HP Laserjet,Color Laserjet P3015 - Use Paper Output Options

Custom paper sizes
This product supports a variety of custom paper sizes that are within the minimum- and maximum-size
guidelines for the product but are not listed in the supported paper sizes table. When using a supported
custom size, specify the custom size in the print driver, and load the paper in a tray that supports custom
sizes.
ENWW Custom paper sizes 77