Ricoh Russian-C2a - Switches

10 August, 2001 ELECTRICAL COMPONENT DEFECTS
7-19
Trouble-
shooting
7.5.2 SWITCHES
Component
(Symbol)
CN Condition Symptom
Open The machine does not turn on.
Main
281-1,2
(PSU)
Shorted The machine does not turn off.
Open
The Cover Open indicator is not lit even if the
right upper cover is opened.
Right Upper
Cover
324-8
(SBCU)
Shorted
The Cover Open indicator is lit even if the
right upper cover is closed.
Open
The Cover Open indicator is not lit even if the
right cover is opened.
Right Cover
308-9
(SBCU)
Shorted
The Cover Open indicator is lit even if the
right cover is closed.
Open
The Cover Open indicator is not lit even if the
right lower cover is opened.
Right Lower
Cover
307-A8
(SBCU)
Shorted
The Cover Open indicator is lit even if the
right lower cover is closed.
Open
Upper Paper
Size
308-1,2,4,5
(SBCU)
Shorted
The CPU cannot detect the proper paper
size, and misfeeds may occur when a copy is
made.
Open
Lower Paper
Size
308-6,7,9,10
(SBCU)
Shorted
The CPU cannot detect the proper paper
size, and misfeeds may occur when a copy is
made.
Open
The TD sensor initial setting procedure is not
performed when a new PCU is installed.
New PCU Detect
327-7
(SBCU)
Shorted
The TD sensor initial setting procedure is
performed whenever the front cover is closed.
Open
The Cover Open indicator is not lit even if the
front cover is opened.
Front Cover
Safety
311-2, 4
(SBCU)
Shorted
The Cover Open indicator is lit even if the
front cover is closed.
Open
The LCD does not off even if the operation
switch is turned off.
Operation
105-1
(IPU
Shorted
The LCD does not on even if the operation
switch is turned on.