Epson Stylus Pro 4800 User Manual

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When your ink or paper runs out or a problem occurs, a message appears on 
the LCD display, 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.
Message LightExplanationResponse
CHANGE PAPER 
TYPE Paper light 
onPaper loaded does not 
match the source 
selected. Press the 
 Paper Source button to select the 
correct setting: either 
 (for...

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INVALID INK 
CRTGB Ink light on  You tried to install the 
wrong ink cartridge.If you are installing ink cartridges for the first 
time, you must install the cartridges that came 
with your printer.
If you are replacing ink cartridges, check the 
package and product code. You must use the 
ink cartridges designed for your printer. Other 
cartridges will not work.
LOAD PAPER
 Paper light 
onPaper lever is in the 
released position while 
loading paper.After you finish loading...

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NOZZLES STILL 
CLOGGED— Head cleaning did not 
clear the nozzles.Run the head cleaning utility again. If the 
nozzles are still clogged, contact Epson.
OPTION I/F 
ERROR— Wrong interface card 
installed.Turn off the printer and remove the card. See 
the documentation that came with the card.
PAPER NOT CUT
 Paper light 
flashingRoll paper was not cut 
correctly.
The cutter may be 
blunt or incorrectly 
installed.Open the top cover and remove the uncut 
paper. Reload paper if...

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SERVICE REQ. All lights 
flashing The print head is 
locked.
An error has occurred.Pull out the green tab to unlock the print head. 
See page 18.
Note the error number, then turn the printer off 
and back on. If the message remains, contact 
Epson as described on page 10.
SET INK CRTG— Ink cartridge chip error. Remove and reinstall the ink cartridge. If the 
message remains, replace the cartridge.
SET PAPER 
LEVER
 Paper light 
onPaper lever was 
released during the 
printing...

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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 104 for instructions.
Align the print head. See page 107 for instructions.
When you send a print job, make sure your print options are set 
correctly. For more information, see Chapter 3 (Macintosh) or Chapter 
4 (Windows).
If none of these suggestions help, try the solutions below.
ProblemSolution 
Your print has 
horizontal banding.◗Check the ink...

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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. Replace ink 
cartridges if necessary, as described on page 109.
◗Run a nozzle check and cleaning cycle. See page 104 for instructions. 
◗Align the print head, as described on page 107.
◗Make sure the Media Type setting in the printer software is correct for the media 
you’re printing on. 
◗If you’re using cut sheet media, make sure the printable side is...

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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 109. 
◗Make sure the Media Type setting in the printer software is correct for the media 
you’re printing on.
◗Run a nozzle check and cleaning cycle (see page 104). 
◗Check the ink indicators and light and replace ink cartridges if your ink supply is low, 
as described on page 109.
◗The paper thickness setting is...

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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: 
The printer is turned on.
Paper is loaded in the printer. 
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...

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Solving Miscellaneous Printing Problems
If your printouts are not what you expected, try the suggestions below:
ProblemSolution
The printer stops 
printing 
unexpectedly.◗If the 
 Pause light is flashing, the printer is performing a maintenance procedure or 
waiting for ink to dry. Check the display message and lights on the control panel. 
Wait until the 
 Pause light stops flashing.
◗Check the display message and lights on the control panel to see if an error has 
occurred....

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Your print has incorrect 
margins.◗Check the page size or paper size settings in your application. Make sure they 
are within the printer’s printable area.
◗Make sure the Paper Size and Borderless settings in your printer software are 
correct for the paper you’re using.
◗Paper is loaded incorrectly. Follow the instructions in Chapter 2 to reload the 
paper. 
◗The PAPER MARGIN (roll paper margin) setting on the PRINTER SETUP menu 
is incorrect. If you’re using roll paper, check...