These printers use the CLI-221BK cartridge:

Canon Pixma IP-3600

Canon Pixma IP-4600

Canon Pixma IP-4700

Canon Pixma MP-540

Canon Pixma MP-550

Canon Pixma MP-560

Canon Pixma MP-620

Canon Pixma MP-630

Canon Pixma MP-640

Canon Pixma MP-640 R

Canon Pixma MP-980

Canon Pixma MP-990

Canon Pixma MX-860

Canon Pixma MX-870

Canon Pixma PMFP 1

Canon Pixma PMFP 3

Canon Pixma SFP 1

Canon Pixma SFP 2

Canon PIXUS MP-610

Canon PIXUS MX-860