System and related methods for automatically determining the media count in a printing device media tray
US7025346B1 · kind B1 · utility
4Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2000 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Apr 10, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/2323
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for determining the amount of media available to a printing device is presented. The system comprises a sensor and a disc containing one or more visual cues perceptible to the sensor. The disc is rotated by a coupled lifting member to lift a media handling tray to present any media stored thereon to a receiving printing device. The sensor generates a signal based, at least in part, on the visual cues provided from the rotated disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.