Group 5 Transport/Start up Page 47
JET3up Release R1.06
CAUTION – INSTALLATION OF PRINT HEAD
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.
INFORMATION
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 Leib
inger 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.
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