Epson Stylus Pro 7900 User Manual

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NOT ENOUGH EMPTY 
SPACE
REPLACE THE RIGHT SIDE 
MAINTENANCE TANKThe maintenance tank is too 
full for head cleaning.Replace the maintenance tank; see 
page 169.
NOZZLE CHECK ERROR
PRESS THE   BUTTONAuto cleaning cannot be 
performed.Press the button to clear the error, then try 
cleaning again. If necessary, cancel cleaning 
from the computer, then restart the printer.
NOZZLE CLOG DETECTED
NOT ENOUGH INK OR 
SPACE IN MAINT TANKNot enough ink or maintenance 
tank capacity for head...

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Improving Print Quality
You can often improve print quality by doing the following:
Run a nozzle check and cleaning cycle. See page 154 for instructions.
Align the print head. See page 158 for instructions.
When you send a print job, make sure your print options are set 
correctly. For more information, see page 87 (Macintosh) or page 123 
(Windows).
PAPER SETTING ERROR
CHECK THE PAPER SOURCE 
IN THE DRIVER SETTINGS 
AND LOAD PAPER 
CORRECTLYThe paper source selected in 
the...

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If none of these suggestions help, try the solutions in the following table.
ProblemSolution 
Your print has horizontal 
banding.◗Check the ink indicators and light to see if you are low on ink. (If you replace 
ink cartridges with the printer turned off, the ink indicators will not be 
accurate.) Replace ink cartridges if necessary, as described on page 159.
◗Run a nozzle check and cleaning cycle. See page 154 for instructions. 
◗Turn off the High Speed setting.
◗Make sure the...

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Your print is grainy, or has 
misregistration or ghosting.◗Check the ink indicators and light to see if you are low on ink. (If you replace 
ink cartridges with the printer turned off, the ink indicators will not be 
accurate.) Replace ink cartridges if necessary, as described on page 159.
◗Run a nozzle check and cleaning cycle. See page 154 for instructions. 
◗Align the print head, as described on page 158.
◗Make sure the Media Type setting in the printer software is correct....

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Your print has gaps or 
appears faint.◗Check the expiration date printed on each of the ink cartridges. If the 
cartridge is too old, replace it as described on page 159. 
◗Make sure the Media Type setting in the printer software is correct.
◗Run a nozzle check and cleaning cycle (see page 154). 
◗Check the ink indicators and light and replace ink cartridges if your ink supply 
is low, as described on page 159. (If you replace ink cartridges with the 
printer turned off, the ink...

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Solving Operational Problems
If you can’t turn the printer on, if it stops printing unexpectedly, or if 
nothing prints, check the following: 
Paper is loaded correctly. 
The printer is plugged securely into a working electrical outlet that’s not 
controlled by a switch or timer.
The interface cable is securely connected to the printer and your system.
The voltage supplied by the electrical outlet matches the voltage on the 
printer’s rating label. If not, turn off the power and...

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Solving Miscellaneous Printing Problems
If your printouts are not what you expected, try the suggestions below:
Nothing prints. ◗Turn off the printer and computer. Make sure the interface cable is securely 
plugged in. Then restart the printer and computer.
◗Make sure the interface cable meets the requirements; see page 13 or 14.
◗The printer port setting doesn’t match the printer connection port 
(Windows).
Windows Vista: Click   > Control Panel > Hardware and Sound > 
Printers....

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Blank paper is printed.◗Make sure your software is installed correctly and the printer is selected. 
◗Make sure the Paper Size setting in your printer software is correct for the 
paper you’re using. 
◗Make sure the Paper Source setting in your printer software is correct. 
A ruled line on your print 
appears to shift.◗Align the print head as described on page 158.
◗Run a nozzle check and cleaning cycle; see page 154.
Color images print in black 
only.◗Make sure the Color setting...

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Solving Paper Problems
If paper feed or paper jam problems occur frequently, try one or more of the 
following solutions:
For roll paper, try adjusting the Paper Suction setting. See page 83 for 
more information. You can also adjust this setting through your printer 
driver.
For heavy or thick media, follow the instructions on page 76 to load the 
media correctly.
Make sure the paper is not folded, wrinkled, or damp.
Make sure the printer’s environment falls within the required...

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Fixing Paper Eject Problems
If the paper is curled too tightly to eject properly, make sure the paper guides 
are attached to the printer. There are two paper guides for the Epson Stylus 
Pro 7900 and five for the Pro 9900.
Attach the guides to the bottom of the printer as shown:
Do one of the following:
If you are feeding paper in front of the printer, 
move the guides to the forward position.
If you are feeding paper backward (under the 
printer), gently squeeze the paper...