User's Manual

Sensing Different Media Types
59
Sensing Media with Horizontal Black Marks (Mark)
Figure 23. Media with Horizontal Black Marks
Position the lower media sensor for detecting horizontal black marks located
on the underside of media.
1. Check the position of the 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.
2. Use the sensor handle to manually position the sensor as close as
possible to the center of the black mark on the media.
3. Set Gap/Mark Sensor to Mark in the CALIBRATE CTRL menu. See
“Sensing Different Media Types” on page 58.
4. Perform the Auto Calibrate procedure on page 63.
Lower Sensor
Media Guard
Opening
Black Mark
(underside
of media)
Sensor Handle
Visible Red Beam
from Lower Sensor