HP LaserJet Pro MFP M28-M31 User Guide - Page 91

Resolving print quality problems, Table 8-7

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Table 8-7 Black page Description Black page: The entire printed page is black. Sample Possible solutions 1. Visually inspect the cartridge to check for damage. 2. Make sure that the cartridge is installed correctly. 3. Replace the cartridge 4. If the problem persists, go to support.hp.com. Table 8-8 Banding defects Description Sample Repetitive wide-pitch banding and Impulse bands: Dark or light lines which repeat down the length of the page. They might be sharp or soft in nature. The defect displays only in areas of fill, not in text or sections with no printed content. Possible solutions 1. Reprint the document. 2. Replace the cartridge. 3. Use a different paper type. 4. If the problem persists, go to support.hp.com. ENWW Resolving print quality problems 83

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Table 8-7
Black page
Description
Sample
Possible solutions
Black page:
The entire printed page is black.
1.
Visually inspect the cartridge to check
for damage.
2.
Make sure that the cartridge is
installed correctly.
3.
Replace the cartridge
4.
If the problem persists, go to
support.hp.com
.
Table 8-8
Banding defects
Description
Sample
Possible solutions
Repetitive wide-pitch banding and Impulse
bands:
Dark or light lines which repeat down the
length of the page. They might be sharp or
soft in nature. The defect displays only in
areas of fill, not in text or sections with no
printed content.
1.
Reprint the document.
2.
Replace the cartridge.
3.
Use a different paper type.
4.
If the problem persists, go to
support.hp.com
.
ENWW
Resolving print quality problems
83