CN219738011U - Electricity eliminating structure, consumable box and image forming device - Google Patents

Abstract

The embodiment of the utility model provides a power elimination structure, a consumable box and an image forming device. The de-electrification structure comprises at least one magnetic induction piece, wherein the magnetic induction piece is used for relatively displacing with the magnetic piece and enabling the magnetic induction piece to generate induction current; the power elimination device is electrically connected with the magnetic induction piece; the magnetic induction piece conveys the induction current to the electricity eliminating device, and the electricity eliminating device is used for eliminating electricity of the photosensitive component. The technical scheme provided by the embodiment of the utility model reduces the occupied space of the electricity eliminating structure and ensures that the electricity eliminating structure and the photosensitive component realize matching electricity eliminating.

Description

Electricity eliminating structure, consumable box and image forming device

[ field of technology ]

The embodiment of the utility model relates to the technical field of electronic imaging, in particular to a power elimination structure, a consumable box and an image forming device.

[ background Art ]

With the development of electronic imaging technology, image forming apparatuses have been widely used, and consumable cartridges are detachably mounted on the image forming apparatuses. The consumable cartridge may include a photosensitive (Optical Photoconductor, simply OPC) component, which is a photosensitive drum. The OPC member is prone to optical fatigue as the image forming apparatus is used for a longer period of time, that is, the surface of the OPC member has residual charges, and at this time, if the residual charges are not timely erased, ghost occurs during printing, resulting in poor image quality.

In order to solve the problem of ghost image in the printing process, a power-off component can be arranged in the consumable box, and residual charges on the surface of the OPC component are subjected to power-off through the power-off component. The extinction lamp of the extinction assembly in the prior art is an active extinction lamp, and the active extinction lamp needs to be additionally provided with a power supply to drive a light-emitting diode (LED) so as to occupy large space. When the photosensitive member is powered off, the image forming apparatus rotates the photosensitive member, and the rotational speed of the photosensitive member affects the power-off degree of the power-off lamp. If the illumination intensity of the extinction lamp is unreasonably set, or the rotation speed of the photosensitive member is not ideal control speed, the illumination intensity of the extinction lamp cannot be matched with the rotation speed of the photosensitive member, and excessive extinction or insufficient extinction of the photosensitive member can be caused. For example, if the rotation speed of the photosensitive member is too low, excessive power consumption of the photosensitive member by the power consumption lamp may be caused, and the photosensitive member may be subjected to light fatigue phenomena such as overcharge and overdischarge, so that the service life of the photosensitive member is shortened; if the rotation speed of the photosensitive member is too high, the charge eliminating lamp will not sufficiently eliminate the charge on the photosensitive member, and the ghost phenomenon will occur in the printed image, so as to reduce the quality of the printed image. Therefore, the extinction lamp and the photosensitive member cannot achieve matching extinction.

[ utility model ]

In view of the above, the embodiment of the utility model provides a power-eliminating structure, a consumable box and a pattern forming device, which are used for reducing the occupied space of the power-eliminating structure and enabling the power-eliminating structure and a photosensitive component to realize matching power elimination.

A first aspect provides a power cancellation structure comprising:

at least one magnetic induction element for relative displacement with the magnetic element and for generating an induced current; a kind of electronic device with high-pressure air-conditioning system

The power elimination device is electrically connected with the magnetic induction piece;

the magnetic induction piece conveys the induction current to the electricity eliminating device, and the electricity eliminating device is used for eliminating electricity of the photosensitive component.

In one possible implementation, the current eliminator is a current eliminator, and when the magnetic inductor delivers the induced current to the current eliminator, the current eliminator emits light and is used to eliminate current from the photosensitive member.

In one possible implementation manner, the electricity-eliminating structure further includes a light guide member, where the electricity-eliminating device is disposed opposite to the light guide member, and the light guide member is configured to conduct light emitted by the electricity-eliminating device to the photosensitive member and is configured to eliminate electricity.

In one possible implementation, the light guide is configured to be disposed along an axial direction of the photosensitive member.

In one possible implementation manner, the power cancellation structure further includes a lens, where the lens is located between the power cancellation device and the light guide member, the lens includes a light inlet end and a light collecting end, the lens is configured to collect light entering from the light inlet end to the light collecting end and guide out the light, the light inlet end is configured to receive light emitted from the power cancellation device, and the light collecting end is configured to guide out the light to the light guide member.

In one possible implementation manner, a reflective film is disposed on a side of the light guide away from the photosensitive member, and the reflective film is used for reflecting light.

In one possible implementation, a plurality of light guide points are disposed on a side of the light guide member, which is close to the photosensitive member, and the light guide points include protrusions and/or depressions.

In one possible implementation, the current cancellation structure further includes a driving circuit, and the magnetic induction element is electrically connected to the current cancellation device through the driving circuit.

In one possible implementation, the driving circuit includes a rectifying and filtering circuit.

In one possible implementation manner, the electromagnetic induction element further comprises a carrier, and the electromagnetic induction element and the electromagnetic cancellation element are both arranged on the carrier.

In a possible implementation manner, the carrier further comprises the driving circuit, the carrier comprises a body part and an extension part extending from the body part, the magnetic induction piece is arranged on the body part, and the driving circuit is arranged on the extension part.

In one possible implementation, the number of the magnetic induction pieces is plural, and the plural magnetic induction pieces are disposed around the center point of the body portion and are sequentially arranged along the circumferential direction of the center point of the body portion.

In one possible implementation manner, the carrier further includes a power recovery device, where the power recovery device is electrically connected to the magnetic induction element and the power cancellation device, and the magnetic induction element transmits the induced current to the power cancellation device through the power recovery device, and the power recovery device is configured to store the induced current or prevent the induced current from being transmitted to the power cancellation device when the photosensitive member does not need to perform power cancellation.

In one possible implementation, the magnetic induction element is a magnetic induction coil.

A second aspect provides a consumable cartridge for detachable mounting to an image forming apparatus, comprising: a photosensitive member and a charge dissipating structure in any possible implementation of the first aspect or the first aspect;

At least one magnetic piece is arranged on the photosensitive component or a rotating piece in transmission fit with the photosensitive component, and the magnetic induction piece and the magnetic piece are oppositely arranged and can relatively displace;

the charge eliminating device eliminates charge on the photosensitive surface of the photosensitive member.

In one possible implementation, the rotating member includes a driving member, the magnetic member is disposed on the driving member, and the driving member rotates in synchronization with the photosensitive member.

In one possible implementation, the driving component is a gear.

In one possible implementation, the magnetic member rotates about the same axis as the photosensitive member.

A third aspect provides an image forming apparatus comprising an image forming apparatus body and the consumable cartridge of the second aspect or any possible implementation of the second aspect.

A fourth aspect provides an image forming apparatus, including an image forming apparatus body and the de-energizing structure of the first aspect or any possible implementation manner of the first aspect, the magnetic induction member being provided on the image forming apparatus body; or the power elimination structure is arranged on the image forming device body.

In the technical scheme provided by the embodiment of the utility model, the induction current is generated by the relative displacement between the magnetic induction piece and the magnetic induction piece, the photosensitive component is powered off by the power consumption eliminating device through the induction current generated by the magnetic induction piece, and the power consumption eliminating device can be powered off the photosensitive component without additional power supply, so that the occupied space of a power consumption eliminating structure is reduced, the power consumption eliminating structure is simple in structure, a passive design is adopted, and external power supply is not needed; when the magnetic induction piece and the magnetic piece relatively displace, the magnetic induction piece generates induction current to drive the electricity eliminating device to eliminate electricity, so that the electricity eliminating degree of the electricity eliminating device changes along with the speed of the relative displacement of the magnetic induction piece and the magnetic piece, the matching of the speed of the relative displacement of the magnetic induction piece and the magnetic piece and the electricity eliminating degree is realized, the phenomenon that the electricity eliminating structure excessively eliminates electricity or eliminates insufficient electricity on the photosensitive component is effectively prevented, and the matching electricity eliminating structure and the photosensitive component are realized.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of a power cancellation structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the magnetic induction element and the current eliminator in FIG. 1;

fig. 3 is a schematic structural diagram of a consumable cartridge according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a driving component according to an embodiment of the present utility model;

fig. 5 is a flowchart of a power cancellation method according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of an operation principle of a power cancellation structure in an embodiment of the present utility model;

FIG. 7 is a schematic diagram illustrating the working principle of a rectifying and filtering circuit according to an embodiment of the present utility model;

FIG. 8 is a schematic structural view of another consumable cartridge according to an embodiment of the present utility model;

fig. 9 is a schematic structural diagram of another consumable cartridge according to an embodiment of the present utility model.

[ detailed description ] of the utility model

For a better understanding of the technical solution of the present utility model, the following detailed description of the embodiments of the present utility model refers to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terminology used in the embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one way of describing an association of associated objects, meaning that there may be three relationships, e.g., a and/or b, which may represent: the first and second cases exist separately, and the first and second cases exist separately. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Fig. 1 is a schematic structural diagram of an electricity eliminating structure provided by an embodiment of the present utility model, fig. 2 is a schematic structural diagram of a magnetic induction element and an electricity eliminating device in fig. 1, and fig. 3 is a schematic structural diagram of a consumable cartridge provided by an embodiment of the present utility model, where, as shown in fig. 1, fig. 2 and fig. 3, the electricity eliminating structure includes: an anechoic device 1 and at least one magnetic induction element 2. The magnetic induction element 2 is used for relatively displacing with the magnetic element 21 and enabling the magnetic induction element 2 to generate induction current; the neutralization device 1 is electrically connected with the magnetic induction element 2. The magnetic induction element 2 transmits induction current to the power cancellation device 1, and the power cancellation device 1 is used for canceling power of the photosensitive member 20.

The power cancellation device 1 may cancel the power of the photosensitive member 20 in various ways. As an alternative, the erasing device 1 may erase the photosensitive member 20 by exposing to light, specifically, the erasing device 1 is an erasing lamp, and when the magnetic induction element 2 transmits an induced current to the erasing device 1, the erasing device 1 emits light and is used to erase the photosensitive member 20. As another alternative, the current eliminator 1 may also charge the photosensitive member 20 in reverse polarity to eliminate residual charge on the photosensitive member 20, so as to achieve current elimination of the photosensitive member 20. In the embodiment of the present utility model, the power cancellation device 1 is described as an example of a power cancellation lamp.

As shown in fig. 1 and 3, the power cancellation structure further includes a light guide 301, the power cancellation device 1 is disposed opposite to the light guide 301, and the light guide 301 is configured to conduct light emitted from the power cancellation device 1 to the photosensitive member 20 and to cancel power. Wherein the light guide 301 is configured to be disposed along an axial direction of the photosensitive member 20. The light guide 301 is disposed opposite to the photosensitive surface of the photosensitive member 20, wherein, since the photosensitive member 20 is cylindrical in shape, the photosensitive surface of the photosensitive member 20 is a side surface of the cylinder. The material of the light guide 301 may include polymethyl methacrylate (polymethyl methacrylate, PMMA), polycarbonate (PC), or Polyurethane (PU). In the embodiment of the utility model, the shape of the light guide 301 can be set to be flat, so that the occupied space is reduced, and the miniaturized design of the consumable box is further realized. In the embodiment of the utility model, the light guide member 301 adopts a strip-shaped structure, that is, the light guide member 301 can be a light guide strip, and compared with the scheme adopting a light guide column in the prior art, the light guide strip is adopted to replace the light guide column, and the hole for placing the light guide column is not required to be additionally arranged on the consumable box, so that the miniaturized design of the consumable box is further realized.

As shown in fig. 1 and 3, the light guide 301 is provided with a plurality of light guide points including protrusions and/or depressions at one side thereof adjacent to the photosensitive member. The light guide point is integrally formed with the light guide 301. The light guide point is used for converting incident light into a surface light source after carrying out numerous refraction in the light guide 301, and then the light uniformly exits from one side of the light guide 301 close to the photosensitive member 20 and irradiates the surface of the photosensitive member 20, so that the light is refracted and diffused in the light guide 301 to be in a uniform light state of the surface light source, the coating on the photosensitive surface of the photosensitive member 20 is uniformly charged and discharged, and the service life of the photosensitive member 20 is prolonged. As shown in fig. 1 and 3, the power cancellation structure further includes a lens 302, where the lens 302 is located between the power cancellation device 1 and the light guide 301, the lens 302 includes a light inlet end and a light collecting end, the lens 302 is configured to collect light entering from the light inlet end to the light collecting end and guide out the light, the light inlet end is configured to receive light emitted from the power cancellation device 1, and the light collecting end is configured to guide out the light to the light guide 301. The light guide 301 guides light to irradiate the light to the photosensitive surface of the photosensitive member 20, and residual charges are uniformly guided away after the photosensitive surface of the photosensitive member 20 is irradiated with light, thereby realizing charge elimination of the residual charges on the photosensitive surface of the photosensitive member 20. In the embodiment of the utility model, the structures of the power cancellation device 1, the lens 302 and the light guide 301 can be almost completely matched, thereby preventing the light leakage phenomenon.

As shown in fig. 1 and 3, a reflective film 303 is provided on a side of the light guide 301 remote from the photosensitive member 20, the reflective film 303 being for reflecting light. The reflective film 303 may reflect light within the light guide 301 that is not directed to the photosensitive member 20, so that the light guide 301 may irradiate as much light as possible onto the photosensitive member 20, thereby enhancing the light intensity of the photosensitive surface of the photosensitive member 20. In addition, if the light of the light guide 301 overflows, abnormal exposure of the photosensitive member 20 may occur to generate a print defect, and in the embodiment of the present utility model, the reflective film 303 is disposed on one side of the light guide 301, so that the light can be reflected back to the light guide 301, and the light is effectively prevented from overflowing, thereby avoiding the print defect generated by abnormal exposure of the photosensitive member 20.

As shown in fig. 2, the power cancellation structure further includes a driving circuit 4, and the magnetic induction element 2 is electrically connected to the power cancellation device 1 through the driving circuit 4.

As shown in fig. 1, 2 and 3, the current eliminating structure further includes a carrier 3, and the magnetic induction element 2 and the current eliminating element 1 are both disposed on the carrier 3. As shown in fig. 2, the magnetic induction element 2 and the driving circuit 4 are disposed on the carrier 3, the positive phase terminal (+) and the negative phase terminal (-) of the magnetic induction element 2 are connected to the input terminal of the driving circuit 4, and the output terminal of the driving circuit 4 is connected to the current eliminator 1.

As shown in fig. 1, 2 and 3, the carrier 3 includes a body portion 31 and an extension portion 32 extending from the body portion 31, the magnetic induction element 2 is provided to the body portion 31, and the driving circuit 4 is provided to the extension portion 32. Wherein, the part structure of the extension portion 32 is disposed on the body portion 31, and another part of the extension portion 32 extends out of the body portion 31. The power cancellation device 1 is provided at one end of the extension portion 32 extending out of the body portion 31, and therefore the power cancellation device 1 is provided outside the body portion 31, and the position of the power cancellation device 1 is adjusted by adjusting the length of the extension portion 32.

As shown in fig. 2, the number of magnetic induction pieces 2 is plural, and the plural magnetic induction pieces 2 are disposed around the center point of the body portion 31 and are sequentially arranged in the circumferential direction of the center point of the body portion 31. The shape of the body portion 31 may be set according to the design requirement of the product, for example, the shape of the cross section of the body portion 31 may be circular or square, as shown in fig. 1, in the embodiment of the present utility model, in order to match the shape of the driving member of the photosensitive member 20, the shape of the cross section of the body portion 31 is circular, preferably, fig. 2 shows six magnetic induction pieces 2, which are disposed around the center point of the body portion 31 and sequentially arranged along the circumferential direction of the center point of the body portion 31. Each magnetic induction piece 2 includes a positive phase terminal (+) and a negative phase terminal (-), and the positive phase terminal (+) and the negative phase terminal (-) of each magnetic induction piece 2 are connected to the input terminal of the driving circuit 4, which should be explained: the connection lines between the positive (+) and negative (-) phase ends of the magnetic induction element 2 and the driving circuit 4 are not shown in detail in fig. 2.

As shown in fig. 1, 2 and 3, the carrier 3 is a flexible circuit board (Flexible Printed Circuit, FPC), and the body portion 31 and the extension portion 32 are both FPCs. The magnetic induction piece 2 is a magnetic induction coil, a plurality of printed circuit board (Printed Circuit Board, PCB) coils are uniformly and densely etched on the body portion 31, and the PCB coils are used as the magnetic induction coils; the drive circuit 4 can be miniaturized and attached to the extension portion 32. In the embodiment of the utility model, the flexible circuit board is adopted for the circuit board, so that the flattening design of the electric-dissipating device 1 can be realized, and the structural space of the consumable box is reduced.

As shown in fig. 2, the driving circuit 4 includes a rectifying filter circuit. The magnetic induction elements 2 may generate an induced electromotive force E, for example, the plurality of magnetic induction elements 2 may generate n induced electromotive forces including induced electromotive forces E1, E2, … …, en, where n is a positive integer. The rectification and filtering circuit rectifies and filters the induced electromotive force generated by the magnetic induction component 2 to form direct current power supply voltage, and outputs the direct current power supply voltage to the power eliminator 1, and the power eliminator 1 emits light under the drive of the direct current power supply voltage. As an alternative, the current-eliminating device 1 is an LED.

In the technical scheme of the power elimination structure provided by the embodiment of the utility model, the magnetic induction piece generates induction current through relative displacement with the magnetic piece, the power elimination device eliminates power to the photosensitive part through the induction current generated by the magnetic induction piece, and the power elimination device eliminates power to the photosensitive part without additional power supply, so that the occupied space of the power elimination structure is reduced, the power elimination structure is simple in structure, a passive design is adopted, and external power supply is not needed; when the magnetic induction piece and the magnetic piece relatively displace, the magnetic induction piece generates induction current to drive the electricity eliminating device to eliminate electricity, so that the electricity eliminating degree of the electricity eliminating device changes along with the speed of the relative displacement of the magnetic induction piece and the magnetic piece, the matching of the speed of the relative displacement of the magnetic induction piece and the magnetic piece and the electricity eliminating degree is realized, the phenomenon that the electricity eliminating device excessively eliminates electricity or eliminates insufficient electricity on the photosensitive component is effectively prevented, and the electricity eliminating device and the photosensitive component are matched.

The embodiment of the utility model provides a consumable box which is detachably mounted on an image forming device, as shown in fig. 3, the consumable box comprises an electricity eliminating structure and a photosensitive component 20, at least one magnetic piece 21 is arranged on the photosensitive component 20 or a rotating piece in transmission fit with the photosensitive component 20, the magnetic induction piece 2 and the magnetic piece 21 are oppositely arranged and can relatively displace, and the electricity eliminating device 1 is used for eliminating electricity on the photosensitive surface of the photosensitive component 20. The description of the dielectric structure may be referred to the description of the embodiments in fig. 1 to 3, and will not be repeated here.

In an embodiment of the present utility model, the magnetic member 21 may include a permanent magnet or an electromagnet.

As an alternative, at least one magnetic member 21 may be provided on the photosensitive member 20, for example, the at least one magnetic member 21 may be located at a first end of the photosensitive member 20.

As a further alternative, at least one magnetic element 21 may be provided on the rotating element, which may comprise a driving member 22. The magnetic member 21 is disposed on the driving member 22, and the driving member 22 rotates synchronously with the photosensitive member 20, thereby achieving transmission engagement with the photosensitive member 20. Fig. 4 is a schematic structural diagram of a driving component provided in an embodiment of the present utility model, as shown in fig. 3 and 4, a driving component 22 is disposed at a first end of a photosensitive component 20, a magnetic element 21 is disposed on the driving component 22, and a center point of a carrier 3 and a center point of the driving component 22 are both located on an extension line of a center line of the photosensitive component 20. The photosensitive member 20 is a photosensitive drum, and the photosensitive member 20 is cylindrical in shape; the driving member 22 is a gear, and is designed to match the shape of the photosensitive member 20, and the driving member 22 is also cylindrical in shape. In practical applications, the photosensitive member 20 and the driving member 22 may be provided in other shapes, which are not listed here. As shown in fig. 4, the number of the magnetic members 21 provided on the driving part 22 may be plural, and as an alternative, the plural magnetic members 21 may be uniformly arranged around the center point of the driving part 22. In fig. 3, eight magnetic pieces 21 are shown, the eight magnetic pieces 21 being uniformly arranged around the center point of the driving part 22. The number of magnetic pieces 21 and the number of magnetic induction pieces 2 may be the same or different, and in the embodiment of the present utility model, eight magnetic pieces 21 and six magnetic induction pieces 2 are described as an example. As shown in fig. 3 and 4, the magnetic element 21 may be embedded in the driving member 22, and when the driving member 22 rotates, the magnetic element 21 and the photosensitive member 20 rotate around the same axis, and when the magnetic element 21 rotates, a magnetic field is generated, and the magnetic induction element 2 cuts the magnetic field to generate an induced electromotive force, that is, the magnetic induction element 2 cuts the magnetic field to generate an induced current.

As shown in fig. 3, the carrier 3 is disposed opposite to the first end of the photosensitive member 20 such that the magnetic induction member 2 is disposed opposite to the magnetic member 21, and specifically, the body portion 31 of the carrier 3 is disposed opposite to the first end of the photosensitive member 20 such that the magnetic induction member 2 is disposed opposite to the magnetic member 21. One end of the extension portion 32 of the carrier 3, where the extinction device 1 is disposed, extends to the light entrance of the light guide 301, so that the extinction device 1 is disposed at the light entrance of the light guide 301. It should be noted that: the magnetic induction element 2 is not shown in detail in fig. 3.

In an embodiment of the present utility model, as an alternative, as shown in fig. 3, the consumable cartridge further includes a cleaning blade, where the cleaning blade includes a transparent adhesive tape 304 and a metal member, and the transparent adhesive tape 304 is disposed on a side of the light guiding member 301 near the photosensitive member 20, for example, the material of the transparent adhesive tape 304 is PU. The light emitted from the light guide 301 is irradiated to the surface of the photosensitive member 20 through the transparent adhesive tape 304. It should be noted that: the metal member is not specifically shown in fig. 3, and the location of the metal member does not affect the light propagation.

In the technical scheme of the consumable box provided by the embodiment of the utility model, the magnetic induction piece generates induction current through relative displacement with the magnetic piece, the electricity consumption eliminating piece eliminates electricity to the photosensitive part through the induction current generated by the magnetic induction piece, and the electricity consumption eliminating piece eliminates electricity to the photosensitive part without additional power supply, so that the occupied space of an electricity consumption eliminating structure is reduced, the structure of the electricity consumption eliminating structure is simple, the passive design is adopted, and external power supply is not needed; when the magnetic induction piece and the magnetic piece relatively displace, the magnetic induction piece generates induction current to drive the electricity eliminating device to eliminate electricity, so that the electricity eliminating degree of the electricity eliminating device changes along with the speed of the relative displacement of the magnetic induction piece and the magnetic piece, the matching of the speed of the relative displacement of the magnetic induction piece and the magnetic piece and the electricity eliminating degree is realized, the phenomenon that the electricity eliminating structure excessively eliminates electricity or eliminates insufficient electricity on the photosensitive component is effectively prevented, and the matching electricity eliminating structure and the photosensitive component are realized.

The embodiment of the utility model provides an image forming device, which comprises an image forming device body and a consumable box. The description of the consumable cartridge may be referred to the description of the embodiment in fig. 3 and fig. 4, and will not be repeated here.

The embodiment of the utility model provides another image forming device, which comprises an image forming device body and an electricity eliminating structure. The magnetic induction piece is arranged on the image forming device body; or the electricity eliminating structure is arranged on the image forming device body. The description of the dielectric structure may be referred to the description of the embodiments in fig. 1 to 3, and will not be repeated here.

In the field of print imaging, examples of image forming apparatuses include: inkjet printers, laser printers, LED printers, copiers, scanners or multifunctional all-in-one fax machines, and multifunctional peripherals (MFPs) that perform the above functions in a single device. The image forming apparatus includes an image forming control unit for controlling the entire image forming apparatus, and an image forming unit for forming an image on a conveyed sheet under the control of the image forming control unit based on image forming data and a developer such as toner stored in a consumable cartridge.

In the field of print imaging, consumable cartridges are used to contain developer. For example, the consumable cartridge is an ink cartridge, and the developer is ink, and the ink cartridge is used for containing the ink; the consumable box is a selenium drum, and the developer is carbon powder, so that the selenium drum is used for containing the carbon powder; the consumable box is a powder box or a powder cylinder, and the developer is carbon powder, so that the powder box is used for containing the carbon powder, and the powder cylinder is used for containing the carbon powder.

In the technical scheme of the image forming device provided by the embodiment of the utility model, the magnetic induction piece generates induction current through relative displacement with the magnetic piece, the electricity-eliminating device eliminates electricity to the photosensitive component through the induction current generated by the magnetic induction piece, and the electricity-eliminating device eliminates electricity to the photosensitive component without additionally configuring a power supply, so that the occupied space of an electricity-eliminating structure is reduced, the structure of the electricity-eliminating structure is simple, the passive design is adopted, and external power supply is not needed; when the magnetic induction piece and the magnetic piece relatively displace, the magnetic induction piece generates induction current to drive the electricity eliminating device to eliminate electricity, so that the electricity eliminating degree of the electricity eliminating device changes along with the speed of the relative displacement of the magnetic induction piece and the magnetic piece, the matching of the speed of the relative displacement of the magnetic induction piece and the magnetic piece and the electricity eliminating degree is realized, the phenomenon that the electricity eliminating structure excessively eliminates electricity or eliminates insufficient electricity on the photosensitive component is effectively prevented, and the matching electricity eliminating structure and the photosensitive component are realized.

Fig. 5 is a flowchart of a power cancellation method according to an embodiment of the present utility model, fig. 6 is a schematic diagram of an operating principle of a power cancellation structure according to an embodiment of the present utility model, and fig. 7 is a schematic diagram of an operating principle of a rectifying and filtering circuit according to an embodiment of the present utility model. The power canceling method of the power canceling structure shown in fig. 1 and 2 will be described in detail with reference to fig. 5 to 7. As shown in fig. 5, the power cancellation method includes:

step 102, the magnetic induction element and the magnetic element are relatively displaced, so that the magnetic induction element generates induced current.

As shown in fig. 2 and 6, the driving part 22 rotates to drive the photosensitive part 20 to rotate and the magnetic member 21 to rotate. As the magnetic member 21 rotates, the magnetic induction member 2 and the magnetic member 21 are relatively displaced, so that the magnetic induction member 2 generates an induced current.

Specifically, as shown in fig. 2, 3 and 6, a varying magnetic field is generated when the magnetic member 21 rotates, and the magnetic induction member 2 cuts the magnetic field to generate an induced electromotive force E, that is, the magnetic induction member 2 cuts the magnetic field to generate an induced current, that is, the magnetic force lines in the magnetic field are cut by the magnetic induction member 2 to generate an induced current, wherein the induced current is an alternating current.

As an alternative, as shown in fig. 2 and 6, the driving circuit 4 includes a rectifying and filtering circuit, and the power cancellation device 1 is an LED. The driving circuit 4 performs rectifying and filtering processing on the induced current to generate a supply voltage VCC, where the supply voltage is a dc supply voltage. The driving circuit 4 supplies power to the current eliminator 1 through the power supply voltage VCC, so that the magnetic induction element 2 outputs an induction current to the current eliminator 1 through the driving circuit 4. Specifically, as shown in fig. 6, the driving circuit 4 and the current limiting resistor R are connected in series with the current-eliminating device 1, the driving circuit 4 outputs the power supply voltage VCC and supplies power to the current-eliminating device 1 through the current limiting resistor R, so that the magnetic induction element 2 outputs an induced current to the current-eliminating device 1 through the driving circuit 4 to drive the current-eliminating device 1 to emit light.

The driving circuit 4 may further include an amplifying circuit and/or a voltage stabilizing circuit, and is capable of amplifying and stabilizing a current.

As shown in fig. 2, 3 and 7, after the photosensitive member 20 rotates one turn, the number n of induced electromotive forces E generated by the magnetic induction elements 2 is a×b, where a is the number of the magnetic induction elements 2 and b is the number of the magnetic elements 21. The driving circuit 1 rectifies the a×b induced electromotive forces E generated by the magnetic induction element 2 to obtain 2a×b induced electromotive forces E, and the driving circuit 4 filters the 2a×b induced electromotive forces E to obtain a power supply voltage VCC. The more the number of induced electromotive forces E per unit time, the more stable the power supply voltage VCC outputted after the filtering process. The induced electromotive force E is determined by the amount of change in magnetic flux per unit time of the magnetic induction element 2, that is: e= Δq/Δt, where Δq is the amount of change in magnetic flux, and Δq is related to the magnetic pole strength of the magnetic member 21 and the rotational speed of the photosensitive member 20. The amount of change Δq in the magnetic flux is proportional to the rotational speed of the photosensitive member 20, and therefore, the induced electromotive force E is proportional to the rotational speed of the photosensitive member 20, that is: the induced current is proportional to the rotational speed of the photosensitive member 20, and the higher the rotational speed of the photosensitive member 20, the higher the induced electromotive force E (induced current) becomes, and the higher the intensity of the outgoing light of the power cancellation device 1 becomes, and the higher the luminance of the outgoing light becomes. That is, the light emission luminance of the charge eliminating device 1 is proportional to the rotation speed of the photosensitive member 20. For example, the faster the rotation speed of the photosensitive member 20, the higher the light emission luminance of the charge eliminating device 1, the faster the speed of eliminating residual charges on the photosensitive surface of the photosensitive member 20; alternatively, when the rotational speed of the photosensitive member 20 is reduced (for example, when the image forming apparatus is in the intermittent printing mode or the silent printing mode), the light emission luminance of the charge eliminating device 1 is reduced as the rotational speed of the photosensitive member 20 is reduced, and the speed of eliminating residual charges on the photosensitive surface of the photosensitive member 20 is also reduced. Therefore, the light emission luminance of the power cancellation device 1 varies with the rotation speed of the photosensitive member 20, and the luminance of the power cancellation device 1 is controlled. Thereby realizing the matching of the rotating speed of the photosensitive member 20 and the power elimination degree, effectively preventing the excessive power elimination of the photosensitive member 20 or insufficient power elimination of the photosensitive member 20 by the power elimination structure, and further realizing the matching power elimination of the power elimination structure and the photosensitive member.

Step 104, the current sensing device receives the induced current and starts.

As an alternative method, when the current eliminator 1 is an LED, the induced current is used to drive the current eliminator 1 to emit light, so as to realize the starting of the current eliminator 1.

Step 106, the charge eliminating device eliminates residual charges on the photosensitive surface of the photosensitive member.

As shown in fig. 3, the light emitted from the charge eliminating device 1 is irradiated to the photosensitive surface of the photosensitive member 20 to eliminate residual charges on the photosensitive surface of the photosensitive member 20. The light emitted by the charge eliminating device 1 irradiates the lens 302, the lens 302 converges the light to the light guide 301, the light guide 301 guides the light to irradiate the light to the photosensitive surface of the photosensitive member 20, and the reflective film 303 can reflect the excessive light emitted by the light guide 301 back to the light guide 301, so that the light guide 301 can irradiate the excessive light to the photosensitive member 20, and residual charges on the photosensitive surface of the photosensitive member 20 after being irradiated are uniformly conducted away, thereby realizing charge elimination of the residual charges on the photosensitive surface of the photosensitive member 20.

In the technical scheme of the power elimination method provided by the embodiment of the utility model, the magnetic induction piece and the magnetic piece are relatively displaced so that the magnetic induction piece generates induction current, the power elimination piece receives the induction current and is started, the power elimination piece eliminates residual charges on the photosensitive surface of the photosensitive part, and the power elimination piece eliminates the power of the photosensitive part without additional power supply, so that the occupied space of the power elimination structure is reduced, the power elimination structure is simple in structure, and the passive design is adopted, so that external power supply is not needed; when the magnetic induction piece and the magnetic piece relatively displace, the magnetic induction piece generates induction current to drive the electricity eliminating device to eliminate electricity, so that the electricity eliminating degree of the electricity eliminating device changes along with the speed of the relative displacement of the magnetic induction piece and the magnetic piece, the matching of the speed of the relative displacement of the magnetic induction piece and the magnetic piece and the electricity eliminating degree is realized, the phenomenon that the electricity eliminating structure excessively eliminates electricity or eliminates insufficient electricity on the photosensitive component is effectively prevented, and the matching electricity eliminating structure and the photosensitive component are realized.

The embodiment of the utility model effectively prevents the excessive electricity elimination of the electricity-eliminating device on the photosensitive component, avoids the light fatigue phenomena of overcharge, overdischarge and the like of the photosensitive component, and prolongs the service life of the photosensitive component; the embodiment of the utility model effectively prevents insufficient electricity elimination of the photosensitive member, avoids the phenomenon of ghost image generated by the printed image, and improves the quality of the printed image.

In the technical scheme of the embodiment of the utility model, the induction current generated by the magnetic induction piece is in direct proportion to the rotating speed of the photosensitive component, so that the light intensity of the electricity eliminating device is in direct proportion to the rotating speed of the photosensitive component, and therefore, the light intensity of the electricity eliminating device is matched with the rotating speed of the photosensitive component, so that the dark decay curve of the electricity eliminating device and the photosensitive component can be matched, the photosensitive surface of the photosensitive component can be effectively eliminated, the charge and discharge capacity of the photosensitive component is further improved, the fatigue phenomena such as double image and overcharge and overdischarge are prevented, and the service life of the photosensitive component is prolonged.

According to the technical scheme provided by the embodiment of the utility model, the photosensitive surface of the photosensitive part is subjected to power elimination through the passive power elimination device and the light guide part, so that the residual charge on the surface of the photosensitive part is reduced, the optical fatigue is reduced, the ghost phenomenon in the printing process is avoided, and the quality of the printed image is improved.

Fig. 8 is a schematic structural diagram of another consumable cartridge according to an embodiment of the present utility model, as shown in fig. 8, and further includes a detecting member 5, where the detecting member 5 is configured to output a detecting current corresponding to an induced current, the detecting current increases with an increase in a rotation speed of the photosensitive member 20, and the detecting current is configured to determine whether the imaging assembly meets an expectation or not on the basis of the embodiment shown in fig. 3.

The detecting member 5 is electrically connected to the cartridge chip 6. The detection member 5 may comprise a photosensitive element, which may comprise a photoresistor or a photodiode, for example. The detecting member 5 may be electrically connected to the consumable cartridge chip 6 through a wire or a metal contact. In the embodiment of the utility model, the consumable box chip 6 is detachably mounted on the consumable box, and the consumable box chip 6 is also electrically connected with a main control chip of the image forming device. It should be noted that: the main control chip is not specifically shown in the figure.

In order to enable the light emitted by the current eliminating device 1 to irradiate the detecting member 5, the detecting member 5 may be located at a second end of the photosensitive member 20, where the second end is opposite to the first end, and the current eliminating device 1 may irradiate the emitted light to the detecting member 5 through the light guiding member 301.

As an alternative, the light guide 301 includes a first light guide portion and a second light guide portion, the first light guide portion and the photosensitive member 20 being disposed opposite to each other, and the second light guide portion being disposed opposite to the detecting member 5. As shown in fig. 8, the light guide 301 is divided into two parts by using a broken line as a boundary, wherein one part is a first light guide part, the other part is a second light guide part, and the second light guide part is a structure in which the first light guide part extends along the length direction of the photosensitive member 20, and the first light guide part and the second light guide part can be integrally formed. The light emitted from the first light guiding portion may be irradiated onto the photosensitive member 20, and the light emitted from the second light guiding portion may be irradiated onto the detecting member 5. When light is irradiated onto the detecting element 5, the optical characteristics of the detecting element 5 are changed. The detecting piece 5 generates detecting current under the irradiation of light rays and transmits the detecting current to the consumable box chip 6, and the light detecting circuit of the consumable box chip 6 converts the detecting current into analog voltage and outputs the analog voltage to the main control chip. Wherein the detection current is a photocurrent.

As shown in fig. 3 and 8, the second end of the photosensitive member 20 may also be provided with a driving member as an alternative to drive the photosensitive member 20 to rotate in conjunction with the driving member provided at the first end. The driving member provided at the second end may be identical to the driving member provided at the first end, the driving member provided at the second end being a gear, the driving member provided at the second end not being specifically shown in fig. 3 and 8.

Based on the consumable box in fig. 8, the power cancellation method provided by the embodiment of the utility model further includes:

and 202, the power elimination device irradiates emitted light to the detection piece.

As shown in fig. 8, the power cancellation device 1 may radiate emitted light to the detection member 5 through the light guide member 301. Specifically, when the photosensitive member 20 and the magnetic member 21 rotate, the charge eliminating device 1 emits light and irradiates the emitted light to the lens 302, the lens 302 condenses the light to the light guide 301, and the light guide 301 guides the light so that the light emitted from the first light guide member in the light guide 301 irradiates onto the photosensitive member 20 and the light emitted from the second light guide portion in the light guide 301 irradiates onto the detection member 5.

Step 204, the detecting element generates a detecting current under the irradiation of light, and outputs the detecting current to the consumable cartridge chip.

Step 206, the consumable box chip converts the detected current into an analog voltage and outputs the analog voltage to the main control chip, so that the main control chip can detect the state information according to the analog voltage.

Since the light emission luminance of the charge eliminating device 1 is proportional to the rotation speed of the photosensitive member 20 and the magnitude of the detection current generated by the detecting element 5 is proportional to the light emission luminance of the charge eliminating device 1, the magnitude of the detection current generated by the detecting element 5 is proportional to the rotation speed of the photosensitive member 20. The larger the rotation speed of the photosensitive member 20, the larger the photocurrent generated by the detecting element 5, and the larger the analog voltage converted by the detecting current; alternatively, as the rotation speed of the photosensitive member 20 is smaller, the detection current generated by the detecting element 5 is smaller, and the analog voltage converted from the detection current is smaller. The state information detected by the main control chip is different for different analog voltages, and the state information can comprise first state information or second state information. Specifically, the main control chip can detect first state information corresponding to the analog voltage A according to the larger analog voltage A; and/or the main control chip can detect the second state information corresponding to the analog voltage B according to the smaller analog voltage B. For example, in the process from no rotation to slow rotation of the photosensitive member 20, the analog voltage received by the main control chip slowly rises from 0V to 5V, and the second state information can be detected according to the analog voltage; and/or, in the process of the photosensitive member 20 from slow rotation to fast rotation, the analog voltage received by the main control chip slowly rises from 5V to 10V, and the first state information can be detected according to the analog voltage. Therefore, the main control chip indicates that the detection current generated by the detection element 5 is larger when detecting the first state information, and indicates that the detection current generated by the detection element 5 is smaller when detecting the second state information. However, as long as the main control chip can receive the analog voltage, the first state information and/or the second state information can be detected according to the analog voltage, and whether the consumable box accords with the expectation or not can be determined no matter the size of the analog voltage.

In the embodiment of the utility model, the detection piece is arranged in the consumable box, the main control chip can detect the state information according to the detection current generated by the detection piece, and then the consumable box can be used according to the state information, and the consumable box is matched with the image forming device.

As shown in fig. 9, on the basis of the embodiment shown in fig. 3, the carrier 3 further includes a power recovery device 33, the power recovery device 33 is electrically connected to the magnetic induction element 2 and the electric device 1, respectively, the magnetic induction element 2 transmits an induced current to the electric device 1 through the power recovery device 33, and the power recovery device 33 is used for storing the induced current or preventing the induced current from being transmitted to the electric device 1 when the photosensitive member 20 does not need to be subjected to power elimination.

The extension of the carrier 3 may be a selective switch 32. The selective switch 32 is connected to the first end a of the power recovery device 33 so that the power recovery device 33 is electrically connected to the magnetic induction element 2, and the selective switch 32 may be configured such that the power recovery device 33 charges or prevents the induced current from being supplied to the power cancellation device 1, and at this time, the photosensitive member 20 does not need to perform power cancellation, and the power recovery device 33 stores the induced current or prevents the induced current from being supplied to the power cancellation device 1. The selective switch 32 is configured such that when the power recovery device 33 is charged, the power recovery device 33 may be a battery or other device for storing energy. The selective switch 32 is connected to the second end b of the power recovery device 33 such that the power recovery device 33 is electrically connected to the current consumer 1, the selective switch 32 may be arranged to directly power the current consumer 1, in which case the magnetic induction element 2 may deliver an induced current to the current consumer 1 via the power recovery device 33.

In the image forming process including charging, developing and transferring, the photosensitive member 20 is required to rotate to realize the operation of forming the developer image on the paper, but the photosensitive member 20 does not need to use the power erasing device 1 at this time, when the image forming control unit controls the driving member 22 to rotate, the magnetic member 21 generates a magnetic field when rotating, the magnetic induction member 2 cuts magnetic lines of force in the magnetic field to generate induced current, and the driving circuit still continues to generate the power supply voltage. The present embodiment provides the power recovery device 33 to perform power recovery on the power supply voltage generated by rotation of the photosensitive member 20 when the photosensitive member 20 does not need the power cancellation device 1, so as to protect the photosensitive member 20 and avoid the situations of erroneous power cancellation, overexposure or excessive power cancellation on the photosensitive member 20. In addition, after a certain amount of electric power is collected, the power recovery device 33 can also provide an electric power source for the electric power-saving device 1, so that energy consumption is saved, and electric power is enhanced for the electric power-saving device 1. Therefore, with the embodiment of the present utility model, when the photosensitive member 20 does not need to use the power cancellation device 1, the image forming control unit controls the selective switch to be connected to the power recovery device 33, so that power recovery can be performed on the power supply voltage generated by the driving circuit; when the photosensitive member 20 needs to perform a power-off operation with the power-off device 1, the image forming control unit controls the selective switch to connect the power-off device 1 to perform direct power supply, whereby the power-off device 1 performs a matching power-off operation for the photosensitive member 20.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the utility model.

Claims (20)

1. A power cancellation structure, comprising:

at least one magnetic induction element for relative displacement with the magnetic element and for generating an induced current; a kind of electronic device with high-pressure air-conditioning system

The power elimination device is electrically connected with the magnetic induction piece;

the magnetic induction piece conveys the induction current to the electricity eliminating device, and the electricity eliminating device is used for eliminating electricity of the photosensitive component.

2. The erasing structure as set forth in claim 1, wherein said erasing device is an erasing lamp which emits light and is used to erase electricity to said photosensitive member when said magnetic induction member transmits said induction current to said erasing device.

3. The power cancellation structure according to claim 2, further comprising a light guide member disposed opposite to the light guide member, the light guide member being configured to conduct light emitted from the power cancellation member to the photosensitive member and to cancel electricity.

4. A power erasing structure as set forth in claim 3, wherein said light guide is provided in an axial direction of said photosensitive member.

5. A power cancellation structure according to claim 3, further comprising a lens between the power cancellation device and the light guide, the lens comprising a light entrance end and a light collection end, the lens being configured to collect and guide light entering from the light entrance end to the light collection end, the light entrance end being configured to receive light emitted from the power cancellation device, and the light collection end being configured to guide light to the light guide.

6. A structure according to claim 3, wherein a reflective film is provided on a side of the light guide away from the photosensitive member, the reflective film being for reflecting light.

7. A power cancellation structure according to claim 3, wherein a side of the light guide adjacent to the photosensitive member is provided with a plurality of light guide points, the light guide points comprising protrusions and/or recesses.

8. The power cancellation structure of claim 1, further comprising a drive circuit, wherein the magnetic induction element is electrically connected to the power cancellation device through the drive circuit.

9. The power cancellation structure of claim 8, wherein said drive circuit includes a rectifying filter circuit.

10. The structure according to any one of claims 1 to 7, further comprising a carrier, wherein the magnetic induction element and the charge eliminating element are both provided on the carrier.

11. The structure according to claim 10, further comprising a driving circuit through which the magnetic induction member is electrically connected to the power cancellation device, the carrier including a body portion and an extension portion extending from the body portion, the magnetic induction member being provided to the body portion, the driving circuit being provided to the extension portion.

12. The structure according to claim 11, wherein the number of the magnetic induction pieces is plural, and the plurality of magnetic induction pieces are disposed around the center point of the body portion and are sequentially arranged in the circumferential direction of the center point of the body portion.

13. The power cancellation structure according to claim 10, wherein said carrier further comprises a power recovery device electrically connected to said magnetic induction member and said power cancellation device, respectively, said magnetic induction member delivering said induced current to said power cancellation device through said power recovery device, said power recovery device for storing said induced current or preventing said induced current from being delivered to said power cancellation device when said photosensitive member does not need to perform power cancellation.

14. The de-energizing structure of any one of claims 1-9, wherein the magnetic induction element is a magnetic induction coil.

15. A consumable cartridge for detachable mounting to an image forming apparatus, comprising: a photosensitive member and the charge eliminating structure according to any one of claims 1 to 14;

at least one magnetic piece is arranged on the photosensitive component or a rotating piece in transmission fit with the photosensitive component, and the magnetic induction piece and the magnetic piece are oppositely arranged and can relatively displace;

the charge eliminating device eliminates charge on the photosensitive surface of the photosensitive member.

16. The consumable cartridge of claim 15, wherein the rotating member comprises a driving member, the magnetic member is provided on the driving member, and the driving member rotates in synchronization with the photosensitive member.

17. The consumable cartridge of claim 16, wherein the drive component is a gear.

18. The consumable cartridge of claim 16, wherein the magnetic member rotates about the same axis as the photosensitive member.

19. An image forming apparatus comprising an image forming apparatus body and the consumable cartridge according to any one of claims 15 to 18.

20. An image forming apparatus comprising an image forming apparatus body and the de-electrification structure according to any one of claims 1 to 14, the magnetic induction member being provided to the image forming apparatus body; or the power elimination structure is arranged on the image forming device body.