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EN Potential toner cartridge issues 167
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Potential toner cartridge issues
Banding
When printing with a laser printer, the toner is applied across the page
in horizontal strips. The page is moved through the printer and toner is
continually applied. When printing text or black image pages, a large
amount of toner is deposited on the page. As the amount of toner
deposited on the page decreases, slight speed variations become more
apparent. As the resolution (dots per inch) and the speed (pages per
minute) increase, a variation in pattern intensity might appear on the
page as lines or bands.
The bands are more visible in certain grayscale patterns. High-speed
printers that are capable of printing high-resolution, grayscale patterns
are more likely to display the pattern variations. Changing the grayscale
pattern or reducing the resolution might significantly reduce the amount
of banding that occurs.
Character voids
Small gaps or voids might appear in some of the characters when
printing on media other than standard photocopier paper. These
“character voids” occur because some print media does not accept the
transfer of toner as well as others.
To minimize the occurrence of character voids, avoid using media with
a rough finish. Use media that is within the Hewlett-Packard paper
specifications listed in the user guide or the HP LaserJet Printer Family
Print Media Guide. If the finish is too rough, the surface will have large
inconsistencies. If the finish is too smooth, toner will not adhere well.
Adjusting the print density might affect the severity of character voids.