Oki B4545 MFP - Manual (Page 23)

Installation
23
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Clip the connector of the flat cable (E) of the duplex unit in the connector (D) located
at the bottom left hand side of the terminal.
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Insert the two plastic clips (B) in the two slots (A) provided for this purpose.
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Hold the module in its housing, tip the access door to the two blue-colored locking
clips backwards.
D
E