HP Photosmart C4344 All-in-One Printer - Manual (Page 183)

If this did not solve the issue, try the next solution.
Solution 2: Lower the fax resolution
Solution: For faster transmission, use Standard resolution. This setting provides
the fastest possible transmission with the lowest quality of fax. The default resolution
is Fine, which can take longer to send.
For more information, see:
“Change the fax resolution” on page 23
Cause: The document contained a lot of graphics or had very fine detail.
If this did not solve the issue, try the next solution.
Solution 3: Check the phone line for noise
Solution: 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 the failure was
due to noise on the phone line, contact the sender to have them resend the fax. The
quality might be better when you try again. If the problem persists, turn Error
Correction Mode (ECM) off and contact your telephone company.
For more information, see:
“Send a fax in Error Correction Mode” on page 82
Cause: The phone line connection was noisy. Phone lines with poor sound quality
(noise) can cause faxing problems.
If this did not solve the issue, try the next solution.
Solution 4: Check the receiving fax machine for problems
Solution: Try calling the fax number from a telephone and listen for fax tones. If
you cannot hear fax tones, the receiving fax might not be turned on or connected, or
a voice mail service could be interfering with the recipient's phone line. You can also
ask the recipient to check the receiving fax machine for any problems.
Cause: The receiving fax machine was having problems.
Solution 5: Increase the fax speed
Solution: Make sure the Fax Speed option is set to Fast (33600) or Medium
(14400).
For more information, see:
“Set the fax speed” on page 18
Cause: The Fax Speed option was set to a slow transmission speed.
Chapter 14
180 Troubleshooting
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