A user equipment issues a job for a plurality of documents to a printing
system by one operation. The user equipment assigns attributes to the
job, the attributes including the specification of collation/uncollation,
the designation of processing start instruction wait, the designation of
exclusive processing, and the designation of password input wait. The
printing system effects printing of the plurality of documents
corresponding to attributes of the documents under control of a job
scheduling device. The job scheduling device carries out the pausing of
documents included in the job, the modification of attributes, addressing
of document receiving failures, and search of a document whose format is
to be converted, thereby making it possible to efficiently print the
plurality of documents.