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Check paper and the printing environment, Step one: use paper that meets hp specifications, Step two: check the environment – HP Color LaserJet Enterprise M751n Laser Printer User Manual

Page 174: Step three: set the individual tray alignment

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4.

If you see any scratches, fingerprints, or other damage on the imaging drum, replace the toner cartridge.

5.

Reinstall the toner cartridge, and print a few pages to see if the problem has resolved.

Check paper and the printing environment

Step one: Use paper that meets HP specifications

Some print-quality problems arise from using paper that does not meet HP specifications.

Always use a paper type and weight that this printer supports.

Use paper that is of good quality and free of cuts, nicks, tears, spots, loose particles, dust, wrinkles, voids,

staples, and curled or bent edges.

Use paper that has not been previously printed on.

Use paper that does not contain metallic material, such as glitter.

Use paper that is designed for use in laser printers. Do not use paper that is designed only for use in Inkjet

printers.

Use paper that is not too rough. Using smoother paper generally results in better print quality.

Step two: Check the environment

The environment can directly affect print quality and is a common cause for print-quality or paper-feeding

issues. Try the following solutions:

Move the printer away from drafty locations, such as open windows or doors, or air-conditioning vents.

Make sure the printer is not exposed to temperatures or humidity outside of printer specifications.

Do not place the printer in a confined space, such as a cabinet.

Place the printer on a sturdy, level surface.

Remove anything that is blocking the vents on the printer. The printer requires good air flow on all sides,

including the top.

Protect the printer from airborne debris, dust, steam, grease, or other elements that can leave residue

inside the printer.

Step three: Set the individual tray alignment

Follow these steps when text or images are not centered or aligned correctly on the printed page when printing

from specific trays.

1.

Load plain paper in Tray 1.

2.

From the Home screen on the printer control panel, select the

Settings

menu.

3.

Select the following menus:

Copy/Print

or

Print

Print Quality

Image Registration

164 Chapter 6 Solve problems

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