- If you have any doubt about the created ICC media profile, recreate it, or re-install the default one (from the color center, ‘ Create and Install ICC profile ’ or ‘ Manage paper -> restore Factory ICC profile ’). Print Quality 9. If the issue is the color difference between the printer and the monitor, ensure that the monitor has been calibrated, refer the customer to the HP LFP Knowledge Center for details on how to perform this, use the url: http://www.hp.com/go/knowledge_center/djz6100. 10. Check that your environmental conditions (temperature, humidity) are in the recommended range. Avoid touching the paper while printing is in progress. 11.
If Pantone Colorsare inaccurate refer to the specific chapter within the User’s Guide: Chapter 7. The section is called ‘HP Professonal PANTONE Emulation’. 12. Color accuracy using EPS or PDF images in page layout aplications such as Adobe InDesign and QuiarkXpressdo not support color managment of EPS, PDF or Grayscale files. If these types of files have to be used, try to ensure that the EPS, PDF, or grayscale images are already in the same color space that are to be used later on in Adobe InDesign or QuarkXPress.
For example, if the final objective is to print the job in a press that follows the SWOP standard, at the time of creating the EPS, PDF or grayscale the image should be converted into SWOP. 13. Check the procedures on “Colors are inaccurate” on page 206. NOTE: The HP LFP Knowledge Center is an excellent source of color accuracy information, the database includes step-by-step procedures on achieving the best color image quality when using various applications. Use the the url: http://www.hp.com/go/knowledge_center/ djz6100. How to Use the Image Quality Service Diagnostic Print What is the Image Quality Service Diagnostic Print?
The Printer contains a series of internal Image Quality Tests which help you to diagnose image quality defects. The print is available from the Service Utility Menu>Diagnostic Print and is divided into three parts: • Printhead Reliability Test: The purpose of this test is to identify which Printhead is faulty. • Printhead 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. The diagnostic print is available in the following options: 1. Image Quality Service Best:
This plot helps you to diagnose in more detail the possible source of any image quality defects. 2. Image Quality Service Normal: This plot is the same as the Image Quality Service Best Plot but uses the Normal Print Mode and does not contain the Printheads Alignment test. This plot can be used to find banding that would be hidden if the Best plot was used. 3. User plot: This is the customer’s version of the image quality dignostic page. When this is printed now it will reflect the customer’s current settings. 4. Others: These tests provide more information concerning the IQ defects that could found from the Image Quality Plot s : How to Use the Image Quality Service Diagnostic Print 181