Developer storage box, developing box and processing box

Abstract

The utility model discloses a developing agent storage box, a developing box and a processing box. The developer storage box is used for being installed on a developing shell to form a developing box, and a driving assembly is arranged at one end of the developing box. The developing agent storage box comprises a box body, wherein a developing agent storage bin is arranged in the box body; the detected part is provided with a light transmitting part allowing the detection light to pass through and a light shielding part blocking the detection light from passing through; the detection transmission mechanism can be driven by the driving assembly so as to enable the detected piece to move between a position allowing the detection light to pass through and a position stopping the detection light from passing through; in the longitudinal direction of the box body, the detected piece and the driving assembly are arranged in a spaced mode. According to the utility model, the detected piece and the driving assembly are arranged at intervals in the longitudinal direction of the box body, so that the number of parts at the end part of the driving assembly can be reduced, the design space at the end part of the driving assembly can be increased, and the space management and design flexibility of the end part can be optimized.

Description

Technical Field

[0001] The utility model relates to the field of electronic photographic imaging equipment; more specifically, it relates to a developer storage box, a developing box and a processing box used in the electronic photographic imaging equipment. Background Art

[0002] The developing box can be installed to the main component of the electronic photographic imaging device alone or together with the photosensitive drum box with the photosensitive drum to form a processing box. Such electronic photographic imaging devices can be, for example, laser printers, copiers, fax machines, etc. During the imaging operation, an electrostatic latent image is formed on the photosensitive drum, and the developing roller of the developing box can supply developer to the photosensitive drum to develop the electrostatic latent image on the photosensitive drum. Among them, the developing housing of the developing box can be provided with a developer storage box, which is used to replenish the developer in the developing chamber in the developing housing.

[0003] Some electronic photographic imaging devices in the prior art are provided with a photoelectric sensor of the opposite type, and a detection light path is formed between the transmitting end and the receiving end of the photoelectric sensor. Accordingly, the driving end (the end provided with the driving assembly) of the developing box is provided with a detected part installed on the developer storage box. After the developing box or the processing box including the developing box is installed, the detected part can move between a position allowing the detection light to pass through and a position blocking the detection light from passing through, so as to change the detection signal of the photoelectric sensor, so that the electronic photographic imaging device can read the relevant information of the developing box or the processing box (such as the model / specification, newness and / or printable amount of the box, etc.).

[0004] However, since the area of ​​the developer storage box at the driving end is relatively small, when the detected component and the driving assembly are both arranged at this end, the parts layout design of this end will be restricted and difficult, and needs to be improved. Utility Model Content

[0005] In view of the deficiencies of the prior art, the first aspect of the present application discloses a developer storage box, in which the position of the detected member is adjusted to optimize the space management and design freedom of the driving end.

[0006] The developer storage box disclosed in the first aspect of the present application is used to be mounted on a developer housing provided with a developer roller to form a developer box, and one end of the developer box is provided with a driving assembly for receiving an external rotational driving force; the developer storage box comprises:

[0007] A box body, in which a developer storage bin is provided;

[0008] The detected part has a light-transmitting portion that allows the detection light to pass through and a light-shielding portion that blocks the detection light from passing through; wherein, in the longitudinal direction of the box body, the detected part is spaced apart from the driving assembly;

[0009] The detection transmission mechanism is connected to the detected object; the detection transmission mechanism can be driven by the driving assembly to enable the detected object to move between a position allowing the detection light to pass through and a position blocking the detection light from passing through.

[0010] In some embodiments, the detected member is rotatably disposed at an end of the developer storage box relative to the driving assembly.

[0011] In some embodiments, the detected member is rotatably disposed between two longitudinal side walls of the developer storage bin.

[0012] Furthermore, a protective cover is provided at the end of the developer storage box, and the protective cover at least partially covers the driving assembly in the longitudinal direction of the box body; observed along the longitudinal direction of the box body, the detection light path is arranged outside the longitudinal side wall of the developer storage bin and the outer contour of the protective cover.

[0013] Furthermore, a second stirring member connected to the driving assembly is provided in the developer storage bin, and the detection transmission mechanism includes a first detection transmission member connected to the second stirring member and a second detection transmission member connected to the detected member, and a transmission fit is formed between the first detection transmission member and the second detection transmission member.

[0014] Further, a gear transmission fit, a friction wheel transmission fit, a groove wheel transmission fit, a belt transmission fit or a chain transmission fit is formed between the first detection transmission member and the second detection transmission member.

[0015] In some embodiments, a gear transmission is formed between the first detection transmission member and the second detection transmission member, and the second detection transmission member is an incomplete gear with a missing tooth portion.

[0016] Further, the developer storage box further comprises a storage box handle disposed on the box body, and the storage box handle is disposed along the longitudinal direction of the box body in one of the following ways:

[0017] 1) Ribs are provided at both ends of the storage box handle, and through holes or notches are provided on the ribs to allow the detection light to pass through;

[0018] 2) Ribs are provided at both ends of the storage box handle, and the storage box handle is arranged at a position where the ribs do not affect the passage of the detection light;

[0019] 3) No ribs for blocking the detection light are provided at both ends of the storage box handle;

[0020] 4) Ribs are provided at both ends of the storage box handle, and the ribs or the storage box handle as a whole are made of a light-transmitting material that allows the detection light to pass through.

[0021] Preferably, the rotation axis of the detected component is parallel to the longitudinal direction of the box body.

[0022] In some embodiments, the detected component includes a light shielding plate, and the light shielding plate is provided with a notch or a light-transmitting hole that allows the detection light to pass through.

[0023] The second aspect of the present application discloses a developing box, comprising a developing roller, a developing shell and any one of the developer storage boxes as described above, wherein a developing chamber is provided in the developing shell; the developer storage box is mounted on the developing shell, and is used to supply developer to the developing chamber; wherein the developing chamber comprises a first stirring member and a powder scraping member arranged along the axial direction of the developing roller, the first stirring member comprises a flexible stirring blade which can contact the powder scraping member during rotation, and a gap is provided between the powder scraping member and the inner wall of the developing chamber in the radial direction of the developing roller.

[0024] Furthermore, the powder scraping member includes a shaft body and ribs protruding from a surface of the shaft body.

[0025] Furthermore, the developing housing is provided with an exhaust hole communicated with the developing chamber and an air-permeable seal for sealing the exhaust hole.

[0026] Furthermore, the developing housing has a shielding portion that covers the exhaust hole.

[0027] A third aspect of the present application discloses a process cartridge comprising a photosensitive drum cartridge and any one of the developing cartridges described above, wherein the photosensitive drum cartridge has a photosensitive frame and a photosensitive drum rotatably supported on the photosensitive frame, and the developing cartridge is removably mounted on the photosensitive frame.

[0028] The technical solution of the utility model has the following beneficial effects:

[0029] In the utility model, the detected part and the driving assembly are arranged at intervals in the axial direction of the box body of the developer storage box, which can reduce the number of parts at the end where the driving assembly is located, increase the design space at the end where the driving assembly is located, and optimize the space management and design flexibility of the end. In the present disclosure, the longitudinal direction of the box body is parallel to the axial direction of the developing roller.

[0030] In order to more clearly illustrate the purpose, technical solutions and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the processing box;

[0032] Figure 2 is a schematic diagram of the overall structure of the developing cartridge in Embodiment 1;

[0033] Figure 3 is a schematic cross-sectional view of the developing cartridge in Embodiment 1 in a direction perpendicular to the axial direction of the developing roller;

[0034] Figure 4 is a schematic structural diagram of a developer storage box in Embodiment 1;

[0035] Figure 5 is a first structural schematic diagram of the developing housing portion in Embodiment 1;

[0036] Figure 6 is a second structural schematic diagram of the developing housing portion in Embodiment 1;

[0037] Figure 7 is a schematic diagram of the structure of the driving component part in Example 1;

[0038] Figure 8 is a schematic structural diagram of the detected component and the detection transmission mechanism in Example 1;

[0039] Fig. 9 is a schematic diagram of the structure of the detected component in Example 1 in a state where the detected light path is allowed to be detected;

[0040] Fig.10 is a schematic diagram of the structure in the state where the detection light is blocked by the detection component in Example 1;

[0041] Fig.11 is a schematic diagram of the overall structure of the developing cartridge in Embodiment 2;

[0042] Fig.12 is a schematic structural diagram of the detected component and the detection transmission mechanism in Example 2;

[0043] Fig.13 is a schematic diagram of the overall structure of the developing cartridge in Embodiment 3;

[0044] Fig.14 is a schematic diagram of the overall structure of the developing cartridge in Embodiment 4;

[0045] Fig.15 It is a schematic diagram of the overall structure of the developing box in Example 5. DETAILED DESCRIPTION

[0046] In the following description, many specific details are explained in combination with the embodiments to facilitate a full understanding of the present invention, but it should be understood that the following embodiments and detailed descriptions are only for illustrative purposes and do not limit the scope of protection of the present invention.

[0047] Processing box structure

[0048] like Figure 1As shown, the process cartridge of the embodiment includes a developing cartridge 10 and a photosensitive drum cartridge 20. The photosensitive drum cartridge 20 includes a photosensitive drum 21 and a photosensitive frame 22, wherein the photosensitive drum 21 is rotatably supported on the photosensitive frame 22; the developing cartridge 10 is removably mounted on the photosensitive frame 22 and has a developing roller 11 for supplying developer to the photosensitive drum 21.

[0049] Structure of the developer cartridge

[0050] like Figure 2-Figure 3 As shown, the developing box 10 of Embodiment 1 includes a developing housing 12 and a developer storage box 13, the developing roller 11 is rotatably supported on the developing housing 12, and the developer storage box 13 is mounted on the developing housing 12. The developing roller 11 and the developer storage box 13 can be arranged on opposite sides of the developing housing 12. Preferably, the developer storage box 13 is detachably mounted on the developing housing 12.

[0051] like Figure 3 As shown, a developing chamber 121 is formed inside the developing housing 12, and a first stirring member 122 and a powder feeding roller 123 are provided inside the developing chamber 121, both of which are arranged along the axial direction of the developing roller 11. The first stirring member 122 can stir the developer in the developing chamber 121, and the powder feeding roller 123 can contact the developing roller 11 to cause the developer to adhere to the surface of the developing roller 11.

[0052] The first stirring member 122 includes a stirring blade 1221, which is a flexible stirring blade. A powder scraping member 124 arranged along the axial direction of the developing roller 11 may be provided in the developing chamber 121, and the powder scraping member 124 may contact the stirring blade 1221 to scrape off the developer attached to the surface of the stirring blade 1221. Preferably, there is a gap between the powder scraping member 124 and the inner wall of the developing chamber 121 in the radial direction of the developing roller 11, so that the powder scraping member 124 is closer to the rotation center of the stirring blade 1221, thereby increasing its powder scraping range.

[0053] When the first stirring member 122 stirs and rotates, the stirring blade 1221 periodically contacts the scraping member 124, and the developer attached to the surface can be scraped off by the scraping member 124. In a specific embodiment, the scraping member 124 includes a shaft 1241 and ribs 1242 protruding from the surface of the shaft 1241, and the ribs 1242 can improve the scraping effect of the developer. Figure 3 As shown, the rib 1242 is provided to protrude from one side of the shaft 1241 close to the rotation center of the stirring blade 1221 .

[0054] The developer storage box 13 is used to supply developer to the developing chamber 121. In the first embodiment, Figure 3As shown, a developer storage chamber 131 is formed in the box body 130 of the developer storage box 13 , and a second stirring member 133 and a powder feeding screw 132 are provided in the developer storage chamber 131 .

[0055] Specifically, the developer storage bin 131 includes a first storage space 1311 and a second storage space 1312 which are interconnected. The first storage space 1311 and the second storage space 1312 may both be substantially cylindrical structures; wherein the first storage space 1311 has a larger volume than the second storage space 1312. The second stirring member 133 is disposed in the first storage space 1311 for stirring the developer; and the powder feeding screw 132 is disposed in the second storage space 1312 for discharging the developer.

[0056] Combination Figure 3 and Figure 4 As shown, a storage box handle 135 is provided on one side of the box body 130 relative to the second storage space 1312. The storage box handle 135 is arranged along the longitudinal direction of the box body 130. Ribs 1351 may be provided at both ends of the storage box handle 135. In the embodiment, the longitudinal direction of the box body 130 is parallel to the axial direction of the developing roller 11.

[0057] like Figure 4 As shown, a cylindrical shutter 134 is provided at one end of the developer storage box 13 relative to the driving assembly 14, and the shutter 134 is rotatably connected to the box body 130. Specifically, the shutter 134 can be arranged at the end of the second storage space 1312, and has a first opening 1341 connected to the second storage space 1312. The shutter 134 is rotatably arranged relative to the box body 130 to open / close the first opening 1341. The powder feeding screw 132 can convey the developer toward the first opening 1341, so that the developer is discharged from the first opening 1341.

[0058] like Figure 5 As shown, a second opening 120 is provided on the developing housing 12 . When the shutter 134 rotates to the point where the first opening 1341 faces the second opening 120 , the first opening 1341 is in an open state, and the developer in the developer storage bin 131 can enter the developing bin 121 under the action of the powder feeding screw 132 .

[0059] External air easily enters the developing chamber 121 as the developing roller 11 rotates, so that the air pressure in the developing chamber 121 increases. Figure 6In the illustrated embodiment 1, the developing housing 12 may be provided with an exhaust hole 125 communicating with the developing chamber 121, and the exhaust hole 125 may be sealed by an air-permeable seal 126 such as a sponge or an air-permeable film. In the embodiment, the provision of the exhaust hole 125 can balance the air pressure inside and outside the developing chamber 121, and prevent the developer in the developer storage chamber 131 from entering the developing chamber 121 due to excessive air pressure inside the developing chamber 121.

[0060] The exhaust hole 125 can be set at a position close to the end of the developer housing 12, or at other positions on the developer housing 12, and the present application does not limit this. When the developer in the developer storage bin 131 is supplied to the developer bin 121, a large powder supply pressure will be generated inside the shutter 134. The exhaust hole 125 is set on the developer housing 12, and the air-permeable seal 126 is not affected by the powder supply pressure inside the shutter 134, so that the air-permeable seal 126 can be prevented from being broken by the powder supply pressure. In contrast, if the exhaust hole 125 is set on the shutter 134, the air-permeable seal 126 will be easily broken by the powder supply pressure and cause powder leakage.

[0061] Furthermore, the developing housing 12 may be provided with a shielding portion 127 that covers the exhaust hole 125 , and the shielding portion 127 may protect the air-permeable seal 126 , thereby preventing the air-permeable seal 126 from being damaged due to contact with external objects.

[0062] like Figure 2 and Figure 7 As shown, a driving assembly 14 is provided at one end of the developing box 10, and the driving assembly 14 can receive an external rotational driving force from the main assembly of the electronic photographic imaging device, thereby driving the developing roller 11, the powder feeding roller 123, the first stirring member 122, the second stirring member 133 and the powder feeding screw 132 to rotate.

[0063] In Example 1, the driving component 14 includes a driving gear 141 for receiving a rotational driving force, a developing roller gear 142, a powder feeding roller gear 143, a first stirring member gear 145, a powder feeding screw gear 147, a second stirring member gear 149, a first intermediate gear 144, a second intermediate gear 146 and a third intermediate gear 148, and the driving gear 141 is meshed with the developing roller gear 142, the powder feeding roller gear 143 and the first intermediate gear 144, and the first intermediate gear 144, the first stirring member gear 145, the second intermediate gear 146, the powder feeding screw gear 147, the third intermediate gear 148 and the second stirring member gear 149 are meshed in sequence.

[0064] Furthermore, if Figure 2As shown, a first protective cover 151 is provided at the end of the developing housing 12, and a second protective cover 152 is provided at the end of the developer storage box 13, and the first protective cover 151 and the second protective cover 152 at least partially cover the driving assembly 14 in the axial direction of the developing roller 11. As a variation, the first protective cover 151 and the second protective cover 152 may have an integrally formed structure.

[0065] Detection structure of developer box

[0066] like Figure 4 As shown, the developer box 10 is provided with a detected member 16, which is spaced apart from the driving assembly 14 in the longitudinal direction of the box body 130 (that is, the axial direction of the developing roller 11), and has a light-transmitting portion that allows the detection light to pass through and a light-shielding portion that blocks the detection light from passing through. The detected member 16 can move between a position that allows the detection light to pass through and a position that blocks the detection light from passing through. In an embodiment, the detected member 16 is rotatably arranged, and can be specifically arranged on the developer storage box 13. Preferably, the rotation axis of the detected member 16 is parallel to the rotation axis of the developing roller 11, that is, parallel to the longitudinal direction of the box body 130.

[0067] like Figure 8 As shown, the detected part 16 includes a shading plate 161 as an example of a shading portion, and the shading plate 161 is provided with a light-transmitting hole or a notch portion 162 as an example of a light-transmitting portion and allowing the detection light to pass through. The shading plate 161 can be vertically or obliquely arranged relative to the rotation axis of the detected part 16, and it is preferably arranged vertically. The number of light-transmitting holes or notches 162 can be one or more, and the present application does not impose any restrictions on this. Multiple light-transmitting holes or notches 162 can be arranged at intervals in the rotation direction of the detected part 16, and when the detected part 16 rotates, the on-off state of the detection light can change multiple times.

[0068] In some embodiments of the present application, Figure 4 In the embodiment 1 shown, the detected member 16 is rotatably disposed at the end of the developer storage box 13 relative to the driving assembly 14. Fig. 9 As shown, when the detected member 16 is rotated to the point where the light-transmitting hole or the notch 162 is located on the detection light path L, the detected member 16 allows the detection light to pass through; Fig.10 As shown, when the shading plate 161 is located on the detection light path L, the detection element 16 blocks the detection light from passing through.

[0069] Furthermore, the detected member 16 is connected to a detection transmission mechanism 17 , and the detection transmission mechanism 17 can be driven by the driving assembly 14 to enable the detected member 16 to move between a position allowing the detection light to pass through and a position preventing the detection light from passing through.

[0070] like Figure 8As shown, in Example 1, the detection transmission mechanism 17 includes a first detection transmission member 171 and a second detection transmission member 172, the first detection transmission member 171 is connected to the second stirring member 133, the second detection transmission member 172 is connected to the detected member 16, and a transmission fit is formed between the first detection transmission member 171 and the second detection transmission member 172. Preferably, the first detection transmission member 171 can be installed on the rotating shaft 1331 of the second stirring member 133, and rotate with the second stirring member 133; the detected member 16 and the second detection transmission member 172 have an integrally formed connection structure, and rotate with the second detection transmission member 172. As a variation, the detected member 16 can also be assembled and connected to the second detection transmission member 172 (for example, adhesively connected, connected by screws or snap-fits), and the present application does not specifically limit the connection method between the two.

[0071] In Embodiment 1, a gear transmission is formed between the first detection transmission member 171 and the second detection transmission member 172. As a variation, a friction wheel transmission, a groove wheel transmission, a belt transmission, or a chain transmission can be formed between the first detection transmission member 171 and the second detection transmission member 172, as long as the first detection transmission member 171 can drive the second detection transmission member 172 to rotate.

[0072] Furthermore, a clutch mechanism is provided between the first detection transmission member 171 and the second detection transmission member 172. After the detection of the developing cartridge is completed, the clutch mechanism cuts off the power transmission between the first detection transmission member 171 and the second detection transmission member 172, so that the detected member 16 no longer moves. In Embodiment 1, the second detection transmission member 172 is an incomplete gear having a toothless portion 1721. When the detection of the developing cartridge is completed, the second detection transmission member 172 rotates until the toothless portion 1721 faces the first detection transmission member 171, so that the second detection transmission member 172 is disengaged from the first detection transmission member 171, and the second detection transmission member 172 and the detected member 16 no longer rotate.

[0073] In some embodiments of the present application, Fig.11 In the illustrated embodiment 2, the detected member 16 is rotatably disposed between the first longitudinal side wall 1361 and the second longitudinal side wall 1362 of the developer storage bin 131 .

[0074] Specifically, a recessed portion 138 is provided between the first longitudinal side wall 1361 and the second longitudinal side wall 1362. The recessed portion 138 is used to provide an installation space for the detection transmission mechanism 17 and the detected member 16. The second detection transmission member 172 and the detected member 16 are rotatably arranged on the side wall of the recessed portion 138 (see Fig.11 ). Correspondingly, Fig.12As shown, the second stirring member 133 includes a first stirring portion 133a, a second stirring portion 133b and a transmission shaft 1332. The rotating shaft 1331 of the first stirring portion 133a and the second stirring portion 133b are connected by the transmission shaft 1332. The first detection transmission member 171 is arranged on the transmission shaft 1332 or the rotating shaft 1331.

[0075] In the present application, the detected component 16 is spaced apart from the driving assembly 14 in the axial direction of the developing roller 11 / longitudinal direction of the box body 130. For example, the detected component 16 is arranged at the end of the developer storage box 13 relative to the driving assembly 14 or between the first longitudinal side wall 1361 and the second longitudinal side wall 1362. This can reduce the number of parts at the end where the driving assembly 14 is located and optimize the space management and design flexibility of the end.

[0076] In addition to the detected part 16, the developing box 10 no longer has other parts that block the detection light from passing through. In some embodiments of the present application, such as Fig. 9 As shown, the second protective cover 152 is provided with a first through hole 1521 that allows the detection light to pass through; Figure 4 As shown, a second through hole 1363 for allowing detection light to pass through is provided on the first longitudinal side wall 1361 of the box body 130, and through holes or notches 1352 for allowing detection light to pass through are provided on the ribs 1351 at both ends of the storage box handle 135.

[0077] In some embodiments of the present application, Fig.13 In the embodiment 3 shown, when observed along the axial direction of the developing roller 11 / the longitudinal direction of the box body 130, the detection light path L is arranged outside the outer contour range of the first longitudinal side wall 1361, the second longitudinal side wall 1362 and the second protective cover 152 of the developer storage bin 131. In other words, the second protective cover 152 and the first longitudinal side wall 1361 may not be arranged on the detection light path, and in this case, there is no need to arrange the first through hole 1521 and the second through hole 1363. In this case, the size of the second protective cover 152 and the first longitudinal side wall 1361 can be made smaller, reducing the occupied space of the end of the developer storage box 13 and promoting the miniaturization of the developer box.

[0078] In some embodiments of the present application, Fig.14 In the illustrated embodiment 4, the storage box handle 135 can be disposed at a position where its rib plate 1351 does not affect the passage of the detection light.

[0079] In some embodiments of the present application, Fig.15 In the fifth embodiment shown, the ribs 1351 are no longer provided at both ends of the storage box handle 135 to avoid blocking the detection light.

[0080] In some embodiments of the present application, the ribs 1351 at both ends of the storage box handle 135 or the storage box handle 135 as a whole may be made of a light-transmitting material that allows the detection light to pass through, so as to avoid blocking the detection light.

[0081] It should be noted that, unless there are any contradictions or exclusions, the different embodiments disclosed above may be quoted, referenced or combined with each other, and the technical features / components of different embodiments may also be combined and / or replaced with each other.

[0082] Although the present invention is described above through embodiments, it should be understood that the above embodiments are only used to exemplarily describe the feasible implementation methods of the present invention, and should not be interpreted as limiting the scope of protection of the present invention. That is, any replacement or change made by those skilled in the art in accordance with the present invention should also be covered by the scope of protection of the claims of the present invention.

Claims

1. A developer storage box, used to be mounted on a developer housing provided with a developer roller to form a developer box, one end of the developer box is provided with a drive assembly for receiving an external rotational driving force; the developer storage box comprises: A box body, in which a developer storage bin is provided; Features: The detected part has a light-transmitting portion that allows the detection light to pass through and a light-shielding portion that blocks the detection light from passing through; wherein, in the longitudinal direction of the box body, the detected part is spaced apart from the driving assembly; The detection transmission mechanism is connected to the detected object; the detection transmission mechanism can be driven by the driving assembly to enable the detected object to move between a position allowing the detection light to pass through and a position blocking the detection light from passing through.

2. The developer storage box according to claim 1, characterized in that: The detected member may be rotatably disposed at an end of the developer storage box relative to the driving assembly; or, the detected member may be rotatably disposed between two longitudinal side walls of the developer storage bin.

3. The developer storage box according to claim 1, characterized in that: A protective cover is provided at an end of the developer storage box, and the protective cover at least partially covers the driving assembly in the longitudinal direction of the box body; When viewed in the longitudinal direction of the box body, the detection light path is arranged outside the outer contour range of the longitudinal side wall of the developer storage bin and the protective cover.

4. The developer storage box according to claim 1, characterized in that: A second stirring member connected to the driving assembly is provided in the developer storage bin, and the detection transmission mechanism includes a first detection transmission member connected to the second stirring member and a second detection transmission member connected to the detected member, and a transmission fit is formed between the first detection transmission member and the second detection transmission member.

5. The developer storage box according to claim 4, characterized in that: A gear transmission is formed between the first detection transmission member and the second detection transmission member, and the second detection transmission member is an incomplete gear with a missing tooth portion.

6. The developer storage box according to claim 1, characterized in that: The developer storage box further comprises a storage box handle disposed on the box body, wherein the storage box handle is disposed along the longitudinal direction of the box body in one of the following ways: 1) Ribs are provided at both ends of the storage box handle, and through holes or notches are provided on the ribs to allow the detection light to pass through; 2) Ribs are provided at both ends of the storage box handle, and the storage box handle is arranged at a position where the ribs do not affect the passage of the detection light; 3) No ribs for blocking the detection light are provided at both ends of the storage box handle; 4) Ribs are provided at both ends of the storage box handle, and the ribs or the storage box handle as a whole are made of a light-transmitting material that allows the detection light to pass through.

7. The developer storage box according to claim 1, characterized in that: The rotation axis of the detected part is parallel to the longitudinal direction of the box body; the detected part includes a light shielding plate, and the light shielding plate is provided with a notch or a light-transmitting hole allowing the detection light to pass through.

8. A developing box, comprising a developing roller and a developing shell, wherein a developing chamber is provided in the developing shell; characterized in that: The developer storage box as described in any one of claims 1 to 7 is installed on the developer shell and is used to supply developer to the developer chamber; wherein, the developer chamber has a first stirring member and a powder scraper member arranged along the axial direction of the developer roller, the first stirring member has a flexible stirring blade that can contact the powder scraper member during its rotation, and there is a gap between the powder scraper member and the inner wall of the developer chamber in the radial direction of the developer roller.

9. The developing cartridge according to claim 8, characterized in that: The developing housing is provided with an exhaust hole communicated with the developing chamber and an air-permeable seal for sealing the exhaust hole.

10. A process cartridge, characterized in that: The process cartridge includes a photosensitive drum cartridge having a photosensitive frame and a photosensitive drum rotatably supported on the photosensitive frame, and a developing cartridge according to claim 8 or 9, the developing cartridge being removably mounted on the photosensitive frame.

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