The product code C13T671298 (also commonly referred to as T6712 or PXMB4) is an Ink Maintenance Box designed for specific high-volume, professional-grade Epson WorkForce Pro printers.
 
Contains internal absorbent pads that collect all waste ink produced during the printer's operation.
Prevents ink build-up, leaks, and clogs inside the printer's mechanism, which is critical for maintaining high print quality and extending the printer's lifespan.