Electric Problems - Olivetti PG L2555 Service Manual

1-3-3 Electric problems

Problem
(1)Defective paper
jam detecting.
False paper jam
message display.
(2)Defective paper
gauge sensing.
False paper gauge
indication.
(3)Defective paper
size detecting.
False paper size
message display.
Causes
Actuators of paper feed
sensor does not operate
smoothly.
A piece of paper torn
from a sheet is caught
around actuator of paper
feed sensor.
Defective paper feed
sensor.
Defective PF main PWB. Replace the PF main PWB (See page 1-4-4).
Defective printer's
engine PWB.
Defective paper gauge
sensors.
Actuator of paper gauge
sensors does not oper-
ate smoothly.
Defective PF main PWB. Replace PF main PWB (See page 1-4-4).
Defective printer's
engine PWB.
Defective cassette size
switch.
Defective PF main PWB. Replace the PF main PWB (See page 1-4-4).
Defective printer's
engine PWB.
Check procedures/corrective measures
Check visually and replace if necessary.
Check visually and remove it, if any.
Replace the paper feed sensor.
Replace printer's engine PWB.
(Refer to the service manual for the printer)
Replace the PF main PWB (See page 1-4-4).
Check visually and replace if necessary.
Replace printer's engine PWB.
(Refer to the service manual for the printer)
Replace the cassette size switch.
Replace printer's engine PWB.
(Refer to the service manual for the printer)
1-3-8