Ricoh Pro 8320 - Page 667

2.Image Quality Problems
659
Cause:
Ambient conditions and paper characteristics (such as slick surface or electrical resistance) may cause
too much charge in the electrical field, making dots appear. This can occur when:
 High temperature, low humidity
 Coated paper is used
 Paper is thin (lower than Thickness 3)
 Halftones are used in fill areas
 To adjust the following settings, register beforehand the type of paper that you are using as a
custom paper.
Solution
1. In Advanced Settings for the custom paper in use, check the present value in Image Transfer
Voltage and PTR voltage settings.
 SP2-431-001 to 003: ITB Current Custom Paper 001 to 003
 SP2-641-100 to 178: PTR Current: Side1 Custom Paper 100 to 178
 SP2-642-001 to 178: PTR Current:Side2 Custom Paper 001 to 178
2. Is paper transfer current setting 140 or less?
Yes
Raise the paper transfer current by 10 points.
No
Go to Step 4.
3. Print the image. Is the problem resolved?
Yes
Finished.
No
Repeat Steps 2, 3. If the problem persists, go to the next step.
4. Set image transfer current to 140.
5. Is the absolute value of the paper transfer current less than 50?
Yes
Use different paper.
No
Go to the next step.
6. Lower the absolute value of the paper transfer current by 10 points.
7. Print the image. Is the problem resolved?
Yes
Finished.