EP2269118A1 - Dispositif pour manipuler du toner en poudre - Google Patents

Dispositif pour manipuler du toner en poudre

Info

Publication number
EP2269118A1
EP2269118A1 EP09729279A EP09729279A EP2269118A1 EP 2269118 A1 EP2269118 A1 EP 2269118A1 EP 09729279 A EP09729279 A EP 09729279A EP 09729279 A EP09729279 A EP 09729279A EP 2269118 A1 EP2269118 A1 EP 2269118A1
Authority
EP
European Patent Office
Prior art keywords
opening
filter
airflow
particles
air flow
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.)
Withdrawn
Application number
EP09729279A
Other languages
German (de)
English (en)
Other versions
EP2269118A4 (fr
Inventor
Mikael Håkansson
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.)
TFM Sweden AB
Original Assignee
TFM Sweden AB
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
Application filed by TFM Sweden AB filed Critical TFM Sweden AB
Publication of EP2269118A1 publication Critical patent/EP2269118A1/fr
Publication of EP2269118A4 publication Critical patent/EP2269118A4/fr
Withdrawn legal-status Critical Current

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
    • G03G15/06—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
    • G03G15/0894—Reconditioning of the developer unit, i.e. reusing or recycling parts of the unit, e.g. resealing of the unit before refilling with toner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/17—Cleaning arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/377—Cooling or ventilating arrangements
    • 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

Definitions

  • the present invention relates to a device for handling and collection of toner powder at a filling station for filling of toner cassettes.
  • the applicant for the present invention has developed and patented a method and device for refilling of toner powder in a toner cassette comprising a device for creating a passage into the toner cassette and a filling device of new powder comprising an entry means and feeding means for feeding in of the powder through the entry means and into the toner cassette. After this the passage is closed.
  • toner powder In order to refill toner powder in a toner cassette this has to be cleaned before it is possible to change components and to refill with new toner.
  • the toner powder has a very small particle size such as fine dust with sizes of 0,5 to 15 microns and is therefore very easily airborne and may cause problem for the person that is to clean the cassette. Further toner powder does easily pollute the surrounding environment.
  • a device for handling volatile particles during emptying of vessels containing said particles, a collection vessel for emptied particles, placed mainly vertically below the opening in order to catch particles that fall down by gravitation, an airflow creating means, at least one filter, whereby the airflow creating means is capable of create an airflow through the opening towards the said collection vessel, as well as an airflow guiding means arranged such that the direction of the airflow is altered towards the filter in order to catch particles that are brought with the airflow.
  • the said filter is placed in the vicinity of said opening, that said air flow guiding means is capable of changing the direction of the air flow such that it passes through said opening.
  • the said air flow guiding means comprises a plate placed in said opening in a mainly vertical position, whereby said opening is divided into two part-openings where the air flow is going down in one part-opening and the other in the second part-opening.
  • said air flow guiding means further comprises a pipe that extends between the opening and the collection vessel.
  • the said filter is arranged with a certain angle over the second part-opening.
  • the filter also preferably comprises an absolute filter.
  • the air flow creating means is suitably a fan.
  • the advantages with the present invention are several.
  • the device ascertains that particles that are emptied through the opening falls down towards the collection vessel and are brought by the air stream.
  • the air flow guiding means is capable of deflecting the air stream towards the filter, very volatile particles are caught by the filter, which volatile particles otherwise would be brought into the environment because they are so small and light that they are affected more by air movements than the gravitational force.
  • the air stream is guided both down and up through the opening and that the filter is placed in the air stream, whereby the filter can take care of particles in the air flow according to above, but also particles that can be present above the opening, for example during careless emptying.
  • a preferable air guide means is a plate placed generally vertically in the opening, whereby two part-openings are created. Further the air guide means comprises a pipe that extends between the opening and the collection vessel. This design provides the advantage that the speed of the downwardly directed air stream is reduced when it has passed the plate because the volume increases. Therefore the main part of the toner particles will fall down into the collection vessel. The very small and volatile particles continue in the air stream and are caught by the filter.
  • the filter In order to really ascertain that no particles enter the environment the filter consists of two parts, a pre-filter that catches the main part of the particles and a subsequent absolute filter that catches the remaining particles.
  • Fig. 1 shows an example of a work station for filling of toner powder in toner cassettes where the present invention may be used
  • Fig. 2 shows a view in perspective of the present invention
  • Fig. 3 shows a side view of the device of Fig. 2.
  • FIG. 1 shows an example of a work station 10 for filling of toner cassettes where the present invention may be comprised.
  • the work station comprises a work bench 12, a passage-making device 14 for creating a passage in the toner cassette, through which toner powder may be filled.
  • a filling device 16 comprising an entry means that is placed in the passage of the cassette as well as feeding means for feeding toner powder from a container 17 through the entry means and into the toner cassette.
  • a cleaning of the toner cassette is needed before it can be filled with toner powder.
  • the work bench has been arranged with a hole or opening 20, Fig. 2, that in the shown embodiment is rectangular.
  • a rectangular pipe- shaped structure 22 with four walls is arranged below the opening .
  • a sack 24 may be attached around the pipe.
  • a plate 26 is arranged in a generally vertical position and parallel with the front edge of the table so that a rear 20a and a front 20b opening are formed in the opening.
  • a grid 27 is arranged in the front opening.
  • Behind the rear opening a filter 28 is arranged, hereafter named pre-filter, generally standing but with a certain inclination towards the rear opening.
  • a suitable angle is between 13 - 15 degrees from the vertical.
  • the pre-filter is releasibly attached with suitable holders (not shown) in order to be cleaned.
  • the pre-filter may be made of polyester material.
  • a suction fan 30 is arranged, preferably a centrifugal fan.
  • a very fine filter 32 is arranged, an absolute filter, also named HEPA-filter.
  • the device is intended to be used as follows.
  • the cassette that is to be cleaned is shaken against the grid 27 in the front opening whereby the remaining tone powder in the cassette falls down in the sack 24 by gravitation.
  • the grid prevents that tools and other things on the work table fall through the opening.
  • the fan 30 In order to take care of the very small airborne toner particles the fan 30 is operating during use.
  • the fan creates a flow that flows through the front opening 20b, around the lower edge of the plate 26, up through the rear opening 20a and through first the pre-filter 28 and then the absolute filter 32. This flow also makes the heavier particles to be drawn down towards the sack.
  • the air has passed the plate 26, the volume and the air speed decreases and the majority of the toner particles fall down in the sack.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Catching Or Destruction (AREA)

Abstract

La présente invention porte sur un dispositif destiné à manipuler du toner en poudre, au cours de la vidange des récipients contenant ledit toner en poudre.  Ledit dispositif comporte une ouverture (20) pour évacuer le toner en poudre, un récipient de récupération (24) pour le toner en poudre évacué, placé essentiellement d'une manière verticale au-dessous de l'ouverture pour recevoir le toner en poudre qui tombe sous l'effet de la gravité, un moyen de création d'écoulement d'air (30), au moins un filtre (28), le moyen de création d'écoulement d'air étant capable de créer un écoulement d'air passant par l'ouverture et allant vers le récipient de récupération, ainsi qu'un moyen de guidage d'écoulement d'air, disposé de telle sorte que la direction de l'écoulement d'air est modifiée vers le filtre (28), pour récupérer le toner en poudre entraîné par l'écoulement d'air.
EP09729279A 2008-04-10 2009-04-08 Dispositif pour manipuler du toner en poudre Withdrawn EP2269118A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0800814A SE532389C2 (sv) 2008-04-10 2008-04-10 Anordning för hantering av tonerpulver
PCT/SE2009/050369 WO2009126105A1 (fr) 2008-04-10 2009-04-08 Dispositif pour manipuler du toner en poudre

Publications (2)

Publication Number Publication Date
EP2269118A1 true EP2269118A1 (fr) 2011-01-05
EP2269118A4 EP2269118A4 (fr) 2012-09-26

Family

ID=41162101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09729279A Withdrawn EP2269118A4 (fr) 2008-04-10 2009-04-08 Dispositif pour manipuler du toner en poudre

Country Status (6)

Country Link
US (1) US20110030841A1 (fr)
EP (1) EP2269118A4 (fr)
AU (1) AU2009234497A1 (fr)
CA (1) CA2721155A1 (fr)
SE (1) SE532389C2 (fr)
WO (1) WO2009126105A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102874039A (zh) * 2012-08-31 2013-01-16 陈�胜 一种使静电吸附壁纸和基于静电膜的壁纸牢固贴附于物体表面的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271751A (en) * 1992-02-18 1993-12-21 Eugen Laegler Gmbh Device for removing dust from a machine
US6112040A (en) * 1998-11-05 2000-08-29 Asahi Kogaku Kogyo Kabushiki Kaisha Exit-structure of ozone-exhaust duct incorporated in electrophotographic image-forming apparatus
US6949130B1 (en) * 1999-11-04 2005-09-27 Techtronic Industries Co. Ltd. Dust and dirt separation assembly
WO2006019150A1 (fr) * 2004-08-20 2006-02-23 Ricoh Company, Ltd. Contenant à poudre, procédé de nettoyage et appareil de nettoyage pour nettoyer le contenant à poudre

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162148A (en) * 1975-09-23 1979-07-24 Ltg Lufttechnische Gmbh Filtering apparatus
FR2377937A1 (fr) * 1977-01-20 1978-08-18 Alfa Laval Ag Procede et dispositif pour la desaeration des poudres, telles que poudres de lait
US4312388A (en) * 1980-02-12 1982-01-26 Hager Charles C Dust control apparatus and method of transferring dust laden discrete solid particles
US4396045A (en) * 1981-04-06 1983-08-02 Hercules Incorporated Feed chute for particulate materials
GB8620839D0 (en) * 1986-08-28 1986-10-08 Stott L E Powder dispensing apparatus
US4872493A (en) * 1988-05-10 1989-10-10 Container Corporation Of America Apparatus for filling a lined container
US5316056A (en) * 1991-03-14 1994-05-31 L. E. Stott Limited Powder dispensing apparatus
US5259425A (en) * 1991-06-05 1993-11-09 United States Systems, Inc. Method and apparatus for densifying flexible bulk containers
FI95083C (fi) * 1993-03-26 1995-12-11 Yritysgrafiikka Oy Värikasettien puhdistuslaite
ES2227431T3 (es) * 2001-03-05 2005-04-01 WINDMILLER & HILSCHER KG Dispositivo para ensacar productos a granel.
US6679301B2 (en) * 2001-03-13 2004-01-20 Ricoh Company, Ltd. Powder packing method and apparatus therefor
JP2004157261A (ja) * 2002-11-05 2004-06-03 Fuji Xerox Co Ltd 粉体回収装置及び粉体回収方法
JP2006085124A (ja) * 2004-08-20 2006-03-30 Ricoh Co Ltd 粉体収納容器、粉体収納容器の洗浄方法及び洗浄装置
CA2483325A1 (fr) * 2004-10-22 2006-04-22 Safonov Vladimir Machine de nettoyage de cartouches sous vide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271751A (en) * 1992-02-18 1993-12-21 Eugen Laegler Gmbh Device for removing dust from a machine
US6112040A (en) * 1998-11-05 2000-08-29 Asahi Kogaku Kogyo Kabushiki Kaisha Exit-structure of ozone-exhaust duct incorporated in electrophotographic image-forming apparatus
US6949130B1 (en) * 1999-11-04 2005-09-27 Techtronic Industries Co. Ltd. Dust and dirt separation assembly
WO2006019150A1 (fr) * 2004-08-20 2006-02-23 Ricoh Company, Ltd. Contenant à poudre, procédé de nettoyage et appareil de nettoyage pour nettoyer le contenant à poudre

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009126105A1 *

Also Published As

Publication number Publication date
WO2009126105A1 (fr) 2009-10-15
AU2009234497A1 (en) 2009-10-15
SE0800814L (sv) 2009-10-11
EP2269118A4 (fr) 2012-09-26
CA2721155A1 (fr) 2009-10-15
US20110030841A1 (en) 2011-02-10
SE532389C2 (sv) 2010-01-12

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