CN219392472U - Memory chip, consumable box and image forming device - Google Patents
Memory chip, consumable box and image forming device Download PDFInfo
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- CN219392472U CN219392472U CN202320420223.8U CN202320420223U CN219392472U CN 219392472 U CN219392472 U CN 219392472U CN 202320420223 U CN202320420223 U CN 202320420223U CN 219392472 U CN219392472 U CN 219392472U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The present utility model relates to the field of chip technologies, and in particular, to a memory chip, a consumable cartridge, and an image forming apparatus. The system comprises a main memory chip, a configuration chip, a control unit and a programmable interface, wherein the main memory chip, the configuration chip, the control unit and the programmable interface are arranged in the main memory chip; the main memory chip comprises an identification bit; the configuration chip comprises configuration bits; the identification bit comprises a first value and a second value; when the identification bit is rewritten from a first value to a second value, the serial number of the memory chip is identified as a forbidden state; the configuration bit is used for identifying whether the identification bit can be rewritten; the control unit determines whether the data can be written into the identification bit according to the configuration bit; the programmable interface is used for modifying the information of the configuration bit. The embodiment of the utility model protects the data in the main memory chip by adding the configuration chip corresponding to the main memory chip. Thus, the image forming apparatus cannot rewrite the identification bit data, and further, the image forming apparatus is prevented from blackening and disabling the serial number.
Description
[ field of technology ]
The present utility model relates to the field of chip technologies, and in particular, to a memory chip, a consumable cartridge, and an image forming apparatus.
[ background Art ]
Image forming apparatuses need to rely on various consumables such as toner cartridge, ink cartridge, and ink ribbon, etc. for image formation. For disposable consumables such as ink cartridges, consumable chips are arranged on the consumable cartridges, and the consumable chips store consumable information such as serial numbers, production dates, manufacturers, usage amounts, printed pages or consumption amounts. The image forming apparatus recognizes the source of consumable supplies by reading consumable supply information stored in the consumable supply chip, and records the use condition of the consumable supply.
In the prior art, in order to improve the utilization ratio of the consumable box, the waste consumable box is often recovered, and the consumable is refilled so as to recycle the waste consumable box. However, part of the image forming apparatus marks the serial number of the consumable cartridge that has been discarded and turns black or disabled, thereby causing the recycling consumable cartridge to be not normally used. Specifically, when the consumable in the consumable cartridge is exhausted, the image forming apparatus will kill the data of the kill bit in the consumable chip (write the data of the kill bit into another data). After the death of the death bit data is completed, the image forming device can black or disable the serial number of the consumable chip. Therefore, how to overcome this problem is a current urgent problem.
[ utility model ]
Based on the above problems, the present utility model provides a memory chip, a consumable cartridge, and an image forming apparatus, which can overcome the above problems.
In a first aspect, an embodiment of the present utility model provides a memory chip, including:
the device comprises a main memory chip, a configuration chip, a control unit and a programmable interface;
the main memory chip comprises an identification bit;
the configuration chip comprises configuration bits;
the identification bit comprises a first value and a second value; when the identification bit is rewritten from a first value to a second value, the serial number of the memory chip is identified as a forbidden state;
the configuration bit is used for identifying whether the identification bit can be rewritten;
the control unit determines whether the data can be written into the identification bit according to the configuration bit;
the programmable interface is used for modifying the information of the configuration bit.
In one possible implementation, the method further includes: communication interface
The communication interface is used for receiving the read-write instruction sent by the image forming device and transmitting the read-write instruction to the control unit.
In one possible implementation, the main memory chip, the configuration chip, the control unit and the programmable interface are electrically connected in sequence.
In one possible implementation manner, the main memory chip, the configuration chip and the programmable interface are electrically connected in sequence, and the control unit is electrically connected with the configuration chip.
In one possible implementation, the configuration bits include a first configuration value and a second configuration value; the first configuration value is used for identifying that the information of the identification bit can be rewritten, and the second configuration value is used for identifying that the information of the identification bit can not be rewritten.
In one possible implementation, the main memory chip further includes at least one non-identification bit;
the configuration bit is also used to identify whether the non-identification bit can be rewritten.
In one possible implementation, the main memory chip and the configuration chip are both charged erasable programmable read-only memories.
In a second aspect, an embodiment of the present utility model provides a consumable cartridge, where the consumable cartridge is provided with the memory chip described in the first aspect.
In a third aspect, an embodiment of the present utility model provides an image forming apparatus provided with the consumable cartridge of the second aspect.
According to the memory chip, the consumable box and the image forming device provided by the embodiment of the utility model, the configuration chip corresponding to the main memory chip is added to protect the identification bit in the main memory chip, so that the data of the identification bit is prevented from being burnt by the image forming device, the image device cannot trigger the subsequent serial number to be black or disabled, and the memory chip can be recycled.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present specification, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a memory chip according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of another memory chip according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of another memory chip according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of another memory chip according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram of a memory chip according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of another memory chip according to an embodiment of the present utility model;
FIG. 7 is a schematic diagram of another memory chip according to an embodiment of the present utility model;
fig. 8 is a schematic structural diagram of a consumable cartridge according to an embodiment of the present utility model.
[ detailed description ] of the utility model
For a better understanding of the technical solutions of the present specification, 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 only some, but not all, of the embodiments of the present description. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are intended to be within the scope of the present disclosure.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In order to solve the problem that the serial number of the consumable box is disabled and cannot be recycled, the embodiment of the utility model protects the data in the main memory chip by arranging the configuration chip corresponding to the main memory chip. When the information of the identification bit is protected by the configuration bit, the image forming apparatus is prevented from overwriting the identification bit. When the data overwrite is unsuccessful, the image forming apparatus cannot trigger the subsequent blackening and disabling mechanism, thereby preventing the serial number from being blacked and disabled.
The embodiment of the utility model provides a memory chip, which comprises a main memory chip, a configuration chip, a control unit and a programmable interface. Fig. 1 is a schematic structural diagram of a memory chip according to an embodiment of the present utility model. As shown in fig. 1, the memory chip 100 includes a main memory chip 101, a configuration chip 102, a control unit 103, and a programmable interface 104. The main memory chip 101, the configuration chip 102, the control unit 103, and the programmable interface 104 are electrically connected in this order. The main memory chip 101 is provided with an identification bit (i.e., the above-described crash bit) including a first value and a second value. When the identification bit is rewritten from the first value to the second value, the serial number of the identification memory chip is in a disabled state. For example, the identification bit is set to a first value (0) when shipped, and when the image forming apparatus detects that the consumable in the consumable cartridge is exhausted, the information of the identification bit is rewritten to a second value (1).
The configuration chip 102 includes configuration bits for identifying whether the identification bits in the main memory chip 101 can be rewritten. Specifically, the configuration bits include a first configuration value and a second configuration value. The first configuration value is used for identifying information of the identification bit and the second configuration value is used for identifying information of the identification bit and cannot be rewritten. For example, when the configuration bit is 0, it indicates that the identification bit information can be rewritten, and when the configuration bit is 1, it indicates that the identification bit information cannot be rewritten. Alternatively, the configuration bit of 1 indicates that the identification bit information can be rewritten, and the configuration bit of 0 indicates that the identification bit information cannot be rewritten.
The control unit 103 is arranged to determine whether data can be written to the identification bits based on the configuration bits. The programmable interface 104 is used to modify the information of the configuration bits. Specifically, the user may connect with the programmable interface 104 through a device such as an upper computer or an upgrade device, and further send a configuration bit writing instruction to the control unit 103 through the programmable interface 104, where the control unit 103 performs a writing operation on the configuration bit.
Fig. 2 is a schematic structural diagram of another memory chip according to an embodiment of the present utility model. As shown in fig. 2, the main memory chip 101, the configuration chip 102, and the programmable interface 104 are electrically connected in this order, and the control unit 103 is electrically connected to the configuration chip 102. Unlike the memory chip shown in fig. 1, the programmable interface 104 is directly connected to the configuration chip 102, so that information of configuration bits can be modified without passing through the control unit 103.
Fig. 3 is a schematic structural diagram of another memory chip according to an embodiment of the utility model. As shown in fig. 3, the memory chip 100 further includes a communication interface 105. The communication interface 105 is connected to the control unit 103. The communication interface 105 may receive a read-write instruction transmitted from an external image forming apparatus and transfer the instruction to the control unit 103. The control unit 105 determines whether to execute the read-write instruction according to configuration bits in the configuration chip after receiving the read-write instruction.
When the image forming apparatus detects that the consumable in the consumable cartridge is exhausted, the data of the identification bit is rewritten. After the data of the identification bit is rewritten successfully, the image forming device considers that the consumable box is complete in service life, and then black and forbids the serial number of the consumable box. Because of the protection mechanism of the configuration chip 102, the image forming apparatus cannot rewrite the data of the identification bit in the main memory chip 101. After the multiple times of overwriting fails, the image forming apparatus considers that the memory chip 100 is abnormal and reports errors, but the consumable in the consumable box is exhausted at this time, and the memory chip 100 prevents the black drawing and disabling mechanism of the image forming apparatus while the service life is completed.
As shown in fig. 4, in some embodiments, the communication interface 105 is connected to the control unit 103, the programmable interface 104 is connected to the configuration chip 102, and when the information of the configuration chip 102 needs to be modified, devices such as an upper computer or an upgrade device are electrically connected to the storage chip through the programmable interface 104; when the read-write control is printed, the image forming apparatus is electrically connected to the memory chip through the communication interface 105.
In some embodiments, the main memory chip is provided with not only the identification bit but also at least one non-identification bit. Correspondingly, the configuration bit may also be used to identify whether the non-identification bit may be overwritten. Fig. 5 is a schematic diagram of a memory chip according to an embodiment of the present utility model. As shown in fig. 5, the main memory chip includes a plurality of memory cells therein, each for storing data. The identification bits described above are stored in one of the memory cells. A plurality of configuration bits are arranged in the configuration chip. Each memory cell corresponds to a unique configuration bit. The memory address of the memory cell and the memory address of the configuration bit corresponding thereto may be a mapping relationship. The non-identification bit is used to identify the consumable quantity exhaustion state, consumable information, and the like.
When only the configuration bit corresponding to the identification bit is in a state that the configuration bit can not be rewritten, other memory units can perform normal write instructions without being influenced. Therefore, by setting the configuration bit corresponding to the memory cell in which the identification bit is located so as not to be rewritable, the image forming apparatus is not affected by writing and reading data in other memory cells while the data of the identification bit cannot be rewritten by the image forming apparatus.
Because the identification bit data belongs to the data of original equipment manufacturers (Original Equipment Manufacturer, OEM) and is usually in an encrypted state, the firmware of the analysis image forming device can be utilized to find the encryption scheme of the data, the meaning of each data in the main memory chip is analyzed through reverse pushing, and then the identification bit, consumable amount consumption data and the like are found. And (3) reversely pushing the encrypted position of the identification bit by using the analyzed algorithm, so that the storage address of the identification bit is determined in an encrypted state, and further, configuration bits in the same storage address of the configuration chip are configured. The state of the memory chip before executing the write instruction is as shown in fig. 6. The data in the five memory cells in the main memory chip are DL, and the memory cell in which the identification bit is located is the first memory cell on the left side. The corresponding coordinated data in the configuration chip are 1,0, respectively. The memory chip after executing the write instruction is as shown in fig. 7. The memory cell in which the identification bit is located in the main memory chip is inhibited from being rewritten because its corresponding configuration bit is 1, and the data is still DL. And the data in the rest of the memory cells in the main memory chip are all rewritten to DM.
In some embodiments, the number of configuration bits in the configuration memory chip may also be greater than the number of memory cells.
In one specific example, the main memory chip and the configuration chip described above may be implemented in the form of a charged erasable programmable read-only memory (Electrically Erasable Programmable Read Only Memory, EEPROM). The image forming apparatus writes the data in the identification bit as a burning command. The image forming apparatus rewrites the data of the identification bit by a burning method.
In some embodiments, configuration information may also be stored by partitioning a partition in the main memory chip without adding additional configuration chips, thereby reducing costs. Specifically, the memory chip includes a main memory partition and a configuration memory partition. The main storage partition and the configuration storage partition are in a mapping relation, and storage units in the main storage partition correspond to storage units in the configuration storage partition one by one. When the main memory chip receives a write command of the image forming device, a control module in the main memory chip analyzes the write command to determine a target memory unit pointed by the write command, and then searches a configuration bit corresponding to the target memory unit from the configuration partition to determine whether the data in the target memory unit is allowed to be rewritten. If not, no execution or rejection of the write command is performed.
Corresponding to the memory chip, the embodiment of the utility model also provides a consumable box. Fig. 8 is a schematic structural diagram of a consumable cartridge according to the present utility model. As shown in fig. 8, the consumable cartridge includes a printhead 801 and a circuit board 802. The print head 801 is provided therein with the memory chip 803 provided in the above embodiment. The circuit board 802 is connected to the print head 801. Contacts (not shown) are also provided on the circuit board 802 for communicating with the image forming apparatus. The image forming apparatus reads consumable information stored in a memory chip 803 in the printhead 801 based on the contacts and a circuit board 802.
In some embodiments, the memory chip provided in the above embodiments may also be disposed on the circuit board 802. Alternatively, the main memory chip 101 is provided on the print head 801, and the configuration chip 102 is provided on the circuit board 802.
Corresponding to the consumable cartridge, an embodiment of the present utility model provides an image forming apparatus. The image forming apparatus is provided with the above consumable cartridge. The image forming apparatus acquires consumable information of the consumable cartridge by reading a memory chip in the consumable cartridge, and further performs a printing operation or a copying operation based on the consumable cartridge.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (9)
1. A memory chip, comprising:
the device comprises a main memory chip, a configuration chip, a control unit and a programmable interface;
the main memory chip comprises an identification bit;
the configuration chip comprises configuration bits;
the identification bit comprises a first value and a second value; when the identification bit is rewritten from a first value to a second value, the serial number of the memory chip is identified as a forbidden state;
the configuration bit is used for identifying whether the identification bit can be rewritten;
the control unit determines whether the data can be written into the identification bit according to the configuration bit;
the programmable interface is used for modifying the information of the configuration bit.
2. The memory chip of claim 1, further comprising: communication interface
The communication interface is used for receiving the read-write instruction sent by the image forming device and transmitting the read-write instruction to the control unit.
3. The memory chip of claim 1, wherein the main memory chip, the configuration chip, the control unit, and the programmable interface are electrically connected in sequence.
4. The memory chip of claim 1, wherein the main memory chip, the configuration chip, and the programmable interface are electrically connected in sequence, and the control unit is electrically connected to the configuration chip.
5. The memory chip of claim 1, wherein the configuration bits comprise a first configuration value and a second configuration value; the first configuration value is used for identifying that the information of the identification bit can be rewritten, and the second configuration value is used for identifying that the information of the identification bit can not be rewritten.
6. The memory chip of claim 1, wherein the primary memory chip further comprises at least one non-identification bit;
the configuration bit is also used to identify whether the non-identification bit can be rewritten.
7. The memory chip of claim 1, wherein the main memory chip and the configuration chip are both charged erasable programmable read only memory.
8. A consumable cartridge, characterized in that it is provided with a memory chip as claimed in any one of claims 1 to 7.
9. An image forming apparatus, characterized in that the image forming apparatus is provided with the consumable cartridge of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320420223.8U CN219392472U (en) | 2023-03-07 | 2023-03-07 | Memory chip, consumable box and image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320420223.8U CN219392472U (en) | 2023-03-07 | 2023-03-07 | Memory chip, consumable box and image forming device |
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| Publication Number | Publication Date |
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| CN219392472U true CN219392472U (en) | 2023-07-21 |
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| CN202320420223.8U Active CN219392472U (en) | 2023-03-07 | 2023-03-07 | Memory chip, consumable box and image forming device |
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| CN (1) | CN219392472U (en) |
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- 2023-03-07 CN CN202320420223.8U patent/CN219392472U/en active Active
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