Ricoh B121 - Page 155

ELECTRICAL COMPONENT DEFECTS
SM 4-13 B121 Series/B259 Series
Trouble-
shooting
Component CN Condition Symptom
Open Scanner H.P.
102-2
(BICU)
Shorted
SC120 is displayed.
Open
APS and Auto Reduce/Enlarge do not function
correctly.
Platen Cover
102-5
(BICU)
Shorted
If the Start button is pressed with the platen
cover or A(R)DF closed, “Cannot detect original
size” is displayed.
Open Original Width
103-3,4
(BICU)
Shorted
The CPU cannot detect the original size
properly. APS and Auto Reduce/Enlarge do not
function correctly.
Open Original Length
103-8,9
(BICU)
Shorted
The CPU cannot detect the original size
properly. APS and Auto Reduce/Enlarge do not
function correctly.
Open
The Paper Jam message will appear whenever
a duplex copy is made (paper hasn't reached
the sensor).
Duplex Entrance
222-2
(DCB)
Shorted
The Paper Jam message appears even if there
is no paper at the sensor.
Open
The Paper Jam message will appear whenever
a duplex copy is made (paper hasn't reached
the sensor).
Duplex Exit
222-5
(DCB)
Shorted
The Paper Jam message appears even if there
is no paper at the sensor.
Open
The Paper Jam message will appear whenever
a duplex copy is made (paper hasn't reached
the sensor).
Duplex Inverter
220-6
(DCB)
Shorted
The Paper Jam message appears even if there
is no paper at the sensor.
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 an error message is displayed.