An image formation device stores therein print data targeted for secure
printing received through a network. When a user is authenticated by a
user authentication part, the image formation device reads the print data
targeted for secure printing to execute a print job. The image formation
device includes a job management part for managing the stored print data
targeted for secure printing. When a print job is not executed at a point
in time after the elapse of a predetermined period of time after the
receipt of the print data targeted for secure printing, the job
management part encrypts the print data using a certain encryption key,
and transmits the encrypted print data to an intended device connected to
the network. Namely, when a printout of the print data targeted for
secure printing received through the network is not obtained at a point
in time after the elapse of a predetermined period of time, the print
data is transmitted to another device connected to the network with the
security of the print data maintained. As a result, a printout of the
print data is obtained by another image formation device.