Canon H1 Bedienungsanleitung

654321

Color Image Reader Unit - H1

SERVICE MANUAL Rev0

Product Outline

Technology

Periodic Servicing

Parts Replacement and Cleaning Procedure

Adjustment

Installation

Appendix

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.

not be copied, reproduced or translated into another language, in whole or in part, without the

written 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. Remove the claw.

Check visually. Insert the claw.

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.

Turn on the power.

Set the cable/wire to the

cable guide or wire saddle.

Remove the screw.

Tighten the screw.

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, represents the path of mechanical drive; where a signal name

accompanies the symbol, the arrow 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.

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.

Contents

0 Safety Precautions

Notes Before it Works Serving ---------------------------------------------0-8

Points to Note at Cleaning --------------------------------------------------0-8

1 Product Outline

Original Exposure System (Reader) -------------------------------------1-2

Features (Reader) ----------------------------------------------------------------- 1-2

Specications (Reader) ------------------------------------------------------1-2

Specications -------------------------------------------------------------------------------- 1-2

Names of Parts (Reader) ---------------------------------------------------1-3

External View -------------------------------------------------------------------------------- 1-3

Cross Section -------------------------------------------------------------------------------- 1-3

Major Components ------------------------------------------------------------------------- 1-3

Reader Relay PCB ------------------------------------------------------------------------- 1-4

Features (DADF) --------------------------------------------------------------1-5

Specications (DADF) -------------------------------------------------------1-5

Names of Parts (DADF) -----------------------------------------------------1-5

External View ----------------------------------------------------------------------- 1-5

Cross Section ----------------------------------------------------------------------- 1-5

2 Technology

Controls (Reader) -------------------------------------------------------------2-2

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

Controlling the Scanner Drive System ------------------------------------------------ 2-3

CCD Unit -------------------------------------------------------------------------------------- 2-4

Enlargement/Reduction ------------------------------------------------------------------- 2-6

Detecting the Size of Originals ---------------------------------------------------------- 2-6

Dirt Sensor Control ------------------------------------------------------------------------2-10

Image Processing ------------------------------------------------------------------------- 2-11

Color offset correction in sub scanning ----------------------------------------------2-13

Servicing (Reader) ------------------------------------------------------------------- 2-14

Periodically Replaced Parts -------------------------------------------------------------2-14

Consumable Parts -------------------------------------------------------------------------2-14

Periodical Servicing -----------------------------------------------------------------------2-14

Action to take when replacing parts ---------------------------------------------------2-14

Major Adjustments -------------------------------------------------------------------------2-14

Troubleshooting ----------------------------------------------------------------------------2-14

Basic Conguration (DADF) ---------------------------------------------- 2-15

Component Conguration ------------------------------------------------------2-15

Outline of Electric Circuits ---------------------------------------------------------------2-15

Drive Conguration ---------------------------------------------------------------2-15

Sensor Layout ------------------------------------------------------------------------------2-16

Outline of Operation Modes ----------------------------------------------------2-16

Outline ----------------------------------------------------------------------------------------2-16

Forward Pickup/Delivery Operation ---------------------------------------------------2-16

Forward Pickup/Reverse Delivery Operation ---------------------------------------2-17

Controls (DADF) ------------------------------------------------------------- 2-19

Document Detection -------------------------------------------------------------2-19

Outline ----------------------------------------------------------------------------------------2-19

Initial Document Size Detection --------------------------------------------------------2-20

Document Pickup/Separation --------------------------------------------------2-21

Basic Pickup Operation ------------------------------------------------------------------2-21

Pickup Unit and Stopper -----------------------------------------------------------------2-22

Document Reversing -------------------------------------------------------------2-22

Basic Operation ----------------------------------------------------------------------------2-22

Document Feeding/Delivery ----------------------------------------------------2-23

Basic Operation ----------------------------------------------------------------------------2-23

Release Operation ------------------------------------------------------------------------2-24

Detecting Jams --------------------------------------------------------------------2-24

Jams ------------------------------------------------------------------------------------------2-24

Power Supply ----------------------------------------------------------------------2-25

Power Supply -------------------------------------------------------------------------------2-25

Stamp Operation ------------------------------------------------------------------2-25

Outline ----------------------------------------------------------------------------------------2-25

Fan -----------------------------------------------------------------------------------2-26

Fan Operation ------------------------------------------------------------------------------2-26

Work of service (DADF) --------------------------------------------------- 2-27

When replacing the parts -------------------------------------------------------2-27

1-5

Periodic Servicing -----------------------------------------------------------------2-27

3 Periodic Servicing

List of Work for Scheduled Servicing ------------------------------------3-2

4 Parts Replacement and Cleaning Procedure

List of Parts(Reader) ---------------------------------------------------------4-2

External Covers -------------------------------------------------------------------- 4-2

List of Electrical Components --------------------------------------------------- 4-2

External Covers(Reader) ----------------------------------------------------4-3

Removing the Reader Left Cover ---------------------------------------------- 4-3

Removing the Reader Front Cover -------------------------------------------- 4-3

Removing the Reader Right Cover -------------------------------------------- 4-3

Removing the Reader Rear Cover -------------------------------------------- 4-3

Original Exposure System (Reader) -------------------------------------4-4

Removing the Platen Glass ----------------------------------------------------- 4-4

Removing the ADF Scan Glass ------------------------------------------------ 4-5

Removing the CCD Unit ---------------------------------------------------------- 4-6

Cleaning in the CCD unit (Mirror No. 1 - 5) ---------------------------------4-10

Removing the Reader Controller PCB --------------------------------------- 4-11

Removing the Reader Assembly ----------------------------------------------4-12

List of Parts (DADF) -------------------------------------------------------- 4-15

External Covers -------------------------------------------------------------------4-15

Consumable Parts Requiring Periodic Replacement and Cleaning

Points --------------------------------------------------------------------------------4-15

List of Clutchs, Solenoids, Motors, Fans, PCBs --------------------------4-16

Others --------------------------------------------------------------------------------4-16

List of Sensors ---------------------------------------------------------------------4-17

External Covers (DADF) -------------------------------------------------- 4-18

Removing the Front Cover -----------------------------------------------------4-18

Removing the Rear Cover ------------------------------------------------------4-18

Removing the Feeder Cover ---------------------------------------------------4-19

Main Units (DADF) ---------------------------------------------------------- 4-20

Removing the Feed Unit --------------------------------------------------------4-20

Consumable Parts Requiring Periodic Replacement and Cleaning

Points (DADF) --------------------------------------------------------------- 4-22

Removing the Pickup Roller Unit ---------------------------------------------4-22

Removing the Separation Pad -------------------------------------------------4-23

Replacing the Stamp -------------------------------------------------------------4-23

Exchanging the Feed Guide ---------------------------------------------------4-24

Clutch Solenoid Motor Fan PCB (DADF) ----------------------------- 4-25

Removing the ADF Motor(M1) -------------------------------------------------4-25

Removing the Release Motor(M2) --------------------------------------------4-25

Removing the Pressurization Solenoid(SL1) ------------------------------4-26

Pickup Clutch/Registration Clutch(CL1/CL2) ------------------------------4-26

Removing the ADF Driver PCB ------------------------------------------------4-27

Removing the LED PCB --------------------------------------------------------4-28

Removing the Fan ----------------------------------------------------------------4-28

Removing the Sensor(SR1,SR2,SR3) ---------------------------------------4-29

Removing the Timing Sensor(SR4) ------------------------------------------4-32

Removing the Document Set Sensor(SR5) --------------------------------4-32

Removing the Cover Open/Closed Sensor(SR6) -------------------------4-32

Removing the Document Length Sensor(SR7,SR10) -------------------4-33

Removing the A4R/LTRR Identication Sensor(SR8) -------------------4-33

Removing the Release Motor HP Sensor(SR11) -------------------------4-34

Removing the Document Width Volume(VR1) ----------------------------4-34

Removing the hinge --------------------------------------------------------------4-35

Removing the left hinge ------------------------------------------------------------------4-35

Removing the Right hinge ---------------------------------------------------------------4-35

Removing the Platen roller -----------------------------------------------------4-36

5 Adjustment

Overview (Reader) ------------------------------------------------------------5-2

When replacing parts (Reader) --------------------------------------------5-2

Platen Glass --------------------------------------------------------------------------------- 5-2

ADF Scan Glass ---------------------------------------------------------------------------- 5-3

CCD Unit -------------------------------------------------------------------------------------- 5-3

Overview (DADF) -------------------------------------------------------------5-6

Outline -------------------------------------------------------------------------------- 5-6

Adjustment Method (DADF) ------------------------------------------------5-7

Preparation or Creation of Test Chart ----------------------------------------- 5-7

Adjusting the Height of the hinge ---------------------------------------------- 5-7

1-6

Pre-check ------------------------------------------------------------------------------------- 5-7

Adjustment Procedure --------------------------------------------------------------------- 5-7

Check the height of the left hinge ------------------------------------------------------ 5-8

Check the height of the right hinge ----------------------------------------------------- 5-8

Adjust the height of the left hinge ------------------------------------------------------- 5-9

Adjust the height of the right hinge ----------------------------------------------------- 5-9

Adj of DADF Tray width ---------------------------------------------------------5-10

AB-Conguration Adjustment -----------------------------------------------------------5-10

Inch-Conguration Adjustment ---------------------------------------------------------5-10

Adjusting the Perpendicularity -------------------------------------------------5-10

Scan position auto adj in DADF mode --------------------------------------- 5-11

Adj img pstn in DADF mode:horz scan --------------------------------------5-12

Adj of DADF img lead edge margin: front -----------------------------------5-12

Fine adj of DADF image magnictn: front ----------------------------------5-13

White level adj ---------------------------------------------------------------------5-13

6 Installation

How to Utilize This Installation Procedure ------------------------------6-2

When using the parts included in the package ----------------------------- 6-2

Symbols in the Illustration ------------------------------------------------------- 6-2

Caution During Installation --------------------------------------------------6-2

Check Items when Turning OFF the Main Power ---------------------6-2

Checking the Contents ------------------------------------------------------6-3

Installation Procedure --------------------------------------------------------6-5

Installation Procedure ------------------------------------------------------------- 6-5

Appendix

Service Tools ----------------------------------------------------------------------ii

Special Tools ------------------------------------------------------------------------------------ ii

Oils and Solvents ------------------------------------------------------------------------------ ii

General Circuit Diagram(Reader) ------------------------------------------- iii

General Circuit Diagram (1/1) -----------------------------------------------------iii

General Circuit Diagram (DADF) --------------------------------------------iv

General Circuit Diagram (1/1) -----------------------------------------------------iv

Signal Name List (DADF) ------------------------------------------------------v

Signal Name List ------------------------------------------------------------------------------- v

Safety Precautions

■Notes Before it Works Serving

■Points to Note at Cleaning

0-8

Safety Precautions > Points to Note at Cleaning

Notes Before it Works Serving

CAUTION:

At servicing, be sure to turn off the power source according to the specied steps and

disconnect the power plug.

CAUTION:

Do not turn off the power switch when downloading is under way. Turning off the main

power switch while downloading is under way can disable the machine.

Points to Note at Cleaning

CAUTION:

When performing cleaning using organic solvent such as alcohol, be sure to check

that the component of solvent is vaporized completely before assembling.

1Product Outline

Product Outline

■Original Exposure System

(Reader)

■Specications (Reader)

■Names of Parts (Reader)

■Features (DADF)

■Specications (DADF)

■Names of Parts (DADF)

1-2

Product Outline > Specications (Reader)

Original Exposure System (Reader)

Features (Reader)

• Adapting new CCD unit, allows low power consumption.

• Improvement of the CCD unit disassembly

Specications (Reader)

■Specications

Item Specication/function

Original exposure Indirect exposure by LED (LED & photoconductive body)

Original scan In book mode Scan by movement of CCD

In ADF mode Stream reading with CCD xed

Read resolution 600 dpi (main scanning) x 600 dpi (sub scanning)

Gradation 256 gradation

Carriage position detection CCD HP sensor (S11)

Magnication 25% to 400%

Main scanning

direction

Image is processed on main controller PCB 2

Sub scanning

direction

In book mode: speed change by carriage travel, image

process on main controller PCB *1

In ADF mode: original feed speed change, image process on

main controller PCB *1

Lens ST lens

CCD Number of lines: 4 (R, G, B, B/W)

Number of pixels: 7500 x 3 color lines, 7500 x 1 B/W line

Maximum original read width: 317.5mm

CCD unit drive control By scanner motor (M14)

Original size

detection

In book mode Main scanning direction: by CCD

Sub scanning direction: by reection sensor

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

Sub scanning direction: by photo interrupter on DADF

*1 Controls differ depending on magnications. Refer to [Magnications] for more information.

T-1-1

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