Copyright © 2006 REA Elektronik
Seite 19
Rationalisierung
Entwicklung
Automation
Elektronische Geräte und Systeme
When a pigmented ink supply is used the print heads
don´t need to be vented. The system vents itself by
circulating the ink.
-
To check all nozzles push the purge button on print head and pull a piece of paper past the
print head at the same time. The print head should deliver an even print result with all
nozzles working uniformly.
For best printing quality the distance in between product
surface and nozzle plate should not be more then 1 to 5
mm.
The system is now ready to go!
8.3
Operation of several print heads with one ink supply unit
It is possible to operate several print heads with one ink supply unit, however, you will have to reckon by
part on a considerable loss of ink pressure when using long tubing and a larger quantity of T connectors.
If you wish to connect more than two print heads to one ink supply unit you will have to use a respective
quantity of T connectors. In the case of pigmented print heads you will have to use twice the quantity of T
connectors because the ink runback will also have to be installed as described.
Several print heads supplied by one ink system have
always to be installed in parallel, NOT in a line.
Furthermore you will have to use the same length of tubing
between the T connector and every print head in order to
make sure that the pressure is constant for every single print
head.. In one or the other case it will be necessary to check
such a multi-connection since many external factors can have
an additional influence.
Fig. 8.1
:Ink feeding for two print heads (example: standard, non-pigmented print head)
T connector
Ink supply unit
For print head 1
For print head 2
