Canon Inner Finisher-L1 User manual

SERVICE
MANUAL
Inner Finisher-L1
Canon
May 11,2021
Rev.2
COPYRIGHT © 2021CANON INC.
CANON Inner Finisher-L1Rev. 2PRINTED IN U.S.A.

Important Notices
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.
Following "Trademarks" and "Copyright" are not applicable if they are not supported by laws and regulations in the country or
region that this document and products are used in.
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.
Trademarks
The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Canon
is under license.
Mopria®, the Mopria® Logo and the Mopria® Alliance logo are registered trademarks and service marks of Mopria Alliance, Inc.
in the United States and other countries. Unauthorized use is strictly prohibited.
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Microsoft, Windows, Windows Vista, Windows Server, Internet Explorer, Microsoft Edge, Excel and PowerPoint are either
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TORX® is a registered trademark of Acument Intellectual Properties, LLC in the United States.
Other product names and other names in this document are generally registered trademarks or trademarks of the companies.
Important Notices

Copyright
The copyright of this document belongs to Canon Inc. This document may not be copied, reproduced or translated into another
language, in whole or in part, without the prior consent of Canon Inc.
Copyright CANON INC. 2020
Caution
Use of this manual should be strictly supervised to avoid disclosure of confidential information.
Explanation of Symbols
The following symbols are used throughout this Service Manual.
Symbols Explanation Symbols Explanation
Check.
1x
Remove the claw.
Check visually.
1x
Insert the claw.
Check a sound. Push the part.
1x
Disconnect the connector. Connect the power cable.
1x
Connect the connector. Disconnect the power cable.
1x
Remove the cable/wire from the
cable guide or wire saddle.
Turn on the power.
1x
Install the cable/wire to the cable
guide or wire saddle.
Turn off the power.
1x
Remove the screw.
1x
Loosen the screw.
1x
Install the screw.
1x
Tighten the screw.
Important Notices

Symbols Explanation Symbols Explanation
Cleaning is needed. Measurement is needed.
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.
Important Notices

Contents
Safety Precautions...............................................................................................1
Points to Note Before Servicing.......................................................................................................... 2
Points to Note at Cleaning...................................................................................................................2
Notes on Assembly/Disassembly........................................................................................................2
Points to Note when Tightening a Screw.................................................................................................2
1. Product Overview.............................................................................................4
Features.............................................................................................................................................. 5
Features...............................................................................................................................................5
Specifications...................................................................................................................................... 6
Finisher Unit......................................................................................................................................... 6
Staple Unit............................................................................................................................................7
Staple-free Staple Unit.......................................................................................................................... 8
Name of Parts..................................................................................................................................... 9
External View........................................................................................................................................9
Cross Section....................................................................................................................................... 9
2. Technical Explanation................................................................................... 10
Basic Configuration........................................................................................................................... 11
Functional Configuration......................................................................................................................11
Overview of Electrical Circuitry.............................................................................................................11
Controls.............................................................................................................................................12
Controls..............................................................................................................................................12
Basic Operation.................................................................................................................................13
Outline............................................................................................................................................... 13
Initialization.........................................................................................................................................16
Feed Unit...........................................................................................................................................17
Outline............................................................................................................................................... 17
Feeding Paper to Processing Tray Unit.................................................................................................17
Processing Tray Unit.........................................................................................................................19
Outline............................................................................................................................................... 19
Stacking Operation..............................................................................................................................19
Alignment/Shifting Operation................................................................................................................21
Staple Operation................................................................................................................................. 28
Staple-free Staple Operation................................................................................................................29
Stack Delivery Operation..................................................................................................................... 31
Paper Retainer Operation.................................................................................................................... 32
Stack Tray Unit..................................................................................................................................33
Stack Tray Shift Operation...................................................................................................................33
Stack Tray Paper Height Detection Control........................................................................................... 33
Stack Tray Paper Full Detection...........................................................................................................34
Jam Detection................................................................................................................................... 35
Outline............................................................................................................................................... 35
Jam Types..........................................................................................................................................35
Contents
i

Power Supply.................................................................................................................................... 37
Outline............................................................................................................................................... 37
Protective Functions............................................................................................................................37
Upgrading..........................................................................................................................................38
Upgrading...........................................................................................................................................38
3. Periodical Service.......................................................................................... 39
List of Work for Scheduled Servicing................................................................................................ 40
4. Parts Replacement and Cleaning................................................................. 41
Notes at Parts Replacement............................................................................................................. 42
Illustrations......................................................................................................................................... 42
Removing this Machine from the Host Machine................................................................................43
Removing this Machine from the Host Machine. (In the case of Inner Finisher only).................................43
Removing this Machine from the Host Machine. (In the case of Inner Finisher and Inner Puncher Unit).... 55
List of Parts....................................................................................................................................... 71
External Cover....................................................................................................................................71
List of Main Unit.................................................................................................................................. 71
List of Solenoids..................................................................................................................................72
List of Motors...................................................................................................................................... 73
List of Sensors/Switches......................................................................................................................74
List of PCBs........................................................................................................................................75
Other Parts.........................................................................................................................................75
External Cover...................................................................................................................................76
Removing the Front Cover Unit............................................................................................................ 76
Removing the Rear Cover....................................................................................................................76
Removing the Delivery Tray.................................................................................................................77
Installing the Delivery Tray...................................................................................................................77
Removing the Tray Guide Cover.......................................................................................................... 78
Main Unit........................................................................................................................................... 80
Removing the Upper Feed Guide Unit.................................................................................................. 80
Removing the Processing Tray Unit......................................................................................................81
Removing the Stapler Unit................................................................................................................... 85
Removing the Staple-free Staple Unit................................................................................................... 86
Solenoids...........................................................................................................................................88
Removing the Paper Trailing Edge Pushing Guide Solenoid(SL1).......................................................... 88
Motor................................................................................................................................................. 89
Removing the Stapler Shift Motor (M7)................................................................................................. 89
Removing the Assist Motor (M5).......................................................................................................... 89
Sensor...............................................................................................................................................91
Removing the Delivery Sensor(PS1).....................................................................................................91
Removing the Disengaging Sensor (PS16)........................................................................................... 91
PCB...................................................................................................................................................92
Removing the Finisher Controller PCB (PCB1)......................................................................................92
Other Parts........................................................................................................................................93
Removing the Return Belt Unit............................................................................................................. 93
Contents
ii

5. Adjustment..................................................................................................... 96
Overview........................................................................................................................................... 97
Adjustment and Functional Setting in Service Mode.............................................................................. 97
Basic Adjustment Items....................................................................................................................... 98
Adjustment Items When Replacing Parts.............................................................................................. 99
Basic Adjustment.............................................................................................................................100
Overview.......................................................................................................................................... 100
Adjusting the Paper Alignment........................................................................................................... 101
Adjusting the Staple Position..............................................................................................................108
Adjustment when Replacing the Parts............................................................................................ 113
Handling Finisher Controller PCB Replacements.................................................................................113
Service Label...................................................................................................................................114
Back-up of Service Mode...................................................................................................................114
Service Label....................................................................................................................................114
6. Troubleshooting...........................................................................................115
Making Initial Checks...................................................................................................................... 116
List of Initial Check Items................................................................................................................... 116
Processing Tray Area......................................................................................................................117
Adjusting the Alignment and the Staple Position..................................................................................117
APPENDICES....................................................................................................119
Service Tools...................................................................................................................................120
Solvents and Oils.............................................................................................................................. 120
Special Tools.................................................................................................................................... 120
General Circuit Diagram..................................................................................................................121
General Circuit Diagram (1/1).............................................................................................................121
Contents
iii

Safety Precautions
Points to Note Before Servicing................................................ 2
Points to Note at Cleaning.........................................................2
Notes on Assembly/Disassembly.............................................. 2
Safety Precautions
1

Points to Note Before Servicing
• At servicing, be sure to turn OFF the power source according to the specified steps and disconnect the power plug.
• Be sure to disconnect the power plug on a regular basis and remove dust and dirt accumulated around the outlet with dry
cloth.
CAUTION:
Leaving the power plug connected for a long time in an environment having a lot of dust, moisture, or oily smoke will
cause a fire. (Because dust accumulated in the surrounding area will absorb moisture and cause an insulation failure)
• Be careful not to be injured by burrs of edges, sharp corners or protrusions.
CAUTION:
Hazardous area such as corners, edges, springs and other sharp sections may be remaining on products. Always be
aware of the presence of hazardous area to avoid injury caused by contacting and/or striking those area, by not over-
concentrating on service work.
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.
CAUTION:
English
CAUTION
DOUBLE POLE/NEUTRAL FUSING
The fuse may be in the neutral, and that the mains shall be disconnected to de-energize the phase conductors.
German
VORSICHT
ZWEIPOLIGE BZW. NEUTRALLEITER-SICHERUNG
Die Sicherung kann sich im Nullleiter befinden und das Hauptnetz muss abgetrennt werden, um die Phasenleiter
stromlos zu machen.
Points to Note when Tightening a Screw
When a thin plates is used in some parts for the light weighting purpose, warn the following.
In the case of a screw hole with a triangle mark near it as shown in the figure below, strongly tightening the screw may damage
or deform the screw hole.
In the case of a screw hole with a triangle mark, take care not to apply too much force when tightening the screw.
Safety Precautions
2

The recommended torque value is shown below as a reference value.
Type of Screws
RS tight W Sems Binding TP
Fastened member Metal Resin Metal Resin Metal Resin Metal Resin
Tightening torque
(N*m)
M4 Approx.
1.6
Approx.
1.6
Approx.
1.6
Approx.
0.8
Approx.
1.6
Approx.
0.8
Approx.
1.6
Approx.
0.8
M3 Approx.
0.8
Approx.
0.8
Approx.
0.6
Approx.
0.6
Approx.
0.6
Approx.
0.6
Approx.
0.6
Approx.
0.6
* For PCB, refer to the tightening torque value of resin (fastened member).
RS tight
Type of Screws
W Sams Binding TP
Safety Precautions
3