Media With Horizontal Black Marks; Media With No Label Length Indicators - Printronix t8000 Administrator's Manual

Black Mark
(underside
of media)
Media Guard
Opening

Media with Horizontal Black Marks

Position the lower media sensor for detecting horizontal black marks located on the underside of media,
and position the upper sensor above the lower sensor to provide a consistent background.
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 to the center of the black mark on the media.
3. Select "Mark" in the Sensors > Control > Gap/Mark Sensor menu. See Sensing Different Media Types
page 40.
4. Perform an Auto Calibrate. See Running Auto Calibrate page 41.

Media with No Label Length Indicators

1. When using media without label length indicators (no gaps, notches, holes, or marks) or when you
want to ignore all existing length indicators, place the lower sensor in the center of the media so it can
detect when a Paper Out condition exists. Also set the upper sensor above it.
2. Select "Disable" in the Sensors > Control > Gap/Mark Sensor menu. See Sensing Different Media
Types page 40.
3. Perform an Auto Calibrate. See Running Auto Calibrate page 41
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Visible Red Beam
from Lower Sensor
Lower Sensor
Sensor Handle