Ricoh D014 Service Manual page 459

SC210 D Laser beam detection error: K (Black)
SC211 D Laser beam detection error: Y (Yellow)
SC212 D Laser beam detection error: M (Magenta)
SC213 D Laser beam detection error: C (Cyan)
The laser synchronization
sensor failed to detect the
beginning and end of the laser
beam flash for the designated
color onto the polygon mirror
while the mirror is rotating at
the prescribed number of
revolutions.
Laser Synchronization Detector Error: K Leading Edge: LD0
While the polygon motor is
rotating normally, no
synchronizing detection signal
SC220 D
is output for LD0 black, or
leading edge, even after the
laser diode has been firing for
2 sec.
SM
CÓPIA NÃO CONTROLADA
4-9
CÓPIA NÃO CONTROLADA
Service Call Tables
Laser synchronization
detector sensor connection
loose, not connected
Laser synchronization
detector sensor defective
LD unit defective
IPU defective
VBCU defective
Harness between the laser
synchronizing detector and I/F unit
is disconnected, defective
Check all connections between LD
unit, LDB, IPU
LD unit
LDB defective
IPU defective
D014/D015/D078/D079