External Print Head Ventilation (Optional Equipment); Grounding Regulation For Print Head Works - Leibinger JET3 Series Operating Manual

Page 42
During an installation of a device in a production line, the operating staff
should be not endagered. Due to moving products under the print head
danger of bruisings and shearing can be caused. The regulations of the
machinery directive 2006/42/EG should be observed!

5.3.5 External print head ventilation (optional equipment)

The "external head ventilation" unit is only delivered pre-assembled.
Further information and installation instructions can be found in the
separate instructions as well as in the accompanying assembly instructions
„Installation of the external print head ventilation".
The unit's pressure regulator must be connected to the compressed air supply with a suitable
hose and quick connector.
5.3.6

Grounding regulation for print head works

For technical reasons the ink of a continuous ink jet printer is charged with high voltage
during the printing process. In case of inappropriate handling the static charged ink may be
an ignition source. In combination with flammable ink and solvent this could pose a fire or
explosion hazard. Therefore for some works a ground cable is required.
Basically there are two situation where the use of a ground cable is mandatory:
 The printer is operated in test mode and the ink is just discharged into a service tray (e.g.
a Leibinger cleaning station). Without any safety measures the ink in the service tray may
be charged up. In order to avoid this critical situation the print head and the service tray
have to be connected with a ground cable. In case of using a service tray made of plastic
material it would be possible to place a metal foil in the service tray and connect the
ground cable to that foil.
 During cleaning operations the service tray has to be connected with the print head by a
ground cable.
Release 2.02
Transport/Start up
CAUTION – INSTALLATION OF PRINT HEAD
INFORMATION
Group 5
JET3 Series