Abstract: An image forming apparatus (100) has an operation panel (5), a storage portion (2), an image reading portion (3), and a controller (1). On recognizing a job executed after a job is canceled as a result of a cancellation instruction being accepted to be a retried job, the controller (1), based on job information on the canceled job and job information on the retried job, detects as an error-prone item a setting item for which a set value differs between the canceled job and the retried job, and makes the storage portion (2) store improper setting information including information indicating the error-prone item.

Abstract: An image forming apparatus includes a communication device and a notification transmitting unit. The communication device is capable of data communication with a server. The notification transmitting unit transmits a notification to the server using the communication device when a transmission request for the notification is generated. The notification transmitting unit: (a) determines whether or not to transmit the notification under the transmission request based on an elapsed time from a previous transmission of the notification when the transmission request is generated; (b1) immediately transmits the notification under the transmission request using the communication device if it is determined that the notification under the transmission request is to be transmitted; and (b2) does not transmit the notification under the transmission request if it is determined that the notification under the transmission request is not to be transmitted.

Abstract: An image forming system includes an image forming apparatus and a management server. The management server acquires a job log of the image forming apparatus. Further, the management server determines a high load period of the image forming apparatus on the basis of the job log. In the determined high load period, the image forming apparatus (a) temporarily stops a specific resident process or (b) temporarily prohibits a specific interface call in the specific resident process.

Abstract: An image forming system includes an image forming apparatus and a management server. The management server acquires a job log of the image forming apparatus. Further, the management server determines a high load period of the image forming apparatus on the basis of the job log. In the determined high load period, the image forming apparatus (a) temporarily stops a specific resident process or (b) temporarily prohibits a specific interface call in the specific resident process.