Canon BJC-250 - Manual (Page 61)

3
If you are replacing an old BJ
cartridge, dispose of the old
cartridge properly.
If you are switching cartridges,
you must store the cartridge you
are removing in the Ink Cartridge
Storage Box. Store or
dispose of the
BJ cartridge.
4
Peel off the protective foil. Take the new BJ
cartridge out of
its protective
packaging.
5
Slide off the cap from the
print head, and then remove
the tape. Remove the
protective
material from
the BJ
cartridge.