Service Manuals, User Guides, Schematic Diagrams or docs for : CANON Copiers GP 405 ServBull ServBullGP405 acc-177
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Service Bulletin COPIER
Issued by Canon Europa N.V.
Model : Finisher-C1 No.: Acc-177
Saddle Finisher-C2 (FF-T01-W-000075-01)
DATE: 08.10.99
Location : FEEDER ASSEMBLY
Subject : PREVENTING GUIDE STOPPER BREAKAGE
Reason : To communicate that the shape of the guide stopper has been changed to prevent it from breaking.
Also, to communicate field measures to take if the stopper breaks in the field.
Details :
If the guide stopper breaks, there are cases where the buffer roller stops the copy paper, and a
stationary jam occurs.
The guide stopper determines the stop position of the flapper, but this stopper breaks as a result of the
repeated opening and closing operation of the flapper. If the stopper breaks, the flapper makes
contact with the buffer roller, and a load is placed on the rotation of the buffer roller. In the worst
case, the rotation of the buffer roller is halted, and a stationary jam occurs. (Fig. 1)
The flapper makes
contact with the buffer
roller.
Buffer roller
Flapper
Stopper
Guide
[When there is a stopper] [When the stopper has broken]
Fig. 1 Feeder assembly
-1/5-
Acc-177
Durability of the guide stopper was improved by strengthening it with the addition of a rib (Fig. 2).
[Old guide] [New guide]
Stopper strengthened by
the addition of a rib
Stopper
Fig. 2
Servicing : Perform the measures below to deal with the previously-mentioned symptoms in the field.
Attach the field measure part STOP, GUIDE (FB4-9693-000), following the procedure shown below,
as a field measure (Fig. 3).
Flapper
Upper cover Rear cover
Guide
(Front
cover [Before attaching]
side)
Flapper
Guide Guide
stopper
Guide
Guide stopper
[After attaching]
Fig. 3 Section to stick the guide stopper
-2/5-
Acc-177
1) Prepare the guide stopper (FB4-9693-000), lint free paper, and alcohol.
2) Turn the main power switch off, and unplug the power supply.
3) Pull the finisher away from the main copier body.
4) Remove the separation tray, and open the upper cover (Fig. 4).
Interrupt tray
Upper cover
(Main body side)
Fig. 4
5) Peel off the paper from the back of the tape which is stuck to the inner side of the guide stopper
and place the tape side on top of the rear cover.
6) Take lever 2, which is on the front cover side, between the fingers of the left hand, and lift up the
buffer roller. Once it is lifted up, hold it in that position (Fig. 5).
Lever 2 Upper cover
Buffer roller cover
(Rear cover side)
(Front cover side)
Buffer roller
(Main body side)
Fig. 5
7) With the right hand, clean out the dirt from the inner side of the guide with lint free paper
dampened with alcohol.
Guide Rear cover
Upper cover Guide
Rear cover
(Main body side)
Buffer roller Clean the inner side
of the guide
Fig. 6
-3/5-
Acc-177
8) With the left hand holding the buffer roller up, open the flapper by pressing down the upper
flapper assembly with the finger in the direction of the delivery tray, and hold it in this position
(Fig. 7).
(Direction of the delivery tray)
Upper part of the flapper
Buffer roller
Fig. 7
9) When sticking the guide stopper to the guide, the protruding section on the inner side of the guide
stopper must be inserted into the square opening on the guide. Therefore, perform the following
operations.
i) Hold the side A of the guide stopper between the fingers, and face the side B toward the square opening
on the guide (Fig. 8).
ii) While taking care that the side A of the guide stopper does not rise causing the guide stopper tape and
the guide to make contact, pass the side B of the guide stopper through the space between the flapper
and the guide, pushing it in the direction of the arrow 1 (Fig. 9) until it stops. After this, slowly lay the
side A onto the guide.
Upper cover
Rear cover
Square opening in the
guide
Upper
cover Flapper
Guide stopper
Protruding
section on inner
side
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