LR2000 Programming Manual V1.2
In ESC m nL nH d1...dk, d1=<10>H, d2=<04>H, d3=<01>H
Do not use this command within 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.
The printer transmits the current status. Each status item is represented by one-byte
of data.
The printer transmits the status without confirming whether the host computer can
receive data.
The printer executes this command upon receiving it.
This command is executed even when the printer is offline, the receive buffer is full, or
there is an error status with a serial interface model.
With a parallel interface model, this command cannot be executed when the printer is
busy. This command is executed even when the printer is offline or in error status, with
a parallel interface model.
When Auto Status Back (ASB) is enabled using the GS a command, the status
transmitted by the DLE EOT command and the ASB status must be differentiated.
n = 1: Printer status
Drawer open/close signal is LOW.(connector pin3)
Drawer open/close signal is HIGH.(connector pin3)
n = 2: Offline status
Paper is not being fed by using the FEED button.
Paper is being fed by the FEED button.