Epson LQ-2550 Technical Manual page 291

Signal
Pin No.
HI o
17
o
2
o
3
c l o
4
o
16
o
18
H21 o
1
o
o
10
o
9
o
8
6 C3 o
15 o
11 H 8 o
o
13
7 C4 o
14
T M S N
12 —
Pin No. Signal
PGPL o
+ 3 5 o
2
+
3
12
0
4 PGSN
5 —
1/0
Pin No. Signal
CRHM
2 GND —
CRLP
3
Pin No. I Signal I 1/0 I
I
+ 3 5
2
GH —
Table A-27. CN1 1 Pin Assignments
Common (+35 VDC)
line
Common line (+35 VDC)
Common line (+35 VDC)
solenoid #8
Common line (+35 VDC)
I
Analog ground
Table A-28. CN12 Pin Assignments
PT solenoid ON/OFF
, +35 VDC
+ 1 2 VDC
I Paper thickness signal
Analog ground
Table A-29. CN13 Pin Assignments
I
CR home position signal
Ground
o + 5 VDC
Table A-30. CN14
+35
o
Ground (for drive circuits)
Description
Description
Description
Pin Assignments
Description
A - 4 6