Component CN Condition Symptom
Platen Cover
102-5
(BICU)
Open Auto Reduce/Enlarge do not function correctly.
Shorted
If the Start button is pressed with the platen cover
or
A(R) DF closed, “Cannot detect original size”
is displayed.
• SC392
is activated when the CPU detects an ID sensor error during developer initialization (SP 2214).
However, SC392 is not displayed on the LCD but simply logged in the SC log (SMC printout), unless
the technician exits SP Mode as soon as an error message is displayed.
Switches
Component CN Condition Symptom
Paper Size
115-
1,2,4
(BICU)
Open The CPU cannot detect the proper paper size,
and misfeeds may occur when a copy is made
from the 1st paper tray.
Shorted
By-pass Paper Size
136-
1,2,4,5
(BICU)
Open
The CPU misdetects or is not able to detect the
size of the paper set in the bypass tray, causing
possible misfeeds when feeding from this tray.
Right Door
124-5
(BICU)
Open
The Cover Open indicator is lit even if the right
door is closed.
Shorted
The Cover Open indicator is not lit even if the right
door is open.
Front/Right Cover
130-1
(BICU)
Open
The Cover Open indicator is lit even if doors are
closed.
Shorted
The Cover Open indicator is not lit even if doors
are open.
Main
281-3,4
(PSU)
Open The machine does not turn on.
Shorted The machine does not turn off.
Electrical Component Defects
123
To Next Page
Loading...
