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3.
Installation and Operation
3.9 Nozzle exhaust
The ink is pumped only by the method of ink pressing, and air is left in the nozzle, causing the
printed color disconnection. Therefore, after the nozzle is pressed through the ink, the nozzle
needs to be exhausted. Since all the color channels share the same negative pressure pump,
all the white channels share the same negative pressure pump, so the secondary ink valves of
other unrelated channels should be closed when exhausting one by one to avoid wasting ink.
Schematic diagram of Nozzle exhaust sequence
1. Close the secondary ink valve for all channels and open the secondary ink valve on the nozzle
that requires venting.
2. Press the negative pressure button until the negative pressure gauge shows a positive value.
3. Open the knob on the exhaust pipe. During this time, do not release the negative pressure button.
The ink will flow out of the exhaust pipe until the exhaust pipe flows out of the continuous strand of ink.
4.
Loosen the negative pressure button, wipe off the remaining ink on the pipe orifice,
and finally tighten
the exhaust pipe knob on the line.
