Specifications

Confidential
EPSON
TITLE
SHEET
REVISION
NO.
SHEET NEXT
112 111
TM-L90
Specification
(STANDARD)
E
GS ( C p
L
p
H
m fn b [c1 c2] [d1...dk]
[Name] Edit NV user memory
[Description] • Deletes, stores, and moves data in the NV user memory specified by the function code fn.
fn Format
Function
number
Function
0, 48
GS ( C
p
L
p
H
m fn b c1 c2 Function 0 Deletes the specified record.
1, 49
GS ( C
pL pH m fn b c1 c2 d1...dk Function 1
Stores data in the specified
record.
2, 50
GS ( C
pL
p
H
m fn b c1 c2 Function 2
Sends the data in the specified
record.
3, 51
GS ( C
pL pH m fn b Function 3
Sends the number of bytes of
memory used.
4, 52
GS ( C
pL
p
H
m fn b Function 4
Sends the number of bytes of
remaining memory (unused
area).
5, 53
GS ( C
pL pH m fn b Function 5
Transmits the key code list
identifying the stored record.
6, 54
GS ( C
pL
p
H
m fn b d1 d2 d3 Function 6
Deletes all data in the NV user
memory.
•
p
L,
p
H
specify (p
L
+ p
H
× 256) for the number of bytes after p
H
(m, fn, b, [c1 c2], [d1...dk] ).
•
c1, c2 specify the key code (which identifies the record).
•
The total capacity of the NV user memory is selectable as any one of these: [1KB, 64KB,
128KB, or 192KB] with
GS ( E
. The default capacity is 1KB.
[Notes] • Frequent write command executions by this command may damage the NV memory.
Therefore, it is recommended to write to the NV memory no more than 10 times a day.
• While processing this command, the printer is BUSY while writing data to the NV user
memory and stops receiving data. Therefore it is prohibited to transmit data including the
real-time commands during the execution of this command.