Software update information management method for printing device, involves validating authority to download update identified by information retrieved from memory of printing device

摘要

The information related to a software update is retrieved from the memory of a printing device. The authority to download the software update identified by the retrieved information is validated for downloading the software update from the memory based on the retrieved information. Independent claims are included for the following: (1) Printing device; (2) Toner cartridge.