HP Photosmart Premium Fax All-in-One Printer - C309 Basics Guide - Page 62

Solution 12: If you use a PBX or ISDN converter, make sure you are using a port

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Troubleshooting and support Chapter 4 If this did not solve the issue, try the next solution. Solution 10: If you use a DSL service, make sure you have a DSL filter installed Solution: If you use a DSL service, make sure that you have a DSL filter connected or you will not be able to fax successfully. The DSL service sends out a digital signal on the phone line that can interfere with the product, preventing the product from sending and receiving faxes. The DSL filter removes the digital signal and allows the product to communicate properly with the phone line. To check if you already have a filter installed, listen to your phone line or dial tone. If you hear noise or static on the line, you probably do not have a DSL filter installed, or it is installed incorrectly. Obtain a DSL filter from your DSL provider. If you already have a DSL filter, make sure it is connected correctly. Cause: The product shares the same phone line with a DSL service and a DSL filter was not connected. If this did not solve the issue, try the next solution. Solution 11: If you use a DSL service, make sure the DSL modem is properly grounded Solution: If the DSL modem is not properly grounded, 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. NOTE: For information on turning your DSL modem off, contact your DSL provider for support. Completely remove power for at least 15 minutes, and then turn the DSL modem back on. Listen to the dial tone again. • If the dial tone sounds clear (no noise or static), try sending or receiving a fax. NOTE: You might notice static on the phone line again in the future. If the product stops sending and receiving faxes, repeat this process. • If the phone line is still noisy, contact your phone company. Cause: The product shares the same phone line with a DSL service and the DSL modem might not have been properly grounded. If this did not solve the issue, try the next solution. Solution 12: If you use a PBX or ISDN converter, make sure you are using a port designated for fax and phone use Solution: Make sure the product is connected to the port that is designated for fax and phone use. Also, make sure that the terminal adapter is set to the correct switch type for your country/ region, if possible. NOTE: Some ISDN systems allow you to configure the ports for specific phone equipment. For example, you might have assigned one port for telephone and Group 3 fax and another port for multiple purposes. If you have problems when connected to the fax/phone port of your ISDN converter, try using the port designated for multiple purposes; it might be labeled "multi-combi" or something similar. For more information on how to set up the product with a PBX phone system or ISDN line, see the printed documentation that came with the product. Cause: You were using either a PBX or an ISDN converter/terminal adapter. 60 Troubleshooting and support

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If this did not solve the issue, try the next solution.
Solution 10: If you use a DSL service, make sure you have a DSL filter installed
Solution:
If you use a DSL service, make sure that you have a DSL filter connected or you
will not be able to fax successfully. The DSL service sends out a digital signal on the phone line
that can interfere with the product, preventing the product from sending and receiving faxes.
The DSL filter removes the digital signal and allows the product to communicate properly with
the phone line.
To check if you already have a filter installed, listen to your phone line or dial tone. If you hear
noise or static on the line, you probably do not have a DSL filter installed, or it is installed
incorrectly. Obtain a DSL filter from your DSL provider. If you already have a DSL filter, make
sure it is connected correctly.
Cause:
The product shares the same phone line with a DSL service and a DSL filter was not
connected.
If this did not solve the issue, try the next solution.
Solution 11: If you use a DSL service, make sure the DSL modem is properly
grounded
Solution:
If the DSL modem is not properly grounded, 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.
NOTE:
For information on turning your DSL modem off, contact your DSL provider for
support.
Completely remove power for at least 15 minutes, and then turn the DSL modem back on.
Listen to the dial tone again.
•
If the dial tone sounds clear (no noise or static), try sending or receiving a fax.
NOTE:
You might notice static on the phone line again in the future. If the product
stops sending and receiving faxes, repeat this process.
•
If the phone line is still noisy, contact your phone company.
Cause:
The product shares the same phone line with a DSL service and the DSL modem
might not have been properly grounded.
If this did not solve the issue, try the next solution.
Solution 12: If you use a PBX or ISDN converter, make sure you are using a port
designated for fax and phone use
Solution:
Make sure the product is connected to the port that is designated for fax and phone
use. Also, make sure that the terminal adapter is set to the correct switch type for your country/
region, if possible.
NOTE:
Some ISDN systems allow you to configure the ports for specific phone equipment.
For example, you might have assigned one port for telephone and Group 3 fax and another
port for multiple purposes. If you have problems when connected to the fax/phone port of
your ISDN converter, try using the port designated for multiple purposes; it might be labeled
"multi-combi" or something similar.
For more information on how to set up the product with a PBX phone system or ISDN line, see
the printed documentation that came with the product.
Cause:
You were using either a PBX or an ISDN converter/terminal adapter.
Chapter 4
60
Troubleshooting and support
Troubleshooting and support