HP Designjet T790 and T1300 ePrinter Series - Using your printer

About the printheads
The printheads are connected to the ink cartridges and jet ink onto the paper.
CAUTION: Observe precautions when handling printheads because they are ESD-sensitive devices
(see the
Glossary on page 210). Avoid touching pins, leads and circuitry.
Check the printhead status
The printer automatically checks and services the printheads after each print. Follow the steps below to
get more information on your printheads.
1.
From the front panel, press
then , then the printhead on which you want information.
2. The front panel displays:
●
Colors
●
Product name
●
Product number
●
Serial number
●
Status, see
Front-panel error messages on page 196
●
Volume of ink it has used
●
Warranty status
You can also get most of this information from the HP Utility.
For an explanation of the printhead status messages, see
Printhead status messages on page 188.
If the warranty status is See warranty note, this indicates that non-HP ink is being used. See the
Legal Information document provided with your printer for details of the warranty implications.
Remove a printhead
CAUTION: Make sure the printer wheels are locked (the brake lever is pressed down) to prevent the
printer from moving.
ENWW
About the printheads
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