HP Latex 3000 Users Guide - Page 184
Zone 4: Scan-axis bidirectional alignment check, Color calibration
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Zone 4: Scan-axis bidirectional alignment check This area shows scan-axis bidirectional alignment between colors. As in the description of the previous areas, in case of misalignment the bottom arrows indicate the pattern of the manual alignment that will correct the misalignment (I, J patterns). Also, the '20' label indicates the direction in which the line will be moved if a '20' value is applied. This pattern is formed by a series of vertical lines, printed unpaired as follows: The correct bidirectional alignment has been found when the Fwd and Rev lines are perfectly aligned. The following example shows a misalignment situation with an existing correction J=13, and how to correct it. In this case, the diagram shows that we need to change the value corresponding to the J pattern. Also it indicates that the correction needs to be moved towards lower values, because the '20' value would move it in the wrong direction. Color calibration Color calibration enables your printer to produce consistent colors with a particular substrate type, even if printheads, ink cartridges, and environmental conditions change. 178 Chapter 7 Printer calibration ENWW
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