HP Designjet 2800/3800cp Service Manual - Page 149
Analyzing the Image Quality Print, Test Pattern 1, Print-head Warm Up See below.
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Analyzing the Image Quality Print The Image Quality Print will contain five patterns as follows: 1 Print-head Warm Up (See below). 2 Image Quality Test (See Below). 3 Nozzle Print Test ' page 6-13. 4 Color Alignment Quality Test ' page 6-14. 5 Color Variation Test ' page 6-16. Test Pattern 1: Printhead Warm-up This pattern warms-up the printheads, leaving them in a perfect operating condition. You can ignore this pattern and continue with Test Pattern 2. Test Pattern 2: Image Quality Test This test pattern checks for overall image print quality. If you do not see any problems with the image quality test (similar to the example shown below), then the printer is functioning correctly. The problem may be with the RIP, driver, etc. that the customer is using. Refer to page 6-18 for further information. If you see image problems in this test pattern then continue with the following procedures which will help you determine the nature of the problem. Print Quality HP DesignJet CP Series Printers 6-7