I am able to receive and print incoming faxes. Sending out, I get confirmation that it went out but its never delivered.

To change fax confirmation
1. Press Setup.
2. Press Print Report, and then Fax Confirmation.
3. Press the right arrow button to select one of the following, and then press OK.

Off - Does not print a fax confirmation report when you send and receive
faxes successfully. This is the default setting.

On Fax Send - Prints a fax confirmation report for every fax you send.
On Fax Receive - Prints a fax confirmation report for every fax you receive.
Send & Receive - Prints a fax confirmation report for every fax you send and receive.

If you need printed confirmation that your faxes were successfully sent, follow these instructions to enable fax confirmation before sending any faxes. Select either On Fax Send or Send & Receive.

The default fax confirmation setting is Off. This means that the HP All-in-One will not print a confirmation report for each fax sent or received. A confirmation message indicating whether a fax was successfully sent appears briefly on the display after each transaction.

To enable fax confirmation from the control panel

1. Press Setup.

2. Press 2, and then press 3.

This selects Print Report and then selects Fax Confirmation.

3. Press to select one of the following, and then press OK.

Off Does not print a fax confirmation report when you send and

receive faxes successfully. This is the default setting.

On Fax Send Prints a fax confirmation report for every fax you send.

Fax

On Fax Receive Prints a fax confirmation report for every fax you receive.

Send & Receive Prints a fax confirmation report for every fax you send and

receive.

1. Print a configuration report according to the following instructions:
2. Press MENU/ENTER .
3. Press the < or the > button to select Reports , and then press MENU/ENTER .
4. Press the < or the > button to select Config report , and then press MENU/ ENTER .
5. select the xmit config and choose .

It's gone forever, once your machine received a EOT (end of transmission signal), your fax machine thinks it was received OK and clears it from memory.

This is an excerpt of the User's Guide for your machine. You can download from here:
http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&product=1138342&


Print fax confirmation reports
If you need printed confirmation that your faxes were successfully sent, follow these instructions to enable fax confirmation before sending any faxes. Select either On Fax Send or Send & Receive.
The default fax confirmation setting is Off. This means that the HP All-in-One will not print a confirmation report for each fax sent or received. A confirmation message indicating whether a fax was successfully sent appears briefly on the display after
each transaction.
To enable fax confirmation from the control panel
1. Press Setup.
2. Press 2, and then press 1.
This selects Print Report and then selects Fax Confirmation.
3. Press to select one of the following, and then press OK.

Off Does not print a fax confirmation report when you send and
receive faxes successfully. This is the default setting.
On Fax Send Prints a fax confirmation report for every fax you send.
On Fax Receive Prints a fax confirmation report for every fax you receive.
Send & Receive Prints a fax confirmation report for every fax you send and receive.
User Guide 65
Fax
Tip If you choose On Fax Send or Send & Receive, and scan your fax to send from memory, you can include an image of the first page of the fax on the Fax Sent Confirmation report. Press Setup, press 2, and then press 2 again. Select On from the Image on Fax Send Report menu.

To print a report:

1. Press the [Menu] button on the Control Panel, until Reports is displayed on the top line of the Display Screen. The Phone Book menu item will be displayed on the bottom line.
   
   
   
   
2. Press the right or left arrow button to scroll until the report or list you want to print is displayed on the bottom line.
   • Phone Book: Phonebook list
   • Sent Report: Sent fax report
   • RCV Report: Received fax report
   • System Data: System data list
   • Scheduled Jobs: Scheduled job information
   • MSG Confirm: Message confirmation
   • Junk Fax List: Junk fax number list
3. Press [Enter] to print the selected information.

Your machine can print reports containing useful information. The following reports are available:

• Phonebook List: This list shows all of the numbers currently stored in the machine's memory as Speed Dial and Group Dial numbers. You can print this phonebook list using the [Phonebook] button.
• Sent Fax Repor: This report shows information of the faxes you recently sent.
• Received Fax Report: This report shows information of the faxes you recently received.
• System Data List: This list shows the status of the user-selectable options. You may print this list to confirm your changes after changing any settings.
• Scheduled Job Information: This list shows the document currently stored for Delayed faxes or Toll Save faxes. The list shows the starting time and type of operation.
• Message Confirmation: This report shows the fax number, the number of pages, the elapsed time of the job, the communication mode, and the communication results. You can set up your machine to automatically print the message confirmation report after each fax job.
• Junk Fax Number List: This list shows up to 10 fax numbers specified as the junk fax numbers by using the Junk Fax Setup menu. When the Junk Fax Barrier feature is turned on, incoming faxes from those numbers will be blocked. This feature recognizes the last 6 digits of the fax number set as a remote fax machine’s ID.
• Multi-Communication Report: This report is printed automatically after sending documents from more than one location.
• Power Failure Report: This report is printed out automatically when power is restored after a power failure, if any data loss occurs due to the power failure.

NOTE: The lists you have set to automatically print out will not print out when there is no paper loaded or a paper jam has occurred.

The secure receive mode is on. That's why the fax all the incoming fax went in to the memory.

To turn the secure receive mode off..

1.Press menu until ADVANCE FAX appears
2.Press the scroll button (< or > button) untikl the secure receive appears then press enter.
3. Press the scroll button again until OFF appears then press ENTER.

Its my pleasure to help..Good luck.. (", )

Incoming faxes automatically go into memory. We can't print them out. Would like incoming faxes to print out as they used to. have tried the on off button but it didn't fix the problem

You can get the manual here if you do not have one - LINK.

Here is an exert form the manual on this:
Print fax confirmation reports
If you need printed confirmation that your faxes were successfully sent, follow these
instructions to enable fax confirmation before sending any faxes. Select either On
Fax Send or Send & Receive.
1. Press Setup.
2. Press 2, and then press 1.
This selects Print Report and then selects Fax Confirmation.
3. Press to select one of the following, and then press OK.
Off Does not print a fax confirmation report when you send and
receive faxes successfully. This is the default setting.
On Fax Send Prints a fax confirmation report for every fax you send.
On Fax Receive Prints a fax confirmation report for every fax you receive.
Send &
Receive
Prints a fax confirmation report for every fax you send and
receive.

Haven't fixed the problem and was trying your site out to see if it delivered gratis.