EPSON LX-300+II/300+II RTP/1170II
Revision D
PRODUCT DESCRIPTION
Interface Specifications
20
1.3.2 Parallel Interface (Reverse Channel)
Transmission mode:
IEEE-1284 nibble mode
Adaptable connector:
See 1.3.1 “Parallel Interface (Forward Channel)”
Synchronization:
Refer to the IEEE-1284 specification
Handshaking:
Refer to the IEEE-1284 specification
Signal level:
IEEE-1284 level 1 device
See 1.3.1 “Parallel Interface (Forward Channel)”
Data transmission timing:
Refer to the IEEE-1284 specification
Extensibility request:
The printer responds to the extensibility request
affirmatively, when the request is 00H or 004H,
which means;
00H: Request for nibble mode of reverse channel transfer
04H: Request device ID in nibble mode of reverse channel transfer
Device ID: The printer sends following device ID string when it is requested.
When IEEE1284.4 is enabled;
When IEEE1284.4 is disabled;
NOTE:
In/Out shows the direction of signal flow as viewed from the printer.
[00H][4EH]
MFG: EPSON;
CMD: ESCP9,PRPII9,BDC,D4;
MDL: LX-300+II;
CLS: PRINTER;
DES: EPSON[SP]LX-300+II;
[00H][4EH]
MFG: EPSON;
CMD: ESCP9,PRPII9,BDC,D4;
MDL: LX-1170II;
CLS: PRINTER;
DES: EPSON[SP]LX-1170II;
LX-300+II
LX-1170II
[00H][4BH]
MFG: EPSON;
CMD: ESCP9,PRPII9,BDC;
MDL: LX-300+II;
CLS: PRINTER;
DES: EPSON[SP]LX-300+II;
[00H][4BH]
MFG: EPSON;
CMD: ESCP9,PRPII9,BDC;
MDL: LX-1170II;
CLS: PRINTER;
DES: EPSON[SP]LX-1170II;
LX-300+II
LX-1170II
Table 1-17. Connector Pin Assignment and Signals (Reverse Channel)
Pin
No.
Signal Name
Return
GND Pin In/Out
Functional Description
1
HostClk
19
In
Host clock signal.
2
DATA1
20
In
Parallel input data to the printer.
bit 0: LSB
3
DATA2
21
In
bit 1
4
DATA3
22
In
bit 2
5
DATA4
23
In
bit 3
6
DATA5
24
In
bit 4
7
DATA6
25
In
bit 5
8
DATA7
26
In
bit 6
9
DATA8
27
In
bit 7: MSB
10
PtrClk
28
Out
Printer clock signal.
11
PtrBusy/
DataBit-3,7
29
Out
Printer busy signal and reverse channel transfer data bit
3 or 7.
12
AckDataReq/
DataBit-2,6
28
Out
Acknowledge data request signal and reverse channel
transfer data bit 2 or 6.
13
Xflag/
DataBit-1,5
28
Out
X-flag signal and reverse channel transfer data bit 1 or 5.
14
HostBusy
30
In
Host busy signal.
31
-INIT
30
In
Not used.
32
-DataAvail/
DataBit-0,4
29
Out
Data available signal and reverse channel transfer data
bit 0 or 4.
36
1284-Active
30
In
1284 active signal.
18
Logic-H
--
Out
This line is pulled up to +5V through 3.9 k
Ω
resister.
35
+5V
--
Out
This line is pulled up tp +5V through 1.0 k
Ω
resister.
17
Chassis
--
--
Chassis GND.
16,
33,
19-30
GND
--
--
Signal GND.
15, 34
NC
--
--
Not connected.
Содержание cLX-300+II RTP
Страница 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 42: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 56: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 65: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 85: ...C H A P T E R 5 ADJUSTMENT ...
Страница 92: ...C H A P T E R 6 MAINTENANCE ...
Страница 97: ...C H A P T E R 7 LX 300 IIRTP ...
Страница 110: ...APPENDIX ...
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