Providing authenticated communications to a replaceable printer component
US9875365B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 2008 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Apr 2, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/608
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A replaceable printer component includes a first memory device and a communication link. The first memory device stores a first secret. The communication link is configured to communicatively link the first memory device to a printer controller when the replaceable printer component is installed in a printing system. The printing system includes a second memory device storing a second secret. The second memory device is communicatively linked to the printer controller. The first memory device is configured to authenticate communications between the first memory device and the printer controller based on the first secret and the second secret.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.