Defective Paper Jam Detecting; Defective Paper Gauge Sensing; Defective Paper Size Detecting - Kyocera FS-1900 Service Manual

(5) Defective paper jam detecting

Problem
Paper jam frequently
occurs.
False paper jam
message display.

(6) Defective paper gauge sensing

Problem
False paper gauge
indication.

(7) Defective paper size detecting

Problem
False paper size
message display.
Suggested causes
Surface of the registration sensor (PH701) is
dirty with paper particles.
Actuators of registration sensor (PH701) or
exit sensor does not operate smoothly.
Defective sensor board (KP-574), fuser board
(KP-756) or engine board (KP-864).
A piece of paper torn from a sheet is caught
around actuator of registration sensor or exit
sensor.
Suggested causes
Surface of the paper gauge sensor 1 (PH702)
and 2 (PH703) on the sensor board (KP-754)
are dirty with paper particles.
A piece of paper torn from a sheet is caught
around paper gauge sensor 1 (PH702) and 2
(PH703) on the paper sensor board (KP-754).
Reflecting mirror has come off the actuator of
paper gauge sensor 1 (PH702) and 2 (PH703).
Defective paper gauge sensor 1 (PH702) and 2
(PH703) on the sensor board (KP-754).
Defective engine board (KP-864).
Suggested causes
Defective paper size switch.
Defective sensor board (KP-754).
Defective engine board (KP-864).
6-25
Corrective action
Clean with cloth.
Repair or replace.
Replace sensor board
(KP-754), fuser board
(KP-756), or engine board
(KP-864). See page 5-26
and 5-22.
Check visually and
remove it, if any.
Corrective action
Clean with cloth.
Check visually and
remove it, if any.
Check visually and
remove it, if any.
Replace sensor board
(KP-574). See page 5-26.
Replace engine board
(KP-864). See page 5-22.
Corrective action
Replace paper size switch.
Replace sensor board
(KP-574). See page 5-26.
Replace engine board
(KP-864). See page 5-22.
FS-1900