Lexmark 280 - Manual (Page 166)

2 Pull up and out on the green tabs of the specified cartridge to remove it from the printer.
3 Shake the cartridge front to back and side to side to redistribute the toner.
4 Reinsert the cartridge to continue printing.
5 Repeat this process multiple times until printed text and graphics remain faded.
When printed text and graphics remain faded, replace the specified cartridge. Repeat steps 1 and 2, and then
follow the steps below.
Maintaining the printer
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