Operation Manual

Epson Stylus Pro 7900/7910/9900/9910 User’s Guide
Maintenance
82
Automatic maintenance
function
This printer has a self-cleaning function and capping
function for maintaining the print head in consistently
good condition to ensure the best print quality.
AUTO NOZZLE CHECK function
The printer performs a nozzle check without printing a
pattern, and if there are missing dots, it performs
cleaning automatically (taking 2 to 13 minutes).
The AUTO NOZZLE CHECK function works in the
following cases:
(1) Just after ink charging
(2) After head cleaning
(3) When printing starts
Also, number (3) is performed using ON:
PERIODICALLY or ON: EVERY JOB, depending on the
timing selected on the control panel. When clogging is
detected, auto cleaning is performed the number of
times set on the control panel (the factory setting is
once; three times maximum) until the clogged nozzles
are cleared; number (2) is only performed once
regardless of the preset number.
Capping function
Capping is a function for automatically covering the
print head with a cap (lid) to prevent the print head
from drying out. Capping is performed in the
following situations.
O When several seconds have elapsed after printing
finishes (that is there is no print data sent)
O When printing is stopped
Take care of the following points to ensure that the
print head is capped properly.
O If the print head is not positioned on the right side
(it is not capped), turn the printer on, then off
again. By turning the printer off with the
button, the head is capped properly.
O If you turn the power off when a paper jam or error
occurs and the print head is not capped, turn the
printer on again. Shortly, the print head is capped
automatically. Check that it is properly capped,
then turn the printer off.
O Do not move the print head manually under any
circumstances.
O Do not remove the power plug of the printer when
the power is on, or cut the power at the breaker.
The head may not be capped properly.