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.
Summary of Contents for cLX-300+II RTP
Page 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 42: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 56: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 65: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Page 85: ...C H A P T E R 5 ADJUSTMENT ...
Page 92: ...C H A P T E R 6 MAINTENANCE ...
Page 97: ...C H A P T E R 7 LX 300 IIRTP ...
Page 110: ...APPENDIX ...
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