Transmit Capacity Of The Nv User Memory Currently Being Used - Epson TM-T88III Programming Manual

C O N F I D E N T I A L
GS ( C p p m fn b <Function 3>
L H
[Name]

Transmit capacity of the NV user memory currently being used

[Format] ASCII
Hex
Decimal
p p
[Range] ( +
L
m
= 0
fn
= 3, 51
b
= 0
[Description] Transmits the number of bytes of memory used in the NV user memory.
• ESC/POS Handshaking Protocol is not required for this function.
[Notes]
With this function, the printer sends the "Header to NUL" data shown below:
Send data
Header
Identifier
Capacity Used
NUL
(*1)
The decimal value expressing the capacity being used is converted to ASCII character data and sent from
the most significant digit.
Example:
The control information for NV graphics data is included in the capacity in use.
See previous [Notes for transmission process] for process sending data group.
Paper roll Customize commands
p p
GS ( C
L
1D 28 43 03 00 00 fn 00
3 0
29 40 67
× 256) = 3
p p
( = 3,
H L
Hex
37H
28H
(*1) 30H − 39H
00H
The quantity of stored data bytes, plus the key code and terminator, equal the capacity being used.
When 120 bytes is used, the number 120 is expressed with three bytes of data
(Hexadecimal: 31H, 32H, and 30H / decimal numbers 49, 50, and 48).
When no memory area is used, the number 0 is expressed with 1 byte of data
(Hexadecimal: 30H / decimal number 48).
GS ( C
m fn b
H
0 fn 0
= 0)
H
Decimal Data quantity
55 1 byte
40 1 byte
48 − 57 1 − 8 bytes
0 1 byte
Ver. 10.01 p. 565