• If necessary, try changing to a non-paper-based material such as transparent film Print Quality Smears or scratches on the front of glossy paper Glossy paper may be extremely sensitive to the bin or to anything else that it contacts soon after printing. This will depend on the amount of ink printed and the environmental conditions at the time of printing. Avoid any contact with the paper surface and handle the print with care. Ink marks on the back of the paper Ink residues on the platen or on the input rollers are likely to mark the back of the paper. Colors are inaccurate Refer to this section if the customer complains of inaccurate colors which do not match their expectations.
Upgrade the Firmware To ensure that the image quality and color troubleshooting tools that are available in the printer are the most up to date, check that the firmware is the latest available. Basic image quality troubleshooting As a first step to improving the accuracy of the color ensure that the basic image quality of the printer is good. Good all round image quality is a pre-requisite to acheiving color accuracy and color consistency. 1. Refer to the steps in “Initial Print Quality Troubleshooting Actions” on page 180. 2. Perform the Color Calibration Procedure via the Front Panel: Image Quality Maintenance> Calibrate Color . 3.
Ensure the media being used has an ICC color profile created. This can be done by using the HP Color Center to select Create and Install an ICC Profile. 4. Perform the Image Quality diagnostic procedures, refer to page 181. Checking the Spectrophotometer If none of the above solutions fix the problem and the customer notices a slight degradation of color over time perform the following steps: 1. Perform the • Spectrophotometer Test, refer to page 148 for details (firmware 6.0.0.9 or greater). This tests the Spectrophotometer’s ability to function within predefined color specifications. 206 Chapter 6 Print Quality