WO2010048681A1 - Joint d'étanchéité pour cartouches de toner, photocopieuses et télécopieurs - Google Patents

Joint d'étanchéité pour cartouches de toner, photocopieuses et télécopieurs Download PDF

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Publication number
WO2010048681A1
WO2010048681A1 PCT/BE2008/000085 BE2008000085W WO2010048681A1 WO 2010048681 A1 WO2010048681 A1 WO 2010048681A1 BE 2008000085 W BE2008000085 W BE 2008000085W WO 2010048681 A1 WO2010048681 A1 WO 2010048681A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing film
face
longitudinal
support
assembly
Prior art date
Application number
PCT/BE2008/000085
Other languages
English (en)
Inventor
Alexander Van Betsbrugge
Zoran Szomolai
Original Assignee
Sealtek, S.R.O.
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 Sealtek, S.R.O. filed Critical Sealtek, S.R.O.
Priority to PCT/BE2008/000085 priority Critical patent/WO2010048681A1/fr
Publication of WO2010048681A1 publication Critical patent/WO2010048681A1/fr

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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
    • G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit
    • G03G15/0881—Sealing of developer cartridges
    • G03G15/0884—Sealing of developer cartridges by a sealing film to be ruptured or cut
    • 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
    • G03G15/0881—Sealing of developer cartridges
    • G03G15/0882—Sealing of developer cartridges by a peelable sealing film
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/06—Developing structures, details
    • G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
    • G03G2215/0687—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material using a peelable sealing film

Definitions

  • the present invention has for subject matter a sealing assembly facilitating the correct placement of a sealing member for sealing the toner passage of a cartridge, especially when re-conditioning used toner cartridge, such as cartridge provided with a feed roller compartment or a portion of such a compartment or a piece adapted to be connected to a feed roller compartment.
  • the invention aims an assembly suitable to place correctly and easily a sealing member onto a surface of a toner cartridge, whereby avoiding and/or limiting risk of incorrect opening or peeling off of the central tearing portion of the film, and/or detachment of the end portions of the film when exerting for example the initial tearing force.
  • the invention relates to an assembly to be used for sealing a toner passage in a surface of a toner hopper of a toner cartridge used in a dry toner style image forming apparatus, said assembly comprising at least : - a sealing film comprising at least two longitudinal edge portions, a central longitudinal tearing portion extending between said at least two longitudinal edge portions, and a pulling strip connected to said central longitudinal tearing portion, whereby said central portion is adapted to be torn off out of the sealing film by pulling on the pulling strip, so as to form an opening in said sealing film between the two longitudinal edge portions, whereby said sealing film has a first face intended to be directed towards the surface of the toner hopper when the sealing film seals the toner passage, and a second face opposite to said first face, whereby the pulling means has a connecting portion connecting the pulling means to the central longitudinal tearing portion, said connecting portion having a thickness ;
  • gluing means located along the first face of the sealing film, at least on the two longitudinal edges thereof, whereby the gluing means has an adhesion force on said first face of the sealing film;
  • a releasable protection film for protecting the said gluing means located along the first face of the sealing film, said releasable protection film having a cover face covering and contacting said gluing means, whereby said cover face is selected so that the adhesion force of the gluing means on said cover face is lower than the adhesion force of the gluing means on said first face of the sealing film;
  • said support comprises at least a first portion attached to the second face of the sealing film and a further longitudinal portion connected in a releasable manner to the first portion of the support, so that by exerting a pulling force on said further longitudinal portion with respect to the first portion of the support, said further longitudinal portion is detachable with respect to the first portion, and whereby the first portion of the support has a thickness at least greater that the thickness of the connecting portion of the pulling strip.
  • the central longitudinal tearing portion has a part adjacent to the connecting portion, said part having a maximum thickness, while the first portion of the support has a thickness at least greater than the thickness of the connecting portion of the pulling strip and at least greater than the said maximum thickness of the part of the central longitudinal tearing portion.
  • the central longitudinal tearing portion has a resistance to bending when being torn off from the sealing film, and in which the first portion of the support has a resistance to bending higher than the resistance to bending of the central tearing portion.
  • the first portion of the support has a guiding edge, said guiding edge acting, after the said further longitudinal portion of the support being detached from the first portion, for guiding at least partly at least one element selected from the group consisting of the connecting portion, the part of the pulling means adjacent to the connecting portion, and combinations thereof, at least when starting to tear the central longitudinal tearing portion of the sealing film out of the sealing film.
  • the support comprises at least one weakening element selected from the group consisting of cuts, grooves, holes, and combinations thereof for defining a weakening zone between the first portion and the further longitudinal portion of the support.
  • the support is for example made at least partly in cardboard, but can also be manufactured from other materials, such as plastic materials.
  • the support is advantageously a composite having at least one layer provided with low friction properties.
  • the sealing film is provided with cuts between a part of the central longitudinal tearing portion of the sealing film adjacent to the connecting portion and the two longitudinal edge portions of the sealing film. Such cuts are advantageous so as to lower the initial tearing force for tearing the central longitudinal tearing portion of the sealing film.
  • the releasable protection film has : - a first portion with a first face contacting the gluing means and a second face opposite to said first face,
  • the sealing film has a longitudinal length, while said second portion of the releasable film has a length greater than the said longitudinal length of the sealing film.
  • the further longitudinal portion of the support has an end edge adjacent to an element selected from the group consisting of the connecting portion of the pulling strip, a portion of the pulling strip adjacent to said connecting portion and a part of the central longitudinal tearing portion adjacent to the connecting portion.
  • the said end edge acts as element for defining a bending line of the pulling strip, whereby the pulling strip extends at least partly along the support. This is advantageous so as to prevent initial tearing of the central longitudinal tearing portion of the film, during the placement of the sealing film on the surface with the toner passage to be sealed.
  • the invention relates to an assembly to be used for sealing a toner passage in a surface of a toner hopper of a toner cartridge used in a dry toner style image forming apparatus, said assembly comprising at least : - a sealing film comprising at least two longitudinal edge portions, a central longitudinal tearing portion extending between said at least two longitudinal edge portions, and a pulling strip connected to said central longitudinal tearing portion, whereby said central portion is adapted to be torn off out of the sealing film by pulling on the pulling strip, so as to form an opening in said sealing film between the two longitudinal edge portions, whereby said sealing film has a first face intended to be directed towards the surface of the toner hopper when the sealing film seals the toner passage, and a second face opposite to said first face, whereby the pulling means has a connecting portion connecting the pulling means to the central longitudinal tearing portion, said connecting portion having a thickness ;
  • gluing means located along the first face of the sealing film, at least on the two longitudinal edges thereof, whereby the gluing means has an adhesion force on said first face of the sealing film;
  • a releasable protection film for protecting the said gluing means located along the first face of the sealing film, said releasable protection film having a cover face covering and contacting said gluing means, whereby said cover face is selected so that the adhesion force of the gluing means on said cover face is lower than the adhesion force of the gluing means on said first face of the sealing film;
  • said support comprises at least a first portion attached to the second face of the sealing film, a second portion attached to the second face of the sealing film, and a further longitudinal portion connected in a releasable manner to said first portion and said second portion of the support, so that by exerting a pulling force on said further longitudinal portion with respect to the first portion and second portion of the support, said further longitudinal portion is detachable with respect to the first portion, whereby the first portion is distant from the second portion, the first portion having an edge directed towards the second portion, while the second portion has an edge directed towards the first portion, so as to define a space between the first portion and the second portion at least after the further longitudinal portion being detached from the first portion and second portion, whereby said space is adapted to receive, before the tearing off the central longitudinal tearing portion of the sealing film, at least partly one element selected from the
  • the central longitudinal tearing portion has a part adjacent to the connecting portion, said part having a maximum thickness, while the first portion and the second portion of the support have each a thickness at least greater than the thickness of the connecting portion of the pulling strip and at least greater than the said maximum thickness of the part of the central longitudinal tearing portion.
  • the further longitudinal portion of the support comprises apart extending between the said first portion and the second portion, whereby said part is not glued to the second face of the sealing film.
  • the further longitudinal portion of the support comprises a part extending between the said first portion and the second portion, whereby said part is not glued to the second face of the sealing film, whereby said part is provided with an element selected from a layer, a film or a combination thereof, whereby the said part with the element has a thickness greater than the thickness of the said first and second portions of the support.
  • the further longitudinal portion of the support comprises a part extending between the said first portion and second portion of the support, said part being not attached to the sealing film, the first portion and the second portion of the support having respectively a longitudinal edge directed towards each other, while the said part extending between the said first and second portions of the support has : - a first longitudinal edge directed towards a longitudinal of the first portion separated from said first longitudinal edge by an element selected from the group consisting of a cut, a groove or a combination thereof, and
  • the further longitudinal portion of the support comprises a part extending between the said first portion and second portion of the support, said part being not attached to the sealing film, the first portion and the second portion of the support having respectively a longitudinal edge directed towards each other, while the said part extending between the said first and second portions of the support has :
  • the central longitudinal tearing portion has a resistance to bending when being torn off from the sealing film, while the first portion and the second portion of the support have each a resistance to bending higher than the resistance to bending of the central tearing portion.
  • the sealing film has a resistance to bending, and in which the first portion and the second portion of the support have each a resistance to bending higher than the resistance to bending of the sealing film.
  • the first portion and the second portion of the support have each a guiding edge, said guiding edges acting, after the said further longitudinal portion of the support being detached from the first portion, for guiding at least partly at least one element selected from the group consisting of the connecting portion, the part of the pulling means adjacent to the connecting portion, and combinations thereof, at least when starting to tear the central longitudinal tearing portion of the sealing film out of the sealing film.
  • the support comprises at least one first weakening element selected from the group consisting of cuts, grooves, holes, and combinations thereof for defining a weakening zone between the first portion and the further longitudinal portion of the support, and at least one second weakening element selected from the group consisting of cuts, grooves, holes, and combinations thereof for defining a weakening zone between the first portion and the further longitudinal portion of the support.
  • the sealing film is provided with cuts between a part of the central longitudinal tearing portion of the sealing film adjacent to the connecting portion and the two longitudinal edge portions of the sealing film.
  • the releasable protection film has : - a first portion with a first face contacting the gluing means and a second face opposite to said first face,
  • the sealing film has a longitudinal length, while said second portion of the releasable film has a length greater than the said longitudinal length of the sealing film.
  • the further longitudinal portion of the support has an end edge adjacent to an element selected from the group consisting of the connecting portion of the pulling strip, a portion of the pulling strip adjacent to said connecting portion and a part of the central longitudinal tearing portion adjacent to the connecting portion.
  • the said end edge acts as element for defining a bending line of the pulling strip, whereby the pulling strip extends at least partly along the support.
  • the invention further relates to an assembly to be used for sealing a toner passage in a surface of a toner hopper of a toner cartridge used in a dry toner style image forming apparatus, said assembly comprising at least :
  • a sealing film comprising at least two longitudinal edge portions, a central longitudinal tearing portion extending between said at least two longitudinal edge portions, and a pulling strip connected to said central longitudinal tearing portion, whereby said central portion is adapted to be torn off out of the sealing film by pulling on the pulling strip, so as to form an opening in said sealing film between the two longitudinal edge portions, whereby said sealing film has a first face intended to be directed towards the surface of the toner hopper when the sealing film seals the toner passage, and a second face opposite to said first face, said second face of the sealing film being directed towards the first face of the insert, whereby the pulling means has a connecting portion connecting the pulling means to the central longitudinal tearing portion, said connecting portion having a thickness ; - means for attaching the second face of the sealing film to the insert, - gluing means located along the first face of the sealing film, at least on the two longitudinal edges thereof, whereby the gluing means has an adhesion force on said first face of the sealing film;
  • a releasable protection film for protecting the said gluing means located along the first face of the sealing film, said releasable protection film having a cover face covering and contacting said gluing means, whereby said cover face is selected so that the adhesion force of the gluing means on said cover face is lower than the adhesion force of the gluing means on said first face of the sealing film;
  • said support comprises at least a first portion attached to the second face of the sealing film, a second portion attached to the second face of the sealing film, and a further longitudinal portion connected in a releasable manner to said first portion and said second portion of the support, so that by exerting a pulling force on said further longitudinal portion with respect to the first portion and second portion of the support, said further longitudinal portion is detachable with respect to the first portion, whereby the first portion is distant from the second portion, the first portion having an edge directed towards the second portion, while the second portion has an edge directed towards the first portion, so as to define a space between the first portion and the second portion at least after the further longitudinal portion being detached from the first portion and second portion, whereby said space is adapted to receive, before the tearing off the central longitudinal tearing portion of the sealing film, at least partly one element selected from the
  • a further object of the invention is an assembly to be used for sealing a toner passage in a surface of a toner hopper of a toner cartridge used in a dry toner style image forming apparatus, said assembly comprising at least :
  • a sealing film comprising at least two longitudinal edge portions, a central longitudinal tearing portion extending between said at least two longitudinal edge portions, and a pulling strip connected to said central longitudinal tearing portion, whereby said central portion is adapted to be torn off out of the sealing film by pulling on the pulling strip, so as to form an opening in said sealing film between the two longitudinal edge portions, whereby said sealing film has a first face intended to be directed towards the surface of the toner hopper when the sealing film seals the toner passage, and a second face opposite to said first face, whereby the pulling means has a connecting portion connecting the pulling means to the central longitudinal tearing portion, said connecting portion having a thickness ;
  • gluing means located along the first face of the sealing film, at least on the two longitudinal edges thereof, whereby the gluing means has an adhesion force on said first face of the sealing film;
  • a releasable protection film for protecting the said gluing means located along the first face of the sealing film, said releasable protection film having a cover face covering and contacting said gluing means, whereby said cover face is selected so that the adhesion force of the gluing means on said cover face is lower than the adhesion force of the gluing means on said first face of the sealing film;
  • the releasable protection film has :
  • the sealing film has a longitudinal length, and in which said second portion of the releasable film has a length greater than the said longitudinal length of the sealing film.
  • Still a further subject matter of the invention is a support as disclosed here above or in the figures, said support being advantageously provided with a gluing means protected by a releasable protection film, whereby after pulling the releasable protection film, said gluing means are adapted for attaching a part or parts of the support to the sealing film or to a foam insert connected to the sealing film.
  • the invention further relates to a process for sealing a toner passage in a surface of a toner hopper of a toner cartridge in which one assembly according to any one of the preceding claims, which comprises at least the following steps:
  • the process is especially suitable for sealing toner cartridge provided with at least partly a feed roller compartment, whereby a part of the sealing film has to be inserted into a passage extending between the toner container and the feed roller compartment.
  • the process is further suitable for sealing toner cartridge provided with at least partly a feed roller compartment, whereby the toner cartridge is provided with two passages extending between the toner cartridge and the feed roller portion, whereby the seal assembly is engaged through a first passage so as to cover the toner passage of the toner container, before being inserted into the second passage, whereby the first and second portions of the support are engaged in one of said passage.
  • the second portion of the releasable protection film is pulled so as to ensure the gluing of the sealing film onto the surface with the toner passage, whereby ensuring the sealing of said toner passage.
  • a pulling force is now exerted on the further longitudinal portion of the support, whereby said longitudinal portion is detached from the first and second portions of the support which remain into one passage between the toner container and the feed roller compartment.
  • the invention further relates to a toner container provided with a sealing film with the remaining parts of the support, namely first and second portions of the support.
  • Fig IA and IB are schematic perspective views of a preferred assembly of the invention.
  • Fig 2 is a cross section view along the line II-II of the embodiment of figure 1;
  • Fig 3 is a cross section view along the line IH-III of the embodiment of figure 1;
  • Fig 4 is a cross section view along the line III-III of the embodiment of figure 1 ;
  • Fig 5 is an exploded view of the assembly of fig 1;
  • Fig 6 is an enlarged view of an end of the support of the embodiment of figure 1 ;
  • Fig 7A to 7E are schematic views explaining one possible method of placement of the sealing film on a toner container provided with a feed roller compartment;
  • Fig 8 is an exploded view of another assembly of the invention
  • Fig 9 is a further view of another assembly of the invention
  • Fig 10 to 12 are views of further embodiments similar to the embodiment of figure 9, and
  • Fig 13 A to 13D are views similar to Fig 7E for the embodiments of Fig 9 to 12.
  • Fig 1 to 5 relate to a first preferred embodiment.
  • the assembly 1 to be used for sealing a toner passage in a surface of a toner hopper of a toner cartridge used in a dry toner style image forming apparatus, said assembly comprising at least:
  • a sealing film 2 comprising at least two longitudinal edge portions 2A,2B, a central longitudinal tearing portion 3 extending between said at least two longitudinal edge portions 2A,2B, and a pulling strip 4 connected to said central longitudinal tearing portion 3, whereby said central portion 3 is adapted to be torn off out of the sealing film 2 by pulling on the pulling strip 4, so as to form an opening in said sealing film between the two longitudinal edge portions 2A,2B, whereby said sealing film 2 has a first face 5 intended to be directed towards the surface of the toner hopper when the sealing film 2 seals the toner passage, and a second face 6 opposite to said first face 5, whereby the pulling means or strip 4 has a connecting portion 4A connecting the pulling means 4 to the central longitudinal tearing portion 3 of the sealing film 2, said connecting portion 4A having a thickness E4A ; - gluing means 7 located along the first face 5 of the sealing film 2, at least on the two longitudinal edges 2A,2B thereof, as well as on the end 3 A,3B of the tearing portion 3,
  • a releasable protection film 8 for protecting the said gluing means 7 located along the first face 5 of the sealing film 2, said releasable protection film 8 having a cover face 8A covering and contacting said gluing means 7, whereby said cover face 8 A is selected so that the adhesion force of the gluing means 7 on said cover face 8 A is lower than the adhesion force of the gluing means 7 on said first face 5 of the sealing film 2;
  • the central longitudinal tearing portion 3 has a part 3B adjacent to the connecting portion 4A, said part3B having a maximum thickness.
  • the first portion 9A and the second portion 9B of the support 9 have each a thickness at least greater than the thickness E4A of the connecting portion 4 A of the pulling strip 4 and at least greater than the said maximum thickness of the part 3B of the central longitudinal tearing portion 3.
  • the further longitudinal portion 9C of the support 9 comprises a part 9D extending between the said first portion 9A and the second portion 9B 5 whereby said part 9D is not glued to the second face 6 of the sealing film 3. Said part 9D extends between the portions 9A,9B before the part 9C is detached from the portions 9A,9B.
  • the said part 9D has a thickness greater than the thickness of the said first and second portions 9A,9B of the support 9.
  • a two side glue tape 11 is used for attaching the portions 9A,9B to the face 6 of the sealing film 2.
  • Said tape 11 is divided into three portions 1 IA 5 I IB 3 I ID, the portion 1 IA gluing the first portion 9 A onto the face 6 of the sealing film 2, while the portion 1 IB glues the second portion 9B onto the face 6 of the sealing film 2.
  • the portion 1 ID is glued on the part 9D of the longitudinal portion 9C.
  • the protection film 12 of the portion 1 ID of the two side tape 11 is not removed, so as to prevent the portion 1 ID to glue the part 9D onto the sealing film 2.
  • Said protection film 12 generates an increase of thickness for the part 9D with respect to the portions 9A,9B. Said slight increase of thickness is advantageous for detaching the portion 9C with respect to the portions 9A,9B
  • the said part 9D extending between the said first and second portions 9A,9B of the support 9 has :
  • Said cuts 13,15 extend partly in a part 9E of the further longitudinal portion 9C of the support 9 not in front of the said first portion 9A and the second portion 9B.
  • the sealing film 2 has a resistance to bending.
  • the first portion and the second portion 9A,9B of the support have each a resistance to bending higher than the resistance to bending of the sealing film.
  • the first and second portion of the support 9 which are glued to the sealing film are thus adapted for increasing the resistance of the film 2 at said end.
  • the first portion 9 A and the second portion 9B of the support 9 have each a guiding edge 10,11, said guiding edges 10,11 acting, after the said further longitudinal portion 9C of the support being detached from the first portion and second portion, for guiding at least partly the connecting portion 4A, the part of the pulling means adjacent to the connecting portion, and the end 3B of the central tearing portion 3, at least when starting to tear the central longitudinal tearing portion 3 of the sealing film 2 out of the sealing film 2.
  • the support 9 comprises at least one first weakening element 16 selected from the group consisting of cuts, grooves, holes, and combinations thereof for defining a weakening zone between the first portion 9A and the further longitudinal portion 9C of the support, and at least one second weakening element 17 selected from the group consisting of cuts, grooves, holes, and combinations thereof for defining a weakening zone between the second portion 9B and the further longitudinal portion 9C of the support.
  • the support 9 is made for example at least partly in cardboard.
  • the sealing film 2 is provided with cuts 18 between a part (end part 3B) of the central longitudinal tearing portion of the sealing film adjacent to the connecting portion 4 A and the two longitudinal edge portions 2A,2B of the sealing film 2.
  • the releasable protection film 8 has : - a first portion 8A with a first face contacting the gluing means 7 and a second face opposite to said first face, - a second portion bendable 8B with respect to the first portion 8A, so as to be adapted to extend along the second face of the first portion 8 A, said second portion 8B forming a pulling means for removing the first portion 8A from the sealing film 2.
  • the second portion 8B of the releasable film 8 has a length greater than the said longitudinal length of the sealing film 2.
  • the part 9D has an end edge 20 acting as an element for defining a bending line of the pulling strip 4, when the pulling strip extends at least partly along the support.
  • Figures 7A to 7G show various steps for resealing a toner passage TP of a toner cartridge TC provided with a feed roller compartment FRC, whereby passages P1,P2 are defined between the toner container TC and the Feed roller compartment FRC.
  • the sealing film 2 extends above the toner passage TP.
  • the connecting portion 4 A is located in the free space between the remaining end portions 9A,9B of the support 9. (see figure 7E) The initial tearing is this manner guided and facilitated, while the end portions 9A,9B prevent the film 2 to be released from the toner container.
  • the assembly can also be used for the re-sealing of toner cartridge not provided with feed roller compartment.
  • Figure 8 is a view of an assembly similar to the assembly shown in figure 5, except that the sealing film is provided with a foam insert 21 with a central slot 22.
  • the pulling strip extends along the sealing film 2.
  • the support is now attached to the foaming insert 21, the portions 9A,9B being attached to the foam insert.
  • the foam insert is advantageously provided with a cleaning means 23 for removing toner particles possibly present when pulling the central portion 3 of the film.
  • Figure 9 is a view of a further embodiment, in which the support 9 is provided with extended first and second portions 9A,9B, whereby a part 90 of said extended portions 9A,9B extend outside the film 2 and are adapted to extend outside the passage Pl when inserting the assembly as shown in Figure 7B.
  • Said parts 90 extending outside the passage Pl, as well as the part of the support 9 extending outside the passage P2 are suitable for exerting a force for applying the sealing film onto the surface with the toner passage.
  • Said parts 90 are then advantageously bent so as to form further fixing points for maintaining the end of the sealing film 2 into the passage Pl, during the pulling off of the releasable film 8 and during the detachment of the portion 9C of the support.
  • Said parts 90 can thereafter be detached by the weakening line 91.
  • the part 90 of the portions 9A,9B is intended to be bent and glued (glue layer 100) on a face of the toner container TC or on a face of the feed roller compartment (see figure 13A)
  • Figure 10 is a view of an embodiment similar to the embodiment of Fig 9, except that the portions 9A and 9B are not provided with a weakening zone or a bending zone 91.
  • the portions 9A,9B are intended to extend within the passage Pl between the toner container TC and the feed roller compartment FRC, and partly between the inner volume 101 of the feed roller compartment and the toner container TC.
  • each portion 9A,9B are shaped so as to facilitate the introduction of the portions in the passage Pl .
  • the lateral edges 102,103 of the end parts of the portions 9A,9B have been cut , so that the total width W defined between the opposite lateral edges 102 of the portions 9A,9B is reduced at the free end thereof. (see figure 13B)
  • the embodiment of figure 11 is similar to the embodiment of figure 10, except that the end part 90 of each portions 9A,9B is provided with a glue layer 103, and that the releasable protection film 8 has his part 8 A covering said glue layer 103 when the assembly 1 is placed above the toner container.
  • a pulling force is exerted on the portion 8B of the releasable protection film (for example siliconized paper), so as to first attach the parts 90 of the portions 9A,9B onto a face of the container TC, before attaching the sealing film 2 onto the toner container for sealing the toner passage, (see figure 13C).
  • the embodiment of figure 12 is similar to the embodiment of figure 10, except that the parts 90 of the portions 9A,9B are connected by a bridge portion 105, such a bridge portion 105 increasing the rigidity of the end parts 90, as well as preventing possible movement of one part of a portion 9A with respect to the other part 90 of the other portion 9B.
  • Fig 13D shows the placement of the said parts and bridge 105 into the passage Pl.

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  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

L'invention concerne un ensemble (1) destiné à être utilisé pour obturer un passage de toner dans une surface d'une trémie de toner d'une cartouche de toner que l'on utilise dans un appareil de formation d'image du type à sec, ledit ensemble comportant au moins : un film d'étanchéité (2) ; un support longitudinal (9) attaché au film d'étanchéité (2) ; ledit support (9) comportant au moins une première partie (9A) attachée au film d'étanchéité (2) et une autre partie longitudinale (9C) raccordée d'une manière libérable à la première partie (9A) du support (9).
PCT/BE2008/000085 2008-10-27 2008-10-27 Joint d'étanchéité pour cartouches de toner, photocopieuses et télécopieurs WO2010048681A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/BE2008/000085 WO2010048681A1 (fr) 2008-10-27 2008-10-27 Joint d'étanchéité pour cartouches de toner, photocopieuses et télécopieurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BE2008/000085 WO2010048681A1 (fr) 2008-10-27 2008-10-27 Joint d'étanchéité pour cartouches de toner, photocopieuses et télécopieurs

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WO2010048681A1 true WO2010048681A1 (fr) 2010-05-06

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PCT/BE2008/000085 WO2010048681A1 (fr) 2008-10-27 2008-10-27 Joint d'étanchéité pour cartouches de toner, photocopieuses et télécopieurs

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030012581A1 (en) * 2001-07-10 2003-01-16 Jan De Kesel Tearable sealing member
US20060204274A1 (en) * 2005-03-09 2006-09-14 Static Control Components, Inc. Toner cartridge seal assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030012581A1 (en) * 2001-07-10 2003-01-16 Jan De Kesel Tearable sealing member
US20060204274A1 (en) * 2005-03-09 2006-09-14 Static Control Components, Inc. Toner cartridge seal assembly

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