Replacing The Roller Scraper - Stratasys J850 User Manual

Stratasys J850/J835 User Guide
2. Loosen the screws securing the suction tube.
3. Lower the suction tube so that the hole in the panel behind the tube is
4. Attach the right-UV-lamp assembly to the print block and reconnect the UV

Replacing the Roller Scraper

You should replace the roller scraper blade—
• after 1,000 hours of printing.
• if it does not effectively keep the roller clean.
You should periodically test the effectiveness of the roller scraper when you
clean the roller waste collector. See "Cleaning the Roller Waste Collector
and Inspecting the Roller Scraper" on page 4-51.
To replace the roller scraper:
1. Prepare—
2. Remove the right UV lamp and the roller waste collector covering (see
3. Loosen the two screws securing the roller waste collector and pull it out.
DOC-18001 Rev. H
Figure 4-68 Positioning the suction tube
visible, and tighten the screws to secure the tube.
power and fan cables.
❒ a new roller scraper blade
❒ a Phillips 1x75 mm screwdriver
❒ a 2.5-mm and a 2-mm hex (Allen) key
steps 4 to 7 on page 4-52).
Figure 4-69 Removing the roller waste collector
4 Operating and Maintaining the Printer
4-55