HP OfficeJet Pro 8730 User Guide - Page 141

Error Correction Mode, converter/terminal adapter

Page 141 highlights

● Connect one end of the phone cord to your telephone wall jack, then connect the other end to the port labeled 1-LINE on the back of the printer. 1 Telephone wall jack 2 Connect the phone cord to the port labelled 1-LINE on the back of the printer. ● Try connecting a working phone and phone cord to the telephone wall jack that you are using for the printer and check for a dial tone. If you do not hear a dial tone, call your local telephone company for service. ● Other equipment, which uses the same phone line as the printer, might be in use. For example, you cannot use the printer for faxing if an extension phone is off the hook, or if you are using a computer dial-up modem to send an email or access the Internet. ● Check to see if another process has caused an error. Check the display or your computer for an error message providing information about the problem and how to solve it. If there is an error, the printer cannot send or receive a fax until the error condition is resolved. ● The phone line connection might be noisy. Phone lines with poor sound quality (noise) can cause faxing problems. Check the sound quality of the phone line by plugging a phone into the telephone wall jack and listening for static or other noise. If you hear noise, turn Error Correction Mode (ECM) off and try faxing again. If the problem persists, contact your telephone company. ● If you are using a digital subscriber line (DSL) service, make sure that you have a DSL filter connected or you cannot fax successfully. ● Make sure the printer is not connected to a telephone wall jack that is set up for digital phones. To check if your phone line is digital, connect a regular analog phone to the line and listen for a dial tone. If you do not hear a normal sounding dial tone, it might be a phone line set up for digital phones. ● If you are using either a private branch exchange (PBX) or an integrated services digital network (ISDN) converter/terminal adapter, make sure the printer is connected to the correct port and the terminal adapter is set to the correct switch type for your country/region, if possible. ● If the printer shares the same phone line with a DSL service, the DSL modem might not be grounded correctly. If the DSL modem is not grounded correctly, it can create noise on the phone line. Phone lines with poor sound quality (noise) can cause faxing problems. You can check the sound quality of the phone line by plugging a phone into the telephone wall jack and listening for static or other noise. If you hear noise, turn off your DSL modem and completely remove power for at least 15 minutes. Turn the DSL modem back on and listen to the dial tone again. NOTE: You might notice static on the phone line again in the future. If the printer stops sending and receiving faxes, repeat this process. ENWW Fax issues 131

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Connect one end of the phone cord to your telephone wall jack, then connect the other end to the port
labeled 1-LINE on the back of the printer.
1
Telephone wall jack
2
Connect the phone cord to the port labelled 1-LINE on the back of the printer.
Try connecting a working phone and phone cord to the telephone wall jack that you are using for the
printer and check for a dial tone. If you do not hear a dial tone, call your local telephone company for
service.
Other equipment, which uses the same phone line as the printer, might be in use. For example, you
cannot use the printer for faxing if an extension phone is
off
the hook, or if you are using a computer
dial-up modem to send an email or access the Internet.
Check to see if another process has caused an error. Check the display or your computer for an error
message providing information about the problem and how to solve it. If there is an error, the printer
cannot send or receive a fax until the error condition is resolved.
The phone line connection might be noisy. Phone lines with poor sound quality (noise) can cause faxing
problems. Check the sound quality of the phone line by plugging a phone into the telephone wall jack
and listening for static or other noise. If you hear noise, turn
Error Correction Mode
(ECM)
off
and try
faxing again. If the problem persists, contact your telephone company.
If you are using a digital subscriber line (DSL) service, make sure that you have a DSL
filter
connected or
you cannot fax successfully.
Make sure the printer is not connected to a telephone wall jack that is set up for digital phones. To check
if your phone line is digital, connect a regular analog phone to the line and listen for a dial tone. If you do
not hear a normal sounding dial tone, it might be a phone line set up for digital phones.
If you are using either a private branch exchange (PBX) or an integrated services digital network (ISDN)
converter/terminal adapter, make sure the printer is connected to the correct port and the terminal
adapter is set to the correct switch type for your country/region, if possible.
If the printer shares the same phone line with a DSL service, the DSL modem might not be grounded
correctly. If the DSL modem is not grounded correctly, it can create noise on the phone line. Phone lines
with poor sound quality (noise) can cause faxing problems. You can check the sound quality of the
phone line by plugging a phone into the telephone wall jack and listening for static or other noise. If you
hear noise, turn
off
your DSL modem and completely remove power for at least 15 minutes. Turn the
DSL modem back on and listen to the dial tone again.
NOTE:
You might notice static on the phone line again in the future. If the printer stops sending and
receiving faxes, repeat this process.
ENWW
Fax issues
131