This print head carriage assembly with carriage cover is compatible with DesignJet 500, 500ps, 510, 750c, 800, 800ps, 820MFP, 4500, 5500, and T1100 MFP printers.It corresponds to part numbers C7769-69376, C7769-60376, C7769-69272, C7769-60151, C7769-60272, and C7769-60152.This component is designed to restore printer function and fits the specified models.