For the MIB: this object is generalized so that it applies
to scanning as well as printing.
ISO DPA: Job-copies-completed
This attribute indicates the number of job-copies of the job
that the printer(s) have completed printing. The server shall
not reset its value during the processing of multiple print-job
results that are part of the same job (see the results-profile
job attribute). Since this attribute is intended to measure
the progress of a job, the value shall include repeated job-
copies due to multiple print-job results for the same job.
The accuracy of this value is implementation-dependent. It is
expected that the value reported is never greater than the
actual value. This attribute may not be supported for all
printers and all page description languages.
The value of this attribute shall be 0 if printing has not
started for this job.