Separable developing box

Abstract

The utility model discloses a separable developing box which comprises a base provided with a photosensitive drum; the moving part is movably arranged on the base, the moving part is provided with a developing roller, and the moving part can move relative to the base until the photosensitive drum is in contact with or separated from the developing roller; the movable receiving part is arranged on the movable part, and is used for receiving power from a force application part of the printer to drive the movable part to move relative to the base until the photosensitive drum is in contact with or separated from the developing roller; the abutting piece is movably arranged on the base; when the force applying part is in the separation state, the abutting part and the movable receiving part move together to separate the developing roller from the photosensitive drum; when the force application part is in a neutral state, the abutting part can keep the distance between the movable receiving part and the force application part, so that the developing roller and the photosensitive drum are kept separated; by applying the developing box, the reliability can be effectively improved while the printing effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a printer field especially separates the developing box of a kind of. BACKGROUND

[0002] In the current part laser printer, the whole developing box is divided into fixed part and rotating part, photosensitive drum is arranged in fixed part and upper, and powder bin and developing roller are arranged on rotating part;When printing, force component drives rotating part to rotate to make developing roller and photosensitive drum contact, and force component drives rotating part to rotate to make developing roller and photosensitive drum separate in non-printing state.

[0003] Specifically in the non-printing state after developing box installation, force component is positively moved to separation state along the second direction, drives rotating part to rotate to make developing roller and photosensitive drum separate, at this time, retaining component is rotated to jam rotating part under the action of spring, so that developing roller and photosensitive drum keep separation state;When printing, force component is reversely moved along the second direction, drives retaining component to reverse rotation to release the jam of rotating part, and rotating part rotates to make developing roller and photosensitive drum contact;When printer is operated for a long time, retaining component is easily unable to jam rotating part due to spring failure, causing developing box to work abnormally, and reducing its reliability. SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in prior art is solved.For this reason, the utility model provides a separable developing box, which can guarantee printing effect and effectively improve its reliability.

[0005] The separable developing box of the utility model, comprising: base, photosensitive drum is arranged;Mobile part, mobile part is movably arranged on base, mobile part is provided with developing roller, and mobile part can be moved to contact or separate photosensitive drum and developing roller relative to base;Mobile receiving element, mobile receiving element is arranged on mobile part, and mobile receiving element is used for receiving power from force component of printer to drive mobile part to move to contact or separate photosensitive drum and developing roller relative to base;Butt joint piece, butt joint piece is movably arranged on base;When force component is in separation state, butt joint piece moves together with mobile receiving element to make developing roller and photosensitive drum separate;When force component is in neutral state, butt joint piece can keep the interval between mobile receiving element and force component to make developing roller and photosensitive drum keep separate.

[0006] According to some embodiments of the utility model, the butt joint piece includes an abutting portion arranged between the mobile receiving element and the force component;When the force component is in the separation state, the abutting portion moves together with the mobile receiving element along the second direction to separate the developing roller and the photosensitive drum;When the force component is in the neutral state, the abutting portion can keep the interval between the mobile receiving element and the force component to keep the developing roller and the photosensitive drum separate.

[0007] According to some embodiments of the present application, the abutting piece further comprises a second limiting portion fixedly connected with the abutting portion, and the second limiting portion is in sliding cooperation with the limiting groove.

[0008] According to some embodiments of the present application, the abutting piece further comprises a first identifying portion fixedly connected with the abutting portion, and the first identifying portion can enable the force applying component to move along the third direction.

[0009] According to some embodiments of the present application, the abutting piece is an integral forming piece.

[0010] According to some embodiments of the present application, the separable developing cartridge further comprises a second identifying portion arranged on the base, and the second identifying portion is located at the rear side of the abutting portion along the second direction, and when the force applying component is in the printing state, the second identifying portion can enable the force applying component to move along the third direction.

[0011] According to some embodiments of the present application, the separable developing cartridge further comprises a first edge cover arranged at one end of the base along the first direction, the second identifying portion is integrally formed with the first edge cover, and the moving portion is rotationally connected with the first edge cover.

[0012] According to some embodiments of the present application, the moving portion comprises a first supporting seat rotationally arranged on the first edge cover, the moving receiving piece is fixedly connected with the first supporting seat, the developing roller is rotationally arranged on the first supporting seat, and the photosensitive drum is rotationally arranged on the first edge cover, and the first supporting seat can rotate relative to the base to contact or separate the developing roller and the photosensitive drum.

[0013] According to some embodiments of the present application, the first edge cover is provided with a first limiting portion, and the first supporting seat is matched with the first limiting portion.

[0014] According to some embodiments of the present application, the separable developing cartridge further comprises a reset mechanism, and the reset mechanism provides a driving force for the moving portion to enable the developing roller and the photosensitive drum to contact.

[0015] The separable developing cartridge is applied, when the developing cartridge is installed and printing is not needed, the force applying component drives the abutting piece and the moving receiving piece to move together, so that the developing roller and the photosensitive drum are separated, then the force applying component returns to the neutral state, and since the abutting piece maintains the spacing between the moving receiving piece and the force applying component at this time, the developing roller and the photosensitive drum are still in the separated state, the developing roller and the photosensitive drum can be separated when printing is not needed without changing the operation mode of the force applying component of the printer, the printing effect is ensured, the separation of the developing roller and the photosensitive drum does not need to rely on the spring driving to keep the component rotating, the failure of the keeping component caused by the repeated use of the spring is effectively reduced, and the reliability of the developing cartridge is improved.

[0016] Additional aspects and advantages of the present application will be set forth in part in the following description, and in part will become apparent to those skilled in the art upon examination of the following description, or can be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a side view of a separable developing cartridge in the embodiment of the present application;

[0019] Figure 2 is another perspective view of the separable developing cartridge in the embodiment of the present application;

[0020] Figure 3 is a side view of a partial structure of the separable developing cartridge in the embodiment of the present application;

[0021] Figure 4 is Figure 3 is an enlarged view of A in FIG. 4;

[0022] Figure 5 is Figure 3 is an isometric view of a partial structure in FIG. 4;

[0023] Figure 6 is Figure 5 is a side view of a partial structure after removing the first support seat in FIG. 4;

[0024] Figure 7 is Figure 6 is an enlarged view of A in FIG. 4;

[0025] The above-described drawings contain the following reference numerals.

[0026] Reference Name 100 Base 110 First side cover 111 Second identification part 112 First supporting part 113 First limiting part 120 Photosensitive drum 130 First power receiving member 141 Butt part 142 First identification part 143 Second limiting part 210 Powder bin 220 First supporting seat DETAILED DESCRIPTION

[0027] Embodiments of the present application will be described in detail below with reference to the drawings, in which the same or similar components are denoted by the same or similar reference numerals, and examples of embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are for the purpose of explaining the present application only, and should not be construed as limiting the present application.

[0028] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and therefore should not be construed as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

[0029] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two and above, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number.If it is described to the first, the second is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0030] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model combined with the specific content of the technical scheme.

[0031] Reference Figures 1 to 7 The separable developing box of the embodiment comprises: a base 100 provided with a photosensitive drum 120; a moving part movably arranged on the base 100, the moving part is provided with a developing roller, and the moving part can be moved to contact or separate the photosensitive drum 120 and the developing roller relative to the base 100; a moving receiving piece arranged on the moving part, the moving receiving piece is used to receive power from a force applying component of a printer to drive the moving part to move relative to the base 100 to contact or separate the photosensitive drum 120 and the developing roller; and an abutting piece movably arranged on the base 100; when the force applying component is in a separation state, the abutting piece moves together with the moving receiving piece to separate the developing roller and the photosensitive drum 120; and when the force applying component is in a neutral state, the abutting piece can keep the spacing between the moving receiving piece and the force applying component to keep the developing roller and the photosensitive drum 120 separated.

[0032] By using the separable developing box, when printing is not needed after the developing box is installed, the force applying component drives the abutting piece and the moving receiving piece to move together, so that the developing roller is separated from the photosensitive drum 120; then the force applying component returns to the neutral state, and since the abutting piece keeps the spacing between the moving receiving piece and the force applying component at this time, the developing roller and the photosensitive drum 120 are still in a separated state; under the premise that the operation mode of the force applying component of the printer is not changed, the developing roller and the photosensitive drum 120 can be separated when printing is not needed, and the printing effect is ensured; and the separation of the developing roller and the photosensitive drum 120 does not need to rely on the spring driving to keep the part rotating, which effectively reduces the failure of the keeping part caused by the failure of the spring after being used for many times, and improves the reliability of the developing box.

[0033] Reference Figure 3 And Figure 4The view angle of the developer cartridge is that the force applying part of the printer has three states, which are separated state, neutral state and printing state, after the developer cartridge is loaded into the printer; when the force applying part is in the separated state, the force applying part moves towards the second direction, pushes the abutting piece and the moving receiving piece together to move towards the second direction to drive the whole moving part to move, so that the developing roller and the photosensitive drum 120 are separated; after the developing roller and the photosensitive drum 120 are separated, the force applying part enters the neutral state, at this time, if the developer cartridge in the prior art separates the moving receiving piece from the force applying part and the retaining part is rotated to the stuck rotating part under the action of the spring to make the developing roller and the photosensitive drum 120 keep separated, the abutting piece in the developer cartridge in the embodiment can keep the interval between the force applying part and the moving receiving piece, so that the developing roller and the photosensitive drum 120 can also keep the separated state; before printing, the force applying part enters the printing state, at this time, the force applying part moves towards the opposite direction of the second direction; at this time, if the developer cartridge in the prior art reversely rotates the retaining part to release the clamping of the moving part, the developing roller and the photosensitive drum 120 are combined, while the developer cartridge in the embodiment, the abutting piece loses the abutment, the moving receiving piece and the abutting piece move together towards the opposite direction of the second direction, at this time, the moving part moves to the contact of the developing roller and the photosensitive drum 120, and the printing starts; it can be seen that whether the developer cartridge in the prior art or the developer cartridge in the embodiment, the running state of the printer and the force applying part is the same, which ensures the printing effect; and the developer cartridge in the embodiment does not need the retaining part to rotate to the stuck rotating part under the action of the spring when the force applying part enters the neutral state, so that the spring failure does not cause the retaining part to fail to work and cause the developer cartridge failure, which effectively improves the reliability of the developer cartridge; in particular, since the retaining part of the developer cartridge in the prior art is small, the spring acting on the retaining part is small, and the spring is easy to fail after being used for many times.

[0034] In order to ensure that the developing roller and the photosensitive drum 120 can normally contact in the printing state, the developer cartridge in the embodiment further comprises a reset mechanism, which provides driving force for the moving part to make the developing roller and the photosensitive drum 120 contact; it can be understood that the process that the force applying part drives the abutting piece and the moving receiving piece to move along the second direction is the process of resisting the driving force of the reset mechanism; after the force applying part enters the printing state, the driving force of the reset mechanism can drive the developing roller and the photosensitive drum 120 to contact; wherein the reset mechanism can adopt elastic components such as springs to connect the base 100 and the moving part, or can adopt magnetic components to apply driving force between the base 100 and the moving part.

[0035] As Figure 1In the embodiment, the first direction refers to the positive direction along the x-axis, the axes of the developing roller and the photosensitive drum 120 are parallel to the positive direction of the x-axis; the second direction refers to the positive direction along the y-axis, and the third direction refers to the positive direction along the z-axis. The coordinates in the drawings in the embodiment do not represent that the xyz coordinate system is an orthogonal coordinate system.

[0036] It can be understood that, in the embodiment, the moving part and the base 100 can be connected in a rotating manner or in a sliding manner, both of which can realize the separation and combination of the developing roller and the photosensitive drum 120; the printer and the force applying component are the working environment of the developing cartridge and are not part of the developing cartridge itself; in the embodiment, the separable developing cartridge refers to the developing roller and the photosensitive drum 120 being separable; according to the principle of the printer, in order to ensure that the toner can be transferred from the developing roller to the photosensitive drum 120 during printing, the developing roller and the photosensitive drum 120 need to be in contact, and separating the developing roller and the photosensitive drum 120 when the printer is idle can effectively reduce the caking of toner between the developing roller and the photosensitive drum 120, thereby affecting the printing quality.

[0037] As shown in Figure 4 , the abutting member includes an abutting portion 141, which is arranged between the moving receiving member and the force applying component; when the force applying component is in the separation state, the abutting portion 141 moves together with the moving receiving member along the second direction to separate the developing roller and the photosensitive drum 120; when the force applying component is in the neutral state, the abutting portion 141 can maintain the spacing between the moving receiving member and the force applying component to keep the developing roller and the photosensitive drum 120 separated; when the force applying component is in the separation state, the force applying component moves towards the second direction, pushing the abutting portion 141 and the moving receiving member together to move towards the second direction, thereby driving the entire moving part to move, so that the developing roller and the photosensitive drum 120 are separated; after the developing roller and the photosensitive drum 120 are separated, the force applying component enters the neutral state, and in the embodiment, the abutting portion 141 of the developing cartridge abuts between the moving receiving member and the force applying component, which can maintain the spacing between the force applying component and the moving receiving member, so that the developing roller and the photosensitive drum 120 can also be kept in a separated state; before printing, the force applying component enters the printing state, at which time the force applying component moves towards the opposite direction of the second direction under the driving force of the reset mechanism, the abutting member loses abutment, and the moving receiving member and the abutting member move together towards the opposite direction of the second direction, at which time the moving part moves to the position where the developing roller and the photosensitive drum 120 are in contact, and printing starts.

[0038] As shown in Figure 6 , Figure 7As shown, the base 100 is provided with a limiting groove in the second direction, and the abutting member further comprises a second limiting portion 143 fixedly connected with the abutting portion 141, and the second limiting portion 143 is in sliding cooperation with the limiting groove; wherein the limiting groove can provide the entire abutting member including the abutting portion 141 and the second limiting portion 143 with limiting in the second direction, so that the abutting member can only move in the second direction relative to the base 100.

[0039] As shown in the drawings, Figure 4 the abutting member further comprises a first identifying portion 142 fixedly connected with the abutting portion 141, and the first identifying portion 142 can make the force applying member move in the third direction; when the developing cartridge is installed on the printer, the force applying member abuts against the first identifying portion 142, at this time the force applying member will move in the third direction and then generate a signal that can make the printer correctly identify the developing cartridge, so as to ensure the normal operation of the printer; it can be understood that, in the perspective of Figure 7 , the force applying member extends in the positive direction of the third direction, and the force applying member can move in the third direction relative to the printer, when the force applying member moves in the third direction relative to the printer, a signal can be sent to the printer, so that the printer correctly identifies the developing cartridge; it should be noted that the movement in the third direction herein can be forward movement or reverse movement in the third direction.

[0040] In order to ensure the strength of the entire abutting member, the abutting member is an integral forming member, that is, the abutting portion 141, the second limiting portion 143 and the first identifying portion 142 are integrally formed.

[0041] As shown in the drawings, Figure 4 the developing cartridge further comprises a second identifying portion 111 arranged on the base 100, and the second identifying portion 111 is located at the rear side of the abutting portion 141 in the second direction, when the force applying member is in the printing state, the second identifying portion 111 can make the force applying member move in the third direction; wherein the second identifying portion 111 has an inclined surface capable of cooperating with the force applying member, when the force applying member moves in the reverse direction of the second direction, it can cooperate with the inclined surface, and then move in the third direction, so that the printer correctly identifies the developing cartridge and normally prints.

[0042] As shown in the drawings, Figures 5 to 7The developing cartridge also includes a first side cover 110 disposed at one end of the base 100 along a first direction, a second identification part 111 integrally formed with the first side cover 110, and a movable part rotatably connected to the first side cover 110; wherein, the first side cover 110 is fixedly connected to the base 100, and the photosensitive drum 120 is rotatably disposed on the first support part 112 on the first side cover 110, and one end of the photosensitive drum 120 is also provided with a power receiving component for transmitting the torque transmitted from the printer to the photosensitive drum 120, so that the photosensitive drum 120 can rotate normally during printing, and the integral formation of the second identification part 111 with the first side cover 110 can effectively ensure the overall strength of the first side cover 110 and the second identification part 111.

[0043] Specifically, the movable part includes a first support 220 rotatably mounted on the first side cover 110, a movable receiver fixedly connected to the first support 220, a developing roller rotatably mounted on the first support 220, and a photosensitive drum 120 rotatably mounted on the first side cover 110. The first support 220 can rotate relative to the base 100 until the developing roller and the photosensitive drum 120 contact or separate. Specifically, the movable part includes a toner cartridge 210 and a developing roller, both of which are mounted on the first support 220. When the first support 220 rotates relative to the first side cover 110, the developing roller and the photosensitive drum 120 can separate or contact. A power receiver is also provided on the first support 220. This power receiver is coaxial with the rotation axis of the first support 220 relative to the first side cover 110. This power receiver transmits the torque from the printer to the developing roller through a gear set, and the position of the power receiver does not change with the rotation of the first support 220.

[0044] like Figure 5 As shown, a first limiting part 113 is provided on the first side cover 110, and the first support seat 220 cooperates with the first limiting part 113; specifically, the first limiting part 113 includes a portion of an arc track, and the first support seat 220 cooperates with this portion of the arc track. The center of this portion of the arc track coincides with the axis of rotation of the first support seat 220 relative to the first side cover 110, which can provide rotational limitation for the first support seat 220; it should be noted that... Figure 4 and Figure 7 The displayed perspectives are different, in Figure 4 The second direction seen from the perspective of Figure 7 The second direction seen from one's perspective is the opposite.

[0045] like Figure 4As shown, the moving receiving member is arranged at the edge position of the first supporting seat 220, and when the first supporting seat 220 rotates relative to the first side cover 110, the moving receiving member moves along a small circular arc track, and since the arc length of the small circular arc track is short and the moving receiving member is far away from the rotating center, the moving receiving member can be regarded as moving linearly along the second direction.

[0046] After the developing cartridge in the embodiment is installed in the printer, the printer drives the developing cartridge to image in detail, and the related prior art with the publication number CN101371202A can be referred to.

[0047] The embodiments of the utility model are explained in detail in combination with the drawings above, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A separable developing cartridge, characterized by, The application relates to a developing device for a printer, comprising: a base (100) provided with a photosensitive drum (120); a moving part movably arranged on the base (100), the moving part being provided with a developing roller, and the moving part being capable of moving relative to the base (100) to make the photosensitive drum (120) contact or separate from the developing roller; a moving receiving member arranged on the moving part, the moving receiving member being used for receiving power from a force applying component of a printer to drive the moving part to move relative to the base (100) to make the photosensitive drum (120) contact or separate from the developing roller; an abutting member movably arranged on the base (100); when the force applying component is in a separation state, the abutting member moves together with the moving receiving member to make the developing roller and the photosensitive drum (120) separate; when the force applying component is in a neutral state, the abutting member can keep the distance between the moving receiving member and the force applying component to make the developing roller and the photosensitive drum (120) keep separated.

2. The separable development cartridge of claim 1, wherein, The abutting member comprises an abutting part (141), the abutting part (141) is arranged between the moving receiving member and the force applying component; when the force applying component is in the separation state, the abutting part (141) moves together with the moving receiving member along a second direction to make the developing roller and the photosensitive drum (120) separate; when the force applying component is in the neutral state, the abutting part (141) can keep the distance between the moving receiving member and the force applying component to make the developing roller and the photosensitive drum (120) keep separated.

3. The separable development cartridge of claim 2, wherein, A limiting groove is arranged on the base (100) along the second direction, the abutting member further comprises a second limiting part (143) fixedly connected with the abutting part (141), and the second limiting part (143) is in sliding cooperation with the limiting groove.

4. The separable development cartridge of claim 2, wherein, The abutting member further comprises a first identifying part (142) fixedly connected with the abutting part (141), and the first identifying part (142) can make the force applying component move along a third direction.

5. The separable development cartridge of claim 4, wherein, The abutting member is an integral forming member.

6. The separable development cartridge of claim 2, wherein, The application further relates to a developing device for a printer, comprising: a second identifying part (111) arranged on the base (100), the second identifying part (111) is located at the rear side of the abutting part (141) along the second direction, and when the force applying component is in a printing state, the second identifying part (111) can make the force applying component move along the third direction.

7. The separable development cartridge of claim 6, wherein, A first edge cover (110) is arranged at one end of the base (100) along a first direction, the second identifying part (111) is integrally formed with the first edge cover (110), and the moving part is rotationally connected with the first edge cover (110).

8. The separable development cartridge of claim 7, wherein, The moving part comprises a first supporting seat (220) rotatably arranged on the first side cover (110), the moving receiving member is fixedly connected with the first supporting seat (220), the developing roller is rotatably arranged on the first supporting seat (220), the photosensitive drum (120) is rotatably arranged on the first side cover (110), and the first supporting seat (220) can rotate relative to the base (100) to contact or separate the developing roller and the photosensitive drum (120).

9. The separable development cartridge of claim 8, wherein, The first side cover (110) is provided with a first limiting portion (113), and the first supporting seat (220) is matched with the first limiting portion (113).

10. The separable development cartridge of claim 1, wherein, Further comprising a reset mechanism, the reset mechanism provides driving force for the moving part to make the developing roller and the photosensitive drum (120) contact.

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