Print quality troubleshooting
The Image Quality Service Best Plot uses the Best Print Mode and is divided in to three parts as follows:
Diagnostic Part 1: Printhead Reliability Test. The purpose of this test is to identify which Printhead is faulty.
Diagnostic Part 2: Printhead Alignment Test. This test is designed to check any
Diagnostic Part 3: Printheads and Paper Advance test. This test is designed to check whether the Printheads and the Media Advance Mechanism are working correctly.
2Image Quality Service Normal Plot. This plot is the same as the Image Quality Service Best Plot but uses the Normal Print Mode.
3Advanced Diagnostic Plot. These tests provide more information of the IQ defects that we could find in the Image Quality Service plot. For more information, see The Advanced Diagnostic Prints on page
Considerations for Printing the Diagnostic Print
1The IQ Diagnostic Print prints in A3 and B sizes so you must have media loaded (roll or sheet) that is this size or larger.
2Use the same type of media that the customer was using when they found the image quality problem.
3If the customer is using
If you do see problems with the Image Quality Test, continue with the Advanced Diagnostic procedures which will help you diagnose the problem.
Printing the Diagnostic Print
1In the Service Utilities submenu, scroll to “Diagnostic Print” and press OK.
2You will be given three options. Use the Arrow keys to make the selection and press the OK key to start printing the required Diagnostic Print or to enter the Advanced Diagnostics menu.
3If you selected the Advanced Diagnostics Prints in the previous step, use the Arrow keys to make the required selection Paper Advance, Printhead
HP Designjet T Series — Service Manual |