HP DESIGNJET 3D, Service Manual

Page: 94 / 458

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Cycling power
1. Turn the power switch to the OFF position. The display will show
Shutting Down
.
2. After the printer has cooled down enough to shut down, the display will
go blank.
3. When the display is blank and the printer has shut down, turn the circuit
breaker to the OFF position.
4. Once the circuit breaker has been turned to the OFF position, wait 60
seconds and turn the circuit breaker back to the ON position.
5. Turn the power switch to the ON position. The printer display will show
that it is starting up.
Once the display shows
Idle
or
Ready to Print
, you can send a file to the
printer to be printed.
Diagnosing loss of extrusion
Occasionally, the printer’s head may experience loss of extrusion. This will
be evident by observing one of the following:
• The head is moving with no material coming out of either tip
• The height of the model and support materials are not equal
• Sagging structures due to lack of support materials
1. From the display panel press
Cancel
and remove parts from the printer.
2. Insert a new modeling base.
3. From
Idle
, press
Maintenance
4. Press
Machine
.
5. Press
Head
. The head will move to the center of the chamber and the Z
platform will change position. The display will read:
Model Drive Motor
Stopped
6. Determine if there is a model material extrusion problem by pressing
Forward
(command will be available after head reaches operating tem-
perature). Watch the model tip (right tip) for any extrusion (material
purge).
7. Press
Stop
to stop the extrusion.
8. If material did NOT flow from the model tip, see “Recovering from loss
of extrusion” on page 82. . If material steadily flowed from the model tip,
the model tip is functioning properly.
9. Test the support material tip by choosing:
Select Drive
.
GLOVES: The head area is hot. Use gloves when working in this
area of printer.
NOTE: You may need to wait up to 30 seconds before extrusion will
begin as the tip may need to reach operating temperature