SNBC BTP-R580II Programming Manual page 65

• In standard mode, this command is enabled only when processed at the beginning of
the line.
• The 9 bytes <from FS~ zH > are processed as command data, not data of graphics.
• In the first group of NV bitmaps, when any parameter of the yL, yH, zL, zH is out of
the defined range, this command is disabled.
• When downloading several bitmaps, if the printer processes yL, yH, zL, zH out of the
defined range, it stops processing this command. At this time, bitmaps that haven't
been defined are disabled (undefined), but bitmaps before that are enabled.
• d indicates the defined bitmap data. Set a corresponding bit to be 1 for printing a dot,
or to be 0 for not printing a dot.
• This command defines n as the number of NV bitmaps. Numbers rise in order from
NV bitmap 1. Therefore, the first data group [yL yH zL zH d1...dk] is NV bitmap 1,
and the last data group [yLyH zL zHd1...dk] is NV bitmap n. It is the same when
printing bitmap using command FS p.
• Define a NV bitmap consisting of [yL yH zL zH d1...dk]. Therefore, when only one NV
bitmap, n=1. The printer uses bytes of Flash memory as follows:
([byte number of bitmap data: ( yL + yH × 256)× ( zL+ zH × 256)× 8] + [header: 4]).
• When processing this command, the printer does not process other commands.
• Once a NV bitmap is defined, it is not erased by performing ESC @, reset, or power
off.
• This command only defines a NV bitmap, but does not perform printing. Printing of
the NV bitmap is performed by the FS p command.
• Format of the gray scale bitmap: every dot line of gray scale image is indicated by
four dot lines of data. The four dot lines of data form different levels of gray scale
bitmaps. The table below shows the gray scale level of a dot and the data of this dot
in the four dot lines of data. The corresponding relation is as below:
[Relative] FS p
Actual gray Data of the
scale level first dot line
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 1
9 1
10 1
11 1
12 1
13 1
14 1
15 1
BTP-R580II Programming Manual
Data of the
second dot line
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
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Data of the Data of the
third dot line fourth dot line
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1