Stratasys J850 User Manual page 72

Stratasys J850/J835 User Guide
7. Carefully inspect the test paper to see if there are missing lines.
If you do not see many missing lines, but you suspect that there are faulty
nozzles in a print head, you can print samples to inspect. See "Dynamic
Nozzle Test" on page 4-126.
DOC-18001 Rev. H
The printer prints a series of lines on the test paper (see next figure).
Figure 4-53 Sample Pattern Test
Too many missing lines, especially if they are in the same area, indicates
that the quality of printing when producing 3D prints will be poor. If this is
the case, see "Improving Print Quality" on page 4-46.
Note: Acceptable 3D print quality is subjective, and depends on the type
and scale (size) of the 3D prints produced. As a rule, however, more than
10 missing lines in one area of a column is considered unacceptable.
4 Operating and Maintaining the Printer
4-44