Detected structure, developing box and printing equipment

A simplified detected structure with magnetic components in the developing box reduces costs and enhances production efficiency by eliminating axial movement and additional structures, ensuring accurate detection.

CN222145400UActive Publication Date: 2024-12-10ZHUHAI TUOJIA TECH
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Patent Information

Application Number
CN202420880757.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-25
Publication Date
2024-12-10
Estimated Expiration
2034-04-25

AI Technical Summary

Technical Problem

Existing detection mechanisms in developing boxes are complex, requiring multiple parts and are costly, and existing detection systems are inefficient, and are inefficient, and prone to errors in the detection of the detection gear, which are not accurate, leading to increased material and assembly costs and reduced production efficiency.

Method used

A simplified detected structure with a side cover, detected member, transmission gear, and detection gear, utilizing a magnetic connection between the driving part and sensing part to enable perpendicular movement for detection signal transmission, reducing the need for axial movement and additional structures.

Benefits of technology

The simplified structure reduces material, processing, and assembly costs while improving production efficiency by eliminating the need for complex axial movement and additional components, ensuring accurate detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a detected structure, a developing box and printing equipment, the detected structure comprises a side cover, and a detected piece, a transmission gear and a detection gear which are arranged on the side cover, the detected piece is provided with a sensing part, and the detection gear is provided with a driving part. In the process that the transmission gear drives the detection gear to rotate, the driving part gradually gets close to the sensing part and acts on the sensing part, so that the sensing part drives the detected piece to slide towards the first direction, and then the detected end of the detected piece is in contact with a detection device of the printing equipment. Afterwards, the transmission gear continues to drive the detection gear to rotate, the driving part gradually gets away from the sensing part, the detected piece can move in the second direction, then the detected end of the detected piece is separated from the detection device of the printing equipment, the detection gear gradually separates from the transmission gear until the detection gear is in a non-meshing connection state, and finally one-time detection is achieved. According to the detected structure, the structure of the developing box can be simplified, and the material cost, the processing cost and the assembling cost of the developing box are reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to a detected structure, a developing box and a printing device. Background Art

[0002] The developing box is an important component of image forming equipment such as printers, and is also a printing consumable. When the developer inside it is used up, it needs to be replaced in time. In the process of replacing the developing box, it is necessary to detect and identify the specifications of the developing box, the printable amount, and whether it is a new developing box. At present, the detected structure on the developing box mostly adopts a detection gear structure, and a pushing part that cooperates with the internal detection mechanism of the printing device is arranged on the detection gear. The detection gear can be pushed and rotated by the driving force receiving component. When the detection gear rotates, it can bring the pushing part to the detection mechanism inside the printing device, and transmit the detection signal to the detection mechanism through the pushing part. In the process of rotation, the detection gear continuously moves outward along the axial direction and finally disengages from the driving force receiving component. This structure is relatively complex and requires more parts, which not only increases the material cost of the developing box, but also increases the processing and assembly cost of the developing box, increases the difficulty of assembling the developing box, and reduces the production efficiency. In addition, the transmission process of this structure is relatively complex. When one of the structures has defects or flaws, there may be a problem that the detection signal cannot be accurately transmitted, resulting in the inability of the developing box to be used normally on the machine. Therefore, in the process of designing the inspected part, the mold of the inspected part needs to be repeatedly studied and refined, and the production precision requirement is very high, which further increases the production cost of the developer box and reduces the production efficiency. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model aims to provide a detected structure, which can reduce the material cost, processing cost and assembly cost of the developer box and improve the production efficiency of the developer box.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is as follows: a detected structure, including a side cover, a detected member, a transmission gear and a detection gear; the detected member can be slidably connected to the side cover, and the detected member is provided with a sensing part; the transmission gear and the detection gear can be rotatably connected to the side cover, and the detection gear is provided with a driving part; the transmission gear and the detection gear have a meshing connection state and a non-meshing connection state; when the transmission gear and the detection gear are in a meshing connection state, the transmission gear can drive the detection gear to rotate, so that the detection gear on the detection gear is engaged. The driving part rotates and approaches the sensing part, the sensing part can receive the driving force of the driving part, and drive the detected part to slide along the first direction, so that the detected end of the detected part contacts the detection device of the printing device; after the detected end of the detected part contacts the detection device of the printing device, the transmission gear and the detection gear gradually disengage to a non-engaged connection state, the driving part gradually moves away from the sensing part, and the detected part can slide toward the second direction; wherein the first direction is opposite to the second direction, and the first direction and the second direction are both perpendicular to the axial direction of the transmission gear and the detection gear.

[0005] Compared with the prior art, the beneficial effect of the utility model is that: the detected structure is provided with a driving part on the detection gear, and a sensing part is provided on the detected part. In the process of the transmission gear driving the detection gear to rotate, the driving part gradually approaches the sensing part and acts on the sensing part, so that the sensing part drives the detected part to slide in the first direction, thereby making the detected end of the detected part contact with the detection device of the printing device to achieve the transmission of the detection signal. Afterwards, the transmission gear continues to drive the detection gear to rotate. In the process of the detection gear continuing to rotate, the driving part gradually moves away from the sensing part, and the detected part can move in the second direction, thereby making the detected end of the detected part disengage from the detection device of the printing device, and the detection gear gradually disengages from the transmission gear until it is in a non-engaged connection state, and finally achieves a detection. During the detection process, the detected part can move in a direction perpendicular to the axial direction of the transmission gear and the detection gear, and the detection gear can switch from a state of meshing connection with the transmission gear to a state of not meshing connection during rotation. There is no need to move along the axial direction, nor is there a need to set up a transmission structure that moves along the axial direction. Therefore, the structure of the developing box can be simplified, the material cost, processing cost and assembly cost of the developing box can be reduced, the difficulty of processing and assembling the developing box can be reduced, and the production efficiency of the developing box can be improved.

[0006] In the above-mentioned detected structure, the driving part and the sensing part are both magnetic components, and there is a distance between the driving part and the sensing part.

[0007] In the above-mentioned detected structure, the end of the driving part close to the rotation direction is the first end, and the end away from the rotation direction is the second end; the end of the sensing part close to the first direction is the first end, and the end close to the second direction is the second end; the magnetic pole of the first end of the driving part is the same as the magnetic pole of the second end of the sensing part, and the magnetic pole of the second end of the driving part is the same as the magnetic pole of the first end of the sensing part.

[0008] In the above-mentioned structure to be detected, two mounting parts are provided on the side cover, and mounting holes are opened on the mounting parts. The two ends of the detected part can be slidably inserted into the two mounting holes respectively, and the sensing part is located between the two mounting parts, and the outer diameter of the sensing part is larger than the inner diameter of the mounting hole.

[0009] In the above-mentioned detected structure, the side cover is provided with a limiting member extending along the sliding direction of the detected member, and the detected member is provided with a limiting groove, and the limiting groove is slidably connected to the limiting member.

[0010] In the above-mentioned detected structure, the driving part is an arc-shaped block extending along the circumferential direction of the detection gear.

[0011] In the above-mentioned detected structure, a reset member is provided on the side cover, and the reset member extends above the detection gear and can stop the driving part.

[0012] In the above-mentioned detected structure, the detection gear has a gear tooth portion and a missing tooth portion. When the transmission gear and the detection gear are in a meshing connection state, the transmission gear is meshingly connected with the gear tooth portion. When the transmission gear and the detection gear are in a non-meshing connection state, the missing tooth portion is located on the side of the transmission gear and is separated from the transmission gear.

[0013] The utility model also provides a developing box, comprising the above-mentioned detected structure. Since the developing box adopts the above-mentioned detected structure, it at least has all the beneficial effects that the above-mentioned detected structure can bring.

[0014] The utility model also provides a printing device, comprising the above-mentioned detected structure or the above-mentioned developing box. Since the printing device adopts the above-mentioned detected structure or the above-mentioned developing box, it at least has all the beneficial effects that the above-mentioned detected structure or the above-mentioned developing box can bring.

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the embodiment of the utility model when the detected structure is in a state to be detected;

[0017] Figure 2 It is a structural schematic diagram of the driving part in the detected structure of the embodiment of the utility model driving the sensing part and the detected component to move along the first direction;

[0018] Figure 3 It is a structural schematic diagram of the detected member in the detected structure of the embodiment of the utility model when it moves to the maximum displacement along the first direction;

[0019] Figure 4 It is a structural schematic diagram of the driving part in the detected structure of the embodiment of the utility model driving the sensing part and the detected component to move along the second direction;

[0020] Figure 5 It is a structural schematic diagram of the embodiment of the utility model when the driving part of the detected structure touches the reset member;

[0021] Figure 6 This is a schematic diagram of the structure of the detected component in an embodiment of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the side cover of an embodiment of the utility model;

[0023] Figure 8 It is a structural schematic diagram of the transmission gear and the detection gear of the embodiment of the utility model when they are in a meshing connection state;

[0024] Fig. 9 This is a schematic structural diagram of a transmission gear and a detection gear in an embodiment of the present utility model when they are in a non-engaged connection state.

[0025] Description of the accompanying drawings: 100 side cover, 110 mounting portion, 111 mounting hole, 120 limiting member, 130 resetting member, 200 detected member, 210 sensing portion, 211 limiting groove, 220 detected end, 300 transmission gear, 400 detection gear, 410 driving portion, 420 gear tooth portion, 430 missing tooth portion. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below. Figures 1 to 9 An embodiment of the utility model provides a detected structure, including an edge cover 100 , a detected member 200 , a transmission gear 300 and a detection gear 400 .

[0027] Reference Figures 1 to 5, the detected part 200 is slidably connected to the side cover 100, and the detected part 200 is provided with a sensing part 210. The transmission gear 300 and the detection gear 400 are both rotatably connected to the side cover 100, and the detection gear 400 is provided with a driving part 410. When the detection gear 400 rotates, the driving part 410 thereon can be driven to rotate together, so that the driving part 410 gradually approaches or gradually moves away from the sensing part 210, thereby establishing a connection with or disconnecting the sensing part 210. Of course, the connection between the driving part 410 and the sensing part 210 can be a contact connection, such as abutment, or a non-contact connection, such as a magnetic connection. When the driving part 410 and the sensing part 210 are in abutment, the force of the driving part 410 acting on the sensing part 210 is thrust, and when the driving part 410 and the sensing part 210 are in a magnetic connection, the force of the driving part 410 acting on the sensing part 210 is magnetic repulsion.

[0028] Specifically, the transmission gear 300 can be connected to the driving gear to receive the driving force from the printing device, so as to rotate relative to the edge cover 100. The transmission gear 300 and the detection gear 400 have a meshing connection state and a non-meshing connection state:

[0029] Reference Figures 1 to 3 as well as Figure 8 When the transmission gear 300 and the detection gear 400 are in a meshing connection state, the transmission gear 300 can drive the detection gear 400 to rotate when rotating, so that the driving part 410 on the detection gear 400 rotates and approaches the sensing part 210. The sensing part 210 can receive the driving force of the driving part 410 and drive the detected member 200 to slide along the first direction, so that the detected end 220 of the detected member 200 contacts the detection device of the printing device, thereby transmitting the detection signal.

[0030] Reference Figure 4 , Figure 5 as well as Fig. 9 After the detected end 220 of the detected member 200 contacts the detection device of the printing device, the transmission gear 300 and the detection gear 400 gradually disengage to a non-engaged connection state, the driving part 410 gradually moves away from the sensing part 210, and the detected member 200 can slide toward the second direction. Figures 1 to 5 As shown, the first direction is opposite to the second direction, and both the first direction and the second direction are perpendicular to the axial direction of the transmission gear 300 and the detection gear 400 .

[0031] Further, refer to Figure 8 and Fig. 9The detection gear 400 has a gear tooth portion 420 and a missing tooth portion 430. When the transmission gear 300 and the detection gear 400 are in a meshing connection state, the transmission gear 300 is meshed and connected with the gear tooth portion 420. When the transmission gear 300 and the detection gear 400 are in a non-meshing connection state, the missing tooth portion 430 is located at the side of the transmission gear 300 and is separated from the transmission gear 300. When the detected structure is in a state to be detected, the transmission gear 300 is meshed and connected with the gear tooth portion 420 of the detection gear 400. When the transmission gear 300 rotates, it can drive the detection gear 400 to rotate together. At this time, the driving part 410 acts on the sensing part 210, so that the detected member 200 slides along the first direction until the detected end 220 of the detected member 200 contacts the detection device of the printing device to complete the signal transmission. Afterwards, the transmission gear 300 continues to drive the detection gear 400 to rotate. During the rotation, the gear tooth portion 420 gradually disengages from the transmission gear 300 until the missing tooth portion 430 is located on the side of the transmission gear 300. At this time, the detection gear 400 will not be driven by the transmission gear 300, and the detected part 200 will no longer slide along the first direction.

[0032] The detected structure is provided with a driving part 410 on the detection gear 400, and a sensing part 210 on the detected member 200. In the process of the transmission gear 300 driving the detection gear 400 to rotate, the driving part 410 gradually approaches the sensing part 210 and acts on the sensing part 210, so that the sensing part 210 drives the detected member 200 to slide toward the first direction, thereby making the detected end 220 of the detected member 200 contact with the detection device of the printing device to achieve the transmission of the detection signal. Afterwards, the transmission gear 300 continues to drive the detection gear 400 to rotate. In the process of the detection gear 400 continuing to rotate, the driving part 410 gradually moves away from the sensing part 210, and the detected member 200 can move toward the second direction, thereby making the detected end 220 of the detected member 200 disengage from the detection device of the printing device, and the detection gear 400 gradually disengages from the transmission gear 300 until it is in a non-engaged connection state, and finally achieving a detection. During the detection process, the detected part 200 can move in a direction perpendicular to the axial direction of the transmission gear 300 and the detection gear 400, and the detection gear 400 can switch from a state of meshing connection with the transmission gear 300 to a state of not meshing connection during the rotation process. There is no need to move along the axial direction, nor is there a need to set up a transmission structure that moves along the axial direction. Therefore, the structure of the developing box can be simplified, the material cost, processing cost and assembly cost of the developing box can be reduced, the difficulty of processing and assembling the developing box can be reduced, and the production efficiency of the developing box can be improved.

[0033] Furthermore, the driving part 410 and the sensing part 210 may be in contact connection. When the driving part 410 rotates and approaches the sensing part 210, the driving part 410 can abut against the sensing part 210 and push the sensing part 210 along the first direction, so that the detected part 200 slides along the first direction. When the driving part 410 continues to rotate following the detection gear 400, the driving part 410 gradually disengages from the sensing part 210, thereby releasing the limit on the sensing part 210. In this structure, a spring or other structure may be installed between the sensing part 210 and the edge cover 100. When the driving part 410 contacts the limit on the sensing part 210, the spring or other structure may push the sensing part 210 along the second direction, so that the detected part 200 moves along the second direction, and the detected end 220 is separated from the detection device of the printing device.

[0034] Furthermore, the driving part 410 and the sensing part 210 may also be connected in a contactless manner. For example, the driving part 410 and the sensing part 210 are both magnetic components, and there is a distance between the driving part 410 and the sensing part 210. The force between the driving part 410 and the sensing part 210 is a magnetic repulsion force, so that the driving part 410 can push the sensing part 210 to move. Figures 1 to 5 , the end of the driving part 410 close to the rotation direction is the first end, and the end away from the rotation direction is the second end; the end of the sensing part 210 close to the first direction is the first end, and the end close to the second direction is the second end; the magnetic pole of the first end of the driving part 410 is the same as the magnetic pole of the second end of the sensing part 210, for example, both are N poles, and the magnetic pole of the second end of the driving part 410 is the same as the magnetic pole of the first end of the sensing part 210, for example, both are S poles. Figure 1 and Figure 2 As shown, when the driving part 410 gradually approaches the sensing part 210, the two N poles will generate magnetic repulsion, so that the sensing part 210 is subjected to force and drives the detected part 200 to slide along the first direction. Figure 4 and Figure 5 As shown, when the N pole of the driving part 410 gradually moves away from the sensing part 210, the S pole of the driving part 410 gradually approaches the S pole of the sensing part 210, and the two S poles also generate magnetic repulsion, so that the sensing part 210 is subjected to force and drives the detected part 200 to slide along the second direction, and the detected end 220 is separated from the detection device of the printing device. Under this structure, there is no need to set up an additional physical connection structure and transmission structure on the driving part 410 and the sensing part 210, nor is there a need to set up an additional reset structure on the sensing part 210 or the detected part 200, but the transmission is realized through the magnetic component and the magnetic force, so that the structure of the detected structure and the developing box can be further simplified.

[0035] Further, refer to Figure 7, two mounting parts 110 are provided on the side cover 100, each mounting part 110 is provided with a mounting hole 111, and the two ends of the detected part 200 can be slidably inserted into the mounting holes 111, and the sensing part 210 is located between the two mounting parts 110. The outer diameter of the sensing part 210 is larger than the inner diameter of the mounting hole 111. Therefore, when the sensing part 210 and the detected part 200 slide along the first direction together, the sensing part 210 will be stopped by the mounting part 110 after sliding a certain distance and cannot continue to slide, thereby preventing the sensing part 210 from sliding too far, not only preventing the detected end 220 from excessively contacting the detection device of the printing device, but also preventing the sensing part 210 from sliding out of the magnetic induction range of the driving part 410. After the sensing part 210 is stopped by the mounting part 110, since there is a gap between the sensing part 210 and the driving part 410, the driving part 410 can rotate over the sensing part 210 until the S pole of the driving part 410 establishes induction with the S pole of the sensing part 210, so that the sensing part 210 can move in the opposite direction. Furthermore, the side cover 100 is provided with a limiter 120 extending along the sliding direction of the detected part 200, and the detected part 200 is provided with a limiter groove 211, and the limiter groove 211 is slidably connected to the limiter 120 to limit the sliding direction of the sensing part 210 and the detected part 200, so that the sliding of the sensing part 210 and the detected part 200 is smoother.

[0036] Further, the driving part 410 protrudes along the axial direction of the detection gear 400. The entire driving part 410 can be set as a magnetic component, such as a magnet, or a magnetic component can be set at the end of the driving part 410, as long as it can achieve magnetic induction with the sensing part 210. Further, the driving part 410 is an arc-shaped block extending along the circumference of the detection gear 400, so that the formed driving part 410 does not exceed the width of the detection gear 400. Further, referring to Figures 1 to 5 as well as Figure 7 , a reset member 130 is provided on the side cover 100, and the reset member 130 extends above the detection gear 400 and can stop the driving part 410. After completing a detection, the driving part 410 will be stopped by the reset member 130. At this time, the gear part 420 of the driving part 410 can no longer be meshed and connected with the transmission gear 300, so the detection action will not be performed again. Furthermore, the reset member 130 is an elastic member. When the driving part 410 is manually moved, the reset member 130 deforms outward to give way, and the driving part 410 can pass over the reset member 130. At this time, the detection gear 400 can be reset to wait for the next detection when it is installed on the machine.

[0037] The embodiment of the utility model further provides a developing box, comprising the above-mentioned detected structure. Since the developing box adopts the above-mentioned detected structure, it at least has all the beneficial effects that the above-mentioned detected structure can bring.

[0038] The embodiment of the utility model also provides a printing device, including the above-mentioned detected structure or the above-mentioned developing box. Since the printing device adopts the above-mentioned detected structure or the above-mentioned developing box, it at least has all the beneficial effects that the above-mentioned detected structure or the above-mentioned developing box can bring.

[0039] It should be noted that in the description of the present invention, if there are any orientation descriptions, such as up, down, front, back, left, right, etc., the orientations or positional relationships indicated are all based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and cannot be understood as a limitation on the present invention.

[0040] In the description of the present utility model, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0042] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A structure to be detected, characterized in that: It comprises a side cover (100), a detected part (200), a transmission gear (300) and a detection gear (400); The detected member (200) is slidably connected to the side cover (100), and a sensing portion (210) is provided on the detected member (200); The transmission gear (300) and the detection gear (400) are both rotatably connected to the side cover (100), and the detection gear (400) is provided with a driving part (410); The transmission gear (300) and the detection gear (400) are in a meshing connection state and a non-meshing connection state; When the transmission gear (300) and the detection gear (400) are in a meshing connection state, the transmission gear (300) can drive the detection gear (400) to rotate, so that the driving part (410) on the detection gear (400) rotates and approaches the sensing part (210), and the sensing part (210) can receive the driving force of the driving part (410) and drive the detected member (200) to slide along the first direction, so that the detected end (220) of the detected member (200) contacts the detection device of the printing device; After the detected end (220) of the detected member (200) contacts the detection device of the printing device, the transmission gear (300) and the detection gear (400) gradually disengage to a non-engaged connection state, the driving part (410) gradually moves away from the sensing part (210), and the detected member (200) can slide toward the second direction; The first direction is opposite to the second direction, and both the first direction and the second direction are perpendicular to the axial direction of the transmission gear (300) and the detection gear (400).

2. The structure to be detected according to claim 1, characterized in that: The driving part (410) and the sensing part (210) are both magnetic components, and there is a distance between the driving part (410) and the sensing part (210).

3. The structure to be detected according to claim 2, characterized in that: The end of the driving part (410) close to the rotation direction is a first end, and the end away from the rotation direction is a second end; The end of the sensing portion (210) close to the first direction is the first end, and the end close to the second direction is the second end; The magnetic pole of the first end of the driving part (410) is the same as the magnetic pole of the second end of the sensing part (210), and the magnetic pole of the second end of the driving part (410) is the same as the magnetic pole of the first end of the sensing part (210).

4. The structure to be detected according to claim 1, characterized in that: The side cover (100) is provided with two mounting parts (110), and the mounting parts (110) are provided with mounting holes (111). The two ends of the detected component (200) are respectively slidably inserted into the two mounting holes (111), and the sensing part (210) is located between the two mounting parts (110), and the outer diameter of the sensing part (210) is greater than the inner diameter of the mounting hole (111).

5. The structure to be detected according to claim 1, characterized in that: The side cover (100) is provided with a limiting member (120) extending along the sliding direction of the detected member (200), and the detected member (200) is provided with a limiting groove (211), and the limiting groove (211) is slidably connected to the limiting member (120).

6. The structure to be detected according to claim 1, characterized in that: The driving portion (410) is an arc-shaped block extending along the circumference of the detection gear (400).

7. The structure to be detected according to claim 1, characterized in that: The side cover (100) is provided with a reset member (130), and the reset member (130) extends above the detection gear (400) and is capable of stopping the driving part (410).

8. The structure to be detected according to claim 1, characterized in that: The detection gear (400) has a gear tooth portion (420) and a missing tooth portion (430); when the transmission gear (300) and the detection gear (400) are in a meshing connection state, the transmission gear (300) is meshingly connected with the gear tooth portion (420); when the transmission gear (300) and the detection gear (400) are in a non-meshing connection state, the missing tooth portion (430) is located on the side of the transmission gear (300) and is separated from the transmission gear (300).

9. A developing box, characterized in that: The invention comprises a detected structure as described in any one of claims 1 to 8.

10. A printing device, characterized in that: It includes the detected structure as described in any one of claims 1 to 8 or includes the developing box as described in claim 9.