HP Designjet L25500 Printer series

250 Chapter 6 Ink Supplies
Ink Supplies
The Printhead cleaning kit for the HP Designjet L25500 Printer series is the HP 789 Printhead cleaning kit
P/N CH621A. It consists of two main items: Printhead Cleaning Cartridge and Ink Funnel.
Printhead Cleaning Container
In order to check the status of the printhead nozzles, the printer expels a few drops of ink from each nozzle
of each printhead into printhead cleaning cartridge and container. This is done at the start of each print
job, during printing, whenever a printhead is replaced, and whenever you request a printhead check.
The Printhead cleaning container for the HP Designjet L25500 Printer series is the HP 789 Printhead
Cleaning kit P/N CH622A.
General Information About the Ink Supplies
For optimum results from the printer and modular ink delivery system always follow these guidelines when
handling the ink supplies:
• Install the Ink Cartridges, Printheads, and Maintenance Cartridge before the install-by date, which is
printed on the packaging. The expiration for the Ink Cartridges is the manufacturing date marked on
the cartridge plus 30 months.
• Allow the Printer and the Maintenance Cartridge to automatically clean the Printheads.
• Follow the instructions on the front panel of the Printer during installation.
• Avoid unnecessary removal of the Ink Cartridges and Printheads.
• When turning off the Printer always use the power Off button on the front panel. The Printheads are
then stored correctly which prevents them from drying out.
• The Ink Cartridges should never be removed while the printer is printing. They should only be
removed when the printer is ready for you to replace them. The front panel will guide you through
the removal and installation procedure.