Operation Manual

If The following nozzle(s) are clogged. is
displayed, press the [ button to start Auto
Cleaning. Press the Z button to close the Ink
Menu. When the Ink Menu is closed, the message
informing you which nozzle(s) are clogged is
removed.
When performing Print Check Pattern
Review the printed check pattern while referring
to the following section.
Example of clean nozzles
There are no gaps in the nozzle check pattern.
Example of clogged nozzles
If any segments are missing in the nozzle check
pattern, perform head cleaning. U “Cleaning
the print head” on page 115
Auto Nozzle Check Settings
Perform this function from the Menu.
If Auto Nozzle Check is set to On:Every Job, it is
performed whenever printing starts.
When On:Periodically is set, auto nozzle check is
performed when printing starts based on an internally
determined timing system.
When changing the black ink type, auto nozzle check is
performed regardless of the settings.
When clogging is detected, Auto Cleaning is performed
the number of times set in the Maintenance Mode menu
(the factory setting is once; three times maximum) until
the clogged nozzles are cleared.
Auto Nozzle Check Settings
U “Printer Setup menu” on page 103
Cleaning the print head
Although head cleaning can be performed from the
computer or the printer, the cleaning procedures differ
as explained below.
❏ From the computer
You can clean all colors.
❏ From the printer
You can select from the following two types.
Auto Cleaning
Manual Cleaning
Notes on head cleaning
Note the following points when performing head
cleaning.
❏ Clean the print head only if print quality declines;
for example, if the printout is blurry or the color is
incorrect or missing. Ink is consumed when head
cleaning is performed.
❏ When you perform All Colors/All Colors
(Powerful) in Manual Cleaning from the printer,
ink is consumed from all of the ink cartridges. Even
if you are using only black inks for black and white
printing, color inks are also consumed.
❏ You cannot perform head cleaning when the H light
is on. Replace the ink cartridge with a new one first.
(If there is enough remaining ink for head cleaning,
you may be able to perform head cleaning from the
printer's control panel.)
U “Replacing Ink Cartridges” on page 120
❏ When repeating head cleaning in a short time
period, the Maintenance Box may fill up quickly
due to a small amount of ink evaporation in the
Maintenance Box. Prepare a spare Maintenance
Box if there is not enough empty space in the box.
❏ If the nozzles are still clogged after cleaning the
print head several times, we recommend trying
power cleaning.
Epson Stylus Pro 4900/4910 User's Guide
Maintenance
115