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 stop)
*
For more information, see page:63646465
Continue
Ready
To n e r  L o w /
Replace PC Kit
Load Paper
Paper Jam
Error
* If the operator panel lights display this sequence, the printer will not print any more jobs until the photoconductor kit is 
replaced.
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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 printer and pushing the print cartridge assembly in as far as it 
will go.
7Close the front cover.
Note:For information about resetting the imaging drum counter, see the instruction sheet that shipped with 
the new kit.
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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 rougher setting. 
Sometimes toner does not adhere well to smooth-textured envelopes. From your printer 
driver, select Custom 6-Rough Env from the Paper Type menu.
To change Custom 6 back to its default settings for Paper Type, Paper Texture, and Paper 
Weight, use the Local Printer Setup Utility on the drivers CD that shipped with your printer. If 
you already installed the printer drivers and utilities, skip to step 7.
1Insert the drivers CD into your computer.
2Click Printer Software.
3Click Agree.
4Select Local Printer Install, and then click Next.
5Select your printer and port, and make sure Local Printer Setup Utility is checked.
6Click Finish.
The Utility will be installed on your computer under Program Files (unless you chose a 
different directory).
7Open the Local Printer Setup Utility.
8From the Paper menu, scroll through the menu items until you see the Custom menu 
setting.
9Click Custom.
10Scroll down to Custom 6 Paper Type.
11Select envelope for the Custom 6 paper type, heavy for the Custom 6 paper weight, and 
rough for the Custom 6 paper texture. 
12From the toolbar, click Actions.
13Click Apply to save the changes you made.
14Click FileÆ Exit to close the Local Printer Setup Utility.
How do I clear a paper 
jam?See How to clear paper jams on page 34 for information about clearing jams.
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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 panel cycles through all of the lights.
9When the top four lights come on, release the Continue button.
10Turn the printer off and back on.
11Factory defaults have been reset.
The toner low light 
sequence is on, but I don’t 
have another cartridge to 
put in yet. Can I still print 
with the low cartridge?Yes, you can still print. To extend the life of the toner cartridge somewhat, remove the 
cartridge, firmly shake it from side to side and front to back several times to use the remaining 
toner, then insert it back into the printer. Repeat this procedure multiple times. If print remains 
faded, replace the toner cartridge.
The printer seems to print 
slower when using the 
manual feeder.This is normal. The printer sometimes prints at a slightly slower speed when feeding print 
media from the manual feeder.
I want to manually duplex 
card stock, but I’m having 
trouble getting it to feed.The problem is that when the printer tries to manually duplex a print job, it always prints side 2 
from Tray 1. However, Tray 1 does not support card stock.
To achieve the desired effect, you have to send both pages of the print job as separate jobs. 
After the first page has printed, reload the card stock in the manual feeder. Load the card 
stock in the feeder with the already-printed side down, with the top of the sheet first.
Paper stacks poorly in the 
output bin.Extend the paper 
support on the 
output bin.
Problem / QuestionSolution / Answer
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