Cupcakes with frosting sheets

Getting ready to print on frosting sheets for the first time.

I'm using a Canon PIXMA IP3500 with Kopykake 8 x 10.5 frosting sheets.  I printed the invitation graphic.  Not sure why the black did not print.  20 Almond Sour Cream cupcakes (recipe below) are frosted with buttercream.

Almond Sour Cream Cupcakes

1 box cake mix without pudding
1 cup all-purpose flour 
1 cup granulated sugar
3/4 teaspoon salt 
1 1/3 cups 2% milk
1/4 cup vegetable oil 
1 teaspoon real vanilla 
1 teaspoon almond extract 
1 cups sour cream 
3 large eggs 

Preheated oven 350° F
Place all dry ingredients in a large mixing bowl and stir together with a wire whisk.
Add the remaining ingredients and beat on medium speed for 2 minutes.
Bake for about 25 minutes

Visit Sugarcraft to find help with frosting sheets.