Olivetti PF-650(B), Руководство по обслуживанию

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3MV
1-4-3
1-4-2 Self-diagnosis
(1) Self-diagnostic function
When a problem is detected in the side feeder, copying is disabled and the machine operation section displays a code
consisting of “C” followed by a number, indicating the nature of the problem.
After removing the problem, the self-diagnostic function can be reset by reattaching the side feeder.
(2) Self diagnostic code
Code Contents
Remarks
Causes Check procedures/corrective measures
C0420 Side feeder communication error
• A communication error from side
feeder is detected 10 times in succes-
sion.
Poor contact in the
connector termi-
nals. Check the connection of connector YC15 on
the engine PWB and the connector YC3 on
the side feeder main PWB, and the continu-
ity across the connector terminals. Repair or
replace if necessary.
Defective engine
PWB. Replace the engine PWB.
Defective side
feeder main PWB. Replace the side feeder main PWB.
C0700 Side feeder EEPROM error
• An error occurs in EEPROM (U4) data
read or write for the side feeder main
PWB.
Defective side
feeder main PWB. Replace the side feeder main PWB.
C1140 Side feeder lift motor going up error
(optional side feeder)
• Upper limit detection switch does not
turn off within 15 s of the side feeder
lift motor starting (within 200 ms during
paper feeding). This error is detected
four times successively.
Poor contact of
upper limit detec-
tion switch connec-
tor terminals. Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
repair or replace the cable.
Defective side
feeder main PWB. Replace the side feeder main PWB.
Defective side
feeder lift motor. Run maintenance mode U247 and measure
the voltage between terminals YC5-A12
(side feeder main circuit board) and YC6-
B11. (Make sure all of LUSSW, UCSSW,
LLSSW and RCSSW are off.)
Despite either DC24V or DC-24V is
observed but if the side feeder lift motor
does not operate, replace the side feeder lift
motor.
Y110900-9 Service Manual