Question about Fax Machines

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Hp Officejet 4300 All-in-One series

Unable to unput numbers when paying bills on line. Will get to a certain amount of numbers but then will no allow me to input anymore to complete the transaction. Seems like the screen is full.

2nd problem. is that if someone calls me I can hardly hear them on the other end. I'm not old so its not my hearing. Hope you can help. I have been able to adjust ringtone volume but thats it.
This machine is only 3 weeks old

Posted by on

  • gbokla Aug 11, 2008

    ok I think I can fix the first problem with speed dial, but the 2nd issues is very complicate.....well for me at least. The link to the userguide doesnt tell me what page to find the problem on. I have a copy of the user guide with me what page is it on for the answer to question 2.
    I am not using the phone/fax as an answering machine....I just want to use the phone and send a fax when necessary.
    thanks mr fix it....appreciate if you can make it a little clearer for the dummies.


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Hi Gail - the problem is most likely not an adjustment on your machine. The only other volume adjustment is the phone line monitor volume. Section 3, page 20 under adjust the volume. This is just for the volume as you dial for a fax. You never know though but I doubt it. Do your other phones work ok? Any chance you have a long enough phone cord to reach from the fax machine to another phone jack? Or do you have another phone cord to try instead of the one your using? Make sure no cords have slipped out a little or about to come unplugged. Also try a different phone if possible instead of the one your using by your fax machine. Let me know what happens please. Thanks.


Posted on Aug 11, 2008

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Dear Sir:

As you said that this product is only 3 weeks old there is nothing to worry about as this is in warranty.

As far as the first issue try to input the number after a pause as this is a fax machine. User manual for the same.

For the second issue please check the phone connection please Click here to check the phone line connections

or click
HP Support

if the Above solutions doesnt work please contact the HP support call 800-HP invent

Please feel free to get back to me If you need any further assistance.

Posted on Aug 10, 2008

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1 Answer

It shows erro 124-315

The serial no., product no., and billing count are stored at three locations; the MCU NVM PWB (IOT), the SEEP ROM (SYS1) on the Backplane (BP) PWB, and the ESS NVM PWB (SYS2). This procedure allows the data in all three locations to be synchronized in case of replacement of one of the PWBs, or due to data corruption associated with one of the following faults:
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    124-325 (1 Billing Counter Mismatch; Unable to recover Billing Counter during recovery)
    124-312 (Product No. Mismatch)
    124-313 (Serial No. Mismatch)
    124-310 (Product No. Failure: Not initialized)
  • 124-311 (Serial No. Failure: Not initialized)


  1. Enter UI Diagnostic mode ( Accessing UI Diagnostics).
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    Select Machine ID/Billing Data Settings.
    Select a PWB with the correct data.
    Select Start.
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Hi my hp 640 will not answer a fax call, but will answer only if we pick up the hand set.

Issue When the all-in-one product is sharing a phone line with voice calls, some calls are interrupted by fax tones. Follow the steps below to solve the problem.Step one: Check the Rings to Answer setting If Auto Answer is enabled, the HP fax product will answer the phone line when the number of rings reaches the number of rings specified in the Rings-to-Answer setting. When voice calls will be received on the same phone line as faxes, set to rings-to-answer to 6. If you do not want the fax to answer automatically, either turn off Auto Answer from the front panel and receive faxes manually (this may result in lost faxes) or subscribe to a distinctive ring service from the phone company (if available). Refer to the Answering faxes manually section below to learn how to answer faxes manually or refer to the Using distinctive ringing section below for more information about using distinctive ringing. The Rings-to-answer setting for the HP Officejet 500 and 600 series products can only be checked or set using the all-in-one software on the computer. The Rings-to-answer setting for the HP Officejet 500 and 600 series products can only be checked or set using the all-in-one software on the computer. Follow the steps below to check or change the setting for all models except the HP Officejet 500 and 600 series:
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  2. Press Enter (or Start or OK ).
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1. Reattempt the fax transmission at a different time when telephone line conditions have improved.
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Plug a regular phone into the wall jack and listen for a dial tone also make sure the phone cord is plugged into the LINE port of the fax not the phone icon port.

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Verify that the sender has the correct fax number.

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Test the wall jack with a regular phone.

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