Description: The remaining capacity of the possible output sub-unit capacity in output sub-unit capacity units (PrtCapacityUnitTC) of this output sub-unit. If this output sub-unit can reliably sense this value, the value is sensed by the printer and may not be modified by management requests; otherwise, the value may be written (by a Remote Control Panel or a Management Application). The value (-1) means other and specifically indicates that the sub-unit places no restrictions on this parameter. The value (-2) means unknown. The value (-3) means that the printer knows that there remains capacity for at least one unit. Refer to Internet Draft Printer MIB, expiring Sept. 1997 for more details. Additional information: The Laserjet 1200 product does not have any sensing on the output bin, so it will always report unknown (-2). Note that for the Laserjet 1200 product this object is read-only (because any values written by a Remote Control Panel or a Management Application would be unreliable).