Printer firmware installation method, printer and printer system

摘要

An install apparatus installs printer firmware to a printer through a network in the background of normal print jobs. The Printer (4) includes a storage means (22) to store the firmware consisting of a plurality of blocks, and a processing means (20) for receiving the blocks to store to storage means (22). In case an interruption occurs during the firmware installation and at the time of resuming the installation, the processing means (20) informs install apparatus (6) of a guarantee range of the installed blocks being determined from the data stored in storage means (22). The install apparatus then restarts transferring the firmware from the succeeding transfer block of the guarantee range.