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Title:
DOCUMENT FEEDING DEVICE AND IMAGE FORMING APPARATUS WITH THE DOCUMENT FEEDING DEVICE
Document Type and Number:
Japanese Patent JP2018140854
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a document feeding device at a low price capable of detecting double feed of a document in both an upstream side part and a downstream side part of a document feeding path without causing upsizing of the document feeding device and cost rising thereof.SOLUTION: A document conveyance path 22 includes: an upstream side feed path 22a for receiving a document D from a document setting tray 21 close to a feed upstream side than an image reading position R; a downstream side feed path 22b for guiding the document D to a document discharge tray 23 close to a feed downstream side than the image reading position R; and an intermediate feed path 22c for mutually connecting the upstream side feed path 22a and the downstream side feed path 22b. An ultrasonic wave transmission part 30a and an ultrasonic wave reception part 30b configuring a double feed detection sensor 30 are installed across both the upstream side feed path 22a and the downstream side feed path 22b while the ultrasonic wave transmission part 30a and the ultrasonic wave reception part 30b face each other.SELECTED DRAWING: Figure 2

Inventors:
原田 裕行
河本 益雄
Application Number:
JP2017035529A
Publication Date:
September 13, 2018
Filing Date:
February 27, 2017
Export Citation:
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Assignee:
京セラドキュメントソリューションズ株式会社
International Classes:
B65H7/12; B65H43/04; G03G15/00; H04N1/04
Attorney, Agent or Firm:
大久保 隆