Hp laserJet Pro M402, M403 User Guide enww

Clean the printer
Print a cleaning page
During the printing process paper, toner, and dust particles can accumulate inside the printer and can cause 
print-quality issues such as toner specks or spatter, smears, streaks, lines, or repeating marks.
Use the following procedure to print a cleaning page.
1.
On the printer control panel, press the 
OK
button.
2.
Open the following menus:
●
Service
●
Cleaning Page
3.
Load plain letter or A4 paper when you are prompted, and then press the 
OK
button.
A Cleaning message displays on the printer control panel. Wait until the process is complete. Discard the 
page that prints.
Visually inspect the toner cartridge
Follow these steps to inspect each toner cartridge.
1.
Remove the toner cartridge from the printer.
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, 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.
ENWW
Improve print quality
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