HP Designjet 3D Service Manual page 97

6. Inspect tip inlets for material build up see
material build up see
there is no excess material build up close the chamber door and con-
tinue.
Support tip inlet
7. Press Select Drive and choose the drive that may have the clogged tip.
8. Press Forward, the drive wheel will turn the selected drive forward.
9. Press Blower Off, this will turn the head cooling fan off for 10 seconds,
allowing the tip to heat up beyond operating temperature. If material
starts to extrude the tip is no longer clogged. If material does not
extrude see "Recovering from loss of extrusion" on page 82..
extrudes, you can continue building your part.
10. Reinstall the head cover.
NOTE: If the head cover is not replaced the printer may not function
properly.
1 1. Press Done.
12. Display will ask Which Materials Loaded? Press Both.
13. Press Done until back to Pause screen.
Press Resume to continue building the part.
Figure 58.
"Recovering from loss of extrusion" on page 82.
Figure 58: Tip inlet locations
If there is excess
If
Model tip inlet
If material
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