JPS57112257A - Double feed preventer for sheet - Google Patents

Double feed preventer for sheet

Info

Publication number
JPS57112257A
JPS57112257A JP18560880A JP18560880A JPS57112257A JP S57112257 A JPS57112257 A JP S57112257A JP 18560880 A JP18560880 A JP 18560880A JP 18560880 A JP18560880 A JP 18560880A JP S57112257 A JPS57112257 A JP S57112257A
Authority
JP
Japan
Prior art keywords
paper
sheet
roller
roll
uppermost
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
JP18560880A
Other languages
Japanese (ja)
Inventor
Tamaki Kaneko
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 JP18560880A priority Critical patent/JPS57112257A/en
Publication of JPS57112257A publication Critical patent/JPS57112257A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the double feed of a sheet by moving a roller for passing a sheet and a frictonal member in opposite direction thereby feeding the excessive sheet to be double fed to a branch.
CONSTITUTION: A feed roller 9 and a frictional member 10 to be pressure contacted against the outer-circumferential face are arranged in the advancing direction of a paper roll. The feed roller 9 is rotated in the arrow direction (b) while the frictional member 10 is rotated in the arrow direction (c) with the speed slower than that of the feed roller 9. When a plurality of roll papers are fed simultaneously between the roller 9 and said member 10, the force is applied in the advancing direction on the uppermost roll paper from the roller 9, while the force is applied in the opposite direction on the lowermost paper from said member 10 to place the leading edge of the uppermost paper in front of that of the other roll paper, and the passing of the paper is detected by a sensor 15 then after passing predetermined time the roll paper except the uppermost one is fed by a branch member 13 to a tray 16.
COPYRIGHT: (C)1982,JPO&Japio
JP18560880A 1980-12-26 1980-12-26 Double feed preventer for sheet Pending JPS57112257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18560880A JPS57112257A (en) 1980-12-26 1980-12-26 Double feed preventer for sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18560880A JPS57112257A (en) 1980-12-26 1980-12-26 Double feed preventer for sheet

Publications (1)

Publication Number Publication Date
JPS57112257A true JPS57112257A (en) 1982-07-13

Family

ID=16173772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18560880A Pending JPS57112257A (en) 1980-12-26 1980-12-26 Double feed preventer for sheet

Country Status (1)

Country Link
JP (1) JPS57112257A (en)

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