Epson Stylus Pro 7890 User Manual

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As you use your printer, you may occasionally experience a problem. You 
can diagnose the problem following the guidelines in this chapter or check 
the FAQs at www.proimaging.epson.com. Then try the most likely solutions 
until the problem is fixed. 
This chapter provides instructions for the following:
Diagnosing problems
Checking error messages and lights
Improving print quality
Solving operational problems
Solving miscellaneous printing problems
Solving paper problems, including clearing...

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Checking Error Messages and Lights
The control panel includes various lights and an LCD screen to indicate the 
status of the printer: 
When your paper runs out, ink is low, or a problem occurs, a message 
appears on the LCD screen, and the lights on the control panel come on or 
flash. The following table lists the messages in alphabetical order and 
includes an explanation and instructions for correcting the problem.
LCD 
screen
Power 
light and 
button
Pause/reset 
light and...

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CANNOT OPEN INK COVERSomething is obstructing the 
indicated ink coverRemove the obstruction and press the  
button again.
CLEANING ERROR
AUTOMATIC HEAD 
CLEANING FAILED
RETRY?
YES
NOHead cleaning did not clear the 
nozzles.Press   to clear the error and run the 
head cleaning utility again. If cleaning 
doesn’t start, cancel printing from the 
computer. Then turn the printer off and back 
on again.
CLEANING ERROR
NOT ENOUGH INK OR 
SPACE IN MAINT TANK.
CONTINUE CLEANING?
YES...

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INK CARTRIDGE ERROR
REPLACE CARTRIDGEInk cartridge(s) may have a bad 
contact or condensation.Remove and reinstall the ink cartridge; if the 
error remains, replace the cartridge. See 
page 153.
INK CARTRIDGE ERROR
PLEASE INSTALL THE 
CORRECT CARTRIDGESYou tried to install an ink 
cartridge that cannot be used 
with this printer.If you are replacing ink cartridges, check the 
package and product code. Replace the ink 
cartridge with a genuine Epson ink cartridge.
INK COVER OPEN...

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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 163.
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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Auto Take-Up Reel Error Messages
If you have the optional Automatic Take-Up Reel System, check the 
following list for error messages that might appear:
PAPER SETTING ERROR
CHECK THE PAPER SOURCE 
IN THE DRIVER SETTINGS 
AND LOAD PAPER 
CORRECTLYThe paper source selected in 
the printer driver and the 
control panel do not match.Check the Paper Source settings and make 
sure the paper is loaded correctly.
PAPER SIZE ERROR
LOAD CORRECT PAPER SIZEThe loaded paper size does not...

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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 148 for instructions.
Align the print head. See page 152 for instructions.
When you send a print job, make sure your print options are set 
correctly. For more information, see page 85 (Mac OS X) or page 107 
(Windows).
If none of these suggestions help, try the solutions in the following table.
ProblemSolution 
Your print has horizontal...

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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 153.
◗Run a nozzle check and cleaning cycle. See page 148 for instructions. 
◗Align the print head, as described on page 152.
◗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 153. 
◗Make sure the Media Type setting in the printer software is correct.
◗Run a nozzle check and cleaning cycle (see page 148). 
◗Check the ink indicators and light and replace ink cartridges if your ink supply 
is low, as described on page 153. (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...