System and method for determining a level of toner in a replacement toner cartridge
US9372438B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2014 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Oct 17, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/556
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electronic device for determining a level of toner volume in a replacement toner cartridge used in a printing device comprises a communication element, a memory element, and a processing element. The communication element transmits a request to the printing device to provide data regarding the replacement toner cartridge and receives the data. The data includes a current level of toner volume and a current printed page count. The memory element stores the data received from the printing device. The processing element is in communication with the communication element and the memory element. The processing element is configured to determine one of a plurality of sequential phases of a usage cycle of the replacement toner cartridge corresponding to a value of the current level of toner volume and determine a corrected level of toner volume using one of a plurality of equations selected according to the phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.