1. An image forming apparatus including job processing means for processing predetermined different jobs submitted by a corresponding job requester and a web server for executing a web server function to display a predetermined setting screen by using a browser of an information processing apparatus that can be communicated on a network, the image forming apparatus comprising: history record storage means for storing job processing history records concerning the jobs processed by the job processing means according to each job processing requester; authentication means for conducting an authentication for each job processing requester on the predetermined setting screen displayed by using the browser of the information processing apparatus when the job processing requester requests the job processing means to process a job; setting means for setting rules for displaying job processing history record items by using the predetermined setting screen displayed by using the browser of the information processing apparatus and to be displayed on an operation display unit; the setting of rules for displaying job processing history record items is performed by the job processing requester when the job processing requester is authenticated by the authentication means; and determining means for determining an attribute of the job processing requester authenticated by the authentication means, wherein the web server can display the job processing history records stored in the history record storage means on the predetermined setting screen displayed by using the browser of the information processing apparatus by differentiating a display mode between the job processing requester and another job processing requester, based on a result obtained by the determining means and the rules set by the setting means, and wherein the display mode of displaying the job processing history records is differentiated by changing the records to be masked depending on the job processing requester or another job processing requester.