HP 761 Matte Black & Matte Black Printhead CH648A
HP 761 Gray & Dark Gray Printhead CH647A
HP 762 Dark Gray Printhead CN074A
Maintenance Cartridge
Use the Maintenance Cartridge to clean and maintain the Printheads, ensure the best possible print
quality, and seal the Printheads when they are not in use to prevent them from drying out.
The Maintenance Cartridge for the color printer is the HP 761 Maintenance Cartridge, part number
CH649A; the monochrome printer uses the HP 762 Maintenance Cartridge, part number CM998A.
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:
●
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.
NOTE: The expiration date for the Ink Cartridges, Printheads and Maintenance Cartridge is printed
on the packaging.
NOTE: When reporting a system error code, make sure that you supply the full error code and the
firmware version. Without this information, HP support personnel cannot help you.
General precautions when handling ink supplies
CAUTION: Do not touch, wipe or attempt to clean the printhead nozzles. This can damage the
printhead.
●
Handle the ink supplies with care. In particular the Printhead, which is a high precision device and
must be handled carefully.
●
Do not touch the Printhead nozzles.
ENWW
General information about the ink supplies
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