Service manual

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: 8-bit parallel, IEEE-1284 compatibility mode

Synchronization: By

STROBE pulse synchronization

Handshaking: By BUSY and

ACKNLG signals

Signal level: TTL compatible level

Adaptable connector: 36-pin 57-30360 (Amphenol or equivalent)

Data transmission timing: See Figure 1-7 of the Stylus Pro XL Service Manual.

Note:

Transition time (rise time and fall time) of every input signal must be less than 0.2

Transition time (rise time and fall time) of every output signal must be less than 0.12

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

Product Description Stylus Pro XL+

1-4 Rev.A