Ricoh D146 Service Manual page 546

Service Call 501-584
SC No. Level
SC No. Level
SC551-01 A
SC551-02 A
SC551-03 A
D146/D147/D148/D149/D150
Error Name/Error Condition/Major Cause/Solution
§
Replace the motor
§
Replace the HP sensor
§
Replace the fusing unit
Error Name/Error Condition/Major Cause/Solution
Fusing Edge Thermopile Disconnection
Below -50 degrees C (or below CB) is detected for (t11) seconds
continuously.
§
Thermopile disconnection
§
Connector disconnected
§
Replace the thermopile
§
Reset the connector
§
Replace the connector
§
Replace the fusing unit
Edge NC Sensor Disconnection
3ED - 3FF (FB voltage: 3.243V-3.300V) is detected for (t13)
seconds continuously (NC sensor center: detection &
compensation NC sensor edge: detection & compensation).
Detection period: 100 ms, detection frequency: 10 times or
more.
§
NC sensor disconnection
§
Connector disconnected
§
Replace the NC sensor
§
Reset the connector
§
Replace the connector
§
Replace the fusing unit
Edge NC Sensor Short-circuit
AD value: 0-13 (FB voltage: 0.000V-0.041V) (*3) is detected for
(t14) seconds continuously.
Detection period: 100 ms, detection frequency: 10 times or
more.
5-72 SM