CN113352770A - Consumable chip and imaging box - Google Patents
Consumable chip and imaging box Download PDFInfo
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- CN113352770A CN113352770A CN202110787499.5A CN202110787499A CN113352770A CN 113352770 A CN113352770 A CN 113352770A CN 202110787499 A CN202110787499 A CN 202110787499A CN 113352770 A CN113352770 A CN 113352770A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
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Abstract
The invention provides a consumable chip and an imaging box, wherein the consumable chip comprises a first chip used for communicating with imaging equipment and a second chip connected with the first chip; the first chip stores a first serial number; the second chip stores a second serial number, and the second chip is used for rewriting the first serial number in the first chip into the second serial number after the imaging device reads the first serial number in the first chip. The consumable chip and the imaging box provided by the embodiment of the invention can solve the problem that the chip only storing a single serial number cannot be reused, effectively improve the resource utilization rate, and have the advantages of simple structure, easiness in implementation and lower cost.
Description
Technical Field
The invention relates to the technical field of imaging, in particular to a consumable chip and an imaging box.
Background
Along with the continuous development of imaging technology, the application of various imaging devices such as printers is also more and more extensive, and the printer needs the supplementary work that just can accomplish print job of formation of image box such as ink horn, generally is provided with the consumptive material chip in the formation of image box for with printer communication and record formation of image box's information.
When the printer works, the printer can perform interactive actions such as communication, authentication and the like with the consumable chip, and can memorize the serial number in the consumable chip. When the printer detects the same serial number, the printer refuses to recognize the printer, so that the existing ink box cannot be reused, and the resource waste is caused; or the memorized state information of the serial number is embodied on the next chip with the same serial number, and an error occurs.
Disclosure of Invention
In order to solve the technical problems, the invention provides a consumable chip and an imaging box.
In a first aspect, the invention provides a consumable chip comprising a first chip for communicating with an imaging device and a second chip connected to the first chip;
the first chip comprises a first storage unit and a first communication port, and the second chip comprises a second storage unit and a control unit;
the first storage unit is used for storing the first serial number, and the first chip is used for communicating with the imaging device through the first communication port;
the second storage unit is used for storing the second serial number, and the control unit is used for rewriting the first serial number in the first chip into the second serial number after the imaging device reads the first serial number in the first chip.
Optionally, the control unit is further configured to: and if the communication between the first chip and the imaging device is detected to be finished, determining that the imaging device has read the first serial number in the first chip.
Optionally, the second chip further includes a second communication port, the second communication port is connected to the first communication port, and the second chip detects whether communication between the first chip and the imaging device is completed through the second communication port.
Optionally, the second chip is further configured to control the first chip to power up after powering down after the first serial number in the first chip is rewritten into the second serial number, so as to update consumable information corresponding to the second serial number in the first chip.
Optionally, the first chip further includes a first power port, the second chip further includes a second power port, and the second power port includes a power input port and a power output port; the power supply input port of the second chip is used for being connected with the power supply end of the imaging equipment, and the power supply output port is connected with the first power supply port of the first chip; the second chip controls the power-down and power-up of the first chip through the power output port;
or, the consumable chip further comprises a control switch; the first chip comprises a first power port, one end of the control switch is connected with the first power port, and the other end of the control switch is used for being connected with a power supply end of the imaging equipment; the second chip is connected with the control end of the control switch so as to control the power-down and power-up of the first chip through the control switch.
Optionally, the first chip further includes a test port, the second chip further includes a control port, the control port is connected to the test port, and the second chip controls the first chip to enter a test mode through the control port so as to rewrite the first chip.
Optionally, the second chip is further configured to: if the first chip fails to be rewritten, storing a rewriting failure mark; controlling the first chip to be powered on after power failure; after the first chip is powered on again, if the rewriting failure mark is detected, rewriting the first serial number in the first chip to a second serial number again; or, the second chip is further configured to: if the first chip is successfully rewritten, storing a successful rewriting mark; controlling the first chip to be powered on after power failure; and after the first chip is powered on again, if the rewriting success mark is not detected, rewriting the first serial number in the first chip to a second serial number again.
Optionally, the first chip has and can only store one serial number.
In a second aspect, the invention provides an imaging cartridge comprising a cartridge body and a consumable chip according to any one of the first aspect.
According to the consumable chip and the imaging box provided by the invention, the first serial number is stored in the first chip, the second serial number is stored in the second chip, and the second chip is used for rewriting the first serial number in the first chip into the second serial number after the imaging equipment reads the first serial number in the first chip, so that the problem that an ink box cannot be reused can be solved, the problems that the information of the first serial number is reflected in the second serial number and the information is not aligned and the like are avoided, the resource utilization rate is effectively improved, the accuracy is high, the structure is simple, the realization is easy, and the cost is low. The communication of printer normal during operation is only at first chip, through the mode of writing the serial number of second chip to first chip, and the second chip can be miniaturized and low-cost design, has actual realistic meaning. Meanwhile, the requirement of switching the serial number on the storage capacity can be avoided, the chips which cannot switch the serial number or can not contain a plurality of serial numbers can be recycled, and the environment is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts;
fig. 1 is a schematic view of an application scenario of a consumable chip according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a consumable chip according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a connection structure between a consumable chip and an imaging device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a first chip of a consumable chip according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a second chip of the consumable chip according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating a communication connection between a consumable chip and an imaging device according to an embodiment of the present invention;
FIG. 7 is a first schematic diagram illustrating a power supply of a first chip of a consumable chip according to an embodiment of the present invention;
fig. 8 is a second schematic diagram of power supply of the first chip in the consumable chip according to the embodiment of the invention.
Reference numerals:
1-consumable chip 2-imaging box
3-imaging device 10-first chip
20-second chip 101-processing unit
102-first memory cell 103-first power supply port
104-first communication port 105-test port
201-control unit 202-second storage unit
203-second power port 204-second communication port
205-control Port 30-control switch
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic view of an application scenario of a consumable chip according to an embodiment of the present invention. As shown in fig. 1, the consumable chip 1 may be disposed in an imaging cartridge 2, the imaging cartridge 2 may be any device capable of accommodating a consumable, such as carbon powder or ink, and correspondingly, the imaging cartridge 2 may be a carbon cartridge or an ink cartridge.
The consumable chip 1 may be used to record consumable information, the consumable information may include, for example, the remaining amount of ink, the number of printed pages, etc. in the imaging cartridge 2, the consumable chip 1 may communicate with the imaging device 3, and the imaging device 3 may be, for example, any device capable of imaging, such as a printer, a copier, a facsimile machine, etc.
The consumable chip 1 can also store a serial number, the imaging device 3 can normally realize printing and other operations after acquiring the serial number stored in the consumable chip 1, and if the serial number is repeatedly used, problems may be caused.
For example, the consumable chip 1 communicates with the imaging device 3 using a serial number, and assists in realizing printing, after the consumables in the imaging cartridge 2 are consumed, if new consumables are refilled in the imaging cartridge 2 and the imaging cartridge 2 is loaded into the imaging device 3, the consumable chip 1 still communicates with the imaging device 3 using the serial number before, because the imaging device 3 has recorded the serial number, an error occurs easily, normal operation of the imaging device 3 is affected, or information corresponding to the imaging cartridge 2 cannot be correctly reflected.
In order to solve the problem, in the embodiment of the present invention, a first chip and a second chip may be disposed in a consumable chip 1, the first chip communicates with an imaging device 3 first, and reports a first serial number, so that the imaging device 3 may use the first serial number to cover an originally stored serial number, and then the second chip may rewrite the first serial number in the first chip to a second serial number, so that the first chip may subsequently use the second serial number to communicate with the imaging device 3, thereby effectively avoiding an error and improving the working stability of the imaging device 3.
Fig. 2 is a schematic structural diagram of a consumable chip according to an embodiment of the present invention. As shown in fig. 2, the consumable chip 1 may include: a first chip 10 for communicating with the imaging device 3 and a second chip 20 connected to the first chip 10;
the first chip 10 stores a first serial number;
the second chip 20 stores a second serial number, and the second chip 20 is configured to rewrite the first serial number in the first chip 10 to the second serial number after the imaging device 3 reads the first serial number in the first chip 10.
Wherein the first sequence number and the second sequence number may be different sequence numbers. In use, the first chip 10 is connected to the imaging device 3, the imaging device 3 reads the first serial number of the first chip 10, so that the previously recorded serial number of the imaging device 3 is overwritten by the first serial number, then the second chip 20 may erase the first serial number in the first chip 10 and write the second serial number into the first chip 10, and then the imaging device 3 keeps communicating with the first chip 10 through the second serial number.
After the imaging device 3 reads the first serial number in the first chip 10, two results are possible. One is that the first serial number in the first chip 10 is recognized by the image forming apparatus 3, i.e., the image forming apparatus 3 recognizes the first serial number as being legitimate, and the other is that it is not recognized by the image forming apparatus 3. In the case of being recognized by the image forming apparatus 3, the result may be further divided into two types, that is, the serial number recorded before the image forming apparatus 3 is different from the first serial number, that is, the first serial number is determined to be new or unused, and that the serial number recorded before the image forming apparatus 3 is the same as the first serial number, but consumable information corresponding to the first serial number indicates that the consumable in the image forming cartridge 2 is not consumed yet, so that the first serial number may be used continuously.
Without being recognized by the image forming apparatus 3 that the first serial number has been used or that the corresponding consumable information indicates that it has been exhausted to make continued use impossible. The process is complicated if the first serial number in the first chip 10 is identified in multiple cases. In another processing manner, only when the consumable information corresponding to the first serial number indicates that the consumable is exhausted, the improvement may cause that although the first serial number is identified, the image forming apparatus 3 can continue to use the serial number, but the consumable information of the same serial number recorded before is fed back to the current serial number, thereby causing an error.
In the embodiment of the present invention, after the imaging device 3 reads the first serial number of the first chip 10, regardless of whether the first chip 10 is recognized by the imaging device 3, the first serial number in the first chip 10 is erased and rewritten to the second serial number, so that the first serial number in the first chip 10 is only used to cover the serial number already recorded in the imaging device 3, which makes the whole rewriting process simpler and prevents errors or timing delays caused by the judgment of multiple steps.
It should be noted that although the scheme in this embodiment requires two serial numbers, it has a lower cost compared to some other schemes using two or more serial numbers. For example, in one scheme, a plurality of serial numbers can be prestored in a chip, and when the serial numbers need to be switched, the serial numbers are switched according to a preset process, but the chip is expensive, and the existing chip which can only store a single serial number cannot be continuously used; in another scheme, a plurality of chips may be used, each chip prestores a serial number, and switching among a plurality of serial numbers is performed, however, this scheme requires that a plurality of chips can communicate with the imaging device 3, and the additional added structure is complicated and expensive.
Optionally, the first chip may have and only has one serial number. When the first chip 10 can only store one serial number, after the first serial number is read by the imaging device 3, the first serial number stored in the first chip 10 is rewritten into the second serial number, because the imaging device 3 already records the first serial number, normal communication with the imaging device 3 after the second serial number is rewritten can be ensured, and the first chip 10 communicates with the imaging device 3 all the time, and the second chip 20 is only used for detecting and rewriting the serial number, therefore, the structure of the first chip 10 does not need to be adjusted, the structure of the second chip 20 can be made very small, the cost can be effectively controlled, the original first chip 10 can be utilized, and meanwhile, miniaturization and low cost can be achieved, and the practical significance is achieved.
The specifications, models, and the like of the first chip 10 and the second chip 20 may be selected according to actual needs. Optionally, the first chip 10 may be an ASIC (Application Specific Integrated Circuit) chip, and particularly may be an original chip corresponding to the imaging device 3, and the second chip 20 may be an MCU (micro controller Unit, micro control Unit 201) chip.
The consumable chip 1 provided by this embodiment can include the first chip 10 that is used for communicating with imaging device 3 and with the second chip 20 that first chip 10 is connected, first chip 10 stores first serial number, second chip 20 stores the second serial number, just second chip 20 is used for imaging device 3 reads behind the first serial number in first chip 10, will first serial number in the first chip 10 rewrites to the second serial number, can solve the unable used repeatedly's of chip that only stores a single serial number problem, effectively improves resource utilization, and simple structure, easily realizes, and the cost is lower.
Fig. 3 is a schematic view of a connection structure between a consumable chip and an imaging device according to an embodiment of the present invention, and fig. 4 is a schematic view of a structure of a first chip in the consumable chip according to the embodiment of the present invention. FIG. 5 is a schematic structural diagram of a second chip of the consumable chip according to an embodiment of the present invention. As shown in fig. 4 and 5, the first chip 10 and the second chip 20 may be provided with ports to implement corresponding functions.
Specifically, the first chip 10 may include a processing unit 101, a first storage unit 102, a first power port 103, and a first communication port 104, and the second chip 20 may include a control unit 201, a second storage unit 202, and a second power port 203.
The first chip 10 and the second chip 20 are powered by a first power port 103 and a second power port 203, respectively. The processing unit 101 of the first chip 10 can communicate with the imaging device 3 through the first communication port 104 to complete reading and writing of signals. The first storage unit 102 of the first chip 10 is used to store a first serial number, and the second storage unit 202 of the second chip 20 is used to store a second serial number. The first chip 10 is electrically connected to the second chip 20, and the control unit 201 of the second chip 20 is configured to rewrite the first serial number of the first storage unit 102 to the second serial number of the second storage unit 202 after the imaging device 3 reads the first serial number. In addition, the first chip 10 and the second chip 20 may further include other parts such as a ground terminal that assist in realizing the chip functions.
The control unit 201 of the second chip 20 determines whether the imaging device 3 has read the first serial number, and various implementations are possible.
In an alternative implementation manner, the control unit 201 of the second chip 20 may determine whether the imaging device 3 has read the first serial number in the first chip 10 by detecting status data in the first chip 10. Wherein the status data in the first chip 10 is updated after the imaging device 3 reads the first serial number in the first chip 10.
Specifically, after the imaging device 3 reads the first serial number in the first chip 10, certain status data in the first chip 10 is overwritten, and it is possible to determine whether the first serial number overlaps the serial number originally stored in the imaging device 3 or whether the imaging device 3 records the first serial number by reading this status data. Different imaging devices 3 may change different status data, which the present embodiment does not limit.
By the method, whether the imaging device 3 reads the first serial number in the first chip 10 or not can be accurately determined, so that the first serial number is rewritten into the second serial number after the reading is finished, normal transmission of data can be guaranteed, and errors can be avoided.
In another alternative implementation, the control unit 201 of the second chip 20 may detect whether the communication between the first chip 10 and the imaging device 3 is ended, and determine that the imaging device 3 has read the first serial number in the first chip 10 if the communication between the first chip 10 and the imaging device 3 is ended.
Fig. 6 is a schematic diagram of communication connection between a consumable chip and an imaging device according to an embodiment of the present invention. As shown in fig. 6, the second chip 20 may further include a second communication port 204, the second communication port 204 may be connected to the first communication port 104 of the first chip 10, and the second chip 20 detects a communication state between the first chip 10 and the imaging device 3 through the second communication port 204.
Specifically, the first communication port 104 of the first chip 10 may be connected to the imaging device 3 through a first bus, and the second communication port 204 of the second chip 20 may be connected to the first communication port 104 through a second bus. The first chip 10 and the imaging device 3 may communicate with each other through the first bus, and the second chip 20 may obtain a communication signal on the first bus through the second bus to determine whether the communication between the imaging device 3 and the first chip 10 is finished.
Optionally, the first bus and the second bus may be IIC (Inter-Integrated Circuit), and the Integrated Circuit bus may include a data line (SDA) and a clock line (SCL).
Specifically, the first bus may include a first data line and a first clock line, and the second bus may include a second data line and a second clock line. The first data line is connected with the second data line, and the first clock line is connected with the second clock line.
In this way, the second communication port 204 of the second chip 20 accesses the first communication port 104 through the second bus (which may also be considered as accessing the first bus), that is, the first chip 10 and the second chip 20 share the bus with the imaging device 3, and the second chip 20 can detect the communication data in the first bus at the first time, so that the communication state of the first chip 10 and the imaging device 3 can be determined according to the communication data in the first bus.
Optionally, if the second chip 20 acquires preset data through the second communication port 204, it may be determined that the communication between the first chip 10 and the imaging device 3 is finished. The preset data may be any data that can indicate the end of communication and is set according to actual needs, for example, data "0000" may be set to indicate the end of communication, and if "0000" is received from the second bus through the second communication port 204, it indicates that the communication between the first chip 10 and the imaging device 3 is ended.
When data used for indicating the end of communication is detected, the communication state can be entered, so that the direct detection of the communication state is realized, the data analysis and conversion operation is not needed, the process is simple, the accuracy is high, more time can be won for the rewriting operation, the first chip 10 does not need to be improved, a port used for detecting the communication state does not need to be reserved additionally, and the application range is wide.
Further, whether the communication is ended or not can also be determined by timing. Specifically, the second chip 20 may determine that the communication between the first chip 10 and the imaging device 3 is finished after a preset time elapses after it is detected that the first chip 10 and the imaging device 3 start communicating through the second communication port 204.
The preset time may be greater than or equal to a general communication time period between the first chip 10 and the imaging device 3, for example, the preset time may be set to 5 seconds, and after 5 seconds elapses after the first chip 10 and the imaging device 3 start communicating, it may be considered that the communication is ended, and at this time, the serial number in the first chip 10 may be rewritten.
The communication start time of the first chip 10 and the imaging device 3 may be detected in various ways, for example, whether communication is started may be determined by detecting whether data indicating that communication is started appears on a first bus between the first chip 10 and the imaging device 3, or in the case where communication is performed with the imaging device 3 immediately after the first chip 10 is powered on, the time at which the first chip 10 is powered on may be considered as the time at which the first chip 10 and the imaging device 3 start communication.
The scheme of judging the end of communication by timing can effectively reduce the monitoring of data on the first bus, reduce the burden of the second chip and improve the performance of the second chip.
After the first serial number in the first chip 10 is rewritten to the second serial number, other data such as consumable information in the first chip 10 may be updated to ensure subsequent normal operation.
Optionally, the first chip 10 may include a nonvolatile memory and a volatile memory, where the nonvolatile memory may be used to store a serial number, consumable information, printing information, manufacturer information, and the like, and after being powered on, the first chip may load a control logic matched with the serial number, the consumable information, the printing information, the manufacturer information, and the like into the volatile memory according to data of the nonvolatile memory. When the serial number of the first chip 10 is rewritten, the control logic may be different, so that the control logic is loaded into the volatile memory again according to the information related to the second serial number, and thus power-down updating is required.
Alternatively, the imaging device 3 is powered off, restarted or the imaging cartridge 2 is taken out and then loaded for updating, which is complicated to operate, increases the operation steps for the user, and may cause errors because the data of the first chip 10 is not updated if the user does not perform the above operations.
In this embodiment of the present invention, after the first serial number in the first chip 10 is rewritten into the second serial number, the second chip 20 may control the first chip 10 to power up after powering down, so as to update the consumable information corresponding to the second serial number in the first chip 10.
It is understood that different serial numbers may correspond to different consumable information. Alternatively, the second chip 20 may write consumable information corresponding to the second serial number into the first storage unit 102 of the first chip 10 when the first serial number in the first chip 10 is rewritten to the second serial number. After the first chip 10 is powered off and powered on again, the processing unit 101 of the first chip 10 may load the updated consumable information, thereby avoiding an error.
In one example, the second chip 20 may directly supply power to the first chip 10, so as to implement power-up control of the first chip 10 by the second chip 20.
Fig. 7 is a first schematic diagram of power supply of a first chip in a consumable chip according to an embodiment of the present invention. As shown in fig. 7, the imaging device 3 supplies power to the second chip 20, and the second chip 20 supplies power to the first chip 10.
Optionally, the second power port 203 of the second chip 20 may include a power input port and a power output port, the power input port of the second chip 20 may be connected to a power supply terminal of the imaging device 3, the power output port is connected to the first power port 103 of the first chip 10, and the second chip 20 controls power down and power up of the first chip 10 through the power output port.
In practical application, after the imaging device 3 is powered on, the imaging device 3 supplies power to the second chip 20, the second chip 20 simultaneously supplies power to the first chip 10, and after the rewriting operation is completed, the second chip 20 performs power down and power up processing on the first chip 10 once to update the internal data of the first chip 10. The method does not need to add extra devices, and has the advantages of simple control circuit, easy realization and higher integration level.
In another example, the consumable chip 1 may further include a control switch, and the second chip 20 may implement power-on control of the first chip 10 through the control switch.
Fig. 8 is a second schematic diagram of power supply of the first chip in the consumable chip according to the embodiment of the invention. As shown in fig. 8, the imaging device 3 supplies power to the first chip 10 through the control switch 30, and the second chip 20 controls on/off of the control switch 30.
Specifically, one end of the control switch 30 may be connected to the first power port 103 of the first chip 10, the other end of the control switch 30 is used for being connected to the power supply terminal of the imaging device 3, and the second chip 20 may be connected to the control terminal of the control switch 30, so as to control the power-down and power-up of the first chip 10 through the control switch 30.
In practical application, after the imaging device 3 is powered on, the first chip 10 and the second chip 20 may be powered on at the same time, the control switch 30 is a normally closed switch, and after the rewriting operation is completed, the second chip 20 turns off the control switch 30, so that the first chip 10 is powered off, and then turns on the control switch 30, thereby recovering the power supply of the first chip 10 to update the internal data of the first chip 10. In this way, the imaging device 3 supplies power to the first chip 10, and the second chip 20 controls the on-off of the power supply line, so that the power supply is more stable.
In other alternative embodiments, the control switch 30 may not be a normally closed switch. Alternatively, the control switch 30 may be initially off and only on when needed. For example, when the first chip 10 needs to be powered, the second chip 20 controls the control switch 30 to be turned on from off, and after the rewriting is successful, controls the control switch 30 to be turned on after being turned off, so as to update the internal data.
Of course, the data update of the first chip 10 may also be implemented in other manners, for example, the first chip 10 may include a reset port, the second chip 20 may be connected to the reset port of the first chip 10, and the second chip 20 implements the update of the internal data by controlling the first chip 10 to reset.
When the second chip 20 rewrites the serial number of the first chip 10, the second chip 20 may first control the first chip 10 to enter a test mode, rewrite the first serial number in the first chip 10 to a second serial number in the test mode, and exit the test mode after rewriting is completed.
Optionally, the first chip 10 may include a test port 105, the second chip 20 may include a control port 205, the control port 205 is connected to the test port 105, and the second chip 20 controls the first chip 10 to enter or exit a test mode through the control port 205.
Specifically, when the second chip 20 needs to rewrite the serial number of the first chip 10, a control signal such as data for entering a test mode or a high-low level may be sent through the control port 205, and when the test port 105 receives the control signal, the first chip 10 enters the test mode, and in the test mode, the second chip 20 may rewrite the data including the serial number through the bus, for example, send a signal for implementing the rewriting to the first communication port 104 of the first chip 10 through the second communication port 204.
The test port 105 is arranged to avoid the problem that data in the bus collides with data sent by the second chip 20 to the first chip 10 to enter the test mode, which causes errors or confusion, and the arrangement of the test port 105 alone is also simpler in logic control.
In other optional implementation manners, the first chip 10 may also be controlled by the bus to enter the test mode, and then the first chip 10 is rewritten by the bus, which can save the control port 205 and the test port 105, reduce the volume and the cost of the chip, and in addition, the control of the test mode can be completed by the bus, and the serial number can be rewritten, so that the signal does not need to be converted many times, the efficiency is greatly improved, and the control logic is simpler.
Of course, after the first chip 10 is controlled by the test port 105 to enter the test mode, the first chip 10 is continuously rewritten through the test port 105 without occupying a bus, thereby avoiding an influence on the communication between the first chip 10 and the imaging device 20.
On the basis of the technical solutions provided in the foregoing embodiments, it is optional that the second chip 20 is only used to detect whether the imaging device 3 has read the first serial number in the first chip 10 and rewritten the first serial number, and the function of the second chip fails after the rewriting operation is finished. When the first chip 10 is powered by the second chip 20, the second chip 20 only supplies power to the first chip 10 after the rewriting operation is finished, and when the first chip 10 is powered on and off by the control switch 30, the second chip 20 does not perform any turning-off operation on the control switch 30 after the rewriting operation is finished. The control switch 30 may be a normally closed switch or a normally open switch, and the second chip 10 may control the on or off of the control switch 30 according to actual needs.
Alternatively, the second chip 20 may store a successful overwriting flag after successful overwriting on the first chip 10, where the successful overwriting flag is used to prohibit an overwriting operation on the first chip 10. The overwrite success flag may be specifically stored in the second storage unit 202 in the second chip 20. Like this, when first chip 10 communicates with imaging device 3 for the first time, second chip 20 can be after the first serial number in first chip 10 is read by imaging device 3, rewrites the first serial number in first chip 10 for the second serial number, after rewriting succeeds, because the existence changes into success mark, second chip 20 no longer enables the function of rewriting, even follow-up imaging device 3 cuts off the power supply and restarts or imaging box 2 takes out the back and loads into, second chip 20 also no longer carries out extra action, guarantees that first chip 10 and imaging device 3 normally pass.
In addition, the rewriting of the serial number may fail, and if the first serial number is not successfully rewritten or is incomplete, the imaging device 3 and the chip may not be able to continue communication, which may affect normal use.
The rewriting operation can be performed in various ways. Optionally, the second chip 20 may further be configured to: if the rewriting of the first chip 10 fails, storing a rewriting failure mark; controlling the first chip 10 to be powered on after being powered off; after the first chip 10 is powered on again, if the overwrite failure flag is detected, the first serial number in the first chip 10 is overwritten as the second serial number again.
Specifically, the second chip 20 may store a writing failure flag in the second storage unit 202, detect the writing failure flag in the control unit 201, and rewrite the first serial number in the first chip 10 again.
Optionally, when the first chip 10 is rewritten, if one rewriting is successful, the rewriting is not continued, and if the rewriting is not successful after the preset number of times of rewriting, the rewriting may be considered to be failed, at this time, a rewriting failure flag may be stored, and the first chip 10 may be controlled to perform the rewriting operation again after powering down and powering up again.
In practical applications, when the control unit 201 of the second chip 20 detects that the serial number has failed to be rewritten, the rewriting operation may be continued for several times, and generally may be successful after several times of rewriting, and if the serial number has not been rewritten for several times, a rewriting failure flag is generated and stored in the second storage unit 202, the second chip 20 performs power-down processing on the first chip 10, and when the second chip 20 is powered on again, the rewriting operation is performed again when the second chip 20 detects the rewriting failure flag.
In other alternative implementations, the control unit 201 may also generate a writing failure flag to be stored in the second storage unit 202 when it detects that the writing of the serial number fails for the first time, then the second chip 20 performs power down processing on the first chip 10, and when it is powered up again, the second chip 20 performs writing again when it detects the writing failure flag.
Alternatively, after the first chip 10 is powered on, it may be determined whether to rewrite again by detecting a rewrite success flag. Specifically, the second chip 20 may be further configured to: if the first chip 10 is successfully rewritten, storing a successful rewriting mark; controlling the first chip 10 to be powered on after being powered off; after the first chip 10 is powered on again, if the rewriting success flag is not detected, the first serial number in the first chip 10 is rewritten to the second serial number again. For a specific implementation principle, the overwrite failure flag may be referred to, and details are not described here.
By setting the overwrite failure flag or overwrite success flag, and matching the power control relationship of the second chip 20 to the first chip 10, it is possible to ensure that the serial number is overwritten normally.
Optionally, the second storage unit 202 in the second chip 20 may include a serial number storage unit and a nonvolatile storage unit, and the nonvolatile storage unit may be used to store a writing failure flag or a writing success flag, so as to ensure that the writing failure flag or the writing success flag is normally stored.
It is to be understood that the improvements provided in the embodiments of the present invention may be implemented in hardware. For example, the first serial number or the second serial number may specifically be composed of numbers 1 and 0, 1 and 0 may be represented by high and low levels, rewriting the first serial number may be realized by changing the high and low levels, and rewriting when a certain condition is satisfied may be realized by a comparator, a timer, or the like. Those skilled in the art can set the specific hardware implementation according to the actual needs, and the embodiments of the present invention are not limited.
Based on the consumable chip, the embodiment of the invention also provides an imaging box, which comprises a box body and the consumable chip in any one of the embodiments. The specific implementation principle and effect of the imaging cartridge provided by the embodiment of the invention can be seen in the above embodiments, and are not described herein again.
It should be understood that the above-described embodiments are merely illustrative, and the division of the modules is only a logical division, and other division ways may be implemented in practice. The modules described as separate parts may or may not be physically separate, and each functional module in each embodiment of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules may be integrated into one unit.
Specifically, for the division of the chip structure, the division of the control switch, the division of each interface, and the like, the figures show a physical division manner by way of example only, and each portion may be separated or integrated together, for example, the first chip and the second chip may be a combination of two separate chips or two modules integrated in one consumable chip, and the control switch may be a switch separately provided, or may be integrated in the consumable chip, the first chip, or the second chip.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A consumable chip comprising a first chip for communicating with an imaging device and a second chip connected to the first chip;
the first chip comprises a first storage unit and a first communication port, and the second chip comprises a second storage unit and a control unit;
the first storage unit is used for storing the first serial number, and the first chip is used for communicating with the imaging device through the first communication port;
the second storage unit is used for storing the second serial number, and the control unit is used for rewriting the first serial number in the first chip into the second serial number after the imaging device reads the first serial number in the first chip.
2. The consumable chip of claim 1, wherein the control unit is further configured to: and if the communication between the first chip and the imaging device is detected to be finished, determining that the imaging device has read the first serial number in the first chip.
3. The consumable chip of claim 2, wherein the second chip further comprises a second communication port, the second communication port is connected to the first communication port, and the second chip detects whether the communication between the first chip and the imaging device is finished through the second communication port.
4. The consumable chip of claim 1, wherein the second chip is further configured to control the first chip to power up after powering down after rewriting the first serial number in the first chip to the second serial number, so as to update the consumable information corresponding to the second serial number in the first chip.
5. The consumable chip of claim 4,
the first chip further comprises a first power port, the second chip further comprises a second power port, and the second power port comprises a power input port and a power output port; the power supply input port of the second chip is used for being connected with the power supply end of the imaging equipment, and the power supply output port is connected with the first power supply port of the first chip; the second chip controls the power-down and power-up of the first chip through the power output port;
or, the consumable chip further comprises a control switch; the first chip comprises a first power port, one end of the control switch is connected with the first power port, and the other end of the control switch is used for being connected with a power supply end of the imaging equipment; the second chip is connected with the control end of the control switch so as to control the power-down and power-up of the first chip through the control switch.
6. The consumable chip of any one of claims 1-5, wherein the first chip further comprises a test port, the second chip further comprises a control port, the control port is connected to the test port, and the second chip controls the first chip to enter a test mode through the control port to rewrite the first chip.
7. The consumable chip according to any one of claims 1 to 5,
the second chip is further configured to: if the first chip fails to be rewritten, storing a rewriting failure mark; controlling the first chip to be powered on after power failure; after the first chip is powered on again, if the rewriting failure mark is detected, rewriting the first serial number in the first chip to a second serial number again;
or, the second chip is further configured to: if the first chip is successfully rewritten, storing a successful rewriting mark; controlling the first chip to be powered on after power failure; and after the first chip is powered on again, if the rewriting success mark is not detected, rewriting the first serial number in the first chip to a second serial number again.
8. The consumable chip of any one of claims 1-5, wherein the first chip has and stores only one serial number.
9. An imaging cartridge comprising a cartridge body and the consumable chip of any one of claims 1-8.
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Address after: 519060 1st, 2nd, zone a, 3rd, 5th, 6th, 7th, 8th and 9th floors, building 01, No. 83, Guangwan street, Xiangzhou District, Zhuhai City, Guangdong Province Patentee after: Jihai Microelectronics Co.,Ltd. Address before: 519060 1st, 2nd, zone a, 3rd, 5th, 6th, 7th, 8th and 9th floors, building 01, No. 83, Guangwan street, Xiangzhou District, Zhuhai City, Guangdong Province Patentee before: APEX MICROELECTRONICS Co.,Ltd. |
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