Kyocera FS-2000D - Page 60

2F8/2F9/2GA
1-4-4
2200 Drum motor error
DMOTRDYN signal does not go low
within 2 s after DMOTONN signal goes
low.
Defective harness
between drum
motor and engine
PWB (YC11), or
improper connec-
tor insertion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Defective drum
motor drive
transmission
system.
Check if the gears rotate smoothly. If not,
grease the bushings and gears. Check for
broken gears and replace if any.
Defective drum
motor.
Replace the drum motor.
Defective engine
PWB.
Replace the engine PWB (See page P.1-5-
22).
4000 Polygon motor (laser scanner unit)
error
POLRDYN signal does not go low within
2 s after POLONN signal goes low.
Defective harness
between polygon
motor and main
PWB (YC10), or
improper connec-
tor insertion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Defective harness
between main PWB
(YC11) and engine
PWB (YC12), or
improper connector
insertion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Defective laser
scanner unit.
Replace the laser scanner unit (See page
P.1-5-32).
Defective engine
PWB.
Replace the engine PWB (See page P.1-5-
22).
Defective main
PWB.
Replace the main PWB (See page P.1-5-
26).
4200 Laser output (pin photo sensor) error
The pin photo signal (PDN) is not output
within a specified time after the polygon
motor ready signal (POLRDYN)
becomes ready (L level).
Defective harness
between PD PWB
(YC1) and main
PWB (YC12), or
improper connec-
tor insertion.
Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Defective APC
PWB.
Replace the laser scanner unit (See page
P.1-5-32).
Defective PD
PWB.
Replace the laser scanner unit (See page
P.1-5-32).
Defective main
PWB.
Replace the main PWB (See page P.1-5-
26).
5100 Short-circuited main charger output
Five pages have been printed with the
main charger output short-circuited.
Drum unit installed
incorrectly.
Verify harness is not pinched in the drum
unit.
Engine PWB
installed incor-
rectly.
Verify harness is not pinched in the engine
PWB.
Defective engine
PWB.
Replace the engine PWB (See page P.1-5-
22).
Code Contents
Remarks
Causes Check procedures/corrective measures