Canon iP4200 - PIXMA Photo Printer Service Manual page 45

2) Fold the paper at approx. 60 mm from the end, and fold the folded end in half backward, as shown below.
3) Moisten the folded end portion (indicated by the blue circle in the figure below) using a wipe, and set the
paper in the ASF so that the moistened edge of the paper contacts the 2 sub-rollers. Then, fold the other end
of the paper along the ASF cover edge to hook the paper to the ASF cover, as shown below.
4) Press and hold the Resume/Cancel button until the Power LED blinks 3 times, then release the button to
perform the paper feed roller cleaning. See "Stand alone printer operation," for details.
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