HP Designjet 2800/3800cp Service Manual - Page 147

Image Quality Print Introduction Whenever a Print Quality problem appears, it is advisable to print the Image Quality Print to help diagnose the problem. The Image Quality Print will help you differentiate between possible printhead errors and other problems such as incorrect front-panel selection, driver or RIP configuration or mechanical problems. To achieve the best performance from the printer, advise the customer to only use genuine HP accessories and supplies, whose reliability and performance have been thoroughly tested to give trouble-free performance and best-quality prints. Using the Image Quality Print 1 The size of the Image Quality Print is A3 and B so you must use media (roll or sheet) that is this size or larger. Do not use 3M Changeable Opaque Imaging media or equivalent when printing the Image Quality Print. 2 Use the same type of media that the customer was using when the image quality problem was discovered. 3 Study each of the test patterns in the order listed to determine the type of image quality problem. 4 If the customer was reporting problems of Image Quality using non-HP media and after the Image Quality Print test the same quality problems appear, advise the customer to use genuine HP media. Repeat the Image Quality Print test using genuine HP Media (Do not use 3M Changeable Opaque Imaging media). Producing the Image Quality Print 1 Select the Image Quality Print from the Utilities / Service tests menu, then press Enter to print the test. 2 The printer will print out a series of images named Test 1 thru to Test 5. The Image Quality Test print looks like this: Print Quality HP DesignJet CP Series Printers 6-5