SATO CG4 Series Operator's Manual page 77

7.2 RS232C HIGH SPEED SERIAL INTERFACE (cont'd)
7.2.3 X-ON/X-OFF
This transmission protocol informs the host if the printer is ready to receive data, by sending the "XON" (Hex
11H) or "XOFF" (Hex 13H) code.
When the print data (STX ESC+"A"~ ESC+"Z" ETX) is sent from the host in the conditions below, received
data may be incorrect.
1) When the printer is Offline
2) When an error has occurred in the printer
Pin Assignments
1) Host with DB-25P terminal
Printer
RD 2
SD 3
SG 5
Note:
Depending on the host used, it may need to loop CS and RS (maintaining at "High" level) on the host side.
Therefore, make sure to re-check the host before use.
Input/Output Signals
Pin no. Signal Type
2
3
5
7.2.4 Return Status (STATUS 3 and Protocol for Driver (STATUS 4))
The purpose of these protocols is to control printer status on the host side. With the request command from
the host, the status is returned from the printer.
After receiving the request command, the status is returned immediately.
In these communication protocols, receive mode is set to multi item buffer.
When the print data (STX ESC+"A"~ ESC+"Z" ETX) is sent from the host in the conditions below, received
data may be incorrect.
1) When the printer is Offline
2) When an error has occurred in the printer
CG4 Series Operator Manual
Host
2 SD
3 RD
7 SG
Direction
RD Input
SD Output
SG -
Section 7: Interface Specifications
2) Host with DB-9P terminal
Printer
RD 2
SD 3
SG 5
Description
Data transferred from the host to the printer
Data transferred from the printer to the host
Signal ground
Host
3 SD
2 RD
5 SG
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