Canon AG1 User manual

654321
Cassette Feeding Unit-AG1
Service Manual
Product Outline
Technology
Periodic Servicing
Parts Replacing and Cleaning
Adjustment
Installation
Appendix
June 25, 2014
Revision 0

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.
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
consent of Canon Inc.
© CANON INC. 2014
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. 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.
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 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.

0 Safety Precautions
Notes Before it Works Serving ---------------------------------------------0-2
1 Product Outline
Outline ---------------------------------------------------------------------------1-2
Specication ------------------------------------------------------------------------- 1-2
Names of Parts ----------------------------------------------------------------1-2
External View ----------------------------------------------------------------------- 1-2
Cross-section View ---------------------------------------------------------------- 1-3
2 Technology
Basic conguration -----------------------------------------------------------2-2
Parts Conguration ---------------------------------------------------------------- 2-2
Paper Path --------------------------------------------------------------------------- 2-3
Controls --------------------------------------------------------------------------2-4
Overview ----------------------------------------------------------------------------- 2-4
Jam Detection --------------------------------------------------------------------- 2-11
Work of Service -------------------------------------------------------------------2-12
3 Periodic Servicing
Periodic Servicing List -------------------------------------------------------3-2
4 Parts Replacing and Cleaning
List of Parts ---------------------------------------------------------------------4-2
External View ----------------------------------------------------------------------- 4-2
List of Main Unit -------------------------------------------------------------------- 4-3
Electrical Components ------------------------------------------------------------ 4-3
List of Connectors ----------------------------------------------------------------- 4-5
Disassembly/Assembly ------------------------------------------------------4-6
Layout Drawing --------------------------------------------------------------------- 4-6
Disconnecting from the Host Machine ---------------------------------------- 4-7
Contents Removing the Rear Cover ------------------------------------------------------- 4-9
Removing the Cassette Receptacle ------------------------------------------- 4-9
Removing the Vertical Path Unit ----------------------------------------------4-10
Removing the Cassette 2 Pickup Roller /
Cassette 2 Separation Roller / Cassette 2 Feed Roller -----------------4-13
Removing the Cassette 2 Pickup Unit ---------------------------------------4-16
Removing the Cassette 2 Pickup Motor (M102) --------------------------4-18
Removing the Cassette 2 Lifter Motor (M104)-----------------------------4-18
Removing the Cassette 2 Pullout Motor (M106) --------------------------4-19
Removing the Cassette 2 Pickup Drive Unit -------------------------------4-19
Removing the Cassette 2 Auto Close Unit ---------------------------------4-20
Removing the Cassette Module Controller PCB --------------------------4-21
5 Adjustment
Pickup Feed System ---------------------------------------------------------5-2
Setting method when the size detection patterns are overlapped ----- 5-2
Cassette Left Edge Margin Adjustment
(1st side; Mechanical Adjsutment) --------------------------------------------- 5-3
Cassette Left Edge Margin Adjustment
(1st side; Software Adjsutment) ------------------------------------------------ 5-5
Cassette Left Edge Margin Adjustment
(2nd side; Software Adjsutment) ----------------------------------------------- 5-6
Lead-edge Margin Adjustment (1st side/normal paper) ------------------ 5-6
Lead-edge Margin Adjustment (2nd side) ----------------------------------- 5-7
6 Installation
Installing this Equipment ----------------------------------------------------6-2
Appendix
Service Tools --------------------------------------------------------------------- II
Special Tools --------------------------------------------------------------------------- II
Solvents and Oils --------------------------------------------------------------------- II
General Circuit Diagram -------------------------------------------------------III

■Notes Before it Works Serving
Safety Precautions

0-2
0-2
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 (of the host machine) when downloading is under way.
Turning off the main power switch while downloading is under way can disable the
machine.

1
1Product Outline
Product Outline
■Outline
■Names of Parts

1
1
1-2
1-2
Product Outline > Names of Parts > External View
Product Outline > Names of Parts > External View
Outline
Specication
Item Description
Paper storage method Front loading method
Pickup method Retard separation method
Paper stack capacity 550 sheets (80 g/m2)
Paper feed reference Center reference
Paper size Width: 98.4 mm to 216.0 mm
Length: 148.0 mm to 355.6 mm
A4-R, A5-R, B5-R, LGL, LTR-R, STMT-R, EXEC-R, 16K, special
standard-size
Paper grammage 60 g/m2 to 163 g/m2
Paper size switch By the user
Duplexing method Through path
T-1-1
Names of Parts
External View
[1]
[2]
[3]
[4]
No. Parts Name
[1] Cassette Front Upper Cover
[2] Upper Tray Cover
[3] Lower Tray Cover
[4] Left Over
F-1-1
T-1-2

1
1
1-3
1-3
Product Outline > Names of Parts > Cross-section View
Product Outline > Names of Parts > Cross-section View
[6]
[7]
[5]
[8]
[9]
No. Parts Name
[5] Connector Cover
[6] Rear Cover
[7] Right Lower Cover
[8] Cassette Right Cover
[9] Right front cover
F-1-2
T-1-3
Cross-section View
[1]
[2]
[4]
[3]
[5]
No. Parts Name
[1] Cassette 2 pickup Roller
[2] Cassette 2 vertical path Roller
[3] Cassette 2 feed Roller
[4] Cassette 2 separation Roller
[5] Cassette 2 Lifting Plate
F-1-3
T-1-4

2
2Technology
Technology
■Basic conguration
■Controls

2
2
2-2
2-2
Technology > Basic conguration > Parts Conguration > Sensors Layout Drawing
Technology > Basic conguration > Parts Conguration > Sensors Layout Drawing
Basic conguration
Parts Conguration
■Rollers Layout drawing
[1]
[2]
[4]
[3]
No. Parts Name
[1] Cassette 2 pickup Roller
[2] Cassette 2 vertical path Roller
[3] Cassette 2 feed Roller
[4] Cassette 2 separation Roller
F-2-1
T-2-1
■Sensors Layout Drawing
PS104
SW101
PS110
SW104
PS101
PS107
PS101 Cassette 2 Pullout Sensor SW101 Cassette 2 Size Detection Switch
PS104 Cassette 2 Paper Sensor SW104 Cassette Right Door Open/Close
Detection Switch
PS107 Cassette 2 Paper Surface Sensor
PS110 Cassette 2 Paper Level Sensor
F-2-2

2
2
2-3
2-3
Technology > Basic conguration > Paper Path
Technology > Basic conguration > Paper Path
■Route of Drive
M102
M106
M104
M102 Cassette 2 pickup Motor
M104 Cassette 2 Lifter Motor
M106 Cassette 2 Pullout Motor
F-2-3
Paper Path
Cassette 2
F-2-4

2
2
2-4
2-4
Technology > Controls > Overview
Technology > Controls > Overview
Controls
Overview
Paper inside a cassette is lifted up by the Lifter Plate.
The Lifter Plate rises by the rotation of the Cassette 2 Lifter Motor (M104). When the Pickup
Roller comes in contact with the surface of paper, paper is picked up by rotation of the
Cassette 2 pickup Motor (M102), and only a single sheet of paper is moved to the feed path
by the Cassette Feed Roller and the Cassette Separation Roller. Then, it is moved to the Pre-
registration Roller by the rotation of the Cassette 2 Pullout Motor (M106).
The Cassette 2 Pickup Roller, the Cassette 2 Feed Roller and Cassette 2 Separation Roller
are driven by the Cassette 2 Pickup Motor (M102) while the Cassette 2 Vertical Path Roller is
moved by the rotation of the Cassette 2 Pullout Motor (M106).
M102
M106
M104
[1]
[2]
[4]
[3]
[5]
PS104
PS107
No. Parts Name
[1] Cassette 2 pickup Roller
[2] Cassette 2 vertical path Roller
[3] Cassette 2 feed Roller
[4] Cassette 2 separation Roller
[5] Cassette 2 Lifting Plate
F-2-5
T-2-2

2
2
2-5
2-5
Technology > Controls > Overview > Paper Size Detection Control
Technology > Controls > Overview > Paper Size Detection Control
■Paper Size Detection Control
The paper size in the cassette is automatically detected by the "Cassette Size Switch" after
the position of the Guide Plate is adjusted and the cassette is installed in the host machine.
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 3
microswitches, and the length is detected in accordance with the combination of ON/OFF.
(When the switch is pressed: ON) For standard size paper, any of AB conguration, inch
conguration, or AK conguration can be used. However, distinction between A5-R and
STMT-R should be made manually on the check screen.
Distinction between EXEC-R and 16K-R, and between LTR-R and 16K-R is automatically
made according to the country setting.
*: Whether to select A5-R or STMT-R can be registered in the user mode setting.
Settings/Registration > Preferences > Paper Settings > A5R/STMTR Paper Selection
Setting value per cassette: A5-R. STMT-R
Cassette Size Switch
Length Detection
Size Length 1 2 3
A5-R 210.0 ON OFF OFF
STMT-R 215.9 ON OFF OFF
B5-R 257.0 ON OFF ON
EXEC-R 267.0 ON ON ON
16K-R 270.0 ON ON ON
ON ON OFF
LTR-R 279.4 ON ON OFF
OFF ON OFF
A4-R 297.0 OFF ON ON
LGL 355.6 OFF OFF ON
(No cassette) - OFF OFF OFF
F-2-6
T-2-3
[7] LGL
[6] A4-R
[5] LTR-R
[2] B5-R
A5-R
[1]
STMT-R
EXEC-R
[3]
16K-R
16K-R
[4]
LTR-R
F-2-7

2
2
2-6
2-6
Technology > Controls > Overview > Paper Size Detection Control
Technology > Controls > Overview > Paper Size Detection Control
Paper size*1 All modes AB conguration Inch-conguration AK conguration
A5-R 210.0 [1] [1] - [1]
STMT-R 215.9 - [1] -
B5-R 257.0 [2] [2] Paper load error Paper load error
EXEC-R 267.0 [3] Paper load error [3] -
16K-R 270.0 [3] Paper load error - [3]
[4] Paper load error - [4]
LTR-R 279.4 [4] Paper load error [4] -
[5] Paper load error [5] Paper load error
A4-R 297.0 [6] [6] Paper load error [6]
LGL 355.6 [7] Paper load error [7] Paper load error
(No cassette)*2 - [8] - - -
*1 Paper sizes can be registered in user mode settings.
[Settings/Registration] > [Preferences] > [Paper Settings] > [Paper Type Settings]
*2 Presence of the cassette is detected when the size switch is pushed.
(If no switch is pushed, it is judged as no cassette.)
T-2-4
Guide Plate
Link Arm
Size Plate
Cassette
Size Switch
F-2-8

2
2
2-7
2-7
Technology > Controls > Overview > Paper Level Detection Control
Technology > Controls > Overview > Paper Level Detection Control
■Paper Level Detection Control
Paper level inside the cassette is detected by the sensors shown in the following table.
The paper level in the cassette is detected by the Cassette Lifter Motor, Cassette Paper
Sensor, Cassette Paper Surface Sensor, and Cassette Paper Level Sensor.
Cassette Paper
Sensor
Cassette Paper
Surface Sensor
Cassette Paper
Level Sensor Paper level
Display on
the Control
Panel
OFF ON OFF* 100% to 50%*
OFF ON OFF Approx. 50% to approx. 50
sheets
OFF ON ON Approx. 50 sheets or less
The control that switches the paper level display on the Control Panel is as follows:
• From 3 bars to 2 bars on the Control Panel:
The paper level is detected based on the time for which Cassette Lifter Motor is
continuously turned ON. Or, it is detected based on the time from when the Cassette Paper
Sensor is turned ON to when the Cassette Paper Surface Sensor is turned ON.
The paper level during paper feed is detected based on the number of times the Cassette
Lifter Plate is lifted up.
Related Service Mode
*: The paper level in the cassette is displayed by executing the following service mode.
You can adjust the timing of switching the scale from "3" to "2".
Lv.2) COPIER > ADJUST > CST-ADJ > CST-VLMX (Threshold adjustment for detecting
the level in the cassette X)
X indicates the cassette number (1 to 4).
• From 2 bars to 1 bar on the Control Panel:
The Control Panel switches to display 1 bar when the Cassette Paper Level Sensor is
turned ON.
T-2-5
Lifting Plate
Detection Lever
Paper Detection Lever
Lifting Plate
Lifter Gear
Paper Level
Detection Lever
Cassette
Lifter Motor
Cassette Paper
Level Sensor
Cassette Paper
Surface Sensor
Cassette
Paper Sensor
F-2-9

2
2
2-8
2-8
Technology > Controls > Overview > Paper Level Detection Control
Technology > Controls > Overview > Paper Level Detection Control
OFF
OFF
OFF
OFF
OFF
OFF
Cassette
Paper Sensor
Paper
Paper
Cassette Paper
Surface Sensor
Cassette Paper
Level Sensor
F-2-10
OFF
OFF
ON
Cassette
Paper Sensor
Paper
Paper
Cassette Paper
Surface Sensor
Cassette Paper
Level Sensor
F-2-11

2
2
2-9
2-9
Technology > Controls > Overview > Non-stop Registration Control
Technology > Controls > Overview > Non-stop Registration Control
■Paper Detection Control
Paper is detected by the Cassette Size Switch, Cassette Paper Surface Sensor and Cassette
Paper Sensor.
The absence of paper is notied when the Cassette Paper Sensor is turned ON at the time
the Cassette Size Switch is turned ON (it is detected that the Cassette is in the host machine)
and the Cassette Paper Surface Sensor is turned OFF (the Lifter Plate is raised to the pickup
position).
Lifting Plate
Detection Lever
Paper Detection Lever
Lifting Plate
Lifter Gear
Paper Level
Detection Lever
Cassette
Lifter Motor
Cassette Paper
Level Sensor
Cassette Paper
Surface Sensor
Cassette
Paper Sensor
■Lifter Control
●When Cassette is set
When the cassette is set, the Cassette Lifter Motor rotates to raise the Lifter Plate so that the
paper is raised to the position to be picked up.
F-2-12
■Registration Control
It is a control to align paper and image on the ITB at a specied timing.
Based on the leading edge detection by the Pre-Registration Sensor (PS04), the following 2
controls are used:
• Non-stop registration control
• Stop registration control
Basically, the non-stop registration control is used.
However, if paper passes the Pre-registration Sensor (PS04) earlier than a specied timing,
stop registration control is executed to align paper and image on the ITB at the specied
timing.
Meanwhile, if the paper passes the Pre-registration Sensor (PS04) signicantly later than a
specied timing, paper and image on the ITB cannot be aligned at the specied timing, and
therefore jam is generated. (Jam code: 0A90)
Sensor ON
(early)
Sensor ON
(late)
Jam occurs
Paper feed
Sensor
detection
timing
Non-stop Registration Control
Decelerated Accelerated
Stop Registration
Control
Sensor ON
(ideal)
■Non-stop Registration Control
It is a control to align paper and image on the ITB at a specied timing by increasing or
decreasing the paper feed speed.
Since paper is not stopped at the registration position, paper interval can be shortened and
productivity can be improved.
F-2-13

2
2
2-10
2-10
Technology > Controls > Overview > Stop Registration Control
Technology > Controls > Overview > Stop Registration Control
■Stop Registration Control
It is a control to stop paper at the registration position, align paper and image on the ITB at a
specied timing, and then resume paper feed.
Stop registration control stops the Pre-registration Roller. Paper fed by the Pre-registration
Roller after being picked up from the cassette generates an arch due to being pushed against
the Registration Roller which has been stopped. This control stops paper while an arch is still
generated to align paper and image on ITB at a specied timing, aligns paper and image on
the ITB at a specied timing, and then resumes paper feed.
Registration
Roller
Image
PS04
[1]
[2]
[4]
[3]
Cassette 2
F-2-14

2
2
2-11
2-11
Technology > Controls > Jam Detection > List of Jam Codes
Technology > Controls > Jam Detection > List of Jam Codes
■Size Mismatch Detection Control
Whether the size is mismatched is determined by paper length.
The time a paper passes through the Pre-Registration Sensor (PS04) is converted into
distance. The converted distance and the paper size detected by the Cassette Size Detection
Switch are compared, and if there is a difference of 20 mm or more between the two, it is
judged that the size is mismatched.
In this case, paper is not delivered, but stopped instead with a jam detected. (Jam code:
0D91)
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
00 0102 Delay Cassette 2 Pullout Sensor PS101
00 0202 Stationary Cassette 2 Pullout Sensor PS101
00 0A02 Power ON Cassette 2 Pullout Sensor PS101
00 0A90 Power ON Pre-Registration Sensor PS4
00 0D91 Size Error Wrong size (small) -
T-2-6