Hi bk1,
Please turn your MAXIFY MB2120 off for 15 minutes and then turn it back on.
Once on, please take note of the Support Code that appears on the display of your printer.
To resolve the error you are experiencing, please look up your Support Code here:
MAXIFY MB2120 - List of Error Support Codes
If you continue to have difficulties, please contact one of Canon's Technical Support Representatives via phone or chat. To contact a Technical Support Representative, please use the link below to log into your My Canon account:
https://mycanon.usa.canon.com
Once logged in, click on your MAXIFY MB2120 and then click on the Product Support button. When that page loads, click on either the Phone Support button or the Chat Support button to access support.
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