Title:
給紙装置および画像形成装置
Document Type and Number:
Japanese Patent JP5304783
Kind Code:
B2
Abstract:
A sheet feeder comprising a sheet receiving section (P20) having an elevating/lowering plate (960), a member (920) for regulating the sides of sheets, an air blowing section (986) for blowing air toward the sides of sheets at upper levels out of the sheets received in the sheet receiving section, a sheet suction-conveyance section (VT20) installed above the sheet receiving section with a gap kept from the uppermost sheet of the sheets received in the sheet receiving section, a reflective sensor (970) for detecting the upper limit position of stacked sheets received in the sheet receiving section, and a control section for performing control to elevate the elevating/lowering plate when an output from the reflective sensor indicates an intermediate state provided between a sheet brought into a floating state by an air flow which is blown from the air blowing section, and a sheet maintaining the stacked state. As a result, stabilized sheet-feeding can be ensured even if a thick sheet of a small size is used, and the upper limit position of sheets can be controlled by a simple constitution.
Inventors:
Tomoo Suzuki
Application Number:
JP2010510011A
Publication Date:
October 02, 2013
Filing Date:
August 17, 2009
Export Citation:
Assignee:
Konica Minolta Co., Ltd.
International Classes:
B65H1/14; B65H1/04; B65H3/08; B65H3/48; B65H7/14
Domestic Patent References:
| JP2000500422A | 2000-01-18 | |||
| JP2006021867A | 2006-01-26 | |||
| JP2007276890A | 2007-10-25 |
Attorney, Agent or Firm:
Hatta International Patent Corporation