Lexmark E240n User Manual

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How to know when you need new supplies
Recognizing the operator panel light sequences
The operator panel displays certain light sequences to let you know when the toner level is low or when it’s time to replace 
the photoconductor kit. 
Note:The operator panel may also display other light sequences in conjunction with the “Toner low” and 
“Replace photoconductor kit” lights.
Printer conditionTo n e r  l o wPhotoconductor kit 
life warningReplace 
photoconductorReplace 
photoconductor
(printer hard...

92
How to change a toner cartridge
How to change a toner cartridge
1Open the front cover by pressing the button on the left side of the printer and lowering the cover.
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How to change a toner cartridge
2Remove the toner cartridge:
aPress the button on the base of the print cartridge assembly.
bPull the toner cartridge up and out using the handle.
3Unpack the new toner cartridge.
Note:You can use the packing material from the new cartridge to ship the old cartridge back to Lexmark for 
recycling. See Recycling Lexmark products on page 95 for more information.
4Firmly shake the cartridge in all directions to distribute the toner.
a
b
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How to change a toner cartridge
5Install the new toner cartridge by aligning the white rollers on the toner cartridge with the white arrows on the 
tracks of the photoconductor and pushing the toner cartridge in as far as it will go. The cartridge clicks into place 
when correctly installed.
6Close the front cover.
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Recycling Lexmark products
Recycling Lexmark products
To return Lexmark products to Lexmark for recycling:
1Visit our Web site:
www.lexmark.com/recycle
2Follow the instructions on the computer screen.
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How to change a photoconductor kit
How to change a photoconductor kit
Warning:When replacing a photoconductor kit, do not leave the toner cartridge or the new photoconductor kit 
exposed to direct light for an extended period of time. Extended light exposure can cause print quality 
problems.
1Open the front cover by pressing the button on the left side of the printer and lowering the cover.
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How to change a photoconductor kit
2Pull the print cartridge assembly out of the printer by pulling on the toner cartridge handle.
Note:Do not press the button on the print cartridge assembly.
Place the print cartridge assembly on a flat, clean surface.
3Remove the toner cartridge:
aPress the button on the base of the print cartridge assembly.
bPull the toner cartridge up and out using the handle.
4Unpack the new photoconductor kit.
a
b
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How to change a photoconductor kit
5Install the toner cartridge into the new print cartridge assembly by aligning the white rollers on the toner cartridge 
with the white arrows on the tracks of the photoconductor and pushing the toner cartridge in as far as it will go. 
The cartridge clicks into place when correctly installed.
6Install the print cartridge assembly into the printer by aligning the green arrows on the guides of the print cartridge 
assembly with the green arrows on the tracks in the...

99
11Troubleshooting
General problems
Problem / QuestionSolution / Answer
What do the blinking lights 
mean?See Understanding the operator panel lights on page 53 for information about what each 
light pattern means.
Why am I missing 
characters when I print on 
envelopes?If you see voids (missing characters) when printing envelopes, check your printer driver 
settings to make sure you selected Envelope from the Paper Type menu. 
If Envelope is already selected, try changing the texture setting to a...

100
General problems
How do I restore the 
factory defaults?Sometimes restoring the printer to the original factory default settings solves formatting 
problems.  To reset the factory defaults:
1Turn off the printer.
2Open the front cover.
3Press Continue as you turn the printer back on.
4Keep pressing Continue until the Error light comes on, then release the Continue button.
5Close the front cover.
6As the printer warms up, the top four lights come on.
7Press Cancel.
8Press Continue until the operator...