Print Quality Or Tone Is Uneven; Half-Tone Images Print Unevenly; Toner Smudges - Epson AcuLaser M4000N User Manual

Print quality or tone is uneven

Cause
Your paper may be moist or damp.
The imaging cartridge may be near the end of its
service life.

Half-tone images print unevenly

Cause
Your paper may be moist or damp.
The imaging cartridge may be near the end of its
service life.
The gradation setting is too small when printing
graphics.

Toner smudges

Cause
Your paper may be moist or damp.
You may not be using the correct type of paper for
your printer.
The paper path inside the printer may be dusty.
AcuLaser M4000 Series
What to do
Do not store paper in a humid or damp environment.
If the message on the LCD panel or in EPSON Status Monitor
indicates that the imaging/toner cartridge is near the end of
its service life, replace the imaging cartridge. See "Imaging
Cartridge" on page 122.
For Windows users, you can also check the remaining service
life of the imaging cartridge by looking at the Basic Settings
tab in the printer driver.
What to do
Do not store paper in a humid or damp environment. Be sure
to use paper that is newly unwrapped.
If the message on the LCD panel or in EPSON Status Monitor
indicates that the imaging/toner cartridge is near the end of
its service life, replace the imaging cartridge. See "Imaging
Cartridge" on page 122.
You can also check the remaining service life of the imaging
cartridge by looking at the Basic Settings tab in the printer
driver.
For Windows users, on the Basic Settings tab in the printer
driver, click the Advanced tab and select the More Settings
button. Then select the Halftoning.
The setting above can be set only when printing in black and
white.
What to do
Do not store your paper in a humid or damp environment.
EPSON Color Laser Paper or smooth, high-quality copier paper
is recommended for best results. See "Available paper types"
on page 197 for information on choosing paper.
Clean internal printer components by printing three pages
with only one character per page.
User's Guide
Troubleshooting 159