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Service Bulletin
Issued by Canon Europa N.V.
COPIER
Model :
Location :
Subject :
Reason :
Details :
GP605
SLIDE GUIDE (ON ADF PICKUP TRAY)
PREVENTING JAMS WHILE READING AN ORIGINA L
The adhesive used on the leaf spring of the slide guide of the ADF can fail, possibly causing a jam
because of the resulting incorrect detection of the size of an original during reading operation. This
bulletin communicates measures to take as part of servicing work to prevent the problem.
<Symptom>
When copies are made using the ADF, wrong detection of paper size can at times occur during
reading operation, causing jams.
<Cause>
A porti on of the leaf spring of the slide guide (rear) found on the A DF pickup tray can fail against the
upward for c e of the ribs found under the spring, resulting in detachm ent.
<Factory measure>
Tentative Measures
The ribs of the slide guide (used to prevent noise; see the figures below) are shaved off to limit the
stress aga inst t he g lue d por ti o n (sw itc h- o v er o n and a ft er Ma rc h 30, 1999) .
No.:
DATE:
GP605-005 Rev . 1
(FF-T 01-K1-000009-02)
04.06.99
Permanent Measures
In addition to the tentative measures above, the shape of the leaf spring will be modified to prevent
stress on the l ea f spr ing ( see the f ig ur es be lo w; swit ch-over o n and af te r April 13, 1999) .
Leaf spring
The leaf spring is
pushed up by the
ribs.
Ribs used to
prevent noise
Fig. 1
The glue a round here f ails
against the upward force of the
ribs. (The portion i s attached
by hea t ing the adhesiv e .)
Area where the shape will be
changed
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GP605-005 Rev. 1
Servicing :
< Implementing the Measures >
1) Remove the screw, and detach the cover
at the back of the ADF.
2) Free the harness of the pickup tray.
i) Remove the wire saddle.
ii) Remove the tie-wrap.
iii) Disconnect the connector.
iv) Remove the screw, and detach the
grounding wire.
Screw
Fig. 2
Wi r e saddle
Tie-wrap
Screw
Connector
3) Remove the two screws from the pickup
tray, and detach the pickup tray.
Note:
When detaching the pickup tray, pay
attention to its harness.
4) Turn over the pickup tray, and disconnect the
three connectors.
5) Remove the screw, and detach the grounding
wire.
Fig. 3
Screws
Fig. 4
Grounding wire (1 screw)
Connectors
Fig. 5
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6) Remove the four screws, and open the
slide switch cover.
GP605-005 Rev. 1
Screws
Fig. 6
7) Remove the grip ring, and detach the gear.
8) Remove the screw, and detach the guide
retainer.
Gear
Grip ring
Fig. 7
Screw
Guide retainer
9) Remove the two screws, and detach the
indicator LED PCB holder; then, mount it
to the slide guide which has been provided
with the measures.
Screws
Fig. 8
Slide guide
Indicator LED
PCB holder
Fig. 9
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GP605-005 Rev. 1
(p
10) Shift both slide guides inward, and match the teeth as shown (indicated by arrows).
Shift so that the arrow is
between the third and fourth
teeth counting from the right.
Slide guide
Shift so that the arrow is
between the fifth and sixth
teeth counting from the left.
Fig. 10
11) While keeping the teeth matched, set the
gear and mount the grip ring.
Note: Put one transparency between the
gear and the grip ring to allow a gap
(of about 0.3 mm).
12) While paying attention to the routing of
the harness and the positioning block
(used to ma t ch the phase), mount the
guide retainer with a screw.
Note: Take care to avoid trapping the
wire.
Gear
Grip ring
Pay attention to the
spa tial re lationship
hase).
Fig. 11
Screw
Lead the harness out from here.
Fig. 12
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13) Close the slide switch cover, and tighten
the four screws.
Note: At this time, connect one connector
in advance to facilitate the work.
14) Connect all connectors.
GP605-005 Rev. 1
Screws
Connector
Fig. 13
15) While arranging the harness as needed,
set the pickup tray and tighten the two
screws.
16) Free the harness of the pickup tray.
i) Mount the grounding w i re with a screw.
ii) Co nnect the connector.
iii) Fit the tie-wrap.
iv) Fit the harness to the wire saddle, and
lock it in position.
Connector
Fig. 14
Screws
Fig. 15
Wi r e saddle
Tie-wrap
Screw
Connector
Fig. 16
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17) Secure the cover at the rear of the ADF
Affected machines:
Main body:
Classification by level of the ADF
GP605-005 Rev. 1
in place with a screw.
Screw
Fig. 17
PLE00102 and l ater NLE01743 and later PLP00049 and later
QLE00246 and later RLE00040 and later SLE00374 and later
TLE00140 and later ULE00537 and later
Classification label attached to the ratings plate
Tentative measures: 9-mm dia. Brown label
Permanent measures: 9-mm dia. Pink label
ADF Units Affected
YC01647 and later
YD01384 and later
YE00068 and late r
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