Server computer and image forming apparatus for forming an image based on image data stored on server computer

An image forming apparatus used in a network image forming system, said system including the image forming apparatus, a server computer accumulating image forming jobs and transmitting data of accumulated image forming job corresponding to user information received from said image forming apparatus to the image forming apparatus that transmitted said user information, and a client computer forming an image forming job and transmitting the job to said server computer;

• said image forming apparatus comprising:
• a communication device receiving user information by noncontact communication in a predetermined range;
• a transmitting device transmitting the user information received by said communication device to said server computer;
• a receiving device receiving data necessary for image formation by itself from said server computer;
• an image forming unit forming an image using the data received by said receiving device from said server computer;
• and
• an alarm device for giving alarm information, upon receipt of an instruction form said server computer to give an alarm that an image data to be formed exists to a user approaching and entering said range, in response to transmission of said received user information to said server computer.