Stratasys J850 Manual page 56

It is recommended that you periodically back up the printer's configuration
files. In case of printer malfunction or the need to re-install the software on
the printer computer, parameters can be restored from the backup. The
backup also saves the printer's log and the calibration and maintenance
history.
1. From the Options menu, select
or—
Press .
2. In the confirmation dialog box, click
A zip file is saved in this folder—
\STRATASYS_J8_SERIES\ServiceData
3. Copy this file to a location that is not on the printer computer (for
example, a network folder or a USB drive).
If you suspect that print quality is poor, perform the Pattern Test (see
"Pattern Test" on page 4-31). If the results are poor, use the following
procedure to improve print quality.
1. From the Options menu, select
2. In the confirmation dialog box, click
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.
1. Manually clean the print heads (see "Cleaning the Print Heads, Roller and
Wiper" on the next page).
2. Perform the purge sequence.
3. Perform the pattern test.
.
.
, or press
.
.