Ricoh HL-F1, Field Service Manual

Page: 232 / 296

Possible cause and Remedy
1. Printer installation
• Is the printer placed horizontally?
No: Place the printer on a flat surface.
2. Toner cartridge
• Does the problem happen immediately after replacing the toner cartridge with a new one?
Yes: Remove and carefully shake the toner cartridge horizontally.
3. Scanner window dirty
• Is the scanner window dirty?
Yes: Clean the scanner window with a soft dry cloth.
4. Laser unit failure
• Is the problem solved by replacing the laser unit?
Yes: Replace the laser unit.
I-15 White spots
User Check
1. If the problem is not solved after printing a few pages, the drum unit may have glue from label stock
on the exposure drum surface. Refer to Step 1 in the "Possible cause and Remedy" and NOTE below.
2. The drum unit may be damaged. Install a new drum unit.
Possible cause and Remedy
1. Drum unit failure
• Are the white spot at 75.3mm intervals?
Yes: 1) If toner or glue remains stuck, wipe it off gently with a cotton swab. (Refer to NOTE
below.) 2) If the drum surface is scratched, replace the drum unit.
6. Troubleshooting
230
6