A printing control apparatus performs print processing by sequentially
spooling print data received from a data processing apparatus via a
predetermined communication medium in units of a job and the spooled
print data is analyzed in units of a job. The printing control apparatus
spools the print data in a memory. When print processing is interrupted
during processing of print data which has been spooled in advance, an
execution schedule of each spooled job is changed so as to preferentially
execute a job of spooled print data capable of being printed by analyzing
the cause of the interruption of printing.