Processing box and imaging equipment

Abstract

The utility model provides a processing box and imaging equipment. The processing box comprises a developing part, a photosensitive assembly and an energy storage unit. The photosensitive assembly comprises a photosensitive member and a charging member. The charging part is used for charging the photosensitive part. The developing member supplies a developer to the photosensitive member. The relative positions of the developing member and the photosensitive member are fixed. The charging member has a first voltage in a non-developing state. The first voltage is smaller than a preset value. The energy storage unit is electrically connected with the charging part. At least in the non-developing state, voltage is provided for the charging part, so that the charging part is switched from the first voltage to the second voltage. The second voltage is not less than a preset value. Wherein the preset value is the minimum voltage value required by the photosensitive part to repel the developer on the developing part. According to the processing box provided by the invention, the energy storage unit is arranged on the processing box, and the energy storage unit provides the voltage for the charging part at least in the non-developing state, so that the condition that the photosensitive part is easy to adsorb a developing agent in the non-developing state is improved, and the stability and the reliability of the printing quality of the processing box are improved.

Description

Technical Field

[0001] This application relates to the field of electrophotographic imaging technology, and more particularly to a processing box and imaging device. Background Technology

[0002] In related technologies, during the developing state of the imaging device's processing cartridge, the developing element and the photosensitive element are close to each other. The developer carried by the developing element reaches the surface of the photosensitive element under the influence of the electric field force between the developing element and the photosensitive element, thereby providing the printing paper to form an image. During the non-developing state, the developing element and the photosensitive element remain close to each other, but the voltage supplied to the charging element by the imaging device is usually reduced, resulting in less charge on the photosensitive element. This makes the photosensitive element more prone to adsorbing developer from the developing element, leading to increased waste toner and affecting the print quality of the processing cartridge. Utility Model Content

[0003] In view of this, embodiments of this application aim to provide a processing cartridge and imaging device to improve the situation where the photosensitive element of the processing cartridge easily absorbs developer from the developing element when it is not in a developing state.

[0004] To achieve the above objectives, one aspect of this application provides a processing box, including:

[0005] Developed parts;

[0006] A photosensitive assembly includes a photosensitive element and a charging element. The charging element is used to charge the photosensitive element, and the developing element is used to supply developer to the photosensitive element. The relative position of the developing element and the photosensitive element is fixed. The charging element has a first voltage in a non-developing state, and the first voltage is less than a preset value.

[0007] An energy storage unit is electrically connected to the charging device to provide voltage to the charging device at least in the non-developing state, so that the charging device switches from the first voltage to a second voltage, the second voltage being not less than the preset value;

[0008] The preset value is the minimum voltage required for the photosensitive element to repel the developer on the developing element.

[0009] In some embodiments, the energy storage unit includes at least one of a capacitor, an inductor, a resistor, a transformer, a diode, and a transistor.

[0010] In some embodiments, the second voltage ranges from -1400V to -800V.

[0011] In some embodiments, the processing box includes a housing, the developing element and the photosensitive element are rotatably mounted on the housing, the energy storage unit is fixed to the housing, the processing box has a first charging component, the first charging component is electrically connected to the charging element, in the non-developing state, the charging element can obtain the first voltage from the first charging component, and the energy storage unit can start or stop charging the charging element according to the supply voltage of the first charging component.

[0012] In some embodiments, the energy storage unit is connected in series with the first charging component.

[0013] In some embodiments, the energy storage unit is connected in parallel with the first charging component.

[0014] In some embodiments, the processing cartridge has a second charging assembly electrically connected to the developing element so that the developer on the developing element can be adsorbed onto the photosensitive element, and the input terminal of the energy storage unit is electrically connected to the second charging assembly; the second charging assembly includes at least a developing electrode.

[0015] In some embodiments, the energy storage unit generates its own electricity;

[0016] Alternatively, the processing box includes a conductive element, and the input terminal of the energy storage unit is electrically connected to the imaging device through the conductive element;

[0017] Alternatively, the processing box includes a conductive element, and the input terminal of the energy storage unit is electrically connected to the external power supply of the imaging device through the conductive element.

[0018] In some embodiments, the processing cartridge includes a switching element for switching the processing cartridge between a developing state and a non-developing state, and the energy storage unit is used to start or stop charging the charging element according to the switching action of the switching element.

[0019] In some embodiments, the processing box includes a detection unit for detecting the voltage of the charging device and / or detecting the supply voltage of the first charging component to output a voltage signal, and the energy storage unit for starting or stopping charging the charging device according to the voltage signal.

[0020] Another aspect of this application provides an imaging device, including the processing box described in any of the above claims.

[0021] The processing cartridge provided in this application embodiment has an energy storage unit on it, which is electrically connected to the charging component. In this way, the energy storage unit can provide voltage to the charging component at least in the non-developing state, that is, charge the charging component, so that the charging component switches from a first voltage less than a preset value to a second voltage not less than a preset value. This improves the efficiency of air ionization by the charging component, increases the number of negative charges on the surface of the photosensitive element in the non-developing state, strengthens the electric field strength from the developing element to the photosensitive element, thereby increasing the electric field force on the developer and enhancing the repulsion force of the photosensitive element on the developer in the non-developing state. This improves the situation where the photosensitive element of the processing cartridge easily adsorbs the developer on the developing element in the non-developing state, thereby improving the stability and reliability of the printing quality of the processing cartridge. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the processing box in one embodiment of this application;

[0023] Figure 2 This is an exploded view of the processing box in one embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the photosensitive element and charging element of the processing box in one embodiment of this application;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 This is a schematic diagram of the structure of the processing box after removing the end cap in one embodiment of this application;

[0027] Figure 6 This is a circuit diagram of an energy storage unit in one embodiment of this application;

[0028] Figure 7 This is a circuit diagram of the energy storage unit in another embodiment of this application;

[0029] Figure 8 This is a circuit diagram of the energy storage unit in another embodiment of this application;

[0030] Figure 9 This is a circuit diagram of the energy storage unit in another embodiment of this application.

[0031] Explanation of reference numerals in the attached figures

[0032] 10. Processing box; 11. Developing assembly; 111. Developing element; 12. Photosensitive assembly; 121. Photosensitive element; 1211. Grounding element; 122. Charging element; 1221. Mandrel; 13. Energy storage unit; 13a. Input terminal; 13b. Output terminal; 14. Housing; 15. First charging assembly; 151. Charging element electrode; 152. Conductive steel sheet; 153. Conductive support; 154. Spring; 16. Second charging assembly; 161. Developing electrode; 17. Switching element. Detailed Implementation

[0033] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0034] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0036] In related technologies, during the developing state of the imaging device's processing cartridge, the developing element and the photosensitive element are close to each other. The developer carried by the developing element reaches the surface of the photosensitive element under the influence of the electric field force between the developing element and the photosensitive element, thereby providing the printing paper to form an image. During the non-developing state, the developing element and the photosensitive element remain close to each other, but the voltage supplied to the charging element by the imaging device is usually reduced, resulting in less charge on the photosensitive element. This makes the photosensitive element more prone to adsorbing toner from the developing element, leading to increased waste toner and affecting the printing quality of the processing cartridge.

[0037] Based on the above, a first aspect of this application provides a processing box 10. Please refer to... Figures 1 to 9The processing cartridge 10 includes a developing element 111, a photosensitive assembly 12, and an energy storage unit 13. The photosensitive assembly 12 includes a photosensitive element 121 and a charging element 122. The charging element 122 is used to charge the photosensitive element 121. The developing element 111 is used to supply developer to the photosensitive element 121. The relative positions of the developing element 111 and the photosensitive element 121 are fixed. The charging element 122 has a first voltage in a non-developing state. The first voltage is less than a preset value. The energy storage unit 13 is electrically connected to the charging element 122 to provide voltage to the charging element 122, at least in the non-developing state, so that the charging element 122 switches from the first voltage to a second voltage. The second voltage is not less than a preset value. The preset value is the minimum voltage required for the photosensitive element 121 to repel developer on the developing element 111.

[0038] It should be noted that the processing box 10 in this application is applied to imaging devices, which can be any type of imaging device such as printers, copiers, and fax machines.

[0039] This application uses a laser printer as an example to illustrate the embodiments.

[0040] It should be noted that the developing element 111 and the photosensitive element 121 are cylindrical and can rotate around their own central axis respectively.

[0041] For example, the developing element 111 is a developing roller.

[0042] It should be noted that the fixed relative position of the developing element 111 and the photosensitive element 121 means that the relative position of the developing element 111 and the photosensitive element 121 will not change. That is, regardless of whether the processing cartridge 10 is in the developing state or the non-developing state, the position of the developing element 111 and the photosensitive element 121 is determined, and the developing element 111 and the photosensitive element 121 can only rotate around their own central axis.

[0043] It is understandable that the relative positions of the developing element 111 and the photosensitive element 121 are fixed, the developing element 111 and the photosensitive element 121 can be in contact with each other, and the developing element 111 and the photosensitive element 121 can also have a certain installation gap.

[0044] For example, depending on the development method of the processing cartridge 10, it can be divided into a contact development processing cartridge 10 and a skip development processing cartridge 10. In a contact development processing cartridge 10, the developing element 111 and the photosensitive element 121 are in contact with each other during the development process; in a skip development processing cartridge 10, the developing element 111 and the photosensitive element 121 are spaced apart by a predetermined gap during the development process. In both contact development and skip development, the relative positions of the developing element 111 and the photosensitive element 121 remain unchanged.

[0045] In the processing box 10 of this application embodiment, when the processing box 10 stops developing, that is, in a non-developing state, the developing element 111 and the photosensitive element 121 still remain in contact with each other or are separated by a predetermined gap. That is, the developing element 111 and the photosensitive element 121 always maintain a fixed relative position during the process of the processing box 10 developing or not developing.

[0046] It should be noted that when the processing cartridge 10 is performing the developing operation, the developing element 111 and the photosensitive element 121 always rotate around their own central axis; when the developing operation is stopped, the developing element 111 and the photosensitive element 121 can still rotate around their own central axis.

[0047] For example, the charging element 122 receives power from the imaging device through the charging element electrode 151. When the processing cartridge 10 is performing a developing operation, the potential applied to the charging element 122 by the imaging device is higher than the potential applied to the developing element 111 by the imaging device.

[0048] The charging element 122 is used to charge the photosensitive element 121. The charging element 122 can be a charging roller that rolls in contact with the photosensitive element 121, or a corona wire that does not contact the photosensitive element 121.

[0049] This application describes an embodiment using a charging roller as an example of a charging component 122.

[0050] It should be noted that before the printer performs the developing process, the charging roller needs to charge the photosensitive element 121, so that the surface of the photosensitive element 121 carries a uniform negative charge throughout the developing process. When the printer receives a print job, the laser emitter emits a laser to irradiate the outer surface coating of the photosensitive element 121. The part of the outer surface coating of the photosensitive element 121 that is irradiated by the laser becomes a conductor, and a large amount of negative charge flows away from the grounding element 1211 set on the photosensitive element 121, causing the voltage of the laser-irradiated part to drop and forming a latent image of the printed image. The outer surface coating of the photosensitive element 121 that is not irradiated by the laser still retains a large amount of negative charge. Immediately afterwards, the photosensitive element 121 comes into contact with or is separated from the developing element 111 by a predetermined gap. The developer on the developing element 111 is negatively charged, and its voltage value is greater than the voltage value of the laser-irradiated part of the photosensitive element 121, but less than the voltage value of the unirradiated part of the photosensitive element 121. In this way, an electric field can be formed between the photosensitive element 121 and the developing element 111, respectively, from the laser-irradiated part of the photosensitive element 121 to the developing element 111 and from the developing element 111 to the unirradiated part of the photosensitive element 121. Based on the principle that the direction of the force on the negative charge is opposite to the direction of the electric field, the negatively charged developer is subjected to a force (electric field force) opposite to the direction of the electric field. The unirradiated part of the photosensitive element 121 repels the developer on the developing element 111, while the laser-irradiated part of the photosensitive element 121 adsorbs the developer on the developing element 111, thereby forming an image on the outer surface of the photosensitive element 121. The image is then printed onto printing paper by a transfer roller.

[0051] It should be noted that the charging roller charges the photosensitive element 121 by ionizing the air and simultaneously rolling into contact with the photosensitive element 121, so that a large number of negative charges are uniformly attached to the outer surface of the photosensitive element 121.

[0052] For example, the developer may include toner.

[0053] In this embodiment, "the first voltage is less than a preset value" and "the second voltage is not less than a preset value" both refer to a comparison between absolute values; that is, the absolute value of the first voltage is less than the absolute value of the preset value, and the absolute value of the second voltage is not less than the absolute value of the preset value.

[0054] All voltage comparisons in this application are based on absolute values, i.e., voltage amplitude.

[0055] The charging element 122 has a first voltage in the non-developing state, which is less than a preset value. This means that, normally, the imaging device provides a voltage higher than the preset value to the charging element 122 in the developing state, so that the surface of the photosensitive element 121 has enough negative charge to repel the developer on the developing element 111, thereby improving the situation where the developer is adsorbed onto the part of the photosensitive element 121 that is not irradiated by the laser. However, in the non-developing state, the imaging device reduces the power input to the charging element 122, so that the first voltage of the charging element 122 in the non-developing state is less than the preset value. The charging element 122 is difficult to ionize the air, so there are fewer negative charges on the surface of the photosensitive element 121, which reduces the repulsion force of the photosensitive element 121 against the developer, and the photosensitive element 121 can easily adsorb the developer.

[0056] It should be noted that the preset values ​​vary depending on the imaging device.

[0057] For example, the preset value can be -800V (Volt), where the negative value is relative to the grounding point of the imaging device, and the preset value is lower than 800V of the imaging device grounding point.

[0058] The magnitude of the voltage is relative to the selected reference. When the actual voltage is lower than the reference voltage, the voltage value is negative. Another case: when the selected voltage reference direction is opposite to the current reference direction, the reference voltage is the negative of the actual voltage.

[0059] In laser printers, the photosensitive element is grounded during laser printing. The charging roller evenly charges the surface of the photosensitive element with a negative charge, resulting in a negative high voltage on the photosensitive element. This makes the potential difference between the surface of the photosensitive element and the grounding point negative, and the negative charge on the surface of the photosensitive element remains on the surface of the photosensitive element and does not flow away from the grounding point. Only when the surface of the photosensitive element irradiated by the laser becomes a conductor will this part of the surface charge flow away from the grounding point, ensuring print quality and stability. Therefore, laser printers typically use negative voltage.

[0060] It should be noted that the energy storage unit 13 can be located inside or outside the processing box 10.

[0061] The connection between the energy storage unit 13 and the housing 14 of the processing box 10 can be by bonding, snap-fitting, or by fasteners, etc.

[0062] The energy storage unit 13 provides voltage to the charging unit 122 at least in the non-developing state. That is, the energy storage unit 13 can charge the charging unit 122 only in the non-developing state, or it can charge the charging unit 122 in both the non-developing and developing states.

[0063] The energy storage unit 13 can detect the voltage on the charging component 122 to determine whether the charging component 122 needs to be charged, and thus selectively charge the charging component 122.

[0064] The voltage provided by the energy storage unit 13 to the charging component 122 is actually the difference between the second voltage and the first voltage.

[0065] It should be noted that the energy storage unit 13 is a component with energy storage function, which stores a certain amount of electrical energy and can discharge to the outside. The discharge of the energy storage unit 13 is to charge the charging component 122.

[0066] The processing cartridge 10 provided in this application embodiment has an energy storage unit 13 provided on it. The energy storage unit 13 is electrically connected to the charging component 122. In this way, the energy storage unit 13 can provide voltage to the charging component 122 at least in the non-developing state, that is, charge the charging component 122, so that the charging component 122 switches from a first voltage less than a preset value to a second voltage not less than a preset value. This improves the efficiency of the charging component 122 in ionizing air, increases the number of negative charges on the surface of the photosensitive element 121 in the non-developing state, strengthens the electric field strength from the developing element 111 to the photosensitive element 121, thereby increasing the electric field force on the developer. This enhances the repulsion force of the photosensitive element 121 on the developer in the non-developing state, improves the situation where the photosensitive element 121 of the processing cartridge 10 easily adsorbs the developer on the developing element 111 in the non-developing state, and thus improves the stability and reliability of the printing quality of the processing cartridge 10.

[0067] In some embodiments, the energy storage unit 13 includes at least one of a capacitor, an inductor, a resistor, a transformer, a diode, and a transistor.

[0068] Among them, a capacitor is a basic linear electronic component that can store electrical energy and perform charging and discharging.

[0069] An inductor, generally referring to an inductor device, is a component that converts electrical energy into magnetic energy and stores it, and has the function of resisting changes in the current flowing through it. The structure of an inductor is similar to that of a transformer, but it has only one winding.

[0070] A resistor is an electronic component that impedes the flow of electric current.

[0071] A diode is a semiconductor device that conducts electricity in one direction only. When a forward voltage is applied between the two terminals of a diode, the diode conducts; when a reverse voltage is applied, the diode is cut off. The conduction and cutoff of a diode are equivalent to the switching on and off of a switch.

[0072] For example, the diode is a Zener diode.

[0073] A Zener diode, also known as a voltage regulator, is a semiconductor device that has a high resistance up to the critical reverse breakdown voltage. It is mainly used as a voltage regulator or voltage reference element.

[0074] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are a primary coil, a secondary coil, and an iron core (magnetic core). Its main functions include voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization (magnetic saturation transformer).

[0075] For example, the energy storage unit 13 includes a transformer, which can boost the lower voltage input to the energy storage unit 13 through the transformer and output a voltage higher than a preset value to the charging element 122, thereby causing the charging element 122 to switch from a first voltage to a second voltage.

[0076] A transistor is a semiconductor device that controls current. Its function is to amplify weak signals into electrical signals with larger amplitudes, and it is also used as a contactless switch.

[0077] For example, the transistor can be an electronic transistor, a bipolar transistor, a J-type field-effect transistor, a metal-oxide-semiconductor field-effect transistor, or a V-groove field-effect transistor, etc.

[0078] The energy storage unit 13 includes at least one of capacitors, inductors, resistors, transformers, diodes, and transistors. This means that the energy storage unit 13 can be composed of one or more of these devices, without any specific limitation.

[0079] The "multiple" mentioned in the embodiments of this application refers to two or more types.

[0080] Here, the energy storage unit 13 includes at least one of a capacitor, inductor, resistor, transformer, diode, and transistor, thereby enabling the energy storage unit 13 to discharge and provide voltage to the charging device 122.

[0081] In some embodiments, the second voltage ranges from -1400V to -800V.

[0082] The negative value here is relative to the grounding point of the imaging device; the second voltage value is 800V to 1400V lower than the grounding point of the imaging device.

[0083] For example, the second voltage is -1400V, -1300V, -1200V, -1100V, -1000V, -900V, or -800V, etc.

[0084] Thus, by setting the second voltage to -1400V to -800V, the charging component 122 of the processing cartridge 10 has sufficient voltage to ionize the air when the processing cartridge 10 is in a non-developing state, so that the surface of the photosensitive element 121 still retains a large amount of negative charge. This improves the situation where the photosensitive element 121 of the processing cartridge 10 easily adsorbs the developer on the developing element 111 when the processing cartridge 10 is in a non-developing state, thereby improving the stability and reliability of the printing quality of the processing cartridge 10.

[0085] In some embodiments, please refer to Figures 1 to 5 The processing cartridge 10 includes a housing 14. A developing element 111 and a photosensitive element 121 are rotatably mounted on the housing 14. An energy storage unit 13 is fixed to the housing 14. The processing cartridge 10 has a first charging assembly 15. The first charging assembly 15 is electrically connected to the charging element 122. In the non-developing state, the charging element 122 can obtain a first voltage from the first charging assembly 15, and the energy storage unit 13 can start or stop charging the charging element 122 according to the supply voltage of the first charging assembly 15.

[0086] The processing cartridge 10 includes a housing 14, which provides mounting points for other components of the processing cartridge 10 and protects at least the developing element 111 and the photosensitive element 121.

[0087] The energy storage unit 13 is fixed to the housing 14. It can be fixed outside the housing 14, or it can be fixed inside the housing 14. It can also be partially located outside the housing 14 and partially located inside the housing 14. There are no restrictions here.

[0088] The first charging component 15 is electrically connected to the charging element 122, that is, the first charging component 15 is used to guide the electricity of the imaging device to the charging element 122.

[0089] In the non-developing state, the charging component 122 can obtain the first voltage from the first charging component 15. This means that in the non-developing state, due to the settings of the imaging device, the first voltage provided by the imaging device to the charging component 122 through the first charging component 15 is lower than a preset value. In other words, the voltage provided by the imaging device to the charging component 122 in the non-developing state will be reduced and lower than the voltage provided to the charging component 122 in the developing state.

[0090] In the non-developing state, the energy storage unit 13 can start or stop charging the charging component 122 according to the supply voltage of the first charging component 15. Specifically, if the energy storage unit 13 detects that the supply voltage of the first charging component 15 is not less than a preset value, the energy storage unit 13 can stop providing charging to the charging component 122; if the energy storage unit 13 detects that the supply voltage of the first charging component 15 is lower than the preset value, the energy storage unit 13 starts and charges the charging component 122, thereby maintaining the voltage on the charging component 122 within the range of the second voltage.

[0091] In this embodiment, the energy storage unit 13 starts or stops charging the charging component 122 according to the power supply voltage of the first charging component 15, so that the energy storage unit 13 can be turned off when the power supply voltage of the first charging component 15 is sufficient, thereby reducing the working time of the energy storage unit 13, thereby improving the service life of the energy storage unit 13 and improving the reliability of the operation of the energy storage unit 13.

[0092] In some embodiments, please refer to Figure 6 The energy storage unit 13 is connected in series with the first charging component 15.

[0093] The energy storage unit 13 is connected in series with the first charging component 15, including the case where the energy storage unit 13 is connected in series inside the first charging component 15, and the case where it is connected in series at both ends of the first charging component 15, which is not limited here.

[0094] For example, the first charging component 15 includes at least a charging electrode 151, and the input terminal 13a of the energy storage unit 13 is electrically connected to the charging power supply through the charging electrode 151.

[0095] The output terminal 13b of the energy storage unit 13 can be directly or indirectly connected to the charging component 122.

[0096] For example, one end of the charging electrode 151 is electrically connected to the power supply of the charging component 122 of the imaging device, and the other end is electrically connected to the input terminal 13a of the energy storage unit 13. Here, the output terminal 13b of the energy storage unit 13 is not directly connected to the charging component 122, but is connected in series within the first charging assembly 15.

[0097] Thus, by connecting the energy storage unit 13 in series with the first charging component 15, the first charging component 15 can charge the charging element 122 while simultaneously charging and storing energy in the energy storage unit 13 during the developing state. During the non-developing state, the voltage provided by the first charging component 15 to the charging element 122 decreases, and the energy storage unit 13 discharges from the charging element 122, releasing the stored electrical energy. This achieves the charging and discharging of the energy storage unit 13. At the same time, the setup and connection method of the energy storage unit 13 are simpler and more reliable, reducing the space occupied by the energy storage unit 13 and its electrical connection components.

[0098] For example, please refer to Figure 4 and Figure 5The first charging component 15 also includes a conductive steel sheet 152, a conductive support 153, and a spring 154. The charging component 122 is a charging roller, which includes a spindle 1221. The charging component electrode 151 is electrically connected to the input terminal 13a of the energy storage unit 13. One end of the conductive steel sheet 152 is electrically connected to the output terminal 13b of the energy storage unit 13, and the other end is connected to the spring 154. The other end of the spring 154 is sleeved on a portion of the conductive support 153. The conductive support 153 is electrically connected to the spindle 1221. The processing box 10 applies a certain force to the charging roller through the spring 154, so that the charging roller keeps in contact with the photosensitive element 121.

[0099] In some embodiments, please refer to Figure 2 ,as well as Figures 7 to 9 The energy storage unit 13 is connected in parallel with the first charging component 15.

[0100] It should be noted that the processing cartridge 10 includes a developing assembly 11, which includes a developing element 111 and a powder feeding element. The powder feeding element is used to supply developer to the developing element 111. The powder feeding element can be powered from the imaging device via a powder feeding electrode or via a developing electrode 161.

[0101] The energy storage unit 13 is connected in parallel with the first charging component 15. That is, the input terminal 13a of the energy storage unit 13 can draw power from other power sources on the imaging device besides the power supply of the charging component, such as the developing electrode 161, the powder feeding electrode, etc., or it can charge the charging component 122 by using the electrical energy pre-stored in its own body without drawing power from the outside.

[0102] In some embodiments, please refer to Figure 1 and Figure 8 The processing cartridge 10 has a second charging assembly 16. The second charging assembly 16 is electrically connected to the developing element 111 so that the developer on the developing element 111 can be adsorbed onto the photosensitive element 121. The input terminal 13a of the energy storage unit 13 is electrically connected to the second charging assembly 16. The second charging assembly 16 includes at least a developing electrode 161.

[0103] The developing element 111 is electrically connected to the power supply of the developing element through the second charging component 16, thereby providing a certain voltage to the developing element 111, so that the developer adheres to the developing element 111, waiting for the photosensitive element 121 to absorb it.

[0104] For example, the second charging component 16 provides a voltage of -300V to the developing element 111.

[0105] The negative value here is relative to the grounding point of the imaging device. The voltage value provided by the second charging component 16 to the developing element 111 is 300V lower than the grounding point of the imaging device.

[0106] It should be noted that in this embodiment, the energy storage unit 13 and the first charging component 15 are connected in parallel.

[0107] For example, the energy storage unit 13 can be electrically connected to the developing element 111 in the imaging device via the developing electrode 161.

[0108] The input terminal 13a of the energy storage unit 13 is electrically connected to the second charging component 16, thereby enabling the energy storage unit 13 to store energy by providing power to the developing electrode 161 through the imaging device.

[0109] In some embodiments, please refer to Figure 7 Energy storage unit 13 generates its own electricity.

[0110] In other words, the energy storage unit 13 has its own internal power supply.

[0111] For example, the energy storage unit 13 is provided with a battery that can store a certain amount of electricity and release electrical energy to the charging unit 122 for charging when needed.

[0112] In this embodiment, the energy storage unit 13 may or may not have an input terminal 13a. When there is no input terminal 13a, the energy storage unit 13 can only output electrical energy through the output terminal 13b. When there is an input terminal 13a, the energy storage unit 13 can be charged through the input terminal 13a.

[0113] In other embodiments, please refer to Figure 9 The processing box 10 includes a conductive element, and the input terminal 13a of the energy storage unit 13 is electrically connected to the imaging device through the conductive element.

[0114] The conductive component can be a cable or a structural component with conductive function, such as a metal sheet or a metal bracket.

[0115] In this embodiment, the input terminal 13a of the energy storage unit 13 can draw power from a power source other than the power source of the charging component in the imaging device through a conductive element.

[0116] In some other embodiments, please refer to Figure 9 The processing box 10 includes a conductive element, and the input terminal 13a of the energy storage unit 13 is electrically connected to a power source outside the imaging device through the conductive element.

[0117] In other words, the input terminal 13a of the energy storage unit 13 can also draw power from a power source outside the imaging device, thereby increasing the charging source of the energy storage unit 13 and improving the reliability of the energy storage unit 13.

[0118] In some embodiments, please refer to Figure 1 and Figure 2The processing cartridge 10 includes a switching element 17. The switching element 17 is used to switch the processing cartridge 10 between a developing state and a non-developing state. The energy storage unit 13 is used to start or stop charging the charging unit 122 according to the switching action of the switching element 17.

[0119] It should be noted that in related technologies, imaging devices typically switch from developing state to non-developing state by toggling the switching element 17 located on the processing cartridge 10, thereby driving the separation of the developing element 111 and the photosensitive element 121 on the processing cartridge 10, preventing the developer on the developing element 111 from adhering to the photosensitive element 121, which has less negative charge due to the reduced voltage of the charging roller.

[0120] In this embodiment, the switching element 17 can be used as a reference point for starting and stopping the energy storage unit 13. The energy storage unit 13 can detect the switching action of the switching element 17, and thus start or stop the energy storage unit 13 to charge the charging element 122 according to the action of the switching element 17.

[0121] In some embodiments, the processing box 10 includes a detection unit. The detection unit is used to detect the voltage of the charging component 122 and / or detect the supply voltage of the first charging assembly 15, so as to output a voltage signal. The energy storage unit 13 is used to start or stop charging the charging component 122 according to the voltage signal.

[0122] It should be noted that the detection unit can be located inside or outside the energy storage unit 13.

[0123] The detection unit can detect the power supply voltage of the charging component 122, the power supply voltage of the first charging component 15, or both.

[0124] The energy storage unit 13 can be turned on or off according to the voltage signal output by the detection unit to selectively charge the charging component 122, thereby reducing the interference of other circuit currents in the processing box 10 on the energy storage unit 13 and increasing the reliability of the control of the energy storage unit 13.

[0125] For example, the detection unit can be a voltage sensor.

[0126] A second aspect of this application provides an imaging device, including the processing box 10 provided in any embodiment of this application.

[0127] The imaging device provided in this application embodiment provides an energy storage unit 13 on the processing cartridge 10, which is electrically connected to the charging component 122. Thus, the energy storage unit 13 can provide voltage to the charging component 122 at least in the non-developing state, i.e., charge the charging component 122. This allows the charging component 122 to switch from a first voltage less than a preset value to a second voltage not less than a preset value, thereby improving the efficiency of air ionization by the charging component 122. This increases the number of negative charges on the surface of the photosensitive element 121 in the non-developing state, strengthens the electric field strength from the developing element 111 to the photosensitive element 121, thereby increasing the electric field force on the developer. This enhances the repulsive force of the photosensitive element 121 to the developer in the non-developing state, improving the situation where the photosensitive element 121 of the processing cartridge 10 easily adsorbs the developer on the developing element 111 in the non-developing state, and further improving the stability and reliability of the printing quality of the processing cartridge 10.

[0128] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0129] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A processing box, used in an imaging device, characterized in that, include: Developed parts; A photosensitive assembly includes a photosensitive element and a charging element. The charging element is used to charge the photosensitive element, and the developing element is used to supply developer to the photosensitive element. The relative position of the developing element and the photosensitive element is fixed. The charging element has a first voltage in a non-developing state, and the first voltage is less than a preset value. An energy storage unit is electrically connected to the charging device to provide voltage to the charging device at least in the non-developing state, so that the charging device switches from the first voltage to a second voltage, the second voltage being not less than the preset value; The preset value is the minimum voltage required for the photosensitive element to repel the developer on the developing element.

2. The processing box according to claim 1, characterized in that, The energy storage unit includes at least one of a capacitor, an inductor, a resistor, a transformer, a diode, and a transistor.

3. The processing box according to claim 1, characterized in that, The second voltage ranges from -1400V to -800V.

4. The processing box according to claim 1, characterized in that, The processing box includes a housing, the developing element and the photosensitive element are rotatably mounted on the housing, the energy storage unit is fixed on the housing, the processing box has a first charging component, the first charging component is electrically connected to the charging element, in the non-developing state, the charging element can obtain the first voltage from the first charging component, and the energy storage unit can start or stop charging the charging element according to the supply voltage of the first charging component.

5. The processing box according to claim 4, characterized in that, The energy storage unit is connected in series with the first charging component.

6. The processing box according to claim 4, characterized in that, The energy storage unit is connected in parallel with the first charging component.

7. The processing box according to claim 1, characterized in that, The processing box has a second charging component, which is electrically connected to the developing element so that the developer on the developing element can be adsorbed onto the photosensitive element. The input terminal of the energy storage unit is electrically connected to the second charging component. The second charging component includes at least a developing electrode.

8. The processing box according to claim 1, characterized in that, The energy storage unit generates its own electricity; Alternatively, the processing box includes a conductive element, and the input terminal of the energy storage unit is electrically connected to the imaging device through the conductive element; Alternatively, the processing box includes a conductive element, and the input terminal of the energy storage unit is electrically connected to the external power supply of the imaging device through the conductive element.

9. The processing box according to claim 4, characterized in that, The processing cartridge includes a switching element for switching the processing cartridge between a developing state and a non-developing state, and the energy storage unit is used to start or stop charging the charging element according to the switching action of the switching element.

10. The processing box according to claim 4, characterized in that, The processing box includes a detection unit, which is used to detect the voltage of the charging device and / or detect the supply voltage of the first charging component to output a voltage signal. The energy storage unit is used to start or stop charging the charging device according to the voltage signal.

11. An imaging device, characterized in that, Includes the processing box as described in any one of claims 1-10.

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