Epson 440 - Serial Interface

EPSON Stylus Color 600
Rev. A
1-2
0
1.3.3 Serial Interface
[Standard] :Based on RS-423
[Synchronization] :Synchronous
[Bit Rate] :Approx. 900Kbps
[Handshaking] :X-ON/X-OFF, DTR Protocol
[Word Format] :Data Bit = 8 bits
:Parity Bit = None
:Start Bit = 1 bit
:Stop Bit = 1 bit
[Connector] :8-pin mini-circular connector
[Recommended Cable] :Apple System Peripheral-8 Cable
(Part #: M0197)
Pin No. Signal Name I/O Description
1 SCLK O Synchronous clock signal
2 CTS I Clear To Send
3 TXD- O Transmit Data (-)
4 SG I (Signal Ground)
5 RXD- I Receive Data (-)
6 TXD+ O Balanced Transmit Data (+)
7 DTR O Data Terminal Ready
8 RXD+ I Balanced Receive Data (+)
State Buffer Space X-ON/X-OFF DTR
Busy Less than 3072 bytes Send X-OFF code OFF
Ready More than 5120 bytes Send X-ON code ON
Table 1-17. Pin Assignment
Table 1-18. X-ON/X-OFF and DTR Status