Self-Diagnosis; Self-Diagnostic Function; Self Diagnostic Codes - Olivetti DF-670 Service Manual

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Self-diagnosis

(1) Self-diagnostic function

This unit is equipped with a self-diagnostic function. When a problem is detected, copying is disabled and the problem dis-
played as a code consisting of C followed by a number, indicating the nature of the problem.
A message is also displayed requesting the user to call for service.
After removing the problem, the self-diagnostic function can be reset by turning the main power switch off and back on.

(2) Self diagnostic codes

Code
C8170 Finisher front side registration motor
problem
When the front-side registration home-
position sensor is turned on during initial-
ization, the sensor did not turn on while it
has moved by 106 pulses.
When the front-side registration home-
position sensor is turned off during initial-
ization, the sensor did not turn on in 3 s.
C8180 Finisher rear side registration motor
problem
When the rear-side registration home-
position sensor is turned on during initial-
ization, the sensor did not turn on while it
has moved by 106 pulses.
When the rear-side registration home-
position sensor is turned off during initial-
ization, the sensor did not turn on in 3 s.
Y108690-3
Contents
Causes Check procedures/corrective measures
The front side reg- Reinsert the connector. Also check for conti-
istration motor con- nuity within the connector cable. If none,
nector makes poor remedy or replace the cable.
contact.
Defective front side Replace front side registration motor.
registration motor.
The front side reg- Reinsert the connector. Also check for conti-
istration home nuity within the connector cable. If none,
position sensor remedy or replace the cable.
connector makes
poor contact.
Defective front side Replace the front side registration home
registration home position sensor.
position sensor.
Defective finisher Replace the finisher control PWB and check
control PWB. for correct operation.
The rear side reg- Reinsert the connector. Also check for conti-
istration motor con- nuity within the connector cable. If none,
nector makes poor remedy or replace the cable.
contact.
Defective rear side Replace rear side registration motor.
registration motor.
The rear side reg- Reinsert the connector. Also check for conti-
istration home nuity within the connector cable. If none,
position sensor remedy or replace the cable.
connector makes
poor contact.
Defective rear side Replace the rear side registration home
registration home position sensor.
position sensor.
Defective finisher Replace the finisher control PWB and check
control PWB. for correct operation.
Service Manual
Remarks
3LB
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