HP Officejet J3680 All-in-One Printer - Manual (Page 89)

NOTE: Since your computer modem shares the phone line with the device, you
cannot use both your modem and the device simultaneously. For example, you cannot
use the device for faxing while you are using your computer modem to send an e-mail
or access the Internet.
• Shared voice/fax with computer dial-up modem
• Shared voice/fax with computer DSL/ADSL modem
Shared voice/fax with computer dial-up modem
If you use your phone line for both fax and telephone calls, use these instructions to set
up your fax.
There are two different ways to set up the device with your computer based on the number
of phone ports on your computer. Before you begin, check your computer to see if it has
one or two phone ports.
• If your computer has only one phone port, you will need to purchase a parallel splitter
(also called a coupler), as shown below. (A parallel splitter has one RJ-11 port on the
front and two RJ-11 ports on the back. Do not use a two-line phone splitter, a serial
splitter, or a parallel splitter which has two RJ-11 ports on the front and a plug on the
back.)
Figure 7-7 Example of a parallel splitter
• If your computer has one phone port, set up the device as described below.
Figure 7-8 Back view of the device
1 Telephone wall jack
2 Phone cord provided with the device plugged into the 1-LINE port on the
back of the device
Set up faxing for the device 85