WO2024041094A1

WO2024041094A1 - Consumable chip, consumable, and image forming device

Info

Publication number: WO2024041094A1
Application number: PCT/CN2023/098796
Authority: WO
Inventors: 张�浩; 宁丹; 李海雄; 程松杰; 蒋谦; 黄超豪
Original assignee: 珠海奔图电子有限公司
Priority date: 2022-08-23
Filing date: 2023-06-07
Publication date: 2024-02-29
Also published as: CN115268240A

Abstract

A consumable chip, a consumable, and an image forming device. The consumable chip is provided on a consumable, and the consumable chip comprises: a first control unit and a second control unit. When the consumable is mounted on an image forming device, the first control unit and the second control unit are electrically connected to the image forming device by means of a same communication bus. The first control unit is used for controlling, when it is determined that the second control unit does not need to communicate with the image forming device, the second control unit not to be started. According to the present application, the power consumption of the consumable chip can be reduced, thereby reducing the power consumption of the image forming device.

Description

Consumable chips, consumables and image forming devices

This application claims priority to the Chinese patent application filed with the China Patent Office on August 23, 2022, with the application number 202211015062.0 and the invention name "Consumable Chips, Consumables and Image Forming Devices". The entire content of the above patent application is incorporated by reference. in this application.

Technical field

The present application relates to the field of image forming technology, and in particular to a consumable chip, consumables and an image forming device.

Background technique

The image forming apparatus is provided with replaceable consumables, and these consumables are generally provided with consumable chips. The consumable chip can store data such as the consumable's production date, attributes, and remaining amount of printing materials. For the safety of the consumable, the consumable chip can also store the consumable's security certification data.

When the consumable is installed in the image forming apparatus, the consumable chip on the consumable may be electrically connected to the image forming apparatus. The image forming device supplies power to the consumable chip and performs data exchange with the consumable chip.

Reducing the power consumption of consumable chips, and thus reducing the power consumption of image forming devices, is a problem to be solved.

Contents of the invention

The present application provides a consumable chip, consumables and an image forming device, which can reduce the power consumption of the consumable chip and thereby reduce the power consumption of the image forming device.

In a first aspect, embodiments of the present application provide a consumable chip. The consumable chip is provided on the consumable material. The consumable chip includes: a first control unit and a second control unit;

When the consumable is installed in the image forming device, the first control unit and the second control unit are electrically connected to the image forming device through the same communication bus;

The first control unit is configured to control the second control unit not to start when it is determined that the second control unit does not need to communicate with the image forming apparatus.

In this consumable chip, when the first control unit determines that the second control unit does not need to communicate with the image forming device, it controls the second control unit not to start, thereby reducing the power consumption of the second control unit and thereby reducing the power consumption of the consumable chip. , reducing the power consumption of the image forming device.

In a second aspect, embodiments of the present application provide a consumable chip. The consumable chip is provided on the consumable. The consumable chip includes: a first control unit and a second control unit;

The first control unit is configured to: when it is determined that the second control unit does not need to communicate with the image forming device, control the second control unit to be in a low power consumption state; the second control unit is in a low power consumption state. state, at least one module of the second control unit is in a closed state.

In this consumable chip, when the first control unit determines that the second control unit does not need to communicate with the image forming device, it controls the second control unit to be in a low power consumption state, thereby reducing the power consumption of the second control unit and thereby reducing the consumable chip. The power consumption of the image forming device is reduced.

In a third aspect, embodiments of the present application provide a consumable, including the consumable chip according to any one of the first aspect or the second aspect, a housing and a developer accommodating part, wherein the developer accommodating part is located in the shell. Inside the body, used to contain the developer.

In a fourth aspect, embodiments of the present application provide a consumable, including the consumable chip described in any one of the first or second aspects, a photosensitive drum, and a charging roller, wherein the charging roller is used to charge the photosensitive drum.

In a fifth aspect, embodiments of the present application provide an image forming apparatus, including the consumable chip according to any one of the first or second aspect, or the consumable material according to any one of the third or fourth aspect.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without exerting creative efforts.

Figure 1A is a schematic structural diagram of an image forming device provided by an embodiment of the present application;

Figure 1B is a schematic diagram of the connection relationship between the consumable chip and the image forming device provided by one embodiment of the present application;

Figure 2 is a schematic structural diagram of a consumable chip provided by an embodiment of the present application;

Figure 3 is a second structural schematic diagram of a consumable chip provided by an embodiment of the present application;

Figure 4 is a third structural schematic diagram of a consumable chip provided by an embodiment of the present application;

Figure 5 is a fourth structural schematic diagram of a consumable chip provided by an embodiment of the present application;

Figure 6A is a fifth structural schematic diagram of a consumable chip provided by an embodiment of the present application;

Figure 6B is a sixth structural schematic diagram of a consumable chip provided by an embodiment of the present application;

Figure 7 is a seventh structural schematic diagram of a consumable chip provided by an embodiment of the present application;

Figure 8 is a schematic structural diagram of an eighth type of consumable chip provided by an embodiment of the present application;

Figure 9 is a timing diagram between the image forming device, the first MCU, and the second MCU provided by the embodiment of the present application;

FIG. 10 is a schematic diagram of the connection relationship between a consumable chip and an image forming device according to another embodiment of the present application.

Detailed ways

The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application and are not intended to limit the present application.

When the consumable is installed in the image forming apparatus, the consumable chip on the consumable is electrically connected to the image forming apparatus. The image forming device supplies power to the consumable chip and performs data exchange with the consumable chip.

To this end, this application proposes a consumable chip, consumables and an image forming device, which can reduce the power consumption of the consumable chip and thereby reduce the power consumption of the image forming device.

The image forming apparatus is used to perform image forming jobs such as generating, printing, receiving, and transmitting image data, and examples of the image forming apparatus include: inkjet printers, laser printers, light emitting diode (LED) printers, copiers, scanners or multi-function all-in-one fax machine, and multi-function peripherals (Multi-Functional Peripheral, MFP) 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 controlling the transmitted image based on the image data and under the control of the image forming control unit. An image is formed on the paper.

The image forming control unit may be a system on chip (SoC). The SoC is a micro system composed of multiple system components and is configured to control the imaging processing operations of the image forming device, such as linear correction of image data. , noise reduction, bad pixel removal, detail enhancement and other processing, thereby improving the quality of image output. The main controller is also used to perform data sending and receiving, command sending and receiving, and engine control related processing operations for printing images, such as through the interface unit (including but Not limited to USB ports, wired network ports, wireless network ports or other interfaces, etc.) to send and receive data, print engine control commands, status, etc.

Referring to FIG. 1A , as an example of an image forming apparatus, the image forming part of the image forming apparatus may include: a developer accommodating part 11 , a developing part 12 , a developer conveying element 13 , a photosensitive part 14 , a transfer part 15 and a fixing part. Assemblies 5 and so on, the paper to be printed moves in the paper feeding direction, and after sequentially passing through the powder feeding operation of the developer conveying element 13 and the developing operation of the developing part 12 , reaches the clamping area between the photosensitive part 14 and the transfer part 15 Transfer is performed, and then is fixed through the fixing assembly 5 to complete the image forming operation. The developer container 11 is used to accommodate the developer, which can be toner, toner and other materials; the developing component 12 includes: roller, etc.; the developer transport element 13 includes: powder feeding roller, etc.; the photosensitive component 14 includes: a photosensitive drum (OPC, Organic Photo Conductor) and a charging roller, etc., wherein the charging roller is used to charge the photosensitive drum.

Usually, the image forming apparatus is detachably installed with at least one consumable. Taking the image forming apparatus shown in FIG. 1A as an example, the image forming apparatus is detachably installed with four consumables (consumables 1, 2, and 2 respectively as shown in FIG. 1A). Consumables 3 and 4, the four consumables are used to provide the image forming device with developers of four colors: black K, cyan C, magenta M, and yellow Y respectively). Of course, in other embodiments, the image forming device is installed The number of consumables can be increased or reduced, for example, to 5 or 6, or even more or less, etc. This application does not limit this. This application is mainly applied to scenarios where the number of consumables installed in the image forming device is greater than or equal to 2.

The consumable chip is specifically a circuit substrate mounted on the consumable. The circuit substrate includes a control unit and an interface connected to the control unit. The interface is used to connect to an interface on the image forming device side.

For consumables for mounting chips, one possible way is that the consumables may only include the developer accommodating portion 11 .

One possible way is that the consumables have a split structure. For example, the consumables (1, 2, 3 or 4) include a developing cartridge and a drum cartridge that are detachable from each other. The developing cartridge includes a housing and a developer containing part. 11. Developing component 12 and/or developer conveying member 13; the drum cartridge includes a photosensitive member 14, that is, a photosensitive drum and a charging roller.

Among them, the developer accommodating part 11 is located in the housing and is used to accommodate the developer. The developer conveying element 13 is used to convey the developer to the developing part 12. The developing part 12 is used to convey the developer to the photosensitive drum, wherein the developer conveying element In addition to the powder feeding roller, it can also be other components such as powder pushing screws.

In one possible implementation, the consumable material may be the aforementioned developing box.

In one possible implementation, the consumable material may be the aforementioned drum box.

One possible way is that the consumable material has an integrated structure. For example, the consumable material (1, 2, 3 or 4) includes a developer accommodating part 11, a developing component 12, a developer transporting element 13, a photosensitive component 14, etc.

It should be noted that the consumables mentioned in this embodiment can also be other components, parts, and units in the image forming apparatus that are easily damaged and need to be replaced, such as paper boxes, etc., which also belong to the technical solution corresponding to the consumables protected by this application.

As shown in FIG. 1B , it is a schematic diagram of the connection relationship between the consumable chip and the image forming device provided by one embodiment of the present application. in,

The image forming apparatus 100 may include: a processor 101, a memory 102, a power supply module 103, a first communication interface 104, and a first power supply interface 105.

It can be understood that the image forming device provided in the embodiments of the present application does not constitute a specific limitation on the image forming device. In some embodiments, the image forming device may include more or fewer components than the structure shown in FIG. 1B , which is not limited by the embodiments of this application.

The memory 102 may be used to store computer programs, and the processor 101 may recall and run the computer programs from the memory 102 .

The processor 101 may include the above-described SoC serving as the above-described image forming control unit, and may further include one or more interfaces. The above-mentioned interface may include an integrated circuit (inter-integrated circuit, I2C) interface.

The I2C interface is a bidirectional synchronous serial bus, including a serial data line (SDA) and a serial clock line (derail clock line, SCL). In some embodiments, processor 101 may include multiple sets of I2C buses.

The first communication interface 104 may be connected with a corresponding interface of the processor 101 . For example, if the first communication interface 104 is an I2C interface, the first communication interface 104 may be connected with the I2C interface included in the processor 101 .

The power supply module 103 is connected to the processor 101, the memory 102, and the first power supply interface 105 respectively. The power supply module 103 can receive power input to power the above components.

Optionally, the power input of the power supply module 103 may be commercial power received by the power plug of the image forming apparatus, such as 220V AC power, and the power supply module 103 may convert the AC power into the processor 101, the memory 102, and the first power supply. The direct current required by components such as the interface 105 is used to power the above components.

The above-mentioned first communication interface 104 and first power supply interface 105 may be provided at a consumable installation position of the image forming apparatus 100 for coupling consumable chips.

As shown in FIG. 1B , the consumable chip 110 may include: a second communication interface 111 and a second power supply interface 112 .

It should be noted that FIG. 1B only shows the above-mentioned second communication interface 111 and the second power supply interface 112 connecting the consumable chip 110 and the image forming device 100 to illustrate the possible connection relationship between the consumable chip and the image forming device 100 , and is not used to limit the specific implementation structure of the consumable chip. The consumable chip 110 may also include For other components such as a control unit (such as a Microcontroller Unit (MCU)), please refer to the consumable chip provided in the subsequent embodiments of the present application for details, which will not be described again here.

The consumable chip 110 may be provided on the consumable material of the image forming apparatus 100 . When the consumable is installed in the installation position set by the image forming apparatus 100 for the consumable, the consumable chip 110 may be coupled with the image forming apparatus 100 . specific,

The second communication interface 111 of the consumable chip 110 may be electrically connected to the first communication interface 104 of the image forming apparatus 100, thereby being electrically connected to the processor 101 of the image forming apparatus 100 through the first communication interface 104. In one example, the first communication interface 104 and the second communication interface 111 may be I2C interfaces respectively.

The second power supply interface 112 of the consumable chip 110 can be electrically connected to the first power supply interface 105 of the image forming apparatus 100, so that the image forming apparatus 100 can power the consumable chip 110 through the first power supply interface 105 and the second power supply interface 112.

Hereinafter, based on the structure and connection relationship between the image forming apparatus 100 and the consumable chip 110 described above, the embodiment of the present application exemplifies the structure of the consumable chip provided by the embodiment of the present application.

Figure 2 is a schematic structural diagram of a consumable chip provided by an embodiment of the present application. As shown in Figure 2, the consumable chip may include: a first control unit 210 and a second control unit 220; wherein,

The communication interface 211 of the first control unit 210 and the communication interface 221 of the second control unit 220 are respectively connected to the second communication interface of the consumable chip, so that both the first control unit 210 and the second control unit 220 can connect to the image through the second communication interface. The forming apparatus, that is, the first control unit 210 and the second control unit 220 may be connected to the image forming apparatus through the same communication bus.

The power supply interface 212 of the first control unit 210 and the power supply interface 222 of the second control unit 220 can be respectively connected to the second power supply interface of the consumable chip, so that the first control unit 210 and the second control unit 220 can obtain power from the second power supply interface. , supporting the power-on startup of the first control unit 210 and the second control unit 220.

The first control unit 210 may be used to: start the second control unit 220 when it is determined that the second control unit 220 needs to communicate with the image forming device; and control the second control unit 220 when it is determined that the second control unit 220 does not need to communicate with the image forming device. 220 does not start.

Optionally, after the first control unit 210 is powered and started, when it is determined that the second control unit 220 does not need to communicate with the image forming apparatus, it directly controls the second control unit not to start, thereby reducing the power of the second control unit 220 . Consumption.

In one embodiment, the first control unit 210 may serve as a main control MCU for performing data interaction with the image forming device and completing process processing related to the use of consumables.

The second control unit 220 can serve as a controlled MCU and cooperate with the image forming device to perform data processing in certain processes related to the use of consumables. For example, the second control unit 220 may be used to: perform data interaction with the image forming device, cooperate with the image forming device to complete editing operations such as reading and writing consumable-related data; and/or store security authentication data, and communicate with the image forming device. Security authentication is performed to ensure the security of the image forming device’s editing operations on consumable-related data.

Under this functional division, the second control unit 220 only needs to communicate with the image forming device when the image forming device and the consumable chip are performing consumable-related data editing operations and security authentication. Other communications are handled by the first control unit. The control unit 210 is completed. Therefore, by controlling the second control unit 220 not to start when it is determined that the second control unit 220 does not need to communicate with the image forming apparatus, the first control unit 210 can reduce the power consumption of the second control unit 220 and thereby reduce the power consumption of the consumable chip. .

In another embodiment provided by the embodiment of the present application, since the consumable chip includes the first control unit 210 and the second control unit 220, under certain conditions, such as the power-on stage of the image forming device, or the image forming device processing task When too much, because the power supply module of the image forming device needs to provide power for too many components in the image forming device, there may be a problem that the operating current provided by the image forming device to the consumable chip cannot meet the normal working requirements of the consumable chip, resulting in The chip is not working properly. Accordingly,

In another embodiment provided by this application, the first control unit 210 may be used for:

When it is determined that the second control unit 220 does not need to communicate with the image forming apparatus, control the second control unit 220 not to start;

When it is determined that the second control unit 220 needs to communicate with the image forming device, and it is determined that the operating current received by the consumable chip is not less than the preset first current value, the second control unit 220 is started;

When it is determined that the second control unit 220 needs to communicate with the image forming device and it is determined that the power supply current received by the consumable chip is less than the preset first current value, the second control unit 220 is controlled not to start.

Optionally, the first control unit 210 may also be configured to: determine that the second control unit 220 needs to communicate with the image forming device, and determine that the power supply current received by the consumable chip is less than the preset first current value, send a signal to the image forming device. The first message is used to indicate to the image forming apparatus that the second control unit 220 is not activated.

An exemplary description is given of an implementation manner in which the first control unit 210 determines whether the operating current received by the consumable chip is less than the preset first current value.

In a possible implementation, since the image forming device supplies insufficient power to the consumable chip mostly during the power-on phase and the busy task phase of the image forming device, based on this, the image forming device can provide insufficient power to the consumable chip. Possible scenarios may occur to determine whether the operating current received by the consumable chip is less than the preset first current value. For example,

The first control unit 210 determines whether the operating current received by the consumable chip is less than the preset first current value, which may include:

The first control unit 210 determines whether the power-on duration of the first control unit 210 is less than the preset first time, and if not, determines that the operating current received by the consumable chip is not less than the preset first current value; if yes, determines the first control Whether the unit 210 establishes communication with the image forming device, if so, determines that the working current received by the consumable chip is not less than the preset first current value, if not, determines that the working current received by the consumable chip is less than the preset first current value;

or,

The first control unit 210 determines whether the power-on duration of the first control unit 210 is less than the preset second time. If so, determines that the operating current received by the consumable chip is less than the preset first current value. If not, determines that the consumable chip receives The operating current is not less than the preset first current value;

or,

The first control unit 210 determines, based on the power supply status information obtained from the image forming device, if the power supply status information indicates that the image forming device has not been powered on or the task volume of the image forming device is greater than a preset threshold, etc. The working current received by the consumable chip is less than the preset first current value. If the power supply status information indicates that the image forming device is powered on and the task volume is less than the preset threshold, it is determined that the working current received by the consumable chip is not less than the preset first current value. .

It should be noted that if the image forming device and the first control unit and the second control unit in the consumable chip communicate through the I2C interface, that is, through the I2C bus, generally the image forming device defaults to the host communication mode, and the consumable chip The first control unit and the second control unit are respectively in slave communication mode. In order to enable the first control unit 210 to obtain the power supply status information from the image forming device, the first control unit 210 may first negotiate with the image forming device to transfer the image The forming device switches from the host communication mode to the slave communication mode, and the first control unit 210 switches from the slave communication mode to the host communication mode; after completing the acquisition of the power supply status information, the first control unit 210 can switch back to the slave communication mode. , the image forming device can switch back to the host communication mode, thereby ensuring the normal execution of subsequent processing procedures of the image forming device and the first control unit 210 .

The values of the first duration and the second duration may be the same or different. Optionally, the values of the first duration and the second duration may be determined with reference to the average power-on duration of the image forming device.

In another possible implementation, the current detection unit can be directly provided to measure the current value of the working current received by the consumable chip, that is, to measure the current value of the working current provided by the image forming device to the consumable chip. The above-mentioned current detection unit may be provided in the consumable chip or in the image forming device. If the above-mentioned current detection unit is provided in the image forming device, the image forming device may send the detected current value to the first control unit 210 through the first communication interface.

Optionally, the above-mentioned first control unit 210 and second control unit 220 may be implemented by MCU respectively.

In the embodiment of the present application, when the first control unit 210 determines that the second control unit 220 does not need to communicate with the image forming apparatus, it controls the second control unit 220 not to start, thereby reducing the power consumption of the second control unit 220 and thereby reducing consumable chips. power consumption; when the first control unit 210 determines that the second control unit 220 needs to communicate with the image forming device and the operating current received by the consumable chip is not less than the preset first current value, it starts the second control unit 220 to ensure that the consumables Normal operation of the chip; when the first control unit 210 determines that the second control unit 220 needs to communicate with the image forming device, and the power supply current received by the consumable chip is less than the preset first current value, the first control unit 210 controls the second control unit 220 not to start, thereby When the working current received by the consumable chip is less than the preset first current value, priority can be given to ensuring the normal operation of the first control unit 210, thereby reducing the probability that the consumable chip cannot work normally due to insufficient power supply.

In the following embodiments of the present application, it is taken as an example that the first control unit and the second control unit are respectively an MCU and a consumable chip, the second communication interface is an I2C interface, and the second power supply interface includes a power supply voltage pin and a ground pin. The specific implementation of the consumable chip shown in Figure 2 is exemplified.

Figure 3 is a second structural schematic diagram of a consumable chip provided by an embodiment of the present application. As shown in Figure 3, the consumable chip may include: a first MCU 310 and a second MCU 320; wherein,

The data pin SDA1 of the first MCU310 and the data pin SDA2 of the second MCU320 can be connected to the data pin SDA0 of the consumable chip respectively, and the clock pin SCL1 of the first MCU310 and the clock pin SCL2 of the second MCU320 can be connected to the consumable chip respectively. clock pin SCL0.

The power supply voltage pin VCC1 of the first MCU310 and the power supply voltage pin VCC2 of the second MCU320 are respectively connected to the power supply voltage pin VCC0 of the consumable chip; the ground pin GND1 of the first MCU310 and the ground pin GND2 of the second MCU320 are respectively connected to the consumable chip. The ground pin of the chip is GND0.

The first control pin C1 of the first MCU310 is connected to the reset pin RESET of the second MCU320. Optionally, the first control pin C1 may be a general purpose input/output port (General Purpose Input/Output Port, GPIO) pin.

The first MCU 310 may be used to: when determining that the second MCU 320 does not need to communicate with the image forming device, output a first signal to the reset pin RESET of the second MCU 320 through the first control pin C1, and the first signal is used to control the second MCU 320 In the reset state, that is, the second MCU 320 is controlled not to start; when it is determined that the second MCU 320 needs to communicate with the image forming device, a second signal is output to the reset pin RESET of the second MCU 320 through the first control pin C1, and the second signal is In order to control the second MCU 320 not to be in the reset state, the second MCU 320 can be started. That is to say, the second signal can be used to start the second MCU 320 .

Optionally, if the reset pin RESET of the second MCU 320 is reset when it receives a low-level signal but does not reset when it receives a high-level signal, the above-mentioned first signal may be a low-level signal and the second signal may be high-level. level signal.

At this time, a brief description of the working principle of the consumable chip is as follows:

The power supply voltage terminal VCC1 of the first MCU 310 is directly connected to the power supply voltage terminal VCC0 of the consumable chip. Therefore, when the image forming apparatus starts to supply power to the consumable chip, the first MCU 310 is normally powered on and started, and the first control pin C1 of the first MCU 310 is connected to the power supply voltage terminal VCC0 of the consumable chip. The reset pin RESET of the second MCU320, the second MCU320 does not start;

After the first MCU 310 is started, when it is determined that the second MCU 320 does not need to communicate with the image forming device, the second MCU 320 is controlled to be in a reset state through the first control pin C1, and the second MCU 320 is not started;

When the first MCU 310 determines that the second MCU 320 needs to communicate with the image forming apparatus, it controls the second MCU 320 not to be in the reset state through the first control pin C1, and the second MCU 320 is powered on and started normally.

Optionally, in order to reduce the problem of consumable chips not working properly due to insufficient power supply, in another embodiment provided by this application, the first MCU 310 can be used for:

When it is determined that the second MCU 320 does not need to communicate with the image forming apparatus, output a first signal to the reset pin RESET of the second MCU 320 through the first control pin C1;

When it is determined that the second MCU 320 needs to communicate with the image forming device, and the power supply current received by the power supply voltage pin VCC0 of the consumable chip is not less than the preset first current value, the reset pin of the second MCU 320 is sent through the first control pin C1 RESET outputs the second signal;

When it is determined that the second MCU 320 needs to communicate with the image forming device, and the supply current received by the power supply voltage pin VCC0 of the consumable chip is less than the preset first current value, the reset pin RESET of the second MCU 320 is sent through the first control pin C1 Output the first signal.

At this time, you can refer to the previous description for the working principle of the consumable chip and will not go into details here.

In the embodiment of the present application shown in Figure 3, the first control pin C1 of the first MCU310 is connected to the reset pin RESET of the second MCU320, thereby controlling the third MCU320 by outputting different signals to the reset pin RESET of the second MCU320. Whether the second MCU320 is in the reset state, thereby controlling the startup of the second MCU320 or Does not start.

Figure 4 is a third structural schematic diagram of a consumable chip according to an embodiment of the present application. As shown in Figure 4, the consumable chip may include: a first MCU 310 and a second MCU 320; wherein,

The power supply voltage pin VCC1 of the first MCU310 is connected to the power supply voltage pin VCC0 of the consumable chip, the power supply voltage pin VCC2 of the second MCU320 is connected to the power supply voltage pin VCC0 of the consumable chip through the first switch K1, and the second control of the first MCU310 Pin C2 is connected to the control end of the first switch K1;

The ground pin GND1 of the first MCU310 and the ground pin GND2 of the second MCU320 are respectively connected to the ground pin GND0 of the consumable chip.

Optionally, the second control pin C2 of the first MCU 310 is connected to the control end of the first switch K1, which may include: the second control pin C2 of the first MCU 310 is connected to the first switch K1 through a resistor (not shown in Figure 4). The control terminal of switch K1.

Optionally, the first switch K1 may be a switching tube, such as a transistor, a MOS tube, etc., or it may be a switching chip.

Optionally, the second control pin C2 may be a GPIO pin.

The first MCU 310 may be used to: when determining that the second MCU 320 does not need to communicate with the image forming device, output a third signal to the control end of the first switch K1 through the second control pin C2, and the third signal is used to control the first switch K1 Disconnect; when it is determined that the second MCU 320 needs to communicate with the image forming device, the fourth signal is output to the control terminal of the first switch K1 through the second control pin C2, and the fourth signal is used to control the first switch K1 to be turned on.

Optionally, if the control end of the first switch K1 is turned off when it receives a low-level signal and turned on when it receives a high-level signal, the above-mentioned third signal may be a low-level signal, and the fourth signal may be a high-level signal. level signal.

The power supply voltage terminal VCC1 of the first MCU310 is directly connected to the power supply voltage terminal VCC0 of the consumable chip, and the power supply voltage pin VCC2 of the second MCU320 is connected to the power supply voltage pin VCC0 of the consumable chip through the first switch K1, so that the image forming apparatus starts to be a consumable chip. When power is supplied, the first MCU310 is powered on and started normally, while the first switch K1 is turned off, and the second MCU320 does not start;

After the first MCU 310 is started, when it is determined that the second MCU 320 does not need to communicate with the image forming device, the first switch is controlled to be disconnected through the second control pin C2, so that the power supply voltage terminal VCC2 of the second MCU 320 is connected to the power supply voltage terminal VCC0 of the consumable chip. Still disconnected, the second MCU320 does not start;

When the first MCU 310 determines that the second MCU 320 needs to communicate with the image forming device, it controls the first switch to be turned on through the second control pin C2, so that the power supply voltage terminal VCC2 of the second MCU 320 is connected to the power supply voltage terminal VCC0 of the consumable chip. MCU320 is powered on and started.

When it is determined that the second MCU 320 does not need to communicate with the image forming apparatus, the second MCU 320 sends a signal to the first control pin C2 through the second control pin C2. The control terminal of switch K1 outputs the third signal;

When it is determined that the second MCU 320 needs to communicate with the image forming device, and the supply current received by the power supply voltage pin VCC0 of the consumable chip is not less than the preset first current value, the second MCU 320 sends a signal to the control end of the first switch K1 through the second control pin C2. Output the fourth signal;

When it is determined that the second MCU 320 needs to communicate with the image forming device, and the power supply current received by the power supply voltage pin VCC0 of the consumable chip is less than the preset first current value, it outputs to the control end of the first switch K1 through the second control pin C2 The third signal.

In the embodiment of the present application shown in Figure 4, the first MCU 310 controls the second MCU 320 to start or not start by controlling the on and off of the first switch K1.

Figure 5 is a fourth structural schematic diagram of a consumable chip according to an embodiment of the present application. As shown in Figure 5, the consumable chip may include: a first MCU 310 and a second MCU 320; wherein,

The power supply voltage pin VCC1 of the first MCU310 and the power supply voltage pin VCC2 of the second MCU320 are respectively connected to the power supply voltage pin VCC0 of the consumable chip; the ground pin GND1 of the first MCU310 is connected to the ground pin GND0 of the consumable chip, and the second MCU320 The ground pin GND2 is connected to the ground pin GND0 of the consumable chip through the second switch K2, and the third control pin C3 of the first MCU310 is connected to the control end of the second switch K2.

Optionally, the third control pin C3 of the first MCU 310 is connected to the control terminal of the second switch K2, which may include: the third control pin C3 of the first MCU 310 is connected to the second switch K2 through a resistor (not shown in Figure 5). The control end of switch K2.

Optionally, the second switch K2 may be a switching tube, such as a transistor, a MOS tube, etc., or it may be a switching chip.

Optionally, the third control pin C3 may be a GPIO pin.

The first MCU 310 may be used to: when determining that the second MCU 320 does not need to communicate with the image forming device, output a fifth signal to the control end of the second switch K2 through the third control pin C3, and the fifth signal is used to control the second switch K2 Disconnect; when it is determined that the second MCU 320 needs to communicate with the image forming device, the sixth signal is output to the control terminal of the second switch K2 through the third control pin C3, and the sixth signal is used to control the second switch K2 to be turned on.

Optionally, if the control end of the second switch K2 is turned off when receiving a low-level signal and turned on when receiving a high-level signal, the fifth signal may be a low-level signal and the sixth signal may be a high-level signal. level signal.

The ground pin GND1 of the first MCU310 is connected to the ground pin GND0 of the consumable chip, and the ground pin GND2 of the second MCU320 is connected to the ground pin GND0 of the consumable chip through the second switch K2. Therefore, when the image forming device starts to power the consumable chip, The first MCU310 is powered on and started normally, and the second switch K2 is turned off, that is, the ground pin GND2 of the second MCU320 is disconnected from the ground pin GND0 of the consumable chip. MCU320 cannot be powered on and started;

After the first MCU 310 is started, when it is determined that the second MCU 320 does not need to communicate with the image forming device, the second switch K2 is controlled to be disconnected through the third control pin C3, so that the ground pin GND2 of the second MCU 320 is connected to the ground pin of the consumable chip. GND0 is still disconnected, and the second MCU320 cannot be powered on and started;

When the first MCU 310 determines that the second MCU 320 needs to communicate with the image forming device, it controls the second switch K2 to be turned on through the third control pin C3, so that the ground pin GND2 of the second MCU 320 is connected to the ground pin GND0 of the consumable chip. The second MCU320 is powered on and started.

When it is determined that the second MCU 320 does not need to communicate with the image forming device, output a fifth signal to the control terminal of the second switch K2 through the third control pin C3;

When it is determined that the second MCU 320 needs to communicate with the image forming device, and the power supply current received by the power supply voltage pin VCC0 of the consumable chip is not less than the preset first current value, the control terminal of the second switch K2 is sent through the third control pin C3. Output the sixth signal;

When it is determined that the second MCU 320 needs to communicate with the image forming device, and the power supply current received by the power supply voltage pin VCC0 of the consumable chip is less than the preset first current value, the output is output to the control end of the second switch K2 through the third control pin C3 The fifth signal.

In the embodiment of the present application shown in FIG. 5 , the first MCU 310 controls the second MCU 320 to start or not start by controlling the on and off of the second switch K2 .

In another embodiment provided by this application, the consumable chip shown in FIGS. 2 to 5 may further include a current detection unit. The current detection unit can be used to: detect the current value of the current received by the power supply voltage pin of the consumable chip, that is, detect the current value of the working current provided by the image forming device for the consumable chip; and also be used to send the detected current value to the first MCU310. Therefore, the current detection unit can provide data support for whether the first MCU 310 starts the second MCU 320.

Taking the consumable chip shown in Figure 3 that also includes a current detection power supply as an example, embodiments of the present application provide another consumable chip with an implementation structure as shown in Figure 6A. Compared with the consumable chip shown in Figure 3, the consumable chip shown in Figure 6A also includes: a current detection unit 610; wherein,

The first end of the current detection unit 610 is connected to the power supply voltage pin VCC0 of the consumable chip, and the second end is connected to the power supply voltage pin VCC1 of the first MCU 310 and the power supply voltage pin VCC2 of the second MCU 320 respectively;

The output terminal OUT1 of the current detection unit 610 is connected to the first receiving terminal A1 of the first MCU 310 .

The current detection unit 610 is used for: detecting the current value of the current received by the power supply voltage pin of the consumable chip, that is, detecting the current value of the operating current provided by the image forming device for the consumable chip; and also for sending the detected current value. to the first MCU310.

The specific circuit implementation structure of the current detection unit 610 is not limited in the embodiments of this application.

The embodiment of the present application provides yet another consumable chip, the implementation structure of which is shown in Figure 6B. in,

The first end of the current measurement unit 610 is connected to the ground pin GND0 of the consumable chip, and the second end is connected to the ground pin GND0 of the consumable chip. The ground pin GND1 of the first MCU310 and the ground pin GND2 of the second MCU320, the third terminal is connected to the power supply voltage pin VCC1 of the first MCU310D and the power supply voltage pin VCC2 of the second MCU320 respectively;

The current detection unit 610 is used to: detect the current value of the operating current provided by the image forming device for the consumable chip; and also to send the detected current value to the first MCU 310 .

Among the consumable chips shown in FIGS. 3 to 5 above, it is taken as an example that the first MCU 310 does not include a reset pin RESET. In another embodiment provided by this application, the first MCU 310 may include a reset pin RESET.

Taking the first MCU 310 of the consumable chip shown in FIG. 3 as an example including the reset pin RESET, the structure of the consumable chip is as shown in FIG. 7 .

Figure 7 is a schematic diagram of the seventh implementation structure of the consumable chip according to the embodiment of the present application. Relative to the consumable chip shown in FIG. 3 , the first MCU 310 in the consumable chip shown in FIG. 7 includes a reset pin RESET. In order to distinguish the reset pin of the first MCU310 from the reset pin of the second MCU320, the reset pin of the first MCU310 is marked as RESET1 and the reset pin of the second MCU320 is marked as RESET2 in FIG. 7 .

As shown in FIG. 7 , the reset pin RESET1 of the first MCU310 is connected to the power supply voltage pin VCC1 of the first MCU310 through a resistor R. Resistor R is optional.

Optionally, the reset pin RESET1 of the first MCU 310 can be connected to the ground pin GND0 of the consumable chip through a capacitor C, and the capacitor C can play a filtering role.

The starting principle of the first MCU310 is explained as follows:

When the image forming apparatus supplies power to the power supply voltage pin VCC0 of the consumable chip, the voltages of the power supply voltage pin VCC1 and the reset pin RESET1 of the first MCU 310 are pulled high, so that the first MCU 310 can start normally.

For the working principle of the consumable chip shown in Figure 7, please refer to the corresponding description in Figure 3 and will not be repeated here.

Among the consumable chips shown in FIGS. 4 and 5 above, the second MCU 320 does not include a reset pin RESET as an example. In another embodiment provided by this application, the second MCU 320 may include a reset pin RESET. At this time, the reset pin of the second MCU 320 can be connected to the power supply voltage pin VCC2 of the second MCU 320 through a resistor, thereby being pulled high simultaneously with the power supply voltage pin VCC2, so that the second MCU 320 is powered on and started.

The circuit connection structure when the second MCU 320 in the consumable chip shown in Figures 4 and 5 includes a reset pin will not be described again here.

The embodiment of the present application also provides another consumable chip. The circuit connection structure of the consumable chip can be referred to the circuit connection structure of the consumable chip shown in Figure 2, which will not be described again here.

It should be noted that the first control unit and the second control unit in the consumable chip shown in Figure 2 may also include a reset pin, and/or the consumable chip shown in Figure 2 may also include the above-mentioned current collection unit. Specifically, For the implementation structure, reference can be made to the foregoing embodiments and will not be described again here.

In this embodiment of the present application, the second control unit 220 is divided into modules according to the functions that need to be performed, and each module corresponds to one or more functions in the second control unit 220 . The second control unit 220 may respectively Control each of the above modules to be in a startup state or a shutdown state. When all modules in the second control unit 220 are in the starting state, it is called the second control unit 220 in the starting state. When at least one module in the second control unit 220 is in the off state, it is called the second control unit 220 In low power consumption state. When all modules in the second control unit 220 are in the off state, the low power consumption state of the second control unit 220 may also be called a sleep state.

Based on the above division of the second control unit 220, the first control unit 210 no longer reduces the power consumption of the consumable chip by controlling whether the second control unit 220 is powered on and started, but by controlling whether the second control unit 220 is powered on or not. The modules that need to be used are turned off to reduce the power consumption of the consumable chip.

Specifically, the first control unit 210 may be used to: when determining that the second control unit 220 does not need to communicate with the image forming apparatus, control the second control unit 220 to be in a low power consumption state; determine that the second control unit 220 needs to communicate with the image forming device through the first module. When communicating with the image forming device and the first module is in a closed state, the second control unit 220 is controlled to start the first module. The above-mentioned first module may be any module included in the second control unit 220 .

Optionally, after the first control unit is powered and started, when it is determined that the second control unit does not need to communicate with the image forming apparatus, it can control the second control unit to be in a low power consumption state, thereby reducing the power consumption of the second control unit 220 of power consumption.

Optionally, the first control unit 210 may also be configured to: after determining that the second control unit 220 completes communication with the image forming device through the first module, control the second control unit 220 to close the first module.

Optionally, in order to better reduce the power consumption of the consumable chip, in order to control the second control unit 220 to be in a low power consumption state when it is determined that the second control unit 220 does not need to communicate with the image forming apparatus, the first control unit 210 specifically It can be used to: when it is determined that the second control unit 220 does not need to communicate with the image forming apparatus, control all modules included in the second control unit 220 to be in a closed state, that is, control the second control unit 220 to sleep.

Optionally, in order to reduce the problem of consumable chips not working properly due to insufficient power supply, in another embodiment provided by this application, the first control unit 210 can be used to:

When it is determined that the second control unit 220 does not need to communicate with the image forming apparatus, control the second control unit 220 to be in a low power consumption state;

When it is determined that the second control unit 220 needs to communicate with the image forming device through the first module and the first module is in a closed state, and it is determined that the operating current received by the consumable chip is not less than the preset second current value, the second control unit 220 is controlled to start The first module;

When it is determined that the second control unit 220 needs to communicate with the image forming device through the first module and the first module is in a closed state, and it is determined that the operating current received by the consumable chip is less than the preset second current value, the second control unit 220 is controlled. One module is in a closed state, that is, the second control unit 220 is controlled to maintain the status of each module and not activate the first module.

Optionally, the first control unit 210 may also be used to: determine that the second control unit 220 needs to communicate with the image forming device through the first module and that the first module is in a closed state, and determine that the operating current received by the consumable chip is less than a preset value. When the current value is at a second value, an indication message is sent to the image forming device, and the second message is used to indicate to the image forming device that the first module is not started.

The method for the first control unit 210 to determine that the operating current received by the consumable chip is not less than the preset second current value can refer to the corresponding description in FIG. 2 and will not be described again here.

It should be noted that the above-mentioned control instructions of the first control unit 210 on the status of each module of the second control unit 220 can be implemented through the communication bus.

The specific value of the preset second current value is not limited in the embodiment of this application.

In a possible implementation, the preset second current value may be less than or equal to the sum of the minimum operating current of the first control unit and the minimum operating current of the second control unit.

In another possible implementation, the first control unit 210 can correspondingly set the above-mentioned second current value based on the different operating currents required when starting different modules in the second control unit 220 . Then, the preset second current value may be less than or equal to the sum of the minimum operating current of the first control unit and the minimum operating current of the second control unit after starting the corresponding module. Taking the second control unit starting the first module as an example, the preset second current value may be less than or equal to the sum of the minimum operating current of the first control unit and the minimum operating current after the second control unit starts the first module.

It should be noted that if the image forming device and the first control unit and the second control unit in the consumable chip communicate through the I2C interface, that is, through the I2C bus, generally the image forming device defaults to the host communication mode, and the consumable chip The first control unit and the second control unit are respectively in slave communication mode. In order to enable the first control unit 210 to control the second control unit 220 to start or shut down the module, the first control unit may first negotiate with the image forming device to form the image. The device converts from the host communication mode to the slave communication mode, and the first control unit converts from the slave communication mode to the host communication mode; after completing the control of the module in the second control unit, the first control unit can convert back to the slave communication mode, the image forming device can switch back to the host communication mode, thereby ensuring the normal execution of subsequent processing procedures of the image forming device and the first control unit.

Taking the first control unit and the second control unit in Figure 2 as an example, the second communication interface of the consumable chip is an I2C interface and the second communication interface includes a power supply voltage pin and a ground pin. Another consumable chip is provided, for example, as shown in Figure 8. The consumable chip may include: a first MCU 310 and a second MCU 320; wherein,

Through FIG. 9 , the information exchange process between the image forming device, the first MCU and the second MCU is exemplified. As shown in Figure 9, it can include:

Step 901: After the image forming device is powered on, the first MCU and the second MCU are powered on and started respectively.

Step 902: The image forming device communicates with the first MCU; the first MCU determines that the second MCU does not need to communicate with the image forming device.

Step 903: The first MCU negotiates with the image forming device, the image forming device switches to the slave communication mode, and the first MCU switches to the host communication mode.

Step 904: The first MCU sends a first control message to the second MCU. The first control message is used to instruct the second MCU to transfer to a low power consumption state; the second MCU responds to the first control message and transfers to a low power consumption state.

It should be noted that one or more modules may be turned off in the low power consumption state of the second MCU, which is not limited in the embodiment of this application.

Step 905: The first MCU negotiates with the image forming device, the image forming device switches to the host communication mode, and the first MCU switches to the slave communication mode.

Step 906: The image forming device communicates with the first MCU; the first MCU determines that the second MCU needs to communicate with the image forming device through the first module and the first module is in a closed state.

Step 907: The first MCU negotiates with the image forming device, the image forming device switches to the slave communication mode, and the first MCU switches to the host communication mode.

Step 908: The first MCU sends a second control message to the second MCU. The second control message is used to instruct the second MCU to start the first module; the second MCU responds to the second control message and starts the first module.

At this time, the second MCU may be in a low power consumption state or may be in a startup state, depending on whether there are other modules in a shutdown state after starting the first module.

Step 909: The first MCU negotiates with the image forming device, the image forming device switches to the host communication mode, and the first MCU switches to the slave communication mode.

Step 910: The image forming device communicates with the second MCU.

Step 911: The image forming device communicates with the first MCU; the first MCU determines that the communication between the second MCU and the image forming device through the first module is completed.

Step 912: The first MCU negotiates with the image forming device, the image forming device switches to the slave communication mode, and the first MCU switches to the host communication mode.

Step 913: The first MCU sends a third control message to the second MCU. The third control message is used to instruct the second MCU to shut down the first module; the second MCU responds to the third control message and shuts down the first module.

Step 914: The first MCU negotiates with the image forming device, the image forming device switches to the host communication mode, and the first MCU switches to the slave communication mode.

After that, you can return to step 906. The main difference is that each time the first MCU determines that the second MCU needs to communicate with the image forming device through the first module, the first module may be the same or different module as the previous time.

In the embodiment of the present application, the first control unit is used to accurately control each module in the second control unit to start when needed and shut down when not needed, thereby reducing the power consumption of the second control unit and further reducing the power consumption of the consumable chip.

An embodiment of the present application also provides a consumable material, which includes a housing, a developer accommodating portion and the aforementioned consumable chip. The developer accommodating portion is located in the housing and is used to accommodate the developer. The consumable chip is arranged on the casing.

In one of the embodiments, the consumable further includes a developer transporting element for transporting the developer.

In one embodiment, the consumables further include a photosensitive drum and a charging roller, and the charging roller is used to charge the photosensitive drum.

An embodiment of the present application also provides another consumable material, which includes a photosensitive drum, a charging roller and a consumable chip. The charging roller is used to charge the photosensitive drum. The consumable chip is the aforementioned consumable chip.

In another consumable chip provided by the embodiment of the present application, the consumable chip may include more than two control units. Taking the consumable chip including the first control unit, the second control unit and the third control unit as an example, the first control unit can still be used as the main control unit to determine whether the second control unit and the third control unit are activated or not. Transition to low power consumption state, etc. are controlled separately. The control strategy of the first control unit for the third control unit may refer to the control strategy of the first control unit for the second control unit in the above embodiments, which will not be described again in the embodiments of this application.

It should be noted that when the consumable chip includes more than two control units, the control unit as the main control unit can be used to interact with the image forming device to complete the process processing related to the use of consumables; and the control unit as the controlled unit It can be used to cooperate with the image forming device to perform data processing in certain processes related to the use of consumables.

FIG. 10 is a schematic diagram of the connection relationship between a consumable chip and an image forming device according to another embodiment of the present application. In this embodiment, the image forming apparatus 100 may include: a processor 101, a memory 102, a power supply module 103, and a current detection module 106. The processor 101 is connected to the memory 102, the power supply module 103 and the current detection module 106 respectively. The current detection module 106 is connected to the ground of the image forming device 100. The image forming device 100 and the consumable chip 110 are connected using an I2C interface. The ground of the consumable chip is The pin GND0 is connected to the current detection module 106 . Among them, the processor 101 is used to control the power supply module 103 to provide current to the consumable chip 110, and the current detection module 106 is used to detect the working current of the consumable chip 110. The processor 101 can read the detection result of the current detection module 106.

As shown in Table 1 and Table 2, the consumable chip 110 includes a first control unit and a second control unit. The working mode of the first control unit includes a low power consumption mode and a full power consumption mode. The working mode of the second control unit includes a Interference mode, low power consumption mode and full power consumption mode, the memory 102 stores reference currents matching the two working modes of the first control unit, and also stores reference currents matching the three working modes of the second control unit. , the processor 101 can verify the consumable chip 110 according to the operating current detected by the current detection module 106 and the reference current stored in the memory 102 .

Table 1 Correspondence between the working mode of the first control unit and the reference current

Table 2 Correspondence between the working mode of the second control unit and the reference current

In the embodiment of the present application, the first control unit is divided into modules according to the functions that need to be performed. Each module corresponds to one or more functions in the first control unit. The first control unit can have One or more modules are turned off, and all modules are in a starting state when the first control unit is in full power consumption mode. In the same way, the second control unit is divided into modules according to the functions that need to be performed. Each module corresponds to one or more functions in the second control unit. When the second control unit is in the interfered mode, the power supply of the second control unit is interrupted. When the reset pin of the second control unit is disconnected or suspended (that is, the second control unit is in an inoperable state), one or more modules of the second control unit may be turned off when it is in low power consumption mode. unit In full power mode all modules are powered on.

When the first control unit is in the low power consumption mode and the second control unit is in the interfered mode, the processor 101 compares the operating current detected by the current detection module 106 with the first reference current value. If they match, the processor 101 determines that the consumable The chip 110 passes the verification, otherwise it is judged that the consumable chip 110 fails the verification. The first reference current value can be set according to the actual situation. For example, as shown in Table 3, the first control unit includes a first module, a second module and other modules, and the memory 102 stores the information related to the first module, the second module and so on. The first value, the second value and other reference values of multiple modules such as the module are one-to-one corresponding. When only the first module in the first control unit is started, the first reference current value is selected as the first value; only the first value in the first control unit is When the second module is started, the first reference current value adopts the second value; when only the first module and the second module in the first control unit are started, the first reference current value adopts the sum of the first value and the second value.

Table 3 Correspondence table between modules of the first control unit and reference values

When the first control unit is in the low power consumption mode and the second control unit is in the low power consumption mode, the processor 101 calculates the sum of the operating current detected by the current detection module 106 and the first reference current value and the third reference current value. By comparison, if they match, it is determined that the consumable chip 110 has passed the verification; otherwise, it is determined that the consumable chip 110 has failed the verification. In the same way, the third reference current value can also be set according to the actual situation. For example, as shown in Table 4, the second control unit includes a third module, a fourth module and other modules, and the memory 102 stores the values of the third module, the fourth module and the like. The fourth module and other modules have one-to-one correspondence of the third value, the fourth value and other reference values. When only the third module in the second control unit is started, the third reference current selects the third value; in the second control unit When only the fourth module is started, the third reference current uses the fourth value; when only the third module and the fourth module in the second control unit are started, the third reference current value uses the sum of the third value and the fourth value.

Table 4 Correspondence table between modules of the first control unit and reference values

When the first control unit is in the low power consumption mode and the second control unit is in the full power consumption mode, the processor 101 calculates the sum of the operating current detected by the current detection module 106 and the first reference current value and the fourth reference current value. By comparison, if they match, it is determined that the consumable chip 110 has passed the verification; otherwise, it is determined that the consumable chip 110 has failed the verification.

When the first control unit is in the full power consumption mode and the second control unit is in the interfered power consumption mode, the processor 101 compares the operating current detected by the current detection module 106 with the second reference current value. If they match, then It is determined that the consumable chip 110 passes the verification, otherwise it is determined that the consumable chip 110 fails the verification.

When the first control unit is in the full power consumption mode and the second control unit is in the low power consumption mode, the processor 101 The operating current detected by the current detection module 106 is compared with the second reference current value and the third reference current value. If they match, it is determined that the consumable chip 110 has passed the verification; otherwise, it is determined that the consumable chip 110 has failed the verification.

When the first control unit is in the full power consumption mode and the second control unit is in the full power consumption mode, the processor 101 calculates the sum of the operating current detected by the current detection module 106 and the second reference current value and the fourth reference current value. By comparison, if they match, it is determined that the consumable chip 110 has passed the verification; otherwise, it is determined that the consumable chip 110 has failed the verification.

The embodiment of the present application provides a consumable material, including any consumable chip provided by the embodiment of the present application.

Embodiments of the present application provide an image forming device, including any consumable chip provided in the embodiments of the present application.

Embodiments of the present application provide an image forming device, including any consumable provided by the embodiments of the present application.

In the embodiments of this application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or" describes the relationship between associated objects, indicating that there can be three relationships. For example, A and/or B can represent the existence of A alone, the existence of A and B at the same time, or the existence of B alone. Where A and B can be singular or plural. The character "/" generally indicates that the related objects are in an "or" relationship. "At least one of the following" and similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can mean: a, b, c, a and b, a and c, b and c or a and b and c, where a, b, c can be single, also Can be multiple.

Those of ordinary skill in the art can realize that each unit and algorithm step described in the embodiments disclosed herein can be implemented by a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In the several embodiments provided in this application, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory; hereinafter referred to as: ROM), random access memory (Random Access Memory; hereinafter referred to as: RAM), magnetic disks or optical disks, etc. A medium on which program code can be stored.

The above are only specific embodiments of the present application. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, and they should be covered by the protection scope of the present application. The protection scope of this application shall be subject to the protection scope of the claims.

Claims

A consumable chip, characterized in that the consumable chip is provided on the consumable, and the consumable chip includes: a first control unit and a second control unit;

When the consumable is installed in the image forming device, the first control unit and the second control unit are electrically connected to the image forming device through the same communication bus;

The first control unit is configured to control the second control unit not to start when it is determined that the second control unit does not need to communicate with the image forming apparatus.
The consumable chip according to claim 1, characterized in that the first control unit is also used for:

When it is determined that the second control unit needs to communicate with the image forming apparatus, the second control unit is started.
The consumable chip according to claim 1, characterized in that the first control unit is also used for:

When it is determined that the second control unit needs to communicate with the image forming device and the operating current provided by the image forming device for the consumable chip is not less than a preset first current value, the second control unit is started.
The consumable chip according to claim 1, characterized in that the first control unit is also used for:

When it is determined that the second control unit needs to communicate with the image forming device, and the operating current provided by the image forming device for the consumable chip is less than a preset first current value, the second control unit is controlled not to start.
The consumable chip according to claim 4, characterized in that the first control unit is further configured to: send a first message to the image forming device, the first message is used to indicate to the image forming device that the The second control unit is not started.
The consumable chip according to any one of claims 3 to 5, characterized in that the first control unit is also used for:

Determine whether the operating current provided by the image forming device for the consumable chip is less than a preset first current value according to the power-on duration of the first control unit; or,

Determine whether the operating current provided by the image forming device for the consumable chip is less than a preset first current according to the power-on duration of the first control unit and whether the first control unit establishes communication with the image forming device. value; or,

According to the power supply status information obtained from the image forming device, it is determined whether the operating current provided by the image forming device to the consumable chip is less than a preset first current value.
The consumable chip according to any one of claims 3 to 5, characterized in that the consumable chip further includes:

A current detection unit, used to detect the current value of the current received by the power supply voltage pin of the consumable chip;

Correspondingly, the first control unit is also used to:

Determine whether the current value detected by the current detection unit is less than a preset first current value.
The consumable chip according to any one of claims 2 to 7, characterized in that the first control pin of the first control unit is connected to the reset pin of the second control unit;

In order to control the second control unit not to start, the first control unit is specifically configured to: The first control pin transmits a first signal to the reset pin of the second control unit; the first signal is used to control the second control unit to be in a reset state;

In order to start the second control unit, the first control unit is specifically configured to: transmit a second signal to the reset pin of the second control unit through the first control pin; the second The signal is used to control the second control unit to be in a starting state.
The consumable chip according to any one of claims 2 to 7, characterized in that the power supply voltage pin of the first control unit is connected to the power supply voltage pin of the consumable chip, and the power supply voltage pin of the second control unit The pin is connected to the power supply voltage pin of the consumable chip through the first switch;

The second control pin of the first control unit is connected to the control end of the first switch;

In order to control the second control unit not to start, the first control unit is specifically configured to: output a third signal to the control end of the first switch through the second control pin; the third signal is used To control the first switch to turn off;

In order to start the second control unit, the first control unit is specifically configured to: output a fourth signal to the control end of the first switch through the second control pin; the fourth signal is used To control the first switch to be turned on.
The consumable chip according to any one of claims 2 to 7, characterized in that the ground pin of the first control unit is connected to the ground pin of the consumable chip, and the ground pin of the second control unit is connected through The second switch is connected to the ground pin of the consumable chip;

The third control pin of the first control unit is connected to the control end of the second switch;

In order to control the second control unit not to start, the first control unit is specifically configured to: output a fifth signal to the control end of the second switch through the third control pin; the fifth signal is used To control the second switch to turn off;

In order to start the second control unit, the first control unit is specifically configured to: output a sixth signal to the control end of the second switch through the third control pin; the sixth signal is used To control the second switch to be turned on.
A consumable chip, characterized in that the consumable chip is provided on the consumable, and the consumable chip includes: a first control unit and a second control unit;

When the consumable is installed in the image forming device, the first control unit and the second control unit are electrically connected to the image forming device through the same communication bus;

The first control unit is configured to: when it is determined that the second control unit does not need to communicate with the image forming device, control the second control unit to be in a low power consumption state; the second control unit is in a low power consumption state. state, at least one module of the second control unit is in a closed state.
The consumable chip according to claim 11, characterized in that the first control unit is also used for:

When it is determined that the second control unit needs to communicate with the image forming device through the first module and the first module is in a closed state, the second control unit is controlled to start the first module.
The consumable chip according to claim 11, characterized in that the first control unit is also used for:

It is determined that the second control unit needs to communicate with the image forming device through the first module and the first module is in a closed state, and the operating current provided by the image forming device for the consumable chip is not less than a preset value. When the second current value is set, the second control unit is controlled to start the first module.
The consumable chip according to claim 12 or 13, characterized in that, in order to realize the control, the second control unit starts the first module, and the first control unit is specifically used to:

A second message is sent to the second control unit, where the second message is used to instruct the first control unit to start the first module.
The consumable chip according to claim 14, characterized in that, in order to implement the sending of the second message to the second control unit, the first control unit is specifically configured to:

The second message is sent to the second control unit via the communication bus.
The consumable chip according to claim 15, characterized in that, before sending the second message to the second control unit through the communication bus, the first control unit is also used to:

Negotiate with the image forming device through the communication bus to switch the image forming device from a host communication mode based on the communication bus to a slave communication mode; switch the first control unit from a host communication mode based on the communication bus to a slave communication mode. Switch the slave communication mode to the master communication mode.
The consumable chip according to any one of claims 13 to 16, characterized in that the first control unit is also used for:

Determine whether the operating current provided by the image forming device for the consumable chip is less than a preset second current value according to the power-on duration of the first control unit; or,

Determine whether the operating current provided by the image forming device for the consumable chip is less than a preset second current according to the power-on duration of the first control unit and whether the first control unit establishes communication with the image forming device. value; or,

According to the power supply status information obtained from the image forming device, it is determined whether the operating current provided by the image forming device to the consumable chip is less than a preset second current value.
The consumable chip according to any one of claims 13 to 16, characterized in that the consumable chip further includes:

a current detection unit, configured to detect the current value of the current received by the power supply voltage pin of the consumable chip; the power supply voltage pin is used to receive the operating current provided by the image forming device for the consumable chip;

Correspondingly, the first control unit is also used to:

Determine whether the current value detected by the current detection unit is less than the preset second current value.
A kind of consumables, characterized by including:

case;

a developer accommodating portion located within the housing for accommodating the developer; and

The chip according to any one of claims 1 to 18.
The consumables according to claim 19, characterized in that the consumables further include:

A developer conveying element for conveying the developer.
The consumables according to claim 20, characterized in that the consumables further include:

photosensitive drum;

A charging roller for charging the photosensitive drum.
A consumable material, characterized in that the consumable material further includes:

photosensitive drum;

a charging roller for charging the photosensitive drum; and

The chip according to any one of claims 1 to 18.
An image forming apparatus, characterized by including the consumable chip according to any one of claims 1 to 18, or the consumable material according to any one of claims 19 to 22.