Service Call Conditions
SM 4-7 D017/D018/D019/D020
Trouble-
shooting
220 D Laser synchronization detection error: LD0
The laser synchronizing detection
signal for the start position of the LD
was not output for two sec. after LDB
unit turned on with the polygon motor
rotating normally.
Laser synchronizing detection
board harness loose or
broken.
Laser synchronization
detection board defective
LDB unit defective
IPU defective
230 D FGATE ON error
The FGATE signal did not assert within the
prescribed time. (The BCU generates the
FGATE signal and sends it to the LD unit
when the registration sensor switches on.)
231 D FGATE OFF error
The FGATE signal did not go off within the
prescribed time. (The BCU generates the
FGATE signal and sends it to the LD unit
when the registration sensor switches on.)
BCU, Controller board
harness loose or broken
BCU defective
Controller board defective
240 LD error
The IPU detected a
problem at the LD unit.
LD unit harness broken, defective
BCU harness broken defective
LD unit defective
BCU defective
Charge level output error
302 D
The PWM output level was detected
higher than 50% after 10 consecutive
samplings.
HVPS (High Voltage Power
Supply) board harness loose,
broken.
PCU connection loose or
To Next Page
Loading...
