BJ-C820 821BK/C/M/Y (x2) compatible with the following printers
PIXMA iP4680	PIXMA MP628	PIXMA MP638	PIXMA MP988
PIXMA iP3680	PIXMA MP545	PIXMA MX868	PIXMA MP568
PIXMA MP558	PIXMA iP4760	PIXMA MP648	PIXMA MP996
PIXMA MX876	PIXMA iP4700