The Canon Maintenance Cartridge MC-30 is an essential accessory for Canon large-format printers.  

It helps to maintain the printer's optimal performance by collecting excess ink during the cleaning process.  

This cartridge is designed to handle the waste ink that accumulates in the printer's print head and purging system, preventing any clogging or damage.  

The MC-30 is easy to install and replace, and it can hold a large amount of waste ink, making it a cost-effective solution for keeping your Canon printer in top working condition.  

Overall, the Canon Maintenance Cartridge MC-30 is an essential component for maintaining the quality and reliability of your Canon large-format printer.