Epson EPL N2550DTT User Manual

							Troubleshooting251
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Half-tone images print unevenly
Toner smudges
Cause What to do
Your paper may be moist or damp. Do not store paper in a humid or damp 
environment. Be sure to use paper that is 
newly unwrapped.
There may be no toner left in the 
imaging cartridge.If the message on the LCD panel or in 
EPSON Status Monitor indicates that the 
amount of toner left is low, see Replacing 
an imaging cartridge on page 214.
You can also check the remaining toner 
with the following symbols on the Basic 
Settings tab in the printer driver.
Toner low: !
Toner end: ×
The gradation setting is too small 
when printing graphics.On the Basic Settings tab in the printer 
driver, click the Advanced and select the 
More Settings button. Then select the 
Halftoning.
Cause What to do
Your paper may be moist or damp. Do not store your paper in a humid or 
damp environment.
You may not be using the correct 
type of paper for your printer.EPSON special paper or smooth, 
high-quality copier paper is 
recommended for best results. See 
Available paper types on page 276 for 
information on choosing paper.
The paper path inside the printer 
may be dusty.Turn off the printer. Clean internal printer 
components by printing three pages with 
only one character per page.
 
						

							252Troubleshooting
Areas are missing in the printed image
Completely blank pages are output
Cause What to do
Your paper may be moist or damp. This printer is sensitive to moisture 
absorbed by the paper. The higher the 
moisture content in the paper, the lighter 
the printout. Do not store paper in a humid 
or damp environment.
You may not be using the correct 
type of paper for your printer.If the surface of your paper is too rough, 
printed characters may appear distorted 
or broken. EPSON special paper or 
smooth, high-quality copier paper is 
recommended for best results. See 
Available paper types on page 276 for 
information on choosing paper.
Cause What to do
The printer may have loaded more 
than one sheet at a time.Remove the paper stack and fan it. Tap it 
on a flat surface to even the edges, then 
reload the paper.
There may be no toner left in the 
imaging cartridge.If the message on the LCD panel or in 
EPSON Status Monitor indicates that the 
amount of toner left is low, see Replacing 
an imaging cartridge on page 214.
You can also check the remaining toner 
with the following symbols on the Basic 
Settings tab in the printer driver.
Toner low: !
Toner end: ×
The problem may be with your 
application or interface cable.Print out a status sheet. See Printing a 
Status Sheet on page 245. If a blank page 
is ejected, the problem may be with the 
printer. Turn off the printer and contact 
your dealer.
The Paper Size setting may be 
incorrect.Make sure the correct paper size is set in 
the Tray Menu on the control panel.
 
						

							Troubleshooting253
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The printed image is light or faint
MP Tray Size setting may be 
incorrect.When loading paper for which the size is 
not specified with Auto setting, specify 
the correct paper size on the MP Tray Size 
setting in the Tray Menu on the control 
panel.
The cartridge seal may not be 
pulled out of the imaging cartridge.Make sure that the cartridge seal has 
been pulled out completely. See 
Replacing an imaging cartridge on 
page 214 for details.
The MP tray cover is not attached 
correctly.Check the MP tray cover. Next, remove 
the imaging cartridge and confirm that 
there is no paper remaining in the printer, 
then reinstall the imaging cartridge. 
Cause What to do
Your paper may be moist or damp. Do not store your paper in a humid or 
damp environment.
The Toner Save mode may be on. Turn off the Toner Save mode using the 
printer driver or the printer’s control panel 
menus. To modify the Toner Save mode 
using the printer driver, select the 
Advanced in the Basic Settings tab, and 
click the More Settings button. Deselect 
the Toner Save check box in the More 
Settings dialog.
There may be no toner left in the 
imaging cartridge.If the message on the LCD panel or in 
EPSON Status Monitor indicates that the 
amount of toner left is low, see Replacing 
an imaging cartridge on page 214.
You can also check the remaining toner 
with the following symbols on the Basic 
Settings tab in the printer driver.
Toner low: !
Toner end: ×
The Density setting may be too low. Increase the Density setting in the Printing 
Menu on the control panel.
 
						

							254Troubleshooting
The non-printed side of the page is dirty
Memory Problems
Print quality decreased
Insufficient memory for current task
Insufficient memory to print all copies
Cause What to do
Toner may have spilled onto the 
paper feed path.Clean internal printer components by 
printing three pages with only one 
character per page.
Cause What to do
The printer cannot print in the 
required quality level because of 
insufficient memory, and the printer 
lowers the quality automatically so 
that the printer can continue 
printing.Check to see if the printout is acceptable. 
If not, add more memory for a permanent 
solution or lower print quality temporarily 
in the printer driver.
Cause What to do
The printer has insufficient memory 
for current task.Add more memory for a permanent 
solution or lower print quality temporarily 
in the printer driver.
Cause What to do
 
						

							Troubleshooting255
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Paper Handling Problems
Paper does not feed properly
The printer does not have sufficient 
memory to collate print jobs.Only one set of copies will be printed. 
Reduce the contents of print jobs, or add 
more memory. For information on 
installing more memory, see Memory 
Module on page 202.
Cause What to do
The paper guides are not set 
correctly.Make sure that the paper guides in all the 
paper cassettes are set in the correct 
paper size positions.
The paper source setting may not 
be correct.Make sure that you have selected the 
correct paper source in your application.
There may be no paper in the paper 
cassettes.Load paper into the selected paper 
source.
The size of loaded paper differs from 
the control panel setting.Make sure that the correct paper size is 
set in the control panel’s Paper Source 
and MP Tray Size settings.
Too many sheets may be loaded in 
the paper cassette.Make sure that you have not tried to load 
too many sheets of paper. For the 
maximum paper capacity for each 
paper source, see MP tray on page 38.
If paper does not feed from the 
optional 550-Sheet Universal Paper 
Cassette Unit, the unit may not be 
installed properly.For instructions on installing the unit, see 
550-Sheet Universal Paper Cassette Unit 
on page 194.
 
						

							256Troubleshooting
Problems Using Options
To confirm your options are installed correctly, print a status 
sheet. See Printing a Status Sheet on page 245 for details.
The message Invalid AUX /IF Card appears on 
the LCD panel
Paper does not feed from the optional paper 
cassette
Cause What to do
The printer cannot read the 
installed optional interface card.Turn off the computer, then remove the 
card. Make sure the interface card is of a 
supported model.
Cause What to do
The optional lower paper cassette 
may not be installed properly.See 550-Sheet Universal Paper Cassette 
Unit on page 194 for instructions on 
installing an optional paper cassette unit.
The paper source setting may not 
be correct.Make sure you have selected the proper 
paper source in your application.
There may be no paper in the paper 
cassette.Load paper.
Too many sheets may be loaded in 
the paper cassette.Make sure that you have not tried to load 
in with too many sheets of paper. For the 
maximum paper capacity for each 
paper source, see MP tray on page 38, 
Standard lower paper cassette on page 
39, and 550-Sheet Universal Paper 
Cassette Unit on page 39.
The paper size is not set correctly. Make sure that the correct paper size is 
selected in the Tray Menu on the control 
panel.
 
						

							Troubleshooting257
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Feed jam when using the optional paper 
cassette
An installed option cannot be used
Correcting USB Problems
If you are having difficulty using printer with a USB connection, 
see if your problem is listed below, and take any recommended 
actions.
USB connections
USB cables or connections can sometimes be the source of USB 
problems. Try one or both of these solution.
❏For best results, you should connect the printer directly to the 
computer’s USB port. If you must use multiple USB hubs, we 
recommend that you connect the printer to the first-tier hub.
Cause What to do
The paper is jammed at the 
optional paper cassette.See Clearing Jammed Paper on page 
231 to clear jammed paper.
Cause What to do
The installed option is not defined in 
the printer driver.You have to make settings manually in the 
printer driver. See Making Optional 
Settings on page 85.
 
						

							258Troubleshooting
Windows operating system
Your computer must be a model pre-installed with Windows XP, 
Me, 98, 2000, or Server 2003, a model that was pre-installed with 
Windows 98 and upgraded to Windows Me, or a model that was 
pre-installed with Windows Me, 98, 2000, or Server 2003, and 
upgraded to Windows XP. You may not be able to install or run 
the USB printer driver on a computer that does not meet these 
specifications or that is not equipped with a built-in USB port.
For details about your computer, contact your dealer.
Printer software installation
Incorrect or incomplete software installation can lead to USB 
problems. Take note of the following and perform the 
recommended checks to ensure proper installation.
Checking printer software installation for Windows XP, 2000, 
or Server 2003
When using Windows XP, 2000, or Server 2003, you must follow 
the steps in the Setup Guide packed with the printer to install the 
printer software. Otherwise, Microsoft’s Universal driver may be 
installed instead. To check if the Universal driver has been 
installed, follow the steps below.
1. Open the Printers folder, then right-click the icon of your 
printer.
2. Click Printing Preferences on the shortcut menu that 
appears, then right-click anywhere in the driver.
 
						

							Troubleshooting259
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If About is displayed in the shortcut menu that appears, click 
it. If a message box with the words “Unidrv Printer Driver” 
appears, you must reinstall the printer software as described 
in the Setup Guide. If About is not displayed, the printer 
software has been installed correctly.
Note:
For Windows 2000, if the Digital Signature Not Found dialog box 
appears during the installation process, click Yes. If you click No, you 
will have to install the printer software again.
For Windows XP or Server 2003, if the Software Installation dialog box 
appears during the installation process, click Continue Anyway. If 
you click STOP Installation, you will have to install the printer software 
again.
Checking printer software in Windows Me or 98
If you canceled the plug-and-play driver installation in Windows 
Me or 98 before the procedure was complete, the USB printer 
device driver or the printer software may be incorrectly installed. 
Follow the directions below to ensure that the driver and printer 
software are installed correctly.
Note:
The screen shots shown in this section are taken from Windows 98. 
Windows Me screens may differ slightly.
 
						

							260Troubleshooting 1. Access the printer driver, see Accessing the printer driver 
on page 58, then click the Details tab.