Code Soft TP-290XIII Programmer's Manual page 18

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[Reference] FS p
[Example] When xL = 64, xH = 0, yL = 96, yH = 0
In page mode, this command is not effective.
This command is effective when 7 bytes <FS yH> is processed as a normal
value.
When the amount of data exceeds the capacity left in the range defined by
xL, xH, yL, yH, the printer processes xL, xH, yL, yH out of the defined range.
In the first group of NV bit images, when any of the parameters xL, xH, yL,
yH is out of the definition range, this command is disabled.
In groups of NV bit images other than the first one, when the printer
processes xL, xH, yL, yH out of the defined range, it stops processing this
command and starts writing into the NV images. At this time, NV bit images
that haven¡¯t been defined are disabled (undefined), but any NV bit images
before that are enabled.
The d indicates the definition data. In data (d) a 1 bit specifies a dot to be
printed and a 0 bit specifies a dot not to be printed.
This command defines n as the number of a NV bit image. Numbers rise in
order from NV bit image 01H. Therefore, the first data group [xL xH yL yH
d1...dk] is NV bit image 01H, and the last data group [xL xH yL yH d1...dk] is
NV bit image n. The total agrees with the number of NV bit images specified
by command FS p.
A definition data of a NV bit image consists of [xL xH yL yH d1...dk].
Therefore, when only one NV bit image is defined n=1, the printer processes
a data group [xL xH yL yH d1...dk] once. The printer uses ([data: (xL   x H ×
256) × (yL   y H × 256) × 8]   [ header :4])bytes of NV memory.
The definition area in this printer is a maximum of 64K bits (8K bytes). This
command can define several NV bit images, but cannot define a bit image
data whose total capacity [bit image data   h eader] exceeds 64K bits.
The printer is busy immediately before writing into NV memory.
The printer does not transmit ASB status and perform status detection during
processing of this command even when ASB is specified.
When this command is received during macro definition, the printer ends
macro definition,and begins performing this command.
Once a NV bit image is defined, it is not erased by performing ESC @, reset,
and power off.
This command performs only definition of a NV bit image and does not
perform printing. Printing of the NV bit image is performed by the FS p
command.
THERMAL RECEIPT PRINTER
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