Printronix T6000 Administrator's Manual page 77

Sensors > Calibrate > Online Action
Whenever the printer is brought ONLINE, it automatically performs an Auto
Calibrate if enabled. This option should only be set before any data is sent to
the printer.
Disable
Auto-Cal
Factory
IMPORTANT
Sensors > Calibrate > Gap Windowing
This feature compensates for any early falling edges or spurious peaks and
troughs that may appear within the gap length in media. These edges or
peaks and troughs can cause unreliable detection of the leading edge of the
next label (top-of-form). Use Gap Windowing to resolve the following
problems:

Loss of one or more complete (serialized) labels.

Start of an image printed in the middle of a gap, especially with fanfold,
perforated media.

Top part of an image lost when printing in head-first orientation.
Disable
Enable
Factory
No Auto Calibration is performed when going ONLINE.
Once the Auto Calibrate is complete, the printer
momentarily displays the Sensed Distance and then
resumes printing any pending jobs.
Disable
If Ticket Save mode is enabled, you will not be able
to enable this menu. A warning message will be
displayed instead.
When the leading edge of a gap is detected, the printer
continuously looks for the leading edge of the next
label and uses it as the TOF position. Perforations or
unusual media discrepancies within the gap can cause
inaccurate TOF detection.
When the leading edge of a gap is detected, the printer
ignores the first 90% of the gap length value specified
in the Gap Length menu option. The result is that cross
perforations or unusual media discrepancies within the
gap are filtered out, allowing the printer to reliably
detect the actual leading edge of the next label and use
it as the TOF position.
Disable
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