HECK THE PAPER TYPE SETTING
Make sure the paper type setting matches the paper loaded in the tray:
From the printer control panel, check the Paper Type setting from the Paper menu.
Before sending the job to print, specify the correct type setting:
For Windows users, specify the type from Print Properties.
For Macintosh users, specify the type from the Print dialog.
HE PRINT CARTRIDGE MAY BE DEFECTIVE
Replace the print cartridge.
Print is too light
These are possible solutions. Try one or more of the following:
HECK THE DARKNESS
The Toner Darkness setting is too light, the Brightness setting is too light, or the Contrast setting is too low.
From the printer control panel, change these settings from the Quality menu.
For Windows users, change these settings from Print Properties.
For Macintosh users, change these settings from the Print dialog and pop-up menus.
HE PAPER HAS ABSORBED MOISTURE DUE TO HIGH HUMIDITY
Load paper from a fresh package.
Store paper in its original wrapper until you use it.
HECK THE PAPER
Avoid textured paper with rough finishes.
AND CONTRAST SETTINGS