Patent · US Active

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 dateApr 11, 2011
Grant dateJun 5, 2012
Priority date
Expiry dateApr 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.