Konica Minolta bizhub C20 Reference Manual page 316

Paper Source
The System - Device Information - Paper Source window provides the fol-
lowing information.
Item
Paper Source
Paper Size
Paper Type
Paper
Detail button
292
Description
Identifies the paper feed units Tray 1/2/3 installed on
the machine.
Indicates the size of paper loaded in a specific tray.
Indicates the type of paper loaded in a specific tray.
Indicates the paper status ("Ready" or "Empty") for
each tray.
Displays detailed information about the paper trays.
Viewing Printer Status