Table 1-11. Connector Pin Assignments And Signal Functions - Epson LQ-870 Service Manual

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Table 1-11. Connector Pin Assignments and Signal Functions (Cont.)
Signal Name
Pin
No.
14
/AUTOFEED-XT
15
16 GND
17 Chassis GND
18
GND
30
31
32
/ERROR
33 GND
34
35
36
NOTES: *
"Dir." indicates the direction of the signal flow as viewed from the printer.
0.2 p.s.
the DATA 1 through DATA 8 pins to the /STROBE signal.
Return Dir.
Pin No.
IN If LOW when the printer is initialized, the printer automatically
performs a line feed upon input of the CR code (auto LF).
Not used.
Ground for twisted pair grounding.
-- --
Chassis ground level of printer.
Not used.
Ground for twisted pair grounding.
16 IN Pulse input for printer initialization (width: 50 p.s, minimum,
active LOW).
OUT LOW indicates an error has occurred in the printer.
--
Ground for twisted pair grounding.
Not used.
OUT Always HIGH. (Pulled up to +5 V through 3.3K-ohm resistor.)
IN If LOW when the printer is initialized, DCl/DC3 control is
disabled.
1-15
Function