Controller Card Connector Pin Values - Lexmark E250D - E B/W Laser Printer Service Manual

4512-220, -230

Controller card connector pin values

Note: See the wiring diagram at back of book.
These values were measured with all connections made (plugged) or with only one connector at a time
unplugged to expose the pins. Always disconnect and connect with the printer power off. Otherwise, the values
below may not match.
Connector Pin #
J1 1
2
J2 1
2
3
J3 1, 3, 5
2
4, 7
6
J4 1
2
J5 1, 3
2
J6 1, 2
3
1
2
3
J8 2, 4, 7
10
1, 3, 5, 6, 8, 9
J9 1, 2
2
J10 1
2
3
J11 1
2
3
J13 1
2
5-2
Lexmark™ E250d and E250dn
Value Value
cableplugged cable unplugged
(if different)
Signal
Ground
Less than 5 V dc
Ground
Signal
Signal
5 V dc
Ground
3.3 V dc
Ground
24 V dc
Signal
Ground
5 V dc Less than 1 V dc
Ground
0 V dc
5v
Ground
Ground
5 V dc
Signal
24 V dc
Less than 1 V dc
Less than 5 V dc
5 V dc
Ground
Less than 5 V dc
5 V dc
Ground
5 V dc
Ground
Comments
Smart chip
Toner level sensor
Operator panel
Cooling fan
LSU drive
Front cover open switch
Cover closed
Cover open
LSU
Reversing solenoid
Narrow media sensor
Exit sensor
Thermistor