Developing cartridge

Abstract

The developing box comprises a developing shell and a developing roller rotatably arranged in the developing shell, the developing roller rotates around a first rotating axis parallel to the left-right direction, the developing shell comprises a powder bin used for containing a developing agent, and a first developing agent supplementing opening is formed in one of the left end and the right end of the developing shell; the developing box further comprises a developing agent supplementing bin provided with a first containing cavity and a second containing cavity which are arranged in the left-right direction, and the developing agent supplementing bin is provided with a second developing agent supplementing opening and a third developing agent supplementing opening. Developing agents can be supplemented to the first containing cavity and the second containing cavity through the second developing agent supplementing opening and the third developing agent supplementing opening respectively. The first developing agent supplementing opening, the second developing agent supplementing opening and the third developing agent supplementing opening are directly exposed outside the developing box; therefore, it can be ensured that the first containing cavity and the second containing cavity can be filled with the developer as much as possible, and the filling mode is simple, convenient and rapid.

Description

Technical Field

[0001] The invention relates to the field of electronic photographic imaging, and in particular to a developing box detachably installed in an imaging device. Background Art

[0002] The developing box can be installed to the imaging device in a detachable manner. The developing box includes a developing shell and a developing roller rotatably arranged in the developing shell. A powder bin for accommodating the developer required for imaging of the imaging device is formed in the developing shell. The developing roller is used to supply the developer to the photosensitive component outside the developing box. The developing shell is provided with a first powder filling port for filling the powder bin with the developer.

[0003] An existing developer cartridge increases the service life of the developer cartridge by adding a developer replenishing box, the developer replenishing box is connected to the powder bin, and as the developer in the powder bin is continuously consumed, the developer can be replenished to the powder bin; however, after the developer replenishing box is added to the developer cartridge, the process of filling the powder bin and the developer replenishing box with developer becomes cumbersome, and it is not easy to refill the powder bin and the developer replenishing box with a predetermined amount of developer. Summary of the invention

[0004] The present invention provides a developing box that can solve at least one of the above technical problems. The specific technical solution is as follows:

[0005] A developing box, which can be detachably mounted to an imaging device, comprises a developing shell and a developing roller rotatably arranged in the developing shell, the developing roller rotates around a first rotation axis parallel to the left-right direction, the developing shell comprises a cover body and a main shell combined with each other, the developing roller is arranged on one of the two, a powder bin for accommodating a developer is formed between the cover body and the main shell, and the developing roller is used to supply the developer to a photosensitive component arranged opposite to the developing roller.

[0006] The developing shell is provided with a first developer replenishing port at one of the left and right ends, and the developer can be filled into the powder bin through the first developer replenishing port; the developing box also includes a developer replenishing bin for replenishing the developer into the powder bin, the developer replenishing bin is connected with the powder bin, the developer replenishing bin includes a supply cavity for accommodating the developer, and the supply cavity includes a first accommodating cavity and a second accommodating cavity arranged along the left and right directions.

[0007] The developer replenishing bin is also provided with a second developer replenishing port and a third developer replenishing port, and the developer can be replenished to the first accommodating chamber through the second developer replenishing port, and replenished to the second accommodating chamber through the third developer replenishing port; the first developer replenishing port, the second developer replenishing port and the third developer replenishing port are all directly exposed to the outside of the developing box.

[0008] In the left-right direction, one of the second developer replenishment port and the third developer replenishment port is located at the same end of the developing cartridge as the first developer replenishment port.

[0009] After the developer replenishing bin is installed to the developing housing, a laser port is formed between the developer replenishing bin and the developing housing, and the laser emitted by the imaging device can reach the surface of the photosensitive component through the laser port.

[0010] The developer replenishing bin includes a first shell and a second shell combined with each other, the supply cavity is formed between the first shell and the second shell, the second shell includes a first side wall, a second side wall and a third side wall connected in sequence, the first side wall and the third side wall are located at the left and right ends of the second side wall, the second developer replenishing port is located on the first side wall, and the third developer replenishing port is located on the third side wall.

[0011] The inner surface of the second side wall facing the supply cavity is an inclined surface, and the distance from the inner surface to the powder bin gradually decreases from the middle position in the left and right directions of the developer box toward the left end and the right end respectively.

[0012] The outer surface of the second side wall facing the developing housing is arranged as an inclined surface, and the distance from the outer surface to the powder bin gradually decreases from the middle position in the left and right directions of the outer surface respectively toward the left end and the right end.

[0013] The second shell body / second side wall is provided with a first developer supply port and a second developer supply port, the first developer supply port is used to connect the first accommodating chamber and the powder bin, and the second developer supply port is used to connect the second accommodating chamber and the powder bin; in the left and right direction, the second developer replenishing port and one of the third developer replenishing port, the first developer replenishing port, and the first developer supply port are located at the same end of the developing box.

[0014] An opening direction of the first developer replenishment port and an opening direction of the first developer supply port intersect.

[0015] The second developer replenishing port and one of the third developer replenishing ports, the first developer replenishing port and the first developer supply port are projected onto a plane perpendicular to the left-right direction along the direction from right to left, and a straight line passing through the center of the second developer replenishing port and one of the third developer replenishing port and the center of the first developer replenishing port passes through the first developer supply port.

[0016] The first accommodating chamber and the second accommodating chamber are connected to each other; the first accommodating chamber and the second accommodating chamber are not connected to each other.

[0017] Compared with the prior art, the developer box provided by the present invention is provided with a second developer replenishing port and a third developer replenishing port. The user can fill the developer into the first accommodating chamber through the second developer replenishing port, and can also fill the developer into the second accommodating chamber through the third developer replenishing port. This can ensure that both the first accommodating chamber and the second accommodating chamber can be filled with as much developer as possible. During the filling process, this filling method does not require multiple vibrations or multiple rotations of the developer box, and filling the developer becomes simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1A and Figure 1B It is a three-dimensional view of the developing box involved in the present invention.

[0019] Figure 2 The present invention relates to a developing box edge Figure 1A The plan view after cutting along the AA direction.

[0020] Figure 3 It is a three-dimensional view of a developing shell in a developing box according to the present invention.

[0021] Figure 4A and Figure 4B It is a three-dimensional view of a developer replenishing bin of a developer cartridge according to the present invention.

[0022] Figure 5 The present invention is an exploded view of a developer replenishing bin in a developer box.

[0023] Figure 6 The present invention relates to a developing shell and a developer replenishing bin in a developing box, Figure 1B The plan view after cutting along the BB direction.

[0024] Figure 7 It is a plan view in which the second developer replenishing port and one of the third developer replenishing port, the first developer replenishing port and the first developer supply port in the developer box involved in the present invention are projected onto a plane perpendicular to the left-right direction from right to left. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] The developing box 100 can be detachably mounted to an image forming device, such as Figure 1A , Figure 1B and Figure 2 As shown, the developing cartridge 100 includes a developing housing 10 and a developing roller 20 rotatably disposed in the developing housing 10 , the developing roller 20 rotates around a first rotation axis L1 , and a direction parallel to the first rotation axis L1 is a left-right direction.

[0027] The developing shell 10 includes a cover body 11 and a main shell 12 which are combined with each other, and the developing roller 20 is arranged on one of the two. A powder bin 13 for accommodating a developer is formed between the cover body 11 and the main shell 12, and the developing roller 20 is used to supply the developer to a photosensitive component arranged opposite to the developing roller 20; the developing box 100 also includes a powder discharge knife 40, a powder discharge port 41 and a first seal. The developer in the powder bin 13 is conveyed to the developing roller 20 through the powder discharge port 41, and the powder discharge knife 40 is used to adjust the developer thickness on the surface of the developing roller 20. When the developing box 100 is not in use, the first seal is used to seal the powder discharge port 41 to prevent leakage of the developer. When the developing box 100 is in use, the first seal needs to be removed before the developer can be conveyed to the developing roller 20.

[0028] The developing box 100 also includes a driving force receiving member 50 for receiving a driving force from an imaging device, and the developing roller 20 is capable of receiving the driving force from the driving force receiving member 50 to rotate around a first rotation axis L1. In the left and right directions, the developing box 100 sets one end of the driving force receiving member 50 as a driving end, and the end opposite to the driving end as a non-driving end. The driving end is located at the right end of the developing housing 10, and the non-driving end is located at the left end of the developing housing 10.

[0029] Continue as Figure 1A and Figure 1B As shown, the developing housing 10 includes a left side wall 15 and a right side wall 16 spaced apart in the left-right direction, and a first developer replenishing port 111 is provided on one of the left side wall 15 and the right side wall 16 of the developing housing 10, and the developing box 100 also includes a fourth sealing member 113 for sealing the first developer replenishing port 111.

[0030] like Figure 3 As shown, the developing housing 10 is also provided with at least one developer receiving port 112, through which the developer outside the powder bin 13 can enter the powder bin 13, and the first developer replenishing port 111 and the developer receiving port 112 are located on different side walls of the developing housing 10; in some embodiments, the number of the developer receiving port 112 is two, and the two developer receiving ports 122 are respectively arranged adjacent to the left side wall 15 and the right side wall 16 of the developing housing 10.

[0031] In some embodiments, a first handle 14 for grasping the developing box 100 is also provided on the developing housing 10, and a recess is formed on the first handle 14 for easy entry of fingers, and an anti-slip member is provided for preventing the developing box 100 from falling off when grasping, and the anti-slip member is configured as a rib; in the left and right directions, the first handle 14 is located between the two developer receiving ports 122.

[0032] like Figure 1A , Figure 1B , Figure 2 , Figure 4A , Figure 4B and Figure 5 As shown, the developer box 100 also includes a developer replenishing bin 60 for replenishing the developer to the powder bin 13, and the developer replenishing bin 60 includes a first shell 61 and a second shell 62 that are combined with each other. A supply cavity for accommodating the developer is formed between the first shell 61 and the second shell 62, and the supply cavity includes a first accommodating cavity 63 and a second accommodating cavity 64 arranged in the left-right direction. In some embodiments, the first accommodating cavity 63 and the second accommodating cavity 64 are connected to each other.

[0033] After the developer replenishing bin 60 is installed to the developing housing 10 , a laser port 30 is formed between the developer replenishing bin 60 and the developing housing 10 , and the laser emitted by the imaging device can reach the surface of the photosensitive component through the laser port 30 to expose the surface of the photosensitive component.

[0034] like Figure 1B , Figure 4A , Figure 4B , Figure 5 and Figure 6 As shown, the second shell 62 includes a first side wall 621, a second side wall 622 and a third side wall 623 which are connected in sequence, and the first side wall 621 and the third side wall 623 are respectively located at the left and right ends of the second shell 62 / second side wall 622; a second developer replenishing port 65 is provided on the first side wall 621, and a third developer replenishing port 66 is provided on the third side wall 623, the second developer replenishing port 65 is used to connect the inside and outside of the first accommodating chamber 63, and the third developer replenishing port 66 is used to connect the inside and outside of the second accommodating chamber 64, and the user can fill the developer into the first accommodating chamber 63 through the second developer replenishing port 65, and can also fill the developer into the second accommodating chamber 64 through the third developer replenishing port 66; the developer replenishing box 100 also includes a second seal and a third seal, the second seal is used to seal the second developer replenishing port 65, and the third seal is used to seal the third developer replenishing port 66.

[0035] In the left-right direction, one of the second developer replenishing port 65 and the third developer replenishing port 66 is located at the same end of the developing cartridge 100 as the first developer replenishing port 111. Figure 1B , Figure 4A , Figure 4B , Figure 5 and Figure 6In the figure, the second developer replenishing port 65 is located on the left side of the developer box 100 / developer housing 10, and the third developer replenishing port 66 is located on the right side of the developer box 100 / developer housing 10. The first developer replenishing port 111, the second developer replenishing port 65 and the third developer replenishing port 66 are all directly exposed to the outside of the developer box 100, so that the user can directly fill the powder bin 13 and the supply chamber with developer.

[0036] In the developer replenishing bin 60, the inner surface 6221 of the second side wall 622 facing the supply cavity is an inclined surface, so that the developer in the supply cavity flows from the middle toward the left and right ends respectively; in other words, from the approximate middle / middle position in the length direction / left-right direction of the developer box 100 toward the left end and the right end respectively, the distance from the inner surface 6221 to the powder bin 13 gradually decreases.

[0037] In some embodiments, the outer surface 6222 of the second side wall 622 facing the developing housing 10 is set as an inclined surface, and the distance from the outer surface 6222 to the powder bin 13 gradually decreases from the middle position of the outer surface 6222 in the left and right directions toward the left end and the right end respectively.

[0038] The filling process of the developing box provided by the present invention is: open the first developer replenishing port 111 and the second developer replenishing port 65, seal the third developer replenishing port 66, and then fill the developer into the first accommodating cavity 63 and the powder bin 13 at the same time. After the filling is completed, seal the opened second developer replenishing port 65 and the first developer replenishing port 111. Finally, turn the developing box 100 180 degrees, open the third developer replenishing port 66, fill the second accommodating cavity 64 with developer, and after the filling is completed, seal the third developer replenishing port 66.

[0039] In some embodiments, the second developer replenishment port 65 and the third developer replenishment port 66 may also be provided on the first housing 61 .

[0040] like Figure 5 and Figure 6As shown, at least one developer supply port is provided on the second shell 62 / second side wall 622, and the developer supply port is combined with the developer receiving port 112. The developer in the developer replenishing bin 60 can enter the powder bin 13 through the developer supply port and the developer receiving port 112, that is, the powder bin 13 is connected with the developer replenishing bin 60 through the developer supply port and the developer receiving port 11; in some embodiments, the developer replenishing bin 60 is provided with a first developer supply port 67 and a second developer supply port 68, and the first developer supply port 67 and the second developer supply port 68 are respectively arranged at the left and right ends of the second side wall 622, the first developer supply port 67 is used to connect the first accommodating chamber 63 and the powder bin 13, and the second developer supply port 68 is used to connect the second accommodating chamber 64 and the powder bin 13.

[0041] like Figure 6 and Figure 7 As shown in the figure, in the left-right direction, the second developer replenishing port 65, the first developer replenishing port 111 and the first developer supply port 67 are located at the same end of the developer box 100, and the third developer replenishing port 66 and the second developer supply port 68 are located at the other end of the developer box 100; the opening direction of the first developer replenishing port 111 intersects with the opening direction of the first developer supply port 67, and the second developer replenishing port 65, the first developer replenishing port 111 and the first developer supply port 67 are projected onto the plane M along the direction from right to left, passing through the second developer replenishing port 111. The straight line L2 of the center of the developer replenishing port 65 and the center of the first developer replenishing port 111 passes through the first developer supply port 67, and the plane M is perpendicular to the left and right direction; through such an arrangement, when filling the developer, the air in the powder bin 13 can flow faster toward the first accommodating chamber 63 or the second accommodating chamber 64, and then flow toward the second accommodating chamber 64 or the first accommodating chamber 63, and at the same time, the developer can also flow quickly between one of the first accommodating chamber 63 and the second accommodating chamber 64 and the powder bin 13, thereby making the filling efficiency of the developer faster.

[0042] In some embodiments, the developer replenishing bin 60 is provided with a second handle 69 for grasping the developer replenishing bin 60. Similar to the first handle 14, the second handle 69 is also formed with a recess for easy entry of fingers, and an anti-slip member is provided for preventing the developer replenishing bin 60 from falling off when grasping, and the anti-slip member is configured as a rib.

[0043] As described above, after the developer replenishing bin 60 is installed in the developing shell 10, a laser port 30 is formed between the developer replenishing bin 60 and the developing shell 10. In some embodiments, the developer replenishing bin 60 may not be provided with a second handle 69, and the user's hand may enter the laser port 30 to grasp the developing box 100. This not only increases the volume of the developer replenishing bin 60, but also does not affect the user's grasping of the developer replenishing bin 60 / developing box 100. Furthermore, the second side wall 622 of the second shell 62 in the developer replenishing bin 60 is tilted, which makes it more convenient for the user's hand to enter the laser port, and it also becomes easier for the user to grasp the developer replenishing bin 60 / developing box 100.

[0044] In some embodiments, the developer box 100 may also eliminate the first handle 14 , which may increase the volume of the powder bin 13 and will not affect the user's grip on the developer box 100 .

[0045] [Beneficial Effects]

[0046] Compared with the prior art, the developer box 100 provided by the present invention has the following beneficial effects:

[0047] In the first aspect, the developer cartridge 100 is provided with a second developer replenishing port 65 and a third developer replenishing port 66, and the user can fill the developer into the first accommodating chamber 63 through the second developer replenishing port 65, and can also fill the developer into the second accommodating chamber 64 through the third developer replenishing port 66, so as to ensure that the first accommodating chamber 63 and the second accommodating chamber 64 can be filled with as much developer as possible;

[0048] In addition, the distances from the inner surface 6221 and the outer surface 6222 of the second side wall 622 to the powder bin 13 are gradually reduced from the approximately middle part in the length direction / left-right direction of the developer cartridge 100 toward the left end and the right end, respectively, so that the developer in the developer replenishing bin 60 can flow toward the powder bin 13.

[0049] Even if the developer replenishing chamber 60 is configured to be small in the middle and large on both sides, the supply cavity can still be filled with as much developer as possible when the second developer replenishing port 65 and the third developer replenishing port 66 are provided.

[0050] Secondly, during the filling process of the developer, the developer can be filled into the first accommodating chamber 63 and the second accommodating chamber 64 through the second developer replenishing port 65 and the third developer replenishing port 66 respectively. During the filling process, there is no need to vibrate or rotate the developer box 100 multiple times. This filling method is simple and fast.

[0051] Thirdly, the developer box 100 provided by the present invention is provided with a first developer replenishing port 111. Compared with the developer box in which the first developer replenishing port 111 is not provided, the developer filled into the powder bin 13 can directly and quickly enter from the first developer replenishing port 111, which can ensure that the internal space of the powder bin 13 is filled with developer and simplify the filling steps of the operator.

[0052] Fourthly, when the first accommodating chamber 63 and the second accommodating chamber 64 are interconnected, during the filling process of the developer, it is not necessary to reserve a channel for air circulation between the powder filling device and the first developer replenishing port 111, the second developer replenishing port 65 and the third developer replenishing port 66 in the developer box 100. The powder filling device and the first developer replenishing port 111, the second developer replenishing port 65 and the third developer replenishing port 66 can fit tightly together, thereby playing a role in positioning the developer shell 10, the first shell 61 and the second shell 62. In addition, this can also prevent the developer from floating out of the first developer replenishing port 111, the second developer replenishing port 65 and the third developer replenishing port 66.

[0053] Fifthly, when the developer is filled into the developer replenishing bin 60 and the powder bin 13 at the same time and one of the first accommodating chamber 63 and the second accommodating chamber 64 is sealed, the air in the powder bin 13 can flow and gather faster through at least one of the first developer supply port 67 and the second developer supply port 68 toward the sealed first accommodating chamber 63 or the second accommodating chamber 64. This not only ensures that the second accommodating chamber 64, one of the first accommodating chamber 63, and the powder bin 13 are filled with as much developer as possible, but also speeds up the filling speed of the developer; when the sealed first accommodating chamber 63 or the second accommodating chamber 64 is released, the air inside it can be discharged.

[0054] In the sixth aspect, in the developer box 100 provided by the present invention, when the developer is filled into the developer replenishing bin 60 and the powder bin 13 at the same time, according to the air flow path described in the fifth aspect, the filling speed of the powder bin 13 can be greater than the filling speed of the developer replenishing bin 60. At the same time, the developer replenishing bin 60 and the powder bin 13 can both be filled with as much developer as possible. In particular, when the volume of the powder bin 13 is larger than the volume of the first accommodating chamber 63 or the second accommodating chamber 64, such an arrangement can speed up the overall filling speed of the developer box 100.

[0055] In the seventh aspect, the first accommodating chamber 63 and the second accommodating chamber 64 may not be connected. In this case, the developing box 100 still has the beneficial effects of the first, second, third, fifth and sixth aspects above.

Claims

1. A developing cartridge, detachably mounted to an imaging device, comprising a developing housing and a developing roller rotatably disposed in the developing housing, the developing roller rotating about a first rotation axis parallel to the left-right direction, the developing housing comprising a cover body and a main housing combined with each other, the developing roller being disposed on one of the cover body and the main housing, a powder bin for accommodating a developer being formed between the cover body and the main housing, the developing roller being used to supply the developer to a photosensitive component disposed opposite to the developing roller; The developer housing is provided with a first developer replenishing port at one of the left and right ends, and the developer can be filled into the powder bin through the first developer replenishing port; It is characterized in that The developer cartridge further includes a developer replenishing bin for replenishing developer to the powder bin, the developer replenishing bin is in communication with the powder bin, the developer replenishing bin includes a supply cavity for accommodating developer, the supply cavity includes a first accommodating cavity and a second accommodating cavity arranged in a left-right direction; The developer replenishing chamber is also provided with a second developer replenishing port and a third developer replenishing port, and the developer can be replenished into the first accommodating chamber through the second developer replenishing port and replenished into the second accommodating chamber through the third developer replenishing port; The first developer replenishing port, the second developer replenishing port and the third developer replenishing port are all directly exposed to the outside of the developing box.

2. The developing cartridge according to claim 1, characterized in that: In the left-right direction, one of the second developer replenishment port and the third developer replenishment port is located at the same end of the developing cartridge as the first developer replenishment port.

3. The developing cartridge according to claim 1, characterized in that: After the developer replenishing bin is installed to the developing housing, a laser port is formed between the developer replenishing bin and the developing housing, and the laser emitted by the imaging device can reach the surface of the photosensitive component through the laser port.

4. The developing cartridge according to claim 1, wherein: The developer replenishing bin comprises a first shell and a second shell which are combined with each other, the supply cavity is formed between the first shell and the second shell, the second shell comprises a first side wall, a second side wall and a third side wall which are connected in sequence, the first side wall and the third side wall are located at left and right ends of the second side wall, the second developer replenishing port is located on the first side wall, and the third developer replenishing port is located on the third side wall; The inner surface of the second side wall facing the supply cavity is an inclined surface, and the distance from the inner surface to the powder bin gradually decreases from the middle position in the left and right directions of the developer box toward the left end and the right end respectively.

5. The developing cartridge according to claim 4, characterized in that: The outer surface of the second side wall facing the developing housing is arranged as an inclined surface, and the distance from the outer surface to the powder bin gradually decreases from the middle position in the left and right directions of the outer surface respectively toward the left end and the right end.

6. The developing cartridge according to claim 4, characterized in that: The second housing / second side wall is provided with a first developer supply port and a second developer supply port, the first developer supply port is used to connect the first accommodating chamber and the powder bin, and the second developer supply port is used to connect the second accommodating chamber and the powder bin; In the left-right direction, one of the second developer replenishing port and the third developer replenishing port, the first developer replenishing port, and the first developer supplying port are located at the same end of the developing box.

7. The developing cartridge according to claim 6, wherein: An opening direction of the first developer replenishment port and an opening direction of the first developer supply port intersect.

8. The developing cartridge according to claim 6, wherein: The second developer replenishing port and one of the third developer replenishing ports, the first developer replenishing port and the first developer supply port are projected onto a plane perpendicular to the left-right direction along the direction from right to left, and a straight line passing through the center of the second developer replenishing port and one of the third developer replenishing port and the center of the first developer replenishing port passes through the first developer supply port.

9. The developing cartridge according to any one of claims 1 to 8, characterized in that: The first accommodating chamber and the second accommodating chamber are communicated with each other.

10. The developing cartridge according to any one of claims 1 to 8, characterized in that: The first accommodating chamber and the second accommodating chamber are not connected.

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