Canon MC-31 Maintenance Cartridge (1156C005) collects excess ink produced during printer cleaning and normal startup routines. It serves as a receptacle for waste ink and is required for printer operation, helping contain ink removed during these processes.
The cartridge is designed for user replacement. It is listed for Canon imagePROGRAF TM-200, TM-205, TM-300 and TM-305 printers, and Canon identifies the MC-31 for its imagePROGRAF TA and TM series. This maintenance part supports the printer’s routine ink management during use.