What interface cables are compatible with the HL-3450CN printer?
The interface cable is not a standard accessory and must be purchased separately for the interface you intend to use, which can be Parallel, USB, or Network. Most existing parallel cables support bi-directional communication, but some might have an incompatible pin assignment or may not be IEEE 1284 compliant. (Page 1)
From the official Brother HL-3450CN Color Laser Printer manual, page 1
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