Portable Manual
Feeder
DADF-M1
Feb 21 2005
Application
This manual has been issued by Canon Inc. for qualified 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.
Copyright
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 written consent of Canon Inc.
COPYRIGHT © 2001 CANON INC.
Printed in Japan
Caution
Use of this manual should be strictly supervised to avoid disclosure of confidential information.
Symbols Used
This documentation uses the following symbols to indicate special information:
Symbol Description
Indicates an item of a non-specific nature, possibly classified as Note, Caution, or Warning.
Indicates an item requiring care to avoid electric shocks.
Indicates an item requiring care to avoid combustion (fire).
Indicates an item prohibiting disassembly to avoid electric shocks or problems.
Introduction
Memo
REF.
Indicates an item requiring disconnection of the power plug from the electric outlet.
Indicates an item intended to provide notes assisting the understanding of the topic in question.
Indicates an item of reference assisting the understanding of the topic in question.
Provides a description of a service mode.
Provides a description of the nature of an error indication.
Introduction
The following rules apply throughout this Service Manual:
1. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical
and mechanical systems with 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 flipping 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 field. 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
Contents
Chapter 1 Maintenance and Inspection
1.1 Periodically Replaced Parts............................................................................................................................... 1- 1
1.1.1Periodically Replaced Parts......................................................................................................................... 1- 1
1.2 Durables............................................................................................................................................................. 1- 2
1.2.1Durables....................................................................................................................................................... 1- 2
1.3 Periodical Servicing .......................................................................................................................................... 1- 3
1.3.1Scheduled Servicing Chart .......................................................................................................................... 1- 3
1.4 Cleaning............................................................................................................................................................. 1- 6
1.4.1Parts of the ADF.......................................................................................................................................... 1- 6
1.4.2Rollers and Guides ...................................................................................................................................... 1- 6
1.4.3Sensors....................................................................................................................................................... 1- 12
1.4.4Applying Silicone Oil to the Reading Glass (copyboard glass) ................................................................ 1- 16
Chapter 2 Standards and Adjustments
2.1 Basic Adjustment .............................................................................................................................................. 2- 1
2.1.1Overview ..................................................................................................................................................... 2- 1
2.1.2Angle Guide (angle of opening at 90 deg) .................................................................................................. 2- 1
2.1.3Sensor Output .............................................................................................................................................. 2- 1
2.1.4Tray Width .................................................................................................................................................. 2- 2
2.1.5Eliminating the Tilt ..................................................................................................................................... 2- 2
2.1.6Height .......................................................................................................................................................... 2- 3
2.1.7Right Angle ................................................................................................................................................. 2- 3
2.1.8Angle Guide (angle of opening of 70 deg).................................................................................................. 2- 4
2.1.9Magnification .............................................................................................................................................. 2- 5
2.1.10Horizontal Registration ............................................................................................................................. 2- 6
2.1.11Leading Edge Registration ........................................................................................................................ 2- 7
2.1.12White Level ............................................................................................................................................... 2- 8
2.1.13Adjusting the Hinge Pressure .................................................................................................................... 2- 8
2.2 Adjustment at Time of Parts Replacement........................................................................................................ 2- 9
2.2.1Overview ..................................................................................................................................................... 2- 9
Chapter 3 Error Code
3.1 User Error Code................................................................................................................................................. 3- 1
3.1.1Alarm Code ................................................................................................................................................. 3- 1
Chapter 4 Outline of Components
4.1 Outline of Electrical Components ..................................................................................................................... 4- 1
4.1.1Sensors......................................................................................................................................................... 4- 1
4.1.2Motors, Clutches, Solenoids, PCBs, and Others ......................................................................................... 4- 2
4.2 Variable Resistors (VR), Light-Emitting Diodes (LED), and Check Pins by PCB .......................................... 4- 4
Contents
4.2.1Overview......................................................................................................................................................4- 4
4.2.2ADF Driver PCB .........................................................................................................................................4- 4
4.2.3Original Placement led PCB........................................................................................................................4- 4
Chapter 5 System Construction
5.1 Basic Construction.............................................................................................................................................5- 1
5.1.1Overview of the Electrical Circuitry............................................................................................................5- 1
5.1.2Inputs to the ADF Controller PCB ..............................................................................................................5- 1
5.1.3Outputs from the ADF Driver PCB.............................................................................................................5- 2
5.2 Product Specifications .......................................................................................................................................5- 4
5.2.1Specifications...............................................................................................................................................5- 4
Chapter 1 Maintenance
and Inspection
Contents
Contents
1.1 Periodically Replaced Parts................................................................................................................................ 1-1
1.1.1 Periodically Replaced Parts......................................................................................................................... 1-1
1.2 Durables.............................................................................................................................................................. 1-2
1.2.1 Durables....................................................................................................................................................... 1-2
1.3 Periodical Servicing ........................................................................................................................................... 1-3
1.3.1 Scheduled Servicing Chart .......................................................................................................................... 1-3
1.4 Cleaning.............................................................................................................................................................. 1-6
1.4.1 Parts of the ADF.......................................................................................................................................... 1-6
1.4.2 Rollers and Guides ...................................................................................................................................... 1-6
1.4.3 Sensors....................................................................................................................................................... 1-12
1.4.4 Applying Silicone Oil to the Reading Glass (copyboard glass) ................................................................ 1-16
1.1 Periodically Replaced Parts
Chapter 1
1.1.1 Periodically Replaced Parts
The machine does not have parts that must be replaced on a periodical basis.
0003-1674
1-1
Chapter 1
1.2 Durables
1.2.1 Durables
Some parts of the machine may have to be replaced once or more over the period of product life because of wear or
damage. Replace them when they fail7, using the following table as a guide; the number of originals the machine has
picked up may be checked using the host machine's service mode:
T-1-1
No Parts name Parts No. Q'ty Lifetime
1 Pickup roller FC3-0722 1 80,000
originals
2 Separation Base FL2-0748 1 80,000
originals
3 Feed Roller FC5-3155 1 80,000
originals
4 Separation pad FL2-0749 1 80,000
originals
5 Dust-colleting tapeA FC5-2959 1 80,000
originals
0003-1675
6 Dust-colleting tapeB FC5-2960 1 80,000
originals
7 Dust-colleting tapeC FC5-2961 1 80,000
originals
8 Dust-colleting tapeD FC5-3016 2 80,000
originals
9 Dust-colleting tapeE FC5-3017 5 80,000
10 Stamp(option) FB5-9410 1 7,000
originals
Expected service life shows the central value of a group of evaluation data points. Parts Numbers may subject to
change because of design
1-2
1.3 Periodical Servicing
Chapter 1
1.3.1 Scheduled Servicing Chart
Do not use solvents or oils other than those indicated.
Be sure to clean the rollers and scrapers, as the presence of paper lint or dust on them can cause lines in images.
A: clean B: lubricate C: replace D: adjustment
T-1-2
No Parts name Servicing*1
80,000 originals
or 6 months
1 White plate (copyboard cover) A
2 Post-separation sensor (prism) A
3 Read sensor (prism) A
160,000
originals or 12
month
0003-1677
4 Delivery reversal sensor (prism) A
5 No. 1 registration roller A
6 No. 1 registration roll A
7 No. 2 registration roller A
8 No. 2 registration roll A
9 Read roller 1 A
10 Read roll 1 A
11 Platen roller A
12 Platen upstream roll A
13 Platen downstream roll A
14 Read roller 2 A
15 Read roll 2 A
16 Reversing roll A
17 Reversing roller A
1-3
Chapter 1
No Parts name Servicing*1
80,000 originals
or 6 months
18 Delivery reversing upper roller A
19 Delivery reversing lower roller A
20 Original pickup tray A
Open/close guide (including
21
sheets) A
22 Delivery guide A
23 Reversing guide A
Pre-registration guide (including
24
sheets) A
25 Feed guide A
26 Reversing flapper A
27 White plastic film A
160,000
originals or 12
month
28 Dust-colleting tape C
29 Reading glass*2 B
DADF height (See the
30
Adjustment Procedure.) D
31 Roll scraper A
*1: the actual number of originals the machine has handled may be checked using its host machine's service mode:
COPIER>COUNTER>FEEDER>FEED.
*2: apply silicone oil.
The following diagram shows the arrangement of the parts that need to be serviced on a periodical basis:
1-4
[16] [17]
[4] [5] [6] [8] [7]
[10] [9] [12] [11] [13][14][15] [19] [18]
[21]
[2] [3]
[24]
[20]
F-1-1
23]
[31]
[25]
[27]
[22]
[26]
F-1-2
[1]
[28]
[29]
F-1-3
Chapter 1
1.4 Cleaning
1.4.1 Parts of the ADF
0003-1690
1. Platen Roller, Platen Upstream Roll, and Platen Downstream Roll
Wipe the platen roller [1] platen upstream roll [2], and platen downstream roll [3] with a cloth moistened with water
(well wrung); then, dry wipe them.
2. White Plastic Film
Wipe the white plastic film [4] with a cloth moistened with water (well wrung) or alcohol; then, dry wipe it.
3. White Plate (copyboard)
Wipe the white plate [5] with a cloth moistened with water or alcohol; then, dry wipe it.
[4]
[
1]
2]
[3]
F-1-4
[1] Platen roller
[2] Platen upstream roll
[3] Platen downstream roll
[4] White plastic film
[5] White plate (copyboard cover)
1.4.2 Rollers and Guides
0003-1708
1. Original Pickup Tray
Wipe the original pickup tray [1] with lint-free paper moistened with alcohol.
1-6
Chapter 1
[1]
F-1-5
2. Open/Close Guide (including sheets) and Revering Roll
1) Open the feeder cover, and detach the open/close guide.
2) Wipe the area of the open/close guide (including sheets) [1] coming into contact with paper and the reversing roll
[2] found behind the open/close guide with lint-free paper moistened withalcohol.
[2]
[1]
F-1-6
[1]
F-1-7
1-7
Chapter 1
3. No. 1 Registration Roller, No. 2 Registration Roller, No. 1 Registration Roll, No. 2 Registration Roll, and
Reversing Roller.
1) Clean the following in the order indicated: platen roller, No. 1 registration roll [1], No. 1 registration roller [2],
No. 2 registration roll [3], No. 2 registration roller [4], reversing roller [5].
1. make the following selections in service mode to highlight [ROLL-CLN], and press the OK key to rotate the
rollers: FEEDER>FUNCTION>ROLL-CLN.
2. force lint-free paper moistened with alcohol against the rollers to clean them.
3. press the OK key to stop the rollers.
Memo:
The No. 1 registration roller and the No. 2 registration roller will not rotate even when the foregoing service mode is
executed (i.e., FEEDER>FUNCTION>ROLL-CLN).
[1]
[3]
[4]
[2]
[5]
F-1-8
2) Clean the feeder inside cover [1], feed guide [2], reversing guide [3], delivery guide [4], and registration guide [5]
(including sheets) with lint-free paper moistened with alcohol.
1-8
[3]
Chapter 1
[1]
[2]
[4]
[5]
F-1-9
3) Remove the feeder cover and the feeder inside cover; then, clean the roll scraper [1] with lint-free paper moistened
with alcohol.
[1]
[1]
F-1-10
4. Read Roller 1 and Read Roller 2
1) Remove the 3 screws, and detach the front cover.
2) Detach the feeder cover.
3) Disconnect the connector [1], and remove the 2 screws [2]; then, detach the feed guide [3].
1-9