Defective Paper Jam Detecting; Defective Paper Gauge Sensing; Defective Paper Size Detecting - Kyocera FS-1800 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-
574) 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-
574).
• 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-574).
• Defective engine board (KP-864).
Suggested causes
• Defective paper size switch.
• Defective sensor board (KP-574).
• Defective engine board (KP-864).
6-27
Corrective action
Clean with cloth.
Repair or replace.
Replace sensor board (KP-
574), 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.
C h e c k v i s u a l l y a n d
remove it, if any.
C h e c k v i s u a l l y a n d
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-1800/1800N | FS-3800/3800N