Intermec EasyCoder PM4i User Manual page 12

string must be no more than 16 characters. Default text is VOID. The
text is centered on the label, written with the "Swiss 721 Bold BT" font,
and resized to cover 80% of the label width. You may enter an empty
string as "".
RFID,TAGADJUST
Specifies the distance (in number of dots) the label will be moved to align
the tag under the antenna to enable successful read and write operations.
The label is moved before the printer attempts to access the tag. A
negative value will retract the label, while a positive value will cause the
label to be moved forward prior to RFID operations. Default is zero,
and only absolute values equal to or smaller than the max label length
are allowed. To ensure the media is not retracted past the printhead, the
maximum backward motion is restricted electronically.
Note: For most types of RFID labels, you will not be required
to change the Tagadjust variable. 4x2-inch labels however
are the exception. In this case you should set Tagadjust
to -104 (printhead resolution 203 dots/inch) or -153
(printhead resolution 300 dots/inch). Be sure to check the
recommendations for your RFID media, as these values may
vary slightly between different types of media.
RFID,FIELDSTRENGTH
This parameter (a value between 0 and 100) indicates the level of
the field strength that the antenna applies in order to communicate
with the RFID tag. By default, this is set to the maximum value. You
should not change this parameter unless it is explicitly stated in the
recommendations for your RFID media.
6 RFID Kit (Gen 2, 869/915 MHz) User's Guide