C3400n User’s Guide
Toner cartridge replacement
The toner used in this printer is a very fine dry powder. It is
contained in four cartridges: one each for cyan, magenta,
yellow and black.
Have a sheet of paper handy so that you have somewhere to
place the used cartridge while you install the new one.
Dispose of the old cartridge responsibly by placing it inside the
pack that the new one came in. Follow any regulations,
recommendations, etc., which may be in force concerning
If you do spill any toner powder, lightly brush it off. If this is
not enough, use a cool, damp cloth to remove any residue. Do
not use hot water, and never use solvents of any kind. They
will make stains permanent.
Before changing the toner cartridge, switch off the printer and
allow the fuser to cool for about 10 minutes before opening the
1.Press the cover release and open the printer’s top cover fully.
To avoid toner wastage and possible toner sensor
errors, do not change the- toner cartridge(s) until
“TONER EMPTY” is displayed through the Status
If you inhale any toner or get it in your eyes, drink a
little water or bathe your eyes liberally in cold water.
Seek medical attention immediately.
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