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Assembly and function
72800115 Markoprint X4JET
Fig. 21: Level system unit – print head module with top system and printing from side
Functional principle:
The ink is distributed in the ink channels through capillary action. In order to optimize the
viscosity of the ink, the head is heated to approximately 35°C (with ScanTrue II ink). Or
65°C (with Versa ink). This takes about 5 minutes from the time the device is switched
on.
Each ink channel contains a piezo tappet that contracts when an electrical pulse is
applied. At the end of the pulse, the tappet expands suddenly and pushes the ink
against the nozzle plate. The nozzle plate forms the ink into individual drops that are
ejected onto the printing surface. When the drops exit the print head, a suction pressure
is generated that pulls more ink from the tube.
The surface tension of the ink present directly at the nozzles prevents ingress of air into
the ink channels. Please note that the print head must be protected from strong
vibrations. Strong impacts may lead to disruption of the surface tension and ingress of
air into the head.
Only those inks listed on the gummed label of the unit may be used in the system.
The use of other inks will cause a total breakdown of the printer system!
The system must not be run dry / without ink.
The system is supplied filled with ink. Ink could escape if the device is not closed
and not stored properly.
If ink has escaped, air must be removed from the system before using.
The ink tank has a ventilation cap that must remain open at all times after
installation!
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