Epson LQ-1000 User Manual - Page 130
Serial Interface, Odd, Even, or Non-Parity see Table A-4
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Serial Interface Connector pin assignments and a description of respective interface signals are shown in Table F-3. Table F-3. Pins and signals Pin No. 1 2 Signal name Not used REV (Reverse channel) 3 RXD 4 Not used 5 Signal GND 6 Chassis GND Dir Functional Description - Reserved. OUT Indicates printer is ready to receive data or not. MARK level indicates printer is not ready to receive data. I N Receives data (RS-232C level) - Reserved. - Signal (Logic) ground level. - Printer chassis ground. 1. DIR refers to the direction of signal flow as viewed from the printer. Word Length Start bit: Data bits: Stop bit: 1 bit 8 bits 1 bit or more Parity Odd, Even, or Non-Parity (see Table A-4) F-5
Serial Interface
Connector pin assignments and a description of respective interface
signals are shown in Table F-3.
Table F-3. Pins and signals
Pin No.
Signal name
Dir
Functional Description
1
Not used
—
Reserved.
2
REV (Reverse
OUT
Indicates printer is ready to receive
channel)
data or not. MARK level indicates
printer is not ready to receive data.
3
RXD
IN
Receives data (RS-232C level)
4
Not used
—
Reserved.
5
Signal GND
—
Signal (Logic) ground level.
6
Chassis GND
—
Printer chassis ground.
1. DIR refers to the direction of signal flow as viewed from the
printer.
Word Length
Start bit:
Data bits:
Stop bit:
Parity
1 bit
8 bits
1
bit or more
Odd, Even, or Non-Parity (see Table A-4)
F-5