Ricoh Pro 8320 - Blurred Images in Bands; Blurred Text; Low Density in Shaded Area

2.Image Quality Problems
686
Blurred Images in Bands
Halftone and text images appear light (low in density) or blurred at intervals within bands that are equal
to the circumference of the drum.
Low Density in Shaded Area
Blurred Text
 In addition to these problems, backgrounds may appear dirty, or the machine could issue
SC401 if the problem occurs during toner supply control (process control).
Cause
Nitrous oxide generated during drum charging combines with the lubricant powder (zinc stearate) and
absorbs moisture which can adhere to the drum surface. If the machine remains idle for a long period,
this could prevent the drum from charging evenly in the affected areas.
Solution
1. Update the Engine firmware to Ver.1.45:08 or later.
 Executing SP2810-001 (Clear Blurred Image) with older engine firmware could cause the
machine to issue SC465.
2. Specify the following settings for SP2810 values to clear blurred text and images:
 SP2810-001: 1 (default). This setting will automatically execute and correct the problem every
time.
 SP2810-005: 360 (default) change to 120. This setting will automatically execute and correct
the problem after the machine remains idle for 2 hours.
 SP2810-006: 13 (default) change to 7. This setting will automatically execute and correct the