Olivetti d-Copia 18MF Service Manual page 80

Code
C2000 Main motor problem
• LOCK ALM signal remains high for 1
s, 1 s after the main motor has turned
on.
C3100 Scanner carriage problem
• The home position is not correct
when the power is turned on or copy-
ing the document placed on the con-
tact glass.
C3200 Exposure lamp problem
• In indicator check before starting
copying, the average value in scan-
ning of the shading plate with the
CCD is 128 or more.
1-5-10
Contents
Service Manual
Causes Check procedures/corrective measures
Poor contact in Reinsert the connector. Also check for con-
the main motor tinuity within the connector cable. If none,
connector termi- remedy or replace the cable.
nals.
Defective main Replace the main motor.
motor rotation
control circuit.
Defective drive Check if the rollers and gears rotate
transmission sys- smoothly. If not, grease the bushings and
tem. gears. Check for broken gears and replace
if any.
Poor contact of Check the connection of connectors YC10,
the connector ter- 11 on the engine PWB and the continuity
minals. across the connector terminals. Repair or
replace if necessary.
Defective scanner Replace the scanner home position sen-
home position sor.
sensor.
Defective engine Replace the engine PWB or scanner PWB
PWB or scanner and check for correct operation.
PWB.
Defective scanner Replace the scanner motor.
motor.
Defective scanner Replace the scanner PWB and check for
PWB. correct operation.
Defective expo- Replace the exposure lamp or inverter
sure lamp or in- PWB.
verter PWB.
Incorrect shading Adjust the position of the contact glass
position. (shading plate). If the problem still occurs,
replace the scanner home position sensor.
Poor contact of Check the connection of connector YC7 on
the connector ter- the scanner PWB, and the continuity
minals. across the connector terminals. Repair or
replace if necessary.
Remarks
Y104230-6