Lexmark E450DN Service Manual - Page 138
Controller card connector pin values, Connector, Value, cableplugged, if different, Comments
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4512-630 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 Value cableplugged Value 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 Ground Less than 1 V dc Comments Smart chip Toner level sensor Operator panel Cooling fan LSU drive Front cover open switch Cover closed 1 0 V dc Cover open 2 5v 3 Ground J8 2, 4, 7 Ground LSU 10 5 V dc 1, 3, 5, 6, 8, 9 Signal J9 1, 2 24 V dc Reversing solenoid 2 Less than 1 V dc J10 1 Less than 5 V dc Narrow media sensor 2 5 V dc 3 Ground J11 1 Less than 5 V dc Exit sensor 2 5 V dc 3 Ground J13 1 5 V dc Thermistor 2 Ground 5-2 Service Manual