Printronix T5204R Administrator's Manual page 57

Sensing Media with Dark Background Labels with Gaps
(Advanced Gap)
Upper Sensor
Visible Red Beam
Lower Sensor
NOTE: Ribbon is not displayed in this illustration. The upper and lower
The upper sensor and lower sensor are used together to detect liner gaps
between die cut labels that have a black or dark background on white or clear
liner.
1. Position the lower sensor directly under the center of the gap, and then
place the upper sensor directly over the lower sensor.
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 in the media. Then use the handle on the upper sensor to position it
directly above the lower sensor.
NOTE: When using ribbon, you may need to slide the ribbon to one side to
4. Select "Advanced Gap" in the Gap/Mark Sensor submenu under the
CALIBRATE CTRL menu. See "Sensing Different Media Types" on
page 59.
5. Perform an Auto Calibrate. See "Running Auto Calibrate" on page 60.
sensors are designed to function with or without ribbon installed.
adjust the upper sensor.
Positioning the Media Sensors
Upper Sensor
Handle
Media Guard
Opening
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