DE1088809B - Equipment for making copies by electrophotographic means - Google Patents
Equipment for making copies by electrophotographic meansInfo
- Publication number
- DE1088809B DE1088809B DES52834A DES0052834A DE1088809B DE 1088809 B DE1088809 B DE 1088809B DE S52834 A DES52834 A DE S52834A DE S0052834 A DES0052834 A DE S0052834A DE 1088809 B DE1088809 B DE 1088809B
- Authority
- DE
- Germany
- Prior art keywords
- electrophotographic
- drum
- making copies
- equipment
- transport drum
- 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.)
- Pending
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
- G03G15/22—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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Description
Einrichtung zum Herstellen von Kopien auf elektrofotografischem Wege Die Erfindung betrifft eine Einrichtung zum Herstellen von Kopien auf elektrofotografischem Wege, bei der elektrostatisch aufgeladenes, elektrofotografisches Gut während der Belichtung einer weiteren Behandlung auf einer aus leitfähigem Werkstoff bestehenden Transporttrommel durch auf Potentialdifferenz beruhende Anziehungskräfte gehalten wird.Equipment for making copies by electrophotographic means The invention relates to a device for making copies on electrophotographic Ways in which electrostatically charged, electrophotographic material during the Exposure of a further treatment on an existing one made of conductive material Transport drum held by attraction forces based on potential difference will.
Bei bekannten Einrichtungen dieser Art sind die Lichtquelle sowie die anderen Bauelemente, wie Bestäubungseinrichtung u. dgl., konzentrisch um die Transporttrommel angeordnet. Diese Anordnung ist insofern nachteilig, als sie verhältnismäßig viel Platz beansprucht und auch schwierig bedienbar ist. Ferner ist es bei Lichtpäus- oder Fotokopiereinrichtungen zum Herstellen von Kopien ganz allgemein bekannt, die Lichtquelle im Innern eines Glaszylinders anzuordnen. Die Erfindung benutzt die bei diesen bekannten Einrichtungen für andere Zwecke verwendeten Mittel zur Lösung der Aufgabe, ein xerografisches Gerät mit einem raumsparenden Aufbau und bequemer Bedienungsmöglichkeit zu schaffen. Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die Transporttrommel aus transparentem Werkstoff, z. B. aus leitfähigem Glas, besteht. In Weiterbildung der Erfindung ist als Transporttrommel eine Glastrommel verwendbar, die mit einer transparenten, leitfähigen Schicht aus Metall, Lack od, dgl., versehen ist.In known devices of this type, the light source and the other components, such as the dusting device and the like, are arranged concentrically around the transport drum. This arrangement is disadvantageous in that it takes up a relatively large amount of space and is also difficult to operate. Furthermore, it is generally known in blueprint or photocopying devices for making copies to arrange the light source in the interior of a glass cylinder. The invention uses the means used in these known devices for other purposes to achieve the object of creating a xerographic device with a space-saving structure and convenient operation. This object is achieved according to the invention in that the transport drum made of transparent material, for. B. made of conductive glass. In a further development of the invention, a glass drum which is provided with a transparent, conductive layer of metal, lacquer or the like can be used as the transport drum.
An Hand der Zeichnung wird ein Ausführungsbeispiel gemäß der Erfindung näher erläutert.An exemplary embodiment according to the invention is illustrated with the aid of the drawing explained in more detail.
Die Transporttommel 1 ist auf der sich vorzugsweise nicht drehenden Welle 2 beidseitig gelagert. Sie besteht aus elektrisch leitendem Glas, dessen Leitfähigkeit ausreicht, um das von einer Spannungsquelle 19 aktivierte elektrofotografische Gut 3 in Blatt- oder Bandform auf dem Mantel der Transporttrommel 1 infolge der elektrostatischen Kräfte genügend festzuhalten. Konzentrisch um die Trommel t sind die Vorrratsbehälter 4 mit dem elektrofotografischen Papier 3, der Zuführschacht 5 für das Vorlageoriginal, die aus dem Band 6 bestehende Andrückvorrichtung, der Auffangschacht 7 und der Auffangbehälter 8 für die Originalvorlage angeordnet. Ferner ist eine Bestäubungseinrichtung 9 vorgesehen, die das Entwicklungspulver gegen das elektrofotografische Papier schleudert. Schließlich sind noch eine Anpreßtrommel 11 sowie eine Zuführeinrichtung für das übertragungspapier 12 angeordnet, das nach dem Durchlauf durch den von den Trommeln 1 und 11 gebildeten Spalt und nach Übernahme des Entwicklungspulvers von dem elektrofotografischen Papier einer Heizvorrichtung 13 und anschließend dem Auffangbehälter 14 zugeführt wird. Das elektrofotografische Papier wird durch den Abstreifer 15 von der Trommel 1 gelöst und in den Auffangbehälter 16 geleitet. Im Innern der Trommel 1 ist die Lichtquelle 17 mit dem Reflektor 18 so angeordnet, daß nur ein ganz bestimmter Teilbereich der Trommel 1 beleuchtet wird.The transport drum 1 is preferably on the non-rotating Shaft 2 supported on both sides. It consists of electrically conductive glass, its conductivity sufficient to activate the electrophotographic material from a voltage source 19 3 in sheet or tape form on the jacket of the transport drum 1 due to the electrostatic To hold on enough forces. The storage containers are concentric around the drum t 4 with the electrophotographic paper 3, the feed chute 5 for the original, the pressing device consisting of the band 6, the collecting shaft 7 and the collecting container 8 arranged for the original artwork. Furthermore, a dusting device 9 is provided, which hurls the developing powder against the electrophotographic paper. In the end are still a pressure drum 11 and a feed device for the transfer paper 12 arranged, which is formed after the passage through the drums 1 and 11 formed Gap and after taking over the developing powder from the electrophotographic paper a heating device 13 and then the collecting container 14 is fed. The electrophotographic paper is detached from the drum 1 by the scraper 15 and passed into the collecting container 16. Inside the drum 1 is the light source 17 arranged with the reflector 18 so that only a very specific portion of the Drum 1 is illuminated.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES52834A DE1088809B (en) | 1957-03-22 | 1957-03-22 | Equipment for making copies by electrophotographic means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES52834A DE1088809B (en) | 1957-03-22 | 1957-03-22 | Equipment for making copies by electrophotographic means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1088809B true DE1088809B (en) | 1960-09-08 |
Family
ID=7488950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES52834A Pending DE1088809B (en) | 1957-03-22 | 1957-03-22 | Equipment for making copies by electrophotographic means |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1088809B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE743200C (en) * | 1940-05-28 | 1943-12-20 | Kalle & Co Ag | Blueprint machine with a rotatable exposure cylinder for automatic copying of a whole stack of documents |
| FR922352A (en) * | 1946-02-13 | 1947-06-06 | Electrophotography device | |
| DE842003C (en) * | 1950-12-02 | 1952-06-23 | Maschb Ing H Stegenwalner K G | Stripper device, in particular on blueprint machines |
| DE896455C (en) * | 1950-03-04 | 1953-11-12 | Battelle Development Corp | Electrophotographic duplication process and machine for its execution |
| US2684902A (en) * | 1951-11-23 | 1954-07-27 | Haloid Co | Image transfer mechanism for electrostatically adhering images |
| US2761416A (en) * | 1953-01-02 | 1956-09-04 | Battelle Development Corp | Development mechanism for electrostatic images |
-
1957
- 1957-03-22 DE DES52834A patent/DE1088809B/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE743200C (en) * | 1940-05-28 | 1943-12-20 | Kalle & Co Ag | Blueprint machine with a rotatable exposure cylinder for automatic copying of a whole stack of documents |
| FR922352A (en) * | 1946-02-13 | 1947-06-06 | Electrophotography device | |
| DE896455C (en) * | 1950-03-04 | 1953-11-12 | Battelle Development Corp | Electrophotographic duplication process and machine for its execution |
| DE842003C (en) * | 1950-12-02 | 1952-06-23 | Maschb Ing H Stegenwalner K G | Stripper device, in particular on blueprint machines |
| US2684902A (en) * | 1951-11-23 | 1954-07-27 | Haloid Co | Image transfer mechanism for electrostatically adhering images |
| US2761416A (en) * | 1953-01-02 | 1956-09-04 | Battelle Development Corp | Development mechanism for electrostatic images |
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