Imaging cartridge chip, imaging cartridge, and method for switching imaging cartridge chip serial number
US10012929B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2017 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Jan 18, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0697
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging cartridge chip includes a communication module for providing data communication between the imaging cartridge chip and an imaging device; a non-volatile data storage module for storing at least two different serial numbers; a volatile temporary data storage module connecting between the communication module and the non-volatile data storage module and including at least two temporary data storage units; and a control module. The control module is configured to load different serial numbers into corresponding temporary data storage units; to send a serial number in a selected temporary data storage unit to the imaging device; to determine whether the serial number sent to the imaging device passes a legitimacy verification of the imaging device; and when the serial number sent to the imaging device does not pass the legitimacy verification, to send a serial number in another temporary data storage unit to the imaging device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.