Canon FaxPhone L90, Руководство по обслуживанию

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Chapter 5
5-2
Delivery Stationary Jam
The paper leading edge sensor goes off, but the delivery sensor does not
go on within a specific period of time.
Wrap Jam
The delivery sensor goes on, but it goes off before a specific period of
time passes.
Initial Jam
The paper leading edge sensor or the delivery sensor goes on while the
main motor is starting to rotate.
Cover Open Jam
The machine identifies a condition in which the Cartridge cover is opened
while it is moving paper.
5.2.2 Delay Jams
5.2.2.1 Pickup Delay Jam
0018-4904
The CPU executes pickup operation twice if the paper leading edge sensor
(PS801) does not detect the leading edge of print paper within about 1.4 sec
after the pickup solenoid (SL1) goes on.
Thereafter, if the paper leading edge sensor (PS801) does not detect the lead-
ing edge of print paper within about 1.4 sec, the machine will assume the
condition to indicate a pickup delay jam.
5.2.2.2 Delivery Delay Jam
0018-4905
The CPU will assume the presence of a delivery delay jam if the delivery
sensor (PS803) does not detect the leading edge of print paper about 1.8 sec
after the paper leading edge sensor (PS801) has detected the leading edge of
print paper.
5.2.3 Stationary Jams
5.2.3.1 Pickup Stationary Jam
0018-4906
The CPU will detect the presence of a pickup stationary jam if the trailing
edge of print paper is not detected about 4.6 sec after the paper leading edge
sensor (PS801) has detected the leading edge of print paper.
Moreover, it will also assume the presence of a pickup stationary jam if the
paper width sensor (PS802) does not detect the trailing edge of paper within
200 msec after the paper width sensor (PS802) has detected the leading edge
of paper and the paper leading edge sensor (PS801) has detected the trailing
edge of paper.
5.2.3.2 Delivery Stationary Jam
0018-4907
The CPU will assume the presence of a delivery stationary jam if the delivery
sensor (PS803) does snot detect the leading edge of print paper during a pe-
riod of about 2.0 sec after the paper leading edge sensor (PS801) has detected
the trailing edge of print paper.
5.2.4 Other Jams
5.2.4.1 Fixing Wrap Jam
0018-4908
The CPU will assume that paper has wrap jam if the delivery sensor (PS803)
does no detect the leading edge of paper within about 1.3 sec after the deliv-
ery sensor (PS803) has detected the leading edge of print paper and then
about 1.3 sec after the paper leading edge sensor (PS801) has detected the
leading edge of print paper.
5.2.4.2 Initial Jam
0018-4909
The CPU will identify a residual jam when the paper leading edge sensor
(PS801) or the delivery sensor (PS803) detects print paper at the start of in-
itial rotation.
5.2.4.3 Cover Open Jam
0018-4910
The CPU will identify a cover open jam if the leading edge sensor (PS801)
or the delivery sensor (PS803) detects print paper when the door is identified
as being open.
5.3 Parts Replacement Procedure
5.3.1 Pickup Unit
5.3.1.1 Preparation for Removing the Paper Pickup Unit
0018-4185
1) Remove the document feed tray and the paper tray cover.
(page 7-2)
Ref-
erence[Removing the Document Feed Tray and the Paper Tray Cover]
2) Detach the right cover.
(page 7-2)
Reference[Detaching the Right Cov-
er]
3) Detach the left cover.
(page 7-2)
Reference[Detaching the Left Cover]
4) Detach the rear cover.
(page 7-1)
Reference[Detaching the Rear Cover]
5) Detach the cartridge cover.
(page 7-3)
Reference[Detaching the Car-
tridge Cover]
6) Remove the control panel unit.
(page 7-4)
Rference[Removing the Con-
trol Panel Unit]
5.3.1.2 Removing the Paper Pickup Unit
0018-4186
1) Remove the clamp [1] to free the connector [2].
F-5-2
2) Disconnect the terminal [1].
F-5-3
3) Disconnect the 5 connectors [1] and free the harness [3] from the cable
guide [2].
F-5-4
4) Remove the 6 screws [1] to remove the paper pickup unit [2].
[2] [1]
[1]
[3]
[1]
[2] [1]