Epson LX-300+II RTP User Manual

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 kΩ resister.
35 +5V -- Out This line is pulled up tp +5V through 1.0 kΩ resister.
17 Chassis -- -- Chassis GND.
16,
33,
19-30
GND -- --
Signal GND.
15, 34 NC -- -- Not connected.

Epson LX-300+II RTP Specifications

General

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