Maintenance Cartridge for the Canon PRO-2000, Canon PRO-4000, Canon PRO-4000s and Canon PRO-6000Posted June 21 2019
What is the maintenance cartridge?
It serves as a receptacle for waste ink during cleaning, normal startup procedures and full-bleed printing. Sometimes it is also referred to as maintenance tank.
When do I replace it?
The Canon printer will indicate when the maintenance cartridge is about 75% full (on computer screen and by flashing the orange light bar above the printer screen). At this time, you should order a new maintenance cartridge, but do not replace it until the printer tells you to replace it.
Can I continue to print if the maintenance cartridge is full?
No. Once the cartridge is full it cannot be used. And there is nothing that can be done, except to replace it with a new one.