EP0371703A2 - Dispositif de lecture par balayage de documents - Google Patents

Dispositif de lecture par balayage de documents Download PDF

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Publication number
EP0371703A2
EP0371703A2 EP89312203A EP89312203A EP0371703A2 EP 0371703 A2 EP0371703 A2 EP 0371703A2 EP 89312203 A EP89312203 A EP 89312203A EP 89312203 A EP89312203 A EP 89312203A EP 0371703 A2 EP0371703 A2 EP 0371703A2
Authority
EP
European Patent Office
Prior art keywords
documents
document
code
reading
document scanner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP89312203A
Other languages
German (de)
English (en)
Other versions
EP0371703A3 (fr
Inventor
Yasuhiro C/O Mitsubishi Denki K.K. Futaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0371703A2 publication Critical patent/EP0371703A2/fr
Publication of EP0371703A3 publication Critical patent/EP0371703A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • B65H7/12—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation
    • B65H7/125—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation sensing the double feed or separation without contacting the articles

Definitions

  • the present invention relates to document scanners for reading a number of documents sheet by sheet.
  • the document scanner 1 includes a document tray 2 for supporting a plurality of documents 3, and a document feeder 4 for feeding a document 5 one by one to a reading section 6 from the document tray 2.
  • each of the documents 3 in the document tray 2 is fed to the reading section 6 by the document feeder 4 for reading the contents.
  • This document scanner 1 One advantage of this document scanner 1 is that documents are read automatically one by one. However, two or more documents can be fed to the reading section 6 at the same time because of variations in paper thickness, friction, etc.
  • FIG. 12 Such a condition is shown in FIG. 12, with the document scanner 1 omitted for simplicity, wherein two documents 11 and 21 are fed one upon another.
  • the conventional document scanner 1 has no device for detecting such double or multiple feeding so that the operator must always monitor the operation.
  • a document scanner which includes a document tray for housing a plurality of documents to be read, a reading section for reading contents of the documents, and a document feeder for feeding the documents one by one to the reading section from the document tray, a code decoder provided in the read section for reading a code provided at a leading edge of each of the documents; and a detecting unit connected to the code decoder for detecting multiple feeding when the code is covered by the preceding document.
  • a document reader 111 has a reading section 61.
  • a document 11 has a start code 12 at the leading edge and an end code 13 at the tailing edge. These start and end codes 12 and 13 are designed such that the document scanner 111 detect them.
  • the reading section 61 includes a read head 62, a code decoder 63 for reading the start and end codes 12 and 13, a detector unit 64 responsive to an output of the code decoder 63 to detect multiple feeding, and a document data processor 65.
  • a plurality of documents 3 in the document tray 2 are fed to the reading section 61 by the document feeder 4 one by one for reading the contents.
  • the code decoder 63 is responsive to an output of the read head 62 to read the alternating start and end codes 12 and 13 as shown in FIG. 5. Also, the output of the read head 62 is fed to the document data processor 65.
  • the start code 12 of the subsequent document 21 is covered by the preceding document 11 so that the code decoder 63 reads the start code 12, end code 13, and end code 13 in this order as shown in FIG. 7. Consequently, the detecting unit 64 senses the irregular output to detect the multiple feeding.
  • a page code 14 may be provided at the leading edge of a document 11 as shown in FIG. 8.
  • the page codes 14 are consecutive numbers such as "1", “2", "3",....
  • the page code "3" is detected following the page code "1" as shown in FIG. 10 so that the irregularity is sensed to detect the multiple feeding.
  • the end codes may be used along with the page codes.

Landscapes

  • Facsimiles In General (AREA)
  • Character Input (AREA)
  • Image Input (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP19890312203 1988-11-26 1989-11-24 Dispositif de lecture par balayage de documents Withdrawn EP0371703A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP15417888U JPH0275454U (fr) 1988-11-26 1988-11-26
JP154178/88 1988-11-26

Publications (2)

Publication Number Publication Date
EP0371703A2 true EP0371703A2 (fr) 1990-06-06
EP0371703A3 EP0371703A3 (fr) 1990-11-22

Family

ID=15578540

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890312203 Withdrawn EP0371703A3 (fr) 1988-11-26 1989-11-24 Dispositif de lecture par balayage de documents

Country Status (3)

Country Link
EP (1) EP0371703A3 (fr)
JP (1) JPH0275454U (fr)
CA (1) CA2003870A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4193146B2 (ja) 2005-09-14 2008-12-10 コニカミノルタビジネステクノロジーズ株式会社 画像処理装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2393484A1 (fr) * 1977-05-31 1978-12-29 Cit Alcatel Procede d'identification d'un document en vue de la transmission fac-simile de son contenu et installation automatique de transmission de fac-simile
JPS5713585A (en) * 1980-06-26 1982-01-23 Toshiba Corp Paper feed error detecting device
JPS58101369A (ja) * 1981-12-10 1983-06-16 Ricoh Co Ltd 画像処理用帳票

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2393484A1 (fr) * 1977-05-31 1978-12-29 Cit Alcatel Procede d'identification d'un document en vue de la transmission fac-simile de son contenu et installation automatique de transmission de fac-simile
JPS5713585A (en) * 1980-06-26 1982-01-23 Toshiba Corp Paper feed error detecting device
JPS58101369A (ja) * 1981-12-10 1983-06-16 Ricoh Co Ltd 画像処理用帳票

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6, no. 75 (P-114)(953) 12 May 1982, & JP-A-57 13585 (TOKYO SHIBAURI DENKI) 23 January 1982, *
PATENT ABSTRACTS OF JAPAN vol. 7, no. 206 (P-222)(1351) 10 September 1983, & JP-A-58 101369 (RICOH) 16 June 1983, *

Also Published As

Publication number Publication date
EP0371703A3 (fr) 1990-11-22
JPH0275454U (fr) 1990-06-08
CA2003870A1 (fr) 1990-05-26

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