Macintosh Serial Interface - Epson STYLUS COLOR 3000 Service Manual

Product Description
Device ID
The printer sends following device ID strings upon request:


[00H] [xxH]


MFG EPSON


CMD ESCPL2, PRPXL, BDC


MDL Stylus COLOR 3000


CLS PRINTER
Note: [00H] denotes a hexadecimal value of zero.

Macintosh Serial Interface

Standard
Synchronization
Bit rate
Word format
Handshaking
Adaptable connector
Recommended I/F cable
Table 1-23. Connector Pin Assignments for the Serial Interface
Pin No.
1
2
3
4
5
6
7
8
State
Busy
Ready
1-20
RS-423 compliant
Synchronous
Approximately 900 Kbps, 1.8 Mbps
Start bit 1 bit
Data bit 8 bit
Parity bit No parity bit
Stop bit 1 bit
X-ON/X-OFF, DTR protocol
8-pin mini circular connector
Apple System Peripheral-8 cable
Signal Name I/O
SCLK O
CTS I
TxD- O
S.G. I
RxD- I
TxD+ O
DTR O
RxD+ I
Table 1-24. X-ON/X-OFF, DTR Protocol
Buffer space
Less than 1024 bytes
More than 2048 bytes
Function Description
Synchronous clock
Clear to send
Transmit data -
Signal Ground
Receive data -
Balanced Transmit +
Data terminal ready
Balanced Receive +
X-ON/X-OFF
Send X-OFF code
Send X-ON code
EPSON Stylus Color 3000 Service Manual
DTR
Off
On