HP LaserJet M4345 MFP - Vertical white lines; Tire tracks

Vertical white lines
Defect description
Vertical white lines appear on the printed page.
Possible causes
Media in use does not meet HP specifications. The print cartridge needs to be replaced.
Troubleshooting and suggestions
1. Print a few more pages to see if the problem corrects itself.
2. Make sure that the type and quality of media you are using meet HP specifications.
3. Replace the print cartridge.
Tire tracks
A
A
A
A
A
B
B
B
B
B
C
C
C
C
C
a
a
a
a
a
c
c
c
c
c
b
b
b
b
b
Defect description
Images resembling tire tracks appear on the printed page. This defect typically occurs when the print
cartridge has far exceeded its rated life, especially when printing a very large quantity of pages with
very little toner coverage.
Possible causes
The print cartridge needs to be replaced.
Troubleshooting and suggestions
1. Replace the print cartridge.
2. Reduce the number of pages that you print with very low toner coverage.
ENWW Solve print-quality problems 427
manuals4you.commanuals4you.com