Table of Contents
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June 10th, 1997
7.6. ELECTRICAL COMPONENT DEFECTS
7.6.1. Defective Sensor Table
Sensor
ADF document sensor
ADF scan line sensor
ADF cover switch
Book scanner home posi-
tion sensor
Platen cover sensor
Interlock switches
Registration sensor
Fusing exit sensor
Bypass feed sensor
Toner end sensor
Paper size sensor - Stand-
ard cassette
Paper end sensor - Stand-
ard cassette
Paper size sensor - op-
tional cassette
ELECTRICAL COMPONENT DEFECTS
Status
ON
"CLEAR ORIGINAL" is displayed at power on.
"SET DOCUMENT" is still displayed after a
OFF
document is placed in the feeder.
ON
"CLEAR ORIGINAL" is displayed at power-up.
"CLEAR ORIGINAL" is displayed soon after
OFF
the start of copying.
No error message appears if the cover is
ON
opened.
OFF
"CLOSE COVER" is displayed at power on.
SC code 7-71 is displayed soon after starting
ON
a copy operation. (Error code 9-11)
SC code 7-71 is displayed soon after power
OFF
on. (Error code 9-11)
ON
ADF does not work.
(Open)
The Automatic Paper Select function does not
OFF
work correctly. The original size is not reset
(Close)
even if an original of a different size is placed
under the platen cover.
There is no alarm on opening the cover, and
ON
"CLOSE COVER" is not displayed.
OFF
"CLOSE COVER" is displayed at power on.
ON
"CLEAR COPY" is displayed at power on.
"CLEAR COPY" is displayed after the start of
OFF
copying.
"CLEAR COPY" is displayed after the
ON
automatic reset timer expires.
OFF
Bypass feed cannot be used.
ON
"ADD TONER" is displayed.
OFF
Toner end is not indicated.
"ADD PAPER" or the wrong paper size is
---
displayed at power on.
Page separation may be done even if the
---
original is the same size as the copy paper.
The Add Paper indicator lights even if paper is
ON
remaining.
The Add Paper indicator does not light when
OFF
the paper has run out.
"ADD PAPER" or the wrong size is displayed
---
at power on.
Page separation may be done even if the
---
original is the same size as the copy paper.
7-35
TROUBLESHOOTING
Symptoms if Defective
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