DR300 Operator Manual

Chapter 10 - Serial Interface

 

 

 

 

 

 

 

 

2 : Input/Output Signal Explanation

 

 

 

 

 

 

 

 

Pin No.

Signal

Direction

Contents

 

 

 

Name

 

 

 

 

1

F G

-

Frame ground

 

 

2

S D

Output

Data to be transmitted from printer to host

 

 

3

R D

Input

Data to be transmitted from host to printer

 

 

7

S G

-

Signal ground

 

Status 3 Protocol

1 : Status-3 protocol enables host to have full control of the printer by knowing the printer status. Printer sends status immediately upon receiving enquiry command from host. This protocol can only be used for multi items receive buffer setting.

Data stream (ESC + “A” ~ ESC + “Z”) from host might not be fully received by printer under the following conditions:

Printer is in printing process

Printer is engaged with error condition

2 : Cable connection

 

Host

Printer

FG

 

1 FG

RD

2 SD

SD

3 RD

SG

 

7 SG

 

Some host needs looping of RS and CS at host side to keep signal High 3 : Input/Output signal explanation

Pin No.

Signal

Direction

Contents

 

Name

 

 

1

F G

-

Frame ground

2

S D

Output

Data to be transmitted from printer to host

3

R D

Input

Data to be transmitted from host to printer

7

S G

-

Signal ground

79

Page 81
Image 81
SATO DR300 manual Status 3 Protocol