Gossen THERMAL GRAPHICS PRINTERS IPP 144 - 40 G - Manual (Page 49)

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The required total number of bitmap image data is
((nL + nH x 256) x no. of data per line) bytes.
The format of bitmap data for a printer with n heating
elements in the head is as follows:
MSB LSB
d1 d2 d3 ...... d (n/8)
d (n/8)+1 d (n/8)+2 d (n/8)+3 ...... d (2n/8)
d (2n/8)+1 d (2n/8)+2 d (2n/8)+3 ...... d (3n/8)
:
:
.......
d (nL+nHx256)x(n/8)
<< Details >>
This command is effective only if this command is
entered at the start position of a line in the standard
mode.
d refers to bitmap image data. The bit for the dot to be
printed is „1“ and the bit for the dot not to be printed is
„0“.
The required number of image data per line is as follows
depending on the number of heating elements in the
head:
dots of heating element 192 dots 288 dots 384 dots 576 dots
No. data per line 24 bytes 36 bytes 48 bytes 72 bytes
<< Function >>
Specifies the raster bitmap image specified with
(nL + nH x 256) lines in the vertical direction.