Paper Types Likely To Cause Problems - Ricoh Pro 8300S Troubleshooting Manual

2.Image Quality Problems
When paper with a lot of paper dust enters the nip of the PTR unit, the paper dust adheres to the
entrance guide plate of the PTR unit. From the guide plate, this paper dust is then transferred to the
paper, causing the white spots.

Paper Types Likely to Cause Problems

Digital Matt Paper 250gsm 13x19mm

Color Copy coated silk 170gsm SRA3

Solution
Change the entrance guide plate of the PTR unit.
1.
Remove the parts in the following order:
1. PTR unit
2. ITB cover
3. ITB cleaning unit
4. ITB unit
2.
Remove the entrance guide plate [A] of the PTR unit.
If you are no longer using the paper type in question, install back the original entrance guide

plate of the PTR unit.
Changing the entrance guide plate will shorten the protrusion of the film sheet (mylar) from 8

mm to 4 mm. Due to the stiffness of the paper, its trailing edge comes close to the image
transfer belt; toner on the belt scatters, causing the halftone image area to be darker.
 In particular, dust becomes obvious on halftone images with dots, and it is apparent that the
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