HP Color LaserJet 9500 Multifunction Printer series - Manual (Page 146)

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130 Chapter 6 – Control panel menus Rev. 1.0
TRAY <N> CUSTOM UNIT OF MEASURE
X DIMENSION
Y DIMENSION This message appears when the custom switch is in
the
CUSTOM position and you select CUSTOM from the list
of media sizes.
The listed values are available in a pop-up menu
where you select millimeters or inches as the unit of
measure and set the X and Y dimensions of the
custom paper size.
Item Values Explanation