Before attempting any diagnostic procedures to solve print quality problems, it is important to check that the printer is correctly set up to print what you want. Many problems concerned with print quality can be solved by correcting the way the printer or the printer driver is configured.

1. To achieve the best performance from your printer, use only genuine HP accessories and supplies, whose reliability and performance have been thoroughly tested to give trouble-free performance and best-quality prints. For details of HP printing materials, see physical characteristics of printing materials. For the most up-to-date information, you can also visit the http://www.designjet.hp.com/
Web page (then click on printing materials).
2. Make sure that the printing material selected in the front panel is the same type that is loaded into the printer. To check this go to the Roll or Sheet menu in the front panel and press Enter.
3. Make sure that the print mode (Max Quality, Productivity, Production, Max Speed) is correct. Check it in the front panel and the driver.
4. Select Max Quality print mode for maximum print quality.
5. For Non-HP drivers, set media settings to match the media type loaded in the printer. See the documentation that came with your software for information.
6. If your image quality problem is color accuracy related, for further configuration help see the problem is color accuracy.