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6. Filament motor is malfunctioning or is disconnected. Verify proper oper-
ation and connections. Test using head maintenance. Also flex the wires
while extruding to test for poor connections.
7. Broken wire in umbilical cable. Replace umbilical cable.
8. Check umbilical hose for proper alignment and connection to the head
cooling fan.
9. Head cooling fan has low air flow, replace the head cooling fan.
10. Z table could be jammed. Check for debris build up around lead screw
and guide rods. Replace Z stage if needed.
11. Irregular XY table movement, loose guide rods or loose drive belts. Ver-
ify the guide rods are securely fastened and the drive belt tensions are
correct. Replace XY table if needed.
Summary of Contents for DESIGNJET 3D
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Page 314: ... 298 Figure 272 HP Designjet 3D measurement points and worksheet BL FL FR BR ...
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