processing

2-sided original processing ADF original size detection function ADF mixed original mode function

Book original Yes (The thickness of the book original must not exceed 30

ADF done stamp function No

Mix of same conguration mode Mix of different conguration mode

Yes (standard size)

Yes (weight of original same as continuous feed mode)

Assured combination for mix with same conguration

A5/A4R, STMT/LTRR/LGL

mm.)

T-2-1

Technical Explanation > Original Exposure and Feed System > Construction > Specications/controls/functions

2-3

Technical Explanation > Original Exposure and Feed System > Construction > Major Components

2-4

■Major Components

●Reader Unit

Following shows major components of reader unit.

Reader motor (M10)

Reader controller PCB (PCB3)

ADF open/closed

detection sensor (PS23)

CIS HP sensor (PS24)

Contact image sensor (CIS)

Item Notation Specication/function

Reader motor M10 Stepping motor: controls the carriage drive. CIS HP sensor PS24 Photo interrupter: detects the home position of CIS

unit. ADF open/closed detection sensor

Original size detection sensor 1 PS22 Detects the original size. (AB/Inch) Original size detection sensor 2 PS21 Detects the original size. (AB/Inch) Contact image sensor - Reads the original. (LED + Light guide + CIS unit) Reader controller PCB PCB3 Controls the reader unit and ADF unit.

PS23 Photo interrupter: detects the opening or closing of

ADF. (detects the opening or closing of the ADF at

approximate 18 degrees.)

Original size detection

sensor 1 (PS22)

Original size detection

sensor 2 (PS21)

F-2-4

T-2-2

●ADF unit

Following shows major components of ADF unit.

1) Cross Section

Delivery reversal roller (upper)

Delivery reversal flapper 2

Delivery roller

Reversal roller

Original pickup tray

Original delivery tray

Lead roller 2

Registration roller

Lead roller 1

Platen guide

Feed roller

Separation pad

Delivery reversal flapper 1

Pickup roller

Delivery reversal roller

Item Specication/function

Pickup roller Picks up the original. Feed roller Separates and feeds the original. Separation pad Separates the original. Registration roller Feeds the original and forms a skew feed correction loop. Lead roller 1 Feeds the original before reading. Lead roller 2 Feeds the original after reading. Delivery reversal roller Delivers the original and performs upstream reversal feed of

the original.

Delivery reversal roller (upper) Separated from the mating delivery reversal roller by the roller

release solenoid during reverse feed of the original. Delivery roller Delivers the original. Reversal roller Performs downstream reversal feed of the original. Platen guide Original read section. Delivery reversal apper 1 Switches between the upstream reversal path and the

downstream reversal path. Delivery reversal apper 2 Switches between the upstream reversal path and the delivery

path. Original pickup tray Allows you to load an original. Original delivery tray Stacks the delivered originals.

F-2-5

T-2-3

Technical Explanation > Original Exposure and Feed System > Construction > Major Components

2-4

Technical Explanation > Original Exposure and Feed System > Construction > Major Components

2) Sensor Layout

PS26

PS25

PS29

PS27

3) Drive Conguration

M11

SL4

M12

PS30

SL5

PS28

SL8

PS31

PS32

F-2-6

Item Notation Specication/function

Feed motor M11 Stepping motor: Feeds the original. Delivery reversal motor M12 Stepping motor: Feeds, reverses, and delivers the

original.

Registration solenoid SL4 Transmits the driving force of the feed motor to the

registration roller.

Pickup solenoid SL5 Transmits the driving force of the delivery reversal

motor to the pickup roller and feed roller. Flapper solenoid 2 SL6 Drives the delivery reversal apper 2. Flapper solenoid 1 SL7 Drives the delivery reversal apper 1. Roller release solenoid SL8 Separates the delivery reversal roller from the mating

delivery reversal roller during upstream reversal feed

of the original. Lead sensor PS25 Photo interrupter: Detects the original read timing. Registration sensor PS26 Photo interrupter: Detects the original leading edge

looping timing. Stay sensor PS27 Photo interrupter: Detects the original reversal timing

during downstream reversal feed. Reversal sensor PS28 Photo interrupter: Detects the original feed during

downstream reversal feed. Timing sensor PS29 Photo interrupter: Detects feed of the original. Original set sensor PS30 Photo interrupter: Detects presence/absence of the

original on the original pickup tray. Original width detection sensor Original length detection sensor

PS31 Photo interrupter: Detects the width of the original on

the original pickup tray.

PS32 Photo interrupter: Detects the length of the original on

the original pickup tray.

T-2-4

2-5

SL7

Technical Explanation > Original Exposure and Feed System > Construction > Major Components

SL6

F-2-7

2-5

Technical Explanation > Original Exposure and Feed System > Construction > Reader Controller PCB

■Reader Controller PCB

The function conguration of reader controller PCB is described below.

2-6

J907

J911

Notation Description

IC1 Image processing, control of contact image sensor, control of motors and

solenoids drive, control of sensors detection J902 Connector for contact image sensor J903 Connector for power supply from host machine (power supply unit) J904 Connector for original size detection sensor 1 and 2 J905 Connector for reader motor J906 Connector for feed motor and delivery reversal motor of ADF J907 Connector for communication with main controller PCB of host machine J908 Connector for registration solenoid and pickup solenoid and apper

solenoid 1 and 2 J909 Connector for timing sensor and original set sensor and original width

detection sensor and original length detection sensor J910 Connector for lead sensor and registration sensor and stay sensor and

reversal sensor

J911 Connector for CIS HP sensor and ADF open/closed detection sensor

J912 Connector for roller release solenoid

J909

J910 J903 J908 J912

IC1

J906

J905

J904J902

F-2-8

T-2-5

Technical Explanation > Original Exposure and Feed System > Construction > Reader Controller PCB

2-6

Technical Explanation > Original Exposure and Feed System > Basic Operation > Basic Sequence

2-7

Basic Operation

■Basic Sequence

●Basic Sequence at Power-On

Main power switch

Reader motor (M10)

LED

CIS HP sensor (PS24)

1. CIS position check

SREADY STBY

Shading

position

CIS HP sensor

Shading

position

Shading position

Leading edge

of original

:Forward :Reverse

F-2-9

●Basic Sequence at Start Key ON (Book mode/1 original)

Start key

Reader motor (M10)

LED

CIS HP sensor (PS24)

Shading position

Copyboard glass reading

start position

1. Moves to the start position after black shading and white shading

2. Original scan

3. Moves to the standby position

Black shading and White shading

Leading edge

of original

CIS HP sensor

Trailing edge

Shading

position

SCRWSCFWSTBY STBY

of original

Leading edge

of original

Shading

position

:Forward :Reverse

F-2-11

Trailing edge

of original

F-2-10

Technical Explanation > Original Exposure and Feed System > Basic Operation > Basic Sequence

F-2-12

2-7

Technical Explanation > Original Exposure and Feed System > Basic Operation > ADF Operation Mode

2-8

●Basic Sequence at Start Key ON (ADF mode/1 original)

Start key

Reader motor (M10)

LED

CIS HP sensor (PS24)

Shading

position

Stream reading

start position

1. Black shading and White shading and Original scan

Black shading and White shading

Stream reading

position

Copyboard glass

reading start

position

Trailing edge

of original

CIS HP sensor

SCFWSCRWSTBY STBY

Shading position

Shading

position

:Forward :Reverse

F-2-13

■ADF Operation Mode

ADF has four operation modes. Operation mode names and outline of operations and associated print modes are given in the following table:

Operation mode name Outline of operation Associated print mode

Forward pickup/delivery Picks up, reads, and then delivers

an original.

Forward pickup/reversal delivery

Picks up, reads, and then reverses and delivers an original

Single-sided original → Singlesided print Single-sided original → Doublesided print Double-sided original → Double-sided print Double-sided original → Singlesided print

T-2-6

F-2-14

Technical Explanation > Original Exposure and Feed System > Basic Operation > ADF Operation Mode

2-8

Technical Explanation > Original Exposure and Feed System > Basic Operation > ADF Operation Mode

2-9

●Forward Pickup/Delivery (Single-sided original → Single-sided print) Operation

The original ows as shown below.

Note:

This operation is performed for all single-sided originals irrespective of whether original width are the same or different.

• Operation of single-sided original reading (2 originals)

- 1st original: Pickup

- 1st original: Delivery

- 2nd original: Reading

●Forward Pickup/Reversal Delivery (Double-sided original → Doublesided print) Operation

The original ows as shown below.

Note:

This operation is performed for all single-sided originals irrespective of whether original width are the same or different.

• Operation of double-sided original reading (2 originals)

- 1st original: Pickup

- 1st original: Reversal and Formation of loop

- 1st original: Formation of loop

- 1st original: Reading

- 2nd original: Pickup and Formation of loop

Technical Explanation > Original Exposure and Feed System > Basic Operation > ADF Operation Mode

- 2nd original: Delivery

- End of job

F-2-15

- 1st original: Reading of reverse side

- 2nd original: Pickup

- 1st original: Reading

- 1st original: Feeding to downstream reversal path

- 2nd original: Formation of loop

- 1st original: Feeding to upstream reversal path

F-2-16

2-9

Technical Explanation > Original Exposure and Feed System > Basic Operation > ADF Operation Mode

2-10

- 1st original: Reversal

- 2nd original: Reading

- 1st original: Delivery

- 2nd original: Feeding to upstream reversal path

- 2nd original: Reversal and Formation of loop

- 2nd original: Reading of reverse side

- 2nd original: Feeding to downstream reversal path

- 2nd original: Delivery

- End of job

F-2-17

Technical Explanation > Original Exposure and Feed System > Basic Operation > ADF Operation Mode

2-10

Technical Explanation > Original Exposure and Feed System > Controls > Controlling the Scanner Drive System

2-11

Controls

■Controlling the Scanner Drive System

●Overview

Parts conguration of scanner drive is described below.

Reader motor (M10)

Reader controller PCB (PCB3)

ADF open/closed

detection sensor (PS23)

Sensor light-blocking plate

Reverse

Carriage drive belt

Forward

●Reader Motor Control

Reader motor driver (IC15) turns on/off the reader motor (M10) and controls its direction and speed of rotation according to the signals from ASIC (IC1).

Reader controller PCB

3.3V +24V

1.8V

OM_RTPA OM_RTPAN

IC1

ASIC

Note:

The scan speed is 160 mm/sec.

OM_RTPB OM_RTPBN OM_PS OM_CURRENT

+5V

IC15 Motor driver

J905

1 2 3 4

B* B A A*

M10

F-2-19

CIS HP sensor (PS24)

Contact image sensor (CIS)

Carriage rail

• Reader motor (M10) drive signal Controls the rotation and its direction and speed of motor.

• CIS HP sensor (PS24) Detects that the contact image sensor (CIS) is at the home position.

• ADF open/closed detection sensor (PS23) Detects the open or close status of the ADF.

Technical Explanation > Original Exposure and Feed System > Controls > Controlling the Scanner Drive System

Carriage

F-2-18

2-11

Technical Explanation > Original Exposure and Feed System > Controls > Contact Image Sensor (CIS)

2-12

1) Forward Movement during Image Scan During image scanning, the reader controller PCB controls the reader motor (M10) to control the contact image sensor (CIS) operation.

Start

position

Acceleration

Movement

speed

[1] Acceleration area: The motor accelerates to the speed specified for each mode. [2] Runup area: A margin to stabilize the speed. [3] Image read area: The image is read at a constant speed. [4] Deceleration area: Upon detection of the trailing edge, the motor decelerates rapidly and stops.

2) Backward Movement after Image Scan After image scan, the carriage moves back to the contact image sensor (CIS) shading position at the constant speed (160 mm/sec).

Leading edge

of original

Constant speed

[1] [2] [3] [4]

Movement distance

Trailing edge

of original

Deceleration

Stop

F-2-20

■Contact Image Sensor (CIS)

●Outline

The original is exposed to light and read using the contact image sensor (CIS) to read the image on a line-by-line basis.

Image reading line

Copyboard glass

Rod lens array

LED (R/G/B)

Original reading

sensor array

Light guide

Scan direction

Rod lens array

Light guide

LED (R/G/B)

Technical Explanation > Original Exposure and Feed System > Controls > Contact Image Sensor (CIS)

LED

CCD

F-2-21

Component Function

LED Illuminates the original. Light guide Illuminates the entire image line with the LED light. Rod lens array Collects the light reected by the original. Original reading sensor array Receives the light that passed through the rod lens array.

T-2-7

2-12

Technical Explanation > Original Exposure and Feed System > Controls > Enlargement / Reduction

2-13

●Analog Control Performed by the CIS

The ow of analog image processing performed by the contact image sensor (CIS) is as follows:

a. The light reected by the original is collected by the rod lens array. b. The light is received by the original scan sensor array. c. The original scan sensor array converts the received light to an electric signal and outputs

it.

The original scan sensor array consists of eleven channels (units). Each channel is provided with an output correction table to output an image signal after performing gain correction for the input brightness signal.

5148 pixels

Original scan sensor channel x11

468 pixels

Driver circuit

3 2 1

■Enlargement / Reduction

●Magnication Change in Main Scanning Direction

In book mode or ADF mode

In the main scanning direction, image is read at 100%; thereafter, the data is subjected to processing by the main controller PCB to suit the selected reproduction ratio.

●Magnication Change in Sub Scanning Direction

The magnication in sub scanning direction is changed as follows:

1) In book mode Image is read at original scan speed kept at 160 mm/sec; thereafter, the data is subjected to processing by the main controller PCB to suit the selected reproduction ratio.

2) In ADF mode Image is read at original scan feeding speed kept at 320 mm/sec; thereafter, the data is subjected to processing by the main controller PCB to suit the selected reproduction ratio.

F-2-22

Technical Explanation > Original Exposure and Feed System > Controls > Enlargement / Reduction

2-13

Technical Explanation > Original Exposure and Feed System > Controls > Original Size Detection by Original Size Detection Sensors

2-14

■Original Size Detection by Original Size Detection Sensors

●Overview

Presence or absence of an original on the copyboard glass is detected as follows according to the combination of the output levels of reective photo sensors:

• Absence of original: The level of the reected light from the reective photo sensor, which is detected when the ADF is open, changes when the ADF is closed.

• Presence of original: The level of the reected light from the reective photo sensor, which is detected when the ADF is open, does not change when the ADF is closed.

Sensor mounting locations are shown below.

• Main and sub scanning direction: Reective photo sensor (2 locations)

Sub scanning direction

Upper left corner of original

Main scanning

direction

STMTR

A5R

Size plate

A4R

LTRR/LGL

Size plate

●Outline of Original Size Detection

When the ADF is closed at 18 degrees, the ADF open/closed detection sensor (PS23) turns on. The output levels of the original size detection sensor 1 (PS22) and original size detection sensor 2 (PS21) are read for 2 seconds after the ADF open/closed detection sensor (PS23) turns on or until the Start key is pressed. If the output levels change, the machine judges that no original is present. If they do not change, the machine judges that an original is present.

1) ADF opens (ADF open/closed detection sensor (PS23): OFF)

Original size detection sensor 1 (PS22)/Original size detection sensor 2 (PS21): OFF

ADF

PS23: OFF

2) ADF is closed to an angle of approximate 18 degrees. (ADF open/closed detection sensor (PS23): ON)

Original size detection sensor 1 (PS22)/Original size detection sensor 2 (PS21): ON or

OFF

ADF

Original

F-2-24

Original size detection sensor 1 (PS22)

Technical Explanation > Original Exposure and Feed System > Controls > Original Size Detection by Original Size Detection Sensors

Original size detection sensor 2 (PS21)

F-2-23

PS23: ON

Original size detection sensor 1 (PS22)

Approx. 18°

Original

Original size detection sensor 2 (PS21)

F-2-25

2-14

Technical Explanation > Original Exposure and Feed System > Controls > Original Size Detection by Original Size Detection Sensors

2-15

3) ADF is closed. (ADF open/closed detection sensor (PS23): ON)

Original size detection sensor 1 (PS22)/Original size detection sensor 2 (PS21): ON

ADF

PS23: ON

Original size detection sensor 1 (PS22): No change in level

• Note that a wrong original size may be identied because the sensor output level does not change in the following cases:

• When the black original

• When the original is a book (its thickness does not allow the ADF to close fully, making it difcult to detect the sensor level change.)

• When the ADF is not closed fully (the sensor level change is not detected after lapse of the above time-out time (2 seconds).)

Original

Original size detection sensor 2 (PS21): Change in level

F-2-26

Original sizes are detected as follows according to the combination of sensor output levels:

●AB size

Original

size

A5R or undefined size

A4R

●Inch size

Original

size

STMTR or undefined size

LTRR

LGL

Original size

detection sensor 1

(PS22)

Original size

detection sensor 1

(PS22)

Original size

detection sensor 2

(PS21)

Original size

detection sensor 2

(PS21)

:No changed :Changed

F-2-27

Technical Explanation > Original Exposure and Feed System > Controls > Original Size Detection by Original Size Detection Sensors

2-15

Technical Explanation > Original Exposure and Feed System > Controls > Dust Detection Control

2-16

Related Service Mode:

• Select the following service mode to determine whether to detect the original size:

SCAN > READER > OPTION > USER > SIZE-DET

0: The original size is not detected.

1: The original size is detected.

• Select the following service mode to switch between AB and inch sizes:

SCAN > READER > OPTION > BODY > SENS-CNF

0: AB size

1: Inch size

• When both the original size detection sensor 1 (PS22) and the original size detection sensor 2 (PS21) detect no original (sensor output levels do not change), select the following service mode to change the original size to be detected:

SCAN > READER > OPTION > BODY > UNK-A5R

0: Undened size

1: A5R or STMTR

■Dust Detection Control

●Overview

In ADF mode, the machine changes the original read position or corrects the read image depending on the presence/absence of dust on the ADF reading glass or platen guide, thus preventing dust from showing up in the image.

The control of dust detection is as follows:

1) Dust detection preventive process

2) Dust detection correction control

Technical Explanation > Original Exposure and Feed System > Controls > Dust Detection Control

2-16

Technical Explanation > Original Exposure and Feed System > Controls > Dust Detection Preventive Process

■Dust Detection Preventive Process

The contact image sensor (CIS) detects the reected light from the ADF reading glass and platen guide surface (at the read position) to judge presence or absence of dust. This process is performed when the power is turned on or each time a job is completed. The dust detection process is performed at three positions (A, B, and C) as follows regardless of whether there is dust:

1) The dust detection process is performed at position A.

2) The dust detection position moves to position B to perform the dust detection process there.

3) The dust detection position moves to position C to perform the dust detection process there.

4-a) The dust-free position is determined as the original read position in the order of priority (A

> B > C).

4-b) If dust is detected at all of positions A, B, and C, position A is determined as the original

read position.

ADF reading glass

A B C

Lens

2-17

0.5mm0.5mm

Platen guide

Contact image sensor unit

F-2-28

Technical Explanation > Original Exposure and Feed System > Controls > Dust Detection Preventive Process

Position Description

A Reference position for read B About 0.5 mm to the right of the reference position A C About 1.0 mm to the right of the reference position A

T-2-8

Note:

When dust has been detected at all of positions A, B, and C, setting an original on the ADF will show a message that prompts the user to clean the glass surface.

2-17

Technical Explanation > Original Exposure and Feed System > Controls > Image Processing

2-18

■Dust Detection Correction Control

Whenever the original from the ADF is read, presence or absence of duct is detected at the original read position determined in the dust detection preventive process. If presence of dust is detected, the image correction process is performed to prevent dust from appearing in the output image.

Main power

switch ON

Start key ON

STBYWMUPR

Dust detection correction control

1st SCAN

Dust detection correction control

2nd SCAN

Dust detection correction control

F-2-29

■Image Processing

●Overview

Major specications and functions of the image processing system are as follows:

• Original reading sensor array Number of lines: 1 Number of pixels: Total 5148 (incl. 5104 effective pixels)

• Shading correction Shading correction: Performed for each job. Shading adjustment: Performed in the Service mode.

Contact image

sensor (CIS)

Original reading

sensor

About image processing, the function of the reader controller PCB is as follows:

• Original reading sensor drive

• Original reading sensor output gain correction and offset correction

• Original reading sensor output A/D conversion

• Shading correction

• LED intensity adjustment

Analog image processor Digital image processor

Analog

image

processing

Reader controller PCB

A/D

conversion

Shading

processing

controller

Main

PCB

F-2-30

Technical Explanation > Original Exposure and Feed System > Controls > Image Processing

2-18

Technical Explanation > Original Exposure and Feed System > Controls > Image Processing

2-19

●Original Reading Sensor Drive

The original reading sensor is a 1-line linear image sensor consisting of 5147 photocells. After completion of photoelectric conversion in the lightreceiving block, the signals are output to the reader controller PCB in parallel for each channel (total eleven channels) of the original reading sensor array.

Original reading sensor 11

Light receiving block

Original reading senor 10

HL L HH L HL H H L

Original reading sensor 1

output

………

F-2-31

●Original Reading Sensor Output Gain Correction and Offset Correction

The analog video signals output from the original reading sensor are corrected so that they will have a specic gain level (gain correction), and the output voltages generated in the absense of incident light are also corrected so that they will have a specic offset level (offset correction).

●Outline of Shading Correction

The original reading sensor outputs are necessary even for the following reasons even when the density of the original is uniform:

(1) Variation in sensitivity among original reading sensor pixels

(2) Variation in light intensity of rod lens array

The machine performs shading correction to even out the original reading sensor output. There are two types of shading correction: shading adjustment performed in the service mode and shading correction performed for each job.

●Shading Adjustment

The machine measures the density of the standard white plate, and stores the measured density data. It then processes the stored data to use it as the target value for shading correction.

●Shading Correction

The machine performs shading correction for each scan. It measures the density of the standard white plate, and compares the measured value with the target value stored in the shading correction circuit to use the difference between the two as the shading correction value. The machine uses this shading correction value to correct the variation among the original reading sensor pixels when scanning the originals, thus evening out the image density level.

Original reading sensor output

Target value

Characteristics after correction

Characteristics before correction

●Original Reading Sensor Output A/D Conversion

After completion of the gain correction and offset correction, the analog video signals are converted to digital signals corresponding to individual pixel voltage levels by the A/D

converter.

Technical Explanation > Original Exposure and Feed System > Controls > Image Processing

Measurement value

Standard white plate

White

Original density

F-2-32

2-19

Technical Explanation > Original Exposure and Feed System > Control of ADF > Original Size Detection by ADF

2-20

●LED Intensity Adjustment

The machine adjusts the length of time during which the LED turns on for each scan so that the image scan level of the original reading sensor will be specic level.

Related Service Mode:

• CIS gain and offset correction

SCAN > READER > FUNCTION > CCD > CCD-ADJ

• DF white level adjustment

SCAN > READER > FUNCTION > CCD > DF-WLVL1 (Original glass scan)

SCAN > READER > FUNCTION > CCD > DF-WLVL2 (Stream reading scan)

SCAN > READER > FUNCTION > CCD > DF-WLVL3 (Original glass scan)

SCAN > READER > FUNCTION > CCD > DF-WLVL4 (Stream reading scan)

Control of ADF

■Original Size Detection by ADF

The size of the original set on the ADF is detected by the following two methods:

1) Initial detection of document size

2) Final detection of document size

Original length detection sensor (PS32)

Original width detection sensor (PS31)

Feeding direction

Technical Explanation > Original Exposure and Feed System > Control of ADF > Original Size Detection by ADF

Lead sensor (PS25)

Original

F-2-33

2-20

Technical Explanation > Original Exposure and Feed System > Control of ADF > Original Size Detection by ADF

2-21

●Initial Detection of Original Size

The length (feed-directional size) of the original set in the original pickup tray is detected by the original length detection sensor (PS32), and its width (cross-directional size) is detected by the original width detection sensor (PS31). The original size is judged as follows according to the combination of the states of these two sensors:

• AB size

Original size

A4R ON OFF A5R or undened size OFF OFF

• Inch size

Original size

LGL ON ON LTRR ON OFF STMTR or undened size OFF OFF LGL OFF ON

When both the original width detection sensor (PS31) and the original length detection sensor (PS32) detect no original, select the following service mode to change the original size to be detected:

• SCAN > FEEDER > OPTION > UNK-A5R <Setting value> 0: Undened size 1: A5R or STMTR

Original width detection sensor

(PS31)

Original width detection sensor

(PS31)

Original length detection sensor

(PS32)

T-2-9

Original length detection sensor

(PS32)

T-2-10

Related Service Mode:

• Select the following service mode to switch between AB and inch sizes of the original fed by the ADF:

SCAN > SW > 005 > Bit 1 and Bit 2

Size setting Bit 1 Bit 2

AB size Inch size

1 0 0 1

T-2-11

●Final Detection of Original Size

The original length is judged by the distance the original runs from the moment the lead sensor (PS25) turns on (the leading edge of the original is detected) to the moment it turns off (the trailing edge of the original is detected). The original size is nally determined according to the width detected by the original width detection sensor (PS31) and the length detected by the lead sensor (PS25).

Technical Explanation > Original Exposure and Feed System > Control of ADF > Original Size Detection by ADF

2-21

Technical Explanation > Original Exposure and Feed System > Control of ADF > Reversal Operation

2-22

■Pickup and Feed Operations

The pickup unit consists of two rollers, a pickup roller and a feed roller. When the Start key is turned on (the original pickup signal is input), the delivery reversal motor (M12) turns in the normal direction, the pickup solenoid (SL5) turns off to lower the pickup unit, and then the pickup roller and feed roller turn to pick up and feed the original. A shutter and a separation pad are provided to prevent double feed of originals during pickup operation. The separation pad is used to separate the original. When the original arriving at the registration roller loops, the pickup solenoid (SL5) turns on to raise the pickup unit. Then, the registration solenoid (SL4) turns on and the feed motor (M11) turns to rotate the registration roller, feeding the original.

Pickup roller

Original

Shutter

■Reversal Operation

Reversal operation is performed in the duplex printing mode or various sized originals printing mode. There are two types of reversal operations: upstream reversal feed operation and downstream reversal feed operation. Either type of reversal feed operation is selected according to the following conditions:

1) Upstream reversal feed operation

• When the front side is read in the duplex printing mode

• When the front side is read in the various sized originals printing mode

2) Downstream reversal feed operation

• When the back side is read in the duplex printing mode

• When the back side is read in the various sized originals printing mode

Pickup solenoid (SL5)

Delivery reversal motor (M12)

Technical Explanation > Original Exposure and Feed System > Control of ADF > Reversal Operation

Feed roller

Separation pad

Shutter

F-2-34

2-22

Technical Explanation > Original Exposure and Feed System > Control of ADF > Reversal Operation

2-23

●Upstream Reversal Feed Operation

After the front of the original is read, the apper solenoid 1 (SL7) turns off and the apper solenoid 2 (SL6) turns on to feed the original to the upstream reversal path with the delivery reversal apper 1 and delivery reversal apper 2. When the original is fed by the registration roller, the roller release solenoid (SL8) turns on to raise the delivery reversal roller, thus preventing the delivery reversal roller from applying pressure to the paper.

1) The apper solenoid 1 turns off and the apper solenoid 2 turns on to feed the original to the upstream reversal path.

Delivery reversal flapper 2 Flapper solenoid 2: ON

SL6

SL7

Delivery reversal flapper 1 Flapper solenoid 1: OFF

F-2-35

3) The delivery reversal roller turns in the reverse direction to feed the original for back side read. After the original arrives at the registration roller, the roller release solenoid (SL8) turns on to raise the delivery reversal roller.

Delivery reversal roller (upper)

SL8

Roller release solenoid: ON

Registration roller

Delivery reversal flapper 2 Flapper solenoid 2: ON

SL6

F-2-37

2) After being fed by the specied distance in the upstream reversal path, the original stops.

Delivery reversal roller

Delivery reversal flapper 2 Flapper solenoid 2: ON

SL6

F-2-36

Technical Explanation > Original Exposure and Feed System > Control of ADF > Reversal Operation

2-23

Technical Explanation > Original Exposure and Feed System > Control of ADF > Delivery Operation

2-24

●Downstream Reversal Feed Operation

After the back side of the original is read, the apper solenoid 1 (SL7) turns on to feed the original to the downstream reversal path using the delivery reversal apper 1. Then, the original is delivered with the reversal roller and delivery roller.

1) The apper solenoid 1 turns on to feed the original to the downstream reversal path.

Delivery reversal flapper 1 Flapper solenoid 1: ON

SL7

F-2-38

2) After being fed by the specied distance in the downstream reversal path, the original stops.

Reversal roller

■Delivery Operation

After being read, the original is delivered to the original delivery tray using the delivery reversal roller and delivery roller.

1) The apper solenoid 1 turns off and the apper solenoid 2 turns off to feed the original.

Delivery reversal flapper 2 Flapper solenoid 2: OFF

SL6

SL7

Delivery reversal flapper 1 Flapper solenoid 1: OFF

F-2-41

2) The original is delivered to the original delivery tray.

F-2-39

3) The reversal roller turns in the reverse direction to deliver the original.

Delivery roller

F-2-40

Technical Explanation > Original Exposure and Feed System > Control of ADF > Delivery Operation

Original delivery tray

F-2-42

2-24

Technical Explanation > Original Exposure and Feed System > Control of ADF > Jam Detection

2-25

■Jam Detection

Whether jam is occured or not, determined by whether there is paper or not in the sensor area by the timing check that memorized in advance by the reader controller PCB. When the reader controller PCB detected jam, it will stop feeding operation and display the message in the operation panel about the jam occurrence. As the machine stores the jam codes, it can be checked by outputting a jam error log report in the service mode.

PS30

PS25

PS23

The jam is detected by the following sensors.

• ADF open/closed detection sensor (PS23)

• Lead sensor (PS25)

• Registration sensor (PS26)

• Stay sensor (PS27)

• Reversal sensor (PS28)

• Original set sensor (PS30)

PS27

PS28

PS26

F-2-43

Jam type Sensor Jam description

Registration sensor delay jam PS26 When the registration sensor cannot detect an

original within the specied time. Registration sensor stationary jam

Lead sensor delay jam PS25 When the lead sensor cannot detect the original

Lead sensor stationary jam PS25 When the trailing edge of the original cannot be

Stay sensor delay jam PS27 When the stay sensor cannot detect the original

Stay sensor stationary jam PS27 When the trailing edge of the original cannot be

Reversal sensor delay jam PS28 When the reversal sensor cannot detect the original

Reversal sensor stationary jam PS28 When the trailing edge of the original cannot be

ADF open jam PS23 When the ADF is opened during its operation. Initial stationary jam PS25/

Pickup NG jam PS30 When original pickup operation starts with no original

Timing error jam - When the original feed sequence is not completed

PS26 When the trailing edge of the original cannot be

detected after lapse of the specied time after the

original was detected by the registration sensor.

within the specied time.

detected after lapse of the specied time after the

original was detected by the lead sensor.

within the specied time.

detected after lapse of the specied time after the

original was detected by the stay sensor.

within the specied time.

detected after lapse of the specied time after the

original was detected by the reversal sensor.

When an original is detected in the feed path during

PS26/ PS27/

PS28

pickup of the rst original.

set on the original pickup tray.

during the specied time.

T-2-12

Technical Explanation > Original Exposure and Feed System > Control of ADF > Jam Detection

2-25

Technical Explanation > Original Exposure and Feed System > Work of Service > When replacing the parts

Work of Service

■Periodically Replaced Parts

None

■Consumable Parts

No. Parts name Parts number Q'ty Estimated life

1 ADF Pickup Roller Unit FM4-7732 1 80,000 sheets 2 ADF Separation Pad FL3-5538 1 80,000 sheets

■Periodical Servicing

None Perform as needed.

■When replacing the parts

Part name Operation Reference

Contact image sensor (CIS)

Copyboard glass

ADF reading glass

• CIS gain and offset correction

• DF white level adjustment

• Input the value of label on the copyboard glass

• DF white level adjustment

• DF white level adjustment Refer to page 5-4

Refer to page 5-3

2-26

T-2-13

T-2-14

Technical Explanation > Original Exposure and Feed System > Work of Service > When replacing the parts

2-26

J8109

J8202 J8115

Technical Explanation > Main Controller > Overview > Conguration/Function

2-27

Main Controller

Overview

■Conguration/Function

SO-DIMM

Main Controller PCB

Secondary Battery

Item Function

Main Controller PCB

Image memory (SO-DIMM)

Flash ROM

SRAM USB port

Ethernet port SD Card slot Secondary Battery

F-2-44

System Control/Memory Control/Printer Output Image Processing Control, Reader Image Input Processing, Card Reader Connection I/F, Image Processing for FAX, USB Expansion HUB Connection I/F Temporarily saving image data Capacity 256MB (Max. 512MB) For FAX or SEND-equipped model; standard: 512MB

Storing System Software Boot ROM: 16MB Program ROM: 128MB

Keeping user data/service data information

USB2.0 Device I/F, USB2.0 Host I/F Ethernet I/F SD I/F Models with FAX or SEND function only

Secondary Battery for image backup at power failure (to backup for 1 hour by 2-hour charging)

T-2-15

●Main controller PCB

J8106

J8114

BAT1

J8102

J8124

J8134

J8142

SW3

J8143 J8112 J8125 J8116 J8119

J8200 J8201

J8117

Jack Function Jack Function

J8104 USB port J8134 Connector to connect to FAX J8106 Slot to connect to SO-DIMM J8142 Connector to connect to Laser Scanner J8109 For debug J8143 Connector to connect to Laser Scanner J8111 Connector to connect to LAN J8150 USB port

Connector to connect to DC

J8112

Controller PCB Connector to connect to Control

J8114

Panel Connector to connect to Control

J8117

Card

Connector to connect to Card

J8119

Reader

Connector to connect to Control

J8124

Panel Connector to connect to Control

J8125

Card

J8200 Connector to connect to FAX

J8201 Connector to connect to FAX

J8202 Connector to connect to Reader

Lithium Battery for RTC Life: approx. 10 years

BAT1

Replacement of a single battery is not available in the service eld.

Switch to shut power supply when replacing

SW3

SO-DIMM

J8111

J8104

J8150

F-2-45

T-2-16

Technical Explanation > Main Controller > Overview > Conguration/Function

2-27

Other iR machine

Technical Explanation > Main Controller > Controls > Image Processing Module Conguration

2-28

Controls

■Image Data Flow

Copy

Print output

Original

Scan

Image data

- SEND

- FAX

- PullScan

- E-Mail

- PDL Print

F-2-46

■Image Processing Module Conguration

Reader Controller PCB

DC Controller PCB

SO-DIMM

Reader unit input image processing block

Processes the image data read by the reader unit.

Main Controller PCB

Printer unit output image processing block

Processes image data for output to the printer unit.

F-2-47

Technical Explanation > Main Controller > Controls > Image Processing Module Conguration

2-28

Main controller PCB

Technical Explanation > Main Controller > Controls > Compression/Expansion/Edit Processing Block

2-29

■Reader Unit Input Image Processing

Reader unit

Enlargement/reduction

Edge emphasis

-intensify-to-density conversion

-density adjustment (F adjustment)

-gamma correction

Binary processing (error diffusion)

To compression/expansion/editing block

Main controller PCB

■Compression/Expansion/Edit Processing Block

Reader image processing block

Enlargement/

reduction

Rotation

Integration

to printer unit output image processing block

PDL image processing block

Compression

Expansion

SO-DIMM

F-2-49

F-2-48

Technical Explanation > Main Controller > Controls > Compression/Expansion/Edit Processing Block

2-29

Main controller PCB

Technical Explanation > Main Controller > Controls > Image Data Flow of Copy Function

2-30

■Printer Output Image Processing

Compression/expansion/editing block

Binary density conversion

Enlargement/reduction

Smoothing

To DC controller PCB

■Image Data Flow of Copy Function

Reader unit

Main controller PCB

Image processing block for reader unit

SO-DIMM

Data rotation

Data compression

Data expansion

F-2-50

Image processing block for printer unit

Technical Explanation > Main Controller > Controls > Image Data Flow of Copy Function

DC controller PCB

F-2-51

2-30

Technical Explanation > Main Controller > Controls > Image Data Flow of FAX Transmission Function

2-31

■Image Data Flow of SEND Function

Reader unit

Main controller PCB

Image processing block for reader unit

Data expansion

Data rotation

Resolution conversion

Ethernet port

(compression data)

SO-DIMM

USB2.0

■Image Data Flow of FAX Transmission Function

Reader unit

Main controller PCB

Image processing block for reader unit

SO-DIMM

Data compression

Data rotation

Data expansion

Image processing block for FAX

To network

F-2-52

Technical Explanation > Main Controller > Controls > Image Data Flow of FAX Transmission Function

Super G3 Fax Board

F-2-53

2-31

Ethernet

Technical Explanation > Main Controller > Controls > Image Data Flow of PDL Function

2-32

■Image Data Flow of FAX Reception Function

Super G3 Fax Board

Main controller PCB

Image processing block for fax

Data rotation

Data compression

Data expansion

Image processing block for printer unit

SO-DIMM

■Image Data Flow of PDL Function

PDL

Rendering processing block

Compression/expansion

/editing block

Processing block for printer unit

DC controller PCB

Main controller PCB

SO-DIMM

F-2-55

DC controller PCB

F-2-54

2-32

Technical Explanation > Main Controller > Controls > Image Data Flow of PDL Function

Technical Explanation > Main Controller > Service Tasks > Periodical Servicing

Service Tasks

■Periodically Replaced Parts

None.

■Consumable Parts

None.

■Periodical Servicing

None.

2-33

Technical Explanation > Main Controller > Service Tasks > Periodical Servicing

2-33

Technical Explanation > Laser Exposure System > Construction > Main Conguration Parts

2-34

Laser Exposure System

Construction

■Specications/Controls/Functions

●Laser light

The number of laser light Output Wave length

●Scanner motor

Motor type The number of rotation Type of bearing

●Polygon mirror

The number of facet

●Controls

Synchronous control Laser intensity control Others

4 10mW 775nm to 799nm (Infrared laser)

DC brushless motor Approx 36732 rpm / 31715 rpm (2-speed control) Oil

6 (Φ40)

Main scanning direction synchronous control APC control Laser ON/OFF control Laser scanner motor control Laser shutter control

T-2-17

T-2-18

T-2-19

T-2-20

■Main Conguration Parts

[1]

[1] Laser Unit [2] Polygon mirror [3] BD mirror [4] BD PCB

[3]

[2] [4]

Name Function

F-2-56

Emits laser Scans the laser light in the main scanning direction Reects the laser light in the BD PCB direction Generates the BD signa

T-2-21

Technical Explanation > Laser Exposure System > Construction > Main Conguration Parts

2-34

Technical Explanation > Laser Exposure System > Construction > Control System Conguration

2-35

■Control System Conguration

Controls for the laser exposure system are mainly performed by the Main Controller PCB and Image PCB.

Laser driver PCB

J602

J601

Image signal

Laser control signal

Scanner motor control signal

Scanner motor PCB

J208

DC Controller PCB

BD PCB

BD signal

Signal name Function

Image signal DATA C+ C laser image data signal entry DATA C- C laser image data signal entry DATA B- B laser image data signal entry DATA B+ B laser image data signal entry DATA A- A laser image data signal entry DATA A+ A laser image data signal entry DATA D+ D laser image data signal entry DATA D- D laser image data signal entry Laser control signal CTRL0-0 A/B laser control signal CTRL0-1 A/B laser control signal CTRL0-2 A/B laser control signal CTRL1-0 C/D laser control signal CTRL1-1 C/D laser control signal CTRL1-2 C/D laser control signal Scanner motor control signal POLYGON_M_FG* FG output signal POLYGON_M_ACC* Motor speed-up signal POLYGON_M_DEC* Motor speed-down signal BD signal BD BD signal

T-2-22

Main Controller PCB

J8143

Technical Explanation > Laser Exposure System > Construction > Control System Conguration

J8142

F-2-57

2-35

Technical Explanation > Laser Exposure System > Basic Sequence > Basic Sequence

Basic Sequence

■Basic Sequence

Initial rotation (INTR): After the control panel key is ON, the machine starts the scanner motor and rotates the laser scanner motor until it reaches the number of target rotation while keepingall laser OFF. Once it reaches the target, the machine enters stand-by mode. (FG control) If pressing the start key before the control panel key is ON*, standby time gets shorter after the scanner motor reaches the target.

Print (PRINT): When copy start key is ON, the machine drives D laser. After BD PCB detects D laser, the machine performs the APC (laser intensity) control of each laser. Oncethe BD signal reaches the specied cycle, the machine is ready to print. Image data is output from the main controller based on the synchronous signal and laser isemitted corresponding to it.

Control panel key ON

Laser scanner motor

PVREQ signal

(Start key ON 1 )

Waiting in FG control

Speed up

Start key ON

PRINT STBYSTBY INTR

BD control

Speed down

2-36

Laser

BD 1

Laser D

Laser C

Laser B

Laser A

1: BD signal is generated based on A laser light. Only A laser light reaches BD sensor on BD PCB and B/C/D laser does not reach.

BD 1

Laser D

Laser C

Laser B

Laser A

ight on

Light offLight offLight off

: BD detection/APC control

: AP control

Technical Explanation > Laser Exposure System > Basic Sequence > Basic Sequence

Image per 1 line

F-2-58

2-36

Technical Explanation > Laser Exposure System > Various Controls > Controlling the Laser Activation Timing

Various Controls

■Controlling the Laser Activation Timing

●Laser ON/OFF Control

Laser ON/OFF control is dependent on the combination of the laser control signal (A/B laser: CNT0-0/0-1/0-2, C/D laser: CNT1-0/1-1/1-2) from the image PCB.

2-37

Laser control signal Laser status

CNT0-0 CNT0-1 CNT0-2 A Laser B Laser

1 1 1 Image data output Image data output 0 1 1 Forcible output OFF 1 0 1 OFF Forcible output 0 0 1 Forcible output Forcible output 1 1 0 Forcible output OFF Forcible output OFF 0 1 0 ON (For APC control) OFF 1 0 0 OFF ON (For APC control) 0 0 0 Discharge: APC reset

(Fixed when laser is not used)

Laser control signal Laser status

CNT1-0 CNT1-1 CNT1-2 C Laser D Laser

(Fixed when laser is not used)

Discharge: APC reset

(Fixed when laser is not used)

Discharge: APC reset

(Fixed when laser is not used)

T-2-23

T-2-24

CTRL_1-2

CTRL_1-1

CTRL_1-0

CTRL_0-2

CTRL_0-1

CTRL_0-0

J8142

Main Controller PCB

F-2-59

Technical Explanation > Laser Exposure System > Various Controls > Controlling the Laser Activation Timing

2-37

Technical Explanation > Laser Exposure System > Various Controls > Controlling the Laser Activation Timing

2-38

●Main Scanning Synchronous Control

Main scanning synchronous control is operated at synchronous PCB based on BD synchronous signal. Based on BD signal that is formed from A laser light detected by BD PCB, BD synchronous signal for each laser is formed inside image PCB. Image data written in the line memory is read out by the readable signal (RE_A, RE_B, RE_ C, RE_D) according to the 4 phase differences formed inside the delayPCB based on the BD synchronous signal (BD_SYNCH) and is sent to the laser driver.

[6]

BD signal

J8143

J8142

[1] Synchronous PCB [4] VDO [2] Delay PCB [5] VDO signal process unit [3] Line memory [6] Laser driver PCB BD_SYNCH: BD synchronous signal RE_A/B/C/D: Readable signal

NOTE: Regarding BD signal formation Not B laser but A laser only reaches BD sensor on BD PCB. BD signal is formed based on A laser light.

[5]

Main Controller PCB

Technical Explanation > Laser Exposure System > Various Controls > Controlling the Laser Activation Timing

[1]

BD_SYNCH

[2]

RE_A

RE_B

RE_C

RE_D

[3]

[4]

[3]

F-2-60

2-38

Technical Explanation > Laser Exposure System > Various Controls > Controlling the Laser Shutter

2-39

■Controlling the Intensity of Laser Light

●APC Control

The machine monitors the laser light that is emitted to the built-in photo diode of laser diode and adjusts the laser to appropriate intensity.

■Controlling the Laser Scanner Motor

●Controlling the Laser Scanner Motor

From when the laser scanner motor starts and the laser scanner motor reaches the number of target rotation to before image formation starts, the machine controlsthe rotation speed by referring to the laser scanner motor rotation speed signal (FG signal). During image formation, it controls the laser scanner motor rotationspeed based on BD signal. Laser scanner motor rotation speed is controlled by speed-up signal (ACC signal) and speeddown signal (DEC signal).

■Controlling the Laser Shutter

●Laser Shutter Control

When the right door opens, laser shutter will be closed by laser shutter link that works in conjunction with the right door and the laser light is blocked. Also, whenthe front door or right door open is detected, laser scanner motor and the laser emission will be turned OFF.

[1]

[2]

DOOR CLOSED

[1][3] [3] [1]

DOOR OPEN

ACC

DEC

J208

DC Controller PCB

F-2-61

Technical Explanation > Laser Exposure System > Various Controls > Controlling the Laser Shutter

[2] [2]

1] Laser shutter

[

[2] Laser shutter link (works in conjunction with the right door) [3] Laser unit

F-2-62

2-39

Technical Explanation > Image Formation System > Basic Conguration > List of Image Formation Specications

Image Formation System

Basic Conguration

■List of Image Formation Specications

Item Specications/Function/Method Photosensitive Drum

Primary Charging

Developing Developing method

Transfer Transfer method

Separation Separation method

Waste Toner

Type Cleaning mechanism Processing speed

Charging method

Roller diameter Cleaning mechanism

Developing Cylinder OD Toner Toner level detection mechanism

Roller diameter Cleaning mechanism

Organic Photo Conductor High Durable Drum (E Drum) Cleaning Blade 311mm/sec (at pickup from Cassette)

134mm/sec (at pickup from Multi-purpose Tray) Roller charging AC bias constant voltage control: approx. 550 to 2600Vp-p DC bias constant voltage control: approx. -400 to -800V DC bias switch control (variable by Environment Sensor Detection) Diameter: 12 Brush Roller (Diameter: 10) Dry, 1-component toner projection development AC bias constant voltage control: approx. 800Vp-p DC bias control: approx. -250 to -650V DC bias switch control (Variable by density setting and Environment Sensor Detection) Diameter: 20

Magnetic negative toner Toner detection by Toner Level Detection Sensor (in Sub

Hopper and Developing Assembly)

Roller charging DC constant current control: approx. 25 to 30 micro A Cleaning bias control: -1650V (DC constant voltage control) DC current level control (variable by Environment Sensor Detection, paper type, paper width and pickup location) Diameter: 16

Cleaning bias application Electrostatic separation (Static Eliminator) + curvature

separation DC constant voltage control: -2600V (strong bias), -2200 (weak bias)

To collect into Waste Toner Box

Waste Toner Box capacity: approx. 750g

2-40

T-2-25

Technical Explanation > Image Formation System > Basic Conguration > List of Image Formation Specications

2-40

Technical Explanation > Image Formation System > Basic Conguration > Major Components in image formation system

■Major Components in image formation system

The following shows major component parts in image formation system:

[3]

[4]

[14]

[13]

[1]

[2]

[5]

[6]

[7]

[8]

Name Function

[1] Drum Unit

[2] Brush Roller

[3] Primary Charging Roller

[4] Cleaning Blade

[5] Waste Toner Feed Screw

[6] Photosensitive Drum [7] Static Eliminator

[8] Transfer Roller

[9] Developing Cylinder

[10] Developing Assembly

[11] oner Feed Screw

(Inside Developing Assembly)

[12] Toner Feed Screw

(Inside Hopper) [13] Hopper Assembly [14] Toner Container

2-41

A unit consists of the Photosensitive Drum, Primary Charging Roller, etc. To rotate by engaging with the Primary Charging Roller to clean the Primary Charging Roller. To rotate by engaging with the Photosensitive Drum to make the surface of Photosensitive Drum negativelycharged. To remove residual toner on the surface of Photosensitive Drum. To feed toner that was collected by the Cleaning Blade into the Waste Toner Box. To create image on the surface of Photosensitive Drum.

To make the back side of paper negatively-charged to separate the paper from the Photosensitive Drum. To make the back side of paper positively-charged to transfer toner on the paper. To transfer toner in the Developing Assembly on the Photosensitive Drum. A unit consists of the Developing Cylinder, Developing Blade, etc. To ll toner that was supplied from the Sub Hopper into the Developing Assembly

To feed toner that was supplied from the Toner Bottle into the Developing Assembly.

To accumulate toner supplied from the Toner Bottle. A toner-lled container for toner supply

T-2-26

[12]

Technical Explanation > Image Formation System > Basic Conguration > Major Components in image formation system

[11]

[10]

[9]

F-2-63

2-41

■Image Formation Process

Primary charging roller

The image formation system of this machine consists of the Photosensitive Drum, Primary Charging Roller, Developing Cylinder, Transfer Charging Roller, Static Eliminator and Cleaning Blade, and the image formation process around the Drum Unit mainly consists of the 6 blocks.

[2]

[1]

Technical Explanation > Image Formation System > Basic Conguration > Image Formation Process

Cleaning Blade

[6]

Photosensitive drum

Paper

[5]

Static eliminator

Image formation block Description

[1] Primary charging block

[2] Laser exposure block

[3] Developing block

[4] Transfer block

[5] Separation block

[6] Drum cleaning block

To evenly make the surface of the Photosensitive Drum negatively-charged. To neutralize electric charge by scanning laser beam on the drum surface to create latent image. To create visible image by attaching toner that has been negatively charged from the Developing Cylinder to the latent static latent image on the surface of the Photosensitive Drum. To apply positively-charged potential from the back side of paper to transfer toner on the drum to the paper. To separate paper from the Photosensitive Drum by elastic force of paper and make the paper easy to be separated by applying negatively-charged potential from the back side of paper. To remove residual toner on the surface of the drum by the Cleaning Blade to be collected into the Waste Toner Box.

2-42

T-2-27

[3]

Transfer charging roller

[4]

Developing cylinder

F-2-64

Technical Explanation > Image Formation System > Basic Conguration > Image Formation Process

2-42

Pickup

Registration

Image write

Technical Explanation > Image Formation System > Basic Sequence > Last rotation sequence

2-43

Basic Sequence

The following shows the basic sequence of this machine:

■Initial rotation sequence

• At pickup from Cassette and pickup from Multi-purpose Tray

Main Motor (M2)

Primary Charging AC Bias

Primary Charging DC Bias

Laser

Developing AC Bias

Developing DC Bias

Developing Cylinder Clutch (CL2)

Transfer Bias

Static Eliminator Bias

F-2-65

■Sequence at printing

Image formation sequence

(1st sheet)

Main Motor (M2)

Primary Charging AC Bias Primary Charging DC Bias

Laser

Developing AC Bias

Developing DC Bias

Developing Cylinder Clutch (CL2)

Transfer Bias

Static Eliminator Bias

■Last rotation sequence

end

Sheet-to-sheet

sequence

Image formation sequence

(2nd sheet and later)

F-2-66

Technical Explanation > Image Formation System > Basic Sequence > Last rotation sequence

Main Motor (M2)

Primary Charging AC Bias

Primary Charging DC Bias

Laser

Developing AC Bias

Developing DC Bias

Developing Cylinder Clutch (CL2)

Transfer Bias

Static Eliminator Bias

Cleaning bias (-2700V) is applied at [1] as shown above.

[1]

F-2-67

2-43

Waste Toner Feed Screw

Primary charging roller

Technical Explanation > Image Formation System > Controls > Drum Unit

2-44

Controls

■Drum Unit

The Drum Unit mainly consists of the Photosensitive Drum, Primary Charging Roller, Brush Roller, Cleaning Blade and Waste Toner Feed Screw, and is driven by the Main Motor (M2). The Cleaning Blade is in contact with the surface of the Photosensitive Drum to remove residual toner on the surface of the Photosensitive Drum that was not transferred to the paper. Residual toner collected by the Cleaning Blade is sent from the Toner Ejection Mouth to Waste Toner Box by the Waste Toner Feed Screw. The Brush Roller is also in contact with the Primary Charging Roller, and the Brush Roller cleans the Primary Charging Roller.

Cleaning Blade

Brush Roller

Primary

Charging Roller

M 2

Toner Ejection Part

Photosensitive Drum

M2 Main Motor [1] Main Motor drive signal

DC Controller PCB

[1]

F-2-68

●Primary Charging Bias Control

This machine performs direct charging by the Charging Roller. AC bias is applied to the Primary Charging Roller to make steady DC bias and charging.

Photosensitive drum

HVT PCB

Environment sensor

[2]

Primary AC bias

[1] Primary charging bias control signal [2] Environment sensor detection signal

[1]

control circuit

Primary DC bias

control circuit

DC Controller PCB

F-2-69

●DC/AC bias constant voltage control

The DC bias control circuit and AC bias control circuit in the DC Controller PCB control DC bias and AC bias, which are applied to the Primary Charging Roller, to make constant voltage.

●Drum Unit Detection

Charging AC bias is applied at Power-on, recovery from sleep state, or opening/closing the door to detect the Drum Unit by the return value.

Technical Explanation > Image Formation System > Controls > Drum Unit

●DC bias switch control

DC bias changes output value of DC bias according to the environment detected by the Environment Sensor (THU1).

2-44

Photosensitive drum

Technical Explanation > Image Formation System > Controls > Developing Assembly

2-45

■Developing Assembly

The Developing Assembly mainly consists of the Developing Cylinder, Developing Blade, Toner Stirring Plate, and Toner Feed Screw, and is driven by the Main Motor (M2) and Sleeve Clutch (CL2). The Toner Feed Screw and Toner Stirring Plate feed the toner, which was sent from the Toner Container, to ll in the Developing Assembly. Toner in the Developing Assembly is detected by the Developing Assembly Toner Sensor (TS2), which is a magnetic sensor.

Toner Agitation Plate

Toner Feed Screw

TS2

Developing Blade

Developing Cylinder

CL 2

M 2

[1][2][3]

DC Controller PCB

●Developing Bias Control

DC bias and AC bias are applied to the Developing Cylinder.

Density Setting

Main Controller PCB

Environment sensor

[3]

Developing AC bias

control circuit

[2]

[1] Developing bias control signal [2] Environment sensor detection signal [3] Density setting signal

HVT PCB

[1]

DC Controller PCB

Developing cylinder

Developing DC bias

control circuit

F-2-71

F-2-70

TS2 Developing Assembly Toner Sensor CL2 Sleeve Clutch M2 Main Motor [1] Sleeve Clutch drive signal [2] Main Motor drive signal [3] Developing Assembly Toner Sensor detection signal

Technical Explanation > Image Formation System > Controls > Developing Assembly

●DC/AC bias constant voltage control

The DC bias control circuit and AC bias control circuit in the DC Controller PCB control DC bias and AC bias, which are applied to the Developing Cylinder, to make constant voltage.

●DC bias switch control

DC bias changes output value of DC bias according to the environment and density settings detected by the Environment Sensor (THU1).

2-45

Technical Explanation > Image Formation System > Controls > Toner Supply Area

2-46

■Toner Supply Area

●Toner Supply Control

Route of Toner Supply

Toner Cartridge

TS2

TS1 Hopper Toner Sensor M2 Main Motor M6 Hopper Motor M5 Bottle Motor [1] Hopper Toner Sensor detection signal [2] Bottle Motor drive signal [3] Main Motor drive signal [4] Hopper Motor drive signal

TS1

Sub Hopper

Toner Feed Screw

Developing Assembly

M 2M 5 M 6

DC Controller PCB

[1][2][3][4][5]

F-2-72

Title Description Supply timing

Supply to the Sub Hopper

Supply to the Developing Assembly

To supply developer in the Toner Container into the Sub Hopper

To supply developer from the Sub Hopper to the Developing Assembly.

When output result of Hopper Toner Sensor (TS1) changes from H to L.

The Developing Clutch is turned On and the Main Motor (M2) is driven.*1 When output result of Developing Assembly Toner Sensor (TS2) changes from H to L while the above conditions are satised.

*1 The screw of Developing Assembly is driven by the Main Motor; therefore, supplying toner

Operation of the host

machine

To drive the Bottle Motor (M5) intermittently (to rotate for 3 sec and stop for 2 sec). To drive the Hopper Motor (M6) intermittently (to rotate for 1 sec and stop for 1 sec)

T-2-28

while the Main Drive Motor is not driven causes toner leakage.

●Toner level detection

Message

(machine

operation)

Supply toner.

T-2-29

Detection description Detection timing

Toner-out alert (when the number of printable sheets reaches 1000 (sheets) based on 6% of image ratio with A4 paper) Toner-out (Level of toner in the Developing Assembly is approx. 0%.)

When output result of the sensor changes from H to L while there has been no change in value of the sensor despite a supply operation for approx. 150 sec. When the Developing Assembly Toner Sensor (TS2) detects toner-out and the machine has printed 1000 sheets with 6% image ratio with A4 paper.

Detecting to

(location)

Hopper Toner Sensor

Developing count by Developing Assembly Toner Sensor (TS2)

Technical Explanation > Image Formation System > Controls > Toner Supply Area

2-46

Technical Explanation > Image Formation System > Controls > Toner Supply Area

●Detection for replacing Toner Container

This machine does not have a sensor to detect replacement of a Toner Container. Therefore, execute the toner supply sequence as follows to determine replacement of a Toner Container.

• Toner supply sequence

1. Make the Main Motor (M2), Developing Clutch, Hopper Motor (M6) and Bottle Motor (M5) driven to supply toner.

2. When the Hopper Level Sensor detects presence of toner, the machine resumes normal operation. When the Hopper Level Sensor failed to detect presence of toner for more than 60 sec, it is determined that there has been no replacement of a Toner Container.

• Replacement when the power is turned ON

When the Front Cover is opened/closed, the machine determines that a Toner Container has been replaced and executes toner supply sequence.

• Replacement when the power is turned OFF or the machine is at sleep 2 state

The machine executes the toner supply sequence at power-on if there was a toner-out alert or toner-out message when the power was turned OFF the last time.

2-47

Technical Explanation > Image Formation System > Controls > Toner Supply Area

2-47

Photosensitive drum

Technical Explanation > Image Formation System > Controls > Transfer Unit

2-48

■Transfer Unit

The Transfer Unit mainly consists of the Transfer Roller and Static Eliminator, and the Transfer Roller rotates by engaging with the Drum Unit

Separation Static Charge Eliminator

Transfer Roller

F-2-73

●Transfer bias/separation static eliminator bias control

DC bias is applied to the Transfer Roller and Static Eliminator.

[1] Separation static eliminator bias control signal [2] Transfer bias control signal

[3] Environment sensor detection signal

●Transfer bias constant current controll

Transfer bias, which is applied to the Transfer Roller, is controlled by the Transfer Bias Control Circuit in the DC Controller PCB to make constant current.

●Transfer bias level control

Transfer bias changes output value of transfer bias according to the environment detected by the Environment Sensor (THU1), paper type, paper width, pickup position, etc.

●Cleaning bias control

This is a control to apply negatively-charged voltage at last rotation to bring the toner attached on the Transfer Roller back to the Photosensitive Drum.

●Separation static eliminator bias control

Two types of negatively-charged voltages, weak and strong biases, are applied to the Static Eliminator according to the print mode and sequence so that the paper is easy to be separated from the Photosensitive Drum by reducing electrostatic absorption force.

Static eliminator

Environment sensor

HVT PCB

[3]

Technical Explanation > Image Formation System > Controls > Transfer Unit

Transfer charging roller

Transfer bias control circuit

DC Controller PCB

[2]

Static eliminator bias

control circuit

[1]

F-2-74

2-48

Technical Explanation > Image Formation System > Controls > Waste Toner Box

2-49

■Chang in bias by user mode (Special Mode)

Special mode settings in user mode include a mode to change the density or improve the separation performance by changing the bias. The following describes the mode which executes bias control.

User mode Overview Setting value Control details

Special Mode M (Density adjustment)

Special Mode O (Separation priority mode)

Special Mode E (Background density adjustment mode)

To change the density by chancing the value of transfer bias.

To control the separation bias in the case of frequent jams on the 2nd side when using backside of printed paper, etc.

To darken the density of background such as watermark.

Standard (Default) Low The density is lightened by

High The density is darkened by

Off (Default) On Separation bias at paper feed is

Off (Default) On The background density is

Normal control

weakening the bias.

strengthening the bias. Normal control

strengthened. Also, the leading edge margin is set to 4.5mm. Normal control

darkened by strengthening the transfer bias.

T-2-30

■Waste Toner Box

●Overview

The toner, which was not transferred to the paper but attached on the Photosensitive Drum, is removed by the Cleaning Blade that is in contact with the Photosensitive Drum, and then fed into the Waste Toner Box by the Waste Toner Feed Screw. There is a screw for feeding toner in the Waste Toner Box. This screw is driven by the Waste Toner Motor and engaged with movement of the Hopper Motor. Note that there is no mechanism to detect presence of a Waste Toner Box with this machine. The Front Cover cannot be closed unless the Waste Toner Box is mechanically installed; therefore, the machine is not driven without having the Waste Toner Box installed

Waste Toner Box

Waste Toner Feed Screw

Waste Toner

Full Sensor (PS2)

Technical Explanation > Image Formation System > Controls > Waste Toner Box

Toner

F-2-75

PS2 Waste toner full level sensor

2-49

Technical Explanation > Image Formation System > Service Tasks > Periodical Servicing

2-50

●Full Detection

Detection description Detection timing

Alert for full level of waste toner (approx. 2000 sheets left to reach the full level of waste toner) Full level of waste toner (0% left to reach ful

When replacing a Waste Toner Box and the Waste Toner Full Sensor detects absence of waste toner after the Waste Toner Full Sensor detected presence of a Waste Toner Box, the counter of the Waste Toner Box is cleared. When replacing a Waste Toner Box before the alert, be sure to clear the following in service mode: COUNTER > DRBL-1 > WST-TNR

Special full level detection

When attaching a Waste Toner Container that has been used by the other machine, or the counter information is lost for some reason, it is necessary to notify full level before an alert is given. (The counter shows less than 50,000 although the sensor detects full level of waste toner) In such a case, it is determined as full level without an alert and the machine cannot continue printing. Explain the user that there will be no alert when any of the above is executed.

When output result of the sensor changes from H to L and the total counter value exceeds 50,000 sheets. fter approx. 2000 sheets have been printed by starting the Developing Assembly

Detecting to

(location)

Waste Toner Full Sensor Total counter

Total counter Replace the Waste

Message

(machine operation)

Prepare the Waste Toner Case. (Continuous printing is enabled.)

Toner Case. (Host machine is stopped.)

T-2-31

Service Tasks

■Periodically Replaced Parts

None

■Consumable Parts

No. Parts name Parts number Q'ty Estimated life

1 Waste Toner Container FM4-8035 1 100,000 sheets 2 Transfer Roller FM4-6522 1 180,000 sheets 3 Static Eliminator FL3-4857 1 90,000 sheets

T-2-32

■Periodical Servicing

None Perform as needed.

Technical Explanation > Image Formation System > Service Tasks > Periodical Servicing

2-50

Technical Explanation > Fixing System > Overview > Specications

2-51

Fixing System

Overview

■Features

This machine uses the on-demand xing method.

Separation Guide

Fixing Film

Fixing Heater

Fixing Inlet Guide

Fixing Delivery Roller

Fixing Inlet Guide

Pressure Roller

■Specications

Item Function/method

Fixing method Fixing speed

Fixing Heater Control temperature Temperature Control Cleaning mechanism Edge temperature rising control Fixing Arch Control

Protection function

*1. The gure varies depending on xing mode and xing temperature at the start of Startup control.

On-demand xing 139mm/sec (1/1-speed high: 0.8% acceleration) 137mm/sec (1/1-speed) 133mm/sec (1/1-speed slow: 3.1% deceleration) Ceramic Heater 208 deg C (plain paper) *1 Main Thermistor, Sub Thermistor Cleaning Roller Down sequence Loop Sensor

Main Thermistor, Sub Thermistor, Thermoswitch (Rated operational temperature: 250 deg C)

T-2-33

Technical Explanation > Fixing System > Overview > Specications

F-2-76

2-51

Technical Explanation > Fixing System > Overview > Major Components

2-52

■Major Components

Sub Thermistor (THM2)

Pressure Roller

Fixing Film Unit

Fixing Pressure

Release Sensor (PS18)

Fixing Paper

Sensor (PS19)

Part name Function / method

--- Film Unit

--- Pressure Roller

H1/H2 Fixing Heater

TH1 Main Thermistor

TH2 Sub Thermistor

TP1 Thermoswitch

Fixing Pressure

PS18

Release Sensor

PS19 Fixing Paper Sensor

A toner image on paper is xed by applying heat/pressure.

Ceramic Heater Engaged with the heater

Temperature control and abnormal temperature rising detection Engaged with the heater

Temperature control, abnormal temperature rising detection, edge temperature-rising/cooling control

A kind not engaged with the heater. AC power supply is blocked at detection of a failure.

Detection of pressure application/release to the Film Unit

Jam Detection

T-2-34

Fixing Thermistor (THM1)

Fixing Thermoswitch (TP1)

Fixing Heater (H1)

Technical Explanation > Fixing System > Overview > Major Components

Sub Heater (H2)

F-2-77

2-52

Technical Explanation > Fixing System > Controls > Fixing Temperature Control (temperature control)

2-53

Controls

■Fixing Temperature Control (temperature control)

●Standby Temperature Control

This is a control to pre-heat the Fixing Assembly to reduce time to start printing.

• Flying Startl

●Print Temperature Control

This is a control to increase xing temperature to the target level and keep it during printing.

• Startup (initial rotation) temperature control

• Print temperature control

• Paper interval temperature controll

●Down Sequence Control

This is a control to prevent xing failure due to temperature increase at the edge or temperature decrease. Productivity (throughput) decreases.

• Down sequence when feeding small-size paper

• Down sequence when switching paper sizel

F-2-78

Technical Explanation > Fixing System > Controls > Fixing Temperature Control (temperature control)

2-53

Technical Explanation > Fixing System > Controls > Print temperature control

2-54

■Standby Temperature Controll

Max. 10 sec

●Flying Start

Purpose:

To reduce time to print the rst sheet (FCOT).

F-2-79

■Print temperature control

F-2-80

●Startup (initial rotation) temperature control

A xing temperature is increased to a printable temperature after receiving a command to start printing.

Starting conditions:

• When opening the Copyboard Cover or ADF while the detected temperature of the Main Thermistor is lower than 100 deg C.

• When setting the original on the ADF while the detected temperature of the Main Thermistor is lower than 100 deg C.

• When the Main Power Switch is turned ON or the machine is recovered from sleep mode to standby mode while the detected temperature of the Main Thermistor is lower than 180 deg C

Control description:

The temperature control target is set at 177 deg C and the Fixing Motor is controlled at half-speed to start operation. The control continues for 10 sec at most until the machine receives a command to start printing.

Technical Explanation > Fixing System > Controls > Print temperature control

●Print temperature control

To set optimal target temperature to prevent xing failure or offset, and keep the specied target temperature during printing

A.Setting the target temperature

A target temperature is determined according to the paper type/size, time which elapsed from when xing temperature control (including standby control) nished the last time, and xing temperature when startup control started.

B.Temperature control during printing

When the paper passes through the Fixing Assembly, temperature is controlled to keep the target temperature (see the next page) according to the detected temperature of the Main Thermistor.

2-54

Technical Explanation > Fixing System > Controls > Print temperature control

2-55

C.Paper interval temperature control

At paper interval where no paper is fed to the Fixing Assembly, the control temperature is set lower than the print control temperature (-5 deg C *1) to prevent temperature rising of the Fixing Assembly and save energy.

*1. -5 deg C for plain paper. The temperature is set at -15 deg C or -20 deg C according to the paper type.

Target temperature during printing

The control temperature is determined according to the xing mode and xing temperature at the start of Startup control. Eight xing modes are available according to the selected pickup cassette and paper type. The following shows an example of control temperature when the xing temperature at the start of Startup control is 65 deg C or higher and lower than 70 deg C: (Temperature at standby with 20 deg C room temperature)

Control temperature (deg C)

1-sided print/1st side

Fixing mode Setting

Plain paper (64 to 90g/m Heavy paper 1 (91 to 105g/m2) Heavy paper 2 (106 to 128g/m2) Bond paper Transparency Envelope Special Mode N (Medium) Special Mode N (High)

*1 Special Mode N (Medium): -20 deg C of normal control temperature (at pickup from

cassette, when xing temperature at the start of Startup control is 100 deg C or higher)

*2 Special Mode N (High): -35 deg C of normal control temperature (at pickup from

cassette, when xing temperature at the start of Startup control is 100 deg C or higher)

)

Paper type

of 2-sided print

Normal

Speed

215 155 210 150 215 155 210 150

--- 175 --- 170

--- 150 --- ---

--- 180 --- 175 195 150 185 145 180 145 170 140

Low

Speed

2nd side of 2-sided

Normal

Speed

Low

Speed

T-2-35

Related Service Mode Fixing control temperature offset (to increase/reduce control temperature) PRINT > SW > 62 (control temperature at the time of normal pickup) > 63 (control temperature in heavy paper/heavy paper H/Bond Paper mode) > 166 (control temperature at the time of low speed pickup) > 173 (control temperature on the 2nd side of 2-sided print)

<Setting value> 0 to 2: +15 degrees C 3 to 11: +12 to -15 degrees C (increment by 3 degrees C) [Default: 7] 12 to 14: -15 degrees C

Technical Explanation > Fixing System > Controls > Print temperature control

2-55

Technical Explanation > Fixing System > Controls > Down Sequence Control

2-56

■Down Sequence Control

●Down sequence when feeding small-size paper

Purpose:

To prevent xing offset and deterioration of the Fixing Film by controlling temperature increase at a non paper feed area at continuous printing of small-size paper (paper that has smaller than A4R of width-direction length)

Starting conditions:

Down sequence is performed in a stepwise manner. This is a control to reduce throughput on a step-by-step basis as the detected temperature of the Sub Thermistor reaches the specied temperature or higher as shown in the table below for consecutive 400msec during printing.

Stages Normal The 1st stage The 2nd stage The 3rd stage

A temperature to go for the next stage

Operation:

Increasing paper interval (to make longer temperature control at a temperature lower than that of normal print) to reduce xing temperature in 4 stages at most.

Fixing mode Stages LGL

Plain paper (64 to 90g/m2) Heavy paper 1 (91to 105g/ m2) Special Mode N (Medium)

Heavy paper 2 (106 to 128g/m2)

Bond paper Normal 13 22 17 17 ---

Transparency Normal --- 17 --- --- ---

Envelope Normal --- --- --- --- 12

235 degrees C 245 degrees C 255 degrees C 260 degrees C

T-2-36

A4R

LTRR

Normal 43/40/30 50/40/30 25 23 ---

1 25 25 20 20 --2 20 20 18 18 --3 15 15 15 15 ---

Normal 14 21 17 17 ---

1 10 17 14 10 --2 8 14 10 8 --3 6 6 6 6 ---

1 10 15 14 10 --2 8 14 10 8 --3 6 6 6 6 ---

1 --- 14 --- --- --2 --- 10 --- --- --3 --- 6 --- --- ---

1 --- --- --- --- 10 2 --- --- --- --- 8 3 --- --- --- --- 6

A5R/B5R

EXE-R/STMTR

Custom

size

Envelope

T-2-37

Termination condition:

When the machine detects 175 degrees C or lower for consecutive 400msec after reaching the 3rd stage, the machine is recovered to move to the 1st stage.

Normal

245deg C,400msec

1st Step

255deg C,400msec

2st Step

260deg C,400msec

3st Step

Related Service Mode Temperature settings to start down sequence PRINT > SW > 64

<Setting value> 0: +20 deg C 1: +10 deg C 2: 0 deg C [default: 2] 3: -10 deg C 4: -20 deg C

Return 210deg C,400msec

F-2-81

Technical Explanation > Fixing System > Controls > Down Sequence Control

2-56

Technical Explanation > Fixing System > Controls > Change in xing performance by user mode (Special Mode)

2-57

●Down sequence when switching paper size

Purpose:

When feeding a sheet with a wider width than a preceding sheet during continuous printing, temperature at the non paper-feed area of the preceding sheet increases, and it can cause xing offset and wrinkles when feeding the succeeding sheet. This down sequence controls temperature increase at the non paper feed area.

Non-feed area

Film

Non-feed area

Starting conditions:

When the paper is switched to a wider paper than the preceding sheet during printing, the detected temperature of the Sub Thermistor is higher than 210 deg C (*1).

Operation:

This is a control to stop pickup of the succeeding sheet and power distribution to the Fixing Heater to reduce xing temperature.

Termination condition:

When detected temperature of the Sub Thermistor is 170 deg C or lower (*1).

*1. The temperature differs according to the user mode settings (Special Mode S).

F-2-82

■Change in xing performance by user mode (Special Mode)

Changing the control temperature or throughput affects xing performance in some modes of special mode settings in user mode. The following describes the mode which affects xing performance.

User mode Overview Setting value Control temperature/throughput

Special Mode N (to avoid curl/jam at a high humidity environment)

Special Mode P (to avoid curl of thin paper/ recycled paper)

Special Mode G (to increase xing performance of

This is a mode to set temperature control when any of plain paper, recycled paper, color paper or 3-hole paper is selected on the Control Panel. To reduce productivity to increase xing performance.

To reduce productivity to increase xing performance.

heavy paper)

Special Mode S (to ease deceleration of print speed at temperature rising at the edge)

To reduce wait time for pickup permission temperature when the paper size is changed to prioritize productivity over xing performance.

*1 Special Mode N (Medium): -20 deg C of normal control temperature (at pickup from

cassette, when xing temperature at the start of Startup control is 100 deg C or higher)

*2 Special Mode N (High): -35 deg C of normal control temperature (at pickup from cassette,

when xing temperature at the start of Startup control is 100 deg C or higher)

Off Normal temperature control

(temperature control for plain paper

Auto (to increase xing performance) (Default)

Manual (Medium) (to increase xing performance)

Manual (High) (to increase xing performance)

Off (Default)

Medium (to increase xing performance)

High (to increase xing performance)

Off (Default)

On (to increase xing performance)

Off (default)

On (Priority on productivity)

mode) This is a mode to switch between the

normal temperature control and N1 mode (*1) according to the environment (temperature/humidity).

Special Mode N (Medium) mode temperature control

Special Mode N (High) mode (*2) temperature control

Normal temperature control (temperature control for plain paper mode)

Thin paper mode temperature control

S-thin paper mode temperature control

Normal control

To reduce throughput by 4 or 5 sheets

This is a control to set the pickup permission temperature at 210 deg C and pickup recovery temperature at 170 deg C.

This is a control to set the pickup permission temperature at 190 deg C and pickup recovery temperature at 230 deg C.

T-2-38

Technical Explanation > Fixing System > Controls > Change in xing performance by user mode (Special Mode)

2-57

Technical Explanation > Fixing System > Controls > Pre-xing arch level control

2-58

■Pre-xing arch level control

Purpose:

Constantly creating an optimal arch between the transfer and xing areas prevents a shock, which occurs when the paper's trailing edge passes through the Registration Roller, and obtains an optimal image.

Fixing Film

Pressure Roller

Sensor: OFF

Photosensitive Drum

Starting conditions:

This control is performed every time the paper is fed.

Operation:

The Arch Sensor detects a paper arch between the transfer nip and xing nip to change the drive speed of the Fixing Motor.

1) When the paper's leading edge goes over 35mm from the Transfer Roller, drive speed of the Fixing Motor is reduced by 3.1% against the process speed. The reduced speed is maintained until the paper creates an arch and the Arch Sensor is turned ON.

2) After the Arch Sensor has been detected ON for consecutive 50msec or longer, drive speed of the Fixing Motor is increased by 0.8% against the process speed. The increased speed is maintained until the paper arch disappears and the Arch Sensor is turned OFF. loop.

3) After the Arch Sensor has been detected OFF for consecutive 50msec or longer, drive speed of the Fixing Motor is reduced by 3.1% against the process speed. The reduced speed is maintained until the paper creates an arch and the Arch Sensor is turned ON.

4) Repeat steps 2) and 3). When the paper's trailing edge reaches at 10mm before the Transfer Roller, drive speed of the Fixing Motor is increased by 0.8% against the process speed.

Registration Roller

Technical Explanation > Fixing System > Controls > Pre-xing arch level control

Arch Sensor (PS9)

Transfer Roller

5) Go back to step 1) in the case of continuous printing. The machine goes to the last rotation operation in the case of 1 sheet print.

Sensor: ON

F-2-83

2-58

Technical Explanation > Fixing System > Service Tasks > Periodical Servicing

2-59

■Protection function

Code Description

E000

Error in xing temperature rising 0001 When the detected temperature of the Main Thermistor fails to reach the

E001

E002

E003

E004

E014

E261

specied temperature at temperature rising control.

Error in overheating of Fixing Assembly 0000 When the Main Thermistor detects 250 deg C or higher for consecutive

200msec or longer.

0001 When the hardware circuit detects overheating of the Main Thermistor or

Sub Thermistor for 30msec or longer.

0002 When the Sub Thermistor detects 295 deg C or higher for consecutive

200msec or longer.

Error in temperature rising of Fixing Assembly 0000 1. When the Main Thermistor detected a temperature lower than 115 deg C

for consecutive 400msec or longer after 6 seconds that the Main Thermistor detected 100 deg C

2. When the Main Thermistor detected a temperature lower than 150 deg C for consecutive 400msec or longer after 6.0 seconds that the Main

Thermistor detected 140 deg C Detection of low temperature 0000 When the Main Thermistor detects lower than 140 deg C for consecutive

400msec or longer. Thermistor disconnection detection error 0000 When removal of the connector (J214) is detected for consecutive 30msec. Not

Error in rotation of Fixing Motor (M1) 0001 Detection is performed every 100msec since the start of drive and there has

been no lock detection signal in 2sec. 0002 Detection is performed every 100msec during the drive (after the lock

detection) and the lock signal has not detected for 5 times consecutively (in

500msec). 0003 When the Fixing Pressure Release Sensor never detected pressure release

during the 3 seconds while the xing pressure was released 0004 When the Fixing Pressure Release Sensor never detected pressure during

the 3 seconds while the xing pressure was applied Error in zero cross signal 0000 When the relay is ON, the zero cross signal failed to be detected for

500msec or longer.

*When the same status is detected again despite an error retry.

Clearing

of error

Required

required

Not required Not required

Not required

T-2-39

Service Tasks

■Periodically Replaced Parts

None.

■Consumable Parts

No. Parts name Parts number Q'ty Estimated life

Fixing Assembly (120V) FM4-6495 1 160,000 sheets

Fixing Assembly (230V) FM4-8050 1 160,000 sheets

■Periodical Servicing

None. Perform as needed.

T-2-40

Related Service Mode Error code clear CLEAR > ENGIN > ERRCLR

Technical Explanation > Fixing System > Service Tasks > Periodical Servicing

2-59

Technical Explanation > Pickup Feed System > Overview > Parts Conguration

2-60

Pickup Feed System

Overview

■Specications

Item Description Paper storage method Pickup method Cassette

Multi-purpose Tray

Stacking capacity Cassette

Multi-purpose Tray Paper feed reference Paper size Cassette

Multi-purpose Tray

Paper weight Cassette

Multi-purpose Tray Paper size switching Supported size for 2-sided print 2-sided print method

*1: "Setting method when the size detection patterns are overlapped"(page 2-64).

*2: Long length paper is supported.

To make a copy with long length paper, settings are required in service mode and applicable mode.(Up to 620mm image supported.)

*3: Custom paper size is not supported.

Cassette

Multi-purpose Tray

Cassette

Multi-purpose Tray

Front-loading method Retard separation Pad separation 550 sheets (80g/m2), 650 sheets (64g/m2) 100 sheets (80g/m2), 110 sheets (64g/m2) Center reference A4-R, A5-R, B5-R, LGL, LTR-R, STMT-R, EXEC-R,

16K-R special standard-size *1 Width: 99mm to 216mm Length: 140mm to 356mm (Up to 630mm long length paper can be supported. *2) A4-R, A5-R, B5-R, LGL, LTR-R, STMT-R, EXEC-R, 16K-R, Envelopes (No.10 (COM10), ISO-B5, Monarch, ISO-C5, DL) 64 to 105g/m

64 to 128g/m2 Auto switching Manual switching 210mm to 356mm (105g/m2) 210mm to 356mm (105g/m2) *3 Through path

T-2-41

■Parts Conguration

●Rollers Layout drawing

[16]

[1] Reverse Roller [9] Duplex feed roller 2 [2] Delivery Roller [10] Registration Roller [3] Fixing outlet roller [11] Vertical Path Roller [4] Duplex feed roller 1 [12] Multi-purpose Tray Pickup Roller [5] Pressure Roller [13] Multi-purpose Tray Pullout Roller [6] Fixing Roller [14] Separation Roller [7] Drum [15] Feed Roller [8] Transfer Roller [16] Pickup Roller

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[12][13][14][15]

F-2-84

Technical Explanation > Pickup Feed System > Overview > Parts Conguration

2-60

Technical Explanation > Pickup Feed System > Overview > Parts Conguration

2-61

●Sensors Layout Drawing

PS6

PS4

PS5

PS19

PS9

PS8

PS11

PS12

PS20

●Route of Drive

SL2

CL1

SL3

PS13 PS7PS14PS15PS16PS17SW2

F-2-85

PS4 Delivery Paper Full Sensor PS13 Cassette Pickup Sensor PS5 Delivery Sensor PS14 Cassette Lifting Plate Detection Sensor PS6 Reverse Paper Sensor PS15 Cassette Paper Sensor PS7 Multi-purpose Tray Paper Sensor PS16 Cassette Paper Level Sensor A PS8 Duplex Feed Sensor PS17 Cassette Paper Level Sensor B PS9 Loop Sensor PS19 Fixing Paper Sensor PS11 Registration Sensor PS20 Transparency Sensor PS12 Pre-Registration Sensor SW2 Cassette Size Detection Switch

NOTE: Transparency detection of this machine is performed by the Transparency Sensor (PS20) which is a ag-type sensor. Uneven speed at the time of transparency feed is detected to judge whether it is transparency.

Technical Explanation > Pickup Feed System > Overview > Parts Conguration

M1 Fixing Motor CL1 Registration Clutch M2 Main Motor SL1 Multi-purpose Tray Pickup Solenoid M4 Reverse Feed Motor SL2 Reverse Feed Solenoid M7 Duplex Feed Motor SL3 Cassette Pickup Solenoid M8 Pickup Motor M9 Lifter Motor

SL1

F-2-86

2-61

Technical Explanation > Pickup Feed System > Overview > Paper Path

■Paper Path

2-62

Reversing Point

Delivery Point

Pickup From Cassette

Pickup From Manual Feeder

Technical Explanation > Pickup Feed System > Overview > Paper Path

F-2-87

2-62

Technical Explanation > Pickup Feed System > Controls > Cassette Pickup Assembly

2-63

Controls

■Overview

Reverse/Duplex

Assembly

Delivery

Assembly

Fixing / Registration

Assembly

Multi-Purpose Pickup

Assembly

■Cassette Pickup Assembly

●Overview

Paper inside a cassette is lifted up by the Lifting Plate. When pickup takes place, the Cassette Pickup Solenoid (SL1) is turned ON so that the Pickup Roller is moved down. When the Pickup Roller comes in contact with the surface of paper, the paper is picked up by rotation of the roller. Only a single paper picked up is moved to the feed path by the Feed Roller and the Separation Roller, and moved as far as the Registration Roller by the Vertical Path Roller. If the Cassette Pickup Sensor (PS13) is ON when starting pickup (in the case that the succeeding paper is also picked up when a paper is picked up and fed), the feed speed is decreased. The Vertical Path Roller, Pickup Roller, Feed Roller, and Separation Roller are driven by the Cassette Pickup Motor (M8).

[1]

SL1

PS13

[4]

[2]

[3]

Cassette Pickup

Assembly

Area Detection/Control

Cassette Pickup Assembly

Multi-purpose Tray Pickup Assembly

Fixing/Registration Assembly Delivery Assembly Delivery Acceleration Control Delivery Full Detection Reverse/Duplex Assembly

Jam Detection List of Jam Codes Forcible Paper Feed Control

Technical Explanation > Pickup Feed System > Controls > Cassette Pickup Assembly

Paper Level Detection Control Pickup Retry Control Paper Detection Control Paper Size Detection Control Lifter Control Paper Detection Pickup Retry Control Paper Size Detection Registration Control Size Mismatch Detection Control

Reverse Flapper Operation Duplex Re-pickup Control Duplex Reverse Control Duplex Circulation

T-2-42

F-2-88

[5]

[1] Pickup Roller [4] Vertical Path Roller [2] Feed Roller [5] Lifting Plate [3] Separation Roller

F-2-89

●Pickup Retry Control

Pre-Registration Sensor

If the the start of pickup operation, operation of the Pickup Motor (M8) and the Cassette Pickup Solenoid (SL3) is suspended once, and the pickup operation is executed again. If the

Registration Sensor

(PS12) is not turned ON after re-pickup operation, a delay jam is notied.

(PS12) is not turned ON within a specied period of time after

Pre-

2-63

Technical Explanation > Pickup Feed System > Controls > Cassette Pickup Assembly

2-64

●Paper Size Detection Control

Paper size in a cassette is automatically detected by the "Cassette Size Switch". Paper size in a cassette is automatically detected by adjusting the Guide Plate position. By shifting the Guide Plate, concavo-convex area of the Cassette Size Dial is switched and the Cassette Size Switch at the printer side is switched. The switch consists of 4 microswitches, and length and width are detected in accordance with the combination of ON/OFF. As long as standard size paper, it can be used for both AB conguration and inch conguration. However, distinction between A5-R and STMT-R and between EXEC-R and 16K-R should be specied manually on the check screen.

SW2

F-2-90

Length Detection

Size Length 1 2 3 4

A5-R 210.0 - - ON ON STMT-R 215.9 - - ON ON B5-R 257.0 ON - - EXEC-R 267.0 ON ON - 16K-R 270.0 ON ON - LTR-R 279.4 - ON ON A4-R 297.0 ON - ON ON LGL 355.6 - - ON (No cassette) - - - - -

T-2-43

In addition, presence of the cassette is detected when the size switch is pushed. (If no switch is pushed, it is judged as no cassette.)

Rear Guide Plate

Cassette Size Switch (SW2)

Rear

Detection

Rink

F-2-91

Setting method when the size detection patterns are overlapped

Method to distinguish between A5-R and STMT-R and between EXEC-R and 16K-R is specied by the user settings. Method to distinguish the special paper is specied by the user settings. Setting sizes are as follows.

Related service mode PRINT> CST> CASX> CASX-UY> Setting number (Cassette paper size group special, standard-size paper entry) X indicates the cassette number, and Y indicates size category. (X, Y is one of the number 1/2/3/4.)

U sizes Settings

U1 26: OFI, 37: M-OFI, 24: FLSP, 25: A-FLSP,

42: FA4, 34: G-LGL 0: Default U2 32: G-LTR-R, 23: K-LGL-R, 0: Default U3 Not used U4 28: B-OFI, 0: Default

T-2-44

Technical Explanation > Pickup Feed System > Controls > Cassette Pickup Assembly

2-64

Technical Explanation > Pickup Feed System > Controls > Cassette Pickup Assembly

2-65

●Paper Level Detection Control

Paper level inside the cassette is detected by the sensors shown in the following table.

Cassette Paper

Level Sensor A

(PS16)

OFF OFF OFF 100% to 50%

ON OFF OFF

ON ON OFF Approx. 50 sheets or less

- - ON No papers

Cassette Paper

Level Sensor B (PS17)

Tray

Cassette Paper Level Sensor B

(PS17)

Cassette Paper

Level Sensor A (PS16)

Cassette Paper

Sensor (PS15)

Cassette Paper

Sensor (PS15)

Paper level

Approx. 50% to approx. 50

sheets

Paper Flag

Display on

the Control

Panel

T-2-45

If the paper is full

Cassette Paper

Level Sensor B

OFFOFF

If the paper is approx.half

Cassette Paper

Level Sensor B

OFFONON

If the paper is a little

Cassette Paper

Level Sensor B

Cassette Paper Level Sensor A

Paper

Paper Level Flag

Technical Explanation > Pickup Feed System > Controls > Cassette Pickup Assembly

Lifter Gear

F-2-92

If the paper is absent

Cassette Paper Sensor

Flag

Paper Tray

F-2-93

2-65

Technical Explanation > Pickup Feed System > Controls > Cassette Pickup Assembly

2-66

●Paper Detection Control

After the Cassette Lifting Plate Detection Sensor (PS14) is turned ON, the Cassette Paper Sensor (PS15) detects presence/absence of paper. When the Cassette Paper Sensor (PS15) is ON, absence of paper is notied. In addition, if the Cassette Lifting Plate Detection Sensor (PS14) is not turned ON even raising the Lifter for 3 seconds, absence of paper is notied.

Paper Flag

PS15

Lifting Plate

Lifting Plate Flag

PS14

Lifter

●Lifter Control

When Cassette is set

The Lifting Plate is raised until the Cassette Lifting Plate Detection Sensor (PS14) is turned ON.

During pickup

The behavior is determined in accordance with the detection when the Cassette Pickup Solenoid (SL3) is turned ON and the detection by the Cassette Lifting Plate Detection Sensor (PS14) executed 100msec. later.

100msec. later after Cassette Pickup Solenoid (SL3) is turned ON

ON OFF

When the Cassette Pickup Solenoid (SL3) is turned ON

Lifting Plate

ON - If the same detection continues for 5 consecutive

sheets, the Lifting Plate is raised until the Cassette Lifting Plate Detection Sensor (PS14) is turned ON.

OFF - Raising the Lifting Plate immediately until the Cassette

Lifting Plate Detection Sensor (PS14) is turned ON.

SL3

Lifting Plate Flag

PS14

Lifter

T-2-46

Technical Explanation > Pickup Feed System > Controls > Cassette Pickup Assembly

F-2-94

F-2-95

2-66

Technical Explanation > Pickup Feed System > Controls > Fixing/Registration Assembly

2-67

■Multi-purpose Tray Pickup Assembly

●Overview

Paper on the Multi-purpose Tray Pickup Tray of the Multi-purpose Tray Pickup Unit is pushed against the Multi-purpose Tray Pickup Roller by the Lifting Plate, and only a single sheet of paper is separated and fed by the work of the Multi-purpose Tray Pickup Roller and the Separation Pad.

Multi-purpose

Tray Pickup Roller

Multi-purpose Tray

Separation Pad

Pressure Spring

Manual Feeder

Paper Sensor (PS7)

Paper Detection

Lever

●Pickup Retry Control

If the Pre-Registration Sensor (PS12) is not turned ON within the specied period of time after the start of pickup operation, detection by the Multi-purpose Tray Paper Sensor (PS7) is referred.

• When Multi-purpose Tray Paper Sensor (PS7) is ON: Execute the pickup operation again. If the Pre-Registration Sensor (PS12) is not turned ON after the start of re-pickup operation, a delay jam is notied.

• When Multi-purpose Tray Paper Sensor (PS7) is OFF: Terminate the pickup operation.

SL1

Side Guide

Pickup Guide Plate

Multi-purpose Tray

F-2-96

■Fixing/Registration Assembly

●Registration Control

The Registration Roller is driven by the Main Motor (M2). There is the Registration Clutch (CL1) between the Registration Roller and the Main Motor, and it controls ON/OFF of the Registration Roller to align the paper with the image on the drum at the specied registration. In addition, the speed is decreased right before a paper hits the Registration Roller so that hitting sound is alleviated (speed is not decreased when picking up from the Cassette 1 of imageRUNNER 1730/1740).

CL1

Registration Roller

F-2-97

●Paper Detection

Presence/absence of paper is detected by the Multi-purpose Tray Paper Sensor (PS7). When absence of paper is detected but the same size and same type of papers exist in another paper source, auto cassette change is executed.

Technical Explanation > Pickup Feed System > Controls > Fixing/Registration Assembly

2-67

PS19

Pressure Roller

Delivery Speed Increased Position

Fixing Outlet Roller

Delivery Roller

Bond Paper

Technical Explanation > Pickup Feed System > Controls > Delivery Assembly

2-68

●Size Mismatch Detection Control

Whether the size is mismatched is determined by paper length. The time a paper passes through the Registration Sensor (PS11) is converted into distance. Compared with the paper size (specied by the user in case of the Multi-purpose Tray Pickup Tray) detected by the Cassette Size Detection Switch (SW1), if the measured distance is shorter than the specied distance (16mm), it is judged that the size is mismatched. Priority of the size mismatch detection control is lower than other controls. In addition, due to the behavioral error of paper, the measured distance has a margin of error of approx. +6mm.

Paper size mismatch cannot be detected with the following combinations because the difference in paper size is small.

• A4-R, LTR-R

• A5-R, STATEMENT-R

• B5-R, EXEC-R, 16K-R

In case of envelope, paper size mismatch is not detected (because detection by the Registration Sensor (PS11) is not stable when feeding the envelope).

■Delivery Assembly

●Delivery Acceleration Control

Since elasticity of bond paper is low, delivery speed is increased when feeding the bond paper to improve the stackability.

Condition for acceleration: When the Finisher is not installed, and the bond paper is set Timing for acceleration: When the trailing edge of paper passes through the Fixing Paper Sensor (PS19) Timing to return the speed: When the Registration Clutch (CL1) is turned ON for the succeeding paper

F-2-98

●Delivery Full Detection

If the Delivery Paper Full Sensor (PS4) is ON for a specied period of time, it is notied to the Main Controller PCB. After the notication, printing stops by the Controller's decision.

Technical Explanation > Pickup Feed System > Controls > Delivery Assembly

Detection Lever

PS4

Delivery Point

F-2-99

2-68

Reverse Flapper

SL2

PS6

Reverse Roller

Duplex Reverse Stop Position

25 mm

Duplex feed roller 1

PS8

58 mm

Duplex feed roller 2

Duplex Standby Position

Technical Explanation > Pickup Feed System > Controls > Reverse/Duplex Assembly

2-69

■Reverse/Duplex Assembly

●Reverse Flapper Operation

The Reverse Flapper behaves in accordance with the Reverse Feed Solenoid (SL2).

• When Reverse Feed Solenoid (SL2) is OFF: Feed to the Delivery Outlet

• When Reverse Feed Solenoid (SL2) is ON: Feed to the Reverse Mouth

F-2-100

●Duplex Reverse Control

Paper is reversed outside the machine using the Reverse Mouth. The paper is fed to the duplex reverse stop position (it stops at 25mm from the trailing edge of paper) by using the Reverse Sensor (PS6) as a reference. Then, reverse operation starts.

●Duplex Re-pickup Control

If it is possible to secure necessary paper interval by estimating the paper interval with the preceding paper when the Duplex Feed Sensor (PS8) is ON, the paper is re-picked up to the pre-registration. If the necessary paper interval cannot be secured, the paper stays at the duplex standby position (58mm downstream from the Duplex Lower Roller). After recalculated standby time has passed, re-pickup is executed.

Technical Explanation > Pickup Feed System > Controls > Reverse/Duplex Assembly

F-2-102

●Duplex Circulation

The following shows the number of circulating sheets at the 2-sided print.

Length in paper feed direction Number of circulating sheets

320mm or less 3

321mm or more 2

T-2-47

F-2-101

2-69

PS6

Reverse Roller

100 mm

Technical Explanation > Pickup Feed System > Controls > Jam Detection

2-70

■Jam Detection

●List of Jam Codes

A jam code consists of 4 alphanumeric characters. The upper 2 digits indicate the jam type, and the lower 2 digits indicate the sensor that detected a jam.

ACC ID Jam Code Type Sensor Name Sensor ID

3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3

0101 Delay Pre-Registration Sensor PS12 0201 Stationary Pre-Registration Sensor PS12 0A01 Power-on Pre-Registration Sensor PS12 0102 Delay Cassette 2 Retry Sensor (Option) PS103 0202 Stationary Cassette 2 Retry Sensor (Option) PS103 0A02 Power-on Cassette 2 Retry Sensor (Option) PS103 0103 Delay Cassette 3 Retry Sensor (Option) PS203 0203 Stationary Cassette 3 Retry Sensor (Option) PS203 0A03 Power-on Cassette 3 Retry Sensor (Option) PS203 0104 Delay Cassette 4 Retry Sensor (Option) PS303 0204 Stationary Cassette 4 Retry Sensor (Option) PS303 0A04 Power-on Cassette 4 Retry Sensor (Option) PS303 0105 Delay Registration Sensor PS11 0205 Stationary Registration Sensor PS11 0A05 Power-on Registration Sensor PS11 0107 Delay Fixing Paper Sensor PS19 0207 Stationary Fixing Paper Sensor PS19 0A07 Power-on Fixing Paper Sensor PS19 0108 Delay Delivery Sensor PS5 0208 Stationary Delivery Sensor PS5 0A08 Power-on Delivery Sensor PS5 010A Delay Reverse Sensor PS6 020A Stationary Reverse Sensor PS6 0A0A Power-on Reverse Sensor PS6 010B Delay Transparency Sensor PS20 020B Stationary Transparency Sensor PS20 0A0B Power-on Transparency Sensor PS20 010D Delay Duplex Feed Sensor PS8 020D Stationary Duplex Feed Sensor PS8 0A0D Power-on Duplex Feed Sensor PS8 0B00 Door open - 0CA0 Sequence jam*2- 0CF1 Error 0D91 Size Error - 9901 Sequence jam*2- 9902 Sequence jam*2- -

- -

ACC ID Jam Code Type Sensor Name Sensor ID

3 3 3 3 3

*1: The state is recovered by opening and closing the Door, or turning OFF and then ON the

power supply. If the same jam is detected regardless of the operation above, the error code is displayed. *2: The state is recovered by opening and closing the Door, or turning OFF and then ON the

power supply.

9903 Sequence jam*2- 9904 Sequence jam*2- 9905 Sequence jam*2- 9906 Sequence jam*2- 9907 Sequence jam*2- -

T-2-48

●Forcible Paper Feed Control

If the Finisher is installed when a jam occurs at the Reverse Assembly, jammed papers are forcibly fed because they cannot be seen. If the Reverse Paper Sensor (PS6) is ON, the Reverse Motor (M4) is driven for 100mm when opening/closing the door.

F-2-103

Technical Explanation > Pickup Feed System > Controls > Jam Detection

2-70

Technical Explanation > Pickup Feed System > Work of Service > Periodically Servicing

Work of Service

■Periodical ServicePeriodical Service

None

■Consumables

No. Item Parts No. Q'ty Life Remarks

1 Multi-purpose Tray Pickup Roller FL2-3897 1 150,000 sheets 2 Multi-purpose Tray Separation Pad FL3-4890 1 150,000 sheets 3 Cassette Pickup Roller FB6-3405 1 500,000 sheets Same as estimated

4 Cassette Feed Roller FC6-7083 1 80,000 sheets Replace with Cassette

5 Cassette Separation Roller FC6-6661 1 80,000 sheets Replace with Cassette

■Periodically Servicing

None

product life.

Separation Roller.

Feed Roller.

2-71

T-2-49

Technical Explanation > Pickup Feed System > Work of Service > Periodically Servicing

2-71

FM2

Technical Explanation > External Auxiliary System > Controls > Fan

2-72

External Auxiliary System

Controls

■Software counter

Count-up timing differs depending on the following conditions:

• Print mode (1-sided/2nd side of 2-sided print, 1st side of 2-sided print)

• Differs depending on the delivery position (Staple Finisher)

Print mode

Delivery position

Host machine Delivery Tray Delivery Sensor (PS5) Duplex Feed Sensor (PS8) Staple Finisher Delivery Sensor (S2)

1-sided print/2nd side of

2-sided print

Count-up timing

1st side of 2-sided print

T-2-50

■Fan

●Overview

Location of Fans

FM6

FM1

FM5

FM4

FM8

FM7

No. Name Function Error codes

Delivery Cooling Fan (Rear) To cool the Delivery Assembly E822-0004,E822-0005

FAN1

Delivery Cooling Fan (Center) To cool the Delivery Assembly E822-0002,E822-0003

FAN

Delivery Cooling Fan (Front) To cool the Delivery Assembly E822-0000,E822-0001

FAN3

Power Supply Cooling Fan To cool power supply E804-0000,E804-0001

FAN4

Heat Exhaust Fan (Front) To exhaust heat in the machine E805-0002,E805-0003

FAN5

Heat Exhaust Fan (Rear) To exhaust heat in the machine E805-0000,E805-0001

FAN6

Developing Cooling Fan (Front) To cool the Developing

FAN7

Developing Cooling Fan (Rear) To cool the Developing

FAN8

Assembly and laser

FM3

F-2-104

E820-0000,E820-0001

E820-0002,E820-0003

T-2-51

Technical Explanation > External Auxiliary System > Controls > Fan

2-72

Canon IR1730 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Safety Precautions

CDRH Act

Handling of Laser System

Laser Safety

Turn power switch ON

Power Supply

Safety of Toner

About Toner

Toner on Clothing or Skin

Notes When Handling the Lithium and Ni-MH Batteries

Notes Before it Works Serving

Points to Note at Cleaning

Notes On Assembly/Disassembly

Product Overview

Product Lineup

Host machine

Option

Features

Product Features

Weight and Size

Productivity (Print speed)

Paper type

Parts Name

External View

Cross Sectional View

Operation

Power Switch

Technical Explanation

Original Exposure and Feed System

Construction

Basic Operation

Controls

Dust detection correction control

Control of ADF

Work of Service

Main Controller

Overview

Controls

Service Tasks

Laser Exposure System

Construction

Basic Sequence

Various Controls

Image Formation System

Basic Sequence

Controls

Waste Toner Box

Service Tasks

Fixing System

Overview

Controls

Service Tasks

Pickup Feed System

Overview

Controls

Cassette Pickup Assembly

Work of Service

External Auxiliary System

Controls