Your Canon printer's throwing an error and telling you to replace the maintenance box. You're not sure what it does, why it's full, or if you can just ignore it.
You can't ignore it. The MC20 is the waste-ink collection cartridge that sits inside your Canon inkjet. When it fills up, the printer stops. Period. Swap it out and you're back in business.
Genuine Canon MC20. Drop-in replacement for the slot your current cart occupies. In stock here — no hunting through a marketplace for a part that ships from overseas
| brand | Canon |
| model | MC20 |
| product_type | Maintenance Cart |
| function | Waste Ink Collection |
| category | Printing |
| subcategory | Printers & Scanners |
