Service Tests (Diagnostics)

„System Error Code 42:XZ.

„System Error Code 47:XZ.

„System Error Code 73:XZ.

„System Error Codes related to Scan-Axis shutdown or Carriage jam.

Diagnostic tests also need to be performed after removing or replacing certain printer components. If you have removed or replaced printer components, check the Service Calibration Guide to Removal and Installation on page 6-5 to see which tests and calibrations you need to perform.

ALL THE COVER SENSORS ARE DISABLED WHEN IN THE

SERVICE TESTS MENU. IF THE CARRIAGE IS MOVING IT WILL

NOT STOP IF THE WINDOW IS OPENED, SO BE VERY CAREFUL

NOT TO PUT YOUR HANDS INSIDE.

IF POSSIBLE, ALWAYS PERFORM THIS TEST BEFORE

REPLACING ANY COMPONENT OF THE SCAN-AXIS.

Star Wheel Lifter test

The Star Wheel Lifter subassembly is designed to move the Start Wheel support to the up and down positions. This is used to load roll or sheet media and avoid damage to the Star Wheel caused by paper jams etc.

Perform the Scan Axis - Starwheel lifter test as follows:

Perform this test with the Printheads and the Tubes System installed in order to get values that can be compared correctly.

1In the Diagnostics menu, scroll to 1. Scan Axis and press OK.

2The Front Panel will show the 1. Scan Axis submenu.

3In the Scan Axis submenu, scroll to Star Wheel Lifter and press OK to start the test.

If there is a Failure at any point during the tests, the Front Panel will display the relevant System Error Code. To trouble shoot any displayed error codes, see System Error Codes - Full Descriptions on page 2-7.

HP Designjet T Series — Service Manual

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