Transmit The Remaining Capacity Of The Nv User Memory - 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 4>
L H
[Name]

Transmit the remaining capacity of the NV user memory

[Format] ASCII
Hex
Decimal
p p
[Range] ( +
L
m
= 0
fn
= 4, 52
b
= 0
[Description] Transmits the number of bytes of remaining memory (unused area) 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
Available Capacity
NUL
(*1)
The decimal value for the available capacity is converted to ASCII character data and sent from the most
significant digit.
Example:
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 H
Hex
37H
29H
(*1) 30H − 39H
00H
The available capacity indicates the number of bytes not being used.
When 120 bytes is available (not being used), the number 120 is expressed with
3 bytes of data (Hexadecimal: 31H, 32H, and 30H / decimal numbers = 49, 50, and 48).
GS ( C
m fn b
H
0 fn 0
= 0)
Decimal Data quantity
55 1 byte
41 1 byte
48 − 57 1 − 8 bytes
0 1 byte
Ver. 10.01 p. 566