Patent · US Active

Sheet feeding device and document reading device

US8016284B2 · kind B2 · utility

1Cited by
4References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 18, 2009
Grant dateSep 13, 2011
Priority date—
Expiry dateSep 22, 2029

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65H2801/06
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

An operation of a pickup roller to be performed upon powering on or after paper jam elimination is adjusted according the presence or absence of a document on a document sheet support. When the document is absent on the sheet support, the pickup roller is moved down sufficiently and then moved up by a first distance to assume an upper limit position. When the document is present on the sheet support, the pickup roller is moved up by a second distance which is shorter than the first distance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.