Sheet feeding device, sheet feeding unit and image forming apparatus connected with the sheet feeding unit with a controlled floating air blowing mechanism
US7913993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2009 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Dec 8, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2801/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet feeding device may include a sucking and conveying mechanism having a suction surface, which sucks sheets stacked on a sheet stacking table, from an upper surface of the sheets, sucks an uppermost sheet to be sucked on the suction surface, and conveys the uppermost sheet onto a sheet conveyance path; a floating air blowing mechanism which blows floating air against the sheets from a side surface of the stacked sheets; a sheet position detecting sensor which detects an upper surface height position of the sheets stacked, and detects a floating state of the sheets floated; and a controller which judges the floating state of the sheets detected in a floating state detecting period in connection with a blowing of the floating air, and controls an air volume of floating air blown from the floating air blowing mechanism based on the floating state of the sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.