SATO CG412 Guida Utente

Section 7: Interface Specifications

Page 7-5

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

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.

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

Pin no.

Signal Type

Direction

Description

2

RD

Input

Data transferred from the host to the printer

3

SD

Output

Data transferred from the printer to the host

5

SG

-

Signal ground

 

1) Host with DB-25P terminal 

Printer   Host 

RD 2 

 

2 SD 

SD 3 

 

3 RD 

SG 5 

 

7 SG 

 

2) Host with DB-9P terminal 

Printer   Host 

RD 2 

 

3 SD 

SD 3 

 

2 RD 

SG 5 

 

5 SG