Patent Application
20230384712
The present disclosure relates to a developer container and an image forming apparatus.
Japanese Unexamined Patent Application Publication No. 2011-232399 (hereinafter referred to as Patent Document 1, see to and
Patent Document 1 describes a toner cartridge including a toner containing chamber in an upper region and a toner discharge chamber in a lower region. The toner cartridge according to Patent Document 1 also includes a toner delivery chamber at a lower end of the toner containing chamber in a central region of the toner cartridge in an up-down direction, and a stirring-and-transporting member delivers toner from the toner delivery chamber to a developing unit. The stirring-and-transporting member is provided with a gear exposed to the outside at an end of the stirring-and-transporting member in an axial direction, and the gear meshes with an upper end portion of a gear of an apparatus body when the toner cartridge is attached to the apparatus body. Thus, in the structure according to Patent Document 1, a driving force from the apparatus body is transmitted through the gear disposed in the central region of the toner cartridge in the up-down direction.
Aspects of non-limiting embodiments of the present disclosure relate to a developer container removably attachable to an image forming apparatus. Assuming that a driving force is transmitted to the developer container, rattling caused in response to the driving force transmitted to the developer container is reduced compared to when the developer container is positioned at plural locations such that spatial allowances between positioning and positioned portions are equal to each other or when the spatial allowance between the positioning and positioned portions at a location distant from a driving position is relatively small.
Aspects of certain non-limiting embodiments of the present disclosure address the above advantages and/or other advantages not described above. However, aspects of the non-limiting embodiments are not required to address the advantages described above, and aspects of the non-limiting embodiments of the present disclosure may not address advantages described above.
According to an aspect of the present disclosure, there is provided a developer container including: a containing unit that contains developer; a transport unit that transports the developer; and a receiving unit that receives a driving force transmitted from a transmitting unit of a body of an image forming apparatus and transmits the driving force to the transport unit, wherein the developer container is removably attachable to the body of the image forming apparatus; wherein the developer container includes a first rotation stopping portion and a second rotation stopping portion that is farther from the receiving unit than the first rotation stopping portion; wherein when the developer container is attached to the body of the image forming apparatus, the first rotation stopping portion comes into contact with a first rotation stopper portion provided on the body of the image forming apparatus, and the second rotation stopping portion comes into contact with a second rotation stopper portion provided on the body of the image forming apparatus; and wherein a spatial allowance between the first rotation stopping portion and the first rotation stopper portion is less than a spatial allowance between the second rotation stopping portion and the second rotation stopper portion.
An exemplary embodiment of the present disclosure will be described in detail based on the following figures, wherein:
While an exemplary embodiment will now be described with reference to the drawings as a specific example of the present disclosure, the present disclosure is not limited to the exemplary embodiment described below.
To facilitate understanding of the following description, in the drawings, the front-back direction (medium transporting direction), the left-right direction (medium width direction), and the up-down direction are defined as the X-axis direction, the Y-axis direction, and the Z-axis direction, respectively. In addition, the directions shown by arrows X, −X, Y, −Y, Z, and −Z are defined as forward, backward, rightward, leftward, upward, and downward, respectively, and sides in those directions are defined as the front side, the back side, the right side, the left side, the top side, and the bottom side, respectively.
In addition, in the drawings, a circle with a dot in the middle represents an arrow coming out of the page, and a circle with an X in the middle represents an arrow going into the page.
In the drawings, components other than those to be described with reference to the drawings are omitted as appropriate to facilitate understanding.
Referring to
Referring to
The image processor GS receives print information input by, for example, a personal computer PC, which is an example of an image-information transmission device and electrically connected to the apparatus body U1. The image processor GS converts the print information into image information used to form latent images corresponding to images of four colors Y, M, C, and K, which are yellow, magenta, cyan, and black, respectively, and outputs the image information to the writing drive circuit DL at a preset time.
When a document image is a single-color image, that is, a monochrome image, only the image information for black is input to the writing drive circuit DL.
The writing drive circuit DL includes drive circuits (not illustrated) for respective colors Y, M, C, and K, and outputs signals corresponding to the input image information to LED heads LHy, LHm, LHc, and LHk, which are examples of latent-image forming units provided for respective colors, at preset times.
Referring to
The image forming devices UY, UM, and UC for the other colors have a structure similar to that of the image forming device UK for the black color.
The surfaces of the photoconductors Py to Pk are uniformly charged by the charging rollers CRy to CRk in charging regions Q1y, Q1m, Q1c, and Q1k in which the photoconductors Py to Pk face the charging rollers CRy to CRk, respectively, and then the LED heads LHy to LHk write latent images on the surfaces in latent-image forming regions Q2y, Q2m, Q2c, and Q2k. The electrostatic latent images written on the surfaces are developed into toner images in developing regions Q3y, Q3m, Q3c, and Q3k in which the photoconductors Py to Pk face the developing devices Gy to Gk, respectively. The developed toner images are transported to first transfer regions Q4y, Q4m, Q4c, and Q4k in which the photoconductors Py to Pk are in contact with an intermediate transfer belt B, which is an example of an intermediate transfer body. First transfer rollers T1y, T1m, T1c, and T1k, which are examples of first transfer units and disposed behind the intermediate transfer belt B in the first transfer regions Q4y, Q4m, Q4c, and Q4k, respectively, receive a first transfer voltage from the power supply circuit E controlled by the controller C at preset times, the first transfer voltage having a polarity opposite to a polarity with which toner is charged.
The toner images on the photoconductors Py to Pk are transferred onto the intermediate transfer belt B by the first transfer rollers T1y, T1m, T1c, and T1k in a first transfer process.
After the first transfer process, residues and deposits, such as residual toner and discharge products, on the surfaces of the photoconductors Py, Pm, Pc, and Pk are removed by the photoconductor cleaners CLy, CLm, CLc, and CLk. The cleaned surfaces of the photoconductors Py, Pm, Pc, and Pk are recharged by the charging rollers CRy, CRm, CRc, and CRk.
The charging rollers CRy to CRk are in contact with charging cleaners CCy, CCm, CCc, and CCk, which are examples of cleaning units for charging members. Thus, the charging cleaners CCy to CCk remove residues and the like that have been transferred from the photoconductors Py to Pk to the charging rollers CRy to CRk instead of being removed by the photoconductor cleaners CLy to CLk.
Referring to
A belt cleaner CLb, which is an example of a cleaning unit for the intermediate transfer body, is disposed in front of the intermediate transfer belt B.
A second transfer roller T2b, which is an example of a second transfer unit, is disposed to face a surface of a portion of the intermediate transfer belt B in contact with the backup roller T2a. The backup roller T2a and the second transfer roller T2b constitute a second transfer device T2 according to the exemplary embodiment. A region in which the second transfer roller T2b and the intermediate transfer belt B face each other serves as a second transfer region Q5.
A single-color or multicolor toner image composed of images successively transferred onto the intermediate transfer belt B in a superposed manner by the first transfer rollers T1y, T1m, T1c, and T1k in the first transfer regions Q4y, Q4m, Q4c, and Q4k is transported to the second transfer region Q5.
The first transfer rollers T1y to T1k, the intermediate transfer belt B, and the second transfer device T2 constitute a transfer device according to the exemplary embodiment as an example of a transfer unit.
A manual feed tray TR1, which is an example of a medium stacking portion, is disposed below the control substrate SC. The manual feed tray TR1 includes a raising-and-lowering plate PL1 as an example of a raising-and-lowering unit. Recording sheets S, which are examples of media, are stackable on an upper surface of the raising-and-lowering plate PL1. During printing, the back end of the raising-and-lowering plate PL1 is raised to raise the back ends of the recording sheets S. A paper feed roller Rp, which is an example of a feeding unit, is disposed at the back of the raising-and-lowering plate PL1. When the raising-and-lowering plate PL1 is moved to a raised portion, the paper feed roller Rp comes into contact with the uppermost one of the stacked recording sheets S. A retard pad Rpd, which is an example of a separating unit, is disposed behind the paper feed roller Rp.
The recording sheets S stacked on the manual feed tray TR1 are fed by the paper feed roller Rp and separated from each other in a region in which the retard pad Rpd and the paper feed roller Rp are in contact with each other, and then each recording sheet S is transported to a manual feed path SH0, which is an example of a medium transport path. The recording sheet S transported to the manual feed path SH0 enters a first paper feed path SH6, which is also an example of a medium transport path. Registration rollers Rr, which are examples of transport units and examples of paper-feed-time adjustment members, are disposed at an upper end of the first paper feed path SH6. The registration rollers Rr feed the recording sheet S into the medium transport path SH toward the second transfer region Q5 at a time corresponding to a time at which the toner image on the intermediate transfer belt B reaches the second transfer region Q5.
The toner image on the intermediate transfer belt B is transferred onto the recording sheet S fed to the second transfer region Q5. After the toner image is transferred in the second transfer region Q5, the belt cleaner CLb cleans the intermediate transfer belt B by removing residues, such as residual toner and discharge products, on the surface of the intermediate transfer belt B.
The recording sheet S to which the toner image has been transferred is transported to a fixing region Q6 of a fixing device F, which is an example of a fixing unit. The fixing device F includes a heating roller Fh, which is an example of a heating unit, and a pressing roller Fp, which is an example of a pressing unit. A region in which the heating roller Fh and the pressing roller Fp are in contact with each other at a preset pressure serves as the fixing region Q6. The unfixed toner image on the surface of the recording sheet S is fixed by heat and pressure when the recording sheet S passes through the fixing region Q6.
The recording sheet S to which the image is fixed is output to the output tray TRh by output rollers Rh, which are examples of medium output units.
An additional connection path SH1 for reversal, which is an example of a transport path, is provided to the right of the output rollers Rh. The additional connection path SH1 branches from the medium transport path SH and extends rightward, and a gate GT1, which is an example of a switching unit, is disposed at a location at which the additional connection path SH1 branches from the medium transport path SH.
The printer U according to the exemplary embodiment includes a reversing unit U5 supported on a back surface of the apparatus body U1. A reversing path SH2, which is an example of a second transport path, is disposed in the reversing unit U5. An upstream end of the reversing path SH2 is connected to a right end of the additional connection path SH1 of the apparatus body U1. A downstream end of the reversing path SH2 is joined to the first paper feed path SH6 at a location upstream of the registration rollers Rr of the apparatus body U1.
Accordingly, when double-sided printing is performed, the recording sheet S having an image recorded on one side thereof is transported along the medium transport path SH until the trailing edge in the transporting direction passes the gate GT1, and then the output rollers Rh are rotated in the reverse direction so that the recording sheet S is transported to the additional connection path SH1 and the reversing path SH2. The recording sheet S is transported by transport rollers Ra, which are examples of transport members and disposed on the reversing path SH2, and fed to the registration rollers Rr again in a reversed state.
In the printer U according to the exemplary embodiment, a paper feed module U6 is disposed below the apparatus body U1. A paper feed tray TR2 is disposed in the paper feed module U6. A second paper feed path SH7, which is an example of a transport path, is provided in a back region of the paper feed module U6. The second paper feed path SH7 extends in the up-down direction. An upper end of the second paper feed path SH7 is connected to a lower end of the first paper feed path SH6.
The paper feed tray TR2 according to the exemplary embodiment has a structure similar to that of the manual feed tray TR1 except that the length thereof in the front-back direction is longer than that of the manual feed tray TR1. Therefore, similarly to the manual feed tray TR1, the paper feed module U6 also includes a paper feed roller Rp′, a raising-and-lowering plate PL1′, and other components. The recording sheet S fed by the paper feed roller Rp′ is transported to the first paper feed path SH6. The second paper feed path SH7 allows passage of the recording sheet S transported from below when the paper feed module U6 has an additional paper feed module U6 disposed therebelow.
Referring to
Referring to
Toner receivers 4y, 4m, 4c, and 4k, which are examples of developer receivers, are disposed in front of and below the toner discharge tubes 3y to 3k in respective ones of the cartridge receiving chambers 2y to 2k. The toner receivers 4y to 4k have semicylindrical shapes that project rightward in the cartridge receiving chambers 2y, 2m, 2c, and 2k and have openings capable of receiving toner in upper surfaces thereof.
Body gears 6y, 6m, 6c, and 6k, which are examples of driving units, are disposed at lower ends of respective ones of the cartridge receiving chambers 2y to 2k. Each of the body gears 6y to 6k receives a driving force from a motor (not illustrated), which is an example of a drive source. The body gears 6y to 6k are disposed such that only upper end portions thereof are exposed to the outside.
Thus, the body gears 6y to 6k are disposed below the toner cartridges 1y to 1k, that is, outside the toner cartridges 1y to 1k in the up-down direction.
Rotation stopper projections 7y, 7m, 7c, and 7k, which are examples of first rotation stopper portions, are disposed diagonally above the body gears 6y to 6k. The rotation stopper projections 7y to 7k have cylindrical shapes that project rightward in the cartridge receiving chambers 2y, 2m, 2c, and 2k.
Rotation stopper recesses 8y, 8m, 8c, and 8k, which are examples of second rotation stopper portions, are provided in upper regions of the cartridge receiving chambers 2y to 2k. The rotation stopper recesses 8y to 8k are cylindrical recesses that are recessed toward the inner region of the apparatus body U1. The rotation stopper recesses 8y to 8k according to the exemplary embodiment are formed in the shapes of long holes extending in the up-down direction.
The toner cartridges 1y to 1k will now be described. Since the toner cartridges 1y to 1k are similar or have similar structures except that the toner cartridges 1y to 1k have different sizes, only the toner cartridge 1y for the Y color will be described in detail, and description of the toner cartridges 1m, 1c, and 1k for the other colors will be omitted.
Referring to
The new-toner containing portion 11 includes a containing portion 21 in an upper region and a supply portion 22 in a lower region. Referring to
An end portion of the rotating shaft 23a is rotatably supported by an outer wall 21a of the containing portion 21. A stirring gear 24, which is an example of a second receiving unit, is supported by the outer end of the rotating shaft 23a at a location outside the outer wall 21a of the containing portion 21, that is, in front of the outer wall 21a in an attachment/removal direction of the toner cartridge 1y. When rotated, the stirring auger 23 according to the exemplary embodiment transports the developer in the containing portion 21 toward the outer wall 21a while stirring the developer.
The supply portion 22 has a tubular shape extending parallel to the rotating shaft 23a, and is connected to the containing portion 21 at an end of the supply portion 22 adjacent to the outer wall 21a. The supply portion 22 has a supply port 22a that opens downward at an end of the supply portion 22 adjacent to the inner region of the apparatus body U1. The supply portion 22 is disposed at a position corresponding to the position of the toner receiver 4y, and the supply port 22a is connected to the opening in the toner receiver 4y when the toner cartridge 1y is attached to the apparatus body U1.
A transport auger 26, which is an example of a transport unit, is disposed in the supply portion 22. The transport auger 26 includes a rotating shaft 26a extending parallel to the rotating shaft 23a of the stirring auger 23 and a helical blade 26b supported on an outer periphery of the rotating shaft 26a. A transport gear 27, which is an example of a third receiving unit, is supported by the outer end of the transport auger 26. The transport gear 27 meshes with the stirring gear 24. When rotated, the transport auger 26 according to the exemplary embodiment transports the developer in the supply portion 22 toward the supply port 22a while stifling the developer.
Thus, in the exemplary embodiment, the toner contained in the new-toner containing portion 11 is transported toward the supply port 22a while being stirred by the stirring auger 23 and the transport auger 26 disposed at the lower end of the new-toner containing portion 11, and is supplied to the developing device Gy through the toner receiver 4y in the apparatus body U1.
Referring to
The structures for attachment/detachment between the waste-toner receiving port 32 and the toner discharge tube 3y and between the supply portion 22 and the toner receiver 4y may be, for example, structures disclosed in Patent Document 1.
Referring to
A second intermediate gear 36, which is an example of a second intermediate transmitting unit, is disposed diagonally below the first intermediate gear 34. The second intermediate gear 36 meshes with the first intermediate gear 34.
A receiving gear 37, which is an example of a receiving unit, is disposed below the second intermediate gear 36. The receiving gear 37 meshes with the second intermediate gear 36. A lower end portion of the receiving gear 37 according to the exemplary embodiment is exposed at a location below a lower end surface 38 of the toner cartridge 1y. Here, the expression “upper end surface or lower end surface” is used to refer to an outermost surface among the upper or lower surfaces of the new-toner containing portion or the waste-toner containing portion of the cartridge. When the toner cartridge 1y is attached to the apparatus body U1, the receiving gear 37 meshes with the body gear 6y.
Referring to
The outer covering 41 according to the exemplary embodiment has plural openings 41a, 41b, and 41c. The new-toner containing portion 11 according to the exemplary embodiment includes protrusions 42 that protrude outward at positions corresponding to the positions of the openings 41a and 41b in the outer covering 41. The protrusions 42 according to the exemplary embodiment protrude to a position corresponding to the outer end (outer surface) of the outer covering 41 in the attachment/removal direction. Therefore, the volume of the developer containable in the new-toner containing portion 11 may be increased compared to when the protrusions 42 are not provided. The waste-toner containing portion 12 according to the exemplary embodiment includes a protrusion 43 that protrudes outward similarly to the protrusions 42 at a position corresponding to the position of the opening 41c in the outer covering 41. Therefore, the volume of the developer containable in the waste-toner containing portion 12 may be increased compared to when the protrusion 43 is not provided.
The toner cartridge 1y according to the exemplary embodiment has a pair of upper and lower operation holes 46, which are examples of operation units, in the outer side thereof. An operator intending to replace the toner cartridge 1y may insert their thumb and index finger into the upper and lower operation holes 46 to pinch and pull out the toner cartridge 1y in the forward direction to remove the toner cartridge 1y or push the toner cartridge 1y in the backward direction to attach the toner cartridge 1y.
Referring to
A rotation stopping projection 52, which is an example of a second rotation stopping portion, is formed on an inner wall 21b of the new-toner containing portion 11. The rotation stopping projection 52 is disposed at a position corresponding to the position of the rotation stopper recess 8y. The rotation stopping projection 52 has a cylindrical shape and is formed such that the outer diameter of the rotation stopping projection 52 corresponds to the minor-axis dimension of the rotation stopper recess 8y having the shape of a long hole.
In the exemplary embodiment, a “spatial allowance”, that is, a size difference referred to as a “clearance”, a “margin”, or a “play”, is provided between the rotation stopper projection 7y and the rotation stopping recess 51 and between the rotation stopper recess 8y and the rotation stopping projection 52. Here, the terms such as “spatial allowance” and “play” are used to refer to the size of a space that allows movement of the toner cartridge 1y relative to the apparatus body U1 while the toner cartridge 1y is in a positioned state. With no “play” at all, the toner cartridge 1y cannot be attached or removed when manufacturing errors or assembly errors are large, and the operation efficiency is reduced because the toner cartridge 1y cannot be attached without accurate manual positioning by the operator. Therefore, the “play” is always provided. In the exemplary embodiment, the play between the rotation stopper projection 7y and the rotation stopping recess 51 is less than the play between the rotation stopper recess 8y and the rotation stopping projection 52.
In the exemplary embodiment, the length by which the rotation stopper projection 7y projects is greater than the length by which the rotation stopping projection 52 projects. In addition, in the exemplary embodiment, the length (depth) of the rotation stopping recess 51 is greater than the length of the rotation stopping projection 52.
In each of the toner cartridges 1y to 1k according to the exemplary embodiment having the above-described structure, the transport auger 26 is disposed in a central region in the up-down direction. The driving force for the transport auger 26 is transmitted from the apparatus body U1 through the receiving gear 37 exposed at a location below the lower end surface of the waste-toner containing portion 12.
In the structure of the related art, the driving force is transmitted from the apparatus body U1 at a position of the transport gear 27, and members of the toner cartridge 1y cannot be arranged around the supply portion 22 due to the presence of a structure of the apparatus body U1. In other words, according to the structure of the related art, the entirety of a transmitting unit including a rotating shaft and a gear provided in the apparatus body to transmit the driving force to the transport auger is disposed on the inner side of the end surface of the new-toner containing portion or the waste-toner containing portion in the up-down direction. Therefore, due to the installation space for the transmitting unit provided in the apparatus body, it is difficult increase the capacity of the waste-toner containing portion 12 from the structural point of view.
In contrast, in the exemplary embodiment, a portion of the receiving gear 37 that receives the driving force from the apparatus body U1 is disposed below the lower end surface of each of the toner cartridges 1y to 1k.
In each of the toner cartridges 1y to 1k according to the exemplary embodiment, the transport auger 26 is disposed at the lower end of the new-toner containing portion 11 and below the upper end of the waste-toner containing portion 12.
In addition, in each of the toner cartridges 1y to 1k according to the exemplary embodiment, the receiving gear 37 is disposed below the transport auger 26 and below the upper end of the waste-toner containing portion 12. In the exemplary embodiment, the transport auger 26 is disposed below the central region of each of the toner cartridges 1y to 1k in the up-down direction, and the number of intermediate gears is increased when the receiving gear 37 is disposed at the upper end of each of the toner cartridges 1y to 1k. In particular, in the exemplary embodiment, each of the toner cartridges 1y to 1k is long in the up-down direction (has a longitudinal direction in the up-down direction), and the number of intermediate gears is easily increased. In addition, when the receiving gear 37 is disposed at the upper end, the intermediate gears are to be disposed on an outer surface of the new-toner containing portion 11. Therefore, the protrusions 42 on the new-toner containing portion 11 cannot be easily formed, and the capacity of the new-toner containing portion 11 is reduced. In contrast, in the exemplary embodiment, the receiving gear 37 is disposed at the lower end.
In each of the toner cartridges 1y to 1k according to the exemplary embodiment, the waste-toner receiving port 32 of the waste-toner containing portion 12 is disposed above the transport auger 26.
In addition, in the printer U according to the exemplary embodiment, the body gears 6y to 6k of the apparatus body U1 are disposed on the outer side of the lower end surfaces of the toner cartridges 1y to 1k.
In each of the toner cartridges 1y to 1k according to the exemplary embodiment, the outer covering 41 is provided.
In addition, in each of the toner cartridges 1y to 1k according to the exemplary embodiment, the protrusions 42 and 43 are formed at positions corresponding to the positions of the openings 41a to 41c in the outer covering 41.
Referring to
In contrast, in each of the toner cartridges 1y to 1k according to the exemplary embodiment, a structure for stopping the rotation is provided at two locations, that is, a location of the rotation stopper projection 7y and the rotation stopping recess 51 and a location of the rotation stopper recess 8y and the rotation stopping projection 52. The rotation stopper projection 7y and the rotation stopping recess 51, which are closer to the receiving gear 37, have a smaller play.
In each of the toner cartridges 1y to 1k according to the exemplary embodiment, the rotation stopping projection 52 provided on the new-toner containing portion 11 has a projecting shape. When a portion for stopping the rotation provided on the new-toner containing portion 11 has a recessed shape, the portion for stopping the rotation is recessed into of the new-toner containing portion 11, and the capacity of the new-toner containing portion 11 is reduced. In contrast, in the exemplary embodiment, the rotation stopping projection 52 provided on the new-toner containing portion 11 has a projecting shape.
In addition, in the printer U according to the exemplary embodiment, each of the rotation stopper recesses 8y to 8k in the apparatus body U1 is formed in the shape of a long hole extending in the up-down direction.
In each of the toner cartridges 1y to 1k according to the exemplary embodiment, the rotation stopping recess 51 provided on the waste-toner containing portion 12 has a recessed shape. A frame of the manual feed tray TR1 is disposed near the rotation stopping recess 51 in the apparatus body U1, and the spatial allowance in the apparatus body U1 is small. Therefore, when a recess that is recessed into the apparatus body U1 is provided, the overall size of the printer U is increased as a result. In contrast, in the exemplary embodiment, the rotation stopping recess 51 is recessed into each of the toner cartridges 1y to 1k.
Referring to
While the exemplary embodiment of the present disclosure has been described in detail, the present disclosure is not limited to the above-described exemplary embodiment. Obviously, various alterations and modifications may be arrived at by those skilled in the art within the scope described in the claims, and it is to be understood that such alterations and modifications are naturally included in the technical scope of the present disclosure. Constituent elements of the above-described exemplary embodiment may be applied in any combination without departing from the spirit of the present disclosure.
Modifications (H01) to (H010) of the present disclosure will now be described.
(H01) Although the printer U is described as an example of an image forming apparatus in the above-described exemplary embodiment, the image forming apparatus is not limited to this. The image forming apparatus may be, for example, a copy machine, a facsimile machine, or a multifunction machine having some or all of these functions.
(H02) Although the receiving gear 37 is disposed at the lower end of each of the toner cartridges 1y to 1k in the above-described exemplary embodiment, the receiving gear 37 is not limited to this. The receiving gear 37 may be disposed at the upper end of each of the toner cartridges 1y to 1k.
(H03) Although four image forming devices UY to UK are provided in the above-described exemplary embodiment, image forming devices for two, three, or five or more colors may be provided.
(H04) Although the gears 24, 27, and 34 to 37 are disposed on the front surface of each of the toner cartridges 1y to 1k in the attachment/removal direction in the above-described exemplary embodiment, the gears are not limited to this. The gears may be disposed on the back surface of each toner cartridge in the attachment/removal direction.
(H05) Although the outer covering 41 is provided in the above-described exemplary embodiment, the outer covering 41 may be omitted.
(H06) The positions of the transport auger 26 and the waste-toner receiving port 32 are not limited to those in the above-described exemplary embodiment, and may be changed in accordance with, for example, the design or specifications.
(H07) The combinations of the projections and the recesses for stopping the rotation are not limited to those in the above-described exemplary embodiment. For example, the rotation stopping portions on each of the toner cartridges 1y to 1k may both have a projecting shape or a recessed shape. Alternatively, the arrangement of the recesses and projections may be reversed from that in the above-described exemplary embodiment.
(H08) Although the rotation stopper portions and the rotation stopping portions are formed of projecting portions and hole-shaped portions in the above-described exemplary embodiment, the rotation stopper portions and the rotation stopping portions are not limited to this. For example, as illustrated in
(H09) The relationship between the lengths of the projections 7y and 52 is not limited to that in the above-described exemplary embodiment. The relationship between the lengths of the projections 7y and 52 may be reversed, or the projections 7y and 52 may have the same length.
(H010) Although the new-toner containing portion 11 and the waste-toner containing portion 12 are provided in the above-described exemplary embodiment, the developer container is not limited to this. For example, the developer container may be a toner cartridge including only the new-toner containing portion 11 or a waste toner box including only the waste-toner containing portion 12.
The foregoing description of the exemplary embodiments of the present disclosure has been provided for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Obviously, many modifications and variations will be apparent to practitioners skilled in the art. The embodiments were chosen and described in order to best explain the principles of the disclosure and its practical applications, thereby enabling others skilled in the art to understand the disclosure for various embodiments and with the various modifications as are suited to the particular use contemplated. It is intended that the scope of the disclosure be defined by the following claims and their equivalents.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2021-054093 | Mar 2021 | JP | national |
This is a continuation of International Application No. PCT/JP2021/034100 filed on Sep. 16, 2021, and claims priority from Japanese Patent Application No. 2021-054093 filed on Mar. 26, 2021.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/JP2021/034100 | Sep 2021 | US |
| Child | 18447452 | US |
