Canon Puncher Unit-BF1 User manual

4321
Puncher Unit-BF1/ -BG1/ -BH1
Service Manual
March 10, 2009
Revision 0
Product Outline
Function
Parts Replacing and Cleaning
Installation
Appendix

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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
written consent of Canon Inc.
(C) CANON INC. 2007
Caution
Use of this manual should be strictly supervised to avoid disclosure of confidential
information.

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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 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.

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Contents
Safety Precautions 0-1
Notes Before it Works Serving---------------------------------------------0-2
Product Outline 1-1
Features-------------------------------------------------------------------------1-2
High-accuracy Punch Mode----------------------------------------------------- 1-2
Compact Design ------------------------------------------------------------------- 1-2
Specications ------------------------------------------------------------------1-3
Names of Parts----------------------------------------------------------------1-4
External View ----------------------------------------------------------------------- 1-4
Cross Section----------------------------------------------------------------------- 1-4
Technology 2-1
Basic Conguration-----------------------------------------------------------2-2
Functional Conguration --------------------------------------------------------- 2-2
Overview of Electrical Circuitry------------------------------------------------- 2-2
Component Conguration ------------------------------------------------------- 2-3
Drive Conguration---------------------------------------------------------------- 2-3
Basic Operation Outline---------------------------------------------------------- 2-4
Controls--------------------------------------------------------------------------2-5
Overview ----------------------------------------------------------------------------- 2-5
Construction of the Control System------------------------------------------- 2-6
Punch operation-------------------------------------------------------------------- 2-7
Horizontal registration operation----------------------------------------------- 2-8
Servicing Work --------------------------------------------------------------------2-10
Parts Replacement and Cleaning Procedure
3-1 Removing this Equipment---------------------------------------------------3-2
Removing from the nisher 3-2
Removing from the saddle nisher 3-5
List of Parts---------------------------------------------------------------------3-8
Motors -------------------------------------------------------------------------------- 3-8
Sensors------------------------------------------------------------------------------- 3-8
PCBs---------------------------------------------------------------------------------- 3-9
Installation 4-1
Checking the Supplied Parts-----------------------------------------------4-2
Installation Procedure--------------------------------------------------------4-3
When attaching to the finisher (without a
saddle unit) 4-3
Attaching the Labels 4-8
Operation Check 4-9
When attaching to the saddle nisher4-10
Attaching the Label 4-14
Operation Check
Appendix5-1
General Circuit Diagram-----------------------------------------------------5-2
General Circuit Diagram 5-2

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Safety Precautions
Notes Before it Works Serving
■

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Notes Before it Works Serving
Caution:
When servicing, be sure to follow the specied procedure. Before starting the service
work, be sure to turn off the host machine and nisher and unplug the nisher.
Caution:
Never turn off the host machine or finisher during downloading. If you do so, this
equipment may become inoperative.

1
1
Product Outline
Features
Specications
Names of Parts
■
■
■

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Features
High-accuracy Punch Mode
Allows setting of punch hole position accuracy by selecting a user mode (normal mode or
high-accuracy mode).
Compact Design
Installable in the nisher, requiring a small room.

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Specications
Punching method Spinning punching (Sequential punch-ing)
Paper weight 52 g/m2 to 256 g/m2
Paper size <2 or 3 holes (Puncher Unit-BF1)>
A3, A4, 11" x 17", LGL*1, LTR, LTRR*1, EXEC
*1: 2 holes only
<2 or 4 holes (Puncher Unit-BG1)>
A3, B4, A4, A4R, B5, B5R, 11" x 17", LGL, LTR, LTRR, EXEC,
EXECR
<4 holes (Puncher Unit-BH1)>
A3, A4
Punched hole diameter 2 or 3 holes: 8.0 mm
2 or 4 holes: 6.5 mm
4 holes: 6.5 mm
Panch waste case
capacity
2 or 3 holes: 4,500 sheets or more
2 or 4 holes: 5,000 sheets or more
4 holes: 5,000 sheets or more
Dimensions 95(W) x 715(D) x 392 (H) mm
Weight Approx. 4 kg
Power supply Powered from nisher

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Names of Parts
External View
Panch waste case
Punch slide motor
Punch motor
Jam operation lever
Punch cover
F-1-1F-1-1
Cross Section
Photosensor PCB
Panch waste case
Punch blade
Panch waste full detection PCB
LED PCB
Punch blade up/down support pin
Rack gear
Dies
F-1-2F-1-2

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Technology
Basic Conguration
Controls
■
■

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Basic Conguration
Functional Conguration
This equipment mainly consists of a punch block, punch slide block, and punch waste case
block.
Punch block
[1] Makes punch holes at the rear end of paper.
Punch slide
block [2] Moves the punch block to the punching position (rear end of paper) according to the paper size.
Punch waste
case block
[3]
Collects the punch waste generated when punch holes are made at the rear
end of paper.
MEMO:
This equipment does not incorporate a microcomputer. It is controlled by the finisher
controller PCB incorporated in the nisher.
1. Punch block
3. Panch waste case block 2. Punch slide block
F-2-1F-2-1
Overview of Electrical Circuitry
Electric control of this equipment is performed by the nisher (nisher controller PCB) and
puncher driver PCB.
Finisher
controller PCB
Motors
Sensors
Puncher driver PCB
Motor driver
F-2-2F-2-2

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Component Conguration
Sensor Layout
Only the optical sensors on the feed path are shown below.
空
Photosensor PCB
(PT1, PT2, PT3, PT4, PT5)
LED PCB
(LED1, LED2, LED3, LED4, LED5)
空
■
F-2-3F-2-3
Drive Conguration
M102
M101
M101: Punch slide motor M102: Punch motor
F-2-4F-2-4

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Basic Operation Outline
This equipment makes punch holes at the rear end of paper.
This equipment is optionally available and installed in the feed path inside the nisher.
The paper fed to the punch block stops at the punching position temporarily. After this, the
rack gear is driven back and forth to move the punch blades vertically, making punch holes.
These operations are controlled by the nisher controller PCB. Every part of the puncher is
driven by the puncher driver PCB.
F-2-5F-2-5

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Controls
Overview
This unit is located in the feed path inside the nisher and sequentially punches holes once
the media stops.
The media loaded from the host machine is fed by the inlet roller and feed roller of the
finisher. When the trailing edge of the media reaches a prescribed location, the media is
stopped for a moment and punched at the trailing edge.
The name and role of motors and sensors used for punching are shown below.
Motor Function Reference
Punch slide motor (M101) Drives the punch slide unit. -
Punch motor (M102) Drives the punch unit. -
Motor Function Reference
Horizontal registration HP
sensor (S101) Detects the punch slide unit home position. -
Punch position sensor (S102) Detects the punch blade position. -
Punch 2-/3-hole sensor
(S103) Detects the punch hole change. -
Punch HP sensor (S104) Detects the punch blade home position. -
Punch motor clock sensor
(S105) Detects the punch motor clock. -
Inlet sensor (S106) Detects the feeding of media. -
Punch waste full detection
sensor (LED1, PT1(PCB2))
Detects when punch waste is full. -
Horizontal registration sensor
(LED1 ~ LED5(PCB3)/PT1 ~
PT5(PCB4))
Detects the media far side edge position. -
Punch motor (M102)
Punch slide motor
(M101)
Puncher driver
PCB (PCB1)
Panch waste full detection
PCB (PCB2)
LED PCB (PCB3)
Photosensor PCB (PCB4)
Inlet sensor (S106)
Punch HP sensor (S104)
Punch position sensor (S102)
Punch 2-/3-hole sensor (S103) Horizontal registration
HP sensor (S101)
Punch motor clock sensor (S105)
F-2-6F-2-6

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Construction of the Control System
The puncher unit consists of a die and hole puncher (punch blade).
The punch blade is driven by the punch motor (M102). The punch motor (M102) drives the
rack gear back and forth. This moves the punch blade up and down with the punch blade up/
down support pin to perform punching.
The home position of the punch blade is detected by Punch 2-/3-hole sensor (S103) and
punch HP sensor (S104), and the lowering position of the punch blade is detected by the
punch position sensor (S102).
The punch motor (M102) is a DC motor. In order to accurately stop the punch motor (M102)
at home position, the punch motor clock sensor (S105) counts the prescribed number of
clocks and stops the punch motor.
There is an inlet sensor (S106) at the entrance of the puncher unit to detect the leading
and trailing edge of the media. The inlet media feed path of the puncher unit has 5 photo
receiving transistors (photosensor PCB) on the upper side and ve sets of LEDs (LED PCB)
on the lower side to function as 5 sensors. These are horizontal registration sensor used to
detect the media far side position to determine the position to punch holes.
The punch motor, punch unit, and above sensors form the punch slide unit which moves back
and forth according to the media size. The back and forth movement is driven by the punch
slide motor (M101).
The home position of the punch slide unit is detected by the horizontal registration HP sensor
(S101). The punch slide motor (M101) is a 2 phase stepping motor.
Punch motor and punch slide motor are driven by the puncher driver PCB with control signal
from the nisher controller PCB.
The punch waste generated by punching operation is collected in the punch waste case. The
lling of punch waste is detected by a reective type sensor (LED1/PT1 on punch waste full
detection PCB).
Rack gear
Hole puncher (punch blade)
Hole puncher (punch blade)
Dies
Punch slide unit
Puncher base
F-2-7F-2-7

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Punch operation
The hole puncher is driven by the punch motor (M102). The home position of the hole
puncher is detected by the punch position sensor (S102) and punch HP sensor (S104). Home
position is reached when the two sensors both detect the sensor ag.
Punch operation is performed by driving the rack gear back and forth with the punch motor
(M102) and lifting the hole puncher through the punch lifter pin. The rack gear has sensor
ags and the punch operation is detected by the combination of these sensor ags and 3
sensors (punch position sensor (S102), punch 2-/3-hole sensor (S103), and punch HP sensor
(S104)).
The items controlled by the combination of sensor ags and sensors are shown below.
If 2 hole type/2 hole type Puncher Unit-BF1/2 hole type Puncher Unit-BG1/Puncher Unit-
BH1.
Hole puncher condition Punch HP sensor
(S104) Punch position sensor (S102) Punch 2-/3-hole sensor (S103)
Home position
(raised
position)
Hole
punching
operation;
1 cycle
ON ON OFF
Lowered
position OFF OFF OFF
Raised
position ON OFF OFF
If 3 hole type Puncher Unit-BF1/4 hole type Puncher Unit-BG1. The rack gear of the
puncher unit that punches two types of holes is driven back and forth from the home
position in the range opposite to the above.
Hole puncher condition Punch HP sensor
(S104) Punch position sensor (S102) Punch 2-/3-hole sensor (S103)
Home position
(raised
position)
Hole
punching
operation;
1 cycle
ON ON OFF
Lowered
position OFF ON ON
Raised
position ON OFF ON
•
•
Hole puncher (punch blade)
Punch blade up/down
support pin
Dies
Rack gear
Sensor flag
S104
S102 S103
F-2-8F-2-8