621
Return status
The purpose of return status is to manage the status of this product from the host, and the product
returns the status by request command from host.
There are three types of return status format, Status 3, Status 4, and Status 5. Each return status is
listed below.
The product returns the status after receiving request command.
Communication
protocol
Command Command name Remarks
READY/BUSY
- -
XON/XOFF
- -
ENQ Status request command
Status 3
CAN Cancel request command
ENQ Status request command
CAN Cancel request command
DLE Print end request
command
Status 4
DC1 Print start request
command
SOH + ENQ Status request command
SOH + CAN Cancel request command
SOH + DLE Print end request
command
Status 5
SOH + DC1 Print start request
command
* In status 3 and 4, the printer processes the command for ESC+ENQ and ESC+CAN and then returns the
status, however, for ESC+DLE and ESC+DC1, the printer neither processes the command, nor returns the
status.
Remarks
When you acquire return status from this product, please input transmission interval time after
sending each command to printer.
Command Command name Transmission interval
time (Actual value)
ENQ (05H) Status request 5 ms or more
* 300 ms or more for Wireless LAN
CAN (18H) Cancel request
DLE (10H) Print end request
DC1 (11H) Print start request
500 ms or more