SECTION 2 - SETUP AND TIMING ISSUES
2-2
SmartDate 5 08/08
2.2 Setup Issues
2.2.1 Air Pressure Settings
Make sure that the air is connected on the side of the printer body.
The setting of the air pressure is critical to the performance of the printhead.
• Check that the air pressure regulator is set to the required pressure (typically
between 3.0 to 4.5 bar.
• The regulator setting required depends upon the printhead gap; the distance
between the printhead, in it’s home position, and the print platen, or print
roller.
• Too little pressure will result in poor quality or no print.
• Too much pressure may result in increased physical wear on the printhead
and platen. The substrate is marked where the printhead has dug in.
• Exceeding the stated pressure will over stress the printhead.
• To get the optimum air pressure for the application, it is recommended that the
printhead to substrate gap is set between 1.0 and 2.0 mm. See below for
exact details.
• The air pressure should then be set to 3 bar and gradually increased until a
good quality print is apparent.
• The operation of the solenoid may be tested by using the Manual functions or
toggling the output on the I/O screen.
2.2.2 Print Anvil
The print roller and print platen are wear parts, and should be checked regularly
for damage.
If the print roller has become damaged this will cause print quality problems. For
example a flat spot on the roller rubber will appear as a repeated blank area on
the Test pattern. A worn area on the print platen rubber may cause the print to be
faded on one side.
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