Ricoh D0AP IM430F
Image Problem. HORIZONTAL WHITE BANDS 94 MM APART
Horizontal white lines appear in halftone images. This is likely to occur in a high temperature, high humidity environment.
Cause
Starting and stopping the rotation of the OPC can cause "footprints" at the development roller nip, making it difficult for the toner to stick and develop images correctly at 94 mm intervals (OPC pitch) and causing white bands.
Action
- Stop the machine for at least 10 minutes.
- Notch Adjustment:
MF model
User Tools > Machine Features > Maintenance > Adjust Image Density. Press [Darker] 1 to 3 times.
Printer model
Menu > Maintenance > Quality Maintenance > Adjust Image Density. Press 1 to 3 times. - SP adjustment
Set SP2-201-206 (DV bias Control: Coefficient: a6) to from -20 to -120. (This value is added to the development bias.)