WO2009126105A1 - Device for handling of toner powder - Google Patents

Device for handling of toner powder Download PDF

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Publication number
WO2009126105A1
WO2009126105A1 PCT/SE2009/050369 SE2009050369W WO2009126105A1 WO 2009126105 A1 WO2009126105 A1 WO 2009126105A1 SE 2009050369 W SE2009050369 W SE 2009050369W WO 2009126105 A1 WO2009126105 A1 WO 2009126105A1
Authority
WO
WIPO (PCT)
Prior art keywords
opening
filter
airflow
particles
air flow
Prior art date
Application number
PCT/SE2009/050369
Other languages
French (fr)
Inventor
Mikael Håkansson
Original Assignee
Tfm Sweden Aktiebolag
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 Aktiebolag filed Critical Tfm Sweden Aktiebolag
Priority to CA2721155A priority Critical patent/CA2721155A1/en
Priority to US12/937,387 priority patent/US20110030841A1/en
Priority to AU2009234497A priority patent/AU2009234497A1/en
Priority to EP09729279A priority patent/EP2269118A4/en
Publication of WO2009126105A1 publication Critical patent/WO2009126105A1/en

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

The present invention relates to a device for handling toner powder, during emptying of vessels containing said toner powder, comprising an opening (20) in the device for emptying toner powder, a collection vessel (24) for emptied toner powder, placed mainly vertically below the opening in order to catch toner powder that fall down by gravitation, an airflow creating means (30), at least one filter (28), whereby the airflow creating means is capable of creating an airflow through the opening towards said collection vessel, as well as an airflow guiding means arranged such that the direction of the airflow is altered towards the filter (28) in order to catch toner powder brought with the airflow.

Description

DEVICE FOR HANDLING OF TONER POWDER
TECHNICAL AREA
The present invention relates to a device for handling and collection of toner powder at a filling station for filling of toner cassettes.
TECHNICAL BACKGROUND
There is a large market for recycling and refilling of toner cassettes. Partly it is more environmentally friendly to recycle and reuse of toner cassettes when these have been emptied and moreover they are in most cases somewhat cheaper to purchase than original 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.
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.
BRIEF DESCRIPTION OF THE INVENTION
It is an aim with the present invention to provide a device that can handle airborne dust such as for example toner powder.
This aim is obtained by a device that is characterised by the features of the independent patent claim 1. Preferable embodiments of the invention are apparent from the dependent claims. According to a main aspect of the invention it is characterized by 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.
According to another aspect of the invention 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.
According to a further aspect of the invention, 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.
According to another aspect of the invention said air flow guiding means further comprises a pipe that extends between the opening and the collection vessel.
Preferably the said filter is arranged with a certain angle over the second part-opening. Further 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. However, because 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.
Preferably 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.
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.
These and other aspects of and advantages with the present invention will become apparent from the following detailed description and from the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
In the following detailed description of the invention, reference will be made to the accompanying drawings, of which
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, and
Fig. 3 shows a side view of the device of Fig. 2.
DETAILED DESCRIPTION OF THE INVENTION
Figure 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. There is also 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.
As mentioned above a cleaning of the toner cassette is needed before it can be filled with toner powder. In order to do this the work bench has been arranged with a hole or opening 20, Fig. 2, that in the shown embodiment is rectangular. Below the opening a rectangular pipe- shaped structure 22 with four walls is arranged. A sack 24 may be attached around the pipe. In the opening 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. In the front opening a grid 27 is arranged. 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. Behind the pre-filter a suction fan 30 is arranged, preferably a centrifugal fan. Between the pre-filter and the 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.
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. When 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.
The very light and small particles follow however the air stream up towards the rear opening and the majority of the particles are caught in the pre-filter 28. By static charge of the particles, they are drawn to each other and create large groups of particles, which may be easily removed and then fall down in the sack. Particles that are spread in the air above the opening, due to careless cleaning, will be sucked directly to the pre-filter. The very small amounts of small particles that pass the pre-filter will be caught by the absolute filter. After a certain use the sack with the collected dust may be easily replaced, without any dust entering the surrounding air. It is to be understood that the invention described above and shown in the drawings only is to be regarded as non-limiting example of the invention and that it may be modified in many ways within the scope of the patent claims. It is therefore to be understood that the invention may be used with other types of dangerous and irritating dust within generally the same particle size. It is also to be understood that other suitable types of filters, fans, air flow guides and the design and positioning of these may be modified within the frame of the patent claims.

Claims

PATENT CLAIMS
1. Device for handling volatile particles, during emptying of vessels containing said particles, comprising
- an opening in the device for emptying of 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.
2. Device according to claim 1, wherein 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 up through said opening.
3. Device according to claim 2, wherein 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.
4. Device according to claim 3, wherein said air flow guiding means further comprises a pipe that extends between the opening and the collection vessel.
5. Device according to claim 3 or 4, wherein said filter is arranged with a certain angle over the second part-opening.
6. Device according to any of the preceding claims, wherein the filter also comprises an absolute filter.
7. Device according to any of the preceding claims, wherein the air flow creating means suitably is a fan.
PCT/SE2009/050369 2008-04-10 2009-04-08 Device for handling of toner powder WO2009126105A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA2721155A CA2721155A1 (en) 2008-04-10 2009-04-08 Device for handling of toner powder
US12/937,387 US20110030841A1 (en) 2008-04-10 2009-04-08 Device for handling of toner powder
AU2009234497A AU2009234497A1 (en) 2008-04-10 2009-04-08 Device for handling of toner powder
EP09729279A EP2269118A4 (en) 2008-04-10 2009-04-08 Device for handling of toner powder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0800814A SE532389C2 (en) 2008-04-10 2008-04-10 Device for handling toner powder
SE0800814-6 2008-04-10

Publications (1)

Publication Number Publication Date
WO2009126105A1 true WO2009126105A1 (en) 2009-10-15

Family

ID=41162101

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2009/050369 WO2009126105A1 (en) 2008-04-10 2009-04-08 Device for handling of toner powder

Country Status (6)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102874039A (en) * 2012-08-31 2013-01-16 陈�胜 Method for firmly attaching electrostatic adsorption wallpaper and wallpaper based on electrostatic film to surface of object

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994023348A1 (en) * 1993-03-26 1994-10-13 Yritysgrafiikka Oy Cleaning apparatus for color cartridges
JP2004157261A (en) * 2002-11-05 2004-06-03 Fuji Xerox Co Ltd Powder recovery device and powder recovering method
WO2006019150A1 (en) * 2004-08-20 2006-02-23 Ricoh Company, Ltd. Powder container, cleaning method and cleaning apparatus for cleaning the powder container
JP2006085124A (en) * 2004-08-20 2006-03-30 Ricoh Co Ltd Powder container and method and apparatus for cleaning same
CA2483325A1 (en) * 2004-10-22 2006-04-22 Safonov Vladimir Vacuum cartridge cleaning machine

Family Cites Families (13)

* 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 (en) * 1977-01-20 1978-08-18 Alfa Laval Ag METHOD AND DEVICE FOR DEAERATION OF POWDERS, SUCH AS MILK POWDERS
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
DE4204789C2 (en) * 1992-02-18 1994-11-03 Laegler Eugen Gmbh Device for removing dust from a dust air extracted on a workpiece processing machine
JP3397704B2 (en) * 1998-11-05 2003-04-21 ペンタックス株式会社 Image forming device
GB9926009D0 (en) * 1999-11-04 2000-01-12 Vax Ltd Dust filter
US6868876B2 (en) * 2001-03-05 2005-03-22 Windmoeller & Hoelscher Kg Device for bagging bulk material
US6679301B2 (en) * 2001-03-13 2004-01-20 Ricoh Company, Ltd. Powder packing method and apparatus therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994023348A1 (en) * 1993-03-26 1994-10-13 Yritysgrafiikka Oy Cleaning apparatus for color cartridges
JP2004157261A (en) * 2002-11-05 2004-06-03 Fuji Xerox Co Ltd Powder recovery device and powder recovering method
WO2006019150A1 (en) * 2004-08-20 2006-02-23 Ricoh Company, Ltd. Powder container, cleaning method and cleaning apparatus for cleaning the powder container
JP2006085124A (en) * 2004-08-20 2006-03-30 Ricoh Co Ltd Powder container and method and apparatus for cleaning same
CA2483325A1 (en) * 2004-10-22 2006-04-22 Safonov Vladimir Vacuum cartridge cleaning machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102874039A (en) * 2012-08-31 2013-01-16 陈�胜 Method for firmly attaching electrostatic adsorption wallpaper and wallpaper based on electrostatic film to surface of object

Also Published As

Publication number Publication date
EP2269118A1 (en) 2011-01-05
AU2009234497A1 (en) 2009-10-15
US20110030841A1 (en) 2011-02-10
SE0800814L (en) 2009-10-11
CA2721155A1 (en) 2009-10-15
EP2269118A4 (en) 2012-09-26
SE532389C2 (en) 2010-01-12

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