Epson LX-300+II RTP User Manual

EPSON LX-300+II/300+II RTP/1170II Revision D
PRODUCT DESCRIPTION Interface Specifications 18
1.3 Interface Specifications
LX-300+II/LX-1170II is provided with bi-directional 8 bit parallel interface and serial
interface and USB interface. Optional interface board is not supported on this model.
1.3.1 Parallel Interface (Forward Channel)
 Transmission mode: 8 bit parallel
IEEE-1284 compatibility mode
 Adaptable connector: 57-30360 (Amphenol) or equivalent
 Synchronization: -STROBE pulse
 Handshaking: BUSY and -ACKLG signals
 Signal level: TTL compatible
(IEEE-1284 level 1 device)
Figure 1-6. Data Transmitting Timing
Table 1-14. Parameter
Parameter Minimum Maximum Condition
V
OH
*-- 5.5V
V
OL
* -0.5V --
I
OH
* -- 0.32mA V
OH
=2.4V
I
OL
* -- 12mA V
OL
=2.4V
C
O
-- 50pF
V
IH
-- 2.0V
V
IL
0.8V --
I
IH
-- 0.32mA V
IH
=2.0V
I
IL
-- 12mA V
IL
=0.8V
C
I
-- 50pF
NOTE: * Logic-H signal is 2.0V or lower when the printer is off and the signal
is 3.0V or higher when the printer is on. The receiver has impedance
which is equivalent to 7.5 k
Ω.
Table 1-15. Maximum & Minimum Timings for Data Transmission
Parameter Minimum Maximum
t
setup
500 nsec --
t
hold
500 nsec --
t
stb
500 nsec --
t
ready
0 --
t
busy
-- 500 nsec
t
reply
-- --
t
ack
500 nsec 10 us
t
nbusy
0 --
t
next
0--
t
tout
* -- 120 nsec
t
tin
** -- 200 nsec
NOTE: * Rise and fall time of output signals.
** Rise and fall time of input signals.

Epson LX-300+II RTP Specifications

General

Brand	Epson
Model	LX-300+II RTP
Category	Printer
Language	English