Epson Stylus Pro 7900 User Manual

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Cleaning the Printer
To keep your printer working at its best, clean it if it becomes soiled.
1. If your prints are soiled by ink on the roller, load inexpensive roll paper 
and press d to feed the paper without printing on it. Press d several 
times until the paper is clean. 
2. Turn off the printer and wait until all the lights are off. Then unplug the 
power cord and disconnect the printer from your system.
3. Open the front cover and use canned air or a soft lint-free cloth to 
carefully clean away any dust or dirt inside the printer. 
4. Clean the area shown below in the direction of the arrows. If necessary, 
dampen the cloth, clean the inside of the printer, then dry it with a soft 
cloth.
Caution: Be careful not 
to touch the gears inside 
the printer.
To avoid damaging the 
components as well as 
the case, never use 
alcohol or thinners to 
clean the printer. 
Be careful not to get 
water on the printer 
mechanism or electronic 
components.
Don’t use a hard or 
abrasive brush.
Don’t spray the inside 
of the printer with 
lubricants; unsuitable 
oils can damage the 
mechanism. Contact 
Epson if you think the 
printer needs lubrication.
Do not touch the gray 
area, roller, or absorption 
pads inside the printer; 
otherwise your prints may 
be soiled. 
 
						

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5. If your prints are soiled on the back, wipe the blue area carefully.
6. If powdery dust has accumulated, use a toothpick or similar tool to 
remove it.
7. Remove the paper basket. Then clean away any dust or dirt around the 
leg assembly using a soft brush.
 
						

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8. If the outer case is dirty, clean it with a soft, clean cloth dampened with 
mild detergent. Keep the ink cartridge compartments closed to prevent 
water from getting inside.
9. To wash the paper basket, remove the shafts, then machine wash with 
mild detergent and air dry.
Transporting or Storing the Printer
If you are moving the printer a short distance (for example, in the same 
building), you can roll it on its stand (see page 175). To ship the printer a 
longer distance, you should repack it using the original box and packing 
materials. Follow the instructions below to prepare the printer for shipment.
If you don’t have the original packaging, you can purchase replacement 
packaging from Epson. See page 12 for more information.
Preparing the Printer for Shipment
1. Turn off the printer and wait until the carriage moves to the home 
position (on the far right) and the PPower light goes off. Then unplug 
the printer. 
2. Remove the following parts:
Power cord and interface cables
Paper basket
All paper or other media
Optional Auto Take-Up Reel (if installed)
Optional SpectroProofer Mounter (if installed)
3. Leave the ink cartridges installed. 
 
						

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4. Open the front cover and reinstall the packing material that you 
removed from the print head during setup. Then close the cover.
5. Before you remove the printer from the stand, make sure the casters are 
locked.
6. Remove the two wing nuts and lock washers securing the printer to the 
stand (underneath the printer). Keep them in a safe place.
Tip: For more secure 
transportation, tape all 
doors and covers shut.
 
						

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7. Lift the printer using the hand grips where provided. (See the stickers 
located near the rear hand grips for the correct holding position.) 
8. Keep the printer level while moving it. See page 176 for information 
about setting up the printer after transporting it.
To ship the printer a longer distance, you should repack it using the original 
box and packing materials. If you don’t have the original packaging, you can 
purchase replacement packaging from Epson. See page 12 for more 
information.
Moving the Printer on the Stand
When you need to move the printer a short distance, such as within the same 
building, you can roll the printer on its casters. 
1. Make sure the printer is turned off and the carriage is in the home 
position (on the far right). If not, turn the printer back on, wait until the 
carriage moves to the home position, then turn off the printer. 
2. Disconnect the power cord and interface cable.
3. Remove any paper and close the roll paper cover. Make sure the front 
cover is closed.
4. Store the paper basket as described on page 82.
WARNING: The printer is 
very heavy. Make sure you 
have four people lift it.
Caution: Do not roll the 
printer on angled or 
uneven surfaces.
 
						

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5. Release the front casters.
6. Carefully roll the printer to its new location, then lock the casters. 
Setting Up the Printer After Transportation
Setting up the printer after transporting it is almost identical to setting it up 
for the first time. 
Keep in mind that the first time you start printing after moving the printer, 
the print head nozzles may be clogged—especially if the printer hasn’t been 
turned on for a long time. You may need to run a cleaning cycle (page 154) 
and realign the print head (page 158) to ensure good print quality.
 
						

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177
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 paper jams
Uninstalling and reinstalling the printer driver
Diagnosing Problems
The printer includes a number of ways to help you diagnose problems:
To identify the most common problems, check the messages and lights 
on the control panel. See pages 178 through 182 for more information. 
If you’re using the Epson printer driver and Status Monitor utility, 
check your software for error messages. See page 153 for more 
information.
To determine whether the problem is caused by the printer itself, print a 
status sheet from the control panel. See page 151 for instructions.
Review the FAQs at www.proimaging.epson.com for possible solutions.
If none of the suggested solutions in this chapter solve your problem, 
contact Epson as described under “Where To Get Help” on page 13.
Chapter 6: 
Solving 
Problems
 
						

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Checking Error Messages and Lights
The control panel includes various lights and an LCD display 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 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.
LCD 
display
Power 
light and 
button
Pause/reset 
light and buttonInk 
light
Left arrow or paper 
source button Paper 
light
Menu button
Paper feed up button
Paper feed down buttonOK button
Paper cut 
button
Ink open button
Black ink change buttonPaper release (ePlaten) 
light and button
Message ExplanationResponse
BORDERLESS ERROR
LOAD A SUPPORTED PAPER 
SIZE OR LOAD PAPER 
CORRECTLYThe borderless setting is 
selected and paper that doesn’t 
support borderless printing is 
loaded.Press   to cancel the print job. Change 
the setting in the printer driver or load 
different paper.
The sheet size is not 
recognized.Make sure the paper is flat.
Paper is not loaded correctly. Make sure paper is loaded correctly.
BLACK INK MISMATCHThe black ink setting on the 
printer and in the driver do not 
match.Cancel the print job or press the   button 
to change the black ink setting on the 
printer.
CALL FOR SERVICEAn error has occurred.
The number 3000 indicates that 
the power cord is not 
connected correctly.Note the error number, then turn the printer 
off. Then check the power cord connection 
at both ends and turn it back on. If the 
message remains after restarting the printer 
several times, contact Epson as described 
on page 13.
 
						

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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 (RECOMMENDED)
NONot enough ink or not enough 
maintenance tank capacity for 
head cleaning. Select Yes and replace the cartridge (see 
page 159) or maintenance tank (see 
page 169).
COMMAND ERROR
CHECK DRIVER SETTINGSYou may be using the wrong 
printer driver.
Damaged data was sent to the 
printer or the data has an 
incorrect command.Press the  Pause/reset button to 
cancel the print job and reset the printer. 
Make sure you installed the correct driver 
for your printer. 
CUTTER UNIT NEARING 
END OF SERVICE LIFE. 
RECOMMEND REPLACING 
THE CUTTER UNITThe paper cutter may be dull. Replace the paper cutter; see page 165.
FRONT COVER OPEN
CLOSE COVERFront cover is open. Close the front cover. 
F/W INSTALL ERROR
UPDATE FAILED RESTART 
THE PRINTERFirmware update failed. Restart the printer, then update the 
firmware again; see page 54. 
INK CARTRIDGE
INK LOW REPLACE INK 
CARTRIDGEThe ink cartridge is expended. Replace the ink cartridge; see page 159.
INK CARTRIDGE
NON-GENUINE CARTRIDGE! 
QUALITY OF NON-GENUINE 
INK MAY VARY.A non-genuine ink cartridge is 
installed.Select DECLINE and replace the ink 
cartridge with a genuine Epson ink cartridge; 
see page 159. 
INK CARTRIDGE
PLEASE USE GENUINE 
EPSON INK CARTRIDGESA non-genuine ink cartridge is 
installed.Replace the ink cartridge with a genuine 
Epson ink cartridge; see page 159. 
Message ExplanationResponse
 
						

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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 159.
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
CLOSE INK COVERThe ink cover or covers are 
open.Close the cover(s).
INK LOWInk cartridge(s) are nearly 
expended (printing continues).Make sure you have replacement cartridges 
available; see page 159. Print quality may 
decline when ink is low. 
INK TOO LOW TO CLEAN
REPLACE INK CARTRIDGENot enough ink for head 
cleaning.Replace the cartridge(s) before cleaning; see 
page 159.
INK TOO LOW TO CLEAN
THE CARTRIDGE BEING 
USED CAN BE INSTALLED 
AGAIN FOR PRINTINGNot enough ink for head 
cleaning, but enough for 
printing.Replace the cartridge(s) before cleaning; see 
page 159. After cleaning is finished, you can 
re-use the low ink cartridge.
MAINTENANCE REQUESTA printer part may need to be 
replaced soon. Note the code number and contact Epson as 
described on page 13. 
MAINTENANCE TANK 
NEARLY FULLThe maintenance tank is almost 
full. Make sure you have a replacement 
maintenance tank. For the Pro 9900, note 
which tank is nearly full; see page 169. 
MAINTENANCE TANK 
ERROR
REPLACE THE 
MAINTENANCE TANKThe maintenance tank may be 
incorrectly installed.Reinstall the maintenance tank. If the error 
remains, replace the maintenance tank. For 
the Pro 9900, note which tank needs 
replacement; see page 169.
MAINTENANCE TANK FULL
REPLACE THE 
MAINTENANCE TANKThe maintenance tank is full. Replace the maintenance tank. For the 
Pro 9900, note which tank is full; see 
page 169.
NO CARTRIDGE
INSTALL INK CARTRIDGEInk cartridge(s) not installed, or 
an incorrect cartridge is 
installed.Install ink cartridge(s); see page 159. Do not 
reinstall the incorrect cartridge.
NO MAINTENANCE TANK
INSTALL THE 
MAINTENANCE TANKMaintenance tank is not 
installed. Make sure the maintenance tank is fully 
inserted. For the Pro 9900, note which tank 
is missing; see page 169. 
Message ExplanationResponse