Printhead Angularity Adjustment - Xerox QLS-8100XE Operation & Setup Manual

Printhead Angularity Adjustment

The color registration is monitored on the right side of the label as it exits the
printer. The Test Print (Proc. Block CMYK) on the display provides a test
pattern for adjusting the Print Line and Cross Web values. There is a
mechanical adjustment for aligning the color registration on the left side of
the label which positions all printheads precisely parallel to each other. The
following procedure is referred to as the color angularity adjustment.
Tools Needed:
1/4" Drive Rachet
3/8" Socket
7/64" Allen Wrench
1 Print a test pattern (Proc. Block CMYK) to ensure color alignment on the
right side of the label.
2 Scroll to Horizontal Line Pattern and print the process color lines across
the label.
3 Closely inspect the lines on the left side. If any colors are above or below
the lines then the printstation for that color requires an angle adjustment.
4 A 1/4" drive ratchet and 3/8" socket are required to loosen two nuts on
the printhead bracket. Access to these nuts is through the large 3/4"
holes in the black cover brackets over each printstation. Do not remove
these two nuts. Simply turn them counterclockwise 1/2 revolution.
5 Lift the printhead up by the handle. Locate the spring-loaded cap screw
behind the black ribbon guide roller at the rear of the printstation. The
screw faces the rear on the outside end of the printhead bracket. With a
7/64" Allen wrench turn the cap screw clockwise to shift the printed line
toward the front of the printer.
6 Lower the printhead and print the Horizontal lines. Note the physical
change in the printed line of the affected printstation. Repeat step 5 until
the printed line is directly over the other colors.
7 Tighten the two nuts on the printhead bracket. Care should be taken not
to over-tighten this hardware or damage to the printhead or print station
may result. When all printstations are aligned, all colors will be perfectly
superimposed on the process black line at the top of the test pattern.
QLS-8100 Xe 6-3