EP0960357B1 - Entwicklerstation mit querförderung - Google Patents
Entwicklerstation mit querförderung Download PDFInfo
- Publication number
- EP0960357B1 EP0960357B1 EP98912227A EP98912227A EP0960357B1 EP 0960357 B1 EP0960357 B1 EP 0960357B1 EP 98912227 A EP98912227 A EP 98912227A EP 98912227 A EP98912227 A EP 98912227A EP 0960357 B1 EP0960357 B1 EP 0960357B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- toner
- station according
- developer station
- cross
- conveyance
- 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
Links
Images
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
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0887—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity
- G03G15/0891—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity for conveying or circulating developer, e.g. augers
-
- 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
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S222/00—Dispensing
- Y10S222/01—Xerography
Definitions
- the present invention relates to a developer station with a cross conveyor and a dosing device, which is fed by an intermediate container being, a toner box at a first end of the intermediate container flows into the intermediate container and toner in the intermediate container in a conveying direction transverse to the feed direction a carrier material to be provided with toner across the entire writing width from the first end to one second end of the intermediate container via a conveyor line promoted and dosed by means of the metering device Carrier material is delivered.
- JP 59-100472 A is a device for cross conveying known from toner.
- JP 4-365073 A is a developer station known at the ratio between the rotational speed a developer roller and the toner delivery rate changeable in a toner transport device is.
- the object of the invention is based on a developer station with cross conveyor during toner replenishment toner squeeze or toner depletion avoid and a relatively constant ratio of the Achieve cross toner delivery and toner metering.
- This task is performed by a developer station at the beginning mentioned type solved, the relationship between the quantity of the Toner and the amount dispensed per unit of time of the toner is adjustable.
- This will in the intermediate container generates a toner distribution for cross toner delivery, at which the amount of toner from the beginning of the toner conveying path decreases towards the end of the toner conveying path and prevent toner squeeze or toner depletion.
- the setting can be made through a mechanical operative connection between elements for cross-conveying and elements for dosing done or by an appropriate electronic Control of corresponding elements.
- the cross conveyor designed so that the cross conveyor speed of the toner across from the toner box decreases in the transverse direction of the conveyor line. This reduces the risk of toner jams in the front Area of the intermediate container and the risk of toner depletion in the rear area of the intermediate container.
- the cross conveyor is one by one Driver-driven toner conveyor and the metering device a toner metering shaft driven by a connecting rod, in particular the cross conveyor and the Dosing device with each other via a drive lever arm and a joint are coupled.
- the cross conveyor is as being driven by a driver Toner conveyor spiral formed, the pitch of which conveyor line extending transversely from the toner box decreases.
- the toner delivery coil be designed so that its thickness is greater than that of the Toner box from conveyor line extending in the transverse direction decreases.
- the cross conveyor is one by a driver driven toner delivery spiral, their pitch and / or Thickness across from the toner box extending conveyor line decreases. This still enables more freedom of design in the design of the toner conveyor spiral and even more security when moving the toner across.
- the cross conveyor a toner conveying spiral driven by a driver and the dosing device one by a connecting rod driven toner metering shaft, in particular the cross conveyor and the dosing device with each other are coupled via a drive lever arm and a joint.
- This mechanical drive of the toner supply spiral and the Dosing device is straightforward and enables it simple mechanical coupling.
- the ratio of that in the transverse direction is expedient amount of toner and the amount delivered per unit of time dispensed amount of toner per unit time an adjustable lever arm length of the driving lever arm and / or an adjustable eccentric stroke of the connecting rod.
- This allows the relationship between the Cross toner delivery rate and the amount of toner dosage independent of the toner type to keep constant over the whole Writing width to ensure an even supply of toner.
- the lever arm length and / or the eccentric stroke can infinitely variable or graduated depending on requirements his.
- Fig. 1 shows a first embodiment of the present Invention.
- the device shown is used for cross-conveying of toner 4 over the entire writing width B one carrier material (not shown) to be supplied with toner 4.
- the toner box 2 is on with the intermediate container 6 a first end 5 of the intermediate container 6 connected.
- the Intermediate container 6 extends from first end 5 to one second end 7 substantially in the transverse direction to the conveying direction of the carrier material. It contains a mixture of Toner and carrier particles.
- a toner delivery coil 10 extends in the interior of the intermediate container 6 between its two ends 5, 7 and is around its itself between the both ends 5, 7 of the intermediate container 6 extending Longitudinal axis A1 rotatably mounted.
- the pitch H of the toner conveying spiral 10 takes from the first end 5 of the intermediate container 6 from the second end 7 of the intermediate container 6.
- On the bottom of the intermediate container 6 is one Toner dosing shaft 8, which is rotatably mounted about its longitudinal axis A2 is.
- the toner conveying spiral 10 rotated about its longitudinal axis A1, whereby the Toner from the first end 5 of the intermediate container 6 to the second End 7 of the intermediate container 6 is pushed. Because the pitch H of the toner conveying spiral 10 along the conveying direction R decreases, the cross conveyor speed also takes over the conveyor line from the first end 5 to the second end 7 of Intermediate container 6 from. In this way, a toner distribution V educates in the intermediate container 6, in which the in Intermediate container 6 quantity of toner 4 from the first End 5 to the second end 7 of the intermediate container 6 decreases. This reduces the risk of toner jams and at the same time a toner depletion in the area of the second End 7 of the intermediate container 6 prevented.
- Fig. 2 shows a second embodiment of the invention.
- a device for cross-conveying toner 4 shown.
- Elements that are identical to elements of FIG. 1 are given the same reference numerals here as in FIG. 1.
- the toner conveying spiral 10 of FIG. 1 it extends in this embodiment, between the first end 5 and the second end 7 of the intermediate container 6 a toner conveying spiral 12, whose thickness D from the first end 5 to the second End 7 of the intermediate container 6 decreases.
- the effect this decreasing thickness B is the toner conveying coil 10 similar to the decreasing pitch H of the toner delivery spiral 10 of Fig. 1. It provides one from the first end 5 to second end 7 decreasing cross conveyor speed.
- the effect achieved is as in the first exemplary embodiment according to FIG. 1.
- Figures 3 and 4 show components of a device for mechanical coupling of the cross conveyor with the Dosing device (see Fig. 1, Fig. 2).
- the upper part (Fig. 3) and the lower part (Fig. 4) of the coupling device are connected via a connecting rod 14.
- the connecting rod 14 is through a hinge 22 with the upper part and through a hinge 24 connected to the lower part.
- the upper part has a driver 16 for driving the toner conveying spiral 10, 12 according to FIGS. 1 and 2, which has a driving lever arm 18 hinged to the upper part of the connecting rod 14.
- the driver 16 is mounted on the lever arm 18 by a freewheel 20.
- the lower part is formed by the toner metering shaft 8 which through the hinge 24 with respect to its axis of rotation A2 the lower part of the connecting rod 14 is driven eccentrically becomes.
- the driver 16 serves to drive the toner conveying spiral 10 (Fig. 1) or the toner conveying coil 12 (Fig. 2).
- the Setting the lever arm length D1 and the eccentric stroke D2 can be graded or stepless.
- An electronic control 23 is shown in FIG which is an operative connection (coupling) between elements Cross-conveyance of the toner and elements for dosing the Toner can be done. It is equipped with a drive motor 24 for cross-conveying the toner and with a motor 25 for Dosage of the toner connected.
- the controller 23 receives from an input station 26 signals about the type of toner. For example, do these signals include characteristic ones Data about the density of the toner and / or about the grain size of the toner, the controller 23 calculates an appropriate one Cross feed rate and / or dosing quantity and controls the Motors 24, 25 accordingly. For certain, predefined The controller 23 removes standard toner from suitable ones Cross feed and dosing values directly from a pre-assigned Memory 27.
- the input station 26 can be designed so that it from an operator is operated, for example a menu-driven one Control panel, or connected to a sensor that detects the type of toner in the toner box.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
Description
- Fig. 1
- Bestandteile einer ersten Entwicklerstation mit einer Toner-Förderwendel zeigt, deren Ganghöhe variiert;
- Fig. 2
- Bestandteile einer zweiten Entwicklerstation, mit einer Tonerförderwendel, deren Dicke variiert
- Fig. 3 und Fig. 4
- Elemente zur mechanischen Kopplung der Querfördereinrichtung mit der Dosiereinrichtung sowie
- Fig.5
- Elemente zur elektronischen Kopplung der Querfördereinrichtung mit der Dosiereinrichtung
- 2
- Tonerbox
- 4
- Toner
- 6
- Zwischenbehälter
- 8
- Tonerdosierwelle
- 10
- Tonerförderwendel
- 12
- Tonerförderwendel
- 14
- Pleuel
- 16
- Mitnehmer
- 18
- Mitnehmerhebelarm
- 20
- Freilauf
- 22
- Gelenk
- 23
- Steuerung
- 24
- Antriebsmotor zur Querförderung
- 25
- Antriebsmotor zur Dosierung
- 26
- Eingabemittel
- 27
- Speicher für Ansteuerwerte
- A1
- Drehachse der Tonerförderwendel
- A2
- Drehachse der Tonerdosierwelle
- D1
- Hebelarmlänge des Mitnehmerhebelarms
- D2
- Exzenterhub des Pleuels
- B
- Schreibbreite/Förderstrecke
- V
- Tonerverteilung
- R
- Tonerförderrichtung
- H
- Ganghöhe
- D
- Dicke
- D1
- Hebelarmlänge
- D2
- Exzenterhub
Claims (15)
- Entwicklerstation mit einer Querfördereinrichtung (10, 16; 12, 16) und einer Dosiereinrichtung (8, 14), die von einem Zwischenbehälter (6) gespeist wird, wobei eine Tonerbox (2) an einem ersten Ende (5) des Zwischenbehälters in den Zwischenbehälter (6) mündet und Toner (4) in dem Zwischenbehälter (6) in einer Förderrichtung quer zur Vorschubrichtung eines mit Toner (4) zu versehenden Trägermaterials über die gesamte Schreibbreite (B) vom ersten Ende (5) zu einem zweiten Ende (7) des Zwischenbehälters (6) über eine Förderstrecke gefördert und mittels der Dosiereinrichtung (8, 14) dosiert auf das Trägermaterial abgegeben wird, dadurch gekennzeichnet daß das Verhältnis von in Querrichtung je Zeiteinheit geförderten Menge des Toners (4) und der je Zeiteinheit dosiert abgegebenen Menge des Toners (4) einstellbar ist.
- Entwicklerstation nach Anspruch 1, wobei die Querfördergeschwindigkeit des Toners (4) über die sich von der Tonerbox (2) aus in Querrichtung erstreckende Förderstrecke (3) abnimmt.
- Entwicklerstation nach Anspruch 1 oder 2, wobei die Querfördereinrichtung (10, 16; 12, 16) eine durch einen Mitnehmer (16) angetriebene Tonerförderwendel (10; 12) enthält.
- Entwicklerstation nach Anspruch 3, wobei die Ganghöhe (H) der Tonerförderwendel (10) über die sich von der Tonerbox (2) aus in Querrichtung erstreckende Förderstrecke (5) abnimmt.
- Entwicklerstation nach einen der vorhergehenden Ansprüche, wobei die Dicke (D) der Tonerförderwendel (12) über die sich von der Tonerbox (2) aus in Querrichtung erstreckende Förderstrecke (3) abnimmt.
- Entwicklerstation nach Anspruch 1, wobei die Ganghöhe (H) und die Dicke (D) der Tonerförderwendel (10; 12) über die sich von der Tonerbox (2) aus in Querrichtung erstreckende Förderstrecke (3) abnehmen.
- Entwicklerstation nach einen der vorhergehenden Ansprüche, wobei die Dosiereinrichtung (8, 14) eine durch ein Pleuel (14) angetriebene Tonerdosierwelle (8) enthält.
- Entwicklerstation nach Anspruch 7, wobei die Querfördereinrichtung (10, 16; 12, 16) und die Dosiereinrichtung (8, 14) miteinander über einen Mitnehmerhebelarm (18) und ein Gelenk (22) gekoppelt sind.
- Entwicklerstation nach einem der Ansprüche 7 oder 8, wobei das Verhältnis von der in Querrichtung je Zeiteinheit geförderten Menge des Toners (4) und der je Zeiteinheit dosiert abgegebenen Menge des Toners (4) durch eine einstellbare Hebelarmlänge (D1) des Mitnehmerhebelarms (18) und/oder einen einstellbaren Exzenterhub (D2) des Pleuels (14) einstellbar ist.
- Entwicklerstation nach Anspruch 9, wobei die Hebelarmlänge (D1) und/oder der Exzenterhub (D2) stufenlos einstellbar sind.
- Entwicklerstation nach Anspruch 9, wobei die Hebelarmlänge (D1) und/oder der Exzenterhub (D2) abgestuft einstellbar sind.
- Entwicklerstation nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine mechanische Wirkverbindung zwischen Querfördereinrichtung (10, 16; 12, 16) und der Dosiereinrichtung (8, 14) vorgesehen ist.
- Entwicklerstation nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet daß eine elektronische Wirkverbindung zwischen Querfördereinrichtung (10, 16; 12, 16) und der Dosiereinrichtung (8, 14) vorgesehen ist.
- Entwicklerstation nach Anspruch 13, dadurch gekennzeichnet, daß eine elektronische Steuereinrichtung (23) vorgesehen ist, die von einer Eingabestation (26) Signale über die Art des Toners enthält und die daraus Ansteuersignale für ein Element zur Tonerquerförderung (24) und für ein Element zur Tonerdosierung (25) bildet.
- Entwicklerstation nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Zwischenbehälter (6) ein Entwicklergemisch aus Toner (4) und Trägerteilchen enthält.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19705375 | 1997-02-12 | ||
DE19705375 | 1997-02-12 | ||
PCT/DE1998/000431 WO1998036328A1 (de) | 1997-02-12 | 1998-02-12 | Entwicklerstation mit querförderung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0960357A1 EP0960357A1 (de) | 1999-12-01 |
EP0960357B1 true EP0960357B1 (de) | 2002-11-06 |
Family
ID=7820041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98912227A Expired - Lifetime EP0960357B1 (de) | 1997-02-12 | 1998-02-12 | Entwicklerstation mit querförderung |
Country Status (4)
Country | Link |
---|---|
US (1) | US6208823B1 (de) |
EP (1) | EP0960357B1 (de) |
DE (2) | DE19880139D2 (de) |
WO (1) | WO1998036328A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5822066B2 (ja) * | 2011-07-27 | 2015-11-24 | 株式会社リコー | 現像剤収容器、現像装置、プロセスユニット及び画像形成装置 |
JP6447448B2 (ja) * | 2015-10-08 | 2019-01-09 | 京セラドキュメントソリューションズ株式会社 | 現像装置、画像形成装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3180313A (en) * | 1962-10-19 | 1965-04-27 | American Photocopy Equip Co | Apparatus for developing electrostatic image |
DE3225870A1 (de) | 1982-07-10 | 1984-01-12 | Agfa-Gevaert Ag, 5090 Leverkusen | Tonerdosiereinrichtung fuer elektrofotografische kopiergeraete |
US4558659A (en) * | 1982-08-26 | 1985-12-17 | Xerox Corporation | Particle dispensing system |
JPS5971065A (ja) * | 1982-10-18 | 1984-04-21 | Fuji Xerox Co Ltd | 電子複写機のトナ−供給装置 |
JPS59100472A (ja) * | 1982-12-01 | 1984-06-09 | Fuji Xerox Co Ltd | トナ−供給装置 |
JPS6147975A (ja) * | 1984-08-16 | 1986-03-08 | Fuji Xerox Co Ltd | 磁気ブラシ現像装置 |
JPH07113799B2 (ja) | 1987-09-30 | 1995-12-06 | 三田工業株式会社 | 現像剤補給装置 |
EP0403469B1 (de) * | 1988-03-02 | 1991-09-18 | Siemens Nixdorf Informationssysteme Aktiengesellschaft | Vorrichtung zum dosierten einfüllen von toner aus einem vorratsbehälter in die entwicklerstation eines druck- oder kopiergerätes |
US5128724A (en) * | 1988-12-23 | 1992-07-07 | Casio Computer Co., Ltd. | Developer restoring unit in an image forming apparatus |
US5345298A (en) * | 1993-10-20 | 1994-09-06 | Xerox Corporation | Magnetic brush development apparatus for toner add/mix dispenser |
US5619312A (en) | 1993-11-10 | 1997-04-08 | Sharp Kabushiki Kaisha | Developing device with developer-supplying mechanism |
-
1998
- 1998-02-12 EP EP98912227A patent/EP0960357B1/de not_active Expired - Lifetime
- 1998-02-12 US US09/367,119 patent/US6208823B1/en not_active Expired - Lifetime
- 1998-02-12 WO PCT/DE1998/000431 patent/WO1998036328A1/de active IP Right Grant
- 1998-02-12 DE DE19880139T patent/DE19880139D2/de not_active Ceased
- 1998-02-12 DE DE59806187T patent/DE59806187D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0960357A1 (de) | 1999-12-01 |
DE59806187D1 (de) | 2002-12-12 |
US6208823B1 (en) | 2001-03-27 |
WO1998036328A1 (de) | 1998-08-20 |
DE19880139D2 (de) | 2000-03-16 |
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