Service Manuals, User Guides, Schematic Diagrams or docs for : CANON Copiers GP 605 ServBull ServBullGP605 gp605-06
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Service Bulletin COPIER
Issued by Canon Europa N.V.
Model : GP605 No.: GP605-006
(FF-T01-K1-000014-01)
DATE: 07.05.99
Location : DEVELOPER
Subject : DEVELOPER CAUSING LIGHT OR COMPLETELY BLANK IMAGE
Reason : To communicate procedures for countermeasures regarding the possibility of light or completely blank
image occurring due to scraping of the developer washer which causes electrical leaks.
Details :
Light or completely blank image sometimes occur depending on the workload in terms of the copy
volume achieved to date.
A washer which has been added (to the space between the electrode positioning plate and the
developer sleeve) as a countermeasure for preventing noise may scrape off over a period of time, and
then the broken fragments falling into the die-cast section of the main unit could result in electrical
leaks.
Temporary countermeasure: Remove the washer which has been used to prevent noise.
* If there is a space of 0.2mm between the electrode positioning plate and the developer sleeve,
noise will not occur even upon removing the washer.
Servicing : < Procedure >
1) Remove the screw. Positioning plate
2) Remove the electrode positioning plate.
3) Remove the washer.
4) Clean the pressure roller.
Caution: There can be recurrence of the
problem for developers which have
had light or completely blank
image occurring, and for this
reason replace the pressure roller.
Pressure roller Screw
(FS5-6574)
Positioning plate
Washer
Fig. 1
-1/2-
GP605-006
5) Insert the 0.2mm spacer (for
example, OHP sheets of about
0.2mm thickness) and place the
electrode positioning plate.
6) Tighten the screw.
* Since there is a magnet in the
developer sleeve roller, tighten
the screw at the natural position
without going against the effect
of the magnet. Screw
Spacer Positioning plate
(0.2mm)
Fig. 2
Caution: In attaching the electrode positioning plate, exercise caution not to raise it up or bend it.
OK NG
Positioning plate Positioning plate
Be careful not to raise
Fig. 3 it up or bend it.
Affected machines:
Affected machines
PLE00027 PLE00102
NLE00848 NLE01858
PLP00007 PLP00048
QLE0052 QLE00245
RLE00017 RLE00039
SLE00235 SLE00371
TLE00082 TLE00139
ULE00362 ULE00536
A round yellow label has been attached to the outside of boxes for modified machines.
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