Switches - Ricoh K-C1 Service Manual

20 February, 2001
Component
Scanner H.P.
Platen Cover
Original Width
305-3,4
Original Length
305-8,9
Duplex Entrance
Duplex Exit
Duplex Inverter
NOTE: SC392 is activated when the CPU detects an ID sensor error during
developer initialization (SP2-214). 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 the "Error!!!" message is displayed.

4.2.2 SWITCHES

Component
Upper Paper
Size
Vertical
Transport Door
Lower Paper
Size
By-pass Paper
Size 1,2,4,5
CN Condition
Open
304-2
(IOB)
Shorted
Open
304-5
(IOB)
Shorted
Open
(IOB)
Shorted
Open
(IOB)
Shorted
Open
222-2
(DCB)
Shorted
Open
222-5
(DCB)
Shorted
Open
220-6
(DCB)
Shorted
CN Condition
315 Open
1,2,4
Shorted
(IOB)
Open
316-5
(IOB)
Shorted
317- Open
1,2,4
Shorted
(IOB)
311-
Open
(IOB)
ELECTRICAL COMPONENT DEFECTS
Symptom
SC120 is displayed.
APS and Auto Reduce/Enlarge do not function
correctly.
If the Start button is pressed with the platen
cover or A(R)DF closed, "Cannot detect original
size" is displayed.
The CPU cannot detect the original size
properly. APS and Auto Reduce/Enlarge do not
function correctly.
The CPU cannot detect the original size
properly. APS and Auto Reduce/Enlarge do not
function correctly.
The Paper Jam message will appear whenever
a duplex copy is made (paper hasn't reached
the sensor).
The Paper Jam message appears even if there
is no paper at the sensor.
The Paper Jam message will appear whenever
a duplex copy is made (paper hasn't reached
the sensor).
The Paper Jam message appears even if there
is no paper at the sensor.
The Paper Jam message will appear whenever
a duplex copy is made (paper hasn't reached
the sensor).
The Paper Jam message appears even if there
is no paper at the sensor.
Symptom
The CPU cannot detect the proper paper size,
and misfeeds may occur when a copy is made
from the 1st paper tray.
The Cover Open indicator is lit even if the
vertical transport door is closed.
The Cover Open indicator is not lit even if the
vertical transport door is opened.
The CPU cannot detect the proper paper size,
and misfeeds may occur when a copy is made
from the 2nd paper tray.
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.
4-9