Xerox WorkCentre 480cx User Manual page 66

Print the 480cx User Guide
This will reduce incoming pages equally along both axes in order to
maintain the proportionality of the original image, as shown below.
Press 2 to turn off RX Reduction.
Press 3 to enable vertical only RX Reduction. The machine will reduce
an incoming page containing overflow data along the vertical axis only.
The net effect will be a vertical compression of the image as shown
below:
1-54 Getting Started
Received Data
Original
Received Data
Original