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LX-300+/1170
Revision C
PRODUCT DESCRIPTION
Interface Specifications
23
1.3.2 Parallel Interface (Reverse Channel)
o
Transmission mode:
IEEE-1284 nibble mode
o
Adaptable connector:
See 1.3.1 "Parallel Interface (Forward Channel)"
o
Synchronization:
Refer to the IEEE-1284 specification
o
Handshaking:
Refer to the IEEE-1284 specification
o
Signal level:
IEEE-1284 level 1 device
See 1.3.1 "Parallel Interface (Forward Channel)"
o
Data transmission timing:
Refer to the IEEE-1284 specification
o
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
o
Device ID: The printer sends following device ID string when it is requested.
n
When IEEE1284.4 is enabled;
n
When IEEE1284.4 is disabled;
[00H][4EH]
MFG: EPSON;
CMD: ESCPL2,PRPXL24,BDC,D4;
MDL: LX-300+;
CLS: PRINTER;
DES: EPSON[SP]LX-300+;
[00H][4EH]
MFG: EPSON;
CMD: ESCP9,PRPII9,BDC,D4;
MDL: LX-1170;
CLS: PRINTER;
DES: EPSON[SP]LX-1170;
LX-300+
LX-1170
[00H][4BH]
MFG: EPSON;
CMD: ESCPL2,PRPXL24,BDC;
MDL: LX-300+;
CLS: PRINTER;
DES: EPSON[SP]LX-1170;
[00H][4BH]
MFG: EPSON;
CMD: ESCP9,PRPII9,BDC;
MDL: LX-1170;
CLS: PRINTER;
DES: EPSON[SP]LX-1170;
LX-300+
LX-1170
Table 1-13. 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.
bit0:LSB
3
DATA2
21
In
bit1
4
DATA3
22
In
bit2
5
DATA4
23
In
bit3
6
DATA5
24
In
bit4
7
DATA6
25
In
bit5
8
DATA7
26
In
bit6
9
DATA8
27
In
bit7: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.
Содержание LX-1170
Страница 1: ...EPSONLX 300 1170 9 pin Serial Impact Dot Matrix Printer SEDM997003 SERVICE MANUAL LX 300 LX 1170 ...
Страница 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 44: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 60: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 69: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 89: ...LX 300 1170 Revision C Disassembly and Assembly Disassembly and Assembly 89 ...
Страница 90: ...C H A P T E R 5 ADJUSTMENT ...
Страница 98: ...C H A P T E R 6 MAINTENANCE ...
Страница 103: ...C H A P T E R 1 9 7 APPENDIX ...
Страница 112: ...LX 300 1170 Revision C Appendix Component Layout 112 C294 MAIN B BOARD Figure 7 3 Component Layout C294 MAIN B Board ...
Страница 114: ...LX 300 1170 Revision C Appendix Component Layout 114 C294PNL BOARD Figure 7 6 Component Layout C294PNL ...
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