Interface Specifications; Forward Channel; Parallel Interface Specifications - Epson Stylus Pro XL Service Manual

Product Description

1.3 INTERFACE SPECIFICATIONS

The Stylus Pro XL+ comes standard-equipped with two interfaces: an 8-bit bidirectional parallel and an
RS-422 mini-DIN serial interface for the Macintosh. This printer is also equipped with a slot for an optional
Type B interface.

1.3.1 Parallel Interface Specifications

1.3.1.1 Forward Channel

Transmission mode:
Synchronization:
Handshaking:
Signal level:
Adaptable connector:
Data transmission timing:
Note:
Transition time (rise time and fall time) of every input signal must be less than 0.2 s.
Transition time (rise time and fall time) of every output signal must be less than 0.12 s.
The printer sets the BUSY signal HIGH before setting either the ERROR signal LOW or the PE signal HIGH.
BUSY is held HIGH until all these signals return to their inactive state. The BUSY signal is active (HIGH)
under the following conditions:
During data reception (See Figure 1-7 of the Stylus Pro XL Service Manual..)
When the input buffer is full
When the INIT input signal is active
During initialization
When the ERROR is active
During self-test
During default setting
When the parallel interface is not selected
The ERROR signal is active (LOW) under the following conditions:
When a paper-out error occurs
When a release lever operation error occurs
When a hardware error (a fatal error) occurs
The PE signal is active (HIGH) under the following conditions:
When a paper-out error occurs
1-4
8-bit parallel, IEEE-1284 compatibility mode
By STROBE pulse synchronization
By BUSY and ACKNLG signals
TTL compatible level
36-pin 57-30360 (Amphenol or equivalent)
See Figure 1-7 of the Stylus Pro XL Service Manual.
Stylus Pro XL+
Rev.A