Table of Contents
Advertisement
ELECTRICAL COMPONENT DEFECTS
Component
(Symbol)
Paper feed
sensor 2
(I/O board)
Paper near-end
sensor 1
(High voltage
Paper near-end
sensor 2
(I/O board)
Paper overflow
sensor
(I/O board)
Platen cover
sensor
(Scanner I/O
Registration
sensor
(High voltage
Scanner HP
sensor
Synchronization
detector
T/B waste toner
bottle full
(I/O board)
sensor
Temperature/hu
midity sensor
Fusing
entrance
(I/O board)
sensor
Transfer belt
sensor
(I/O board)
NOTE: An SC condition occurs only when a new PCU is being installed in the
machine. During copying, if the ID sensor fails, the image density will be
changed.
CN
Condition
Open
340
Shorted
406
Open
Shorted
supply)
Open
308
Shorted
Open
324
Shorted
219
Open
Shorted
board)
Open
405
supply)
Shorted
Open
240
(SBU)
Shorted
Open
503
(LDB)
Shorted
Open
307
Shorted
259
Open
(BICU)
Shorted
Open
307
Shorted
Open
307
Shorted
Symptom
A paper jam is detected when paper is fed; and
the paper jam is not cleared when the paper is
removed.
A paper jam is detected when paper is fed; and
the paper jam is not cleared when the paper is
removed. Or, a paper jam is detected before
paper is fed.
Paper near end is detected when the tray is full.
Paper full is detected when the tray is almost
emptily.
Paper end is detected when the tray is not
empty.
• Paper full is detected when the tray is almost
empty.
• Paper near-end is detected when the tray is
full.
Paper overflow is not detected when the paper
exit tray is full.
Paper overflow is detected when the paper exit
tray is not full.
The original size is not correctly detected.
No symptom
A paper jam is detected when paper is fed; and
the paper jam is not cleared when the paper is
removed.
• A paper jam is detected when paper is fed;
and the paper jam is not cleared when the
paper is removed.
• A paper jam is detected before paper is fed.
SC120 is displayed.
The scanner motor tries to operate for about 40
seconds before SC122 is displayed.
SC220 is displayed.
The machine does not respond.
SC220 is displayed.
Bottle full is not detected when the bottle is full.
Bottle full is detected when the bottle is not full.
SC460 is displayed.
SC460 is displayed.
A paper jam is not detected when paper is fed.
A paper jam is detected when paper is not fed.
A paper jam is not detected when paper is fed.
A paper jam is detected when paper is not fed.
4-24
10 February 2005
Advertisement
Table of Contents
