HP LaserJet 4100 Series - User Guide

136 Chapter 4 - Problem solving
EN
Tire tracks
This defect typically occurs when the toner cartridge has far
exceeded its rated usage of 10,000 pages (for example, printing a
very large quantity of pages with very little toner coverage).
1 Replace the toner cartridge.
2 Reduce the number of pages that you print with very low toner
coverage.
3 Use the 6,000-page cartridge if you cannot reduce the number of
pages with very little toner coverage (part number C8061A).
White spots on black
1 Print a few more pages to see if the problem corrects itself.
2 Make sure that paper type and quality meet HP specifications
(see “Paper specifications” on page 188).
3 Make sure that the environmental specifications for the printer are
being met (see “General specifications” on page 202).
4 Replace the toner cartridge.