Sheet conveyance device, and image forming apparatus and image reading unit including same
US8444135B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2011 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Nov 10, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2801/39
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet conveyance device includes a loading section, a first conveyance member a separation section, a first sheet length detector to detect whether the sheet is longer than a predetermined length slightly longer than a specific sheet size in the sheet conveyance direction, a trailing-edge detector disposed downstream from the separation section, a leading-edge detector disposed downstream from the trailing-edge detector a distance smaller than the specific sheet size and from the first conveyance member a distance longer than the specific sheet size, and a controller. When the sheet is equal to or greater than the predetermined length, the controller starts sheet feeding when the trailing-edge detector detects the trailing edge of the sheet, and when the sheet is smaller than that, the controller starts sheet feeding when either the leading-edge detector detects the leading edge of the sheet or the trailing-edge detector detects the trailing edge thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.