Object used to indicate the type of Paper Trays that are
installed within the print device. The contents of this
object shall expose a string of valid Paper Tray names which
are seperated by a comma. Valid paper tray types include:
'notInstalled'
'traysInstalled'
'1Tray'
'2Trays'
'3Trays'
'3TraysHighCapacity'
'4Trays'
'4TraysHighCapacityTandemTray'
'5Trays'
'6Trays'
'extraTraysNotInstalled'
'1ExtraTray'
'2ExtraTrays'
'3ExtraTrays'
'4ExtraTrays'
'5TraysHighCapacityTandemTray'
'6TraysHighCapacity'
'6TraysHighCapacityTandemTray'
An example: 6Trays,2ExtraTrays