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MP Navigator EX will not open

dustaymm
Apprentice

Recently switched from Windows XP to Windows 7 and have a PIXMA MX-870 multifunctional printer.  When I try to open the solutions menu I get an error message " Cannot start MP Navigator EX   check 1. Supported model is listed MX870, MX340, MX350 Canoscan 9000F     2. MP Driver/scanner driver is installed      3. Your product model is connected to PC properly and power is on     4.  Reconnect the USB cable when connected with  

 

My printer is online and I can print, but cannot scan from the solutions menu because get Cannot start MP Navigator EX message

 

I checked the forum references to MP Navigator EX stopped.  Checked the Twain_32 folder.  Only had one file (wiatwain.ds) in the folder there was no Pixma MX 870 file or any other files in that folder. 

 

Have reloaded files from original Canon software disk and have updated Canon file drivers, etc.  but get the same message .

 

Where do I get the Pixma MX 870 file to put in the Twain_32 folder and should that fix my problem of not being able to open MP Navigator EX? 

 

Appreciate any guidence about how to fix this problem from the forum.

1 ACCEPTED SOLUTION

Hi johanb,

 

Reinstalling will resolve this issue.  To do this, please follow these steps:

 

 1.  Press the Windows key on your keyboard and the letter R, then let both go.

 

 2.  In the Run window, please type CONTROL PANEL and click OK.

 

 3.  Click on View devices and printers (or Devices and printers, depending on your view).

 

 4.  Right click the Canon MX340 series and left click on Remove device.  Repeat until all MX340's are removed.

 

 5.  In the upper left corner, click on Control Panel (or the Back button).

 

 6.  In Control Panel, click on Uninstall a program (or Programs and features, depending on your view).

 

 7.  Click once on "Canon MX340 series MP Driver" and then click Uninstall at the top.

 

 8.  Follow the on screen prompts to uninstall the driver.  When you click Complete,  the driver is uninstalled.

 

 9.  Click once on the "MP Navigator EX" and click Uninstall at the top.

 

10.  Foollow the prompts to uninstall the MP Navigator.

 

11.  Once done, please reboot your computer.

 

When your computer restarts, we will reinstall:

 

 1.  Please use the following link:

 

https://www.usa.canon.com/internet/portal/us/home/support/details/printers/support-inkjet-printer/mx...

 

 2.  Click the Select button next to "MX340 series MP Driver Ver.1.06 (Windows)".

 

 3.  Click the Download button.  The drivers will download.

 

 4.  Once the download is complete, open your downloads folder.  To access this, press CTRL and J, then let both go.

 

 5.  Double click "mp68-win-mx340-1_06-ea24.exe" to begin the installation.

 

 6.  Follow the on screen prompts to reinstall.

 

 7.  Once the installation has completed, please attempt to print to verify that the printer works.

 

 8.  Next, please return to the downloads page and click on the Software tab (its next to the Drivers tab you were just on).

 

 9.  Click the Select button next to "MP Navigator EX Ver. 3.15".

 

10.  Click the Download button.  The installer will download.

 

11.  Once the download is complete, open your downloads folder again.

 

12.  Double click "mpnx_3_1-win-3_15-ea23_2.exe" to begin the installation.

 

13.  Follow the on screen prompts to reinstall the MP Navigator EX.

 

Once reinstalled, please attempt to scan.

 

 

 

Did this answer your question? Please click the Accept as Solution button so that others may find the answer as well.

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18 REPLIES 18

Ramona
Authority

Hi dustaymm,

 

The TWAIN drivers are installed at the same time the printer drivers are installed.  Since the PIXMA MX870 folder was not in the TWAIN_32 folder and you experienced the same issue after reinstalling with the disc, we can install the latest drivers and version of MP Navigator from the Canon USA website to try and resolve the issue.  The following link will take you to the initial download page for your PIXMA MX870:

 

PIXMA MX870 Drivers and Software page

 

Once on the initial download page for your model, please do the following:

 

1.  Verify that the operating system detected in the "OPERATING SYSTEM" drop-down menu is correct, and if it is not, please click the drop-down menu to select your operating system.

 

2.  Next, please click on the red arrow next to the "DRIVERS" section and click the MP Drivers file.  When you do, another page will appear giving details of the file you are about to download will appear. 

 

3.  Please scroll down on the Details page and agree to the terms of the disclaimer message to continue with the download process by clicking on the "I AGREE - BEGIN DOWNLOAD" button.  After clicking the "I AGREE - BEGIN DOWNLOAD" button, follow the instructions to download and install the driver.  The time for the download process may vary depending on the speed of your Internet connection and the size of the file being downloaded.  Please be sure to have the USB cable unplugged from the computer prior to installing the drivers; the installation program will prompt you to plug it in at the appropriate time.

 

Once you are done reinstalling the drivers, please follow the steps above to also re-install the MP Navigator program on your computer, except for you will want to click on the red arrow next to the word "SOFTWARE" instead of  "DRIVERS" in Step 2 to locate and download the MP Navigator program.  After all of the drivers and software have been installed, please restart your computer and attempt to scan.

 

Hope this helps!

 

This didn't answer your question or issue? Find more help at Contact Us.

 

 

Did this answer your question? Please click the Accept as Solution button so that others may find the answer as well.

I bought a brand new canon flatbed scannerl 700f and inserted the software disk supplied, installed, but I find that the NavigatorMP that was part of it keeps saying cannot open, why? I am running windows 8.1professional. I have tried re downloading this from Canon,s website, still no luck, can anyone advise me on this, I am not too technically, savvy regarding twain etc. Hopefully someone in last mans language. Thank you. Geoff Cox. west cornwall. uK.

Hi Geoff!


Welcome to The Canon Forums, and thank you for your inquiry!

We appreciate your participation, however we need to let you know that the Canon Forum is hosted and moderated within the United States by Canon USA. We are only able to provide support for Canon products manufactured for and used within the US market.

If you live outside the United States, please click here and select your country or region for your support needs.

Feel free to discuss Canon products sold outside of the United States, but please be aware that you will not receive support directly from Canon USA.

On Win 7 64bit, mp navigator cannot start.  The canon files seem ok in twain_32.

 

I've reloaded the drivers and mp navigator fron the canon site.  All printer functions work except scan.

 

Thanks for your help.

jim

Hi jyy000,

 

Are there any other files in your TWAIN_32 folder other than the files related to your printer and the wiatwain.ds file?  Also, what printer model do you have?

 

If this is a time-sensitive matter, additional support options are available at Contact Us.

 

 

Did this answer your question? Please click the Accept as Solution button so that others may find the answer as well.

 

Hi Romona,

My printer is Pixma MX870.  The twain_32 folder had a folder called MX870 series that contain 62 files.

 

Twain_32 only has the file wiatwain.ds and the MX870 series filder.

 

Thanks for your help,

jyy000

I tried the various options without any luck until I contacted customer service and they gave me the help I needed to correct the problem on MP Navigator EX not opening.   Give them a try. 

I've tried to contact Support but only thru Forum. All I get is a email with another stupid link to here... Do you happen to have a Contact #...?

Hi tdenbrock!

 

You can reach our technical support team by PHONE or by E-MAIL, whichever works for you!

 

Let us know if you have other questions!

 

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