"Problem with installation unit may not work" Error message keeps telling me to turn on scanner or plug it in. Have re-installed the software but same error messages appear.

Hi Joanne ,
You can download and install the software/driver from here :
http://www.usa.canon.com/cusa/support/consumer/printers_multifunction/pixma_mx_series/pixma_mx300#DriversAndSoftware
Disconnect first your unit and delete previously installed driver(s) . Install downloaded software ( full ) .You may need to reboot . Reconnect unit after reboot .
Best regards ,
fanaudi .

Yes, the scanner program is telling you the next step and that is to uninstall the software and the device and to reinstall it by using the installation CD.

Did you plug in the scan unit and then installed the software?
If you did you will have to unplug or turn off your scanner then uninstall your software.
Reboot and the with the scanner turned off reinstall the software. If the install asks you to plug in your scanner, turn it on. If it asks you to reboot, then reboot. After rebooting, turn on the scanner then start the Easy Scan Utility. This should work.
It worked for me.

Error messages; Error: "Cartridge Error 50C"; Cartridge error; Black cartridge missing; Color cartridge missing Solution Cartridge Error 50C
Your print cartridge has shorted.

1. Power off your All-in-One and unplug it.
   
2. Plug in your All-in-One again and turn it on.
   
3. Uninstall and then reinstall your cartridges.
   
4. If this does not resolve the issue, try the troubleshooting steps for the other cartridge errors below.
   

Error: Black Cartridge Missing
The black cartridge is not installed. (Install cartridge PN 82)
Error: Color Cartridge Missing
The color cartridge is not installed (Install cartridge PN 83)
Cartridge Error
Complete the following instructions:

1. Power off your All-in-One.
   
2. Use both hands to lift up the scanner unit until the scanner support holds it open.
   
3. Turn the All-in-One on. The print cartridge carrier moves and stops at the loading position, unless the All-in-One is busy.
   
4. Remove the color print cartridge.
   
5. Lower the scanner unit until it is completely closed.
   
6. If the error message reappears, replace the black print cartridge with a new print cartridge.
   If it does not repeat steps 1-3 and then go to step 7.
   
7. Reinstall the color cartridge and remove the black print cartridge.
   
8. Lower the scanner unit until it is completely closed.
   
9. If the error message occurs again, replace the color cartridge.
   
10. If an error message reappears, repeat steps 1-3 and reinstall both print cartridges.
    
11. Lower the scanner unit until it is completely closed.
    
12. If you receive the error message again, replace both cartridges.

Is that an error code "Cartridge Error 50C" ? If so, see below....

Cartridge Error 50C: Your print cartridge has shorted.
1. Power off your All-in-One and unplug it.
2. Plug in your All-in-One again and turn it on.
3. Uninstall and then reinstall your cartridges.
4. If this does not resolve the issue, try the troubleshooting steps for the other cartridge errors below.

Error: Black Cartridge Missing - The black cartridge is not installed. (Install cartridge PN 82)
Error: Color Cartridge Missing - The color cartridge is not installed (Install cartridge PN 83)

Cartridge Error: Complete the following instructions:
1. Power off your All-in-One.
2. Use both hands to lift up the scanner unit until the scanner support holds it open.
3. Turn the All-in-One on. The print cartridge carrier moves and stops at the loading position, unless the All-in-One is busy.
4. Remove the color print cartridge.
5. Lower the scanner unit until it is completely closed.
6. If the error message reappears, replace the black print cartridge with a new print cartridge.
If it does not repeat steps 1-3 and then go to step 7.
7. Reinstall the color cartridge and remove the black print cartridge.
8. Lower the scanner unit until it is completely closed.
9. If the error message occurs again, replace the color cartridge.
10. If an error message reappears, repeat steps 1-3 and reinstall both print cartridges.
11. Lower the scanner unit until it is completely closed.
12. If you receive the error message again, replace both cartridges.

DID U PLUG THE UNIT IN BEFORE INSTALLING THE SOFTWARE?THIS COULD CAUSE A PROBLEM.TRY UNINSTALLING THE SOFTWARE & STARTING FROM SCRATCH.ALSO CHEK THE C.D.,U.S.B. CORD COULD ALSO BE A PROBLEM.U SHOULD HEAR A TONE WHEN U PLUG OR UNPLUG THE UNIT.GOOD LUCK!!!!!!!!!!!!!

You may have to temporarily disable your FIREWALL, ANTI-VIRUS, PHISHING FILTER, etc to get the software to install correctly. Also, when installing the software, do not use the DEFAULT OPTIONS. If there is an ADVANCED setting for the scanner, select that, and see if you can configure it for your requirements.

Select from the list below

Windows
» HP Scanjet Scanners Supported and not Supported in Microsoft(R) Windows XP » Resolving 'Missing MSIEXEC.EXE File is Linked to Missing Export: MSI.DLL.222' Error Message During Installation of the HP Director Software » Resolving 'Scanner not supported' or 'Unsupported operating system' Error Messages » Resolving Image Zone Install Error 1402, 1406, 1714, 1904, 1935, 2203, or Unknown Error » Error 'The System Cannot Find the File Specified' While Attempting to Install the HP Photo & Imaging Software in Windows 98, 98se, or Me » 'Cannot Install This Hardware - The Required Section Was Not Found in the INF' Error Message in Windows XP » 'Error Install Failure' Message for the hpznfx01.exe Software Module Displays on the Computer When Installing HP Image Zone » The message 'Fatal error during installation' or 'Error Install Failure' Occurs When Installing HP Image Zone » A 'Fatal Error' or 'Error_Install_Failure' Error Message Displays on the Computer When Installing the Image Zone Software » The Error Message 'Error_Install_Failure' or 'Fatal Error' Occurs when Installing Image Zone Software
Macintosh
» Mac OS: Software Driver Install Causes Error, "Interface Lib Get Component Resource Could not be Found" » 'Cannot Install This Hardware - The Required Section Was Not Found in the INF' Error Message in Windows XP » 'Scanner could not be initialized' Message Displays in Mac OS X when the All-in-One Software is Installed » Mac OS: Software Driver Install Causes Error, "Interface Lib Get Component Resource Could not be Found"

Cartridge Error 50C
Your print cartridge has shorted.

1. Power off your All-in-One and unplug it.
2. Plug in your All-in-One again and turn it on.
3. Uninstall and then reinstall your cartridges.
4. If this does not resolve the issue, try the troubleshooting steps for the other cartridge errors below.

Error: Black Cartridge Missing
The black cartridge is not installed. (Install cartridge PN 82)

Error: Color Cartridge Missing
The color cartridge is not installed (Install cartridge PN 83)


Cartridge Error
Complete the following instructions:

1. Power off your All-in-One.
2. Use both hands to lift up the scanner unit until the scanner support holds it open.
3. Turn the All-in-One on. The print cartridge carrier moves and stops at the loading position, unless the All-in-One is busy.
4. Remove the color print cartridge.
5. Lower the scanner unit until it is completely closed.
6. If the error message reappears, replace the black print cartridge with a new print cartridge.
If it does not repeat steps 1-3 and then go to step 7.
7. Reinstall the color cartridge and remove the black print cartridge.
8. Lower the scanner unit until it is completely closed.
9. If the error message occurs again, replace the color cartridge.
10. If an error message reappears, repeat steps 1-3 and reinstall both print cartridges.
11. Lower the scanner unit until it is completely closed.
12. If you receive the error message again, replace both cartridges.

what is the exact error message and extension error?