Developing box

Abstract

The utility model discloses a developing box. The developing box comprises a rotatable developing roller; the box body is constructed to support the developing roller, and the box body is provided with a driving end cover and a conductive end cover which are arranged at the two ends in the axial direction of the developing roller; one part of the doctor blade is in contact with the developing roller to control the thickness of the developing agent on the developing roller; the electrode is arranged on the conductive end cover and connected with the doctor blade and the developing roller, and the electrode is provided with an electrode contact so as to supply voltage to the doctor blade and the developing roller; the chip is arranged on the conductive end cover, and the chip is provided with a chip contact electrically connected with the imaging equipment; the positioning structure is used for positioning the developing box and the imaging equipment; when observed on a projection plane orthogonal to the axis of the developing roller, a connecting line of the axis of the developing roller, the chip contact and the positioning structure forms an imaginary area, and the electrode contact is arranged outside the imaginary area. According to the scheme, the stable connection between the electrode contact and the drum frame electrode can be ensured, and the stability of electric contact and transmission is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of imaging equipment, especially to a developing box. BACKGROUND

[0002] There is a developing box in the prior art, the developing box end cover is provided with a plurality of electrodes for electrical connection with an imaging device (such as a printer), and the instability of electrical connection between the imaging device and the developing box is increased. The developing box in the above patent is a double-electrode structure, the developing box end cover is provided with two electrode contacts, and the powder outlet knife and the developing roller are respectively conductive with different electrodes. If the developing box shakes during the developing (printing) process, the electrical connection of one of the two electrodes for power supply may be disconnected, resulting in abnormal quality of the manuscript. SUMMARY

[0003] According to an aspect of the utility model, a developing box is provided, which is detachably installed in an imaging device including a drum assembly, and the developing box includes:

[0004] A rotatable developing roller;

[0005] A box body configured to support the developing roller, the box body having a driving end cover and a conductive end cover provided at two ends in the axial direction of the developing roller;

[0006] A powder outlet knife mounted on the box body, a portion of the powder outlet knife being in contact with the developing roller to control the thickness of the developing agent on the developing roller;

[0007] An electrode provided on the conductive end cover, the electrode having an electrode contact exposed outside the conductive end cover, the electrode contact being electrically connected with the imaging device to directly or indirectly supply voltage to the powder outlet knife and the developing roller;

[0008] A chip provided on the conductive end cover, the chip having a chip contact electrically connected with the imaging device;

[0009] A positioning structure for positioning the developing box and the imaging device;

[0010] When viewed on a projection plane orthogonal to the axis of the developing roller, the axis of the developing roller, the chip contact, and the connecting line of the positioning structure form an imaginary area, and the electrode contact is provided outside the imaginary area.

[0011] In some embodiments, the electrode contact is provided protruding from the outer side wall of the conductive end cover.

[0012] In some embodiments, in the axial direction of the developing roller, the electrode contact is farther away from the driving end cover than the outer side wall of the conductive end cover.

[0013] In some embodiments, the electrode contact protrudes upward from the upper sidewall of the conductive end cap.

[0014] In some embodiments, a drum frame electrode is provided on the drum assembly, and the electrode contact is electrically connected to the drum frame electrode.

[0015] In some embodiments, the positioning structure is at least partially located below the line connecting the electrode contact and the chip contact.

[0016] In some embodiments, the line connecting the electrode contact and the chip contact divides the developing cartridge into a first region and a second region, the developing roller is located in the first region, the positioning structure is at least partially located in the second region, and there is no other electrode contact in the second region.

[0017] In some embodiments, the electrode includes a first contact portion and a second contact portion, the first contact portion is in contact with the developing roller, and the second contact portion is in contact with the powder outlet blade.

[0018] In some embodiments, the second contact portion is closer to the developing roller than the electrode contact.

[0019] In some embodiments, the first contact portion is located on the front side of the second contact portion.

[0020] In some embodiments, a voltage stabilizing module structure is further provided on the conductive end cap, and the electrode is electrically connected to the developing roller and / or the powder outlet blade through the voltage stabilizing module structure.

[0021] In some embodiments, the voltage stabilizing module structure is connected between the electrode contact and the developing roller or between the electrode contact and the powder outlet blade.

[0022] In some embodiments, the voltage stabilizing module structure is located near a portion of the positioning structure when viewed along the axis of the developing roller.

[0023] In some embodiments, the electrode includes a clamping structure for clamping with the conductive end cap to be mounted on the conductive end cap.

[0024] In some embodiments, the positioning structure includes a first positioning column and a second positioning column, and the first positioning column is closer to the developing roller than the second positioning column.

[0025] In some embodiments, the imaginary region is formed by the line connecting the axis of the developing roller, the chip contact, and the second positioning column.

[0026] In some embodiments, the positioning structure includes an auxiliary positioning structure, and the auxiliary positioning structure is farther away from the developing roller than the second positioning column.

[0027] In some embodiments, the imaginary region is formed by a connection line of an axis of the developing roller, a chip contact, the second positioning column and the auxiliary positioning structure.

[0028] In some embodiments, the positioning structure comprises a baffle positioning structure which is in abutment with the imaging device or the drum assembly to position the developing cartridge.

[0029] In some embodiments, the baffle positioning structure is arranged at an upper end of the conductive end cover.

[0030] In some embodiments, a side of the baffle positioning structure in abutment with the drum assembly is arranged as an inclined surface.

[0031] The single-electrode power supply developing cartridge has the advantages that: the electrode is in contact with the drum frame electrode to receive voltage, and the electrode contact is located outside an imaginary region formed by a connection line of an axis of the developing roller, a chip contact and a positioning structure, so that stable connection of the electrode contact and the drum frame electrode can be ensured, the stability of electrical contact and transmission is improved, and the technical problem of printing defects caused by unstable electrode contact in the printing process is solved. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 Structure schematic view for installing the developing cartridge into the imaging device;

[0033] Figure 2 Structure schematic view for one angle of the developing cartridge of the embodiment one of the utility model;

[0034] Figure 3 Structure schematic view for another angle of the developing cartridge of the embodiment one of the utility model;

[0035] Figure 4 Sectional view for connecting the developing cartridge and the drum assembly of the embodiment one of the utility model;

[0036] Figure 5 Schematic view for connecting the developing cartridge and the drum assembly of the embodiment one of the utility model;

[0037] Figure 6 Structure schematic view for Figure 5 Enlarged structure schematic view for A in the middle;

[0038] Figure 7 Structure schematic view for the electrode of the developing cartridge of the embodiment one of the utility model;

[0039] Figure 8 Schematic view for connecting the conductive end cover and the electrode of the embodiment one of the utility model;

[0040] Figure 9Front view of the conductive end of the developing box of the embodiment one of the utility model;

[0041] Figure 10 Front view of the conductive end of the developing box of the embodiment two of the utility model;

[0042] Figure 11 Structure schematic view of the developing box of the embodiment three of the utility model;

[0043] Figure 12 Structure schematic view of the conductive end cover and electrode of the embodiment three of the utility model;

[0044] Figure 13 Side surface schematic view of the conductive end of the developing box of the embodiment three of the utility model;

[0045] Figure 14 Local structure schematic view of the driving end of the developing box of the embodiment three of the utility model;

[0046] Figure 15 Local structure schematic view of the conductive end of the developing box of the embodiment four of the utility model;

[0047] Figure 16 Local structure schematic view of the driving end of the developing box of the embodiment four of the utility model;

[0048] Figure 17 Local structure schematic view of the driving end of the developing box of the embodiment five of the utility model;

[0049] Figure 18 Whole structure schematic view of the developing box of the embodiment six of the utility model;

[0050] Figure 19 Exploded view of the developing box of the embodiment six of the utility model;

[0051] Figure 20 Structure schematic view of the electrode of the embodiment six of the utility model;

[0052] Figure 21 Structure schematic view of the conductive end cover of the embodiment six of the utility model;

[0053] Figure 22 Structure schematic view of the electrode and voltage stabilizing module structure of the embodiment six of the utility model are installed on the conductive end cover;

[0054] Figure 23 Structure schematic view of the electrode and voltage stabilizing module structure in the box body of the embodiment six of the utility model are connected;

[0055] Figure 24 Structure schematic view of the conductive end cover of the embodiment seven of the utility model;

[0056] Figure 25 Figure 7 is a structural schematic view of the electrode and the voltage stabilizing module structure mounted on the conductive end cover in the seventh embodiment of the present application;

[0057] Figure 26 Figure 8 is a structural schematic view of the developing box in the eighth embodiment of the present application;

[0058] Figure 27 Figure 8 is a structural schematic view of the developing box in the eighth embodiment of the present application;

[0059] Figure 28 Figure 8 is a structural schematic view of the developing box in the eighth embodiment of the present application;

[0060] Figure 29 Figure 8 is a structural schematic view of the developing box in the eighth embodiment of the present application;

[0061] Figure 30 Figure 9 is a structural schematic view of the developing box in the ninth embodiment of the present application;

[0062] Figure 31 Figure 9 is a structural schematic view of the developing box in the ninth embodiment of the present application;

[0063] Figure 32 Figure 9 is a structural schematic view of the developing box in the ninth embodiment of the present application. DETAILED DESCRIPTION

[0064] The application will be described in further detail below with reference to the drawings. It is apparent that the described embodiments are only a part of the embodiments of the application, and not all the embodiments. Based on the embodiments in the application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0065] It should be noted that the terms "first", "second", and the like are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0066] In the utility model, unless another definite provision and limitation, the term " install ", " connect ", " fix " and so on term should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or become an integral whole, can be mechanical connection, also can be electric connection or each other can communicate, can be direct connection, also can indirectly connect through the intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation. For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0067] In the utility model, unless another definite provision and limitation, the first feature is " on " or " under " the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature " above ", " above " and " above " the second feature can be directly above or obliquely above the first feature, or just indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature " below ", " below " and " below " the second feature can be directly below or obliquely below the first feature, or just indicate that the horizontal height of the first feature is less than that of the second feature.

[0068] In the above description, the description of the terms " one embodiment ", " some embodiments ", " example ", " specific example " or " some examples " means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0069] The following description of the orientation is specified as follows:

[0070] A1 and A2 directions are the first direction, the direction indicated by A1 is the positive direction of the first direction, and the direction indicated by A2 is the negative direction of the first direction.

[0071] B1 and B2 directions are the second direction, the direction indicated by B1 is the positive direction of the second direction, and the direction indicated by B2 is the negative direction of the second direction.

[0072] C1 and C2 directions are the third direction, the direction indicated by C1 is the positive direction of the third direction, and the direction indicated by C2 is the negative direction of the third direction.

[0073] The first direction, the second direction and the third direction intersect each other.

[0074] As shown in Figure 1 The present embodiment provides a developing cartridge 100, which is detachably installed in an image forming apparatus (not shown), which can be an electronic copying machine, an electronic photographic printer (e.g., a laser beam printer, an LED printer, etc.), a facsimile machine, a word processor, etc., and which has a main frame in which a drum assembly 200 is installed, the main frame having side plates 300 at both ends thereof in the axial direction (A1 and A2 directions) of a photosensitive drum 220, the inner sides of the side plates 300 being provided with first guide rails 310 inclined with respect to the second and third directions, the drum assembly 200 being capable of being installed in the main frame along the first guide rails 310. The inner sides of the side plates 300 are also provided with second guide rails 311 inclined with respect to the second and third directions, the developing cartridge 100 being capable of being installed in the main frame along the second guide rails 311. When installed, the drum assembly 200 is first installed in the image forming apparatus along the first guide rails 310, and then the developing cartridge 100 is installed in the image forming apparatus along the second guide rails 311, whereby the drum assembly 200 can be correctly installed in the main frame, and the developing cartridge 100 is correctly installed in the main frame and connected to the drum assembly 200.

[0075] As shown in Figures 4-5 The drum assembly 200 includes a drum frame 210, the photosensitive drum 220, a charging roller 240, and a drum stand electrode 230, the photosensitive drum 220 and the charging roller 240 being rotatably supported on the drum frame 210, the charging roller 240 being in contact with the photosensitive drum 220, the drum stand electrode 230 being provided at one end of the drum frame 210 in the first direction (A2 direction), the drum stand electrode 230 being electrically connected to the charging roller 240 and the image forming apparatus to supply a voltage of the image forming apparatus to the charging roller 240, so that the charging roller 240 can charge the photosensitive drum 220, and the photosensitive drum 220 can thereby adsorb a developer.

[0076] As shown in Figures 2-4 The developing cartridge 100 includes a cartridge body 1, a developing roller 2, a stirring stand 9, a powder outlet blade 3, a driving assembly, an electrode 4, a chip, and a positioning structure.

[0077] As shown in Figure 2 and Figure 3 The cartridge body 1 includes a developing frame 11, a conductive end cover 12, and a driving end cover 13. One end of the developing frame 11 in the first direction (length direction) is a driving end (A1 direction end), and the other end is a conductive end (A2 direction end). The developing frame 11 has a powder chamber inside for accommodating a developer, which can be toner. The driving end cover 13 is provided outside the end surface of the driving end of the developing frame 11, and the conductive end cover 12 is provided outside the end surface of the conductive end of the developing frame 11, i.e., the conductive end cover 12 and the driving end cover 13 are respectively located outside the two ends of the developing frame 11 in the length direction.

[0078] As shown in Figure 2 andFigure 3 As shown in FIG. 1, the developing roller 2 is rotatably supported on the developing frame 11, and specifically, the axis direction of the developing roller 2 is consistent with the length direction of the developing frame 11 (along the A1 and A2 directions). The developing roller 2 includes a developing roller shaft and a rubber roller body, and the two ends of the developing roller shaft are respectively supported on the end face of the driving end of the developing frame 11 and the conductive end cover 12. The developing roller shaft can be made of a metal conductive material. In the second direction (the B1 and B2 directions), the developing roller 2 is arranged close to the B1 direction end (also referred to as the front end) of the cartridge 1, and in the third direction (the C1 and C2 directions), the developing roller 2 is arranged close to the C1 direction end (also referred to as the upper end) of the cartridge 1. Correspondingly, the B2 direction end of the cartridge 1 is also referred to as the rear end, and the C2 direction end is also referred to as the lower end.

[0079] As shown in FIG. 1, the developing roller 2 is rotatably supported on the developing frame 11, and specifically, the axis direction of the developing roller 2 is consistent with the length direction of the developing frame 11 (along the A1 and A2 directions). The developing roller 2 includes a developing roller shaft and a rubber roller body, and the two ends of the developing roller shaft are respectively supported on the end face of the driving end of the developing frame 11 and the conductive end cover 12. The developing roller shaft can be made of a metal conductive material. In the second direction (the B1 and B2 directions), the developing roller 2 is arranged close to the B1 direction end (also referred to as the front end) of the cartridge 1, and in the third direction (the C1 and C2 directions), the developing roller 2 is arranged close to the C1 direction end (also referred to as the upper end) of the cartridge 1. Correspondingly, the B2 direction end of the cartridge 1 is also referred to as the rear end, and the C2 direction end is also referred to as the lower end. Figure 4 As shown in FIG. 1, the developing roller 2 is rotatably supported on the developing frame 11, and specifically, the axis direction of the developing roller 2 is consistent with the length direction of the developing frame 11 (along the A1 and A2 directions). The developing roller 2 includes a developing roller shaft and a rubber roller body, and the two ends of the developing roller shaft are respectively supported on the end face of the driving end of the developing frame 11 and the conductive end cover 12. The developing roller shaft can be made of a metal conductive material. In the second direction (the B1 and B2 directions), the developing roller 2 is arranged close to the B1 direction end (also referred to as the front end) of the cartridge 1, and in the third direction (the C1 and C2 directions), the developing roller 2 is arranged close to the C1 direction end (also referred to as the upper end) of the cartridge 1. Correspondingly, the B2 direction end of the cartridge 1 is also referred to as the rear end, and the C2 direction end is also referred to as the lower end.

[0080] As shown in FIG. 1, the developing roller 2 is rotatably supported on the developing frame 11, and specifically, the axis direction of the developing roller 2 is consistent with the length direction of the developing frame 11 (along the A1 and A2 directions). The developing roller 2 includes a developing roller shaft and a rubber roller body, and the two ends of the developing roller shaft are respectively supported on the end face of the driving end of the developing frame 11 and the conductive end cover 12. The developing roller shaft can be made of a metal conductive material. In the second direction (the B1 and B2 directions), the developing roller 2 is arranged close to the B1 direction end (also referred to as the front end) of the cartridge 1, and in the third direction (the C1 and C2 directions), the developing roller 2 is arranged close to the C1 direction end (also referred to as the upper end) of the cartridge 1. Correspondingly, the B2 direction end of the cartridge 1 is also referred to as the rear end, and the C2 direction end is also referred to as the lower end. Figure 2 Figure 3 As shown in FIG. 1, the developing roller 2 is rotatably supported on the developing frame 11, and specifically, the axis direction of the developing roller 2 is consistent with the length direction of the developing frame 11 (along the A1 and A2 directions). The developing roller 2 includes a developing roller shaft and a rubber roller body, and the two ends of the developing roller shaft are respectively supported on the end face of the driving end of the developing frame 11 and the conductive end cover 12. The developing roller shaft can be made of a metal conductive material. In the second direction (the B1 and B2 directions), the developing roller 2 is arranged close to the B1 direction end (also referred to as the front end) of the cartridge 1, and in the third direction (the C1 and C2 directions), the developing roller 2 is arranged close to the C1 direction end (also referred to as the upper end) of the cartridge 1. Correspondingly, the B2 direction end of the cartridge 1 is also referred to as the rear end, and the C2 direction end is also referred to as the lower end.

[0081] As shown in FIG. 1, the developing roller 2 is rotatably supported on the developing frame 11, and specifically, the axis direction of the developing roller 2 is consistent with the length direction of the developing frame 11 (along the A1 and A2 directions). The developing roller 2 includes a developing roller shaft and a rubber roller body, and the two ends of the developing roller shaft are respectively supported on the end face of the driving end of the developing frame 11 and the conductive end cover 12. The developing roller shaft can be made of a metal conductive material. In the second direction (the B1 and B2 directions), the developing roller 2 is arranged close to the B1 direction end (also referred to as the front end) of the cartridge 1, and in the third direction (the C1 and C2 directions), the developing roller 2 is arranged close to the C1 direction end (also referred to as the upper end) of the cartridge 1. Correspondingly, the B2 direction end of the cartridge 1 is also referred to as the rear end, and the C2 direction end is also referred to as the lower end. Figure 2 ​As shown, the drive assembly is arranged at the end surface outside of the drive end of the developing frame 11 (towards the side of the drive end cover 13), the drive assembly includes the power receiving member 6 and a gear set. The power receiving member 6 is used to receive the driving force of the image forming device and transmit the driving force through the gear set, thereby driving the developing roller 2 and the stirring frame to rotate. The gear set includes a developing roller gear and a stirring frame gear, the developing roller gear is fixed at one end of the developing roller shaft in the length direction and located outside the end surface of the drive end, the developing roller gear is engaged with the power receiving member 6, so that the developing roller 2 can receive the driving force to rotate. The stirring frame gear is fixed at one end of the stirring frame in the length direction and located outside the end surface of the drive end, the stirring frame gear is engaged with the power receiving member 6, so that the stirring frame can receive the driving force to rotate. The developing roller gear and the stirring frame gear can be directly or indirectly engaged with the power receiving member 6.

[0082] As shown, Figures 2-8 The electrode 4 is arranged at the conductive end of the developing frame 11, and can be specifically mounted at the inner side of the conductive end cover 12. The electrode 4 includes an electrode contact 41, which is configured to be electrically connected with the drum frame electrode 230 to receive the voltage from the drum frame electrode 230. The electrode contact 41 is exposed outside the conductive end cover 12, and specifically, the electrode contact 41 protrudes from the outer side wall (the side wall in the A2 direction) of the conductive end cover 12. In the axial direction of the developing roller 2, the electrode contact 41 is farther away from the drive end cover 13 than the outer side wall (the side wall in the A2 direction) of the conductive end cover 12. The electrode contact 41 protrudes upward from the upper side wall (the side wall in the C1 direction) of the conductive end cover 12. The electrode 4 is electrically connected with one end (the end in the A2 direction) of the developing roller 2 in the length direction, and is also electrically connected with one end (the end in the A2 direction) of the powder outlet blade 3, so as to realize that the electrode 4 supplies the voltage received by the electrode contact 41 from the drum frame electrode 230 to the developing roller 2 and the powder outlet blade 3. Specifically, the electrode 4 includes a first contact portion 42 and a second contact portion 43, wherein the first contact portion 42 is in contact with the developing roller shaft of the developing roller 2, and the second contact portion 43 is in contact with the powder outlet blade 3, so as to realize the transmission of the voltage. In the second direction, the second contact portion 43 is located at the front side (i.e., closer to the developing roller 2) of the electrode contact 41, and the first contact portion 42 is located at the front side (i.e., closer to the developing roller 2) of the second contact portion 43.

[0083] As shown, Figure 7 and Figure 8As shown, electrode 4 can be a conductive steel sheet. Electrode 4 can be fixed to conductive end cap 12 by snap-fitting, pasting, or other means. Electrode contact 41 is a part of the conductive steel sheet, and the first contact portion 42 and the second contact portion 43 are also a part of the conductive steel sheet. Preferably, electrode 4 is installed on conductive end cap 12 by snap-fitting. Electrode 4 is provided with a snap-fitting structure, which includes several generally semi-enclosed structures 44 with one open end formed on electrode 4. The semi-enclosed structures 44 are embedded in grooves provided inside conductive end cap 12, and one or more sides of the semi-enclosed structures 44 are provided with elastic buckles 45 (such as elastic arms). The sidewalls of the grooves are provided with slots that engage with the elastic buckles 45, thereby snapping and fixing electrode 4 to the inside of conductive end cap 12. Furthermore, the electrode 4 is also provided with a structure for positioning with the conductive end cap 12. Specifically, the electrode 4 is provided with at least one positioning hole 46, which cooperates with the positioning support shaft 122 on the inner side of the conductive end cap 12 to achieve the positioning function. Alternatively, the electrode 4 is also provided with another positioning structure. The electrode 4 is provided with a through hole 47, and the side of the through hole 47 is provided with a positioning spring piece 48. Two positioning spring pieces 48 are provided and are arranged opposite to each other, forming a channel between the two positioning spring pieces 48 for the positioning support shaft 122 to pass through. During assembly, the positioning support shaft 122 passes through the channel between the two positioning spring pieces 48. Under the action of elastic force, the two positioning spring pieces 48 press against the outer surface of the positioning support shaft 122, thereby achieving the positioning function and preventing the electrode 4 from dislodging or loosening on the conductive end cap 12, resulting in poor electrical contact.

[0084] In some other embodiments, electrode 4 may also be formed by secondary injection molding of conductive material onto conductive end cap 12.

[0085] A chip is disposed on the conductive end cap 12, specifically at one end of the conductive end cap 12 in the width direction (second direction) near the axis of the developing roller 2 (B1 direction end). The chip is positioned further forward than the axis of the developing roller 2 in the second direction. The chip stores information about the developing cartridge 100. The chip has chip contacts 7, which are configured to electrically connect with an imaging device to establish communication, enabling the imaging device to acquire / recognize information about the developing cartridge 100. Figure 3 As shown, the conductive end cap 12 has a chip mounting base 121 on one end of its width direction near the axis of the developing roller 2 for mounting chips. When the chip is mounted in the mounting base, the chip contact 7 faces away from the conductive end cap 12, that is, the chip contact 7 is approximately facing "forward".

[0086] like Figure 3As shown, the positioning structure is used to position the developing cartridge 100 with the image forming device, specifically, the positioning structure positions the developing cartridge 100 in the mounting direction of the image forming device by contacting the second guide rail 311 of the image forming device to ensure stable installation, the mounting direction extends substantially along the width direction of the developing cartridge 100 (i.e. the B1 and B2 directions). The positioning structure includes a first positioning column 51a and a second positioning column 52a arranged on the conductive end cover 12, the first positioning column 51a and the second positioning column 52a are protrudingly arranged on the outer side of the conductive end cover 12, in the width direction (the B1 and B2 directions), the first positioning column 51a is closer to the developing roller 2 than the second positioning column 52a, and the electrode contact 41 is located between the first positioning column 51a and the second positioning column 52a in the width direction. The positioning structure can guide the installation of the developing cartridge 100, and can also play a positioning and fixing role after the developing cartridge 100 is installed in place, and the abutment of the positioning structure and the second guide rail 311 can prevent the developing cartridge 100 from rotating and ensure stable electrical connection of the electrode 4.

[0087] As shown in the figure, Figure 9 As shown, when viewed in the projection plane perpendicular to the axis of the developing roller (i.e. viewed along the A1 and A2 directions), the axis of the developing roller 2, the chip contact 7 and the connecting line of the positioning structure form an imaginary area S1, and the area with the largest area formed by the connecting line of the three is taken as the imaginary area S1. In this embodiment, the area formed by the connecting line of the axis of the developing roller 2, the chip contact and the second positioning column 52a has the largest area, which is the imaginary area S1, and the electrode contact 41 is arranged outside the imaginary area S1.

[0088] As shown in the figure, Figure 2 As shown, the driving end cover 13 is slidably provided with a sliding block 8, the driving end cover 13 is provided with a sliding groove 131 extending substantially along the width direction (the second direction), the sliding block 8 is slidably arranged in the sliding groove 131, and the sliding block 8 has a force receiving protrusion for receiving the separating force of the image forming device, so that the sliding block 8 slides in the sliding groove 131. Due to the sliding of the sliding block 8, the separating force cannot act on the entire developing cartridge 100 through the sliding block 8, so the developing cartridge 100 of this embodiment cannot move relative to the drum assembly, that is, the developing roller 2 is always in contact with the photosensitive drum after the developing cartridge 100 is installed in place in the image forming device.

[0089] As shown in the figure, Figure 2 As shown, the positioning structure further includes a first positioning column 51b and a second positioning column 52b arranged on the driving end, specifically, the first positioning column 51b and the second positioning column 52b are protrudingly arranged on the outer side of the sliding block 8, and the two are respectively located at the two ends of the sliding block 8 in the width direction, and the first positioning column 51b is closer to the axis of the developing roller 2 than the second positioning column 52b.

[0090] Compared with the prior art, the scheme of the embodiment cancels the double-electrode structure, relies on the electrode contact 41 of the single electrode 4 to receive the voltage of the drum electrode 230 to supply power to the developing roller 2 and the powder outlet knife 3, and the electrode contact 41 is arranged outside the imaginary area S1 formed by the axis of the developing roller 2, the chip contact 7 and the connecting line of the positioning structure, so as to ensure stable connection of the electrode contact 41 and the drum electrode 230 and improve the stability of electrical contact and transmission.

[0091] Embodiment two

[0092] The embodiment discloses another developing cartridge 100, which is different from the developing cartridge 100 in the first embodiment in that the positioning structure is different.

[0093] As shown in Figure 10 , the positioning structure further includes an auxiliary positioning structure 53, the auxiliary positioning structure 53 is a protruding structure arranged on the conductive end cover 12, the auxiliary positioning structure 53 is formed by protruding rearward and downward from the rear lower end (the direction end of B2 and C1) of the conductive end cover 12, the auxiliary positioning structure 53 is in the shape of a rectangular plate / block, the auxiliary positioning structure 53 can abut against the image forming equipment to form positioning / support when installed, and can prevent the developing cartridge 100 from rotating greatly during installation to form a dead point of installation, so that the user can install more smoothly.

[0094] In the embodiment, the imaginary area S2 is different from the foregoing scheme, in the embodiment, the imaginary area S2 is an area with the largest area formed by the connecting line of the axis of the developing roller, the chip contact, the second positioning column 52a and the auxiliary positioning structure 53, and the electrode contact 41 is located outside the imaginary area S2.

[0095] It should be noted that the positioning structure can be other more different structures on the developing cartridge that can abut against the image forming equipment to form positioning when installed. The imaginary area is always an area with the largest area formed by the connecting line of the axis of the developing roller, the chip contact and the positioning structure.

[0096] The other structures of the developing cartridge 100 in the embodiment are the same as those in the first embodiment, and will not be described here.

[0097] Embodiment three

[0098] The embodiment provides a developing cartridge 100, which is different from the developing cartridge 100 in the first embodiment in that the structure of the electrode is different.

[0099] As shown in Figures 11-13As shown, in the embodiment, the electrode 4 is arranged at the conductive end of the developing frame 11, and can be arranged at the inner side of the conductive end cover 12. The electrode 4 includes an electrode contact 41. The conductive end cover 12 is provided with a mounting hole. The electrode contact 41 is exposed outside the conductive end cover 12 from the mounting hole. The electrode contact 41 is configured to be electrically connected to an electrical output of the image forming device to receive a voltage, instead of being electrically connected to the drum holder electrode. The electrode contact 41 is arranged close to the rear end of the cartridge 1 in the second direction, and is arranged close to the upper end of the cartridge 1 in the third direction. The electrode 4 is electrically connected to one end of the developing roller 2 in the length direction, and is electrically connected to one end of the powder outlet blade 3 in the length direction. After the electrode contact 41 receives the voltage from the image forming device, the voltage is supplied to the developing roller 2 and the powder outlet blade 3 through the electrode 4. In the second direction, the second contact portion 43 is located at the front side of the electrode contact 41, and the first contact portion 42 is located at the front side of the second contact portion 43.

[0100] As shown in Figure 13 and Figure 14 In the embodiment, the positioning structure is the same as that in the first embodiment, and includes the first positioning column 51a and the second positioning column 52a arranged at the conductive end, and the first positioning column 51b and the second positioning column 52b arranged at the driving end.

[0101] In the embodiment, the positioning structure is located below the connection line L (the connection line L extends substantially in the width direction) between the electrode contact 41 and the chip contact 7. More specifically, the connection line L divides the developing cartridge 100 into a first region 1a and a second region 1b. The developing roller 2 is located in the first region 1a. There is no other electrode contact in the second region 1b. The positioning structure is at least partially located in the second region 1b. Preferably, the positioning structure is entirely located in the second region 1b. More preferably, all the positioning columns are located in the second region 1b, whether at the conductive end or at the driving end.

[0102] As shown in Figure 14 In the embodiment, the slider 8 is further provided with a connecting portion 83. The connecting portion 83 connects the first positioning column 51b and the second positioning column 52b. The connecting portion 83 is further provided with a limiting rib 84. The limiting rib 84 is opposite to the inner side wall 85 of the slider 8 in the axial direction (the longitudinal direction, i.e., the left-right direction), and forms a clamping groove. The clamping groove is used to cooperate with the second guide rail of the image forming device, and hooks / engages the second guide rail of the image forming device. That is, part of the structure of the second guide rail is clamped into the clamping groove between the limiting rib 84 and the inner side wall 85 of the slider 8, so that the developing cartridge 100 is positioned in the image forming device in the axial direction (the first direction), and ensures the stable installation of the developing cartridge 100.

[0103] Compared with the prior art, the scheme of the embodiment cancels the double-electrode structure, relies on the single electrode 4 to supply power to the powder outletting knife 3 and the developing roller 2, and positions the structure below the connection line L between the electrode contact 41 and the chip contact 7, that is, positions the center below the connection line L, so that the stability of the developing cartridge 100 can be maintained, and the electrode contact 41 is opposite to the positioning structure (positioning center) on the opposite side of the connection line L, so that the stable connection between the electrode contact 41 and the image forming equipment can be ensured, the stability of electrical contact and transmission is improved, and the technical problem of printing defects caused by unstable contact of the electrode 4 in the printing process is solved.

[0104] The other structures of the developing cartridge 100 in the embodiment are the same as those in Embodiment One, and will not be described here again.

[0105] Embodiment Four

[0106] The positioning structure in the foregoing embodiments includes the first positioning column and the second positioning column arranged at intervals in the second direction, resulting in that the developing cartridge 100 needs to be installed at a certain angle during the installation process, so that the positioning structure slides along the second guide rail, but since the positioning structure is large and long (in the second direction), if the installation angle of the developing cartridge 100 is slightly deflected, the second positioning column of the positioning structure will interfere with the second guide rail, so that the developing cartridge 100 is difficult to install or is installed with a jam.

[0107] Based on this, the embodiment provides another developing cartridge 100, which is different from Embodiment Three in that the positioning structure is different.

[0108] As shown in Figure 15 and Figure 16 In the embodiment, the positioning structure only includes the first positioning column 51a at the conductive end, and the first positioning column 51a is located at the middle position of the connection line between the electrode contact 41 and the chip contact 7 in the second direction; the first positioning column 51a is still located in the second region 1b. The second positioning column 52a (that is, the positioning column far away from the axis of the developing roller 2) is canceled. At the driving end, the positioning structure only includes the first positioning column 51b at one end of the slider 8, and the second positioning column 52b (that is, the positioning column far away from the axis of the developing roller 2) at the other end of the slider 8 is canceled.

[0109] The developing cartridge 100 in the embodiment is a drum roller non-separation structure. When the drum roller separation program is executed by the image forming equipment, only the separation force drives the slider 8 to move, but the main body of the developing cartridge 100 is still abutted against the drum assembly, and the lack of the second positioning column is not affected. The developing cartridge 100 is also abutted against by the drum assembly during the printing process and will not rotate due to the lack of the second positioning column. However, after the second positioning columns at the driving end and the conductive end are canceled, the user can install the developing cartridge 100 more conveniently.

[0110] The other structures of the developing cartridge 100 in the embodiment are the same as those in Embodiment One, and will not be described here again.

[0111] Embodiment five

[0112] The limiting ribs 84 on the slider 8 in Embodiment three are used to longitudinally position the developing cartridge 100 in the image forming device. However, the limiting ribs 84 are small in structure and prone to manufacturing errors. If the limiting ribs 84 are too large in structure, the developing cartridge 100 will not be stably positioned, which will affect the electrical connection between the electrical contacts of the developing cartridge 100 and the electrical contacts of the image forming device. If the limiting ribs 84 are too small, the developing cartridge 100 cannot be installed in the image forming device.

[0113] Based on this, as shown in Figure 17 the present embodiment provides yet another developing cartridge 100. Compared with Embodiment one, the limiting ribs 84 on the slider 8 are cancelled.

[0114] As shown in Figure 17 in the present embodiment, the limiting ribs 84 on the slider 8 are cancelled, no clamping groove is formed on the slider 8, and the longitudinal positioning is not performed by clamping the second guide rail with the limiting ribs 84. The manufacturing precision of the slider 8 is reduced.

[0115] Since the limiting ribs 84 are not provided, the longitudinal positioning of the developing cartridge 100 is performed by cooperating with other structures on the developing cartridge 100 and the image forming device. One solution is to thicken the positioning structure, so that when the developing cartridge 100 is installed in the image forming device, the end surface of the positioning structure in the axial direction (longitudinal direction) abuts against the side wall of the image forming device, thereby longitudinally positioning the developing cartridge 100 in the image forming device and ensuring that the developing cartridge 100 is stably installed. Another solution is to thicken the drive end cover 13 and / or the conductive end cover 12, so that when the developing cartridge 100 is installed in the image forming device, the end wall (outer side surface) of the drive end cover 13 and / or the conductive end cover 12 in the axial direction abuts against the side wall of the image forming device, thereby longitudinally positioning the developing cartridge 100 in the image forming device and ensuring that the developing cartridge 100 is stably installed.

[0116] The other structures of the developing cartridge 100 in the present embodiment are the same as those in Embodiment one, and will not be described here.

[0117] Embodiment six

[0118] The present embodiment provides a developing cartridge 100. Compared with Embodiment one, the difference lies in that the structure of the electrode 4 is different, and the developing cartridge 100 further includes a voltage stabilizing module structure.

[0119] As shown in Figures 18-20As shown, in the embodiment, the electrode 4 comprises an electrode contact 41, a second contact 43, a half-enclosure structure 44, a through hole 47 and a positioning spring 48, the other side of the half-enclosure structure 44 opposite to the opening is exposed outside the conductive end cover 12 as the electrode contact 41 through the mounting hole 123. The electrode 4 only comprises the second contact 43 electrically connected with the powder outletting knife 3, the electrode 4 is not directly electrically connected with the developing roller 2, but is electrically connected with the developing roller 2 through the voltage stabilizing module structure 320.

[0120] As shown in Figure 19 , Figures 21-23 , the voltage stabilizing module structure 320 is mounted on the side (inner side) of the conductive end cover 12 close to the developing frame 11. Specifically, the inner side of the conductive end cover 12 is provided with a mounting groove 124, the shape of the mounting groove 124 is matched with the shape of the voltage stabilizing module structure 320, the voltage stabilizing module structure 320 is mounted in the mounting groove 124 and is fixed on the inner side of the conductive end cover 12 by gluing.

[0121] As shown in Figure 22 and Figure 23 , one end of the voltage stabilizing module structure 320 is connected to the electrode 4, and the other end is connected to the developing roller shaft of the developing roller 2. When the electrode 4 is electrically connected with the image forming device, the voltage stabilizing module structure 320 can provide voltage to the developing roller 2, and at the same time, the voltage stabilizing module structure 320 can adjust the voltage obtained from the image forming device, so that the voltage transmitted to the developing roller 2 is more stable, and the quality of the developed image is ensured.

[0122] As shown in Figure 22 and Figure 23 , preferably, a conductive part 330 is further included, one end of the voltage stabilizing module structure 320 is electrically connected with the electrode 4 through the conductive part 330, and the other end is electrically connected with the developing roller shaft of the developing roller 2 through the conductive part 330. The conductive part 330 can be a wire, a metal wire or other objects capable of conducting electricity.

[0123] Preferably, the voltage stabilizing module structure 320 is a voltage stabilizing diode, and the voltage stabilizing module structure 320 is connected to one end of the electrode 4 provided with the electrode contact 41 through the conductive part 330, or can be connected to other positions on the electrode 4.

[0124] The connection between the conductive part 330 and the electrode 4 can be a welding connection, or the conductive part 330 and the electrode 4 can be integrated, and the voltage stabilizing module structure 320 is electrically connected by welding with the conductive part 330.

[0125] The positioning structure in this embodiment is the same as in Embodiment 1. The positioning structure is located below the electrode contact 41 in the third direction. Viewed along the rotation axis of the developing roller, the voltage stabilizing module structure 320 is disposed near at least one positioning structure, i.e., on the conductive end cap 12. The voltage stabilizing module structure 320 is positioned close to either the first positioning post 51a or the second positioning post 52a in the third direction. In the second direction, the voltage stabilizing module structure 320 at least partially overlaps with at least one positioning structure. After the positioning structure is positioned with the second guide rail 311 of the imaging device, the voltage stabilizing module structure 320 positioned close to the positioning structure is not easily loosened, ensuring the stability of the electrical connection.

[0126] The other structures of the developing cartridge 100 in this embodiment are the same as those in Embodiment 1, and will not be described again here.

[0127] Example 7

[0128] This embodiment provides another developing cartridge 100, which differs from Embodiment Six in that the connection method of the voltage regulator module structure is different.

[0129] like Figure 24 and Figure 25 As shown, in this embodiment, the voltage regulator module structure 320 is fixed to the conductive end cover 12 by a snap-fit ​​mechanism. Specifically, a snap-fit ​​structure 125 is provided on the inner side of the conductive end cover 12 (the side closer to the developing frame 11). The snap-fit ​​structure 125 includes a semi-enclosed limiting seat 1251. The limiting seat 1251 is provided with a hook 1252 and a limiting part 1253. The limiting part 1253 is located on the side of the limiting seat 1251 away from the inner side of the conductive end cover 12. The hook 1252 is located on both sides of the limiting seat 1251. The hook 1252 is an elastic hook, and the end where the hook is located forms the entry port of the limiting seat 1251. Furthermore, the shape of the limiting seat 1251 is adapted to the shape of the voltage regulator module structure 320. The voltage regulator module structure 320 enters the limiting seat 1251 through the inlet. During entry, the voltage regulator module structure 320 can compress the hook 1252 to deform. After the voltage regulator module structure 320 is fully entered, the hook 1252 returns to its original shape and engages with the side of the voltage regulator module structure 320 to fix the voltage regulator module structure 320. The top surface of the voltage regulator module structure 320 (the surface away from the inner side of the conductive end cover 12) is limited by the limiting part 1253 (can abut against the limiting part 1253), so that the voltage regulator module structure 320 cannot come out of the limiting seat 1251, thereby stably engaging and fixing the voltage regulator module structure 320 to the inner side of the conductive end cover 12.

[0130] On the conductive end cap 12, the snap-fit ​​structure 125 of the fixed voltage regulator module structure 320 is set in a third-direction upward position close to the positioning structure.

[0131] In the embodiment, the voltage stabilizing module structure 320 is fixed by the buckle structure 125, facilitating the fixing and dismounting of the voltage stabilizing module structure 320.

[0132] The other structures of the developing cartridge 100 of the embodiment are the same as those of the first embodiment, and will not be described herein.

[0133] Embodiment Eight

[0134] The embodiment provides still another developing cartridge 100, which differs from the sixth embodiment in that the electrode and the positioning structure are different.

[0135] As shown in Figures 26-28 the embodiment, the electrode 4 includes the first contact part 42, and the second contact part 43 is cancelled, that is, the electrode 4 of the embodiment is electrically connected to the developing roller 2 through the first contact part 42, and is not directly electrically connected to the powder doctor blade 3, but is indirectly electrically connected to the powder doctor blade 3 through the voltage stabilizing module structure 320.

[0136] As shown in Figure 26 the embodiment, the positioning structure includes the second positioning column 52a and the baffle positioning structure 54. The first positioning column 51a closer to the developing roller 2 than the second positioning column 52a is cancelled. The electrode contact 41 of the electrode 4 is located below the second positioning column 52a in the third direction. As viewed along the rotation axis of the developing roller 2, the voltage stabilizing module structure 320 is arranged near the second positioning column 52a, and does not overlap the second positioning column 52a.

[0137] As shown in Figure 26 and Figure 29 the embodiment, the baffle positioning structure 54 is used to cooperate with the imaging device to position, so as to avoid the developing cartridge 100 from rotating in the imaging device, and thus affecting the stability of the electrical connection between the electrode contact 41 and the imaging device. Specifically, the baffle positioning structure 54 is arranged on the conductive end cover 12, and is specifically located at the upper end (the C1 direction one end) of the conductive end cover 12. The baffle positioning structure 54 is a protruding structure protruding in the direction away from the developing frame 11 (the A2 direction).

[0138] When the developing cartridge 100 is installed in the imaging device, the second positioning column 52a can move in the second guide rail 311 in the imaging device, and the baffle positioning structure 54 moves on the first guide rail 310 at the rear side of the second positioning column 52a. After the developing cartridge 100 is installed in place in the imaging device, the second positioning column 52a abuts in the first guide rail 310, and the baffle positioning structure 54 is clamped in the first guide rail 310, so that the developing cartridge 100 is positioned in the imaging device by being limited, preventing the developing cartridge 100 from rotating relative to the imaging device, and preventing the electrode contact 41 from being in poor contact with the imaging device.

[0139] In the embodiment, the baffle positioning structure 54 and the second positioning column 52a are used to guide the installation of the developing cartridge 100, so that the developing cartridge 100 can be correctly installed in the image forming device, and the cooperation of the baffle positioning structure 54 and the second positioning column 52a can position the developing cartridge 100 in the image forming device, which can improve the stability of the electrical transmission between the electrode contact 41 and the image forming device, make the electrical connection between the developing cartridge 100 and the image forming device more stable, and improve the printing quality of the image forming device.

[0140] The other structures of the developing cartridge 100 in the embodiment are the same as those in Embodiment One, and will not be described here again.

[0141] Embodiment Nine

[0142] The embodiment provides a developing cartridge 100, which is different from Embodiment Eight in that the baffle positioning structure 54 is different.

[0143] In the embodiment, the baffle positioning structure 54 no longer cooperates with the first guide rail 310 to position the developing cartridge 100, but cooperates with the drum assembly 200 installed in the image forming device to position the developing cartridge 100.

[0144] As shown in Figure 30 and Figure 31 , the baffle positioning structure 54 is arranged at the upper end (C1 direction one end) of the conductive end cover 12, the baffle positioning structure 54 has a first part connected to the conductive end cover 12 and protruding in the A1 direction, and a second part connected to the end of the first part, the second part protrudes in the direction close to the developing roller 2 (B1 direction), that is, the first part and the second part are in the form of a “7” inside the conductive end cover 12.

[0145] As shown in Figure 32 , when the developing cartridge 100 is installed in the image forming device, the second positioning column 52a can move in the second guide rail 311 in the image forming device, and the baffle positioning structure 54 does not guide. After the developing cartridge 100 is installed in place, the baffle positioning structure 54 abuts against the upper end of the drum frame 210 of the drum assembly 200, and the second positioning column 52a abuts against the second guide rail 311, so that the developing cartridge 100 is limited and positioned in the image forming device, preventing the developing cartridge 100 from rotating relative to the image forming device, and preventing poor contact between the electrode contact and the image forming device.

[0146] Optionally, the side of the second part of the baffle positioning structure 54, which is used to contact the drum frame 210, is also provided with an inclined surface 541. By providing the inclined surface 541, the baffle positioning structure 54 can be prevented from colliding with the drum frame 210 when the baffle positioning structure 54 contacts the drum frame 210, thereby preventing damage to the drum frame 210.

[0147] The other structures of the developing cartridge 100 in the embodiment are the same as those in Embodiment One, and will not be described here again.

[0148] The above merely describes some embodiments of the present application. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A developing cartridge detachably mountable in an image forming apparatus including a drum assembly, the developing cartridge comprising: a rotatable developing roller; a cartridge body configured to support the developing roller, the cartridge body having a drive end cover and a conductive end cover provided at both ends in a developing roller axial direction; a powder outlet blade mounted on the cartridge body, a portion of the powder outlet blade being in contact with the developing roller to control a thickness of a developer on the developing roller; an electrode provided on the conductive end cover, the electrode having an electrode contact exposed outside the conductive end cover, the electrode contact being electrically connected to the image forming apparatus to supply a voltage directly or indirectly to the powder outlet blade and the developing roller; a chip provided on the conductive end cover, the chip having a chip contact electrically connected to the image forming apparatus; a positioning structure for positioning the developing cartridge with the image forming apparatus; characterized in that, when viewed in a projection plane orthogonal to an axis of the developing roller, a line connecting a center of the developing roller, the chip contact, and the positioning structure forms an imaginary area, and the electrode contact is provided outside the imaginary area.

2. The process cartridge according to claim 1, wherein The electrode contact is provided protruding from an outer side wall of the conductive end cover.

3. The process cartridge of claim 2 wherein, In the axis direction of the developing roller, the electrode contact is farther from the drive end cover than the outer side wall of the conductive end cover.

4. The process cartridge of claim 1, wherein, The electrode contact protrudes upward from an upper side wall of the conductive end cover.

5. The process cartridge of claim 1, wherein, The drum assembly is provided with a drum holder electrode, and the electrode contact is electrically connected to the drum holder electrode.

6. The process cartridge of claim 1, wherein, The positioning structure is at least partially located below the line connecting the electrode contact and the chip contact.

7. The process cartridge of claim 6 wherein, The line connecting the electrode contact and the chip contact divides the developing cartridge into a first area in which the developing roller is located and a second area in which the positioning structure is at least partially located, and there is no other electrode contact in the second area.

8. The developer cartridge of any one of claims 1-7, wherein, The electrode includes a first contact portion in contact with the developing roller and a second contact portion in contact with the powder outlet blade.

9. The process cartridge of claim 8 wherein, The second contact portion is closer to the developing roller than the electrode contact.

10. The process cartridge of claim 9 wherein, The first contact portion is located on a front side of the second contact portion.

11. The process cartridge of claim 1, wherein, A voltage stabilizing module structure provided on the conductive end cover is further included, and the electrode is electrically connected to the developing roller and / or the powder outlet blade through the voltage stabilizing module structure.

12. The process cartridge of claim 11, wherein, The voltage stabilizing module structure is connected between the electrode contact and the developing roller or between the electrode contact and the powder outlet blade.

13. The process cartridge of claim 11, wherein, Viewed along the axis of the developing roller, the voltage stabilizing module structure is provided in the vicinity of a portion of the positioning structure.

14. The developer cartridge of any of claims 1-7, 9-13, wherein, The electrode includes a clamping structure for clamping with the conductive end cover to be mounted on the conductive end cover.

15. The developer cartridge of any of claims 1-7, 9-13, wherein, The positioning structure includes a first positioning column and a second positioning column, and the first positioning column is closer to the developing roller than the second positioning column.

16. The developer cartridge of claim 15, wherein, The imaginary area is formed by a line connecting the center of the developing roller, the chip contact, and the second positioning column.

17. The developer cartridge of claim 15, wherein, The positioning structure includes an auxiliary positioning structure, and the auxiliary positioning structure is farther from the developing roller than the second positioning column.

18. The process cartridge of claim 17 wherein, The imaginary area is formed by a line connecting the center of the developing roller, the chip contact, the second positioning column, and the auxiliary positioning structure.

19. The developer cartridge of any of claims 1-7, 9-13, wherein, The positioning structure includes a baffle positioning structure that abuts against the imaging device or drum assembly to position the development cartridge.

20. The developer cartridge of claim 19, wherein, The baffle positioning structure is disposed at an upper end of the conductive end cap.

21. The developer cartridge of claim 19, wherein, A side of the baffle positioning structure that abuts against the drum assembly is provided as a bevel.

Images