Provided is an image forming apparatus configured to: set, when an error occurs, a user who has a shorter take-away time than a user of a data transmission source as an additional notification destination; and transmit an error occurrence notification to the additional notification destination as well, and further configured to, when the take-away time of the user of the additional notification destination has elapsed since the error occurrence notification is transmitted to the additional notification destination without an error elimination operation being conducted: set a user who has a shorter take-away time than a time obtained by subtracting the take-away time of the user of the additional notification destination from the take-away time of the user of the data transmission source, as a new additional notification destination; and transmit the error occurrence notification to the new additional notification destination.