25
n = 3: Transmit error status
n = 4: Transmit paper roll sensor status
[Notes]
The status is transmitted whenever the data sequence of
<10>H<04>H< n> (1
n
4) is
received.
Example:
In
ESC
m nL nH d1...dk
, d1=<10>H, d2=<04>H, d3=<01>H
This command should not be used within the data
sequence of another command that consists of 2 or more
bytes.
Example:
If you attempt to transmit
ESC 3 n
to the printer, but DTR
(DSR for the host computer) goes to MARK before n is
transmitted and then
DLE EOT 3
interrupts before n is
received, the code <10>H for
DLE EOT 3
is processed
as the code for
ESC 3 <
10>H.
Even though the printer is not selected using
ESC =
(select
peripheral device), this command is effective.
The printer transmits the current status. Each status is
represented by one byte data.
The printer transmits the status without confirming whether
the host computer can receive data.
The printer executes this c
ommand upon receiving it.
This command is executed even when the printer is off
-line,
the receive buffer is full, or there is an error status with a
serial interface model.
