Ricoh IM 550F

6.Troubleshooting
623
The following diagram shows the possible symptoms (black or white dots at regular intervals).
[A]: Paper feed direction
[B]: Problems at regular intervals
• 29.9 mm intervals: Charge roller
• 36.8 mm intervals: Registration roller
• 44.9 mm intervals: Development roller
• 58.0 mm intervals: Transfer roller
• 94.2 mm intervals: Drum
• 94.2 mm intervals: Pressure roller
• 109.9 mm intervals: Hot roller
SC670 (engine startup error) is displayed
Cause
The engine board resets at an unexpected time and does not start up again.
This occurs in the priority order of SC670-03 > 04 > 05 >01 > 02.