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Error 9923


I get the error - An error occurred while communicating with scanner . (-9932) whenever i try to scan, however printer works. 


System: I use macOS Sierra - 10.12.1 connected on Wifi

Printer: Cannon - MF227 dw



Anyone has a solution for this?






Hi vasudevan.


I will be able to assist you.


Please verify that the MF227dw is selected for network scanning by following the instructions below:

  1. Select [Applications] under [GO].

  2. Select [Canon MF Utilities] > [MF Toolbox 4.9].

  3. You may receive an error that the scanner is not connected. This is fine.

  4. Click [MF Toolbox] next to the Apple icon in the left corner of the screen and select [Network Settings].

  5. Select the [MF220 Series], and then click on the [+] symbol and select [Add].

Next, quit the MF Toolbox, and then open it back up.  Once the program is open, please scan a document and verify if you still receive an error.


If you still continue to experience an error, please call us at 1-800-OK-CANON (1-800-652-2666) for further assistance.

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


I have a Macpro and G4410 printer / scanner. Printer worked fine but scanner didn't. 


I tired all the network fixes - system preferences ivp6 auto , manual etc but nothing worked.


Eventually I ran Applications -> Canon Utilities -> IJ Network Device Setup Utility


It turns out I had a very poor signal from the wifi router (<18%) to the printer, so I repositioned the printer in the room, reran the utility and voila over 59% signal strength !  So clearly the scanner needs a wifi stronger signal than the printer.  I don't think I've seen this mentioned anywhere before.


good luck 



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