In the Gradebook click the name of the student whose grades you want to print this will show a panel of their information on the right side of your screen.
In this panel you will click the student's name again.
By clicking the name in the panel, Canvas will bring you to a new page housing similar information for that student. Click on Student Grades on the upper right of the screen.
Click the Print Grades button in the upper right of the individual student's grades page. Students also have the ability to print their grades.