Document feeder, image-scanning apparatus, and image-forming apparatus
US8427720B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 2010 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Jul 26, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2553/82
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A document feeder includes: a conveyance unit that separates one document from among documents placed on a document tray, and conveys the document; a first width-determining unit that determines a width of one of the documents; a second width-determining unit that determines a width of the conveyed document; a first length-determining unit that determines a length of one of the documents; a second length-determining unit that determines a length of the conveyed document; and a controller that if an inconsistency occurs between the width determined by the first width-determining unit and the width determined by the second width-determining unit, causes a display unit to display an operation guide including first content, and if an inconsistency occurs between the length determined by the first length-determining unit and the length determined by the second length-determining unit, causes the display unit to display an operation guide including second content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.