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Pin No.
Signal name
21~24
N/C
25
INIT
Direction
IN
13
25
– 55 –
2) ESC/POS Mode
A) DTR/DSR communication mode
Indicates whether data receive from host is enabled or
disabled.
Space: Receive enabled
Mark: Receive disabled
The busy condition can be changed by using Memory
switch as follows:
Printer status
1. During the period from when
the power is turned on (includ-
ing resetting using the interface)
to when the printer is ready to
receive data.
2. During the self printing.
3. When the cover is open.
4. During the paper feeding by
FEED button.
5. When the printer stops printing
due to a paper-end.
6. During macro executing standby
status.
7. When an error has occurred.
8. When the receive buffer becomes-
full.
B) X-On/X-Off Communication Mode
Always space, except during following condi-
tions:
• Period between reset and communication ena-
bled
• During self printing
Not used.
When DIP Switch 3-8 = OFF;
Status of this signal is not checked.
When DIP Switch 3-8 = ON;
This is an externally reset signal.
A space above 1 ms pulse width engages reset.
14
Function
Memory SW 4-4
1
BUSY
BUSY
—
—
—
—
—
BUSY
1
D-sub 25 Pin
0
BUSY
BUSY
BUSY
BUSY
BUSY
BUSY
BUSY
BUSY
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