Service Tests and Utilities

28The Front Panel prompts you to shutdown the printer to complete the test.

29Press any key to shutdown the printer.

6. Rewinder

The Rewinder test diagnoses failures of the Rewinder located in the Paper

Path Assemblies (Rear). Always run this test before replacing the Right

Spindle Holder (rewinder included).

The Rewinder is only available on the 44 inch printers. The 24 inch printers do NOT have a Rewinder.

Perform this test after:

„System Error Code 41:YZ

„System Error Code 45:YZ

„System Error Code 81:YZ

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. Service Calibration Guide to Removal and Installation on page 6- 5.

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

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.

1In the Diagnostics menu, scroll to 6. Rewinder and press OK.

The printer will start the Open Loop, Rewinder Servo System, and Media

Driver PWM tests.

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HP Designjet T Series — Service Manual