Physical Specifications; Interfaces; Parallel Interface - Epson STYLUS COLOR 3000 Service Manual

Product Description

Physical Specifications

Weight


Dimensions
Refer to the Appendix for details.

1.4 Interfaces

The EPSON Stylus COLOR 3000 is equipped with parallel and Macintosh serial interfaces and a card slot for
an optional Type-B interface. This section provides information on each interface.

Parallel Interface

Forward Channel


Transmission mode


Synchronization


Handshaking


Signal level


Adaptable connector
Table 1-18. Signal level of TTL Compatible (IEEE-1284 level 1 device)
Parameter
VOH*
VOL*
IOH*
IOL*
CO
VIH
VIL
IIH
IIL
CI
∗ A LOW logic level on the Logic H signal is as follows:
2.0 V or less when the printer is turned off.
3.0 V or more when the printer is turned on.
The receiver provides an impedance equivalent to 7.5 K ohms to ground.
The BUSY signal is set HIGH before setting either /ERROR LOW or PE HIGH, and held HIGH until these
signals return to an inactive state. The BUSY signal is HIGH:


During data entry.


When the input data buffer is full.


While /INIT signal is at LOW level or during hardware initialization.


During a printer error condition (See /ERROR signal).


During test printing.


When the printer is in default setting mode.
1-16
49.6 lb (22.5 Kg)
31.9 in (W) × 22.2 in (D) × 9.4 in (H)
(810 mm × 565 mm × 240 mm)
8 bit parallel, IEEE-1284 compatibility mode
By /STROBE pulse
By /BUSY and /ACKNLG signal
TTL compatible
57-30360 (Amphenol) or equivalent
Minimum
-
-0.5 V
-
-
-
-
0.8 V
-
-
-
Maximum Condition
5.5 V
-
0.32 mA VOH = 2.4 V
12 mA VOL = 0.4 V
50 pf
2.0 V
-
0.32 mA VIH = 2.0 V
12 mA VIL = 0.8 V
50 pf
EPSON Stylus Color 3000 Service Manual