Method and apparatus for maintaining a predetermined media stack height in a media tray used in an image production device
US8191889B1 · kind B1 · utility
3Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2011 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Apr 11, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2801/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for maintaining level media stack in a media tray used in an image production device is disclosed. The method may include receiving a stack of media sheets on top of a plurality of selectively-controllable inflatable bladders located in the media tray, and maintaining a level media stack by inflating or deflating one or more of the plurality of selectively-controllable inflatable bladders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.