Specifications

Programmers Guide TH230/TH230+
130
• The key codes list data in the NV graphics is distinguished from other
send data by unique data inserted in each data block. When the header
sent from the printer has a hexadecimal value of 0x37 and decimal value
of 55, process the data up to NUL (hexadecimal value 0x00 and decimal
value 0) as a single data group, using the data shown in the table below
for identification.
Send Data Hexadecimal Decimal
First byte (header) 0x37 55
Second byte
(identifier)
0x72 114
• Note that the following procedures are required for processing the data.
• When communication with the printer uses XON/XOFF control, the
XOFF may interrupt the “Header to NUL” data string.
• Do not use this function in conjunction with NV bit images (FS q).
GS ( L p
L
p
H
m fn d1 d2 d3 (fn=65)
Code ASCII:
GS ( L p
L
p
H
m fn d1 d2 d3
Code HEX:
0x1D 0x28 0x4C 0x05 0x00 0x30 0x41 0x43 0x4C 0x52
Range: (p
L
+ p
H
× 256) = 5 (p
L
= 5, p
H
= 0)
m = 48
fn = 65
d1 = 67
d2 = 76
d3 = 82
Description: Deletes NV graphics data that has been defined using Function 67.
• Deleted areas are designated “Unused areas.”
• All key codes are designated as undefined.
Notes:
• Use this function at the beginning of the line when the standard mode is
selected.
• This function is incompatible with macros, so be sure to avoid including
it when defining macros.
• When NV graphics data is being shared by multiple applications,
executing this function will delete all data being used by all applications.
Caution is required when using this function.