The C7769-60373 is a genuine HP OEM Ink Supply Station (ISS) designed for large-format plotters. Installed in the right side of the printer, it includes the ink pump motor, pump sensor, and out-of-ink sensors. This direct plug-and-play replacement is engineered for the following functions and compatibilities:Key FeaturesFunctions: Regulates ink flow, monitors ink levels, and pumps ink to the printheads.Fixes Errors: Effectively resolves system errors (such as Error 22:10), ink system failures, and supply station errors.Hardware Compatibilities: Compatible with the HP Designjet 500, Designjet 500ps, Designjet 510, Designjet 800, Designjet 800ps, Designjet 815 MFP, and Designjet 820 MFP.