Canon BJC-80 User Manual page 51

Switching the BJ Cartridges
Follow these instructions to change cartridges when you want to switch from
color printing to high-speed black printing (or vice versa).
You also follow these steps to replace a used BJ cartridge. However, you only need to replace a BJ
cartridge if for some reason the print head becomes damaged (see Appendix A, Specifications, for
cartridge life expectancy). If a BJ tank is out of ink, see the next section (page 4-17) for instructions on
how to replace it. Typically, you will replace the BJ tanks in a BJ cartridge numerous times before you
need to replace the BJ cartridge itself.
Before you begin, make sure the paper support is open and the power is on.
Press the
CARTRIDGE button.
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The cartridge holder moves to the center.
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