Dell 2355 Mono Laser User Manual page 254

Thoroughly shake the cartridge from side-to-side 5 or 6 times to distribute the toner
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evenly inside the cartridge.
NOTE:
If toner comes into contact with your clothing, wipe the toner off with a dry cloth and
wash your clothing in cold water. Hot water sets toner into fabric.
CAUTION:
Do not touch the green underside of the toner cartridge. Use the handle
on the cartridge to avoid touching this area.
Holding the toner cartridge by the handle and slowly insert the cartridge into the opening
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in the printer.
Tabs on the sides of the cartridge and corresponding grooves within the printer will guide
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the cartridge into the correct position until it locks into place completely.
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