select printer | 4000 series | troubleshooting | IQ troubleshooting
hp designjet 4000 series printers
» IQ troubleshooting
» send feedback or
comments
 

What is the Service Image Quality Diagnostic Print?

In order to troubleshoot Print Quality problems, refer directly to the Troubleshooting section that covers the different Print Quality problems (refer to Advanced Banding Troubleshooting for Experts). Do NOT use the Diagnostic Print on it's own to troubleshoot Print Quality Problems.
The Printer contains an internal Image Quality Test which helps you to diagnose the possible source of any image quality defects. The Service IQ Diagnostic Print is available in two options:
1. Image Quality User plot. This can be printed either through the normal front panel menu or through the Service Utility Menu.
  1. If the Image Quality Diagnostic Print is printed through the Service Utility Menu, you will not be prompted to select "optimized for drawings/text" or "optimized for images". The Printer will automatically take the settings that have already been selected in "Setup Menu/Printing Defaults Menu/Image Quality/Optimized for".
  2. If the Image Quality Diagnostic Print is printed through the standard menu (Setup Menu/Information Menu/Internal Prints/Print Image Diagnostics) you will be prompted to select "drawings/text" or "images". It is recommended to print the Diagnostic Print using this option.
The Image Quality User Plot print is divided in to three parts as follows:
  • Alignment Test. This test is designed to check any color-to-color and bi- directional misalignment the printer may have.
  • Printheads and Paper Advance test. This test is designed to check whether the Printheads and the Paper Advance Mechanism are working correctly.
  • Printhead Problems. The purpose of this test is to identify which Printhead is faulty.
2. Image Quality Service Plot. This can only be printed through the Service Utility Menu. This print contains the Printhead Nozzles test, which is designed to check if the printhead nozzles print correctly.
© 1994-2006 Hewlett-Packard Company