Black (Color) Spots (2) - Ricoh Pro C9100 Operating Instructions Manual

6. Image Quality Problem: Spots

Black (color) Spots (2)

Paper is stained with toner spots of 0.5–1 mm (0.02–0.04 inches) in diameter.
Cause:
Toner fragments have slipped through the cleaning web.
This may occur if:
• Duplex printing
• Printing on uncoated (especially rough-textured) paper
• Halftone printing
• To adjust the following settings, pre-register the type of paper in use as a custom paper. For details
about registering custom papers, see "Registering a Custom Paper", Paper Settings.
Solution:
1. In [Advanced Settings] for the custom paper, adjust the fusing heat roller temperature.
<Printing in full color>
Increase the value in 088: [Fusing Temp: FC] by 5 degrees.
<Printing in black and white>
Increase the value in 089: [Fusing Temp: BW] by 5 degrees.
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