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HP Color LaserJet Pro MFP M285 Manual

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Visually inspect the toner cartridge or cartridges
Follow these steps to inspect each toner cartridge.
1. Remove the toner cartridges from the printer, and verify that the sealing tape has been removed.
2. Check the memory chip for damage.
3. Examine the surface of the green imaging drum.
CAUTION: Do not touch the imaging drum. Fingerprints on the imaging drum can cause print-quality
problems.
4. If you see any scratches, ngerprints, 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 specications
Some print-quality problems arise from using paper that does not meet HP specications.
● 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 aect 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 specications.
● Do not place the printer in a conned 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 ow 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.
ENWW Improve print quality 121
… 133 …


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