Information
1.4.3 CONTROLLER AND ENGINE BOARD CONNECTOR PIN
VALUES
The connections listed below are located on the controller board or the engine board. The
comments column lists which board the connection appears on.
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 No.
Value cable
plugged
Value cable
unplugged (if
different)
Connection
J8
1, 3, 5, 7, 9,
11, 14
Signals
Modem <-> Controller
Board
10 5 V dc
12, 13 3.3 V dc
2, 4, 6, 8 Ground
J16
10, 12, 14 +5V ISP <-> Controller Board
10, 12, 14 Ground
J7
1, 4 ,7 +5V Cave light <-> Controller
board
1 Ground
J99
4 +3.3V Controller cooling fan <->
Controller board
3 Ground
J4
1 Ground Cartridge <-> Engine
Board
(The front access door
must be closed.)
1 1.7 V dc
2 3.3 V dc
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