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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