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The printer sounds like it is printing, but nothing prints
Cause What to do
The print head moves, but
nothing prints.
If the print head moves, but nothing prints, confirm the printer operation.
Print a nozzle check pattern. You can check the printer’s operation and status without
connecting the printer to the computer.
See “Nozzle check” on page 75
If the print head moves, but nothing prints, make sure MOTOR SELF ADJUSTMENT is
displayed on the LCD panel.
The printer adjusts the motor inside of the printer. Please wait without turning off the
printer. After about three minutes, the printer returns to normal operation.
The nozzle check pattern is not
printed correctly
Are the print head nozzles clogged?
If the nozzles are clogged, the print quality is reduced. Clean the print head and then
print the nozzle check pattern again.
See “Head cleaning” on page 77
If the nozzle check pattern has missing dots, perform a print head cleaning.
If you replace the ink cartridges while the printer is turned off, the remaining amount
of ink cannot be detected correctly so that the Ink Check light does not come on even
when the ink cartridge needs to be replaced; otherwise you cannot print correctly. Be
sure to follow the instructions in this manual to replace the ink cartridge.
See “Replacing Ink Cartridges” on page 68
Has the printer not been used for a long time?
If the printer has not been used for a long time, the nozzles dry up and may be
clogged. See the following section.
See “If you do not use your printer for more than a year” on page 85
Cannot print with white ink
Are the print head nozzles clogged?
If the nozzles are clogged, print quality is reduced. Execute head cleaning and then
print a nozzle check pattern. If the nozzles are still clogged, try power cleaning or white
ink refresh and then print the nozzle check pattern again.
See “Head cleaning” on page 77
See “Power cleaning” on page 78
See “White ink refresh” on page 78
Has the printer not been used for a long time?
When not using your printer for a long time, sedimentation of the white ink may occur
in the print head nozzle, and then the nozzles may be clogged. See the following
sections for more information on what to do if you have not used your printer for a
long time.
See “If you do not use your printer for more than a month” on page 85
See “If you do not use your printer for more than a year” on page 85
Epson Stylus Pro WT7900/7910 User’s Guide
Problem Solver
98
98


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