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Media Detection Media detection in EPL2 printers is a combina
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tion of programming and printer media sensing.
The Q (Set Form Length) and O (Option) com
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mands program the media detection method.
The user must configure the printer for the me
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dia type and the (programmed) form or label in
use.
The printer can detect the beginning and end of
the printable area on the media by one of three
methods: Gap, Notch (hole), or Black line. The
Gap method detects the difference in optical
density of a label on a liner from the liner only
with the Transmissive (Gap) sensor. The Notch
method uses the Transmissive sensor to detect a
hole in the media (gap-less labels or tag stock).
The Black line method uses the Reflective sen
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sor to detect a preprinted black line on the me-
dia back (for gap-less labels or tag stock).
Printing on continuous media requires pro-
gramming to control media positioning.
EPL2 printers also support a “Label Dispense”
mode as a printer configuration option (for most
models). The printers use a “Label Taken” sen-
sor to detect the removal of a label.
One or more of these sensors may require user
adjustment or configuration for proper opera-
tion. All EPL2 printers have an AutoSense fea
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ture to optimize label and label gap detection by
the transmissive (gap) sensor. See the printer’s
user’s manual for printer specific sensor adjust
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ment control.
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980352-001 Rev.A