HP Designjet T790 HP Designjet T790 and T1300 ePrinter: User's Guide - English - Page 126

About the printheads, Check the printhead status, Remove a printhead - ink cartridge

Page 126 highlights

Ink and printheads 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 199). 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 185 ● 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 177. 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. 118 Chapter 12 Handling ink cartridges and printheads ENWW

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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
199
). 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
185
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
177
.
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.
118
Chapter 12
Handling ink cartridges and printheads
ENWW
Ink and printheads