Canon imageCLASS 2300 Reference Manual page 144

3
Using the tweezers, insert a new stamp cartridge into the
feeder until a "click" is heard.
IMPORTANT
Set the stamp cartridge so that the two projections on the cartridge are aligned with
the hollows on the feeder.
Be careful that the stamping surface of the stamp cartridge does not protrude.
Incorrect installation of the stamp cartridge may cause a paper jam.
4
Close the inner cover, then close the feeder cover until a
"click" is heard.
Replacing the Stamp Cartridge
6
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