Copyright © 2006 REA Elektronik
Seite 20
Rationalisierung
Entwicklung
Automation
Elektronische Geräte und Systeme
8.4
Adjusting the print image
Adjusting the print image means that the dot size needs to be adjusted according to the print text
and the printing surface.
8.5
Adjusting parameters
Adjusting the print image quality is done by adjusting the ink pressure and the by adjusting the dot
size at the controller. In most cases the printing surface is a given thing and can not be changed.
In few cases a surface treatment is possible to optimize print image quality. To significantly
change the dot size the nozzle plate can be replaced to different sized nozzles which involves a
major component change.
Very important for print image quality is to select the appropriate ink. When the product surface
changes a different ink could be required to secure print image quality.
It is quite a bit of an effort to modify a print head to work
with a nozzle plate of different nozzle sizes since the
mechanical components of a print head are inter-
balanced to the type of nozzles installed.
The following applies fort he adjustable parameters:
-
The larger the ink pressure and the larger the
„Dot-Size“ the larger will be the dot you get.
-
The smaller the ink pressure and the smaller the
„Dot-Size“ the smaller will bet he dot you
get.
8.6
„Dot-Size“ adjusting procedure
To adjust the dot size of the system us the
„Dot-Size“ regulator on the controller.
Fig. 8.2.
Controller:
„Dot-Size“-regulator (left), „Dot-Size“ sketch of settings (right)
To adjust the ink pressure settings please consult the manual for the ink supply unit.
Dot-Size
1
Small dot
9
Large dot
