Interface Specifications; Parallel Interface Specifications; Figure 1-7. Data Transmission Timing - Epson Stylus Pro Service Manual

Stylus Pro Service Manual

1.3 INTERFACE SPECIFICATIONS

The Stylus Pro is standard-equipped with an 8-bit parallel and serial interface.

1.3.1 Parallel Interface Specifications

Data format:
Synchronization:
Handshaking:
Signal level:
Adaptable connector:
Data transmission timing:
B US Y
A C KN L G
DA T A
ST ROBE
Note: Transition time (rise time and fall time) of every input signal must be less than 0.2
s.
The Busy signal is active (HIGH) under the following conditions:
r During data reception (See Figure 1-7.)
r When the input buffer is full
r When the INIT input signal is active
r During initialization
r When the ERROR or PE signal is active
r During the self-test mode
r During the demonstration mode
r During the default setting mode
r When a fatal error occurs
The ERROR signal is active (LOW) under the following conditions:
r When a paper-out error occurs
r When a no ink cartridge error occurs
r When a fatal error occurs
The PE signal is active (HIGH) under the following conditions:
r When a paper-out error occurs
r When a fatal error occurs
Rev.B
8-bit parallel
By STROBE pulse synchronization
By BUSY and ACKNLG signals
TTL compatible level
36-pin 57-30360 (Amphenol or equivalent)
See Figure 1-7.

Figure 1-7. Data Transmission Timing

Approx. 5 µs
Approx. 5 µs
0.5 µs (minimum)
0.5 µs (minimum)
0.5 µs (minimum)
Product Description
1-9