Service Utilities

If the Usage Counter information cannot be read, the Front Panel will display “Unable to get usage counter”. This could be a possible Firmware error. In this case, make sure you have the latest version of the Firmware.

4If the utility exits correctly, OK will be displayed on the Front Panel.

5.Diagnostic Print

The purpose of this Service Utility is to print the Diagnostic Print in order to identify Print Quality problems. Information regarding the Diagnostic Print is located in Chapter 6, Print Quality. Specifically:

The procedure to make a Diagnostic Print can be found at Printing the

Diagnostic Print on page 6-5.

The procedure to make an Advanced Diagnostic Print can be found at

Printing the Advanced Diagnostics Print on page 6-12.

Additional print quality information such as troubleshooting and corrective measures can be found at Print Quality on page 6-1.

6. Set Date and Time

The purpose of this Service Utility is to set the internal clock of the Printer.

Perform the Set Date and Time utility as follows:

1In the Service Utilities submenu, scroll to Set Date and Time and press OK.

2The Printer will display the current time and the new time. Use the Up and Down keys to go through the digits and press the OK key to go to the next

HP Designjet T Series — Service Manual

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