Sc2Xx: Exposure (D158/D159) - Ricoh D158 Service Manual

Service Call Conditions

SC2xx: Exposure (D158/D159)

No.
Definition
Polygon motor error : ON timeout
202 C
When the polygon motor is
rotating.
Polygon motor error : OFF timeout
203 C
When the polygon motor is
OFF.
Polygon motor error : PMRDY_N signal error
204 C
When the polygon motor is
rotating.
Laser synchronizing detection error
220 C
When the laser synchronizing
detection is ON
D158/D159/D160/D161/D170
Symptom
5-10
Possible Cause

Defective or disconnected harness to
polygon motor

Defective polygon motor

The polygon motor drive pulse is not
released correctly.

Defective or disconnected harness to
polygon motor

Defective polygon motor

The polygon motor drive pulse is not
released correctly.

Defective or disconnected harness to
polygon motor

Defective polygon motor

Disconnected or defective I/F
harness to laser unit.

The laser fails to reach the photo
detector.

Defective laser unit

Defective BICU
SM