HP Designjet 2800/3800cp Service Manual - Page 160

No Printing Defects Found in the Image Quality Print If all the test patterns from the Image Quality Print are correct and you still experience print quality problems, here are some of the more likely causes to check: D The print mode used in your printer is incorrect (this is defined by the printer's front-panel menu selections). D Non-HP driver. D The RIP (If you are using one). D The software applications you are using. Refer to the User's Guide for further information on how to configure the system with correct settings. Media Always make sure that the customer is using the appropriate media for the required image and that it is consistent with the software application being used. To ensure color accuracy and print quality performance of the printer, only media types that have been certified for the printer should be used. Use of non-HP media or HP media not certified for the printer may significantly reduce the color and print quality of the required images. For details of HP media, refer to the User's Guide or the Media Guide for the HP DesignJet CP Printers. To have accurate colors, the media settings must match the type of media loaded in the printer. If the customer is using non-HP media with HP drivers, the colors in the required print may not be accurate. Advise the customer to use HP media if they want to improve the accuracy of the colors. 6-18 HP DesignJet CP Series Printers Image Quality