Lexmark E450dn User Manual

Accessing the system board
31
Installing options
2Press button on the left side of the printer to release and lower the front door.
3Open the rear exit.
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Accessing the system board
32
Installing options
4Press both buttons on the front right side of the machine to release the side access door.
5Loosen the four screws of the cover to gain access to the system board.
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Adding a memory card
33
Installing options
Adding a memory card
The system board has one connector for an optional memory card.
Note:Memory options designed for other Lexmark printers may not work with your printer.
1Access the system board (see Accessing the system board on page 30).
2Push open the latches on both ends of the memory connector.
3Unpack the memory card.
Warning:Memory is easily damaged by static electricity. 
Touch something metal, such as the printer frame, 
before you touch a memory...

Adding a flash memory card
34
Installing options
3Squeeze the retainers, and align the plastic pins on the flash memory card with the holes on the system board.
4Push the flash memory card firmly into the holes of the system board until it snaps into place.
Note:The flash card can be installed in the top or the bottom set of connector pin holes.
5Close the side access door.
6Close the rear exit door.
7Close the front door.
8Plug the power cord into the wall outlet and turn the printer on to continue...

Installing an optional 550-sheet drawer
35
Installing options
Installing an optional 550-sheet drawer
Place the printer unit directly on top of the 550-sheet drawer.
Recognizing installed options
The printer driver should automatically recognize the newly-installed option when the printer is turned on. If it does not, you 
can add the appropriate option manually.
1Click StartÆ SettingsÆ Printers.
2Select the printer icon.
3Click FileÆ Properties.
4Click the Install Options tab.
5Add the appropriate...

Maintaining the printer
36
5Maintaining the printer
Periodically, you need to complete certain tasks to maintain optimum print quality. These tasks are covered in this chapter.
If several people are using the printer, you may want to designate a key operator to do the setup and maintenance of your 
printer. Refer printing problems and maintenance tasks to this key operator.
In the U.S., contact Lexmark at 1-800-539-6275 for information about Lexmark Authorized Supplies Dealers in your area. In 
other...

Conserving supplies
37
Maintaining the printer
Conserving supplies
Several settings in your application software or on the display let you conserve toner and paper. For more information on 
changing these settings, see the Menus and Messages Guide.
Ordering supplies
To order supplies in the U.S., contact Lexmark at 1-800-539-6275 for information about Lexmark Authorized Supplies 
Dealers in your area. In other countries or regions, visit the Lexmark Web site at www.lexmark.com, or contact the place...

Ordering supplies
38
Maintaining the printer
Ordering a toner cartridge
When the 88 Toner Low message appears, you should order a new toner cartridge. You can print a few hundred pages 
after the 88 Toner Low message appears. You need to have a new cartridge available when the current one no longer 
prints satisfactorily.
Part numberDescriptionAverage cartridge yield
Wo r l d  W i d e
E250X22G Photoconductor kit Up to 30,000 standard pages
1
For the USA and Canada3
E450A21A Toner Cartridge 6,000 standard...

Ordering supplies
39
Maintaining the printer
Changing a toner cartridge
1Turn the printer off.
2Press the button on the left side of the printer to release and lower the front door.
3Remove the toner cartridge.
aPress the release button on the base of the print cartridge assembly.
bGrasp the handle, pulling up and out to remove the toner cartridge.
2
1
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Ordering supplies
40
Maintaining the printer
4Unpack the new toner cartridge.
Note:You can use the packing material from the new toner cartridge to ship the old toner cartridge back to 
Lexmark for recycling. For more information, see Recycling Lexmark products on page 44.
5Firmly shake the toner cartridge in all directions to distribute the toner.
6Install 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...