USER’S GUIDE

Signal Description

Signal Name

IN/OUT Explanation

FG

Frame Ground

 

 

 

SD

OUT

Send Data.

 

 

 

RD

IN

Receive Data. Receives data transmitted from the

 

 

computer.

 

 

 

RS

OUT

Request To Send. “SPACE” level when the printer

 

 

is ready to send data to the computer.

 

 

 

DR

IN

Data Set Ready. When DSR is at “SPACE” level,

 

 

data can be accepted.

 

 

 

SG

Signal Ground

 

 

 

ER

OUT

Data Terminal Ready. “MARK” level when the

 

 

printer is Busy.

Appendix–12

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Image 418
Brother HL-1260 service manual Signal Name IN/OUT Explanation Frame Ground