Question about Canon MX300 Office All-In-One Printer

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Mx300 fax / printer

How does one stop mx300 fax from interupting phone

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  • marineman May 22, 2008

    Tried EVERY combination of settings, still no change.

    does this about 25% of calls.

    Printer is set up as described in on-line manual.


  • Sandals30 Jun 05, 2008

    Me too. I have the same issue. If someone calls and I answer it and the pritner is on, I can be on the phone the phone for about a minute and then the fax kicks in and drops my call. I have tried the various settings in the manual and have triple checked that the settings & wires are all set up correctly. It doesn't happen to every call though.

    Very frustrating!

  • Anonymous Jul 28, 2008

    On - screen manual: user's guide

  • Anonymous Jul 28, 2008


  • Anonymous Sep 22, 2008


  • Anonymous Jan 19, 2009

    I have the same problem. It happens on maybe 10% of my calls. The solutions presented basically say "try changing this or that" but that's not too definitive for finding a a solution especially when the problem is relatively infrequent. Anyone really know how to fix this?



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I found this on Canon's website.

Remote RX If the fax interrupts telephone conversations after the initial sixty seconds that it uses to monitor for fax signals, change the Remote RX ID number. The default Remote RX ID number is 25. See the folloing steps to change the Remote RX ID number.

  1. Press the <FAX> button to enter the Fax menu.

  2. Press the <Menu> button.

  3. Press the left or right arrow to select [RX SETTINGS], then press <OK>.

  4. Press the left or right arrow to select [REMOTE RX], then press <OK>.

  5. Press the left or right arrow to select [ON] or [OFF], then press <OK>.

    Note: The default setting is [ON].
    1. If [Remote RX] is set to [ON], a window will appear displaying the current REMOTE RX ID.
    2. Use the left or right arrow to select the preferred ID value (from 00 through 99).
    3. Press <OK> to set the ID.

  6. Press the <Fax> button to return to Fax standby mode.

If the fax continues to interrupt telephone conversations after the Remote RX ID number was changed, turn off Remote RX. The default setting from the factory is ON. See the folloing steps to turn off Remote RX.
1. Press the <Menu> button until [FAX SETTINGS] is displayed.
2. Use the [ mx300 fax / printer - left.gif] or [ right.gif] to select [RX SETTINGS] then press <OK>.
3. Use the [ left.gif]mx300 fax / printer - right.gifg src="" alt="right.gif" class="h_mi" />] to select [REMOTE RX] then press <OK>.mx300 fax / printer - left.gif 4. Use the [ left.gif] or [ right.gif] to select [OFF] then press <OK>.
5. Press <Stop/Reset>.

Posted on Jun 05, 2008


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