GB1331457A - Ultrasonic detection circuit - Google Patents

Ultrasonic detection circuit

Info

Publication number
GB1331457A
GB1331457A GB6052570A GB6052570A GB1331457A GB 1331457 A GB1331457 A GB 1331457A GB 6052570 A GB6052570 A GB 6052570A GB 6052570 A GB6052570 A GB 6052570A GB 1331457 A GB1331457 A GB 1331457A
Authority
GB
United Kingdom
Prior art keywords
detection circuit
dec
predetermined time
ultrasonic detection
time sequence
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.)
Expired
Application number
GB6052570A
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.)
Xerox Corp
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Publication of GB1331457A publication Critical patent/GB1331457A/en
Expired 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
    • G03G15/70—Detecting malfunctions relating to paper handling, e.g. jams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L39/00—Indicating, counting, warning, control, or safety devices
    • B41L39/04—Tripping devices or stop motions
    • B41L39/14—Automatic control of tripping devices by feelers, photoelectric devices, pneumatic devices, or other detectors
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Controlling Sheets Or Webs (AREA)

Abstract

1331457 Electro-photographic apparatus XEROX CORP 21 Dec 1970 [24 Dec 1969 (2)] 60525/70 Heading G2H [Also in Divisions H3-H5] In an electrostatic copying machine a plurality of ultrasonic detectors is arranged along a path over which paper sheets are moved in a predetermined time sequence each detector comprising transmitter and receiver located on opposite sides of the path and timing means are provided for sensing departure of the detector signals from the predetermined time sequence. The invention is described with reference to the machine of Specification 1264406
GB6052570A 1969-12-24 1970-12-21 Ultrasonic detection circuit Expired GB1331457A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88795269A 1969-12-24 1969-12-24

Publications (1)

Publication Number Publication Date
GB1331457A true GB1331457A (en) 1973-09-26

Family

ID=25392206

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6052570A Expired GB1331457A (en) 1969-12-24 1970-12-21 Ultrasonic detection circuit

Country Status (2)

Country Link
US (1) US3603680A (en)
GB (1) GB1331457A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207754A (en) * 1987-08-05 1989-02-08 Eskofot As Ultrasound detector of thin films
US5480131A (en) * 1982-01-25 1996-01-02 Canon Kabushiki Kaisha Paper feeding device

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2008194C3 (en) * 1969-02-24 1974-01-24 Konishiroku Photo Industry Co., Ltd., Tokio Electrophotographic copier
US3709595A (en) * 1970-09-09 1973-01-09 Xerox Corp Printer system
US3778222A (en) * 1972-09-18 1973-12-11 Xerox Corp Fire prevention apparatus
US3819266A (en) * 1972-12-05 1974-06-25 Xerox Corp Copier jam protection
JPS5111452A (en) * 1974-07-19 1976-01-29 Ricoh Kk Teichakusochiniokeru hansokiko
US3920328A (en) * 1974-07-24 1975-11-18 Pitney Bowes Inc Adjustable paper jam responsive device for an electrostatic copier
US3966188A (en) * 1975-01-02 1976-06-29 Emerson Electric Co. Label transport
US4066969A (en) * 1975-09-22 1978-01-03 Eastman Kodak Company Multiple sheet detecting apparatus
US4022460A (en) * 1976-02-05 1977-05-10 Pitney-Bowes, Inc. Document jam detector for copier
JPS5395039A (en) * 1977-01-31 1978-08-19 Ricoh Co Ltd Both side copying method
US4168059A (en) * 1977-12-27 1979-09-18 Pitney-Bowes, Inc. Compensating means for adjusting the resetting of paper gate device
JPS54139738A (en) * 1978-04-21 1979-10-30 Ricoh Co Ltd Copying apparatus
US4268746A (en) * 1979-10-25 1981-05-19 Westinghouse Electric Corp. Document feed jam detector for a document reading apparatus
US4807868A (en) * 1982-09-21 1989-02-28 Xerox Corporation Sheet transport
US4513404A (en) * 1983-03-14 1985-04-23 Xerox Corporation Acoustic reflectometer for sheet feed sensing
US4533135A (en) * 1983-07-29 1985-08-06 Xerox Corporation Jammed sheet removal aid in a reproducing machine
US4800757A (en) * 1985-11-15 1989-01-31 Mitsubishi Denki Kabushiki Kaisha Ultrasonic dimension measuring apparatus
US4757471A (en) * 1987-04-01 1988-07-12 Kentek Information Systems, Inc. Electrographic printer/copier with photoconductive belt
US4850232A (en) * 1988-04-15 1989-07-25 Eastman Kodak Company System for measuring the dimensions of a workpiece
US4903953A (en) * 1988-04-20 1990-02-27 Brandt, Inc. Simplified currency dispenser
JP2705820B2 (en) * 1989-02-28 1998-01-28 キヤノン株式会社 Vibration wave motor device
US6507725B1 (en) 2001-08-17 2003-01-14 Xerox Corporation Sensor and associated method
JP3673777B2 (en) * 2001-08-21 2005-07-20 キヤノン株式会社 Signal output device, sheet material type discrimination device, and image forming device
US6983934B1 (en) * 2004-06-18 2006-01-10 Xerox Corporation Print media thickness measurement system
US20060244196A1 (en) * 2005-04-29 2006-11-02 Banctec, Inc. Multiple sheet detection system
US7266320B2 (en) * 2005-09-07 2007-09-04 Xerox Corporation Automated duplex printing of heavyweight sheets in special simplex mode
US7445205B2 (en) * 2006-01-06 2008-11-04 Xerox Corporation Automatically variably heated airflow for separation of humid coated paper print media
US8200140B2 (en) * 2009-04-16 2012-06-12 Xerox Corporation Modular printing system having a module with a bypass path
US8585050B2 (en) * 2011-12-06 2013-11-19 Eastman Kodak Company Combined ultrasonic-based multifeed detection system and sound-based damage detection system
JP5409857B1 (en) 2012-08-24 2014-02-05 株式会社Ｐｆｕ Image reading device
JP5340463B1 (en) 2012-08-24 2013-11-13 株式会社Ｐｆｕ Document feeder
JP5791575B2 (en) * 2012-08-28 2015-10-07 京セラドキュメントソリューションズ株式会社 Paper transport device, image forming device
JP5409860B1 (en) 2012-09-05 2014-02-05 株式会社Ｐｆｕ Document conveying apparatus, recovery method, and computer program
JP5409859B1 (en) 2012-09-05 2014-02-05 株式会社Ｐｆｕ Document conveying apparatus, recovery method, and computer program
JP5409866B1 (en) 2012-09-14 2014-02-05 株式会社Ｐｆｕ Document feeder
JP5409867B1 (en) * 2012-09-14 2014-02-05 株式会社Ｐｆｕ Document feeder, abnormality determination method, and computer program

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973202A (en) * 1958-09-29 1961-02-28 Pitney Bowes Inc Document feeding control means
DE1210601B (en) * 1960-08-15 1966-02-10 Standard Elektrik Lorenz Ag Photoelectric control device to recognize double draws
DE1179408B (en) * 1961-10-16 1964-10-08 Siemens Ag Feed and transport device for recording media
US3232606A (en) * 1964-03-27 1966-02-01 Eastman Kodak Co Film feeding arrangement
US3396965A (en) * 1966-10-11 1968-08-13 Xerox Corp Sensor gauge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5480131A (en) * 1982-01-25 1996-01-02 Canon Kabushiki Kaisha Paper feeding device
GB2207754A (en) * 1987-08-05 1989-02-08 Eskofot As Ultrasound detector of thin films
US5023846A (en) * 1987-08-05 1991-06-11 Eskofot A/S Ultrasonic detector for detecting a thin film
GB2207754B (en) * 1987-08-05 1991-10-09 Eskofot As Ultrasound detector of thin films

Also Published As

Publication number Publication date
US3603680A (en) 1971-09-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee