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GB1168111A - Copying and Reproducing Apparatus - Google Patents

Copying and Reproducing Apparatus

Info

Publication number
GB1168111A
GB1168111A GB2846/67A GB284667A GB1168111A GB 1168111 A GB1168111 A GB 1168111A GB 2846/67 A GB2846/67 A GB 2846/67A GB 284667 A GB284667 A GB 284667A GB 1168111 A GB1168111 A GB 1168111A
Authority
GB
United Kingdom
Prior art keywords
photo
cell
strip
scan
electric
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
GB2846/67A
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.)
Institute for Scientific Information Inc
Original Assignee
Institute for Scientific Information Inc
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 Institute for Scientific Information Inc filed Critical Institute for Scientific Information Inc
Publication of GB1168111A publication Critical patent/GB1168111A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • H04N1/0607—Scanning a concave surface, e.g. with internal drum type scanners
    • H04N1/0621—Scanning a concave surface, e.g. with internal drum type scanners using a picture-bearing surface stationary in the main-scanning direction
    • H04N1/0628—Scanning a concave surface, e.g. with internal drum type scanners using a picture-bearing surface stationary in the main-scanning direction using several scanning heads circumferentially spaced from one another and circumferentially aligned, e.g. mounted on a rotating disk
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/047—Detection, control or error compensation of scanning velocity or position
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • H04N1/0664—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface with sub-scanning by translational movement of the picture-bearing surface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • H04N1/0607—Scanning a concave surface, e.g. with internal drum type scanners
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
    • H04N1/107—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces with manual scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02406—Arrangements for positioning elements within a head
    • H04N2201/02439—Positioning method
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/028—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted for picture information pick-up
    • H04N2201/03—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted for picture information pick-up deleted
    • H04N2201/031—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted for picture information pick-up deleted deleted
    • H04N2201/03104—Integral pick-up heads, i.e. self-contained heads whose basic elements are a light source, a lens and a photodetector supported by a single-piece frame
    • H04N2201/03108—Components of integral heads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/0471—Detection of scanning velocity or position using dedicated detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04715—Detection of scanning velocity or position by detecting marks or the like, e.g. slits
    • H04N2201/04724—Detection of scanning velocity or position by detecting marks or the like, e.g. slits on a separate encoder wheel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04731—Detection of scanning velocity or position in the sub-scan direction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04732—Detecting at infrequent intervals, e.g. once or twice per line for main-scan control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04734—Detecting at frequent intervals, e.g. once per line for sub-scan control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04739—Detection of scanning velocity or position by detecting the scanning head or scanning carriage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04753—Control or error compensation of scanning position or velocity
    • H04N2201/04756—Control or error compensation of scanning position or velocity by controlling the position or movement of the sheet, the sheet support or the photoconductive surface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04753—Control or error compensation of scanning position or velocity
    • H04N2201/04791—Control or error compensation of scanning position or velocity in the sub-scan direction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04753—Control or error compensation of scanning position or velocity
    • H04N2201/04794—Varying the control or compensation during the scan, e.g. using continuous feedback or from line to line

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

1,168,111. Electric synchronizing. INSTITUTE FOR SCIENTIFIC INFORMATION. 19 Jan., 1967 [21 March, 1966], No. 2846/67. Heading H2L. [Also in Division H4] A document to be copied is scanned linewise by a photo-electric strip element 30, Fig. 1, which is moved down the document by hand to introduce the other component of scan, the resulting electric signals being applied to a xerographic recorder 14 in which the recording strip 50 is caused to move in synchronism with the movements imparted to element 30. A rotatable apertured drum is mounted on the side of the housing for element 30 so as to engage the document and co-operates with a lamp (not shown) and a photo-cell 82 to generate pulses representing by their number the distance moved. The recording strip is moved by a motor 66 whilst a similar drum and photo-cell assembly 92, 98 produces pulses representing the strip movement. The pulses from photo-cell 82 drive an up-down bit counter 88, Fig. 2, in one direction, whilst the pulses from photo-cell 98 drive the counter in the reverse direction back to zero. Departure of the count from zero is detected by threshold logic 90 which controls motor 66. The photo. electric element comprises a known assembly of a photo-sensitive strip and a linear array of biased diodes. The arrangement is controlled by a ramp or staircase generator 34 which brings the diodes into conduction in sequence thereby simultating a line scan. The line scan in the xerographic recorder is effected by an electrode wheel assembly 44 which rotates in a direction transverse the direction of movement of strip 50. Each electrode is in the form of a spoke which terminates at the wheel rim and co-operates with an earthed plate 42 to lay down charges on the strip. Signals are applied to the electrodes via brush 38 bearing on the wheel hub. Commencement of line scan by the operative electrode is detected by a photo-cell 122 when the spoke interrupts the light beam from lamp 118. The photo-cell triggers generator 34 by way of a NOR gate 116 which is controlled as shown in Fig. 2, by a signal from a NAND gate 112 which in turn receives signals from flip-flops 110 and 114 triggered at each pulse from photo-cells 82 and 98. The circuit operates to synchronize the line scan in photo-electric element 30 to the recording electrode scan such that one scan only is made in response to each incremental movement which gives rise to a pulse from photo-cell 82. The recording is developed in known manner by apparatus 52. Photo-electric element 30 is exposed to the document through a slit 81, the housing having also an opening so that the user may see what is being copied.
GB2846/67A 1966-03-21 1967-01-19 Copying and Reproducing Apparatus Expired GB1168111A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US536077A US3346692A (en) 1966-03-21 1966-03-21 Copying apparatus having a hand-held scanner synchronized to the recording unit

Publications (1)

Publication Number Publication Date
GB1168111A true GB1168111A (en) 1969-10-22

Family

ID=24137043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2846/67A Expired GB1168111A (en) 1966-03-21 1967-01-19 Copying and Reproducing Apparatus

Country Status (3)

Country Link
US (1) US3346692A (en)
DE (1) DE1512253B2 (en)
GB (1) GB1168111A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541248A (en) * 1967-09-29 1970-11-17 Xerox Corp Document abstractor with hand-held optical scanner with constant resolution scanning
FR2227700A1 (en) * 1973-04-27 1974-11-22 Anvar
GB1446403A (en) * 1974-09-13 1976-08-18 Mullard Ltd Scanning systems circuit block for an electronic watch
US4196450A (en) * 1977-01-18 1980-04-01 Datacopy Corporation Selective copying apparatus
US4100571A (en) * 1977-02-03 1978-07-11 The United States Of America As Represented By The Secretary Of The Navy 360° Non-programmed visual system
FR2402982A1 (en) * 1977-09-09 1979-04-06 Thomson Csf OPTO-ELECTRONIC DOCUMENT ANALYSIS DEVICE, AND FACSIMILE TRANSMISSION SYSTEM USING SUCH A DEVICE
EP0044297B1 (en) * 1980-01-15 1987-04-08 Datacopy Corporation Selective copying apparatus
JPS59230362A (en) * 1983-06-13 1984-12-24 Nippon Kogaku Kk <Nikon> copy device
US4684998A (en) * 1983-06-15 1987-08-04 Canon Kabushiki Kaisha Image reader suitable for manual scanning
JPS60237755A (en) * 1984-05-11 1985-11-26 Nippon Kogaku Kk <Nikon> Image reading and recording device
USD305539S (en) 1986-10-23 1990-01-16 Sharp Corporation Reader for hand copying machine
US4793812A (en) * 1987-10-05 1988-12-27 Xerox Corporation Hand held optical scanner for omni-font character recognition
US6445813B1 (en) 1994-08-24 2002-09-03 Matsushita Electric Industrial Co., Ltd. System for inspecting an apparatus of a printed circuit board
JPH0865000A (en) * 1994-08-24 1996-03-08 Matsushita Electric Ind Co Ltd Printed circuit board visual inspection device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL26557C (en) * 1927-08-13
US2616983A (en) * 1949-01-03 1952-11-04 Rca Corp Apparatus for indicia recognition
US2910339A (en) * 1957-06-19 1959-10-27 Pan American Petroleum Corp Electrographic recording apparatus

Also Published As

Publication number Publication date
DE1512253B2 (en) 1970-05-21
US3346692A (en) 1967-10-10
DE1512253A1 (en) 1969-09-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE Patent expired