The Canon MC-16 Maintenance Cartridge is a necessary component of
the imagePROGRAF iPF600, iPF605, iPF610, iPF6000S, iPF6100, iPF6200,
iPF6300, iPF6300S, iPF6350, & iPF6400 printers. It serves as the
receptacle for waste ink during cleaning and normal startup subroutines,
and is required for operation. Periodic exchange of the MC-16 assures
the highest quality printing results with your imagePROGRAF printer.
Your printer's software will indicate the status of your MC-16, and for
best results it should be exchanged at ~80% capacity.