Printronix Auto ID T800 Series Administrator's Manual page 110

Host IO > Serial Port > One Char Enquiry
The One Char Enquiry mode uses the Poll Character to detect a request
from the host and sends a response back to the host. This option also allows
you to turn this feature on and off.
Printer State
ONLINE and Buffer Not Full
ONLINE and Buffer Full
OFFLINE and Buffer Not Full
OFFLINE and Buffer Full
The Poll Character is removed from the data stream. If the Data Protocol is
set to ETX/ACK, ACK/NAK, or Series1, One Char Enquiry is automatically
disabled.
Disable The feature is disabled
Enable The feature is enabled
Factory Default Disable
Host IO > Serial Port > Printer Status
With this feature, the printer will respond to an ENQ character by sending a
status byte to the host. The type of status byte is determined by this menu.
The selections allowed are ENQ/STX and ENQ.
Disable Printer status is not returned to the host.
ENQ / STX See Table 5
ENQ See Table 6
Factory Default Disable
The ENQ is removed from the data stream.
IMPORTANT
Response (hex)
22
23
20
21
110