HP Officejet J5740 All-in-One Printer - Manual (Page 181)

Solution:
NOTE: This possible solution applies only in the countries/regions that receive
a 2-wire phone cord in the box with the HP All-in-One, including: Argentina,
Australia, Brazil, Canada, Chile, China, Colombia, Greece, India, Indonesia,
Ireland, Japan, Korea, Latin America, Malaysia, Mexico, Philippines, Poland,
Portugal, Russia, Saudi Arabia, Singapore, Spain, Taiwan, Thailand, USA,
Venezuela, and Vietnam.
To send a fax manually, the telephone must be connected directly to the port labeled
2-EXT on the HP All-in-One, as shown below.
1 Telephone wall jack
2 Use the phone cord supplied in the box with the HP All-in-One
3 Telephone
Cause: The Fax Speed setting might be set too fast.
Solution: Try setting the Fax Speed to Medium or Slow, and then resend the fax.
To set the fax speed from the control panel
1. Press Setup.
2. Press 5, and then press 7.
This selects Advanced Fax Setup and then selects Fax Speed.
3. Press to select one of the following settings, and then press OK.
Fax speed setting Fax speed
Fast v.34 (33600 baud)
Medium v.17 (14400 baud)
Slow v.29 (9600 baud)
Cause: The HP All-in-One is not detecting an original loaded in the document feeder
tray.
Fax troubleshooting 179