Sensors > Diagnostics - Printronix T8000 Administrator's Manual

This option allows the user to select the optimal threshold range for the label
stock. The printer defaults to using a threshold range of 50% of the positive
going pulse (see Sensors > Diagnostics > Media Profile) that represents
each gap, notch or mark detected after doing an Auto or Manual Calibrate.
The printer then detects anything within the label with that threshold range as
TOF. While this range is ideal for most medias, some labels with a preprinted
image, liner gap or inlay can confuse the media sensor(s) causing a false
TOF detection. In most cases this can be resolved by selecting a higher
threshold range so the printer will only trigger on the true TOF (gap, notch or
mark) position.
Minimum
Maximum
Factory
IMPORTANT
Sensors > Diagnostics
This executable menu provides a graphical printout showing the
relationship of the Paper Out Threshold and the Gap/Mark Threshold. The
profile printout assists you in setting the thresholds for difficult media. This
includes pre- printed labels, and labels with poor gap/media dynamic range.
Start
Completed
Sensors > Calibrate > Threshold Range
5%
95%
50%
A new threshold range will not take effect until
Calibration is successfully performed. A Sensors >
Diagnostics > Media Profile should be run after a
Calibrate to visually verify that the new range is the
best possible
Sensors > Diagnostics > Media Profile
When "Print Profile" is executed, the printer will
advance media and print the media profile along the
length of each label.
The printer will continue to print the profile until you
press the ↵ ENTER key.
selection.
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