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Publication numberUS3883242 A
Publication typeGrant
Publication dateMay 13, 1975
Filing dateJul 23, 1973
Priority dateDec 29, 1970
Publication numberUS 3883242 A, US 3883242A, US-A-3883242, US3883242 A, US3883242A
InventorsIsao Takahashi, Motoharu Fujii, Kazuo Kawakubo, Masao Ariga, Susumu Sugiura
Original AssigneeCanon Kk
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electronic photographic copying machine
US 3883242 A
An electrophotographic copying machine including a repetitively usable photosensitive member removably mounted in the machine and having a plurality of image processing elements including an image transfer device disposed around the photosensitive member. The photosensitive member is mounted within a first body portion of the machine, while the transfer device is mounted in a removable second body portion of the machine, whereby the photosensitive member is accessible for removal when the two body portions are separated.
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Description  (OCR text may contain errors)

United States Patent Takahashi et al.

[451 May 13, 1975 [54] ELECTRONIC PHOTOGRAPHIC COPYING 3.490342 1/1970 Reick et a1 355/10 3.575506 4/1971 Knechtel r. 355/16 MACHINE 3,600,082 8/l97l Knechtel r r r i r 355/8 [75] Inventors: lsao T ka hi. Yokohama; 1604,79? 9/1971 Szczesniak 355/16 Motoharu Fujii, Tokyo; Kazuo 1770.345 11/1973 Kawakubo et a1. 355/] R Kawakubo, Tokyo: Masao Ariga. T r t Y; Li 3 i:i guglura 1 O PI'HHUI Exammcr]hn M. Horan Allurnry. Agent. or FirmFitzpatrick, Cella. Harper {73] Assignee: Canon Kabushiki Kaisha. Tokyo, & s im Japan [22] Filed: July 23, I973 [57] ABSTRACT [2]] Appl. No.; 381,399

Related US. Application Data An ele ctrophotographic copying machine including a 2 {S N H 276 D 23 971 repetitively usable photosensitive member removably [6 Dwlslono mounted in the machine and having a plurality of image processing elements including an image transfer [30] Forelgn Apphcauon Prmnty Dam device disposed around the photosensitive member Japan The photosensitive member is mounted within a first body portion of the machine, while the transfer device [52] U.S. Cl .i 355/3 R is mounted i a removaue Second body portion f the H 1 Cl 8 /00 machine, whereby the photosensitive member is ac- [58] new of Search 355/3 14 cessible for removal when the two body portions are separated. [56] References Cited UNITED STATES PATENTS 1 Claim, Drawing Figures 3,088,386 S/l963 Sugarman 355/ll 7 85 86 a 83 5 O O I 46 98 97 8481 8 94 78 P 79 O z 7 -96 ll 37 I2 0 38 2 9 L 9 921 92 39 4 4F I I 4 i7 1\ t (.JENTEJWIWQE} 3.883.242

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FIG. 8

FIG. 6

PATENTEB rm 1 ms SHEET 68 HF 19 FIG. ll



Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3088386 *Nov 16, 1959May 7, 1963American Photocopy Equip CoElectrophotographic photocopy machine
US3490842 *Oct 18, 1966Jan 20, 1970Sunbeam Business Equipment CoElectrophotostatic copying machine
US3575506 *Oct 21, 1968Apr 20, 1971Singer CoCopying apparatus
US3600082 *Apr 30, 1969Aug 17, 1971Singer CoCopying apparatus
US3604797 *Jan 21, 1969Sep 14, 1971Addressograph MultigraphPhotoelectrostatic duplicator
US3770345 *Mar 17, 1970Nov 6, 1973Canon KkElectrophotographic copying apparatus
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3966316 *Jul 24, 1975Jun 29, 1976Agfa-Gevaert, A.G.Electrostatic copying machine with removable copying drum
US3998548 *Aug 7, 1975Dec 21, 1976Fuji Xerox Co., Ltd.Sensitive drum receiving device for use in electrophotographic reproducing machine
US4030824 *Nov 3, 1975Jun 21, 1977Xerox CorporationReproducing apparatus having an improved imaging surface cleaning system
US4039257 *Jul 25, 1974Aug 2, 1977Xerox CorporationPretransfer corotron switching
US4165069 *Aug 1, 1977Aug 21, 1979International Business Machines CorporationCopier having removable paper feed module
US4185907 *Oct 17, 1977Jan 29, 1980Siemens AktiengesellschaftSupport assembly for components of electrostatic copiers
US4271784 *Aug 29, 1979Jun 9, 1981Olympus Optical Co., Ltd.Apparatus for discharging a fatigued developing agent in a magnetic brush developing device
US4277164 *Jul 16, 1979Jul 7, 1981Olympia Werke AgPhotocopier photoconductive sheet holding device
US4462677 *May 25, 1982Jul 31, 1984Canon Kabushiki KaishaImage formation apparatus using a process unit with a protective cover
US4470689 *May 25, 1982Sep 11, 1984Canon Kabushiki KaishaImage forming apparatus and process unit
US4569582 *Mar 28, 1984Feb 11, 1986Mercante International A/SProcessing stations for an electrophotographic information printer
US4605215 *Oct 19, 1984Aug 12, 1986Mercante International A/SProcessing station for an electrophotographic information printer
US4798373 *Nov 25, 1985Jan 17, 1989Mercante International A/S Af 1986Sheet feeding device for use in an electrophotographic information printer
US5051778 *Dec 15, 1989Sep 24, 1991Shindengen Electric Manufacturing Co., Ltd.Electrophotographic copying machine which integrates components having substantially equal service lives into respective detachable units formed of a developing unit, a photoreceptor unit and a toner cartridge unit
US5073795 *Jun 26, 1990Dec 17, 1991Ricoh Company, Ltd.Electrophotography type image forming apparatus having improved exchanging kit
US5169141 *Sep 6, 1991Dec 8, 1992Xerox CorporationFloating transfer module mounting
US5210576 *Apr 2, 1992May 11, 1993Konica CorporationImage forming apparatus having a first mode for forming a multicolor image of restricted length and a second mode for forming a monocolor image of unrestricted length
US6144823 *May 17, 1999Nov 7, 2000Canon Kabushiki KaishaImage processing apparatus having a reading apparatus
US6343137 *Oct 12, 1995Jan 29, 2002Canon Kabushiki KaishaMethod of processing an image such as a still image
EP0163486A2 *May 22, 1985Dec 4, 1985Xerox CorporationRemovable processing cartridge for electrostatographic reproducing apparatus
EP0602016A2 *May 9, 1990Jun 15, 1994Konica CorporationColor image forming apparatus
WO1984003972A1 *Mar 28, 1984Oct 11, 1984Mercante Int AsAn electrophotographic information printer
U.S. Classification399/125
International ClassificationG03G15/30, G03G21/18
Cooperative ClassificationG03G2215/0678, G03G2215/0673, G03G2221/163, G03G21/1814, G03G2215/0685, G03G2221/1654, G03G2221/1657, G03G2221/1687, G03G21/1623, G03G2221/1675, G03G15/30
European ClassificationG03G15/30, G03G21/18C3