Patent ID: 8279474

Claim:
A printing system including an image forming apparatus and a printing server, wherein: said image forming apparatus comprises: a printing data receiving portion to receive printing data from said printing server; a job executing portion to execute a job to form an image of said received printing data; a user authenticating portion to authenticate a user; a job generating portion to generate a reserved job to form an image of printing data associated with said authenticated user; a suspending portion to temporarily prohibit said job executing portion from executing said reserved job; a job identification information issuing portion to issue job identification information for identifying said generated reserved job; a transmission demanding portion to transmit to said printing server a printing data transmission demand for demanding transmission of said printing data associated with said authenticated user, said printing data transmission demand containing said job identification information; and a releasing portion to release the prohibition of execution of said reserved job by said job executing portion when said printing data received from said printing server in response to transmission of said printing data transmission demand is received together with the same job identification information as said reserved job; and said printing server comprises: a printing data storing portion to, upon receipt of said printing data and user identification information for identifying said user, store said printing data in association with said user identification information; and a printing data transmitting portion to, upon receipt of said printing data transmission demand from said image forming apparatus, transmit to said image forming apparatus a piece of printing data among stored printing data, said piece of printing data being associated with printing data identification information contained in said printing data transmission demand and transmitted together with said job identification information contained in said printing data transmission demand.