Hello megias,
Since you can still scan to your Mac OS Sierra computer with your imageCLASS MF244dw, I suggest you delete the printer from System Preferences then re-add the printer using the steps below to restore your ability to print.
1. Choose Apple menu > System Preferences, then click Printers & Scanners.
2. Select the printer in the list, then click Remove '-' (minus).
3. Ensure your printer is turned on and the USB cable is connected directly from the printer to your computer.
4. Press the '+' PLUS button to add the printer. A window will open to add the printer.
5. Click 'Default'.
6. Select the Canon MF244dw (or MF240 Series) that has 'USB' listed for Kind.
7. Select 'Select Printer Software' or 'Select Software' from Print Using or Use > select the driver corresponding to your printer from the list >click OK.
8. Click 'Add'. The printer is added to 'Printer List'.
9. Confirm that the printer has been added > close the dialog box. Confirm that the driver name selected in step 7 is displayed bedside 'Kind'.
If you need immediate assistance and you're in the USA, please click http://Canon.us/ContactCF for our US-based support. If you're outside of the US, please click http://Canon.us/4xf7 for support options.
Did this answer your question? Please click the Accept as Solution button so that others may find the answer as well.