Xerox DocuPrint N4525 User Manual page 78

Wrap the used Laser Print Cartridge by placing it in its original
packing and return it as directed.
3.
Remove the new Laser Print Cartridge from its package and pull
out the protective paper sheet from the drum shutter. Hold the
Laser Print Cartridge horizontally and gently shake it 5 or 6 times
to evenly distribute the toner inside.
4.
Hold the handle with one hand and gently push the Laser Print
Cartridge all the way into the printer.
Caution
To avoid possible injury, do not touch any parts inside the
printer, as they may be hot. Make sure that the cartridge is
firmly seated in the printer.
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