Sheet feeder and image forming apparatus including same
US8366262B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2010 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | May 12, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H23/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A sheet feeder for transporting a sheet unreeled from a roll includes a feed roller to unreel the sheet from the roll, a registration roller to transport the sheet unreeled by the feed roller to the image forming unit, a pressure roller pressing against the registration roller, forming a registration nip together with the registration roller, a movable sheet guide to guide the sheet to the registration roller, disposed between the feed roller and the registration roller in a sheet conveyance path, a support member to movably support the movable sheet guide relative to an apparatus body in which the sheet feeder is disposed, and a bias member to bias the sheet guide toward the sheet. The movable sheet guide wraps more of the sheet around the registration roller as a degree of tension of the sheet increases by moving against a bias force exerted by the bias member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.