Ricoh HL-F1 Field Service Manual page 241

3. High-voltage power supply PCB failure
• Is the problem solved after replacing the high-voltage power supply PCB?
Yes: Replace the high-voltage power supply PCB.
I-24 Toner specks
User Check
1. Check the paper used meets the recommended paper specifications. A rough surfaced paper may
cause the problem.
2. The toner cartridge may be damaged. Install a new toner cartridge.
3. The drum unit may be damaged, or may be nearly at the end of life. Install a new drum unit.
Troubleshooting Guide
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