Consumable chip authentication method, consumable chip and printing consumable

Abstract

The application relates to a consumable chip authentication method, a consumable chip and a printing consumable. The method comprises the following steps: in response to an authentication request initiated by a printer, sending authentication feedback to the printer; receiving a response message returned by the printer in response to the authentication feedback, and judging whether the response message carries a first identifier indicating that the consumable chip is locked; in the case that the response message carries the first identifier indicating that the consumable chip is locked, updating authentication data carried by the consumable chip when the next authentication feedback is sent; receiving a data reading request returned by the printer and indicating that a preset flag bit is read, sending the first identifier to the printer according to the data reading request, and writing a second identifier into the preset flag bit of the consumable chip before the next authentication feedback is sent by the consumable chip, the second identifier being used for indicating that the consumable chip is not locked, so that the problem that the printing consumable cannot be used due to the fact that the consumable chip is locked is solved, and the consumable chip is prevented from being locked and the printing consumable can be normally used.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing consumables, in particular to a consumable chip authentication method, a consumable chip and a printing consumable. BACKGROUND

[0002] A consumable chip is often configured on a printing consumable, and the consumable chip is used to authenticate whether the printing consumable is legal in cooperation with a printer, wherein the printing consumable includes one of the following: a printing imaging cartridge, an ink cartridge, a toner cartridge and a photosensitive drum.

[0003] During communication between the printer and the printing consumable, authentication is required, that is, the printing consumable sends authentication data to the printer, if the authentication is passed, the normal communication is continued, otherwise, the printer will display an illegal imaging cartridge, and will write lock information into the consumable chip. Wherein, after the consumable chip receives the lock information and writes the lock information into a preset flag bit, the printer will send a data reading request indicating reading the preset flag bit to the consumable chip, the consumable chip will read the data of the preset flag bit according to the data reading request, and send the read data to the printer, to inform the printer that the imaging cartridge is locked. This will cause the imaging cartridge to be unable to be authenticated successfully when being replaced on any printer, resulting in that the imaging cartridge cannot be used normally, and resources are wasted.

[0004] At present, there is no effective solution to the problem that the consumable chip is locked and the printing consumable cannot be used normally in the related art. SUMMARY

[0005] A consumable chip authentication method, a consumable chip and a printing consumable are provided in the embodiment to solve the problem that the consumable chip is locked and the printing consumable cannot be used normally in the related art.

[0006] In a first aspect, a consumable chip authentication method is provided in the embodiment, comprising:

[0007] In response to an authentication request initiated by a printer, sending an authentication feedback to the printer, wherein the authentication feedback carries authentication data;

[0008] Receiving a response message returned by the printer in response to the authentication feedback, and determining whether the response message carries a first identifier indicating that the consumable chip is locked;

[0009] In a case where it is determined that the response message carries the first identifier indicating that the consumable chip is locked, updating the authentication data carried by the consumable chip when issuing a next authentication feedback;

[0010] receiving a data read request returned by the printer and indicating reading the preset flag bit, sending the first identification to the printer according to the data read request, and writing a second identification into the preset flag bit of the consumable chip before the consumable chip sends next authentication feedback, wherein the second identification is used to indicate that the consumable chip is not locked.

[0011] In some embodiments, in a case where it is judged that the response message carries the first identification indicating that the consumable chip is locked, receiving a data read request returned by the printer and indicating reading the preset flag bit, sending the first identification to the printer according to the data read request, and writing a second identification into the preset flag bit of the consumable chip before the consumable chip sends next authentication feedback, wherein the second identification is used to indicate that the consumable chip is not locked comprises:

[0012] writing the second identification into the preset flag bit of the consumable chip;

[0013] receiving a data read request returned by the printer and indicating reading the preset flag bit, and sending the first identification to the printer according to the data read request.

[0014] In some embodiments, in a case where it is judged that the response message carries the first identification indicating that the consumable chip is locked, receiving a data read request returned by the printer and indicating reading the preset flag bit, sending the first identification to the printer according to the data read request, and writing a second identification into the preset flag bit of the consumable chip before the consumable chip sends next authentication feedback, wherein the second identification is used to indicate that the consumable chip is not locked comprises:

[0015] writing the first identification into the preset flag bit of the consumable chip;

[0016] receiving a data read request returned by the printer and indicating reading the preset flag bit, and sending the preset flag bit data to the printer according to the data read request;

[0017] writing the second identification into the preset flag bit of the consumable chip to cover the first identification.

[0018] In some embodiments, sending authentication feedback to the printer, and receiving a response message returned by the printer in response to the authentication feedback comprises:

[0019] sending first authentication data to the printer;

[0020] receiving a first response message returned by the printer in response to the first authentication data;

[0021] In a case where the first response message indicates that the first authentication data passes authentication, sending second authentication data to the printer.

[0022] In some embodiments, in a case where the first response message indicates that the first authentication data passes authentication, after sending the second authentication data to the printer, the method further comprises: receiving a second response message returned by the printer in response to the second authentication data;

[0023] Determining whether the response message carries the first identifier indicating that the consumable chip is locked comprises: determining whether the second response message carries the first identifier indicating that the consumable chip is locked, and in a case where it is determined that the second response message carries the first identifier indicating that the consumable chip is locked, updating the first authentication data carried by the consumable chip when issuing next authentication feedback.

[0024] In some embodiments, after the preset flag bit of the consumable chip is written with the second identifier, the method further comprises:

[0025] In response to the authentication request initiated by the printer again, sending authentication feedback to the printer, so that the printer authenticates the consumable chip according to the current authentication feedback, wherein the current authentication feedback carries the updated authentication data.

[0026] In some embodiments, in response to the authentication request initiated by the printer again, sending authentication feedback to the printer comprises:

[0027] In a case where the consumable chip and the printer disconnect the communication connection and establish the communication connection again, in response to the authentication request initiated by the printer, sending authentication feedback to the printer.

[0028] In a second aspect, a consumable chip is provided in the embodiments, comprising a storage unit and a processing unit connected to each other, the storage unit stores authentication data, and the processing unit is configured to run the consumable chip authentication method of the first aspect.

[0029] In some embodiments, the storage unit stores first authentication data, and the number of the first authentication data stored in the storage unit is greater than the number of the first authentication data stored in the printer.

[0030] In some embodiments, the storage unit further stores second authentication data, and the first authentication data and the second authentication data are used to jointly authenticate the consumable chip by the printer.

[0031] In a third aspect, a print consumable is provided in the present embodiment, which includes a consumable cartridge and the consumable chip as described above in the second aspect.

[0032] Compared with the related art, the consumable chip authentication method, the consumable chip and the print consumable provided in the present embodiment solve the problem that the print consumable cannot be normally used due to the consumable chip being locked in the related art, and achieve the beneficial effect of preventing the consumable chip from being locked and enabling the print consumable to be normally used.

[0033] The details of one or more embodiments of the present application are presented in the following drawings and description to make other features, objects and advantages of the present application more apparent. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application and illustrate the illustrative embodiments of the present application and its description, which serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0035] Figure 1 is a flowchart of the consumable chip authentication method of the present embodiment;

[0036] Figure 2 is a flowchart of the consumable chip authentication method of the preferred embodiment of the present application;

[0037] Figure 3 is a structural schematic diagram of the consumable chip of the present embodiment;

[0038] Figure 4 is a structural schematic diagram of the print consumable of the present embodiment. DETAILED DESCRIPTION

[0039] In order to more clearly understand the purpose, technical scheme and advantages of the present application, the present application is described and explained below in combination with the drawings and embodiments.

[0040] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the same meaning as those commonly understood by a person skilled in the art to which the present application belongs. In the present application, the terms "one", "a", "an", "the", "these", and the like do not denote a quantity of limitation, and they can be singular or plural. In the present application, the terms "include", "contain", "have", and any variants thereof are intended to cover non-exclusive inclusion; for example, a process, method, and system, product or device including a series of steps or modules (units) are not limited to the listed steps or modules (units), but can include steps or modules (units) not listed, or can include other steps or modules (units) inherent to the process, method, product or device. In the present application, the terms "connected", "connected", "coupled" and the like do not limit to physical or mechanical connection, but can include electrical connection, whether direct or indirect. In the present application, "multiple" means two or more. "And / or" describes the relationship between the associated objects, which means that there can be three relationships, for example, "A and / or B" can mean that A exists alone, A and B exist together, and B exists alone. Generally, the character " / " represents an "or" relationship between the front and rear associated objects. In the present application, the terms "first", "second", "third", and the like are only used to distinguish similar objects, and do not represent a specific order of the objects.

[0041] In the present embodiment, a consumable chip authentication method is provided, which can be applied to a consumable chip or a printing consumable. The method can be implemented by the consumable chip or the printing consumable. The consumable chip can be configured in the printing consumable. The consumable chip can be used to cooperate with the printer to authenticate whether the printing consumable is legal, store printing related information, and record communication state information of the printing consumable in the printing process.

[0042] Figure 1 The flowchart of the consumable chip authentication method of the present embodiment is shown in Figure 1 The flowchart includes the following steps:

[0043] In step S101, in response to an authentication request initiated by the printer, an authentication feedback is sent to the printer, and the authentication feedback carries authentication data.

[0044] After the printer initiates the authentication request to the consumable chip, the consumable chip identifies the authentication request and sends corresponding authentication feedback to the printer. The authentication feedback is a feedback message for indicating the printer to authenticate the consumable chip based on the authentication data. The authentication data can be a command or a command set composed of multiple commands. The authentication data can include one or more authentication data, and the printer can authenticate the consumable chip based on one or more authentication data.

[0045] Step S102, receiving the response message returned by the printer in response to the authentication feedback, and judging whether the response message carries the first identification indicating that the consumable chip is locked.

[0046] The response message carries the content indicating whether the authentication data is legal.

[0047] Case one, for the case where the printer only receives one kind of authentication data, if the authentication data is legal, the response message will carry the content that the consumable chip passes the authentication, otherwise, the response message will carry the content that the consumable chip fails to pass the authentication.

[0048] Case two, for the case where the printer receives multiple kinds of authentication data, if all the authentication data is legal, the response message will carry the content that the consumable chip passes the authentication, otherwise, the response message will carry the content that the consumable chip fails to pass the authentication.

[0049] When the response message carries the content that the consumable chip fails to pass the authentication, in at least one of the above two cases, the response message also carries the first identification indicating that the consumable chip is locked. The first identification is used to indicate that the consumable chip writes a preset flag bit to lock the consumable chip, so that the printing consumable configured with the consumable chip is unavailable.

[0050] Step S103, in the case where it is judged that the response message carries the first identification indicating that the consumable chip is locked, updating the authentication data carried by the consumable chip in the next authentication feedback.

[0051] The updated authentication data can be pre-stored in a certain storage area of the consumable chip. In the case where the consumable chip receives the first identification, the consumable chip reads the new authentication data from the storage area, writes the new authentication data into the authentication feedback before sending the next authentication feedback to the printer, to replace the old authentication data, and the new authentication data is the data that can make the consumable chip pass the authentication of the printer in the next authentication feedback.

[0052] Step S104, receiving the data reading request returned by the printer indicating reading the preset flag bit, and sending the first identification to the printer according to the data reading request, and writing the second identification into the preset flag bit of the consumable chip before the consumable chip sends the next authentication feedback, wherein the second identification is used to indicate that the consumable chip is not locked.

[0053] The preset flag bit refers to a preset byte in the consumable chip, and the second identification can be obtained by performing an exclusive OR operation on the first identification.

[0054] After sending the response message, the printer performs lock detection, i.e. detects whether the consumable chip writes the first identification into the preset flag bit according to the indication in the response message, sends a data reading request indicating reading the preset flag bit to the consumable chip, and if the data sent by the consumable chip is the first identification, the printer considers that the consumable chip has been locked according to the indication, i.e. the printer considers that the consumable chip is unavailable.

[0055] This step can be implemented by the following two embodiments:

[0056] In the first embodiment, the second identification is written into the preset flag bit of the consumable chip, a data reading request indicating reading the preset flag bit is received from the printer, and the first identification is sent to the printer according to the data reading request.

[0057] That is, after receiving the first identification returned by the printer, the consumable chip can first store the first identification in a certain storage area, write the second identification into the preset flag bit, and then read the first identification from the storage area and send the first identification to the printer in the case of receiving the data reading request indicating reading the preset flag bit returned by the printer.

[0058] In the second embodiment, the first identification is written into the preset flag bit of the consumable chip, a data reading request indicating reading the preset flag bit is received from the printer, and the data of the preset flag bit is sent to the printer according to the data reading request, and the second identification is written into the preset flag bit of the consumable chip to overwrite the first identification.

[0059] That is, after receiving the first identification returned by the printer, the consumable chip can first write the first identification into the preset flag bit, read the data (first identification) of the preset flag bit in the case of receiving the data reading request indicating reading the preset flag bit returned by the printer, send the read data (first identification) to the printer, and then rewrite the data of the preset flag bit as the second identification.

[0060] Both of the above two embodiments can avoid the consumable chip from being locked and successfully pass the lock detection of the printer in the case that the consumable chip is identified as illegal by the printer and is about to be locked.

[0061] By the above steps S101-S104, in the case that the consumable chip is to be locked because it is identified as illegal by the printer, by rejecting the writing of the first identification or rewriting the first identification into the second identification, the first identification is returned to the printer to pass the lock detection of the printer, when the consumable chip receives the authentication request initiated by the printer again, the authentication feedback can be sent to the printer again, so that the consumable chip can pass the authentication when the printer authenticates the consumable chip according to the current authentication feedback (carrying updated authentication data), thereby solving the problem that the printing consumable cannot be normally used due to the locking of the consumable chip, and achieving the beneficial effects of preventing the consumable chip from being locked and enabling the printing consumable to be normally used.

[0062] In some embodiments, the authentication data includes first authentication data and second authentication data. The consumable chip sends the first authentication data to the printer first; the printer generates a first response message after processing the first authentication data, and the consumable chip receives the first response message returned by the printer in response to the first authentication data; and in the case that the first response message indicates that the first authentication data passes the authentication, the second authentication data is sent to the printer again.

[0063] In the present embodiment, the consumable chip sends the two kinds of authentication data to the printer in turn during the authentication process with the printer, so that the two kinds of data are processed by the printer in turn, and in the case that the first authentication data passes the authentication of the printer, the consumable chip sends the second authentication data to the printer.

[0064] In some embodiments, the printer stores the first authentication data sent by the consumable chip in a preset record list, and if the first authentication data sent by the consumable chip already exists in the preset record list of the printer and the second authentication data does not pass the authentication of the printer, the printer will lock the consumable chip, i.e. send a response message carrying the first identification indicating that the consumable chip is locked to the consumable chip. If the first authentication data does not exist in the preset record list of the printer, the second authentication data does not have illegal problems for the printer, i.e. the consumable chip will pass the authentication of the printer.

[0065] Further, in the case that the first response message indicates that the first authentication data passes the authentication, after the consumable chip sends the second authentication data to the printer, the printer generates a second response message after processing the second authentication data, and the consumable chip receives the second response message returned by the printer in response to the second authentication data; the consumable chip judges whether the second response message carries the first identification indicating that the consumable chip is locked, and in the case that it is judged that the second response message carries the first identification indicating that the consumable chip is locked, the first authentication data carried by the consumable chip when sending the next authentication feedback is updated.

[0066] In this way, when the consumable chip sends the authentication feedback to the printer again, the updated first authentication data does not exist in the preset record list of the printer, so that the problem of illegal second authentication data is eliminated, and the consumable chip is authenticated by the printer.

[0067] In some embodiments, when the consumable chip and the printer are disconnected and then reconnected, the printer initiates an authentication request to the consumable chip, and the consumable chip sends the authentication feedback to the printer again.

[0068] For example, after the printer completes the lock detection and determines that the consumable chip is unavailable, the power supply of the printer or the printing consumable is cut off, or the communication connection between the printer and the printing consumable is disconnected, and then the consumable chip is authenticated again, that is, the consumable chip sends the first authentication data and the second authentication data to the printer in sequence, so that the consumable chip is prevented from being locked and successfully authenticated by the printer.

[0069] The power supply of the printer or the printing consumable is cut off by turning on and off the printer, and the communication connection between the printer and the printing consumable is disconnected by turning on and off the cover of the printer.

[0070] The consumable chip authentication method is described below by means of preferred embodiments.

[0071] In the preferred embodiments, the authentication logic between the consumable chip and the printer is as follows:

[0072] If the first authentication data fails, the second authentication data will not be authenticated; if the first authentication data succeeds and the second authentication data fails, the consumable chip will be locked; if the first authentication data succeeds and the second authentication data succeeds, the consumable chip is authenticated; by modifying the first authentication data, the first authentication data is different from the data stored in the preset record list of the printer, and the first authentication data and the second authentication data can be authenticated.

[0073] The illegality of the authentication data includes two kinds, the first kind is that the data itself has errors, and the second kind is that the data itself has no errors, but does not meet the expectations of the printer. The illegality of the authentication data in the preferred embodiments belongs to the second kind.

[0074] Figure 2 The flowchart of the consumable chip authentication method of the preferred embodiments of the present application is shown in FIG. 1, which includes the following steps: Figure 2

[0075] Step S21, the first authentication data is sent to the printer.

[0076] Step S22, the first response message returned by the printer is received.​

[0077] Step S23, judging whether the first authentication data is authenticated according to the first response message. If yes, executing step S24; if no, ending the flow.

[0078] Step S24, sending the second authentication data to the printer.

[0079] Step S25, receiving the second response message returned by the printer.

[0080] Step S26, judging whether the second authentication data is authenticated according to the second response message. If yes, ending the flow; if no, executing step S27.

[0081] Step S27, updating the first authentication data, and writing the second identification in a preset flag.

[0082] In combination with the consumable chip authentication method of the above-mentioned embodiments, the present embodiment further provides a consumable chip, Figure 3 is a structural schematic diagram of the consumable chip of the present embodiment, as shown in the figure, the consumable chip 30 comprises a storage unit 31 and a processing unit 32 connected with each other, the storage unit 31 stores authentication data, and the processing unit 32 is configured to run the consumable chip authentication method of any of the above-mentioned embodiments. Figure 3

[0083] In some of the embodiments, the storage unit 31 stores first authentication data, and the number of the first authentication data stored in the storage unit 31 is greater than the number of the first authentication data stored in the printer.

[0084] For example, the printer stores N first authentication data in the preset record table, if N+1 first authentication data are stored in the storage unit 31, it can be ensured that there is always one first authentication data not in the preset record table of the printer, so that the first authentication data passes the authentication of the printer, i.e. the consumable chip 30 can be successfully prevented from being locked.

[0085] In some of the embodiments, the storage unit 31 further stores second authentication data, and the first authentication data and the second authentication data are used to cooperatively authenticate the consumable chip 30 by the printer.

[0086] In the present embodiment, a printing consumable is further provided, Figure 4 is a structural schematic diagram of the printing consumable of the present embodiment, as shown in the figure, the printing consumable comprises a consumable cartridge 40 and the consumable chip 30 of any of the above-mentioned embodiments. Figure 4

[0087] In some of the embodiments, the consumable cartridge 40 can be any of an ink cartridge and a toner cartridge.

[0088] ​​It should be noted that the specific examples in the present embodiment can refer to the examples described in the above embodiments and optional implementation manners, which will not be described herein again.

[0089] In addition, in combination with the consumable chip authentication method provided in the above embodiments, a storage medium can also be provided in the present embodiment to implement. The storage medium has a computer program stored thereon; the computer program is executed by a processor to implement any one of the consumable chip authentication methods in the above embodiments.

[0090] It should be understood that the specific embodiments described herein are intended to explain, not limit, the application. Based on the embodiments provided in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0091] Obviously, the drawings are only some examples or embodiments of the present application, and those of ordinary skill in the art can also apply the present application to other similar situations without creative labor. In addition, it can be understood that although the work done in the development process may be complex and long, some design, manufacture or production changes made by those of ordinary skill in the art according to the technical content disclosed in the present application are only routine technical means and should not be regarded as insufficient disclosure of the present application.

[0092] The word "embodiment" in the present application means that the specific features, structures or characteristics described in combination with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor does it mean independence or alternative to other embodiments. Those of ordinary skill in the art can clearly or implicitly understand that the embodiments described in the present application can be combined with other embodiments without conflict.

[0093] The above-described embodiments only express several implementation manners of the present application, which are described in detail and specifically, but should not be understood as limitations on the scope of patent protection. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A consumable chip authentication method characterized by, comprising: sending authentication feedback to the printer in response to an authentication request initiated by the printer, the authentication feedback carrying authentication data; receiving a response message returned by the printer in response to the authentication feedback, and determining whether the response message carries a first identifier indicating that the consumable chip is locked; in a case where it is determined that the response message carries the first identifier indicating that the consumable chip is locked, updating the authentication data carried by the consumable chip when sending next authentication feedback; in a case where it is determined that the response message carries the first identifier indicating that the consumable chip is locked, receiving a data read request returned by the printer indicating reading a preset flag bit, sending the first identifier to the printer according to the data read request, and writing a second identifier into the preset flag bit of the consumable chip before the consumable chip sends next authentication feedback, wherein the second identifier is used to indicate that the consumable chip is not locked comprising: writing the second identifier into the preset flag bit of the consumable chip; receiving a data read request returned by the printer indicating reading the preset flag bit, and sending the first identifier to the printer according to the data read request.

2. The consumable chip authentication method of claim 1, wherein in a case where it is determined that the response message carries the first identifier indicating that the consumable chip is locked, receiving a data read request returned by the printer indicating reading a preset flag bit, sending the first identifier to the printer according to the data read request, and writing a second identifier into the preset flag bit of the consumable chip before the consumable chip sends next authentication feedback, wherein the second identifier is used to indicate that the consumable chip is not locked comprising: writing the first identifier into the preset flag bit of the consumable chip; receiving a data read request returned by the printer indicating reading the preset flag bit, and sending data of the preset flag bit to the printer according to the data read request; writing the second identifier into the preset flag bit of the consumable chip to overwrite the first identifier.

3. The consumable chip authentication method of claim 1, wherein in response to an authentication request initiated by the printer, sending authentication feedback to the printer, and receiving a response message returned by the printer in response to the authentication feedback comprising: sending first authentication data to the printer; receiving a first response message returned by the printer in response to the first authentication data; in a case where the first response message indicates that the first authentication data passes authentication, sending second authentication data to the printer.

4. The consumable chip authentication method according to claim 3, wherein, after sending the second authentication data to the printer in a case where the first response message indicates that the first authentication data passes authentication, the method further comprises: receiving a second response message returned by the printer in response to the second authentication data; ​ The judging whether the response message carries the first identification indicating that the consumable chip is locked comprises: judging whether the second response message carries the first identification indicating that the consumable chip is locked, and updating the first authentication data carried by the consumable chip when sending next authentication feedback in a case that it is judged that the second response message carries the first identification indicating that the consumable chip is locked.

5. The consumable chip authentication method of claim 1, wherein After the preset flag bit of the consumable chip is written with the second identification, the method further comprises: In response to the authentication request initiated by the printer again, sending authentication feedback to the printer, so that the printer authenticates the consumable chip according to the current authentication feedback, wherein the current authentication feedback carries the updated authentication data.

6. The consumable chip authentication method of claim 5, wherein In response to the authentication request initiated by the printer again, sending authentication feedback to the printer comprises: In a case that the consumable chip and the printer are disconnected and then connected again, in response to the authentication request initiated by the printer, sending authentication feedback to the printer.

7. A consumable chip, characterized by The consumable chip comprises a storage unit and a processing unit connected with each other, the storage unit stores authentication data, and the processing unit is configured to execute the consumable chip authentication method in any one of claims 1 to 6.

8. The consumable chip of claim 7, wherein, The storage unit stores first authentication data, and the number of the first authentication data stored in the storage unit is greater than the number of the first authentication data stored in the printer.

9. The consumable chip of claim 8, wherein, The storage unit further stores second authentication data, and the first authentication data and the second authentication data are used to cooperatively authenticate the consumable chip by the printer.

10. A print consumable, characterized by, The printing consumable comprises a consumable cartridge and the consumable chip in any one of claims 7 to 9.

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