Printing quality problems
273
6. Troubleshooting
Vertical lines
If black vertical streaks appear on the page:
•
The surface (drum part) of the imaging unit inside the machine has probably been scratched. Remove the imaging unit and install
a new one (see "Replacing the imaging unit" on page 81).
If white vertical streaks appear on the page:
•
The surface of the LSU part inside the machine may be dirty. Clean the inside of your machine (see "Cleaning the machine" on page
87). If these steps do not correct the problem, contact a service representative.
Black or color background
If the amount of background shading becomes unacceptable:
•
Change to a lighter weight paper.
•
Check the environmental conditions: very dry conditions or a high level of humidity (higher than 80% RH) can increase the amount
of background shading.
•
Remove the old imaging unit and install a new one (see "Replacing the imaging unit" on page 81).
•
Thoroughly redistribute the toner (see "Redistributing toner" on page 77).
Toner smear
•
Clean the inside of the machine (see "Cleaning the machine" on page 87).
•
Check the paper type and quality.
•
Remove the imaging unit and install a new one (see "Replacing the imaging unit" on page 81).
Condition
Suggested solutions
Summary of Contents for Multifunction Xpress C48 series
Page 3: ...3 BASIC 5 Appendix Specifications 111 Regulatory information 120 Copyright 133 ...
Page 78: ...Redistributing toner 78 3 Maintenance ...
Page 80: ...Replacing the toner cartridge 80 3 Maintenance 1 2 ...
Page 82: ...Replacing the imaging unit 82 3 Maintenance ...
Page 84: ...Replacing the waste toner container 84 3 Maintenance 2 1 ...
Page 89: ...Cleaning the machine 89 3 Maintenance 1 2 1 2 ...
