Disturbed Image; Deterioration Of Graininess In Halftone Areas - Ricoh Pro C7500 Original Instructions Manual

4. Image Quality Problem: Full Page

Disturbed Image

Deterioration of Graininess in Halftone Areas

Cause:
This may occur if:
• Printing is performed after the machine is left idle for a while.
• Printing is done at high temperature or humidity
• Documents with a small image area are printed continuously.
The developer's electrostatic property diminishes, causing the toner adhesion to increase. If this
happens, the shapes of half-tone image dots may be degraded and luster (dot height) may be uneven.
Solution:
1. In the [Machine: Maintenance] group on the [Operator Adjust.] menu, execute 0506:
[Execute Developer Refreshing].
2. Print the image. Has the problem been resolved?
Yes
No
3. Set the value of halftone screen frequency in the print setting to "175" or "200".
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DXT864