HP LaserJet MFP Analog Fax Accessory 300, Fax Manual

Page: 78 / 444

70 Chapter 6 Troubleshooting
ENWW
What type of phone line are you using?
●
Dedicated line: A standard fax/phone number assigned to
receive or send faxes.
● PBX system: A business-environment phone system. Standard
home phones and the fax accessory use an analog phone signal.
Some PBX systems are digital and may not be compatible with
the fax accessory. You need to have access to a standard analog
phone line to be able to send and receive faxes.
●
Roll-over lines: A phone system feature where a new call “rolls
over” to the next available line when the first incoming line is busy.
Try attaching the fax accessory to the first incoming phone line.
The fax accessory will answer the phone after it rings the number
of times set in the rings-to-answer setting. (See “Setting
rings-to-answer” on page 54.)
Note
Roll-over lines can cause problems with the fax accessory’s ability to
receive faxes. Using roll-over lines with this product is not
recommended.
Are you using a phone-line splitter?
Parallel or “T” phone-line splitters should not be used with the fax
accessory because they can degrade the quality of the phone signal.
Are you using a surge-protection device?
A surge-protection device can be used between the wall jack and the
fax accessory to protect the fax accessory against electrical power
passed through the phone lines. These devices can cause some fax
communication problems by degrading the quality of the phone
signal. If you are having problems sending or receiving faxes and are
using one of these devices, connect the fax accessory directly to the
phone jack on the wall to determine whether the problem is with the
surge-protection device.
Are you using a phone company
voice-messaging service or an
answering machine?
If the rings-to-answer setting for the messaging service is lower than
the rings-to-answer setting for the fax accessory, the messaging
service answers the call, and the fax accessory is not able to receive
faxes. If the rings-to-answer setting for the fax accessory is lower than
that of the messaging service, the fax accessory answers all calls,
and no calls are routed to the messaging service.