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New Contributor
Posts: 2
Registered: ‎11-10-2017

Canon MX490 Cannot communicate with scanner

Hi,                                                                       November 10, 2017


I have had the MX490 for a year. Today, a neighbor needed to borrow my USB cable from my Printer/Scanner.


When I re-installed the USB cable and go to make a scan I get the message:

Cannot comminicate with scanner for this reason

-Scanner is turned off

-USB cable is disconnected

Code 5, 156, 69


The USB cable is connected and ther printer/scanner is turned on.

I am able to make prints from the internet with the printer but I get the above message when I try to use the scanner.


I re-nstalled the driver but that doesn't help.


Please help me resolve this issue.

Reputable Contributor
Posts: 861
Registered: ‎10-12-2012

Re: Canon MX490 Cannot communicate with scanner

Hi, krebspj!

Welcome to the Canon Forums and thanks for your post!

To have a better understanding of your issue, please let everyone know what operating system (Windows Vista/7/8 or Mac OS 10.X) you are using.


If this is a time-sensitive matter, our US-based technical support team is standing by, ready to help via Email at

New Contributor
Posts: 2
Registered: ‎11-10-2017

Re: Canon MX490 Cannot communicate with scanner

Hi,                                                                  November 10, 2017


I'm using Windows 10 Pro, 64 bit operating system.

Product Expert
Posts: 383
Registered: ‎01-20-2016

Re: Canon MX490 Cannot communicate with scanner

Hi krebspj,


Let's re-install the drivers one more time, this time with a twist.


  1. Disconnect the USB cable
  2. Click HERE.

  3. Scroll down to "Optional Drivers."

  4. Click “Select” next to "MX490 series MP Drivers."

  5. Press "Download."

  6. Open and run the file.

  7. Follow the onscreen instructions to complete the installation.

The installation program will prompt you when to reconnect the USB cable.


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