HP Officejet Pro 276dw Multifunction Printer series - Manual (Page 217)

To set up the printer on the same phone line as a computer with two phone ports
Back view of the printer
1 Telephone wall jack
2 Use the phone cord supplied in the box with the printer to connect to the
1-LINE port.
3 Parallel splitter
4 Computer with modem
5 Telephone
1. Remove the white plug from the port labeled 2-EXT on the back of the printer.
2. Find the phone cord that connects from the back of your computer (your computer dial-up
modem) to a telephone wall jack. Disconnect the cord from the telephone wall jack and plug
it into the port labeled 2-EXT on the back of the printer.
3. Connect a phone to the "OUT" port on the back of your computer dial-up modem.
4. Using the phone cord supplied in the box with the printer, connect one end to your
telephone wall jack, then connect the other end to the port labeled 1-LINE on the back of
the printer.
NOTE: You might need to connect the supplied phone cord to the adapter provided for
your country/region.
If you do not use the supplied cord to connect from the telephone wall jack to the
printer, you might not be able to fax successfully. This special phone cord is different
from the phone cords you might already have in your home or office.
5. If your modem software is set to receive faxes to your computer automatically, turn off that
setting.
NOTE: If you do not turn off the automatic fax reception setting in your modem
software, the printer cannot receive faxes.
Set up faxing (parallel phone systems) 213