User's Manual

60
Chapter 2 System Adjustments
Sensing Media with Gaps, Notches, or Holes (Gap)
Figure 24. Media with Gaps, Notches, or Holes
Position the lower media sensor for detecting gaps, notches, or holes in
media with a white background. Place the upper sensor above the lower
sensor to provide a consistent background.
1. Position the lower sensor directly under the center of the gap, 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. Use the sensor handle to manually position the sensor to the center of the
gap, notch, or hole in the media.
4. Set Gap/Mark Sensor to Gap in the CALIBRATE CTRL menu. See
“Sensing Different Media Types” on page 58.
5. Perform the Auto Calibrate procedure on page 63.
Media Guard
Opening
Visible Red Beam
from Lower Sensor