Lexmark E240n

4511-xxx
2-108 Service Manual
The printer is on, but
nothing prints.
• Make sure the toner cartridge assembly is
installed properly.
• Make sure the parallel or USB cable is not
damaged and is firmly plugged into the
connector on the back of the printer.
• Press and release to print a menu
settings page (E238, E240, E240n), or press
Menu to select Utilities Menu, and then select
Print Menus (E340, E342n).
–If you cannot print a menu settings page,
contact the next level of support.
–If you can print a menu settings page, the
problem is one of the following:
• Computer
• Software program
•Cable
• (USB only) failed ASIC or controller card.
Replace card.
Note: Test by unplugging USB and
replugging it with the printer on. If the
computer indicates “unknown device,”
replace the card.
Toner Low light is on
and printing stops.
If you are using a 3,000 or 6,000 page toner
cartridge and the Toner Low alarm is set to on,
the printer stops printing until you replace the
toner cartridge.
Download the correct Lexmark setup utility from
the Lexmark Web site at www.lexmark.com to
change the Toner Low alarm.
The Error light is on
(E238, E240, E240n).
Make sure the printer cover is closed.
The Toner Low light is
blinking, and the Error
light is on (E238, E240,
E240n).
• Make sure the toner cartridge is installed
correctly.
• Install a new toner cartridge.
The media skews or
buckles.
• Don’t overfill Tray 1 or the optional Tray 2 (see
media capacities in the media types and sizes
table in the User’s Reference).
• Make sure the paper guides are flush against
the edges of the media.
Print quality problems (continued)
Problem Action