C9345 Ink Maintenance Box also Works with:, WorkForce EC-C7000, WorkForce Pro WF-7840, WorkForce Pro WF-7820, WorkForce ST-C8000, EcoTank Pro ET-16600, EcoTank Pro ET-16650, EcoTank Pro ET-5880, EcoTank Pro ET-5850, EcoTank Pro ET-5800
The C9345 Ink Maintenance Box stores ink that gets flushed from the system during print head cleaning. the maintenance box needs to be replaced when it is full.