HP Designjet 4000 HP Designjet 4000 Printer Series - Quick Reference Guide - Page 116
How do I respond to the Image Diagnostics Print?, How do I interpret Image Diagnostics part 1?
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How do I use the Image Diagnostics Print? Chapter 9 How do I respond to the Image Diagnostics Print? The Image Diagnostics Print is in three numbered parts. 1. Part 1 tests printhead alignment. See "How do I interpret Image Diagnostics part 1?" on page 114. 2. Part 2 tests printhead performance and the paper advance mechanism. See "How do I interpret Image Diagnostics part 2?" on page 116. 3. If Part 2 has revealed a printhead problem, Part 3 identifies which of the eight printheads is responsible for it. See "How do I interpret Image Diagnostics part 3?" on page 118. If Part 2 has not revealed any problem, you can and should ignore Part 3. How do I interpret Image Diagnostics part 1? The purpose of part 1 is to identify color-to-color alignment and bidirectional alignment problems. If you have horizontal misalignment, you will see something like this: 114