Xerox 2135N Quick Reference Guide - Page 188
Interpreting the Color Balance and, Density Adjustment Interpreting the Gray 35% Halftone
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Gray 35% Halftone Test Pattern Interpreting the Color Balance and Density Adjustment Page. You use this print to assess and adjust color balance, color density and black density. Use the 30% halftones to judge the current level and decide on a preference. Look for: The Color Density and Black Density should be at approximately the same level. This is important in order to make the Color Balance adjustment. To determine the correct Color Balance compare the disk in the center of the Color Balance object marked "CURRENT" with the gray background. The background is produced using black only and the circles are produced using a combination of cyan, magenta, and yellow. The adjustment objective is for the "CURRENT" circle to be the closest gray of any of the circles when compared to the gray background. Refer to the adjustment "Adjusting color density and balance" on page 77. Interpreting the Gray 35% Halftone Test Pattern The Gray 35% Halftone Test Pattern is a full-page, fill made up of a 35% gray tint. It is useful for isolating black imaging and LED head problems. Look for uniform fill with no banding or lines. 0728-19 Service Guide 175
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