HandTop HT3020UV-C-K, Operation Manual

Page: 68 / 97

67 / 97
6.3 Air exhausting of the printhead
The exhausting operation should be done the first time of printhead installation; this
operation can help exhaust the air bubbles in the chamber.
This operation can also be used to deal with the nozzles missing problem.

Shutdown the spray function

Turn off all the valves except the valves of the printhead, which needs to be exhausted
and adjust the pressure to a value of -1.0kPa.

Loosen the cap of the air exhaust tube of the printhead, and press the ink prime button
till you see a constant ink stream comes out of the tube. Then seal the tube with the cap.

Note. The operation must not exceed 3 seconds so as to avoid the generation of
bubbles. If the system alert occurs, click the “reset” and continue the exhausting
operation when the alert ceases.

Execute the exhaust on each printhead as the operations described above.

When finishes exhaust operation, adjust the pressure to a value of -3.5kPa and turn on
all the valves. press the prime button till you see the ink comes out of the nozzles of
each printhead.

Use the lint-free towel to wipe up the ink residues on the nozzles surface.

Print a “nozzle test” and check the status of the nozzles.
6.4 Printheads calibration settings reference
Kyocera color negative pressure:4.7mp White 5.0mp(for reference only)
Voltage&temperature,ink box temperature setting are according to ink
series.
Written a correct wave form before calibration.
6.5 Printheads calibration and alignment