mx922 on mac won't scan says another user

[dentist]

MX 922 Wont scan on imac   Error says It is in use by another app or user

Restart, reinstall software not hepling

[Danny]

Hi, dentist!

So that the Community can help you better, we will need to know exactly which version of Mac OS X is running on your iMac, and how your computer is connected to your printer (wireless or USB). That, and any other details you'd like to give will help the Community better understand your issue!

If this is a time-sensitive matter, our US-based technical support team is standing by, ready to help 24/7 via Email at http://bit.ly/Canon-Support or by phone at 1-800-OK-CANON (1-800-652-2666) weekdays between 10 AM and 10 PM ET (7 AM to 7 PM PT).

Thanks and have a great day!

[dentist]

imac from 2008  OS 10.11.2   Connected to  mx922 with usb cable.

Scanner has worked on this config in the past

[Michael]

Hello.

Try turning the printer off and back on, then restart your Mac.  Once this has been done, open the IJ Scan Utility program and try scanning to test the unit.

If the same error persists, find more help at Contact Us.