Lexmark MX810 Series User Manual page 259

Maintaining the printer
2
Pull the cartridge out of the printer using the handle.
3
Unpack the new toner cartridge, then remove the packing material, and then shake the cartridge to redistribute
the toner.
4
Insert the toner cartridge into the printer by aligning the side rails of the cartridge with the arrows on the side rails
inside the printer.
Note: Make sure the cartridge is fully pushed in.
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