JPS57120950A - Detecting device for paper end - Google Patents

Detecting device for paper end

Info

Publication number
JPS57120950A
JPS57120950A JP56006657A JP665781A JPS57120950A JP S57120950 A JPS57120950 A JP S57120950A JP 56006657 A JP56006657 A JP 56006657A JP 665781 A JP665781 A JP 665781A JP S57120950 A JPS57120950 A JP S57120950A
Authority
JP
Japan
Prior art keywords
paper
roller
feed
last
cassette
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.)
Pending
Application number
JP56006657A
Other languages
Japanese (ja)
Inventor
Masakazu Niro
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56006657A priority Critical patent/JPS57120950A/en
Publication of JPS57120950A publication Critical patent/JPS57120950A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6502—Supplying of sheet copy material; Cassettes therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Paper Feeding For Electrophotography (AREA)

Abstract

PURPOSE:To shorten the paper feed path to make the device small-size, by incorporating a detecting means, which detects the state of the feed of the last paper, in a cassette to detect the paper end in the stage of the feed of the last paper. CONSTITUTION:A roller which is rotated together with a paper feed roller only when the last paper 6 is fed and a rotary sensor 8 which detects the rotation state of the roller 7 are provided in the part of a tray 3 in a cassette 2. By this constitution, when there are plural pieces of paper in the cassette 2, the roller 7 is not rotated by slippage between plural pieces of paper. Consequently, the output of the rotary sensor 8 is held in the high or low level; however, when the last paper 6 is fed, the roller 7 is rotated together with the paper feed roller, and a pulse signal is generated from the rotary sensor 8 to detect the state of the feed of the last paper 6. Thus, the paper feed path is shortened to make the device small-size.
JP56006657A 1981-01-20 1981-01-20 Detecting device for paper end Pending JPS57120950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56006657A JPS57120950A (en) 1981-01-20 1981-01-20 Detecting device for paper end

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56006657A JPS57120950A (en) 1981-01-20 1981-01-20 Detecting device for paper end

Publications (1)

Publication Number Publication Date
JPS57120950A true JPS57120950A (en) 1982-07-28

Family

ID=11644442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56006657A Pending JPS57120950A (en) 1981-01-20 1981-01-20 Detecting device for paper end

Country Status (1)

Country Link
JP (1) JPS57120950A (en)

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