Printronix T5000 User Manual page 112

Chapter 3
CALIBRATE CTRL
Online Auto-Cal
NOTE: Online Auto-Cal will not function when the validator is enabled or
The options for Online Auto-Cal are:
•
Disable.
•
Enable. Whenever the printer is brought online, it automatically performs
an Auto Calibrate (see "Auto Calibrate" on page 109). Once the Auto
Calibrate is complete, the printer momentarily displays the Sensed
Distance determined by the Auto Calibrate and then resumes printing any
pending jobs.
NOTE: If using the Online Auto-Cal feature, you must first enable it prior to
The factory default is Disable.
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.
The options for Gap Windowing are Enable and Disable:
•
Enable. 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. 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.
The factory default is Disable.
Gap Length
Gap Length is the actual length (height) of a label gap measured in .01 inch
increments. The range is 0.05 to 1.00 inches.
NOTE: You must enter the correct Gap Length. If the Gap Length is too long,
The factory default is 0.12 inches.
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when Error Recover (under MEDIA CONTROL) is enabled (see page
106).
printing any data.
the image will shift down from the leading edge (TOF) of the label.