Description: Indicates what printer sub-systems are currently processing this print job. The last OID field for this dynamic object contains the job ID. cSourceSubsystem - some of the job is in the printer I/O subsystem. cProcessingSubsystem - some of the job is in the printer imaging processing subsystem. cDestinationSubsystem - some of the job is being printed. Additional information: For LaserJet 5 cSourceSubsystem and cProcessingSubsystem will always be set and cleared together. A non-printing job will never set cDestinationSubsystem. When a page is ready to be printed, cDestinationSubsystem will be set even if a page of a previous job is currently being printed. cDestinationSubsystem remains set until the last page of the job has reached an output bin. If a page requires extensive processing and allows all the previous pages of a job to complete printing cDestinationSubsystem will remain set until the last page of the job is closed.