Zebra Technologies EPL2 - Manual (Page 70)

GW Command - Direct Graphic Write
Description Use this command to load binary graphic data
directly into the Image Buffer memory for im-
mediate printing. The printer does not store
graphic data sent directly to the image buffer.
The graphic data is lost when the image has fin-
ished printing, power is removed or the printer
is reset. Commands that size ( Q and q ) or clear
( N and M ) the image buffer will also remove
graphic image data.
Syntax GWp
1
, p
2
, p
3
, p
4
DATA¿
Parameters p
1
= Horizontal start position (X) in dots.
p
2
= Vertical start position (Y) in dots.
p
3
= Width of graphic in bytes. Eight (8) dots
= One (1) byte of data
p
4
= Length of graphic in dots (or print lines).
DATA = Raw binary data without graphic file
formatting. Data must be in bytes. Multi-
ply the width in bytes ( p
3
) by the num-
ber of print lines ( p
4
) for the total
amount of graphic data. The printer au-
tomatically calculates the exact size of
the data block based upon this formula.
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980352-001 Rev.A