IMAGE FORMING APPARATUS THAT PERFORMS UPDATING OF FIRMWARE, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM

摘要

An image forming apparatus having a firmware update technology that realizes updating of firmware using an encrypted file and reduces a downtime using a differential update. When a first update instruction to perform an update using a first firmware including an encrypted plurality of files is accepted, a content list file is downloaded from an external apparatus, an update file to be updated is identified based on the content list file, and the identified update file is further downloaded from the external apparatus. Then, the update file is decrypted and installed in the image forming apparatus. When a second update instruction to perform an update using a second firmware including an encrypted plurality of files and content list files is accepted, the second firmware is downloaded in a single batch from the external apparatus. Then, the second firmware is decrypted, and the plurality of files is installed in the image forming apparatus.

主权项

1. An image forming apparatus that performs an update of a firmware comprising a plurality of update files and a content list file that shows a combination of the plurality of files, the image forming apparatus comprising:
a first acceptance unit configured to accept a first update instruction to perform an update of a first firmware in which the plurality of files are respectively encrypted; a first installation unit configured to, in a case where the first update instruction is accepted by said first acceptance unit, download the content list file from an external apparatus, identify an update file as an object of an update on a basis of the content list file, download the identified update file from the external apparatus and decrypt the update file, and install the update file in the image forming apparatus; a second acceptance unit configured to accept a second update instruction to perform an update of a second firmware in which the plurality of update files and the content list file are put together in a single file and encrypted; and a second installation unit configured to, in a case where the second update instruction is accepted by said second acceptance unit, download the second firmware in a single batch from the external apparatus and decrypt the second firmware, and install a plurality of files included in the decrypted second firmware in the image forming apparatus.