DE2166948C3 - Corona discharger with a shield case - Google Patents
Corona discharger with a shield caseInfo
- Publication number
- DE2166948C3 DE2166948C3 DE2166948A DE2166948A DE2166948C3 DE 2166948 C3 DE2166948 C3 DE 2166948C3 DE 2166948 A DE2166948 A DE 2166948A DE 2166948 A DE2166948 A DE 2166948A DE 2166948 C3 DE2166948 C3 DE 2166948C3
- Authority
- DE
- Germany
- Prior art keywords
- corona discharger
- discharge
- discharge wire
- corona
- shielding housing
- 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
Links
Classifications
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- 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
- G03G15/28—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 projection is obtained by line scanning
- G03G15/30—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 projection is obtained by line scanning in which projection is formed on a drum
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1604—Arrangement or disposition of the entire apparatus
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1604—Arrangement or disposition of the entire apparatus
- G03G21/1623—Means to access the interior of the apparatus
- G03G21/1628—Clamshell type
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1642—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
- G03G21/1647—Mechanical connection means
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1606—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the photosensitive element
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1618—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the cleaning unit
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1618—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the cleaning unit
- G03G2221/1624—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the cleaning unit transporting cleaned toner into separate vessels, e.g. photoreceptors, external containers
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/163—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the developer unit
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1636—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the exposure unit
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
- G03G2221/1654—Locks and means for positioning or alignment
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
- G03G2221/1657—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts transmitting mechanical drive power
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1672—Paper handling
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/18—Cartridge systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cleaning In Electrography (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Dry Development In Electrophotography (AREA)
- Electrophotography Configuration And Component (AREA)
- Fixing For Electrophotography (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Description
Die Erfindung bezieht sich auf einen Koronaentlader gemäß dem Oberbegriff des Patentanspruchs.The invention relates to a corona discharger according to the preamble of the patent claim.
Bei einem in der US-PS 29 22 883 beschriebenen bekannten Koronaentlader dieser Art ist ein Halteningsrahmen vorgesehen, in den drei Entladungsdrähte über Spannfedern eingespannt sind. Dieser Halterungsrahmen ist nun seinerseits zwischen Seitenwänden des Abschirmgehäuses befestigt, und zwar mittels Befestigungsschrauben, die durch Schlitze in den Seitenwänden hindurchgreifen. Zur Einstellung des Abstandes zwischen den Entladungsdrähten und einem an ihnen vorbeigeführten blattförmigen Material müssen sämtliche Befestigungsschrauben gelöst, der Halterungsrahmen anschließend entsprechend justiert und die Befestigungsschrauben sodann wieder angezogen werden. Diese Art der Einstellung ist zeitraubend und aufwendig und erlaubt keine Feinjustierung.In a known corona discharger of this type described in US Pat. No. 2,922,883, a retaining ring frame is used provided, in which three discharge wires are clamped via tension springs. This mounting frame is now in turn fastened between the side walls of the shielding housing, by means of fastening screws, which reach through slots in the side walls. To set the distance between the discharge wires and a sheet-like material guided past them must all Loosened the fastening screws, then adjusted the mounting frame accordingly and the Fixing screws are then tightened again. This type of setting is time consuming and complex and does not allow fine adjustment.
Aus der US-PS 28 82 412 ist es bekannt, bei einem Koronaentlader den Abstand einer stangenförmigen Elektrodenanordnung zu einer gegenüberliegend angeordneten geerdeten Walze über zwei Winkeleisen einzustellen, die jeweils über eine Stell- und Befestigungsschraubenanordnung mit einer Halterung verbunden sind. Die Abstandseinstellung erfolgt, indem zunächst an jedem Winkeleisen zwei Befestigungsschrauben gelöst und sodann zwei Stellschrauben zur Erzielung einer Stellbewegung des jeweiligen Winkeleisens entsprechend verstellt werden, woraufhin die Befestigungsschrauben wieder angezogen werden müssen. Allein zur Vornahme dieser Abstandsjustierung der Elektrodenanordnung sind somit acht Schrauben, nämlich jeweils vier in jedem Winkeleisen erforderlich. Insbesondere müssen die Stellschrauben für die Abstandseinstellung genau parallel ausgerichtet werden, was ohne Zurhilfenahme weiterer Hilfsmittel wie etwa sogenannter Libellen zur Niveaueinstellung kaum möglich ist Schließlich kann die gesamte Einstellung nur im eingebauten Zustand des Koronaentladers im Gerät vorgenommen werden, was die ohnehin beschwerlichen und zeitraubenden Einstellmaßnahmen weiter verkompliziert From US-PS 28 82 412 it is known, in a corona discharger, the distance of a rod-shaped Electrode arrangement to an oppositely arranged grounded roller over two angle irons set, each connected to a bracket via an adjusting and fastening screw arrangement are. The distance is adjusted by first attaching two fastening screws to each angle iron loosened and then two adjusting screws to achieve an adjusting movement of the respective angle iron adjusted accordingly, whereupon the fastening screws have to be tightened again. Eight screws are therefore required to carry out this distance adjustment of the electrode arrangement alone. namely four required in each angle iron. In particular, the adjusting screws for the Distance adjustment can be aligned exactly parallel, which can be done without the aid of other aids such as for example so-called dragonflies for level adjustment is hardly possible. Finally, the entire adjustment can only can be made in the built-in state of the corona discharger in the device, which is troublesome anyway and time-consuming adjustment measures are further complicated
Der Erfindung liegt die Aufgabe zugrunde, einen Koronaentlader gemäß dem Oberbegriff des Patentanspruchs derart weiterzubilden, daß der Abstand zwischen dem Entladungsdraht und der der Koronaentladung auszusetzenden Fläche auf einfache Weise sehr fein justiert werden kann.The invention is based on the object of a corona discharger according to the preamble of the patent claim to develop in such a way that the distance between the discharge wire and that of the corona discharge exposed surface can be adjusted very finely in a simple manner.
Diese Aufgabe wird erfindungsgemäß mit den im kennzeichnenden Teil des Patentanspruchs angegebenen Mitteln gelöstAccording to the invention, this object is given in the characterizing part of the claim Funds resolved
Erfindungsgemäß wird also von dem bekannter. Prinzip, den federgespannten Elektrodendraht in einen Hakerungsrahmen einzuspannen und diesen Rahmen justierbar im Abschirmgehäuse zu befestigen, abgegangen und nur das für die Koronaentladung wirksame Elektrodendrahtstück justiert welches unter der Wirkung der Spannfeder an die Stütz- und Führungseinrichtung angedrückt wird Durch dieses Zusammenwirken von Spannfeder und Stütz- und Führungseinrichtung erübrigt sich das nach dem Stand der Technik erforderliche Befestigen der Elektrodendrahthalterung nach dem Justieren. Beim Verstellen der Stütz- und Führungseinrichtung durch die Stellschraubenanordnung wird das wirksame Elektrodendrahtstück mehr oder weniger stark ausgelenkt wobei der Elektrodendraht durch die Spannfeder praktisch unabhängig vonAccording to the invention is therefore known from the. Principle, the spring-tensioned electrode wire in one To clamp the hooking frame and to fasten this frame in an adjustable manner in the shielding housing, departed and only the piece of electrode wire effective for the corona discharge adjusts which one under the action the tension spring is pressed against the support and guide device by this interaction of tension spring and support and guide device is unnecessary according to the prior art required fastening of the electrode wire holder after adjustment. When adjusting the support and Guide device through the set screw arrangement, the more effective electrode wire piece or less strongly deflected whereby the electrode wire is practically independent of the tension spring
2n dem Maße des Auslenkens unter der gewünschten Spannung gehalten wird. Die Spannfeder dient also nicht nur zum Spannen des Elektrodendrahts, sondern zugleich dazu, eine gewisse Verlängerung der Einheit aus Elektrodendraht und Spannfeder zu Justierzwecken2n the amount of deflection is kept under the desired tension. So the tension spring is used not only for tensioning the electrode wire, but also for a certain extension of the unit made of electrode wire and tension spring for adjustment purposes
2") zu ermöglichen, ohne daß die Gefahr besteht, daß der Elektrodendraht reißt2 ") without the risk of the Electrode wire breaks
Ein weiterer Vorteil des erfindungsgemäßen Koronaentladers liegt darin, daß er beispielsweise bei seiner Anwendung in einem Kopiergerät nach Art einerAnother advantage of the corona discharger according to the invention is that it is, for example, in his Application in a copier like a
Jd Kassette in das Gerät einschiebbar und aus dem Gerät heraus ziehbar ausgebildet und mit einem fest am Abschirmgehäuse montierten Anschlußstift versehen sein kann. Dies wird dadurch möglich, daß beim erforderlichen Justieren lediglich auf den Entladungs-Jd cassette can be pushed into and out of the device designed to be pulled out and provided with a terminal pin fixedly mounted on the shielding housing can be. This is made possible by the fact that when adjustments are required, only the discharge
ü draht eingewirkt wird.ü wire is acted upon.
Die Erfindung wird nachstehend anhand der Beschreibung eines Ausführungsbeispiels unter Bezugnahme
auf die Zeichnung näher erläutert. Es zeigt
F i g. 1 einen Längsschnitt eines Kopiergeräts,The invention is explained in more detail below on the basis of the description of an exemplary embodiment with reference to the drawing. It shows
F i g. 1 shows a longitudinal section of a copier,
w F i g. 2 einen Längsschnitt eines Koronaentladers,
F i g. 3 eine Draufsicht des Koronaentladers und
F i g. 4 einen Schnitt desselben.
Das in F i g. 1 dargestellte elektrofotografische Kopiergerät arbeitet mit einer Trommel 2, auf der ein w F i g. 2 a longitudinal section of a corona discharger,
F i g. 3 is a plan view of the corona discharger and FIG
F i g. 4 shows a section of the same.
The in Fig. 1 illustrated electrophotographic copier operates with a drum 2 on which a
« elektrofotografisches Aufzeichnungsmaterial 1 angeordnet ist. Am Umfang der Trommel 2 sind die für das elektrofotografische Verfahren erforderlichen Einrichtungen, nämlich ein erster Koronaentlader 4, ein Koronaentlader 5, durch den hindurch die bildmäßige Belichtung des Aufzeichnungsmaterials erfolgt, eine Totalbelichtungseinrichtung 6, eine Entwicklungseinrichtung 7, ein dritter Koronaentlader 8, eine Bildübertragungseinrichtung 9 und eine Reinigungseinrichtung 10 in der angegebenen Reihenfolge angeordnet Eine ins Einzelne gehende Beschreibung der Funktionen dieser Einrichtungen erübrigt sich, da mit Bildübertragung arbeitende elektrofotografische Kopiergeräte dieser Art bekannt sind.«Electrophotographic recording material 1 is arranged. On the circumference of the drum 2 are the devices required for the electrophotographic process, namely a first corona discharger 4, a corona discharger 5 through which the image-wise exposure of the recording material takes place, a total exposure device 6, a developing device 7, a third corona discharger 8, an image transfer device 9 and a cleaning device 10 arranged in the specified order. A detailed description of the functions of these devices is unnecessary, since electrophotographic copiers of this type employing image transfer are known.
Das Kopiergerät enthält also drei Koronaentlader, deren Konstruktion im einzelnen anhand der F i g. 2 bis 4 beschrieben wird. Der Koronaentlader enthält Entladungsdrähte 400, Abschirmplatten 401 und isolierende Halterungen 402,403. Die isolierenden Halterungen 402,403 sind an den Enden der Abschirmplatten 401 befestigt. An der Halterung 403 ist ein Anschluß 404 für die Verbindung mit einer Hochspannungsquelle im Gerätegehäuse angebracht. An der Halterung 402 ist ein Griffknopf 405 befestigt. Mittels Stellschrauben 408,409 The copier thus contains three corona dischargers, the construction of which is shown in detail with reference to FIGS. 2 to 4 will be described. The corona discharger includes discharge wires 400, shield plates 401 and insulating brackets 402, 403. The insulating brackets 402, 403 are attached to the ends of the shield plates 401 . A connection 404 for connection to a high-voltage source in the device housing is attached to the holder 403. A handle button 405 is attached to the holder 402. By means of adjusting screws 408,409
sind an den isolierenden Halterungen 402, 403 verstellbare Stütz- und Führungsteile 406, 407 zum Einstellen der Lage der Entladungsdrähte 400 gehalten. Durch Verdrehen der Stellschrauben 408, 409 lassen sich die Stütz- und Führungsteile 406,407 *5enkrecht zum ··■ Aufzeichnungsmaterial bewegen, um damit den günstigsten Abstand zwischen dem Aufzeichnungsmaterial und den Entladungsdrähten 400 einzustellen. Das Stütz- und Führungsteil 407 ist mit Kerben 410 zur Aufnahme der Entladungsdrähte 400 versehen, um deren gegenseitigen Abstand innerhalb der Abschirmplatten 401 zu gewährleisten. Die Entladungsdrähte 400 sind mit jeweils einem Ende mittels Schrauben 411 an der isolierenden Halterung 402 befestigt. Die anderen Enden der Entladungsdrähte 400 sind durch die am Stütz- und r> Führungsteil 407 gebildeten Kerben 410 geführt, um Stifte 412 geschlungen, durch einen Schlitz 413 in der Halterung 403 geführt und an einem Zugstift 415 befestigt Der Zugstift 415 ist durch eine Feder 414 nach links belastet und elektrisch leitend mit dem Anschluß 404 verbunden.Adjustable support and guide parts 406, 407 for adjusting the position of the discharge wires 400 are held on the insulating holders 402, 403. By turning the adjusting screws 408, 409, the support and guide parts 406, 407 * 5 can be moved perpendicular to the recording material in order to set the most favorable distance between the recording material and the discharge wires 400. The support and guide part 407 is provided with notches 410 for receiving the discharge wires 400 in order to ensure their mutual spacing within the shielding plates 401. The discharge wires 400 are each fastened with one end to the insulating holder 402 by means of screws 411. The other ends of the discharge wires 400 are passed through the notches 410 formed on the support and guide part 407, looped around pins 412, passed through a slot 413 in the holder 403 and attached to a tension pin 415. The tension pin 415 is by a spring 414 loaded to the left and connected to terminal 404 in an electrically conductive manner.
Beim Zerreißen der Entladungsdrähte 400 wird der Zugstift 415 durch die Feder 414 nach links verschoben und kommt dabei in Anlage an eine Masseschlußplatte 416, die mittels der Stellschraube 409 befestigt und leitend mit den Abschirmplatten 401 verbunden ist wodurch die Hochspannung nun an Masse gelegt ist Durch diese Sicherheitseinrichtung führt der Koronaentlader dann automatisch keine Hochspannung mehr.When the discharge wires 400 are torn, the tension pin 415 is displaced to the left by the spring 414 and comes into contact with a grounding plate 416, which is fastened by means of the adjusting screw 409 and is conductively connected to the shielding plates 401, whereby the high voltage is now connected to ground Due to this safety device, the corona discharger then automatically no longer carries high voltage.
Wie aus Fig.3 ersichtlich ist, sind isolierende Abdeckteile 417, 418 abnehmbar derartig an den Halterungen 402,403 befestigt, daß lediglich der Teil der Entladungsdrähte, an dem die Koronaentladung stattfindet, freigelegt istAs can be seen from Figure 3, insulating cover parts 417, 418 are removable in such a way to the Brackets 402,403 attached so that only the part of the discharge wires on which the corona discharge takes place, is exposed
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP45020075A JPS5029651B1 (en) | 1970-03-11 | 1970-03-11 | |
JP3211270 | 1970-04-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2166948A1 DE2166948A1 (en) | 1976-11-11 |
DE2166948B2 DE2166948B2 (en) | 1981-07-09 |
DE2166948C3 true DE2166948C3 (en) | 1982-04-01 |
Family
ID=26356967
Family Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2166669A Expired DE2166669C3 (en) | 1970-03-11 | 1971-03-11 | Cleaning device in an electrophotographic machine |
DE19712111759 Pending DE2111759A1 (en) | 1970-03-11 | 1971-03-11 | Electrophotographic copier |
DE2167105A Expired DE2167105C2 (en) | 1970-03-11 | 1971-03-11 | Electrophotographic copier |
DE2166667A Expired DE2166667C3 (en) | 1970-03-11 | 1971-03-11 | Developing device for an electrophotographic copier |
DE19712166668 Pending DE2166668A1 (en) | 1970-03-11 | 1971-03-11 | OPTICAL SYSTEM FOR AN ELECTROPHOTOGRAPHIC COPY DEVICE |
DE2166948A Expired DE2166948C3 (en) | 1970-03-11 | 1971-03-11 | Corona discharger with a shield case |
Family Applications Before (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2166669A Expired DE2166669C3 (en) | 1970-03-11 | 1971-03-11 | Cleaning device in an electrophotographic machine |
DE19712111759 Pending DE2111759A1 (en) | 1970-03-11 | 1971-03-11 | Electrophotographic copier |
DE2167105A Expired DE2167105C2 (en) | 1970-03-11 | 1971-03-11 | Electrophotographic copier |
DE2166667A Expired DE2166667C3 (en) | 1970-03-11 | 1971-03-11 | Developing device for an electrophotographic copier |
DE19712166668 Pending DE2166668A1 (en) | 1970-03-11 | 1971-03-11 | OPTICAL SYSTEM FOR AN ELECTROPHOTOGRAPHIC COPY DEVICE |
Country Status (6)
Country | Link |
---|---|
US (1) | US3784297A (en) |
CA (1) | CA959114A (en) |
DE (6) | DE2166669C3 (en) |
FR (1) | FR2081850B1 (en) |
GB (1) | GB1352752A (en) |
NL (2) | NL7103059A (en) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2264824C3 (en) * | 1971-06-03 | 1979-02-08 | Canon K.K., Tokio | Sheet feeding device in a copier |
NL7305054A (en) * | 1972-04-13 | 1973-10-16 | ||
IT969511B (en) * | 1972-07-13 | 1974-04-10 | Olivetti & Co Spa | DEVICE FOR THE MAGNETIC SPACE DEVELOPMENT OF ELECTRO-STATIC LATENT IMAGES |
GB1434102A (en) * | 1972-07-20 | 1976-05-05 | Mita Industrial Co Ltd | Electrophotographic copying machine |
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-
1971
- 1971-03-02 US US00120132A patent/US3784297A/en not_active Expired - Lifetime
- 1971-03-08 NL NL7103059A patent/NL7103059A/xx active Search and Examination
- 1971-03-10 FR FR7108358A patent/FR2081850B1/fr not_active Expired
- 1971-03-11 DE DE2166669A patent/DE2166669C3/en not_active Expired
- 1971-03-11 DE DE19712111759 patent/DE2111759A1/en active Pending
- 1971-03-11 DE DE2167105A patent/DE2167105C2/en not_active Expired
- 1971-03-11 CA CA107,439A patent/CA959114A/en not_active Expired
- 1971-03-11 DE DE2166667A patent/DE2166667C3/en not_active Expired
- 1971-03-11 DE DE19712166668 patent/DE2166668A1/en active Pending
- 1971-03-11 DE DE2166948A patent/DE2166948C3/en not_active Expired
- 1971-04-19 GB GB2294671A patent/GB1352752A/en not_active Expired
-
1978
- 1978-07-28 NL NL7808013A patent/NL7808013A/en active Search and Examination
Also Published As
Publication number | Publication date |
---|---|
DE2166667A1 (en) | 1975-01-16 |
DE2166668A1 (en) | 1975-01-16 |
GB1352752A (en) | 1974-05-08 |
DE2166669C3 (en) | 1986-10-23 |
DE2166669A1 (en) | 1975-01-16 |
DE2111759A1 (en) | 1971-09-30 |
CA959114A (en) | 1974-12-10 |
DE2166948A1 (en) | 1976-11-11 |
FR2081850A1 (en) | 1971-12-10 |
US3784297A (en) | 1974-01-08 |
DE2166669B2 (en) | 1980-09-18 |
DE2167105C2 (en) | 1984-01-26 |
DE2166948B2 (en) | 1981-07-09 |
NL7103059A (en) | 1971-09-14 |
DE2166667B2 (en) | 1978-02-23 |
DE2166667C3 (en) | 1978-10-26 |
NL7808013A (en) | 1978-12-29 |
FR2081850B1 (en) | 1976-04-16 |
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