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...

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...

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...

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...

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...

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...

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...

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...

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...

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