Stratasys J826 User Manual page 95

Stratasys J826 User Guide
Replace print heads only after consulting with an authorized Stratasys
service provider.
If you are replacing print heads now, the wizard guides you through the
procedure when you click Next. Continue with "Replacing Print Heads" on the
next page.
DOC-28000 Rev. I
❒ If the wizard determines that a print head is faulty—or that it is
negatively affecting part quality with the current head configuration—
you need to replace it. Indicate whether or not you want to do so now.
Figure 4-88 Defective print heads found
• Select Replace defective head(s) if you are prepared to replace
the print heads now (see below).
or—
• Select Abort wizard if you want to replace the print heads at
another time.
To replace print heads, you need these tools and materials:
❒ replacement print head(s)
❒ 90% isopropanol (IPA—isopropyl alcohol) or ethanol (ethyl alcohol)
❒ disposable cleaning gloves (supplied with the print head; or use any
clean, powder-free protective gloves)
❒ a supplied cleaning cloth or equivalent
❒ a mirror
❒ a 4-mm hex (Allen) key
❒ a small Phillips screwdriver
❒ the Missing Nozzles ruler
❒ the scale supplied for use in the Head Optimization wizard (Weight
Test)
Important: Before beginning this procedure, ensure that the scale is
calibrated and at least partially charged.
4 Operating and Maintaining the Printer
4-65