Question about Canon imageCLASS MF4150 All-In-One Laser Printer

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Data processing light keeps flashing in fax mode

Canon mf 4150. When I push the fax button and then push hook to get a dial tone I get a processing data light flashing. It seems a project is in the que but will not send it or clear it. The reset button does not solve the problem or a 15 min. power off reset.

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Unplug your USB cable and the fax should start working. If this fixes the issue, it could be a problem with your USB cable or hardware.

Posted on Mar 25, 2009

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I have a separate fax line for my Canon MX310. It goes into fax mode but noting happens. I also cannot receive faxes.


The only reason to call the phone company is if you're not getting a dial tone on that line. Otherwise, have you shut down the printer and tried to reset it to factory defaults. To do that, follow the instructions below:
  • 1 Switch the Canon MX310 off using the "Power" button, then push the "Stop/Reset" button on the control panel. Hold the button down for about five seconds.
  • 2 Push the "Power" button while holding "Stop/Reset." Hold down both buttons for five seconds.
  • 3 Release "Stop/Reset" while holding down the "Power" button.
  • 4 Push "Stop/Reset" twice while continuing to hold the "Power" button. Release the "Power" button. The power light will turn green.
  • 5 Once the light is steady green, push "Stop/Reset." Wait about three seconds and push it again. Wait three more seconds and push it one final time, for a total of three times. The power light will turn orange.
  • 6 Push the "Power" button, then lift the MX310 cover open.
  • 7 Remove both ink cartridges and wait 10 seconds. Replace the cartridges and close the MX310 cover. Wait 30 seconds.
  • 8 Push the "Power" button. Wait a few seconds to allow the printer to fully power down, then switch the Canon MX310 back on using the "Power" button.
  • Good Luck Mark

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2 Answers

Fax problem


I want to make sure I understand this completely. You get no dial tone from the fax machine when hooked up to VOIP. In the past, was there an audible dial tone from the fax, or did it just dial silently and give you an error if there was no tone? When you said you got a dial tone by connecting a phone to the ext phone port of "the machine" did you mean the fax machine? If you get a dial tone by running a phone through the fax machine, then the line is good. I have used a fax machine over Sunrocket before they went defunct, which used the same technology base as Vonage - so it should work. If you used to get an audible dial tone when using the fax, and no longer do, and you are geting a dial tone on a regular phone that is connected to the ext. port of the fax machine, then the problem has to be in the fax machine itself, not the VOIP. If you can verify that, we can go from there.

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I'm trying to send a fax on my Canon Pixma MX340 . It rings when I dial the number, but just keeps coming back and telling me the line is busy. That shouldn't be happening at this hour. Is there...


Thank you for using fixya.........

The receiver is not receiving your fax, so the problem is coming.......

first you have to inform the receiver to receive the fax........

then try again...........

thank you......

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My canon mf 4150 would not fax. what could be the


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Canon MF4350d wont fax.


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When I hit hook to send a fax I hear a click but I get no dial tone and the same on receiving a fax MP830


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How to use the Fax option on a Canon imageRunner 2800.


1)firstly place your text onto the platen glass.
2)press the fax mode
3)dial the number by pressing on the control panel keys.
4)listen there is any dial tone.
5)if no dial tone ,fix the fax cable to the machine .
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1 Answer

One of my agents unplugged the fax machine (Canon D880) and now it wont work at all. I printed a report of the settings and it looks fine but nothing works


Make sure the phone line is plugged into the correct input "Line" not "Phone" . Does the fax have an "On Hook" button that allows you to hear the dial tone? Have you tried a regular phone on the line to verify that there is a dial tone?

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Put in number press the green button to send the fax and it comes up with Memory Set Doc flashing but wont send the fax.


try sending manually


to do so


load a document---->press hook----->dial the number----->when you hear a fax tone press start.

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