Epson AcuLaser C9300 - Manual (Page 161)

Vertical lines appear on the printout
Cause What to do
The exposure window may be dusty. Clean the exposure window. For details, see “Cleaning the
exposure window” on page 137.
Print quality or tone is uneven
Cause What to do
Your paper may be moist or damp. Do not store paper in a humid or damp environment.
One of the toner cartridges may be near the end of its
service life. If the message on the LCD panel or in EPSON Status Monitor
indicates that one of the toner cartridges is near the end of its
service life, open cover D, make sure the cartridge is locked, and
tap the top of the toner cartridge about five times with your finger.
If the problem is not resolved, replace the toner cartridge. See
“Replacing Consumable Products” on page 133.
For Windows users, you can also check the remaining service life
of the toner cartridge by looking at the Basic Settings tab in the
printer driver.
There may be a problem with photoconductor units. Replace the photoconductor units. See “Replacing Consumable
Products” on page 133.
Half-tone images print unevenly
Cause What to do
Your paper may be moist or damp. Do not store paper in a humid or damp environment. Be sure to
use paper that is newly unwrapped.
One of the toner cartridges may be near the end of its
service life. If the message on the LCD panel or in EPSON Status Monitor
indicates that one of the toner cartridges is near the end of its
service life, open cover D, make sure the cartridge is locked, and
tap the top of the toner cartridge about five times with your finger.
If the problem is not resolved, replace the toner cartridge. See
“Replacing Consumable Products” on page 133.
For Windows users, you can also check the remaining service life
of the toner cartridge by looking at the Basic Settings tab in the
printer driver.
Epson AcuLaser C9300 Series User's Guide
Troubleshooting 161