Confidential
EPSON
TITLE
SHEET
REVISION
NO.
SHEET
NEXT
B
RP-U420 series
Specification
(STANDARD)
70
69
•
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 command 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.
•
With a parallel interface model, this command can not be executed when the printer is
busy. This command is executed even when the printer is off-line or there is an error
status when DIP switch 1-6 is on with a parallel interface model.
[Reference]
DLE ENQ, GS r
