CN217879992U - Processing box - Google Patents

Abstract

The utility model provides a processing box, detachably install in electronic imaging device, include: a powder hopper containing a developer; a waste toner hopper provided with a photosensitive drum, wherein the toner hopper is movable from a first position to a second position with respect to the waste toner hopper; a developing member disposed in the powder hopper; a conductive member provided on an end cap, the conductive member being electrically connected to the developing member; a capacitor electrically connected to the conductive member and electrically connected to the developing member; when the powder bin is at the second position, the conductive member is disconnected from the developing member. The utility model discloses a set up electric capacity on processing box to on transmitting electric capacity with the detection voltage that electron image device applyed on processing box, avoided causing the harm to the developer roll of processing box or send the whitewashed roller.

Description

Processing box

[ technical field ] A

The utility model relates to a laser printing field, in particular to processing box.

[ background ] A method for producing a semiconductor device

The process cartridge is a detachable part widely used in electronic image forming apparatuses. The processing box comprises a powder bin and a waste powder bin, the powder bin is internally provided with a developer, when the processing box works, the electronic imaging device can detect the residual amount of the developer in the processing box, and if the developer in the processing box is about to be consumed up, the electronic imaging device can receive a feedback signal so as to remind a user of replacing a new processing box.

Fig. 1 is a schematic view of a contact state of a process cartridge in the related art. Fig. 2 is a schematic view of a process cartridge in a separated state in the related art. As shown in fig. 1 and 2, the process cartridge includes a powder hopper 4 and a waste powder hopper 18, the powder hopper 4 contains developer and is provided with a developing roller 1 and a powder feeding roller 2, the waste powder hopper 18 is provided with a photosensitive drum 11, wherein the powder hopper 4 and the waste powder hopper 18 are connected by a spring 41, and the powder hopper 4 can rotate around a virtual shaft 40 as a center under the elastic force of the spring 41. When the process cartridge performs a developing action, the powder hopper 4 is located at the first position, i.e., the developing roller 1 and the photosensitive drum 11 are in a contact state, the powder feeding roller 2 is connected to the power supply 30 in the electrophotographic apparatus to apply a developing voltage to the process cartridge, and then the developing roller 1 supplies the developer in the powder hopper 4 onto the photosensitive drum 11 to form an electrostatic latent image.

When the electronic imaging device detects the residual amount of the developer on the process cartridge, in order to reduce the influence of the photosensitive drum 11 on the detection accuracy of the residual amount of the developer, the driving member 42 in the electronic imaging device pushes the force-receiving portion 43 on the powder bin 4, so that the powder bin 4 rotates counterclockwise around the virtual shaft 40, at this time, the powder bin 4 moves to a second position relative to the waste powder bin 18, that is, the developing roller 1 and the photosensitive drum 11 are in a separated state, at this time, the power supply 30 is electrically connected to the powder feeding roller 2, the detector 29 is electrically connected to the developing roller 1, and the electronic imaging device detects the residual amount of the developer by applying a detection signal to the powder feeding roller 2 and receiving a feedback signal from the developing roller 1 according to the capacitance values of the powder feeding roller 2 and the developing roller 1. When the developer in the powder bin 4 is sufficient, the space between the powder feeding roller 2 and the developing roller 1 is filled with the developer, the capacitance value formed by the two is relatively large, and when the developer in the powder bin 4 is insufficient, the developer between the two is less, the capacitance value formed by the two is small, so that whether the residual amount of the developer is in a sufficient state or an insufficient state is determined.

However, when the voltage applied to the process cartridge by the power supply 30 is too high, damage is easily caused to the developing roller and the powder feeding roller, and the detected remaining amount information of the developer is inaccurate, thereby affecting the normal operation of the electronic image forming apparatus.

[ Utility model ] A method for manufacturing a semiconductor device

The application relates to a processing box, which aims to solve the problem that when an electronic imaging device in the related art detects the residual quantity of a developer in the processing box, the processing box is damaged, the detected residual quantity information of the developer is inaccurate, and the normal work of the electronic imaging device is influenced.

In one aspect, the present invention provides a process cartridge detachably mountable in an electronic image forming apparatus, including: a powder hopper containing a developer; a waste toner hopper provided with a photosensitive drum, wherein the toner hopper is movable from a first position to a second position with respect to the waste toner hopper; a developing member disposed in the powder hopper; a conductive member provided on an end cap, the conductive member being electrically connected to the developing member; a capacitor electrically connected to the conductive member and electrically connected to the developing member; when the powder bin is at the second position, the conductive member is disconnected from the developing member.

Optionally, the developing member is a developing roller or a powder feeding roller.

Optionally, the process cartridge includes an electrical connector, and the developing member is electrically connected to the conductive member through the electrical connector.

Optionally, the conductive member is electrically connected to an electronic imaging device.

Optionally, the number of the conductive members is one or two.

The utility model provides a processing box is through setting up electric capacity on processing box to on transmitting electric capacity with the detection voltage that electron imaging device applyed on processing box, avoided causing the harm to the developer roll of processing box or send the whitewashed roller, accuracy when having improved electron imaging device detection processing box's developer surplus greatly.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic view showing a contact state of a process cartridge in the prior art;

FIG. 2 is a schematic view showing a state in which a process cartridge is separated in the related art;

FIG. 3 is a schematic structural view of the processing box of the present invention;

FIG. 4 is an exploded view of the processing box of the present invention;

FIG. 5 is a schematic view showing the installation of the end cap and the conductive member of the cartridge according to the present invention;

FIG. 6 is a schematic view showing a contact state of the process cartridge according to the present invention;

fig. 7 is a schematic view of the cartridge in a separated state according to the present invention.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Fig. 3 is a schematic structural diagram of the middle processing box of the present invention. Fig. 4 is an exploded view of the cartridge of the present invention. Fig. 5 is a schematic view of the installation of the end cap and the conductive member of the cartridge according to the present invention. As shown in fig. 3 to 5, the process cartridge 5 includes a cartridge body 50, a developing roller 51, a powder feeding roller 52, a photosensitive drum 53, a powder hopper 54, a waste powder hopper 55, an end cap 60, and a conductive member 70, wherein the developing roller 51 and the powder feeding roller 52 are disposed in the powder hopper 54, the photosensitive drum 53 is disposed in the waste powder hopper 55, and the conductive member 70 is disposed on the end cap 60 for contact with the detector 29 in the electrophotographic apparatus.

Specifically, one side of the box 50 is provided with a first groove 501 and a fixing column 502, and the first electric connector 31 and the second electric connector 32 are respectively mounted on the box 50 through the first groove 501 and the fixing column 502. The first electrical connector 31 includes a first contact portion 311 and a first electrical contact surface 312, wherein the first contact portion 311 is electrically connected to the developing roller 51, and the first electrical contact surface 312 is exposed to the outside through the hole 61 of the end cap 60 to be connected to the power supply 30 in the electronic image forming apparatus, thereby transmitting the developing voltage received from the electronic image forming apparatus to the developing roller 51. Second electric connector 32 includes second contact portion 321 and second electric contact surface 322, in which second contact portion 321 is electrically connected to powder feed roller 52, and second electric contact surface 322 is electrically connected to conductive member 70 provided on end cap 60, whereby powder feed roller 52 can be electrically connected to conductive member 70.

As shown in fig. 5, the end cap 60 includes a hole 61 and a second groove 62, the conductive member 70 includes a third electrical contact surface 71 and a third contact portion 72, the third contact portion 72 can be fixedly mounted on the end cap 60 through the second groove 62 and electrically connected to the second electrical contact surface 322 of the second electrical connector 32, and the third electrical contact surface 71 is exposed outside the end cap 60 to be connected to the detector 29 in the electronic imaging device.

Optionally, in order to prevent the voltage applied to the process cartridge by the electronic image forming apparatus from being too high, a capacitor (not shown in the figure) may be further disposed on the process cartridge 5, and electrical connections may be formed between the capacitor and the conductive member 70, and between the capacitor and the developing member, which are a developing roller, a powder feeding roller and other charging members disposed in the powder bin. And the capacitance and the developing member may be electrically connected by contacting the capacitance with the first electrical connector 31 and/or the second electrical connector 32 to form an electrical connection. According to one form of the present embodiment, the capacitor has a first end and a second end, the first end of the capacitor is electrically connected to the conductive member 70 and the second electrical connector 32 between the conductive member and the powder feed roller so that the first end of the capacitor can be electrically connected to the powder feed roller, and the second end of the capacitor is electrically connected to the first electrical connector 31 so that the second end of the capacitor can be electrically connected to the developing roller, and further, the capacitor can be selectively connected to the first electrical connector 31 and the conductive member 70 by wires to the first electrical connector 31 and the second electrical connector 32, respectively, in such a manner that the capacitor is prevented from affecting the developing member while the position of the capacitor in the process cartridge is not restricted.

Fig. 6 is a schematic view of the contact state of the process cartridge according to the present invention. Fig. 7 is a schematic view of the cartridge in a separated state according to the present invention. As shown in fig. 6 and 7, when the process cartridge 5 performs the developing operation, the powder hopper 54 is located at the first position, that is, the developing roller 51 and the photosensitive drum 53 are in a contact state, the power supply 30 in the electrophotographic apparatus is in contact with the third electrical contact surface 71, and the second electrical contact surface 322 is in a contact state with the third contact portion 72, so that the power supply 30 supplies power to the powder feeding roller 52, and then the powder feeding roller 52 conveys the developer in the powder hopper 54 to the developing roller 51, thereby performing the developing image formation.

When the electronic image forming apparatus detects the remaining amount of developer in the process cartridge, the powder hopper 54 moves from the first position to the second position with respect to the waste powder hopper 55, and the developing roller 51 and the photosensitive drum 53 are in a separated state, and since the second electrical connector 32 is mounted on the cartridge body 50, the second electrical connector 32 moves along with the movement of the powder hopper 54 during the movement of the powder hopper 54, and the end cap 60 is kept in a fixed state at all times during the operation of the process cartridge 5, the second electrical connector 32 is electrically disconnected from the conductive member 70 provided on the end cap 60, so that the power supply 30 cannot apply voltage to the powder feeding roller 52 any more. And one end of the capacitor on the processing box is electrically connected with the conductive part 70, and the other end is electrically connected with the developing roller 51 through the first electric connector 31, at this time, the voltage applied to the conductive part by the power supply 30 is transmitted to the capacitor, so that the powder feeding roller 52 is prevented from being damaged by high voltage, and the detector 29 is electrically connected with the first electric contact surface 312 to receive a feedback signal from the developing roller 51, so that the residual amount of the developer in the powder bin is detected.

Of course, the electrophotographic apparatus may receive the feedback signal on the powder feed roller by applying a voltage to the developing roller, so that the conductive member in this embodiment may also be electrically connected to the developing roller (not shown), and then the first end of the capacitor is electrically connected to the conductive member and the first electrical connector 31 between the conductive member and the developing roller, so that the first end of the capacitor may be electrically connected to the developing roller, and the second end of the capacitor is electrically connected to the second electrical connector 32, so that the second end of the capacitor may be electrically connected to the powder feed roller, and when the powder hopper 54 moves from the first position to the second position, the conductive member is electrically disconnected from the first electrical connector 31, i.e., from the developing roller, and at this moment, since the capacitor is electrically connected to the conductive member and the second electrical connector 32, the electrophotographic apparatus actually applies a detection voltage to the capacitor, so that the capacitor transmits the detection signal to the powder feed roller again, and finally the electrophotographic apparatus receives the feedback signal from the powder feed roller.

If it is desired to further reduce the influence of the voltage applied by the electrophotographic apparatus on the developing member, two conductive members may be provided on the end cap, one of which is simultaneously connected to the first electrical connector and one end of the capacitor and the other of which is simultaneously connected to the second electrical connector and the other end of the capacitor, and the two conductive members are simultaneously disconnected from the first electrical connector and the second electrical connector, respectively, when the process cartridge is moved from the first position to the second position, so that the electrophotographic apparatus does not conduct electricity with the developing member but forms a loop in connection with the capacitor when the process cartridge is sensed by the electrophotographic apparatus, and the applied sensing voltage is transmitted to the capacitor through the conductive members to determine the remaining amount of developer in the process cartridge. At this time, two ends of the capacitor can be respectively and fixedly connected to the two conductive parts in the form of conductive steel sheets.

Alternatively, in order to simplify the structure of the process cartridge, the process cartridge according to the present application may be configured without providing the first electrical connector and the second electrical connector, and the developing member may be directly brought into contact with the conductive member or the capacitor to form an electrical connection without affecting the above electrical connection effect.

According to the capacitor provided by the application, the capacitor can be arranged on a circuit board, and a conductive path formed by a first end and a second end of the capacitor can be realized in a mode that the circuit board is respectively electrically connected with the conductive component, the first electric connector, the second electric connector and the like.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, but not to discard the alignment restriction; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.

Claims (5)

1. A process cartridge detachably mountable to an electronic image forming apparatus, comprising:

a powder hopper containing a developer;

a waste powder bin provided with a photosensitive drum, wherein the powder bin is movable from a first position to a second position relative to the waste powder bin;

a developing member disposed in the powder hopper;

a conductive member provided on an end cap, the conductive member being electrically connected to the developing member;

a capacitor electrically connected to the conductive member and electrically connected to the developing member;

wherein the conductive member is disconnected from the developing member when the powder hopper is in the second position.

2. A process cartridge according to claim 1, wherein said developing member is a developing roller or a powder feeding roller.

3. A process cartridge according to claim 2, wherein said process cartridge includes an electrical connector, and said developing member is electrically connected to said conductive member through said electrical connector.

4. A cartridge according to claim 1, wherein said conductive member is electrically connected to an electrophotographic apparatus.

5. A cartridge according to claim 1, wherein the number of said conductive member is one or two.

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