Epson ES-1200C Pro PC, Service Manual

Page: 14 / 95

Manual
Product Description
1.3 INTERFACE SPECIFICATIONS
The and ES-12(M3C are equipped with the following external interfaces:
■
Bidirectional parallel interface
SCSI (Small Computer System Interface)
1.3.1 Bidirectional
Interface type:
Data format:
Synchronization:
Handshaking:
Logic level:
Connector type:
Data
timing:
Pin assignments:
Parallel Interface
Bidirectional parallel interface
8-bit parallel
By STROBE pulse
By
pulse
Input/output data and interface control signals are compatible.
36-pin 57-30360 or equivalent
See Figures 1-3 and 1-4.
See Table 1-3.
STROBE
BUSY
DATA
DIR
0.5 pa,
typical
1
0.5
minimum
0.5 pa,
minimum
I N
Figure 1-3. Data Transmission Timing (Host to Scanner)
STROBE
/
BUSY
DATA
DIR
OUT
4\ IN
Figure 1-4. Data Transmission Timing (Scanner to Host)
Rev.