Epson Stylus Color 200 User Manual page 112

Reverse channel pin assignments (continued)
Pin
no. Signal name
14 HostBusy
31 INIT
32 DataAvail/
DataBit-0,4
36 1284-Active
18 Logic H
35 +5V
17 Chassis
16, GND
33,
19–
30
15, NC
34
* The column heading "In/Out" indicates the direction of signal flow as
viewed from the printer.
GND In/Out*
30 In
30 In
29 Out
30 In
— Out
— Out
— —
— —
— —
Technical Specifications
Description
Set LOW to indicate that
host can receive peripheral
device to host data. Then
set high to acknowledge
receipt of that nibble. Set
high in response to PtrClk
( n Ack) low pulse to re-enter
reverse data transfer phase.
Not used
This signal is LOW when the
printer is in an error state.
Set HIGH during 1284 mode.
This line is pulled up to +5V
through 3.9 k resistance.
This line is pulled up to +5V
through 1.0 k resistance.
Chassis GND
Signal GND
Not connected
A-13