Stratasys J750 User Manual page 53

Stratasys J750 User Guide
Improving If you suspect that print quality is poor, perform the pattern test (see "Pattern
Print Quality Test" on page 4-29). 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, Roller and
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 Regular inspection and cleaning of the orifice plates on the bottom of the
Print Heads, print heads prevents print nozzles from clogging. Cleaning the roller and
Roller and wiper are also important for maintaining quality printing. A wizard adjusts
Wiper 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 model
from the build tray. This procedure takes about 20 minutes.
To clean the print heads, roller and wiper:
1. Prepare—
DOC-08040 Rev. E
The print heads are purged of Model and Support material, and the wiper
removes excess material from them.
Wiper" below).
on them.
"Optimizing (Calibrating) Print Heads" on page 4-47).
❒ isopropanol (IPA—isopropyl alcohol) or ethanol (ethyl alcohol)
❒ disposable cleaning gloves
❒ a supplied cleaning cloth or equivalent
❒ a mirror
4 Operating and Maintaining the Stratasys J750 3D Printer
4-32