Ricoh K-C3 Service Manual page 133

B245/B276/B277/B268/B269 Service Manual
No.
Definition
559
590 B
591 B
620 B
621 B
Symptom
The fusing temperature
varies 50C or more within
1 second, and this occurs
2 consecutive times.
Jam error detected 3 times in succession
The exit sensor and
the duplex sensor
detect a paper jam 3
times in succession
This condition can
occur when SP 1159
1 is set to 'on'. The
default is 'off'.
Left exhaust fan motor error
The CPU detects an
exhaust fan lock signal for
more than 5 seconds.
Rear exhaust fan motor error
The CPU detects an
exhaust fan lock signal for
more than 5 seconds.
Communication error between BICU and ADF
The BICU does not
receive a response from
the ADF main board for 4
seconds or more.
The BICU receives a
break signal from the ADF
main board.
ADF connection error
An incorrect ADF (an ADF
for some other copier) is
detected. (for Basic and
Possible Cause
Thermistor defective or out of
position
Power supply unit defective
Paper jams can occur for the following
reasons.
Dampness
Paper curl
Incorrect paper setting in the paper
tray
Stripper pawls coming apart
Loose connection of the exhaust fan
motor
Too much load on the motor drive
Loose connection of the exhaust fan
motor
Too much load on the motor drive
Poor connection between the BICU
and ADF main board (DF connector)
ADF main board defective
BICU defective
ADF incorrect (The ADF for
B039/B040/B043 or
B121/B122/B123 is installed on a
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