Objet Connex500, Operating & Maintenance Manual

Page: 22 / 68

Operating & Maintaining the Connex500/350 3-D Printer
7–22
DOC-13000 Rev. E
Figure 7-25: Sample Pattern Test
6. Carefully inspect the test paper to see if there are missing lines.
Too many missing lines, especially if they are in the same area,
indicates that the quality of printing when producing models will be
poor. If this is the case, see “Improving Print Quality,” below.
Note: Acceptable model quality is subjective, and depends on the type
and scale (size) of the models produced . As a rule, however, more than 10
missing lines in one area of a column is considered unacceptable.
Improving
Print Quality
If you suspect that print quality is poor, perform the pattern test (see
“Pattern Test” on page 7 ‐ 21). If the results are poor, use the following
procedure to improve print quality.
If the results of the last pattern test are poor:
1. From the Options menu, select
Execute Purge Sequence
, or press
F4
.
2. In the confirmation dialog box, click
Yes
.
The print heads are purged of model and support material, and the
wiper removes excess material from them.
3. Repeat the purge sequence.
4. Perform the pattern test.
If the results of the pattern test are still poor:
1. Manually clean the print heads (see “Cleaning the Print Heads” on
page 7 ‐ 19).
2. Perform the purge sequence.
3. Perform the pattern test.
If the results of the pattern test are still poor:
1. Carefully clean the print heads again, making sure there is no residue
left on them.
2. Perform the purge sequence.
3. Perform the pattern test.
If the results of the pattern test are still poor:
¾
Replace faulty print heads (see “Replacing Print Heads” on page 7 ‐ 40).
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