Positioning The Air Jets - Printronix SLPA8000 User Manual

Chapter 2
Setup

Positioning The Air Jets

When a printed label is being fed from the SLPA onto the applicator pad, it
must be held against the pad so that it can be properly positioned. The air jets
located on the air jet tube direct air at the label while it is being fed, so that it
does not bend or fall from the pad. Once proper positioning is achieved, the
vacuum of the applicator pad initiates and holds the label into place until
application.
For the air jets to work correctly, they must be directed at an angle specific to
the size of the label in use. Angle the air jets to a point which is approximately
1/3 the length of the current label length, as measured from the peel bar.
Wider or longer labels may approximate the air jet angle to a point beyond 1/3
the label length, where shorter or narrower labels may target inside the 1/3
length zone. Repeated adjustment may prove necessary for optimum
operation.
Peel Bar
Label
The air jet will typically be adjusted for proper operation prior to being
shipped, but if further adjustments are necessary, proceed as follows:
1. Loosen the socket head screw holding the air tube into place.
2. Ensure that the proper holes in the air jet are open. The standard tube
comes with #6-32NC threaded holes and some of the holes may be
plugged with a small set screw. Add or remove set screws as necessary.
3. Turn the air tube adjustment so that the air jets are directed at
approximately 1/3 the length of the current label length as measured from
the peel bar.
4. Tighten the socket head screw into place to hold this adjustment.
50
Air Jet
Air Jet Tube
Figure 19. Positioning the Air Jets
Label Backing
Socket Head
Screw