HP — Diagnostic Part 3: Printheads & Paper Advance Test

2. If the Printer is experiencing vertical misalignment problems, the Alignment Test will show some- thing like this: Print Quality 3. If the Printer is experiencing bi-directional misalignment problems, the Alignment Test will show something like this: Corrective Action 1. Perform a Printhead Alignment, using the same paper type with which you were experiencing unac- ceptable image quality, if feasible (some paper types are not suitable for Printhead Alignment). Diagnostic Part 3: Printheads & Paper Advance Test This test is designed to check whether the Printheads and the Paper Advance Mechanism are working correctly.

This part of the Image Quality Test should not be used to check for color consistency or accuracy. Banding If the Printer is experiencing a banding problem, you will see repetitive horizontal bands within the printed image. • Dark line banding repeated along the band (from top to bottom at the same distance). • White line banding repeated along the band (from top to bottom at the same distance). How to Use the Image Quality Service Diagnostic Print 185