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Stratasys J850/J835 User Guide
Improving Print Quality
If you suspect that print quality is poor, perform the Pattern Test (see "Pattern
Test" on page 4-45). 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 Purge Sequence, or press F4.
2. In the confirmation dialog box, click Yes.
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, UV Lamp
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
2. Perform the purge sequence.
3. Perform the pattern test.
If the results of the pattern test are still poor:
➢ Optimize the print heads and replace faulty print heads, if necessary (see
Cleaning the Print Heads, UV Lamp Glass, Roller and Wiper
Regular inspection and cleaning of the orifice plates on the bottom of the print
heads prevents print nozzles from clogging. Cleaning the roller, wiper, and UV
lamp glass are also important for maintaining quality printing. A wizard adjusts
printer components to enable access to these key areas, and it guides you
through the cleaning procedure. To maintain the printer in optimum condition,
run the wizard after every print job, when you remove the 3D print from the
build tray. This procedure takes about 20 minutes.
Before running the wizard, empty the waste container. A full waste
container can cause the wizard to cancel or freeze.
DOC-18001 Rev. N
The print heads are purged of model and support material, and the wiper
removes excess material from them.
Glass, Roller and Wiper" below).
on them.
"Optimizing (Calibrating) Print Heads" on page 4-68).
4 Operating and Maintaining the Printer
4-49
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