Treat your Designjet Z6100 large format printer to a complete spring cleaning by installing this HP 771 Maintenance Cartridge, an essential piece of kit for trouble free, smooth operation when you need it most. Slotting into the right side of your printer, this cartridge assists in cleaning the printheads to prevent clogging and blockages from ruining your prints. It also helps seal the printheads when not in use to prevent them drying out. Make sure you replace the maintenance cartridge as soon as possible when alerted, leaving a used cartridge in the machine can result in high costs to repair.