Printronix SLPA8000 User Manual page 60

Chapter 2
System Adjustments
Sensing Dark Background Media with Notches or Holes
(Advanced Notch)
Fixed Upper Sensor
Visible Red Beam
Lower Sensor
Black line
on underside
of media
Figure 26. Dark Background Media with Notches or Holes
NOTE: Ribbon is not displayed in this illustration. The upper and lower
The upper sensor and lower sensor are used together to detect notches or
holes in media with a black or dark underside. This combination can be found
on tag stock that has a black vertical line along one edge on the underside of
the label, interrupted by a notch or hole used as the label length indicator.
1. Position the lower sensor so that the left edge of the beam is slightly to
the right of the left edge of the die cut label directly under the center of the
notch or hole.
2. Check the position of the lower sensor by looking through the long,
narrow opening in the media guard. Use the visible red light emitting from
the lower sensor as a reference pointer.
3. Set Gap/Mark Sensor to Advanced Notch in the CALIBRATE CTRL
menu. See "Sensing Different Media Types" on page 56.
4. Perform the Auto Calibrate procedure on page 61.
60
sensors are designed to function with or without ribbon installed.
Media Guard
Opening