Xerox 128 manual System software and job flow, Job, Input queue, Decomposer

System components

System software and job flow

This section describes how the system software processes are used as a typical job flows through the system.

NOTE: There are no job flow differences between the High volume printer and the Production publisher configurations.

Figure 2-1. Job flow

1.Job

2.Input Queue

3.Decomposer

4.Output queue

5.Printer

Job

The job and the job ticket (if applicable) are received from the network by one of the protocol gateways.

Input queue

The Job Pool Manager (JPM) process transfers the job into the input queue. The virtual printer name and job attributes are attached to the job. The job remains in the Input Queue until it can be printed; for example, “held” and “faulted” jobs reside in the input queue.

Decomposer

The Job Chooser reconciles the job attributes with the virtual printer attributes. Once the job is ready for print, the Job Chooser gives the job to the appropriate decomposer, PostScript or PCL.

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