HP LaserJet M4345 Service Manual - Page 456

Solve fax problems More extensive fax troubleshooting information is available in the Fax Support Guide. For additional help troubleshooting the Send Fax driver, see the Send Fax Driver User Guide. Solve sending problems Faxes quit during sending. Cause The fax machine to which you are sending might be malfunctioning. Your telephone line might not be working, or the line might be experiencing interference. Solution Call the recipient to make sure that the receiving fax machine is turned on and ready to receive faxes, or try sending to another fax machine. Disconnect the fax cable from the telephone jack, and then connect a telephone. Make a phone call to ensure that the telephone line is working. Try using a lower baud rate by adjusting the Maximum Baud Rate setting in the Administration menu. See Initial Setup menu on page 60. The device fax is receiving faxes but is not sending them. Cause Solution If the device is on a PBX system, the PBX system might be generating a dial tone that the fax cannot detect. Disable the detect dial tone setting. See the fax guide for information about changing the setting. There might be a poor telephone connection. Resend the fax later. The fax machine to which you are sending might be malfunctioning. Call the recipient to make sure that the receiving fax machine is turned on and ready to receive faxes, or try sending to another fax machine. Your telephone line might not be working. Disconnect the fax cable from the telephone jack, and then connect a telephone. Make a phone call to ensure that the telephone line is working. Outgoing fax calls keep dialing. Cause The fax automatically redials a fax number if either the Redial on Busy feature or the Redial on No Answer feature is enabled. Solution Disable the Redial on Busy and Redial on No Answer features. See the fax guide for information about changing the settings. 438 Chapter 6 Problem solving ENWW