Epson TM-L90 series, Programming Manual

Page: 567 / 679

C O N F I D E N T I A L
Paper roll Customize commands GS ( C Ver. 10.01 p. 567
GS ( C p
L
p
H
m fn b <Function 5>
[Name] Transmit the key code list
[Format] ASCII GS ( C
p
L
p
H
m fn b
Hex 1D 28 43
03 00 00 fn 00
Decimal 29 40 67 3 0 0 fn 0
[Range] (
p
L
+
p
H
×
256) = 3 (
p
L
= 3,
p
H
= 0)
m = 0
fn
= 5, 53
b
= 0
[Description] Transmits the key code list in the NV user memory.
• ESC/POS Handshaking Protocol is required for this function.
[Notes]
■
When record exists, the printer sends the “Header to NUL” data as shown below:
(*1)
When the quantity of stored data exceeds 40 records, the printer performs partial processing, using the
following rules:
• If there is unsent data, the identification status of the third byte is 41H or 65 decimal.
• If there is no unsent data, the identification status of the third byte is 40H or 64 decimal.
Send data Hex Decimal Data quantity
Header 37H 55 1 byte
Identifier 71H 113 1 byte
Identification status
(*1) (*2)
40H or 41H 64 or 65 1 byte
Data
(*3)
20H
−
7EH 32
−
126 2
−
80 bytes
NUL 00H 0 1 byte