Lexmark 310 User Manual page 30

4
Remove the old cartridge.
Installing a print cartridge
1
If you are installing a new print cartridge, remove the sticker and
transparent tape from the bottom of the print cartridge.
Warning:
2
Unless it is already open, press down on the cartridge lever to open
the cartridge lid.
1
2
Do not touch the gold contact area on the back or the
nozzles on the bottom of the cartridge.
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