Specifications

Table Of Contents
Programming
Sequences Affect
Graphic Results
Graphic elements can interact and the resultant
image can be affected by other commands.
Structure command sequences to reduce the
chances of unexpected print results. The printer
will process lines, text, boxes and most bar
codes in command sequence. The printer then
processes the printer control processes, coun
-
ters, variable data, Postnet, and then graphics
last. See the programming examples in Appen
-
dix H.
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-
dia type and the programmed form 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-
sor to detect a preprinted black line on the me
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dia back (for gap-less labels or tag stock).
Printing on continuous media requires pro
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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
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sor to detect the removal of a label.
One or more of these sensors may require user
adjustment or configuration for proper opera
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tion. All EPL2 printers have an AutoSense fea
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ture to optimize label and label gap detection by
the transimissive (gap) sensor. See the printer’s
user’s manual for printer specific sensor adjust
-
ment control.
980009-001 Rev.F 1-21
PROGRAMMING CONSIDERATIONS