Ricoh A172 User Manual

1.3 PRINTING
SC302:
See AROUND THE DRUM
SC303:
See AROUND THE DRUM
SC320: Polygon motor lock
- Definition - [B]
The polygon motor lock signal is detected for more than 3 seconds.
- Possible causes -
• Polygon motor defective
• Polygon motor drive board defective
• Scanner control board defective
SC321: Transfer belt start signal error
- Definition - [B]
The transfer belt start signal is not detected within 500 ms relative to the
programmed timing.
- Possible causes -
• IPU board defective
• DIP SW301-1 on the IPU board is not ON
SC322: Laser synchronizing signal error
- Definition - [B]
The intervals between laser synchronizing signals become over 1.2 times
the normal interval.
- Possible causes -
•
Laser synchronizing detector board defective
•
Scanner control board defective
•
Laser synchronizing detector board not properly positioned
•
LD unit defective
SC323: LD drive current over
- Definition - [B]
The LD drive board applies more than 100 mA to the LD for over 2.3 ms.
- Possible causes -
•
LD unit defective
Trouble -
shooting
SM 6-7 A172/A199

Ricoh A172 Specifications

General

Brand	Ricoh
Model	A172
Category	All in One Printer
Language	English