EP0606757B1 - Elektrophotographischer Apparat für die gleichzeitige Durchführung der bildmassigen Beleuchtung und der Entwicklung - Google Patents

Elektrophotographischer Apparat für die gleichzeitige Durchführung der bildmassigen Beleuchtung und der Entwicklung Download PDF

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Publication number
EP0606757B1
EP0606757B1 EP19930310473 EP93310473A EP0606757B1 EP 0606757 B1 EP0606757 B1 EP 0606757B1 EP 19930310473 EP19930310473 EP 19930310473 EP 93310473 A EP93310473 A EP 93310473A EP 0606757 B1 EP0606757 B1 EP 0606757B1
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EP
European Patent Office
Prior art keywords
layer
photosensitive body
conductive
toner
photosensitive member
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 - Lifetime
Application number
EP19930310473
Other languages
English (en)
French (fr)
Other versions
EP0606757A1 (de
Inventor
Hideyuki C/O Canon Kabushiki Kaisha Yano
Junji C/O Canon Kabushiki Kaisha Araya
Yukihiro C/O Canon Kabushiki Kaisha Ozeki
Harumi C/O Canon Kabushiki Kaisha Kugo
Katsuhiro C/O Canon Kabushiki Kaisha Sakaizawa
Tadashi C/O Canon Kabushiki Kaisha Furuya
Osamu C/O Canon Kabushiki Kaisha Iwasaki
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.)
Canon Inc
Original Assignee
Canon 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
Priority claimed from JP4359311A external-priority patent/JPH06202412A/ja
Priority claimed from JP4359310A external-priority patent/JP2862450B2/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of EP0606757A1 publication Critical patent/EP0606757A1/de
Application granted granted Critical
Publication of EP0606757B1 publication Critical patent/EP0606757B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/34—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner
    • G03G15/344—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner by selectively transferring the powder to the recording medium, e.g. by using a LED array
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/10—Bases for charge-receiving or other layers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/10—Bases for charge-receiving or other layers
    • G03G5/104—Bases for charge-receiving or other layers comprising inorganic material other than metals, e.g. salts, oxides, carbon
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/14—Inert intermediate or cover layers for charge-receiving layers
    • G03G5/147—Cover layers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/14—Inert intermediate or cover layers for charge-receiving layers
    • G03G5/147—Cover layers
    • G03G5/14704—Cover layers comprising inorganic material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/04—Arrangements for exposing and producing an image
    • G03G2215/0497—Exposure from behind the image carrying surface
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/14—Inert intermediate or cover layers for charge-receiving layers
    • G03G5/147—Cover layers
    • G03G5/14708—Cover layers comprising organic material
    • G03G5/14713—Macromolecular material
    • G03G5/14747—Macromolecular material obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G5/14769—Other polycondensates comprising nitrogen atoms with or without oxygen atoms in the main chain

Definitions

  • a typical image forming apparatus has a photosensitive body and devices for image formation arranged around the photosensitive body. More specifically, around the photosensitive body, there are provided a charger device, an exposure device, a developer device, a transfer device, a cleaning device, and so on.
  • the image forming process by the electrophotographic method requires many devices. So, the apparatus therefor tends to be of a large size and complicated. It is not easy to miniaturize and simplify the apparatus.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)

Claims (9)

  1. Elektrophotographisches Gerät mit:
    einem elektrophotographischen photosensitiven Element mit einem lichtdurchlässigen Substrat (11), das bei einem zunehmenden Abstand von dem Substrat eine leitfähige Lage (12), eine photosensitive Lage aus einem organischen photoleitfähigen Material und eine Lage (16) für ein Zuführen einer elektrischen Aufladung mit in einem Isolationsbinder dispergiertem leitfähigen Pulver trägt;
    einer Belichtungseinrichtung (3) zum Belichten des photosensitiven Elementes mit einem Lichtbild von einer Seite des lichtdurchlässigen Substrates (11); und
    einer Entwicklungseinrichtung, die sich an der anderen Seite des Substrates (11) an einer Position entsprechend einer Belichtungsposition des photosensitiven Elementes (1) durch die Belichtungseinrichtung (3) befindet, wobei die Entwicklungseinrichtung dem Ausbilden einer magnetischen Bürste eines leitfähigen Entwicklers, der mit der Lage (16) für die Zuführung der Ladung benachbart zu der Belichtungsposition in Kontakt bringbar ist, und einem Zuführen einer elektrischen Aufladung zu der Lage (16) für eine Zuführung der Aufladung über die magnetische Bürste stromaufwärtig von der Belichtungsposition in Bezug auf eine Bewegungsrichtung des photosensitiven Elementes dient,
    dadurch gekennzeichnet, dass
    die Belichtungsposition des photosensitiven Elementes (1) sich stromabwärtig von einer mittleren Position in einem Bereich befindet, an dem die magnetische Bürste mit dem photosensitiven Element in Kontakt steht.
  2. Gerät gemäß Anspruch 1, wobei
    das lichtdurchlässige Substrat (11) eine zylindrische Form hat und die Belichtungseinrichtung (3) im Inneren des Substrates (11) angeordnet ist.
  3. Gerät gemäß Anspruch 1 oder 2, wobei
    die leitfähige Lage (12) aus Indiumzinnoxid besteht.
  4. Gerät gemäß Anspruch 3, wobei
    das photosensitive Element zwischen der leitfähigen Lage (12) und der photosensitiven Lage eine nicht aufladbare Lage (13) trägt, die ein Fließen einer elektrischen Aufladung von der leitfähigen Lage (12) verhindert.
  5. Gerät gemäß Anspruch 4, wobei
    die photosensitive Lage eine das organische Photoleitmaterial enthaltende Ladungserzeugungslage (14) und eine Ladungsübertragungslage (15) geschichtet in jeder Abfolge aufweist.
  6. Gerät gemäß einem der vorherigen Ansprüche, wobei
    die leitfähigen Partikel der Lage (16) für die Zuführung der Aufladung Farbpartikel sind, die in dem Binder dispergiert sind, um das photosensitive Element vor Licht abzuschirmen.
  7. Gerät gemäß einem der vorherigen Ansprüche, das des Weiteren einen Toner aus zwei Komponenten aufweist, der leitfähige Trägerpartikel und Isolationstonerpartikel aufweist.
  8. Verfahren zum Erzeugen eines elektrophotographischen Bildes mit den Schritten:
    Belichten des elektrophotographischen photosensitiven Elementes von einem Gerät gemäß einem der Ansprüche 1 bis 7 mit Licht und
    Entwickeln des sich ergebenden Bildes mit einem Toner.
  9. Verfahren gemäß Anspruch 8, das des Weiteren den folgenden Schritt aufweist:
    Übertragen des entwickelten Bildes auf ein Aufzeichnungsmedium.
EP19930310473 1992-12-26 1993-12-23 Elektrophotographischer Apparat für die gleichzeitige Durchführung der bildmassigen Beleuchtung und der Entwicklung Expired - Lifetime EP0606757B1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP35931192 1992-12-26
JP4359311A JPH06202412A (ja) 1992-12-26 1992-12-26 画像形成装置
JP359310/92 1992-12-26
JP4359310A JP2862450B2 (ja) 1992-12-26 1992-12-26 画像形成装置
JP35931092 1992-12-26
JP359311/92 1992-12-26

Publications (2)

Publication Number Publication Date
EP0606757A1 EP0606757A1 (de) 1994-07-20
EP0606757B1 true EP0606757B1 (de) 2000-06-07

Family

ID=26580945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930310473 Expired - Lifetime EP0606757B1 (de) 1992-12-26 1993-12-23 Elektrophotographischer Apparat für die gleichzeitige Durchführung der bildmassigen Beleuchtung und der Entwicklung

Country Status (2)

Country Link
EP (1) EP0606757B1 (de)
DE (1) DE69328820T2 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58107554A (ja) * 1981-12-22 1983-06-27 Fuji Xerox Co Ltd 画像形成方法
JPS58153957A (ja) * 1982-03-10 1983-09-13 Nippon Telegr & Teleph Corp <Ntt> 画像記録方法および装置
JPS6391667A (ja) * 1986-10-06 1988-04-22 Seiko Epson Corp 電子写真感光体
DE69113529T2 (de) * 1990-07-02 1996-04-11 Canon Kk Element für die Bildherstellung.

Also Published As

Publication number Publication date
EP0606757A1 (de) 1994-07-20
DE69328820T2 (de) 2000-11-09
DE69328820D1 (de) 2000-07-13

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