US20110030841A1 - Device for handling of toner powder - Google Patents
Device for handling of toner powder Download PDFInfo
- Publication number
- US20110030841A1 US20110030841A1 US12/937,387 US93738709A US2011030841A1 US 20110030841 A1 US20110030841 A1 US 20110030841A1 US 93738709 A US93738709 A US 93738709A US 2011030841 A1 US2011030841 A1 US 2011030841A1
- Authority
- US
- United States
- Prior art keywords
- opening
- filter
- particles
- airflow
- 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.)
- Abandoned
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
- G03G15/0894—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
Abstract
A device for handling volatile particles, during emptying of vessels containing the particles, includes an opening for emptying the 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 element, at least one filter, whereby the airflow creating element is capable of creating an airflow through the opening towards the collection vessel, as well as an airflow guiding element arranged such that the direction of the airflow is altered towards the filter in order to catch particles that are brought with the airflow.
Description
- The present invention relates to a device for handling and collection of toner powder at a filling station for filling of toner cassettes.
- 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.
- 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.
- 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 ofFIG. 2 . -
FIG. 1 shows an example of awork station 10 for filling of toner cassettes where the present invention may be comprised. The work station comprises awork 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 afilling 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 acontainer 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. Asack 24 may be attached around the pipe. In the opening aplate 26 is arranged in a generally vertical position and parallel with the front edge of the table so that a rear 20 a and a front 20 b opening are formed in the opening. In the front opening agrid 27 is arranged. Behind the rear opening afilter 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 asuction fan 30 is arranged, preferably a centrifugal fan. Between the pre-filter and the fan a veryfine 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 thesack 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 20 b, around the lower edge of theplate 26, up through the rear opening 20 a and through first the pre-filter 28 and then theabsolute filter 32. This flow also makes the heavier particles to be drawn down towards the sack. When the air has passed theplate 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 (10)
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, and 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 , wherein said filter is arranged with a certain angle over the second part-opening.
6. Device according to claim 1 , wherein the filter also comprises an absolute filter.
7. Device according to claim 1 , wherein the air flow creating means suitably is a fan.
8. Device according to claim 4 , wherein said filter is arranged with a certain angle over the second part-opening.
9. Device according to claim 2 , wherein the filter also comprises an absolute filter.
10. Device according to claim 2 , wherein the air flow creating means suitably is a fan.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0800814-6 | 2008-04-10 | ||
SE0800814A SE532389C2 (en) | 2008-04-10 | 2008-04-10 | Device for handling toner powder |
PCT/SE2009/050369 WO2009126105A1 (en) | 2008-04-10 | 2009-04-08 | Device for handling of toner powder |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110030841A1 true US20110030841A1 (en) | 2011-02-10 |
Family
ID=41162101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/937,387 Abandoned US20110030841A1 (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) |
Families Citing this family (1)
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 (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4162148A (en) * | 1975-09-23 | 1979-07-24 | Ltg Lufttechnische Gmbh | Filtering apparatus |
US4185669A (en) * | 1977-01-20 | 1980-01-29 | Alfa-Laval S.A. | Method and apparatus for filling a receptacle with powder |
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 |
US4825913A (en) * | 1986-08-28 | 1989-05-02 | Leslie Stott | Powder dispensing apparatus |
US4872493A (en) * | 1988-05-10 | 1989-10-10 | Container Corporation Of America | Apparatus for filling a lined container |
US5259425A (en) * | 1991-06-05 | 1993-11-09 | United States Systems, Inc. | Method and apparatus for densifying flexible bulk containers |
US5271751A (en) * | 1992-02-18 | 1993-12-21 | Eugen Laegler Gmbh | Device for removing dust from a machine |
US5316056A (en) * | 1991-03-14 | 1994-05-31 | L. E. Stott Limited | Powder dispensing apparatus |
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 |
US6679301B2 (en) * | 2001-03-13 | 2004-01-20 | Ricoh Company, Ltd. | Powder packing method and apparatus therefor |
US6868876B2 (en) * | 2001-03-05 | 2005-03-22 | Windmoeller & Hoelscher Kg | Device for bagging bulk material |
US6949130B1 (en) * | 1999-11-04 | 2005-09-27 | Techtronic Industries Co. Ltd. | Dust and dirt separation assembly |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI95083C (en) * | 1993-03-26 | 1995-12-11 | Yritysgrafiikka Oy | Color Cartridge Cleaner |
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 |
-
2008
- 2008-04-10 SE SE0800814A patent/SE532389C2/en not_active IP Right Cessation
-
2009
- 2009-04-08 CA CA2721155A patent/CA2721155A1/en not_active Abandoned
- 2009-04-08 WO PCT/SE2009/050369 patent/WO2009126105A1/en active Application Filing
- 2009-04-08 EP EP09729279A patent/EP2269118A4/en not_active Withdrawn
- 2009-04-08 US US12/937,387 patent/US20110030841A1/en not_active Abandoned
- 2009-04-08 AU AU2009234497A patent/AU2009234497A1/en not_active Abandoned
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4162148A (en) * | 1975-09-23 | 1979-07-24 | Ltg Lufttechnische Gmbh | Filtering apparatus |
US4185669A (en) * | 1977-01-20 | 1980-01-29 | Alfa-Laval S.A. | Method and apparatus for filling a receptacle with powder |
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 |
US4825913A (en) * | 1986-08-28 | 1989-05-02 | Leslie Stott | 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 |
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 |
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 |
Also Published As
Publication number | Publication date |
---|---|
WO2009126105A1 (en) | 2009-10-15 |
SE532389C2 (en) | 2010-01-12 |
EP2269118A4 (en) | 2012-09-26 |
AU2009234497A1 (en) | 2009-10-15 |
CA2721155A1 (en) | 2009-10-15 |
EP2269118A1 (en) | 2011-01-05 |
SE0800814L (en) | 2009-10-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TFM SWEDEN AKTIEBOLAG, SWEDEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HAKANSSON, MIKAEL;REEL/FRAME:025127/0491 Effective date: 20101011 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |