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Print Quality
2.3.2 Substrate Advance Test Plot
To print this test plot go to Menu List>2. Image Quality Plots>2.3 Substrate Advance>2.3.2 Print
Adjustment Plot.
The Substrate Advance Test Plot enables you to visually determine the accuracy of the media advance, if
there are any advancement issues they will appear in this diagnostic plot.
The plot can be used to precisely measure the media advance error with a one dot row accuracy or
2.85mm per meter, and to verify the stability of the media advance. In addition, the test is performed on
the left, center and right side of the scan axis. This is to verify any differential advance due to an uneven
advancement of the substrate.
Each sample is composed of 9 vertical columns named -4 to 4. Each single column represents an advance
deviation of 2.85mm per meter, so column -4 is related to a deviation of -11.42mm per meter and 4
corresponds to +11.42mm per meter. The advance obtained along the scan axis direction corresponds
with the position of the lighter portion of the pattern in each advance, as shown on the next page.
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