HP Enterprise CC490A manual 51Black print-quality troubleshooting

Figure 3-51Black print-quality troubleshooting page

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1.Grids

2.Color plane registration (CPR) bars

3.Color ramp patches

The grids are in inches and millimeters. They are label with letters and numbers so that defects can be described by position and by distance between repeats.

After printing, the box with no extra color in each area on each page shows how far off the CPR of that color is. Each page has two process direction areas and three scan direction areas that are labeled x and y and 1–11. The page should be fed by the long edge. Each square from the center equals 42 microns.

Used to detect offset for the OPC or developer in the image drum or offset in the fuser.

NOTE: To get further assistance in print quality troubleshooting, go to www.hp.com/support/ cljcp4025 or www.hp.com/support/cljcp4525 and select PQ Troubleshooting Tools.

304 Chapter 3 Solve problems ENWW