CN113103765B - Printing consumable authentication method, printing consumable chip, printing consumable and printing system - Google Patents
Printing consumable authentication method, printing consumable chip, printing consumable and printing system Download PDFInfo
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- CN113103765B CN113103765B CN202110359466.0A CN202110359466A CN113103765B CN 113103765 B CN113103765 B CN 113103765B CN 202110359466 A CN202110359466 A CN 202110359466A CN 113103765 B CN113103765 B CN 113103765B
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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
- B41J2/17543—Cartridge presence detection or type identification
- B41J2/17546—Cartridge presence detection or type identification electronically
Abstract
The application relates to a printing consumable authentication method, a printing consumable chip, a printing consumable and a printing system, wherein first authentication data are selected according to a first addressing signal by acquiring the first data reading signal and the first addressing signal initiated by a printer, and the selected first authentication data are read according to the first data reading signal and sent to the printer; determining a second addressing signal according to the first data reading signal; and selecting second authentication data according to the second addressing signal, and under the condition of receiving a second data reading signal initiated by the printer, reading the selected second authentication data and sending the second authentication data to the printer so that the printer authenticates the printing consumables according to the first authentication data and the second authentication data, thereby solving the problem of lower safety of the printing consumables authentication method in the related art and improving the safety of printing consumables authentication.
Description
Technical Field
The application relates to the technical field of printing consumables, in particular to a printing consumable authentication method, a printing consumable chip, a printing consumable and a printing system.
Background
Printer manufacturers often use technical means to limit the reproduction of printing consumables. Taking an ink cartridge as an example, when the ink runs out, the remaining ink amount data in the ink cartridge is written as a fixed value and cannot be rewritten, and even if ink is added to the ink cartridge, the printer still cannot print because information indicating that the remaining ink amount is insufficient is read in the ink cartridge data.
Fig. 1 is a schematic view showing an authentication principle of an ink cartridge according to the related art, and as shown in fig. 1, a memory a storing wear data such as a remaining amount of ink is provided in an original ink cartridge. The printer comprises a control interface and an address selecting interface, wherein the control interface and the address selecting interface are electrically connected with the memory A, a read/write command is sent to the memory A through the control interface, and data of the memory A are accessed through the address selecting interface. For example, when the remaining amount of ink changes, the printer initiates an ink remaining amount change command to the memory a through the control interface to update the remaining amount of ink in the memory a, and the value of the memory a can only change in a single direction.
However, the ink box authentication method is easy to crack, in the prior art, the data interface of the non-original chip is directly connected with the data line of the printer, meanwhile, the communication between the printer and the data interface of the ink box is cut off, when the printer initiates a read/write command to the ink box, the read/write command can only enter the memory of the non-original chip, and only the data in the non-original chip is read/written.
At present, no effective solution is provided aiming at the problem of lower safety of the printing consumable authentication method in the related technology.
Disclosure of Invention
The embodiment of the application provides a printing consumable authentication method, a printing consumable chip, a printing consumable and a printing system, and at least solves the problem that the printing consumable authentication method in the related technology is low in safety.
In a first aspect, an embodiment of the present application provides a method for authenticating a printing consumable, which is applied to a printing system, where the printing system includes a printer and the printing consumable, where the printing consumable stores first authentication data and second authentication data, and the method includes:
acquiring a first data reading signal and a first addressing signal initiated by the printer, selecting the first authentication data according to the first addressing signal, reading the selected first authentication data according to the first data reading signal and sending the first authentication data to the printer;
determining a second addressing signal according to the first data reading signal;
and selecting the second authentication data according to the second addressing signal, reading the selected second authentication data and sending the second authentication data to the printer under the condition of receiving a second data reading signal initiated by the printer, so that the printer can authenticate the printing supplies according to the first authentication data and the second authentication data.
In some embodiments, the first authentication data comprises wear data and the second authentication data comprises eFUSE data, and in the event that the wear data and the eFUSE data sent to the printer do not match, determining an authentication status of the printing consumable relative to the printer as an authentication failure.
In a second aspect, an embodiment of the present application provides a printing consumable chip, which includes a memory and a processor, which are connected to each other, where the memory stores authentication data, and the processor is configured to execute the printing consumable authentication method according to the first aspect.
In some embodiments, the memory includes a first memory and a second memory, the first memory stores first authentication data, the second memory stores second authentication data, and a data interface of the first memory is connected to an address interface of the second memory.
In some of these embodiments, the second memory comprises an eFUSE memory.
In some embodiments, the printing consumable chip comprises a first printing consumable chip and a second printing consumable chip, the first printing consumable chip comprises a first memory and a second memory, the second printing consumable chip comprises a third memory, a data interface of the third memory is connected with an address interface of the second memory, the first memory and the third memory store first authentication data, the second memory stores second authentication data, and the third memory is used for repairing the first memory.
In some embodiments, the printing consumable chips include a first printing consumable chip and a second printing consumable chip, the first printing consumable chip includes a first memory and a second memory, the second printing consumable chip includes a third memory and a fourth memory, a data interface of the third memory is connected to an address interface of the fourth memory, the first memory and the third memory store first authentication data, the second memory and the fourth memory store second authentication data, the third memory is used for repairing the first memory, and the fourth memory is used for repairing the second memory.
In a third aspect, an embodiment of the present application provides a printing consumable, which includes a printing consumable body and a printing consumable chip as described in the second aspect above, wherein the printing consumable chip is attached to the printing consumable body.
In some of these embodiments, the printing consumable body comprises an ink cartridge.
In a fourth aspect, embodiments of the present application provide a printing system, which includes a printer and the printing supplies as described in the third aspect, wherein the printer is connected with the printing supplies.
Compared with the prior art, the printing consumable authentication method, the printing consumable chip, the printing consumable and the printing system provided in the embodiment solve the problem that the printing consumable authentication method in the prior art is low in safety, and improve the safety of printing consumable authentication.
The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more concise and understandable description of the application, and features, objects, and advantages of the application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic view of an ink cartridge authentication principle according to the related art;
FIG. 2 is a flowchart of a method for authenticating a printing consumable according to an embodiment of the present application;
FIG. 3 is a first schematic structural diagram of a printing consumable chip according to an embodiment of the present application;
FIG. 4 is a second schematic structural diagram of a printing consumable chip according to an embodiment of the present application;
FIG. 5 is a third schematic structural diagram of a printing consumable chip according to an embodiment of the present application;
fig. 6 is a hardware configuration diagram of a printing consumable according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without making any creative effort belong to the protection scope of the present application.
It is obvious that the drawings in the following description are only examples or embodiments of the present application, and that it is also possible for a person skilled in the art to apply the present application to other similar contexts on the basis of these drawings without inventive effort. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly and implicitly understood by one of ordinary skill in the art that the embodiments described herein may be combined with other embodiments without conflict.
Unless otherwise defined, technical or scientific terms referred to herein should have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing the invention (including a single reference) are to be construed in a non-limiting sense as indicating either the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as referred to herein means two or more. "and/or" describes the association relationship of the associated object, indicating that there may be three relationships, for example, "a and/or B" may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.
The embodiment provides a printing consumable authentication method which is applied to a printing system, wherein the printing system comprises a printer and a printing consumable, and the printing consumable stores first authentication data and second authentication data. FIG. 2 is a flowchart of a method for authenticating a printing consumables according to an embodiment of the present application, as shown in FIG. 2, the flowchart includes the following steps:
step S101, a first data reading signal and a first address selecting signal initiated by the printer are obtained, first authentication data are selected according to the first address selecting signal, the selected first authentication data are read according to the first data reading signal, and the first authentication data are sent to the printer.
The printer is connected to an address selection interface of the printing consumables through an address selection signal line and is connected to a data interface of the printing consumables through a data signal line. The first address selection signal is used for determining an address of the first authentication data to select the first authentication data, and the first data read signal is used for reading the selected first authentication data.
Step S102, a second addressing signal is determined according to the first data reading signal.
The first data reading signal is matched with the first addressing signal to obtain a second addressing signal, and the second addressing signal is used for determining the address of the second authentication data so as to select the second authentication data, so that the first authentication data and the second authentication data have relevance.
There are various ways of obtaining the second address selection signal by matching the first data reading signal with the first address selection signal, for example, any one of logical operation methods of bitwise and, bitwise or, bitwise exclusive or of the first data reading signal and the first address selection signal may be adopted to obtain the second address selection signal, or an operation method more complicated and more cumbersome than the listed operation methods may also be adopted, and this embodiment is not limited.
And step S103, selecting second authentication data according to the second addressing signal, reading the selected second authentication data and sending the second authentication data to the printer under the condition that a second data reading signal initiated by the printer is received, so that the printer can authenticate the printing supplies according to the first authentication data and the second authentication data.
The second data reading signal is used for reading the selected second authentication data, and after the first authentication data and the second authentication data are sent to the printer, the printing supplies pass the authentication of the printer only when the first authentication data and the second authentication data meet the relevance specified by the printer.
Compared with the prior art, the authentication method for the printing consumables is not easy to crack, even if the data interface of the non-original printing consumables is directly connected with the data line of the printer, the communication between the printer and the data interface of the printing consumables is cut off, when the printer sends a read/write command to the printing consumables, although the first authentication data or the second authentication data is rewritten, the first authentication data and the second authentication data sent to the printer cannot meet the designated relevance of the printer, and therefore the non-original printing consumables cannot pass the authentication. Through the steps, the problem that the printing consumable authentication method is low in safety is solved, and the safety of printing consumable authentication is improved.
When the printing consumables leave the factory, some parameters are set to preset initial state, and these parameters include non-curing parameter and curing parameter, and non-curing parameter can be along with the use of printing consumables and change gradually, and the curing parameter will be unchangeable, and when the printing consumables lost to the degree of predetermineeing, the printer will detect whether the change of non-curing parameter reaches the default, if, then confirm that the printing consumables can't pass through the authentication, need more new printing consumables promptly.
In some of these embodiments, the first authentication data, the second authentication data may be any one of a non-curing parameter and a curing parameter.
In some of these embodiments, the first authentication data is non-curing parameters, the first authentication data includes wear data, the second authentication data includes eFUSE (electrically programmed fuse) data, and in the event that the wear data and the eFUSE data sent to the printer do not match, the authentication status of the printing consumable relative to the printer is determined to be an authentication failure.
Wear data includes, but is not limited to, ink residue, toner. The eFUSE data includes data representing dot information of the eFUSE memory for authentication of the printing supply.
When the loss data and the eFUSE data are sent to the printer for authentication, the loss data and the eFUSE data can be calculated according to a preset logical operation to obtain a first result, and then the first result is compared with a preset result, if the first result is not matched with the preset result, the representative loss data and the eFUSE data do not have relevance, otherwise, the representative loss data and the eFUSE data have relevance. Wherein the preset result is determined according to the first data reading signal. The preset logic operation may be any one of a plurality of logic operation methods, such as an and, an or, an exclusive or, or a more complicated and complicated operation method than the listed ones, and the present embodiment is not limited.
In combination with the authentication method for the printing consumables, the embodiment of the application provides a printing consumables chip, the printing consumables chip includes a memory and a processor which are connected with each other, the memory stores authentication data, and the processor is used for executing the authentication method for the printing consumables of the embodiment.
The printing consumable chip is stored with a computer program, and the processor can execute various functional applications and data processing by running the computer program stored in the printing consumable chip, namely, the printing consumable authentication method is realized. The printing consumable chip may include high speed random access memory, may also include non-volatile memory, and may also include, for example, one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
The method for identifying a printing consumables has been described in the above embodiments, and the present embodiment is not described in detail.
Fig. 3 is a first structural schematic diagram of a printing consumable chip according to an embodiment of the present application, and as shown in fig. 3, the memory includes a first memory and a second memory, the first memory stores first authentication data, the second memory stores second authentication data, and a data interface of the first memory is connected to an address interface of the second memory.
In this embodiment, the printing consumable chip feeds back corresponding authentication data to the printer by reading the first data reading signal and the second data reading signal respectively. The data interface of the first memory is connected with the address interface of the second memory, and the first memory controls the address result of the second memory by matching the first data signal line with the address signal line, so that the data selected from the first memory and the second memory have relevance.
In some of these embodiments, the second memory comprises an eFUSE memory.
each fuse resistor in the eFUSE memory corresponds to one bit, and the fuse resistors can be turned on or blown out by adjusting the voltage of the fuse resistors, so that the authentication data can be modified.
When the data in the first memory is determined by the printer that the printing consumables are used up or damaged, if a new printing consumable is replaced, the printing consumables need to be re-authenticated, which consumes more time and is tedious to operate. In order to solve the problem, in some embodiments, a redundancy backup mechanism is further provided to solve the problem that when the printing supplies are used up or damaged, the printing supplies need to be reinstalled.
Fig. 4 is a schematic structural diagram of a printing consumable chip according to an embodiment of the present application, and as shown in fig. 4, the printing consumable chip includes a first printing consumable chip and a second printing consumable chip, the first printing consumable chip includes a first memory and a second memory, the second printing consumable chip includes a third memory, a data interface of the third memory is connected to an address selecting interface of the second memory, the first memory and the third memory store first authentication data, the second memory stores second authentication data, and the third memory is used for repairing the first memory.
In this embodiment, the first printing consumable chip feeds back corresponding authentication data to the printer by reading the first data reading signal and the second data reading signal respectively, and the second printing consumable chip feeds back corresponding authentication data to the printer by reading the first data reading signal. The third memory is a redundant backup memory of the first memory, and the data of the third memory is matched with the data of the second memory. When the first authentication data in the first memory is sent to the printer and is judged to be used up or damaged, the first authentication data meeting the set requirement can be sent to the printer through the third memory, and the first authentication data of the third memory and the second authentication data of the second memory have relevance. So set up to in time restore the problem that the printing consumables can't pass through the printer authentication, promote the reliability of printing consumables authentication.
In specific implementation, the first memory and the third memory can be switched by switching the connection of the first memory and the third memory to a data signal line of the printer.
In some of these embodiments, the third memory is a redundant backup memory of the first memory, however, the data of the third memory and the data of the second memory do not match. To solve this problem, the data stored in the second memory is modified based on the data stored in the third memory so that the data stored in the third memory and the data stored in the second memory match. In specific implementation, an adjustment parameter indicating a voltage for adjusting the fuse resistor is generated based on the data stored in the third memory, and the voltage of the fuse resistor is adjusted based on the adjustment parameter to modify the data stored in the second memory area, thereby generating data associated with the data stored in the third memory. Wherein the second memory is an eFUSE memory.
Fig. 5 is a third schematic structural diagram of a printing consumable chip according to an embodiment of the present application, and as shown in fig. 5, the printing consumable chip includes a first printing consumable chip and a second printing consumable chip, the first printing consumable chip includes a first memory and a second memory, the second printing consumable chip includes a third memory and a fourth memory, a data interface of the third memory is connected to an address selecting interface of the fourth memory, the first memory and the third memory store first authentication data, the second memory and the fourth memory store second authentication data, the third memory is used for repairing the first memory, and the fourth memory is used for repairing the second memory.
In this embodiment, the first printing consumable chip feeds back corresponding authentication data to the printer by reading the first data reading signal and the second data reading signal respectively, and the second printing consumable chip feeds back corresponding authentication data to the printer by reading the first data reading signal and the second data reading signal respectively. The second printing consumable chip is a redundant backup chip of the first printing consumable chip, and the data of the third memory is matched with the data of the fourth memory. When the authentication data of the first printing consumable chip is sent to the printer and the printing consumable is judged to be used up or damaged, the first authentication data and the second authentication data meeting the set requirements can be sent to the printer through the second printing consumable chip. So set up to in time restore the problem that the printing consumables can't pass through the printer authentication, promote the reliability of printing consumables authentication. In this embodiment, the third memory and the fourth memory are no longer constrained by the first memory and the second memory, so that the backed-up data can meet the relevance requirement set by the printer without being matched with the first printing consumable chip.
During specific implementation, the first printing consumable chip and the second printing consumable chip can be switched by switching the first printing consumable chip and the second printing consumable chip to be connected to the data signal line of the printer.
The printing consumables chip of this application embodiment that combines above-mentioned embodiment, this embodiment provides a printing consumables, and fig. 6 is the hardware structure chart according to the printing consumables of this application embodiment, and as shown in fig. 6, including printing consumables body and the printing consumables chip of above-mentioned embodiment, printing consumables chip attaches to the printing consumables body.
In some of these embodiments, the printing consumable body comprises an ink cartridge.
The printing consumables of this application embodiment that combines above-mentioned embodiment, this embodiment provides a printing system, including the printing consumables of printer and above-mentioned embodiment, printer and printing consumables connect.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A printing consumable authentication method is applied to a printing system, the printing system comprises a printer and a printing consumable, and the printing consumable stores first authentication data and second authentication data, and the method comprises the following steps:
acquiring a first data reading signal and a first address selecting signal initiated by the printer, selecting the first authentication data according to the first address selecting signal, reading the selected first authentication data according to the first data reading signal and sending the first authentication data to the printer;
determining a second addressing signal according to the first data reading signal;
and selecting the second authentication data according to the second addressing signal, reading the selected second authentication data and sending the second authentication data to the printer under the condition of receiving a second data reading signal initiated by the printer, so that the printer can authenticate the printing supplies according to the first authentication data and the second authentication data.
2. The method of claim 1, wherein the first authentication data includes wear data and the second authentication data includes eFUSE data, and wherein in the event that the wear data and the eFUSE data sent to the printer do not match, the authentication status of the printing consumable with respect to the printer is determined to be an authentication failure.
3. A printing consumable chip comprising a memory and a processor connected to each other, the memory storing authentication data, characterized in that the processor is configured to execute the printing consumable authentication method according to any one of claims 1 to 2.
4. The printing consumable chip of claim 3, wherein the memory comprises a first memory and a second memory, the first memory stores first authentication data, the second memory stores second authentication data, and a data interface of the first memory is connected to an address interface of the second memory.
5. The printing consumable chip of claim 4, wherein the second memory comprises an eFUSE memory.
6. The printing consumable chip of claim 5, wherein the printing consumable chip comprises a first printing consumable chip and a second printing consumable chip, the first memory and the second memory are disposed in the first printing consumable chip, the second printing consumable chip comprises a third memory, a data interface of the third memory is connected to an address selecting interface of the second memory, the first memory and the third memory store first authentication data, the second memory store second authentication data, and the third memory is used for repairing the first memory.
7. The printing consumable chip of claim 5, wherein the printing consumable chip comprises a first printing consumable chip and a second printing consumable chip, the first memory and the second memory are disposed in the first printing consumable chip, the second printing consumable chip comprises a third memory and a fourth memory, a data interface of the third memory is connected with an address interface of the fourth memory, the first memory and the third memory store first authentication data, the second memory and the fourth memory store second authentication data, the third memory is used for repairing the first memory, and the fourth memory is used for repairing the second memory.
8. A printing consumable comprising a printing consumable body and a printing consumable chip according to any one of claims 3 to 7, the printing consumable chip being attached to the printing consumable body.
9. The printing consumable of claim 8, wherein the printing consumable body comprises an ink cartridge.
10. A printing system comprising a printer and a printing consumable according to claim 8 or 9, the printer and the printing consumable being connected.
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