I have an HP OfficeJet J4500 all-in-one printer, currently connected via USB to a computer, but I'd like to connect it directly to the router's ethernet instead in order to print from other computers on the network.
The printer only has a RJ11 ("fax") socket. I know there are RJ11 to RJ45 adapters. Can I use one to connect the printer to my router?
31 Answer
An RJ11 is a telephone connector. When used in a printer this is usually for faxing.
In either case, this is an analog connector which works very differently than an RJ45 connector. RJ11 has only 2 wires inside the cable, one for data/audio and the other for ring. An RJ45 connector has 8 wires inside the cable of which 4 are used for sure (higher speeds require the other 4 wires).
This is a digital cable however and works very differently. As such it is not possible in any way to use the fax port as a network port.
