
Pass Through Fields
l RFID Tags using Keyboard Datasource
l Images with non-fixed data sources
Note: Do not use Paragraph fields for Pass Through.
Lines, boxes, and barcode and RFID human readable fields configured as Pass Through fields will be discarded
(not printed) from the label.
Set Force Max # Chars to Do Not Force Max # Chars to avoid having Pass Through commands truncated.
Supplying Data
There are no restrictions on how you populate fields with the printer commands that you want to pass
through. You could use fixed data, pass commands as part of a script, or get commands from a file. You
can even enter commands in the text of a label.
XMLFiles
When passing data to a Pass Through field with an XML file, you must use escape encoding, (#xhh;)
when inserting low ASCII characters. See ASCII Characters in this guide for more information.
Supported Drivers
You can use Pass Through fields on labels using the following drivers/printer languages. Consult the
Programming or Printer Language guide for your printer for information on printer commands.
l IPL
l PCL5
l ZPLII
Note: Sample labels for each supported language are included in the <Program Files Folder>\Loftware
Labeling\Labels\Samples\Passthrough folder.
Loftware’s Professional Services Group can help you determine if Pass Through fields might help you
solve a particular business problem, and they can create customized Pass Through fields based on your
Loftware Print Server implementation and available hardware.
Creating a Pass Through Field
You create Pass Through fields by using a reserved field name prefix (ptfield). You can append a field
name to the prefix to create meaningful names. For example: ptfield_Aztec could be used to identify an
Aztec barcode. Using a prefix to identify a Pass Through field allows you to create multiple Pass
Through fields on a label.
Note: Sample labels for each supported language are included in the <Program Files Folder>\Loftware
Labeling\Labels\Samples\Passthrough folder. You can start by opening one of the sample labels, or by creating
a new label.
Loftware LabelManager Version 10.1.1 User's Guide
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