Ricoh D072 Service Manual page 294

No.
Definition
Charge roller current leak
302 B
The polling module detects a current
leak of the charge roller.
Polygonal mirror motor error
The polygon mirror motor does not
reach the operating speed within 10
320 B
seconds. Or, the polygon mirror
motor remains out of the operating
speed for 0.2 second after reaching
the operating speed.
No laser writing signal (F-GATE) error
The poling module does not detect
the laser writing signal (F-GATE)
321 B
asserting after the laser crosses 5
mm from the start point on the drum
surface.
SM Appendix
Symptom
3-39
SC Tables (Basic: D067/D072)
Possible Cause
Defective charge roller
Defective high voltage supply
board
Loose connection of the PCU
Defective polygon mirror motor
Loose connection between the
polygonal mirror motor and the
BICU
Defective cable between the
BICU and the polygon mirror
motor
Defective BICU
Defective BICU
Loose connection on the fax
controller or the printer controller
Defective fax controller or printer
controller
D067/D068/D069/D072