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Stratasys J850/J835 User Guide
7. Insert and tighten the roller scraper blade screws.
Important:
Tighten the screws in the order shown in Figure 4-85.
l
Use the new screws supplied in the replacement kit
l
8. After tightening the screws, inspect the blade and make sure that it is
9. Return the roller waste collector assembly and the right UV lamp to the print
Aligning the Print Heads
You should check the alignment of the print heads—
• once a month
• after replacing one or more heads
• if quality is not acceptable even after cleaning the orifice plate on the bottom
This procedure takes about 20 minutes.
To check the alignment of the print heads:
1. Prepare—
2. Start the Head Alignment wizard from the Options menu.
DOC-18001 Rev. N
Figure 4-85 Tightening the roller scraper screws
straight. If necessary, loosen the screws and tighten them again, evenly.
block. (See steps 5 to 7 on page 4-55 in "Cleaning the Roller Waste
Collector and Inspecting the Roller Scraper".)
of the print block (see "Cleaning the Print Heads, UV Lamp Glass, Roller
and Wiper" on page 4-49).
❒ a transparency sheet, A-4 or Letter size
❒ any type of adhesive tape, to fasten the transparency sheet to the build
tray
4 Operating and Maintaining the Printer
4-60
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