Stratasys J850 Manual page 64

1. Prepare—
❒ a new roller scraper blade
❒ a Phillips 1x75 mm screwdriver
❒ a 2.5-mm and a 2-mm hex (Allen) key
2. Remove the right UV lamp and the roller waste collector covering (see
steps 3 to 6 on page 4-39).
3. Loosen the two screws securing the roller waste collector and pull it out.
4. Remove the screws that secure the roller scraper assembly.
5. Remove the scraper blade and discard it.