3LF
1-3-6
1-3-3 Electric problems
Problem Causes Check procedures/corrective measures
(1)
Defective paper jam
detecting.
Actuators of PF paper feed
sensor does not operate
smoothly.
Repair or replace.
A piece of paper torn from a
sheet is caught around
actuator of PF paper feed
sensor.
Check visually and remove it, if any.
Defective PF paper feed
sensor.
Replace the PF paper feed sensor.
Defective PF main PWB. Replace the PF main PWB (See page 1-4-6).
Defective printer’s control
PWB.
Replace the control PWB (Refer to the service manual for the
printer).
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