Casio XJ-450 User Manual page 58

Projection Operations
3.
On the remote controller, press the [D-ZOOM +] key to enlarge the
image.
You can press the [D-ZOOM +] key again to further enlarge the image, up to 4 times.
You can back step through the image enlargements by pressing the [D-ZOOM –] key.
You can shift the zoomed image up, down, left, or right by pressing the applicable remote
controller cursor key.
4.
To exit image enlargement and return the image to its original size,
press the remote controller's [ESC] key.
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