HP DesignJet T830 User guide - Page 172

Loss of shadow or highlight details, Printer banding

Page 172 highlights

crosses that may be used to identify the problem in question. The correct pattern is shown on the left, an example of misalignment on the right. Loss of shadow or highlight details Looking at pattern H, you may find a problem with the printer or the paper. If you can distinguish lightness steps beyond the upper and lower specified thresholds, then the printer is fine. Here you can see examples of correct functioning on the left, incorrect on the right. If the printer does not pass this test, you should check that you have correctly selected the paper type and the Best quality. Printer banding Looking at patterns A, B, and C, you can see vertical banding problems. See the Horizontal lines across the image (banding) on page 137. 168 Chapter 18 The scanner diagnostic plot ENWW

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crosses that may be used to identify the problem in question. The correct pattern is shown on the left, an
example of misalignment on the right.
Loss of shadow or highlight details
Looking at pattern H, you may find a problem with the printer or the paper. If you can distinguish lightness steps
beyond the upper and lower specified thresholds, then the printer is fine. Here you can see examples of correct
functioning on the left, incorrect on the right.
If the printer does not pass this test, you should check that you have correctly selected the paper type and the
Best quality.
Printer banding
Looking at patterns A, B, and C, you can see vertical banding problems. See the
Horizontal lines across the image
(banding)
on page
137
.
168
Chapter 18
The scanner diagnostic plot
ENWW