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HP LaserJet 1320 Teardown

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Duplexer PCB

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Disconnect the duplexer cable from the control board.

Disconnect the duplexer solenoid cable from the duplexer PCB.

Remove one screw from the PCB and remove the PCB from the printer.

This tiny board contains 2 NPN transistors marked C2120 and C1815, which are used to drive the duplexer solenoid.

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