Service Tests and Utilities

6Once you have finished cleaning the Drive Roller and the Overdrive, press the Cancel key to finish the utility.

7If the utility exits correctly, OK will be displayed on the Front Panel.

REMEMBER TO REMOVE THE PIECE OF PAPER FROM THE

WINDOW SENSOR BEFORE CLOSING THE WINDOW AS THIS

COULD DAMAGE THE WINDOW AND THE SENSOR.

2. Purge Tubes

The purpose of this Service Utility is to Prime the Tubes when the Ink Tubes are NOT new and they need to be re-primed or automatic priming was not completed correctly.

Make sure that NEW Ink Cartridges are installed or that the ink volume remaining in the Ink cartridges is below 88% before starting to prime the tubes. If you do not comply, you will get a warning message and cannot finish the test.

Before using the Purge Tubes utility, you must insert the dummy printheads using the Change Printheads procedure.

Changing a Printhead on page 3-12

Once you have inserted the dummy printheads using the Change Printheads procedure, perform the Purge Tubes utility as follows:

1In the Service Utilities submenu, scroll to Purge Tubes and press OK.

3-60

HP Designjet T Series — Service Manual