HP Maintenance Cartridge is designed together with the Designjet printer to provide consistent results and reliable performance. Clear, crisp lines and text, every time you print. Reliable, trouble-free printing to avoid the trial and error that costs you time. HP Maintenance Cartridge is designed with the printing system to enhance the reliability and ease-of-use of your printer over time. Suitable for Designjet Z6100 42-in, Z6100 60-in, Z6100ps 42-in, Z6100ps 60-in.