Carriage Assembly Cover for DesignJet 10 20 30 70 90 100 110 120 130 plotter; printhead upper cover Replacement carriage assembly cover designed for use with DesignJet 10, 20, 30, 70, 90, 100, 110, 120, and 130 series plotters.This upper printhead cover protects the internal carriage mechanism and proper alignment during printing operations.The cover is engineered to fit securely in place, helping maintain consistent performance of the plotter's print head assembly.It serves as a direct replacement for damaged or worn parts and supports in standard printing environments.