WO2016114203A1 - 粉体収納容器及び画像形成装置 - Google Patents
粉体収納容器及び画像形成装置 Download PDFInfo
- Publication number
- WO2016114203A1 WO2016114203A1 PCT/JP2016/050279 JP2016050279W WO2016114203A1 WO 2016114203 A1 WO2016114203 A1 WO 2016114203A1 JP 2016050279 W JP2016050279 W JP 2016050279W WO 2016114203 A1 WO2016114203 A1 WO 2016114203A1
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- WIPO (PCT)
- Prior art keywords
- container
- powder
- toner
- cap member
- insertion direction
- Prior art date
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Classifications
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- 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
- G03G15/0865—Arrangements for supplying new developer
- G03G15/0867—Arrangements for supplying new developer cylindrical developer cartridges, e.g. toner bottles for the developer replenishing opening
- G03G15/087—Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
-
- 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
- G03G15/0865—Arrangements for supplying new developer
- G03G15/0867—Arrangements for supplying new developer cylindrical developer cartridges, e.g. toner bottles for the developer replenishing opening
- G03G15/087—Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
- G03G15/0872—Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge the developer cartridges being generally horizontally mounted parallel to its longitudinal rotational axis
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- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1661—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
- G03G21/1676—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the developer unit
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- 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
- G03G2215/0663—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
- G03G2215/0665—Generally horizontally mounting of said toner cartridge parallel to its longitudinal rotational axis
- G03G2215/0668—Toner discharging opening at one axial end
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
- G03G2221/1654—Locks and means for positioning or alignment
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
- G03G2221/1657—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts transmitting mechanical drive power
Definitions
- the present invention relates to a powder container and an image forming apparatus.
- a toner container for storing toner used in an image forming apparatus can be attached to and detached from the main body of the image forming apparatus, and when there is no toner to be stored inside, it is replaced with a toner container for storing new toner. What to do is known.
- Patent Document 1 describes a toner container having a drive gear that protrudes outward from a cylindrical outer peripheral surface.
- the toner container is set in the image forming apparatus so that the central axis of the columnar shape is in a horizontal state, and is driven by a drive gear to be driven to rotate, whereby the toner inside is transferred from one end side to the other end side. Transport towards
- the invention of claim 1 has a powder storage portion for storing powder, and the drive output portion of the image forming apparatus is driven to rotate in a state of being set in the image forming apparatus.
- the image forming apparatus In the powder storage container in which the powder storage section or the rotating member disposed inside the powder storage section rotates by being input, the image forming apparatus is parallel to the rotation center line of the rotation drive.
- a container side engaging portion is provided on the end surface facing the downstream side in the inserting direction, and the container side engaging portion projects toward the upstream side in the inserting direction of the drive output portion.
- the drive output unit rotates while the container side engaging portion and the main body side protruding portion are engaged with each other. It is characterized by being input.
- FIG. 3 is an enlarged perspective view of the vicinity of the downstream end portion in the insertion direction of the toner container of the embodiment.
- 1 is a schematic configuration diagram of a copier according to an embodiment.
- 1 is a schematic configuration diagram of a developing device and a toner replenishing device according to an embodiment.
- FIG. 6 is a perspective explanatory view of the toner container of the reference configuration example as viewed from the front end side in the insertion direction.
- FIG. 4 is an exploded perspective view of a toner container of a reference configuration example.
- FIG. 5 is an enlarged perspective view of the vicinity of the downstream end portion in the insertion direction of the toner container of the reference configuration example in which the outer lid and the inner lid are removed from the state of FIG. 4.
- FIG. 4 is a side sectional view of a cross section passing through a cylindrical center line of a toner container of a reference configuration example.
- FIG. 6 is an enlarged side view of the vicinity of the downstream end in the insertion direction of only the container main body with the cap member removed from the toner container of the reference configuration example.
- the perspective view which looked at the cap member of a reference structural example from the other end side (insertion direction downstream side).
- the perspective view which looked at the cap member of a reference structural example from the one end side (insertion direction upstream side).
- the front view which looked at the cap member of a reference structural example from the other end side insertion direction downstream side).
- the side view of the cap member of a reference structural example. 4 is an enlarged side cross-section near the downstream end of the toner container of the reference configuration example in the insertion direction.
- the perspective view which looked at the container storage part which concerns on embodiment from the insertion direction upstream.
- the front view which looked at the output side drive member which concerns on embodiment from the insertion direction upstream.
- the perspective view which looked at the output side drive member concerning an embodiment from the insertion direction upstream.
- the side view of the output side drive member which concerns on embodiment.
- the perspective view which looked at the cap member of the Example from the other end side (insertion direction downstream side).
- the front view which looked at the cap member of the Example from the other end side insertion direction downstream side).
- the side view of the cap member and output side drive member of an Example The expanded cross section with the incompatibility protrusion and the front end surface of the cap member of the Example in which the incompatible hole was formed.
- the perspective view which looked at the cap member of a modification from the other end side (insertion direction downstream side).
- the front view which looked at the cap member of the modification from the other end side (insertion direction downstream side).
- FIG. 2 is a schematic configuration diagram illustrating a schematic configuration of a copying machine 500 as an image forming apparatus to which the present invention can be applied.
- the copying machine 500 includes a printer unit 600, a paper feed table 700 on which the printer unit 600 is placed, and a scanner 300 fixed on the printer unit 600.
- An automatic document feeder 400 fixed on the scanner 300 is also provided.
- the copier 500 in this embodiment is a so-called tandem image forming apparatus.
- the copier 500 receives image data that is image information read from the scanner 300 and print data from an external device such as a personal computer, and forms an image on a sheet P that is a recording medium.
- the printer unit 600 includes a drum-shaped photoreceptor that is four latent image carriers for each color of yellow (Y), magenta (M), cyan (C), and black (Bk). 1 (Y, M, C, Bk) are juxtaposed. These photoreceptors 1 (Y, M, C, Bk) are arranged side by side along the belt moving direction so as to contact the endless belt-like intermediate transfer belt 5.
- each photoconductor 1 there are a charger 2 (Y, M, C, Bk), a developing device 9 (Y, M, C, Bk) corresponding to each color, and a photoconductor cleaning device 4 (Y, M, Bk). C, Bk), static elimination lamps 3 (Y, M, C, Bk) and the like are arranged in the order of processes.
- An optical writing device 17 is provided above the four photosensitive members 1. Further, primary transfer rollers 6 (Y, M, C, Bk) are arranged at positions facing the photoconductor 1 through the intermediate transfer belt 5.
- the intermediate transfer belt 5 is stretched around three support rollers (11, 12, 13) and a tension roller 14, and is driven to rotate by rotation of a driving roller 12 that is driven to rotate by a driving source.
- a belt cleaning device 19 is provided at a position facing the cleaning facing roller 13 via the intermediate transfer belt 5, and removes residual toner remaining on the intermediate transfer belt 5 after the secondary transfer.
- the secondary transfer counter roller 11, which is one of the support rollers, is a roller that faces the secondary transfer roller 7, and a secondary transfer nip portion between the secondary transfer roller 7 and the intermediate transfer belt 5.
- a sheet conveying belt 15 stretched around the support roller pair 16 is provided downstream of the secondary transfer nip portion in the sheet conveying direction, and conveys the sheet P onto which the toner image has been secondarily transferred to the fixing device 18.
- the fixing device 18 includes a fixing roller pair 8 including a heating roller and a pressure roller, and heat and pressure are applied at the fixing nip portion to fix an unfixed toner image on the sheet P.
- a document is set on the document table 401 of the automatic document feeder 400.
- the automatic document feeder 400 is opened, a document is set on the contact glass 301 of the scanner 300, and the automatic document feeder 400 is closed and pressed.
- the document is conveyed onto the contact glass 301.
- the scanner 300 is driven and the first traveling body 302 and the second traveling body 303 start traveling.
- the light emitted from the first traveling body 302 is reflected by the document on the contact glass 301, and the reflected light is reflected by the mirror of the second traveling body 303 and guided to the reading sensor 305 through the imaging lens 304. Is done. In this way, the image information of the original is read.
- the motor is driven, the drive roller 12 is driven to rotate, and the intermediate transfer belt 5 is driven to rotate.
- the yellow photoconductor 1Y is uniformly charged by the yellow charger 2Y while being driven to rotate in the direction of the arrow in the drawing by the photoconductor driving device.
- a yellow light beam Ly from the optical writing device 17 is irradiated to form a Y electrostatic latent image on the yellow photoreceptor 1Y.
- This Y electrostatic latent image is developed by the yellow developing device 9Y using Y toner in the developer.
- a predetermined developing bias is applied to the developing roller, and the Y toner on the developing roller is electrostatically attracted to the Y electrostatic latent image portion on the yellow photoreceptor 1Y.
- the Y toner image developed and developed in this way is conveyed to the primary transfer position where the yellow photoconductor 1Y and the intermediate transfer belt 5 are in contact with the rotation of the yellow photoconductor 1Y.
- a predetermined bias voltage is applied to the back surface of the intermediate transfer belt 5 by the yellow primary transfer roller 6Y.
- the Y toner image on the yellow photoconductor 1Y is drawn toward the intermediate transfer belt 5 and is primarily transferred onto the intermediate transfer belt 5.
- the M toner image, the C toner image, and the Bk toner image are primary-transferred so as to be sequentially superimposed on the intermediate transfer belt 5 on which the Y toner image is formed.
- the paper feed roller 702 corresponding to the sheet selected by the user in the paper feed table 700 rotates and the sheet P is sent out from one of the paper feed cassettes 701.
- the sheet P is separated into one sheet by the separation roller 703, enters the paper feed path 704, is transported to the printer section paper feed path 601 provided in the printer section 600 by the transport roller pair 705, and hits the registration roller pair 602. You can stop where you are.
- the sheet P is set on the manual feed tray 605, the sheet P is sent out by the manual feed roller 604 and separated into one sheet by the manual separation roller 608. Thereafter, the sheet is conveyed through the manual sheet feed path 603 and stopped when it hits the registration roller pair 602.
- the composite toner image formed by transferring a plurality of colors on the intermediate transfer belt 5 is conveyed to a secondary transfer position facing the secondary transfer roller 7 as the intermediate transfer belt 5 rotates.
- the registration roller pair 602 starts rotating in accordance with the timing at which the composite toner image formed on the intermediate transfer belt 5 is conveyed to the secondary transfer position, and conveys the sheet P to the secondary transfer position.
- a predetermined bias is applied to the back surface of the sheet P by the secondary transfer roller 7, and the intermediate transfer belt 5 is applied by the secondary transfer electric field generated by the bias application and the contact pressure at the secondary transfer position.
- the upper composite toner image is secondarily transferred onto the sheet P at once.
- the sheet P onto which the composite toner image has been secondarily transferred is conveyed to the fixing device 18 by the sheet conveying belt 15 and is subjected to fixing processing by the fixing device 18.
- the sheet P on which the fixing process has been performed is discharged and stacked on a discharge tray 607 provided outside the apparatus by a pair of discharge rollers 606.
- the transfer residual toner remaining on the intermediate transfer belt 5 after the secondary transfer is removed by the belt cleaning device 19.
- the toner replenishing device 70 that is a powder conveying device that conveys the toner in the toner container 100 to the developing device 9 will be described. Since the toner corresponding to each color is supplied to the four developing devices 9 (Y, M, C, Bk) by the toner replenishing device 70 having the same configuration, hereinafter, reference symbols Y, M, C, Bk will be omitted for explanation.
- FIG. 3 is an explanatory diagram showing an outline of the developing device 9 and the toner replenishing device 70.
- the replenisher stored in the toner container 100 and replenished to the developing device 9 by the toner replenishing device 70 is a mixture of toner and carrier, but is configured to replenish only toner. Also good.
- the toner replenishing device 70 includes a toner receiving unit 60, a diaphragm pump 30, and a sub hopper 20.
- a toner container 100 which is a replenisher container that can be attached to and detached from the printer unit 600, is connected to the toner receiving unit 60.
- the toner container 100 has a spiral conveyance groove 113 formed so as to protrude inward of a hollow cylindrical shape, and the toner container 100 is driven to rotate, whereby the stored replenisher is moved to the discharge port 114 side. Transport. Then, the replenishment agent conveyed to the discharge port 114 is supplied into the storage device 61 from the introduction port 64 formed in the storage device 61 of the toner receiving unit 60.
- the replenisher in the container 61 is sucked together with air by the diaphragm pump 30 which is a powder transport pump, passes through the tube 53, and is supplied into the sub hopper 20.
- the replenisher supplied to the sub hopper 20 that temporarily stores the replenisher reaches the toner discharge opening 23 by the rotation of the conveying screw 22 in the sub hopper 20 and replenishes the developing device 9 through the toner duct 54. Is done.
- the developing device 9 includes a developing roller 92 that carries and conveys a two-component developer composed of toner and a carrier to a developing region facing the photoreceptor 1, and an agitating and conveying screw that agitates and conveys the developer supplied to the developing roller 92. 93.
- a toner density sensor is attached to the developing device 9, and when the toner in the developing device 9 is consumed, the toner density sensor detects a decrease in toner density. Then, the replenishment agent containing the amount of toner consumed from the sub hopper 20 is replenished, and the toner concentration in the developing device 9 is kept constant.
- the toner and the carrier are mixed as described above, and when the replenisher is replenished into the developing device 9, the external additive added to the toner is added together with the toner. And the carrier also enter the developing device 9. Since the carrier is not consumed in the developing unit, the carrier increases, but overflows and is discharged when the level becomes a certain level or more by the discharge port provided in the developing device 9.
- the toner container 100 will be described.
- the toner stored in the toner container 100 is not limited to the toner, but may include a carrier like the above-described replenisher.
- FIG. 4 is a perspective explanatory view of the toner container 100 of the reference configuration example as viewed from the distal end side in the insertion direction (downstream side in the insertion direction).
- An arrow ⁇ direction in FIG. 4 is an insertion direction of the toner container 100.
- the toner container 100 includes a container body 101 and a cap member (cover member) 102.
- the container body 101 stores toner.
- the container main body 101 has a columnar shape, and one end side in the central axis direction of the columnar shape is a bottom portion 112 and is blocked. On the other end side in the central axis direction of the container main body 101, an opening which is a later-described discharge port 114 for discharging the toner stored therein is provided.
- the cap member 102 covers the outer periphery of the tip on the other end side of the container body 101.
- the outer lid 103 is attached to the toner container 100 when the toner container 100 is not used, such as when the toner container 100 is transported or stored, and covers the discharge port 114 for discharging the toner in the container body 101.
- the container body 101 is provided with a conveyance groove 113 as conveyance means for conveying the toner to be stored.
- the toner container 100 is inserted into the copying machine 500 with the cap member 102 side at the top.
- the cap member 102 side (the other end side) in the toner container 100 is defined as the downstream side in the insertion direction
- the bottom 112 side (one end side) opposite to the cap member 102 in the longitudinal direction is defined as the upstream side in the insertion direction.
- the upstream side in the toner transport direction is the upstream side in the insertion direction
- the downstream side in the transport direction is the downstream side in the insertion direction.
- a direction orthogonal to the central axis of the cylindrical container body 101 is referred to as a radial direction.
- a direction toward the central axis in the radial direction is referred to as a central direction, and a direction toward the outer periphery of the container body 101 is referred to as an outer peripheral direction.
- FIG. 5 is an exploded perspective view of the toner container 100 of the reference configuration example. As shown in FIG. 5, in addition to the cap member 102, a discharge member 107, an inner lid 106, and an outer lid 103 are attached to the container main body 101. 6 is an enlarged perspective view of the vicinity of the downstream end portion in the insertion direction of the toner container 100 with the outer lid 103 and the inner lid 106 removed from the state of FIG.
- the container main body 101 is provided with an opening 108 that protrudes toward the downstream side in the insertion direction.
- the tip of the opening 108 is a discharge port 114 for discharging the internal toner.
- the opening 108 is cylindrical, and a discharge member 107 is fitted inside the opening 108 (inner wall surface). Further, before use, the inner lid 106 covering the discharge port 114 is fitted into the opening 108.
- the outer lid 103 is a screw lid that is detachably provided so as to cover the discharge port 114.
- an outer lid stopper 109 is provided on the outer periphery of the opening 108 so as to project spirally along the outer periphery so that the outer lid 103 functions as a screw lid.
- the outer lid 103 is attached to the opening 108 by engaging the spiral groove cut in the inner periphery of the outer lid 103 with the outer lid stopper 109.
- the cap member 102 has an opening at the center in the radial direction, and as shown in FIGS. 5 and 6, the opening 108 of the container body 101 protrudes from the opening. It is configured.
- the cap member 102 of the reference configuration example is provided with a drive receiving portion 110 on the outer periphery thereof.
- an incompatible hole group 111 configured by a combination of a plurality of incompatible holes (through holes and depressions) is provided as an incompatible part on the end surface on the downstream side in the insertion direction.
- the incompatible hole group 111 includes an outer peripheral side incompatible hole group 111a and an inner peripheral side incompatible hole group 111b, and the outer peripheral side incompatible hole group 111a and the inner peripheral side incompatible hole group 111b are cylindrical toner containers.
- a plurality of holes are formed on concentric circles centering on the central axis of 100.
- the incompatibility is a configuration for identifying the toner container 100 so that the toner container 100 is not erroneously inserted with respect to, for example, the color and characteristics of the stored toner and the difference in the model of the image forming apparatus main body.
- FIG. 7 is a side cross-sectional view of a cross section passing through the cylindrical center line of the toner container 100 of the reference configuration example.
- An arrow ⁇ in FIG. 7 indicates an outline of the flow of toner stored in the container main body 101.
- a container pumping part 115 whose outer periphery protrudes radially inward is provided in the vicinity of the opening 108 of the container main body 101.
- the container pumping unit 115 lifts the toner transported to the container pumping unit 115 as it rotates, from the lower side to the upper side, delivers the toner lifted to the discharge member 107, and transports the toner to the discharge port 114.
- FIG. 8 is an enlarged side view of the vicinity of the downstream end in the insertion direction of only the container main body 101 with the cap member 102 removed from the toner container 100 of the reference configuration example
- FIG. 9 shows only the container main body 101 of the reference configuration example. It is an expansion perspective view of the insertion direction downstream end vicinity.
- a cylindrical opening base 120 is provided between the opening 108 of the container body 101 and the container pumping part 115.
- a retaining projection 116, a circumference determining projection 118, an axial direction regulating projection 119 and a circumferential direction regulating projection 117 are provided on the outer peripheral surface of the opening base 120.
- the retaining protrusion 116 has an inclined surface that increases from the downstream side in the insertion direction of the opening base 120 toward the upstream side, and the upstream side in the insertion direction has a surface that is perpendicular to the inner side in the radial direction.
- the circumference determining projection 118 is a projection extending in the insertion direction, and the height (projection amount) is constant.
- the axial restricting projection 119 includes a surface that rises vertically from the downstream side in the insertion direction with a gap (a space in which the retaining rib 121 of the cap member 102 is sandwiched) from the upstream end of the retaining projection 116 in the insertion direction. .
- the circumferential restriction protrusion 117 is a protrusion having a surface that is on the same plane as the surface that rises perpendicularly to the axial restriction protrusion 119, and protrudes (extends) longer radially outward than the axial restriction protrusion 119. .
- FIG. 10 is a perspective view of the cap member 102 of the reference configuration example as viewed from the other end side (downstream in the insertion direction).
- FIG. 11 is a perspective view of the cap member 102 of the reference configuration example from one end side (upstream in the insertion direction).
- FIG. 12 is a front view of the cap member 102 of the reference configuration example as viewed from the other end side (downstream side in the insertion direction).
- the cap member 102 has a cylindrical shape, and an opening through which the opening 108 of the container body 101 protrudes is formed at the center thereof.
- a retaining rib 121 that protrudes toward the center protrudes from the inner peripheral portion of the opening of the cap member 102 so as to go around the inner periphery.
- An upstream end surface 122 is formed on the upstream side of the retaining rib 121 in the insertion direction.
- a circumferential-direction regulating abutment 123 that protrudes upstream in the insertion direction is provided on a part of the axial abutment surface 122 of the retaining rib 121.
- a plurality of backlashing projections 124 extending in the insertion direction are provided on the inner peripheral surface of the cylindrical cap member 102 with a predetermined interval in the circumferential direction.
- a drive receiving portion 110 including a driven transmission surface (driven transmission portion) 125 is provided on the outer peripheral portion of the cap member 102 of the reference configuration example.
- FIG. 13 is a side view of the cap member 102 of the reference configuration example.
- the driven transmission surface 125 is a wall surface erected from the outer periphery of the cap member 102 toward the radially outer side.
- a plurality of drive receiving portions 110 including a driven transmission surface 125 are continuously arranged in the circumferential direction. As shown in FIGS. 10 and 13 and the like, the end portion of the drive receiving portion 110 on the downstream side in the insertion direction has a sharp shape.
- FIG. 14 is an enlarged side cross section in the vicinity of the downstream end portion in the insertion direction of the toner container 100 of the reference configuration example.
- a stopper projection 116 is provided on the opening base 120 of the container body 101. Therefore, when the cap member 102 is attached to the container main body 101, as shown in FIG. 14, the retaining ribs 121 of the cap member 102 are caught by the retaining projections 116, so that the cap member 102 cannot be detached. Yes. Further, as shown in FIG. 8, the opening base 120 of the container body 101 is provided with an axial restriction protrusion 119. For this reason, when the cap member 102 is attached to the container main body 101, as shown in FIG. 14, the axial contact surface 122 of the retaining rib 121 of the cap member 102 abuts against the axial restriction protrusion 119. Due to this abutment, the cap member 102 is prevented from being stuck further on the container body 101 side.
- the axial abutting surface 122 of the cap member 102 abuts to restrict the movement of the cap member 102.
- the retaining rib 121 of the cap member 102 is inserted between the retaining projection 116 and the axial direction regulating projection 119, so that the cap member 102 is advanced and retracted in the axial direction. Be regulated.
- the circumferential restriction protrusion 117 is provided so as to extend to the outside of the axial restriction protrusion 119 with respect to the axial direction of the container body 101.
- the container body 101 rotates with the rotation of the cap member 102.
- the cap member 102 can rotate within a predetermined angle range with respect to the container body 101 until the circumferential direction restricting projection 123 of the cap member 102 is caught by the circumferential direction restricting protrusion 117.
- FIG. 15 is a perspective view of the container storage portion 200 of the present embodiment as viewed from the upstream side in the insertion direction.
- the back side (the direction toward the output side drive member 205, the direction of the arrow ⁇ in FIG. 15) where the toner container 100 is inserted toward the back of the copier 500 main body side is the downstream side in the insertion direction, and the opposite side is the upstream side in the insertion direction. It becomes.
- the toner container 100 is mounted on the container mounting unit 201 and is inserted in the insertion direction parallel to the central axis while being guided by the container support unit 207.
- the inner lid 106 is opened.
- An output side drive member 205 that outputs a rotational drive to the toner container 100 from the copier 500 main body side is rotatably provided around the container insertion portion 204, and the output side drive member 205 is a container drive motor 208. It is rotationally driven by.
- the output side drive member 205 and the drive receiving portion 110 of the toner container 100 are engaged, and the rotation drive of the output side drive member 205 is transmitted to the toner container 100, whereby the toner container 100 is Will rotate.
- the container placement unit 201 is provided with a container pressing unit 202 and a container detection unit 203. These are biased upward from below, protrude from the upper surface of the container mounting portion 201 before the toner container 100 is mounted, and are retracted downward by the weight when the toner container 100 is placed on the top. Yes.
- the container pressing unit 202 and the container detection unit 203 are pressed by the cap member 102 of the toner container 100 and retracted downward. Thereafter, when the toner container 100 further enters and reaches the back, the rear end portion (upstream end portion in the insertion direction) of the cap member 102 passes over the container pressing portion 202.
- suppressing part 202 returns to the state protruded upwards by the urging
- the wall surface on the downstream side of the container pressing portion 202 in the insertion direction hits the rear end portion of the cap member 102 and is caught to prevent the toner container 100 from coming off.
- the cap member 102 is positioned above the container detection unit 203, and the container detection unit 203 is retracted downward due to the weight of the cap member 102.
- the container detection unit 203 is retracted downward, it can be detected whether or not the toner container 100 is set in the container storage unit 200. Note that by pushing the container fixing release lever 210 to the downstream side in the insertion direction, the container pressing portion 202 is lowered and the toner container 100 can be pulled out.
- FIG. 16 is a front view of the output side drive member 205 provided in the main body of the copier 500 of this embodiment as viewed from the upstream side in the insertion direction.
- FIG. 17 is a perspective view of the output side drive member 205 as viewed from the upstream side in the insertion direction, and
- FIG. 18 is a side view of the output side drive member 205.
- the output drive member 205 is a disk-shaped member, and gear teeth 211 as shown in a region ⁇ in FIGS. 16 and 17 are provided on the entire peripheral surface.
- a drive transmission gear 206 of the container drive motor 208 is engaged with the gear teeth 211, and a driving force is transmitted along with the rotation of the container drive motor 208, so that the rotation is driven.
- a circular opening is provided at the center of the disk-like output side drive member main body 205 a of the output side drive member 205, and serves as a container insertion port 213.
- the output drive member 205 has two drive claws 212 extending toward the upstream side in the insertion direction with respect to the output drive member main body 205a.
- the output side drive member main body 205a is provided with an incompatible projection group 215 constituted by a combination of a plurality of incompatible projections as an output side incompatible portion radially inward of the drive claw 212.
- the incompatible protrusion group 215 includes an outer peripheral incompatible protrusion group 215a and an inner peripheral incompatible protrusion group 215b arranged concentrically at different distances from the rotation center line of the output side drive member 205.
- the incompatible protrusion group 215 includes a plurality of protrusions protruding upstream in the insertion direction, and each protrusion is inclined so that the protrusion amount increases from the upstream side in the rotation direction of the output side drive member 205 toward the downstream side. Go to the top.
- the downstream side in the rotational direction with respect to the top is formed as a plane parallel to the insertion direction. That is, it is a surface that rises perpendicularly from the upstream surface in the insertion direction of the output side drive member main body 205a.
- the outer peripheral side incompatible protrusion group 215a and the inner peripheral side incompatible protrusion group 215b are each composed of a combination of two protrusions, and a plurality of such combinations are provided in the circumferential direction (this book In the embodiment, four).
- the two drive claws 212 are provided with an interval of 180 [°] therebetween and are opposed to each other.
- a drive transmission surface 214 formed of a wall surface along the insertion direction is provided on the side surface on the downstream side in the rotation direction of the drive claw 212.
- the drive transmission surface 214 is driven by the drive receiving unit 110. By pressing the transmission surface 125, it functions as a drive transmission unit.
- the toner container 100 of the reference configuration example is inserted in a state in which the positions in the circumferential direction of the driven transmission surface 125 of the drive receiving unit 110 and the driving transmission surface 214 of the output side driving member 205 coincide. At this time, if the incompatible shapes of the incompatible hole group 111 and the incompatible protrusion group 215 match, the hole is inserted to the end.
- the incompatible protrusion group 215 is not inserted into the incompatible hole group 111, but abuts on the surface where the hole on the downstream side in the insertion direction of the cap member 102 is not formed, and the toner container 100 Cannot be inserted to the end.
- the positional relationship between the holes constituting the incompatible hole group 111 may be different from the positional relationship between the protrusions constituting the incompatible projection group 215. If the toner container 100 cannot be completely inserted, the end of the toner container 100 in the insertion direction upstream protrudes from the front side (upstream side in the insertion direction) of the copying machine 500 main body. Notice that the toner container 100 is not inserted in the correct combination. Accordingly, it is possible to prevent the toner container 100 from being erroneously set at a position where the toner container 100 storing different types of toner (for example, different colors) in the copying machine 500 should be set.
- different types of toner for example, different colors
- FIG. 1 is an enlarged perspective view of the vicinity of the downstream end portion in the insertion direction of the toner container 100 of the embodiment.
- FIG. 19 is a perspective view of the cap member 102 of the embodiment viewed from the other end side (downstream side in the insertion direction). It is.
- FIG. 20 is a front view of the cap member 102 of the embodiment as viewed from the other end side (downstream in the insertion direction), and
- FIG. 21 is a side view of the cap member 102 of the embodiment.
- the toner container 100 of the embodiment is different from the toner container 100 of the reference configuration example only in the shape of the outer peripheral surface of the cap member 102.
- the shape of the container main body 101 and the configuration for fixing the container main body 101 and the cap member 102 are the reference. Common to the configuration example. Therefore, description of common points will be omitted as appropriate, and differences will be described.
- the cap member 102 of the embodiment has a cap front side portion 102a located on the downstream side in the insertion direction and an outer diameter located on the upstream side in the insertion direction and larger than the cap front side portion 102a. And a large cap rear side portion 102b. Further, an incompatible hole group 111 similar to that of the above-described reference configuration example is formed on the distal end surface that is the surface of the downstream end portion in the insertion direction of the cap front side portion 102a.
- the outer peripheral surfaces of the cap front side portion 102a and the cap rear side portion 102b are curved surfaces having no protrusions.
- the outer diameter of the cap front side portion 102a is smaller than the inner diameter of the drive claw 212, which is the distance between the two drive claws 212 of the output side drive member 205.
- the toner container 100 of the reference configuration example described above is provided with a drive receiving portion 110 that protrudes from the outer periphery of the cap member 102.
- a drive receiving portion 110 that protrudes from the outer periphery of the cap member 102.
- the outer peripheral surface of the cap member 102 is not provided with a shape that engages with the engaging portion on the main body side of the copying machine 500, and the outer peripheral surface of the cap member 102 is a curved surface having no protrusion shape. It has become. For this reason, as compared with the configuration having the protrusion shape, the contact area when the toner container 100 is dropped can be increased, and the force applied at the time of dropping can be dispersed without concentrating on one point. As described above, in the toner container 100 of the embodiment, there is no convex portion where the load concentrates on one point on the outer peripheral surface of the cylindrical toner container 100, and it is possible to prevent damage to the parts at the time of dropping.
- the container side engaging portion to which driving is input is the incompatible hole group 111 including a plurality of incompatible holes, and the container side engaging portion is also convex on the front end surface. Not a part. For this reason, even if the toner container 100 falls from the front end surface side, the load is not concentrated on the container side engaging portion not provided with the convex portion, and the container side engaging portion having a function of receiving rotational driving is damaged. This can be suppressed.
- the container side engaging portion having a function of receiving rotational driving is not a protruding portion on the surface of the toner container 100, the container side engaging portion collides with a member on the apparatus main body side when the toner container 100 is attached or detached. It becomes difficult to do. Thereby, when the toner container 100 is attached or detached, it is possible to suppress damage to a portion having a function of receiving rotational driving.
- FIG. 22 is a side view of the cap member 102 and the output side drive member 205 in a state where the toner container 100 of the embodiment is inserted into the copying machine 500 main body.
- the output side drive member 205 is shown as a cross-sectional view in a plane passing through the center of rotation.
- the output side drive member 205 on the main body side of the copier 500 serves as a main body side engaging portion for transmitting rotational driving to the drive receiving portion 110 of the toner container 100 of the reference configuration example.
- the drive claw 212 is provided.
- the output side drive member 205 includes an incompatible protrusion group 215 as an incompatible part for preventing an erroneous setting of the toner container 100.
- the toner container 100 of the embodiment When the toner container 100 of the embodiment is inserted into the copying machine 500 main body, if the incompatible shapes of the incompatible hole group 111 of the cap member 102 and the incompatible protrusion group 215 of the output side driving member 205 match. It can be inserted to the end as shown in FIG. Since the outer diameter of the cap front side portion 102a is shorter than the distance between the two drive claws 212 of the output side drive member 205, the cap member 102 and the output side drive member 205 are engaged as shown in FIG. Then, the cap front side portion 102 a is positioned on the inner diameter side with respect to the drive claw 212.
- the cap member 102 does not engage with the driving claw 212 of the output side driving member 205, the incompatible protrusion group 215 that is an incompatible engaging portion on the copying machine 500 main body side, and the cap An incompatible hole group 111 that is an incompatible engaging portion on the member 102 side is engaged.
- the output side drive member 205 is rotationally driven, the rotational drive is transmitted to the cap member 102 via the engaging portion between the incompatible protrusion group 215 and the incompatible hole group 111, and the toner container 100 is rotationally driven.
- FIG. 23 shows the cap member 102 in which an incompatible protrusion 2151 that is one of the protrusions forming the incompatible protrusion group 215 and an incompatible hole 1111 that is one of the holes forming the incompatible hole group 111 are formed. It is an expanded sectional view with a tip face.
- An arrow ⁇ in FIG. 23 indicates the rotation direction of the toner container 100, and the vertical direction in FIG. 23 is a direction parallel to the rotation center line (center axis).
- the hole downstream side surface 111 f facing the upstream side in the rotation direction is provided in parallel to the rotation center line.
- the rotational driving force input from the incompatible protrusion 2151 acts in a direction orthogonal to the hole downstream side surface 111f, so that the rotational driving force can be more reliably performed. Can be communicated.
- the hole upstream side surface 111 r facing the downstream side in the rotation direction is inclined with respect to the rotation center line, and the hole downstream side surface 111 f It has a shape in which the opening width as a distance is widened. Thereby, the opening width in the direction along the rotation direction of the incompatible hole 1111 becomes wider toward the output side drive member 205 side. With such a shape, even if the position of the incompatible protrusion 2151 with respect to the incompatible hole 1111 when the toner container 100 is inserted is slightly shifted to the upstream side in the rotation direction, the hole downstream side surface 111f becomes the incompatible protrusion 2151. Contact.
- the output side drive member 205 provided in the copying machine 500 of the present embodiment is provided with a drive claw 212 along the outer periphery of the toner container 100.
- the drive claw 212 transmits rotational driving to a drive receiving unit 110 as a drive input unit provided on the outer peripheral surface of the cap member 102 of the toner container 100 of the reference configuration example.
- the toner container 100 according to the embodiment does not include a drive input unit on the outer peripheral surface of the cap member 102.
- the cap member 102 can avoid the drive claw 212, and the copying machine 500 including the drive claw 212 can The toner container 100 can be applied.
- the cap member 102 includes a cap rear side portion 102b having an outer diameter larger than that of the cap front side portion 102a.
- the outer diameter of the cap rear side portion 102b is such that when the toner container 100 is attached to the container storage portion 200, the wall surface on the downstream side in the insertion direction of the container pressing portion 202 is the end portion on the upstream side in the insertion direction of the cap rear side portion 102b. It is set to the size that hits.
- the cap member 102 can be engaged with the container pressing portion 202 when the toner container 100 is mounted in the container storage portion 200. By this engagement, it is possible to prevent the toner container 100 attached to the copier 500 from falling off and to hold the toner container 100 in the container storage unit 200.
- the powder container such as the toner container 100 used in the image forming apparatus such as the copying machine 500 is made common among the models and the colors in order to reduce the cost.
- a container identification shape for non-model compatibility or color non-compatibility in which a part of the shape of the powder container is made different depending on the type of powder such as toner to be stored.
- the toner container 100 according to the embodiment can obtain an incompatible function by the difference in the circumferential position of the inner peripheral incompatible hole group 111b with respect to the outer peripheral incompatible hole group 111a.
- FIG. 24 is a perspective view of the cap member 102 of the toner container 100 according to the modification as viewed from the other end side (downstream in the insertion direction).
- FIG. 25 is a front view of the modified cap member 102 as viewed from the other end side (downstream in the insertion direction), and
- FIG. 26 is a side view of the modified cap member 102.
- FIG. 27 is a side view of the cap member 102 and the output side drive member 205 in a state in which the toner container 100 of the modified example is inserted into the copying machine 500 main body. Further, FIGS.
- FIG. 28-1 and 28-2 are explanatory views for comparing the shapes of the cap member 102 between the embodiment and the modification, and FIG. 28-1 is a side view of the cap member 102 of the embodiment.
- FIG. 28-2 is a side view of a cap member 102 according to a modification.
- the toner container 100 of the modified example is different from the toner container 100 of the example only in the shape of the outer peripheral surface of the cap member 102, and other configurations are the same as those of the example. Therefore, description of common points will be omitted as appropriate, and differences will be described.
- a chain line ⁇ in FIGS. 28A and 28B is an imaginary straight line that connects the front end and the rear end of the outer periphery of the cap member 102.
- the downstream portion the portion indicated by the region ⁇ in the drawing
- the cap member 102 according to the modified example has a shape having no portion protruding outward from the one-dot chain line ⁇ .
- the shape of the cap member 102 according to the modified example there is no protrusion on the outer peripheral surface of the cap member 102, so that even if the toner container 100 is dropped, there is no portion where the force is concentrated, and parts are damaged when dropped. Further, it can be prevented.
- the container main body 101 that stores the toner and the cap member 102 that includes the container-side engagement portion that performs input of rotation driving and identification of incompatibility are separate members. This is a configuration for fixing them.
- the powder storage container to which the present invention is applied may be configured such that a container-side engagement portion that performs rotational drive input and incompatibility identification is provided on a member that forms a powder storage portion that stores powder.
- the toner container 100 according to the embodiment and the modified example has a configuration in which the entire toner container 100 is rotationally driven by the input of rotational driving. However, the toner container 100 may be rotationally driven only by the powder storage unit in which the toner is stored. Good.
- the member that forms the powder storage portion of the toner container 100 may be configured such that the rotating member disposed therein rotates to convey the toner in the direction along the rotation center line.
- a powder storage unit such as a container main body 101 for storing powder such as toner, and a drive output unit such as an output side drive member 205 of the image forming apparatus in a state of being set in the image forming apparatus such as the copier 500.
- the powder storage container such as the toner container 100 in which the powder storage unit or the rotation member disposed inside the powder storage unit rotates by inputting the rotation drive, the rotation of the rotation drive with respect to the image forming apparatus is rotated.
- the container-side engagement portion When inserting and setting in a direction parallel to the center line, the container-side engagement portion is provided with a container-side engagement portion such as an incompatible hole group 111 on an end surface such as a tip surface facing the downstream side in the insertion direction. It has a hole shape that engages with the main body side protrusions such as the incompatible protrusion group 215 provided so as to protrude toward the upstream side in the insertion direction of the drive output portion, and the container side engagement portion and the main body side protrusion Rotation drive is input by rotating the drive output part with the engaged It is.
- a container-side engagement portion such as an incompatible hole group 111 on an end surface such as a tip surface facing the downstream side in the insertion direction. It has a hole shape that engages with the main body side protrusions such as the incompatible protrusion group 215 provided so as to protrude toward the upstream side in the insertion direction of the drive output portion, and the container side engagement portion and the main body side protrusion Rot
- the container side engaging portion having a hole shape is provided on the end face as described in the above embodiment, the main body side protruding portion and the container side engaging portion are formed by the insertion operation of the powder container. Can be engaged with each other, and rotational drive input becomes possible. And since the container side engaging part which consists of holes is not the part which protruded in the surface of the powder storage container, when a powder storage container falls, it is hard to collide with a floor etc. and it is hard to produce a failure
- the hole shape is not limited to the through hole that penetrates the member that forms the end face, and may be a recess having a depth that can be engaged with the main body side protrusion.
- the container side engaging portions such as the incompatible hole group 111 are positioned at different distances from the rotation center line on the end surface such as the tip surface as a container identification shape having a color incompatible or model incompatible function.
- a container first engaging portion such as an outer peripheral side incompatible hole group 111a and a container second engaging portion such as an inner peripheral side incompatible hole group 111b arranged in the container, and depending on the type of powder storage container to be identified It sets so that the position of the circumferential direction of the container 2nd engaging part with respect to a 1st engaging part may differ.
- an incompatible function can be obtained by the difference in the position of the container 2 engagement part with respect to the container 1 engagement part in the peripheral direction.
- the portion forming the container identification shape is a container-side engagement portion having a hole shape, the portion forming the container identification shape is prevented from being damaged when the powder container is dropped or the like. be able to.
- the hole shape of the non-compatible hole 1111 or the like of the container side engaging portion such as the non-compatible hole group 111 is such that the opening width in the direction along the rotation direction becomes wider toward the downstream side in the insertion direction. It is. According to this, as explained about the above-mentioned embodiment, it becomes easy to insert main part side projection parts, such as incompatible projection 2151, in the hole shape of a container side engagement part.
- the cap member has a cap member such as a cap member 102 that covers the outer periphery of the distal end side in the insertion direction of the powder container such as the container main body 101, and the cap member has a distal end portion at the outer peripheral portion thereof.
- This is a shape having no portion projecting outward from the virtual straight line such as a one-dot chain line ⁇ connecting the rear end portion and the rear end portion. According to this, as described in the above embodiment, there is no projecting portion on the outer peripheral surface of the cap member, so even if the powder container falls, there is no portion where the force is concentrated, and the component at the time of dropping Damage can be further prevented.
- toner is stored as powder. According to this, as described in the above embodiment, when a powder container such as the toner container 100 that stores toner falls or the like, the container side engaging portion that is a part having a function of receiving rotational driving is provided. It is possible to suppress damage.
- An image forming unit such as a printer unit 600 that forms an image on an image carrier such as the photoreceptor 1 using powder for image formation such as toner, and a toner replenishing device 70 that conveys the powder to the image forming unit.
- an image forming apparatus such as a copying machine 500 including a powder transport unit such as a powder storage unit detachably held by the powder transport unit, any one of aspects A to F is used as the powder storage container.
- a powder container such as the toner container 100 according to the embodiment is used. According to this, as described in the above embodiment, it is possible to suppress damage to the portion having the function of receiving rotational driving in the powder container when the powder container is attached or detached.
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Abstract
Description
このような問題は、回転駆動が入力されることによりトナー容器が回転するものに限らず、トナー容器の内側に配置された回転部材が回転する構成であっても同様の問題が生じ得る。
図2は、本発明を適用可能な画像形成装置としての複写機500の概略構成を説明する概略構成図である。複写機500はプリンタ部600、これを載せる給紙テーブル700、プリンタ部600の上に固定されたスキャナ300を備えている。また、このスキャナ300の上に固定された原稿自動搬送装置400も備えている。
この二次転写ニップ部のシート搬送方向下流側には、支持ローラ対16に架張されたシート搬送ベルト15が設けられており、トナー像が二次転写されたシートPを定着装置18まで搬送する。定着装置18は、加熱ローラと加圧ローラとから構成された定着ローラ対8を備えており、その定着ニップ部で熱及び圧力を加えて、未定着のトナー像をシートP上に定着する。
本実施形態に係る複写機500でフルカラー画像を形成する場合、まず、原稿自動搬送装置400の原稿台401に原稿をセットする。または、原稿自動搬送装置400を開いてスキャナ300のコンタクトガラス301上に原稿をセットし、原稿自動搬送装置400を閉じて押さえる。
本実施形態において、トナー容器100に収納され、トナー補給装置70によって現像装置9に補給される補給剤は、トナーとキャリアとが混合されたものであるが、トナーのみを補給する構成であってもよい。
図3に示すように、トナー補給装置70は、トナー受部60、ダイヤフラムポンプ30及びサブホッパ20を備える。
トナー容器100は、中空の円柱形状の内側に突出するように螺旋状の搬送溝113が形成されており、トナー容器100が回転駆動されることで、収納した補給剤を、排出口114側へ搬送する。そして、排出口114まで搬送された補給剤は、トナー受部60の収納器61に形成された導入口64から収納器61内に供給される。
現像装置9にはトナー濃度センサが取り付けられており、現像装置9内のトナーが消費されると、このトナー濃度センサによってトナー濃度の低下が検知される。そして、サブホッパ20から消費された分のトナーを含んだ補給剤が補給され、現像装置9内のトナー濃度が一定に保たれる。
以下、トナー容器100について説明するが、以下の説明においてトナー容器100が収納するトナーはトナーのみに限らず、上述した補給剤のようにキャリアを含むものであってもよい。
次に、本実施形態の複写機500に着脱可能なトナー容器100の参考構成例について説明する。
図4は、参考構成例のトナー容器100を挿入方向先端側(挿入方向下流側)から見た斜視説明図である。図4中の矢印α方向がトナー容器100の挿入方向である。
以下、トナー容器100におけるキャップ部材102側(他端部側)を挿入方向下流側とし、キャップ部材102側とは長手方向反対側の底部112側(一端側)を挿入方向上流側とする。トナー容器100が回転することによって容器本体101内のトナーは挿入方向上流側から、挿入方向下流側に搬送される。
トナーの搬送方向上流側は挿入方向上流側、搬送方向下流側は挿入方向下流側である。円柱形状の容器本体101の中心軸に対して直交する方向を径方向と呼ぶ。径方向における中心軸に向かう方向を中心方向、容器本体101の外周に向かう方向を外周方向と呼ぶ。
図6は、図4の状態から外蓋103及び内蓋106を取り外したトナー容器100の挿入方向下流側端部近傍の拡大斜視図である。
図6に示すように、開口部108は円筒状であり、開口部108の内側(内壁面)には排出部材107が嵌合されている。また、使用前は、排出口114を覆う内蓋106が開口部108に嵌合される。
図7に示すように、容器本体101の開口部108近傍には、外周が径方向内部に向けてせり出す容器汲み上げ部115が設けられている。容器汲み上げ部115は、回転に伴って容器汲み上げ部115まで搬送されてきたトナーを下方から上方に持ち上げると共に、排出部材107に持ち上げたトナーを受け渡し、排出口114までトナーを搬送する。
容器本体101の開口部108と、容器汲み上げ部115との間には、円筒状の開口部基部120が設けられている。開口部基部120の外周面には、抜け止め突起116、円周決め突起118、軸方向規制突起119及び周方向規制突起117が設けられている。
図10 は、参考構成例のキャップ部材102を他端側(挿入方向下流側)から見た斜視図であり、図11は、参考構成例のキャップ部材102を一端側(挿入方向上流側)から見た斜視図である。また、図12は、参考構成例のキャップ部材102を他端側(挿入方向下流側)から見た正面図である。
また、参考構成例のキャップ部材102の外周部には、被駆動伝達面(被駆動伝達部)125を備える駆動受部110が設けられている。
被駆動伝達面125はキャップ部材102の外周から径方向外側に向かって立設された壁面である。
キャップ部材102の外周には、被駆動伝達面125を備える駆動受部110が複数連続的に周方向に並んで設けられている。
図10及び図13等に示すように、駆動受部110における挿入方向下流側の端部は尖った形状となっている。
図14は、参考構成例のトナー容器100の挿入方向下流側端部近傍の拡大側方断面である。
また、図8に示すように、容器本体101の開口部基部120には、軸方向規制突起119が設けられている。このため、キャップ部材102を容器本体101に取り付けたときには、図14に示すように、この軸方向規制突起119にキャップ部材102の抜け止めリブ121の軸方向突き当たり面122が突き当たる。この突き当たりにより、キャップ部材102が容器本体101側にそれ以上はまりこまないようになっている。
図14に示すように、抜け止め突起116と軸方向規制突起119との間に、キャップ部材102の抜け止めリブ121がはまりこんでいる状態とされることで、キャップ部材102の軸方向に対する進退が規制される。
このような軸方向及び周方向の規制により、キャップ部材102を容器本体101に対して周方向に所定の角度範囲で回転可能な状態で固定することができる。
図15は、本実施形態の容器収納部200を挿入方向上流側から見た斜視図である。
複写機500本体側の奥に向かってトナー容器100が挿入される奥側(出力側駆動部材205に向かう方向、図15中の矢印α方向)が挿入方向下流側で、反対側が挿入方向上流側となる。
参考構成例のトナー容器100は、出力側駆動部材205とトナー容器100の駆動受部110とが係合し、出力側駆動部材205の回転駆動がトナー容器100に伝達することによってトナー容器100が回転することになる。
容器載置部201の挿入方向上流側からトナー容器100が進入すると、トナー容器100のキャップ部材102によって容器押さえ部202と容器検知部203とが押圧され、下方に引っ込む。その後、さらに、トナー容器100が進入し、奥まで到達すると、キャップ部材102の後端部(挿入方向上流側端部)が容器押さえ部202の上方を通過した状態となる。これにより、容器押さえ部202を下方に押さえるものが無くなるため、付勢力によって容器押さえ部202は上方に突出した状態に戻る。この状態では、容器押さえ部202の挿入方向下流側の壁面がキャップ部材102の後端部に突き当たり、引っ掛かることで、トナー容器100の抜け防止になっている。
なお、容器固定解除レバー210を挿入方向下流側に押すことによって、容器押さえ部202が下方に下がり、トナー容器100を引き抜くことが可能となる。
図16は、本実施形態の複写機500本体が備える出力側駆動部材205を挿入方向上流側から見た正面図である。また、図17は、出力側駆動部材205を挿入方向上流側から見た斜視図であり、図18は、出力側駆動部材205の側面図である。
駆動爪212の回転方向下流側の側面は挿入方向に沿った壁面からなる駆動伝達面214が設けられており、参考構成例のトナー容器100では、駆動伝達面214が駆動受部110の被駆動伝達面125を押圧することで、駆動伝達部として機能する。
参考構成例のトナー容器100は、駆動受部110における被駆動伝達面125と、出力側駆動部材205の駆動伝達面214との周方向の位置が合致する状態で挿入される。このとき、非互換穴群111と非互換突起群215との非互換の形状が合致していれば最後まで挿入される。非互換の形状が合致していなければ、非互換突起群215が非互換穴群111に挿入されずに、キャップ部材102の挿入方向下流側の穴が形成されていない面に突き当たり、トナー容器100を最後まで挿入しきれない。
トナー容器100を最後まで挿入しきれない状態だと、複写機500本体の手前側(挿入方向上流側)からトナー容器100の挿入方向上流側の端部が突出している状態となり、操作者は、正しい組み合わせでトナー容器100を挿入していないことに気づく。これにより、複写機500本体における異なる種類のトナー(例えば色が違う)を収納するトナー容器100がセットされるべき位置に、トナー容器100が誤セットされることを防止できる。
次に、本発明を適用したトナー容器100の実施例について説明する。
図1は、実施例のトナー容器100の挿入方向下流側端部近傍の拡大斜視図であり、図19は、実施例のキャップ部材102を他端側(挿入方向下流側)から見た斜視図である。また、図20は、実施例のキャップ部材102を他端側(挿入方向下流側)から見た正面図であり、図21は、実施例のキャップ部材102の側面図である。
また、実施例のトナー容器100は、駆動が入力される容器側係合部が、複数の非互換用の穴からなる非互換穴群111であり、容器側係合部は先端面においても凸部となっていない。このため、トナー容器100が先端面側から落下等したとしても、凸部を備えない容器側係合部には荷重が集中せず、回転駆動を受ける機能を有する容器側係合部が破損することを抑制できる。
図16~図18等に示すように、複写機500本体側の出力側駆動部材205は、参考構成例のトナー容器100の駆動受部110に回転駆動を伝達するための本体側係合部としての駆動爪212を備える。さらに、出力側駆動部材205は、トナー容器100の誤セットを防止するための非互換部としての非互換突起群215を備える。
キャップ前側部102aの外径は、出力側駆動部材205の二つの駆動爪212同士の間の距離よりも短いため、図22に示すように、キャップ部材102と出力側駆動部材205とが係合すると、キャップ前側部102aは駆動爪212よりも内径側に位置する。
図23に示すように、非互換穴1111を形成する面のうち、回転方向上流側に向いている穴下流側面111fが回転中心線に対して平行に設けられている。
穴下流側面111fが回転中心線に対して平行であることにより、非互換突起2151から入力される回転駆動力が穴下流側面111fに対して直交する方向に作用するため、より確実に回転駆動力の伝達を行うことができる。
この駆動爪212は、参考構成例のトナー容器100のキャップ部材102の外周面に設けられた駆動入力部としての駆動受部110に回転駆動を伝達するものである。これに対して、実施例のトナー容器100は、キャップ部材102の外周面に駆動入力部を設けていない。しかし、実施例のキャップ前側部102aの外径を駆動爪212の内径よりも小さくすることで、キャップ部材102が駆動爪212を避けることができ、駆動爪212を備える複写機500に実施例のトナー容器100を適用することが可能となる。
実施例のトナー容器100は、内周側非互換穴群111bの外周側非互換穴群111aに対する周方向の位置の違いによって非互換の機能を得ることができる。このため、収納するトナーの色の違いや装着する画像形成装置の機種の違いによって、非互換穴群111の形状を異ならせることで、誤セットを防止しつつ、非互換穴群111の形状以外の部分の共通化を図ることができる。これにより、粉体収納容器のコストダウンを図ることができる。
次に、本発明を適用したトナー容器100の変形例について説明する。
図24は、変形例のトナー容器100のキャップ部材102を他端側(挿入方向下流側)から見た斜視図である。また、図25は、変形例のキャップ部材102を他端側(挿入方向下流側)から見た正面図であり、図26は、変形例のキャップ部材102の側面図である。図27は、複写機500本体に変形例のトナー容器100を挿入した状態のキャップ部材102と出力側駆動部材205との側面図である。
さらに、図28-1、図28-2は、実施例と変形例とのキャップ部材102の形状を比較する説明であって、図28-1は実施例のキャップ部材102の側面図であり、図28-2は変形例のキャップ部材102の側面図である。
実施例のキャップ部材102は、図28-1に示すように、キャップ後側部102bの挿入方向下流側の部分(図中の領域ηで示す部分)が一点鎖線εよりも外側に張り出している。一方、変形例のキャップ部材102は、図28-2に示すように、一点鎖線εよりも外側に張り出す部分が無い形状となっている。
変形例のキャップ部材102の形状とすることで、キャップ部材102の外周面に突出部が存在しなくなるため、トナー容器100が落下したとしても力が集中する部分がなくなり、落下時の部品破損をさらに防止することができる。
また、実施例及び変形例のトナー容器100は、回転駆動が入力されることでトナー容器100全体が回転駆動する構成であるが、トナーが収納された粉体収納部のみが回転駆動する構成でもよい。さらに、トナー容器100の粉体収納部を形成する部材は回転せず、その内部に配置された回転部材が回転してトナーを回転中心線に沿う方向に搬送する構成であってもよい。
(態様A)
トナー等の粉体を収納する容器本体101等の粉体収納部を有し、複写機500等の画像形成装置にセットされた状態で画像形成装置の出力側駆動部材205等の駆動出力部の回転駆動が入力されることで、粉体収納部または粉体収納部の内側に配置された回転部材が回転するトナー容器100等の粉体収納容器において、画像形成装置に対して回転駆動の回転中心線に平行な方向に挿入してセットする際に、挿入方向の下流側を向く先端面等の端面に非互換穴群111等の容器側係合部を備え、容器側係合部は、駆動出力部の挿入方向の上流側に向けて突出するように設けられた非互換突起群215等の本体側突起部と係合する穴形状からなり、容器側係合部と本体側突起部とが係合した状態で駆動出力部が回転することで回転駆動が入力される。
これによれば、上記実施形態について説明したように、穴形状からなる容器側係合部を上記端面に設けているため、粉体収納容器の挿入動作によって、本体側突起部と容器側係合部とを係合させることができ、回転駆動の入力が可能になる。そして、穴形状からなる容器側係合部は、粉体収納容器の表面において突出した部分ではないため、粉体収納容器が落下等したときに、床等に衝突し難く、破損が生じ難い。このように、態様Aでは、粉体収納容器が落下等したときに、回転駆動を受ける機能を有する部分である容器側係合部が破損することを抑制することができる。
なお、上記穴形状としては、端面を形成する部材を貫通する貫通穴に限らず、本体側突起部と係合し得る深さを持った窪みであってもよい。
態様Aにおいて、非互換穴群111等の容器側係合部は、色非互換あるいは機種非互換の機能を有する容器識別形状として、先端面等の端面における回転中心線からの距離が互いに異なる位置に配置された外周側非互換穴群111a等の容器第一係合部と内周側非互換穴群111b等の容器第二係合部とを備え、識別する粉体収納容器の種類によって容器第一係合部に対する容器第二係合部の周方向の位置が異なるように設定する。
これによれば、上記実施形態について説明したように、容器第二係合部の容器第一係合部に対する周方向の位置の違いによって非互換の機能を得ることができる。また、容器識別形状を形成する部分が、穴形状からなる容器側係合部であることにより、粉体収納容器が落下等したときに、容器識別形状を形成する部分が破損することを抑制することができる。
態様AまたはBの何れの態様において、非互換穴群111等の容器側係合部の非互換穴1111等の穴形状を形成する面のうち、回転駆動が入力されたときの回転方向上流側に向いている穴下流側面111f等の面が、回転中心線に対して平行に設けられている。
これによれば、上記実施形態について説明したように、非互換突起2151等の本体側突起部から入力される回転駆動力をより確実に伝達することができる。
態様A乃至Cの何れの態様において、非互換穴群111等の容器側係合部の非互換穴1111等の穴形状は、回転方向に沿う方向の開口幅が挿入方向下流側ほど広くなる形状である。
これによれば、上記実施形態について説明したように、非互換突起2151等の本体側突起部が容器側係合部の穴形状に挿入し易くなる。
態様A乃至Dの何れの態様において、容器本体101等の粉体収納容器の挿入方向の先端側の外周を覆うキャップ部材102等のキャップ部材を有し、キャップ部材は、その外周部における先端部と後端部とを結ぶ一点鎖線ε等の仮想直線よりも外側に張り出す部分が無い形状である。
これによれば、上記実施形態について説明したように、キャップ部材の外周面に突出部が存在しなくなるため、粉体収納容器が落下等したとしても力が集中する部分がなくなり、落下時の部品破損をさらに防止することができる。
態様A乃至Eの何れの態様において、粉体としてトナーが収納されている。
これによれば、上記実施形態について説明したように、トナーを収容するトナー容器100等の粉体収納容器が落下等したときに、回転駆動を受ける機能を有する部分である容器側係合部が破損することを抑制することができる。
トナー等の画像形成用の粉体を用いて感光体1等の像担持体上に画像形成をするプリンタ部600等の画像形成部と、画像形成部に該粉体を搬送するトナー補給装置70等の粉体搬送部と、粉体搬送部に着脱自在に保持される粉体収納容器と、を備える複写機500等の画像形成装置において、粉体収納容器として、態様A乃至Fのいずれかの態様に係るトナー容器100等の粉体収納容器を用いる。
これによれば、上記実施形態について説明したように、粉体収納容器の着脱時に、粉体収納容器における回転駆動を受ける機能を有する部分が損傷することを抑制することができる。
1 感光体
2Y イエロー用帯電器
2 帯電器
3 除電ランプ
4 感光体クリーニング装置
5 中間転写ベルト
6 一次転写ローラ
6Y イエロー用一次転写ローラ
7 二次転写ローラ
8 定着ローラ対
9 現像装置
9Y イエロー用現像装置
11 二次転写対向ローラ
12 駆動ローラ
13 クリーニング対向ローラ
14 テンションローラ
15 シート搬送ベルト
16 支持ローラ対
17 光書込装置
18 定着装置
19 ベルトクリーニング装置
20 サブホッパ
22 搬送スクリュ
23 トナー排出開口部
30 ダイヤフラムポンプ
53 チューブ
54 トナーダクト
60 トナー受部
61 収納器
64 導入口
70 トナー補給装置
92 現像ローラ
93 攪拌搬送スクリュ
100 トナー容器
101 容器本体
102 キャップ部材
102a キャップ前側部
102b キャップ後側部
103 外蓋
106 内蓋
107 排出部材
108 開口部
109 外蓋止め部
110 駆動受部
111 非互換穴群
111b 内周側非互換穴群
111a 外周側非互換穴群
111f 穴下流側面
111r 穴上流側面
112 底部
113 搬送溝
114 排出口
115 容器汲み上げ部
116 抜け止め突起
117 周方向規制突起
118 円周決め突起
119 軸方向規制突起
120 開口部基部
121 抜け止めリブ
122 軸方向突き当たり面
123 周方向規制突き当て突起
124 ガタ詰め突起
125 被駆動伝達面
200 容器収納部
201 容器載置部
202 容器押さえ部
203 容器検知部
204 容器挿入部
205 出力側駆動部材
205a 出力側駆動部材本体
206 駆動伝達ギヤ
207 容器支持部
208 容器駆動モータ
210 容器固定解除レバー
211 ギヤ歯
212 駆動爪
213 容器挿入口
214 駆動伝達面
215 非互換突起群
215b 内周側非互換突起群
215a 外周側非互換突起群
300 スキャナ
301 コンタクトガラス
302 第一走行体
303 第二走行体
304 結像レンズ
305 読取センサ
400 原稿自動搬送装置
401 原稿台
500 複写機
600 プリンタ部
601 プリンタ部内給紙路
602 レジストローラ対
603 手差し給紙路
604 手差し給紙ローラ
605 手差しトレイ
606 排紙ローラ対
607 排紙トレイ
608 手差し分離ローラ
700 給紙テーブル
701 給紙カセット
702 給紙ローラ
703 分離ローラ
704 給紙路
705 搬送ローラ対
1111 非互換穴
2151 非互換突起
Ly イエロー用光ビーム
P シート
Claims (7)
- 粉体を収納する粉体収納部を有し、
画像形成装置にセットされた状態で該画像形成装置の駆動出力部の回転駆動が入力されることで、該粉体収納部または該粉体収納部の内側に配置された回転部材が回転する粉体収納容器において、
画像形成装置に対して上記回転駆動の回転中心線に平行な方向に挿入してセットする際に、挿入方向の下流側を向く端面に容器側係合部を備え、
該容器側係合部は、上記駆動出力部の挿入方向の上流側に向けて突出するように設けられた本体側突起部と係合する穴形状からなり、
該容器側係合部と該本体側突起部とが係合した状態で該駆動出力部が回転することで該回転駆動が入力されることを特徴とする粉体収納容器。 - 請求項1に記載の粉体収納容器において、
上記容器側係合部は、色非互換あるいは機種非互換の機能を有する容器識別形状として、上記端面における上記回転中心線からの距離が互いに異なる位置に配置された容器第一係合部と容器第二係合部とを備え、
識別する上記粉体収納容器の種類によって該容器第一係合部に対する該容器第二係合部の周方向の位置が異なるように設定することを特徴とする粉体収納容器。 - 請求項1また2の何れかに記載の粉体収納容器において、
上記容器側係合部の穴形状を形成する面のうち、回転駆動が入力されたときの回転方向上流側に向いている面が、上記回転中心線に対して平行に設けられていることを特徴とする粉体収納容器。 - 請求項1乃至3の何れか一項に記載の粉体収納容器において、
上記容器側係合部の穴形状は、回転方向に沿う方向の開口幅が挿入方向下流側ほど広くなる形状であることを特徴とする粉体収納容器。 - 請求項1乃至4の何れか一項に記載の粉体収納容器において、
上記粉体収納容器の上記挿入方向の先端側の外周を覆うキャップ部材を有し、
該キャップ部材は、その外周部における先端部と後端部とを結ぶ仮想直線よりも外側に張り出す部分が無い形状であることを特徴とする粉体収納容器。 - 請求項1乃至5の何れか一項に記載の粉体収納容器において、
上記粉体としてトナーが収納されていることを特徴とする粉体収納容器。 - 画像形成用の粉体を用いて像担持体上に画像形成をする画像形成部と、
該画像形成部に該粉体を搬送する粉体搬送部と、
該粉体搬送部に着脱自在に保持される粉体収納容器と、を備える画像形成装置において、
該粉体収納容器として、請求項1乃至6のいずれか一項に記載の粉体収納容器を用いることを特徴とする画像形成装置。
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Application Number | Priority Date | Filing Date | Title |
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CN201680005688.XA CN107111266B (zh) | 2015-01-14 | 2016-01-06 | 粉末容器和成像装置 |
EP16737274.7A EP3246761B1 (en) | 2015-01-14 | 2016-01-06 | Powder storage container and image-forming device |
US15/543,102 US10133209B2 (en) | 2015-01-14 | 2016-01-06 | Powder container and image forming device |
JP2016569326A JP6390717B2 (ja) | 2015-01-14 | 2016-01-06 | 粉体収納容器及び画像形成装置 |
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JPWO2016114203A1 (ja) | 2017-08-03 |
JP6390717B2 (ja) | 2018-09-19 |
US20180004121A1 (en) | 2018-01-04 |
EP3246761A4 (en) | 2018-01-17 |
CN107111266A (zh) | 2017-08-29 |
CN107111266B (zh) | 2020-08-18 |
US10133209B2 (en) | 2018-11-20 |
EP3246761A1 (en) | 2017-11-22 |
EP3246761B1 (en) | 2021-06-09 |
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