Data communication program product to rewrite simultaneously firmware of plurality of devices connected to network

摘要

New firmware is attached to electronic mail from a computer of the service center to be transmitted towards a monitor device at the user side. The monitor device of the user side reads out the electronic mail from a mail server and downloads the electronic mail into its own apparatus. Then, the firmware is derived from the electronic mail and transmitted to an image formation apparatus that is the subject of transmission. The image formation apparatus receiving the firmware writes the new firmware into the flash ROM that is the subject of rewriting. Accordingly, increase of the communication traffic can be prevented and the load on the mail server can be alleviated in the case where the same firmware for a plurality of devices connected on a network is to be altered using an electronic mail system.