HP 1240 manual Such as a PC modem or an answering machine. For more

troubleshooting

chapter 8

problem	possible cause and solution
I have difficulties	• Make sure you have correctly connected the HP Fax to the
when sending faxes	telephone wall jack, and correctly connected any additional
and when receiving	equipment and services that share the phone line with your
faxes.	HP Fax.
(continued)	Use the 1-LINE port on the back of the HP Fax to connect to the
	wall jack, and use the 2-EXT port to connect any other equipment,
	such as a PC modem or an answering machine. For more
	information and connection diagrams, see fax setup on page 75.
	• Using a telephone line splitter can cause faxing problems. (A
	splitter is two-cord connector that plugs into a wall jack.) Try
	removing the splitter and connecting the HP Fax directly to the
	telephone wall jack.
	• Check that the telephone wall jack has a working telephone line by
	plugging in a phone and checking for a dial tone.
	• Telephone lines with poor sound quality (noise) can cause faxing
	problems. Check the sound quality of the telephone line by
	plugging a phone into the wall jack and listening for static or other
	noise. If you hear noise, turn off the Error Correction Mode (ECM)
	feature on your HP Fax and try faxing again. For information, see
	use error correction mode on page 46. Also contact your phone
	company to report the noise problem on your line.
	• Other equipment using the same telephone line as the HP Fax
	might be in use. For example, you cannot use your HP Fax for
	faxing if an extension phone is off-hook, or if you are using your
	PC modem to e-mail or access the Internet.
	• If you are using a digital subscriber line (DSL), make sure that you
	have a DSL filter connected or you will not be able to fax
	successfully. Obtain a DSL filter from your DSL provider. The DSL
	filter removes the digital signal that blocks your HP Fax from
	communicating properly with the telephone line.
	For information on how to connect the DSL filter, see faxing from a
	DSL line on page 76.
	• Check for error messages on the front panel display of your
	HP Fax. Until a product error condition is resolved, you will not be
	able to send or receive faxes.
	• If you are using either a PBX or an ISDN converter, make sure the
	HP Fax is connected to the port that is designated for fax and
	phone use.
	Note that some ISDN systems allow you to configure the ports for
	specific phone equipment—for example, you might have assigned
	one for telephone and Group 3 fax and another for multiple
	purposes. If you continue to have problems when connected to the
	fax/phone port, try using the port designated for multiple purposes
	(might be labeled “multi-combi” or something similar).

106 hp fax 1240 series