Ready/Busy; Connection Diagram; I/O Signal - SATO CL4NX Programming Reference Manual

READY/BUSY

This communication protocol controls the reception of print data by the control of hard signal only
without having software methods.
When the print data (STX <A> ~ <Z> ETX) has been sent from the host in the conditions below,
received data may not be accurate:
1) When the printer is in offline state.
2) When an error has occurred in the printer.

Connection diagram

I/O signal

Timing chart of multiple receive
Parent topic RS-232C
Connection diagram
1) DB-9P
Printer
CD 1
RD 2
SD 3
ER 4
SG 5
DR 6
RS 7
CS 8
Parent topic READY/BUSY
I/O signal
Pin No.
2 RD
3 SD
4 ER
5 SG
6 DR
7 RS
8 CS
Parent topic READY/BUSY
Host
1
3
2
6
5
4
8
7
Signal I/O
name
Input
Output
Output
-
Input
Output
Input
CD
SD
RD
DR
SG
ER
CS
RS
Data transferred from the host to the printer
Data transferred from the printer to the host
Data device ready
Signal ground
Data set ready
Transmission request
Transmission available
651
Description