Epson LQ-570e - Parallel Interface (Reverse Channel)

EPSON LQ-570e/LQ-580 Revision C
Product Description Interface Specifications
2
7
1.4.2 Parallel Interface (Reverse Channel)
o Transmission mode: IEEE-1284 nibble mode
o Adaptable connector: See 1.4.1 "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 1.4.1 "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 Market ID=0
*1
When IEEE1284.4 is enabled;
When IEEE1284.4 is disabled;
n Market ID=1
When IEEE1284.4 is enabled;
When IEEE1284.4 is disabled;
[00H][4EH]
MFG: EPSON;
CMD: ESCPL2,PRPXL24,BDC,D4;
MDL: LQ-580;
CLS: PRINTER;
DES: EPSON[SP]LQ-580;
[00H][4BH]
MFG: EPSON;
CMD: ESCPL2,PRPXL24,BDC;
MDL: LQ-580;
CLS: PRINTER;
DES: EPSON[SP]LQ-580;
[00H][50H]
MFG: EPSON;
CMD: ESCPL2,PRPXL24,BDC,D4;
MDL: LQ-570e;
CLS: PRINTER;
DES: EPSON[SP]LQ-570e;
[00H][4DH]
MFG: EPSON;
CMD: ESCPL2,PRPXL24,BDC;
MDL: LQ-570e;
CLS: PRINTER;
DES: EPSON[SP]LQ-570e;
Table 1-23. Connector Pin Assignment and Signals
Pin No. Signal Name
Return
GND
Pin
In/Out Function 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.