CN117922169A

CN117922169A - Consumable chip, working method and consumable box

Info

Publication number: CN117922169A
Application number: CN202311843202.8A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Hangzhou Chipjet Technology Co Ltd
Current assignee: Hangzhou Chipjet Technology Co Ltd
Priority date: 2023-12-27
Filing date: 2023-12-27
Publication date: 2024-04-26

Abstract

The application discloses a consumable chip, a working method and a consumable box, wherein the consumable chip comprises a power-on detection unit, a storage unit and a serial number switching unit; the storage unit stores a plurality of consumable serial number authentication data, authentication states corresponding to the consumable serial numbers and a power-on state of a printer connected with the consumable chip; the power-on detection unit detects the power-on state of the printer based on the signal output by the printer and updates the power-on state of the printer stored in the storage unit; a serial number switching unit for updating the authentication state of the target consumable serial number stored in the storage unit based on the authentication result of the target consumable serial number fed back by the printer; and switching consumable serial number authentication data for authenticating the printer based on at least one of the stored power-on state, the next power-on state detected by the power-on detection unit, and the authentication state of the target consumable serial number when the printer is powered on next time.

Description

Consumable chip, working method and consumable box

Technical Field

The application relates to the technical field of chips, in particular to a consumable chip, a working method and a consumable box.

Background

The printer is an indispensable device in modern offices, performs a printing job by installing a consumable cartridge containing printing consumables, and simultaneously records related information of a consumable serial number of the currently installed consumable cartridge. After the printing consumables contained in the consumable box are used up, if a user wants to add consumables to the consumable box for continuous use, the printer remembers that the consumables of the consumable box corresponding to the consumable serial number are used up, and the consumable box cannot be used any more.

To solve the above problems, the standby consumable serial number authentication data of the storage area may be switched until authentication is passed when the previous consumable serial number of the consumable cartridge cannot pass the printer authentication by storing a plurality of consumable serial numbers in the storage area of the consumable chip of the consumable cartridge. The serial number is often triggered by adopting a mode of plugging the consumable box when the consumable serial number is switched, but the situation of false power-on or burr occurs to the printer in the process of plugging the consumable box, so that the switching stability of the consumable serial number is affected.

Disclosure of Invention

The embodiment of the application aims to provide a consumable chip, a working method and a consumable box, which are used for solving the problem of low stability of switching of consumable serial numbers.

In order to solve the technical problems, the present specification is implemented as follows:

in a first aspect, a consumable chip is provided, comprising: the device comprises a power-on detection unit, a storage unit and a serial number switching unit;

The storage unit is respectively and electrically connected with the power-on detection unit and the serial number switching unit and is used for storing a plurality of consumable serial number authentication data, authentication states corresponding to consumable serial numbers and a power-on state of a printer connected with the consumable chip, wherein the authentication states comprise an authentication state which is not passed through the printer, an authentication state which passes through the printer and an authentication state which is not passed through the printer, and the power-on states comprise a true power-on state and a false power-on state;

the power-on detection unit is used for detecting the power-on state of the printer based on a signal output by the printer when the consumable chip is electrically connected with the printer, and updating the power-on state of the printer stored in the storage unit based on the power-on state;

The serial number switching unit is used for updating the authentication state of the target consumable serial number stored in the storage unit based on the authentication result of the target consumable serial number fed back by the printer; and switching consumable serial number authentication data authenticated with the printer based on at least one of a power-on state stored in the storage unit, a next power-on state of the printer detected by the power-on detection unit, and an authentication state of the target consumable serial number when the printer is powered on next time.

Optionally, the power-on detection unit includes: a trigger, a counter, a comparator and a detection module,

The trigger detects the falling edge or rising edge of the signal output by the printer;

the counter counts the number of falling edges or rising edges of the signal output by the printer;

The comparator determines whether the signal output by the printer is a command signal or a burr signal sent by the printer or not based on the counting result output by the counter, and correspondingly sends a first indication signal for indicating that the signal output by the printer is the command signal sent by the printer or sends a second indication signal for indicating that the signal output by the printer is the burr signal or sends a third indication signal for indicating that the signal output by the printer is not the burr signal to the detection module;

The detection module correspondingly updates the power-on state of the printer stored in the storage unit based on the first indication signal, the second indication signal or the third indication signal.

Optionally, the detection module is specifically configured to:

and if the power-on state of the printer read from the target storage address sector of the storage unit is a false power-on state, writing the true power-on state into the target storage address sector when receiving the first indication signal sent by the comparator.

Optionally, the detection module is specifically configured to:

If the power-on state of the printer is read from the target storage address sector of the storage unit to be the true power-on state, writing the false power-on state into the target storage address sector;

and then when the signal sent by the comparator is received as a first indication signal, the true power-on state is written into the target storage address sector.

Optionally, the detection module is further configured to:

And if the signal sent by the comparator is received as the second indication signal or the third indication signal, the false power-on state of the target storage address sector is maintained.

Optionally, the serial number switching unit is specifically configured to:

If the authentication result of the target consumable serial number fed back by the printer is that the authentication is successful, updating the authentication state of the target consumable serial number stored in the storage unit to be the authentication state passing the printer;

if the authentication result of the target consumable serial number fed back by the printer is authentication failure, updating the authentication state of the target consumable serial number stored in the storage unit to be the authentication state which does not pass through the printer.

Optionally, the serial number switching unit is specifically configured to:

If the authentication state of the target consumable serial number stored in the storage unit is read to be the printer authentication state which is not passed, judging whether the authentication result of the target consumable serial number fed back by the printer is authentication success or authentication failure under the condition that the next power-on state of the printer is detected to be a true power-on state by the power-on detection unit;

If the authentication is successful, directly entering a working state, and updating the authentication state of the target consumable serial number stored in the storage unit into an authentication state passing through the printer; if the authentication fails, the authentication state of the target consumable serial number stored in the storage unit is updated to be the authentication state which does not pass through the printer.

Optionally, the serial number switching unit is specifically configured to:

if the authentication state of the target consumable serial number stored in the storage unit is read to pass the authentication state of the printer, the printer directly enters a working state when the next power-on state of the printer is detected to be a true power-on state by the power-on detection unit.

Optionally, the serial number switching unit is specifically configured to:

If the power-on state stored in the storage unit is a false power-on state and the authentication state of the target consumable serial number is an authentication state of the printer, when the power-on detection unit detects that the next power-on state of the printer is a true power-on state, switching to first consumable serial number authentication data to authenticate with the printer, wherein the first consumable serial number is one consumable serial number which is not authenticated by the printer in the consumable serial numbers.

Optionally, the plurality of consumable serial number authentication data are stored in the storage unit in the form of a code table and a code table pointer, one consumable serial number authentication data is stored in one code table,

The serial number switching unit switches to the first consumable serial number authentication data to authenticate with the printer, and includes:

adding 1 to a code table pointer to point to a next code table of a code table corresponding to the target consumable serial number, wherein the next code table stores the first consumable serial number authentication data;

writing the code table pointer added with 1 into the storage unit;

And when the next power-on state of the printer is the actual power-on state, based on the first consumable serial number authentication data in the code table pointed by the code table pointer stored in the storage unit, authenticating the first consumable serial number authentication data and the printer.

Optionally, a static random access memory is also included,

The serial number switching unit is further configured to: and after the printer is powered on, the target consumable serial number is moved to the static random access memory from the storage unit.

Optionally, the serial number switching unit is specifically configured to:

and if the power-on detection unit detects that the next power-on state of the printer is a false power-on state, maintaining a waiting state until the printer is powered down.

In a second aspect, a method for operating a consumable chip is provided, the method comprising:

detecting the power-on state of the printer based on a signal output by the printer when the consumable chip is electrically connected with the printer;

Updating the power-on state of the printer stored in a storage unit of the consumable chip based on the power-on state, wherein the storage unit is used for storing authentication states corresponding to consumable serial numbers and including a state which is not passed through the printer, an authentication state which is passed through the printer and an authentication state which is not passed through the printer, and a power-on state of the printer, wherein the power-on state comprises a true power-on state and a false power-on state;

Updating the authentication state of the target consumable serial number stored in the storage unit based on the authentication result of the target consumable serial number fed back by the printer;

And when the printer is powered on next time, switching consumable serial number authentication data for authenticating with the printer based on at least one of the power-on state stored in the storage unit, the next power-on state of the printer detected by the power-on detection unit and the authentication state of the target consumable serial number.

Optionally, when the consumable chip is electrically connected with the printer, detecting the power-on state of the printer based on the signal output by the printer includes:

triggering a signal output by the printer to generate a falling edge;

counting the number of falling edges of signals output by the printer;

Determining whether the signal output by the printer is a command signal or a glitch signal sent by the printer;

based on the determination result, the power-on state of the printer stored in the storage unit is correspondingly updated.

Optionally, the updating the power-on state of the printer stored in the storage unit of the consumable chip based on the power-on state includes:

and if the power-on state of the printer is read from the target storage address sector of the storage unit to be the false power-on state, writing the true power-on state into the target storage address sector when the signal output by the printer is determined to be a command signal sent by the printer.

And then when the signal output by the printer is determined to be a command signal sent by the printer, the true power-on state is written into the target storage address sector.

Optionally, the updating the power-on state of the printer stored in the storage unit of the consumable chip based on the power-on state further includes:

If the signal output by the printer is not determined to be a command signal sent by the printer, the false power-on state of the target storage address sector is maintained.

Optionally, the updating the authentication state of the target consumable serial number stored in the storage unit based on the authentication result of the target consumable serial number fed back by the printer includes:

Optionally, the switching of consumable serial number authentication data for authenticating with the printer based on at least one of the power-on state stored in the storage unit, the next power-on state of the printer detected by the power-on detection unit, and the authentication state of the target consumable serial number includes:

If the authentication is successful, directly entering a working state, and updating the authentication state of the target consumable serial number stored in the storage unit into an authentication state passing through the printer;

if the authentication fails, the authentication state of the target consumable serial number stored in the storage unit is updated to be the authentication state which does not pass through the printer.

Optionally, the consumable serial numbers are stored in the storage unit in the form of a code table and a code table pointer, one consumable serial number is stored in one code table,

The switching to the first consumable serial number authentication data to authenticate with the printer includes:

Adding 1 to a code table pointer to point to a next code table of a code table corresponding to the target consumable serial number, wherein the next code table stores the first consumable serial number;

writing the code table pointer added with 1 into the storage unit;

And when the next power-on state of the printer is the actual power-on state, based on the first consumable serial number in the code table pointed by the code table pointer stored in the storage unit, authenticating the first consumable serial number and the printer.

Optionally, the method further comprises:

And after the printer is powered on, the target consumable serial number is moved to a static random access memory of the consumable chip from the storage unit.

In a third aspect, there is provided a consumable cartridge comprising:

A consumable body; and a consumable chip as claimed in the first aspect.

In a fourth aspect, there is provided an electronic device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect.

In a fifth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the second aspect.

In the embodiment of the application, the consumable chip comprises a power-on detection unit, a storage unit and a serial number switching unit; the storage unit is respectively and electrically connected with the power-on detection unit and the serial number switching unit, and is used for storing authentication states of a plurality of consumable serial numbers, corresponding to the consumable serial numbers, and a power-on state of a printer connected with the consumable chip, wherein the authentication states comprise an authentication state which is not passed through the printer, an authentication state which passes through the printer and an authentication state which is not passed through the printer, and the power-on states comprise a true power-on state and a false power-on state; the power-on detection unit is used for detecting the power-on state of the printer based on a signal output by the printer when the consumable chip is electrically connected with the printer, and updating the power-on state of the printer stored in the storage unit based on the power-on state; the serial number switching unit is used for updating the authentication state of the target consumable serial number stored in the storage unit based on the authentication result of the target consumable serial number fed back by the printer; and when the printer is powered on next time, switching consumable serial number authentication data authenticated with the printer based on at least one of the power-on state stored in the storage unit, the next power-on state of the printer detected by the power-on detection unit and the authentication state of the target consumable serial number, detecting the power-on state of the printer through the power-on detection unit so as to identify burrs generated when the consumable box is plugged or false power-on conditions corresponding to a printer non-output signal, executing consumable serial number switching operation of the next step according to the identification result, avoiding unstable factors affecting consumable serial number switching, ensuring that consumable serial numbers are stably and accurately switched until the consumable serial number authentication passes.

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 specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

fig. 1 is a block diagram of a consumable chip according to an embodiment of the present application.

Fig. 2 is a block diagram showing the structure of a power-on detection unit according to an embodiment of the present application.

Fig. 3 is a signal timing diagram of consumable serial number switching according to an embodiment of the present application.

FIG. 4 is a flow chart of a method of operating a consumable chip according to an embodiment of the application

Fig. 5 is an overall flow chart of a working method of a consumable chip according to an embodiment of the present application.

Fig. 6 to 8 are schematic views of the overall flow of consumable serial number switching according to an embodiment of the present application.

Fig. 9 is a schematic diagram of a power-on and power-off process of consumable serial number authentication according to an embodiment of the present application.

Fig. 10 is a block diagram showing the structure of an electronic device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. The reference numerals in the present application are only used for distinguishing the steps in the scheme, and are not used for limiting the execution sequence of the steps, and the specific execution sequence controls the description in the specification.

In order to solve the problems in the prior art, the embodiment of the application provides a consumable chip, a working method thereof and a consumable box.

Fig. 1 is a block diagram of a consumable chip according to an embodiment of the present application, and as shown in fig. 1, a consumable chip 1000 according to an embodiment of the present application includes: a power-on detection unit 1200, a storage unit 1400, and a serial number switching unit 1600.

The storage unit 1400 is electrically connected to the power-on detection unit 1200 and the serial number switching unit 1600, and is configured to store authentication states corresponding to serial numbers of a plurality of consumables, and a power-on state of the printer 2000 connected to the consumable chip 1000, where the authentication states include a state that the printer has not been authenticated, a state that the printer has been authenticated, and a state that the printer has not been authenticated, and the power-on state includes a true power-on state and a false power-on state.

The power-on detection unit 1200 is configured to detect a power-on state of the printer 2000 based on a signal output by the printer 2000 when the consumable chip 1000 is electrically connected to the printer 2000, and update the power-on state of the printer 2000 stored in the storage unit 1400 based on the power-on state;

The serial number switching unit 1600 is configured to update the authentication status of the target consumable serial number stored in the storage unit 1400 based on the authentication result of the target consumable serial number fed back by the printer 2000; and switching consumable serial number authentication data authenticated with the printer 2000 based on at least one of a power-on state stored in the storage unit 1400, a next power-on state of the printer 2000 detected by the power-on detection unit 1200, and an authentication state of the target consumable serial number at the next power-on of the printer 2000.

The memory unit 1400 is a memory area of a consumable chip, for example, the memory unit 1400 includes a Flash memory. The Flash memory is a nonvolatile memory, can still effectively store data for a long time after power failure, and can read data from the Flash memory or write data into the Flash memory only by controlling the read-write time sequence of the Flash memory.

The storage unit 1400 may store a plurality of code table data, where each code table data stores consumable serial number authentication data of the consumable chip, specifically including consumable serial number data, date data, remaining consumable amount data, authentication data related to other serial number authentication (such as consumable manufacturer data, production date data, etc., which is not limited in the present application), consumable box model data, etc. For example, when the consumable contained in the consumable cartridge is exhausted, the user may refill the consumable cartridge with ink, but at this time, the printer side has recorded that the ink amount data of the current serial number belongs to the exhausted state, so that the serial number of the consumable cartridge cannot pass the authentication of the printer, and therefore, the chip storage unit may select to store multiple serial numbers in advance, and switch to other serial numbers of the consumable stored in the storage unit 1400 until passing the authentication of the printer.

The storage unit 1400 also stores authentication states corresponding to serial numbers of the consumables, the authentication states including authentication that has not been authenticated by the printer, authentication that has passed the printer, and authentication that has not passed the printer. The serial number of the target consumable is a brand new serial number which is not authenticated by the printer and is not authenticated and detected by the printer 2000; through the authentication of the printer, it means that the target consumable serial number has been subjected to authentication detection by the printer 2000, and through the authentication, that is, the printer 2000 can perform normal printing work based on the target consumable serial number; the failure of the printer indicates that the target consumable serial number is authenticated by the printer 2000, but the failure of the printer 2000 indicates that the target consumable serial number cannot pass the authentication of the printer 2000, and the normal printing operation cannot be performed, and the serial number switching unit 1600 is required to switch the consumable serial number authentication data in the storage unit 1400, and generally to switch to the brand new serial number authentication data which is not authenticated by the printer 2000, so as to be sent to the printer for authentication next time.

The authentication state of the consumable serial number is detected by the serial number switching unit 1600, and when the consumable chip 1000 is electrically connected to the printer 2000, the serial number switching unit 1600 detects the authentication state of the target consumable serial number based on the authentication result of the currently used target consumable serial number fed back by the printer, and updates the authentication state of the target consumable serial number stored in the storage unit 1400 based on the authentication state. When the consumable cartridge is electrically connected to the printer 2000 again next time, the authentication status of the target consumable serial number stored in the storage unit 1400 can provide a basis for the serial number switching unit 1600 to determine whether to switch the consumable serial number. In other embodiments, the re-electrical connection of the consumable cartridge to the printer 2000 may also be accomplished by way of a printer switch cover, or the like.

The storage unit 1400 also stores power-up states of the printer 2000, including a true power-up state and a false power-up state.

Strictly speaking, because the signal output by the printer 2000 must be a continuous piece of data signal. In the process of switching consumable serial number authentication data by plugging and unplugging the consumable cartridge, the printer 2000 may not send command data after powering up, or send a single or few data signals, i.e. glitch signals. The above-described case where only the glitch signal is transmitted or command data is not transmitted is a case where the printer 2000 is powered on falsely. The continuous data signal sent by the printer 2000 is a real printer command signal, which is the case when the printer 2000 is powered up.

The power-on state of the printer 2000 is detected by the power-on detection unit 1200, and when the consumable chip 1000 is connected to the printer 2000, the power-on detection unit 1200 detects the power-on state of the printer 2000 based on a signal output from the printer, and updates the power-on state of the printer stored in the storage unit 1400 based on the power-on state. When the consumable cartridge is connected to the printer 2000 next time, the power-on state stored in the storage unit 1400 can provide a basis for the serial number switching unit 1600 to determine whether to switch the serial number of the consumable.

Here, the electric connection of consumable chip and printer means through plug consumable box, will have the consumable box of consumable chip to install the installation position to the printer again, including the printer really power up and the false two kinds of circumstances of power up.

The working principle of the power-on detection unit according to the embodiment of the present application is described below with reference to fig. 2.

As shown in fig. 2, the power-on detection unit 1200 includes: trigger 1220, counter 1240, comparator 1260, and detection module 1280. The trigger 1220 detects a falling edge or a rising edge of a signal output from the printer 2000; the counter 1240 counts the number of falling edges or rising edges of the signal output from the printer 2000; the comparator 1260 determines, based on the count result output by the counter, whether the printer 2000 does not output a signal, or whether the signal output by the printer 2000 is a command signal or a glitch signal transmitted by the printer 2000, and transmits a first indication signal for indicating that the signal output by the printer 2000 is the command signal transmitted by the printer 2000, or transmits a second indication signal for indicating that the signal output by the printer 2000 is the glitch signal, or transmits a third indication signal for indicating that the printer does not output a signal, to the detection module 1280 correspondingly; the detection module 1280 correspondingly updates the power-on state of the printer stored in the storage unit 1400 based on the first indication signal, the second indication signal, or the third indication signal.

In one embodiment, specifically, the flip-flop 1220 detects a falling edge of the signal data_in after receiving the signal data_in output from the printer 2000. The counter 1240 counts the falling edge of the signal data_in output from the printer 2000, and the counter 1240 counts up by 1 each time the trigger 1220 detects the falling edge of the signal data_in. The count result of the counter 1240 is output to the comparator 1260, and the comparator 1260 compares the count result with the set value m and outputs a corresponding result. When the counter 1240 counts to m, it indicates that the signal output by the present printer 2000 is a command signal transmitted by the printer. When the counter 1240 counts m and the signal data_in is not received later, it indicates that the signal output by the present printer 2000 is a glitch signal, and the glitch signal does not continuously generate m signal falling edges.

The comparator 1260 is configured to determine whether the printer 2000 does not output a signal or whether a signal output by the printer 2000 is a command signal or a glitch signal transmitted by the printer 2000, based on the count result of the counter 1240. The comparator 1260, upon determining to be a command signal sent by the printer 2000, sends an indication signal to the detection module 1280 to prompt the detection module 1280 to be the command signal sent by the printer 2000 this time. Comparator 1260, upon determining a glitch signal, sends an indication signal to detection module 1280 to prompt detection module 1280 to be the glitch signal this time.

In other embodiments, the trigger 1220 may also detect rising edges of the signal output by the printer 2000, and accordingly, the counter 1240 counts the number of rising edges and outputs to the comparator 1260 for the comparator 1260 to compare whether the signal output by the printer 2000 is a command signal sent by the printer 2000 or a glitch signal.

In other embodiments, it may also be determined whether the signal is a glitch signal based on the high duration. For example, the comparator 1260 compares the high-level duration with the set value x and outputs a corresponding result. When the counter 1240 counts to x, it indicates that the signal output by the present printer 2000 is a command signal sent by the printer. When the counter 1240 counts x and the signal data_in is not received later, it indicates that the signal output by the present printer 2000 is a glitch signal, and the glitch signal does not continuously generate a high-level duration with a preset duration of x.

The trigger, the counter and the comparator form a filtering module for judging whether the signal is a burr signal or not. Or in other embodiments, the filtering module may also include other detection devices for determining whether the signal is glitch by detecting the high duration of the signal output by the printer 2000. Or in other embodiments filters may be utilized to achieve similar functionality.

The detection module 1280 determines whether the current power-on is the actual power-on or the false power-on according to the received indication signal, and correspondingly updates the power-on state of the printer stored in the storage unit 1400, that is, the last time the consumable chip is connected with the printer 2000 by inserting the consumable cartridge, the detected power-on state of the printer.

The detection module 1280 updates the power-on state of the printer stored in the storage unit 1400 according to the detected power-on state of the printer. Specifically, after the connection between the consumable chip 1000 and the printer 2000 is disconnected by the unplugging operation of the plug-in consumable cartridge or the active operation of the printer, the consumable chip 100 is powered off, and all signals are reset to an initial state. In other words, all signals at the consumable chip side are pulled down to 0v. In the initial state, the consumable chip 1000 is powered up again, and the detection module 1280 may read out the power-up state of the printer stored in the storage unit 1400 from the corresponding address of the storage unit 1400.

For example, the power-on state of the corresponding printer is represented by the value of the power-on flag wake_flag stored in the storage unit 1400. For example, when the power-up flag fake_flag=0 read out from the memory unit 1400 by the detection module 1280, it indicates that the last power-up state is a false power-up state; when the detection module 1280 reads the power-up flag wake_flag=1 from the memory unit 1400, it indicates that the last power-up state is a true power-up state. Therefore, after the printer is powered on each time, the detection module 1280 only needs to read the value of the power-on flag fake_flag in the storage unit 1400, so as to obtain the last power-on condition, and then combine the power-on state corresponding to the signal output by the printer 2000 to be the true power-on state or the false power-on state, so as to provide a judgment basis for switching the consumable serial number of the serial number switching unit 160.

Specifically, the detection module is specifically configured to: and if the power-on state of the printer is read from the target storage address sector of the storage unit to be the false power-on state, writing the true power-on state into the target storage address sector when the signal sent by the comparator is received to be the first indication signal. If the power-on state of the printer is read from the target storage address sector of the storage unit to be the true power-on state, writing the false power-on state into the target storage address sector; and then when the signal sent by the comparator is received as a first indication signal, the true power-on state is written into the target storage address sector.

The detection module 1280 updates the power-on state of the printer stored in the storage unit 1400 according to the detected power-on state of the printer, and the updated power-on state of the printer is divided into two cases:

Case 1: the read power-up flag fake_flag=0 indicates that the last power-up is a false power-up, and if the signal transmitted by the filtering module 1260 is detected as the first indication signal, the sector of the memory address where the power-up flag fake_flag is located is erased (the erasing is that 0 in the corresponding memory address is rewritten to 1), which indicates that the power-up is a true power-up.

Case 2: the read power-up flag fake_flag=1 indicates that the last power-up is a true power-up, firstly, writing 0 into the memory address where the power-up flag fake_flag is located, and then waiting, if the signal transmitted by the filtering module 1260 is detected as the first indication signal, erasing the memory address sector where the power-up flag fake_flag is located (erasing to rewrite 0 in the corresponding memory address to be 1), which indicates that the power-up is a true power-up.

The detection module 1280 is further configured to: and if the signal sent by the comparator is received as the second indication signal or the third indication signal, the false power-on state of the target storage address sector is maintained.

That is, corresponding to the above case 1: if the detection module 1280 reads the power-up flag fake_flag=0 and detects that the signal transmitted from the filtering module 1260 is the second indication signal or the third indication signal, the power-up flag fake_flag=0 is always maintained, which indicates that the power-up is a false power-up.

Corresponding to case 2 above: the detection module 1280 writes 0 into the memory address where the power-up flag fake_flag is located and waits, and if it is detected that the signal transmitted from the filtering module 1260 is the second indication signal or the third indication signal, the power-up flag fake_flag=0 is always maintained, which indicates that the power-up is a false power-up.

As described above, the serial number switching unit 1600 may update the authentication state of the target consumable serial number stored in the storage unit 1200 based on the authentication result of the target consumable serial number fed back by the printer 2000.

The serial number switching unit 1600 is specifically configured to: if the authentication result of the target consumable serial number fed back by the printer is that the authentication is successful, updating the authentication state of the target consumable serial number stored in the storage unit to pass the authentication of the printer; if the authentication result of the target consumable serial number fed back by the printer is authentication failure, updating the authentication state of the target consumable serial number stored in the storage unit to be the authentication which does not pass the printer. If the authentication command of the printer is not received, or the consumable chip does not reply to the command although the authentication command of the printer is received, the authentication state of the target consumable serial number stored in the storage unit is kept as not authenticated by the printer.

The printer 2000 is further connected to the storage unit 1400, and can read or search the authentication data of the target consumable serial number currently used by the consumable cartridge from the storage unit 1400 under the condition that the power is actually applied, so as to perform the authentication of the printer on the target consumable serial number.

In one embodiment, the consumable chip 1000 further includes a static random access memory (not shown in the figure), and the serial number switching unit is further configured to: after the printer 2000 is powered up, the target consumable serial number authentication data is moved from the storage unit 1400 to the sram.

A Static Random-Access Memory (SRAM) has a higher data transmission rate, so that the problem of slow transmission rate between the storage unit 1400 and the printer 2000 can be solved by using the SRAM to perform data interaction with the printer.

In other embodiments, the SRAM may be replaced with other volatile memories, such as ferroelectric memories (FRAM, ferroelectric RAM).

If the serial number of the target consumable passes the authentication, the printer 2000 sends a write signal to the serial number switching unit 1600, which indicates that the consumable cartridge and the printer successfully handshake, and the authentication of the serial number of the target consumable is successful, that is, the printer 2000 feeds back that the authentication result of the serial number of the target consumable is authentication success. If the target consumable serial number does not pass the authentication, the consumable chip is powered down when the consumable chip does not pass the printer authentication, and the consumable chip indicates that the consumable box and the printer do not successfully handshake, and the authentication of the target consumable serial number is unsuccessful, namely the printer 2000 feeds back the authentication result of the target consumable serial number as authentication failure. The authentication result of the printer 2000 feeding back the serial number of the target consumable part may be specifically represented by a prompt that the corresponding consumable part box passes the authentication on the display screen of the printer 2000.

The serial number switching unit 1600 switches the consumable serial number authenticated with the printer based on at least one of the power-on state stored in the storage unit 1400, the next power-on state of the printer detected by the power-on detection unit 1200, and the authentication state of the target consumable serial number, when the printer 2000 is powered on next time.

The next power-up referred to in this embodiment is based on the power-up state stored in the current power-up detection unit 1200 updating the storage unit 1400 and the authentication state stored in the storage unit 1400 based on the current serial number switching unit 1600. That is, the serial number switching unit 1600 determines whether to switch the consumable serial number at the next power-up of the printer 2000, and needs to make a determination in combination with at least one of the power-up state, the authentication state, and the power-up state detected in real time by the power-up detecting unit 1200 at the next power-up, stored in the storage unit 1400 at the previous power-up.

Specifically, in one embodiment, the serial number switching unit 1600 is specifically configured to: if the authentication state of the target consumable serial number stored in the storage unit is read to be that the printer authentication is not performed, under the condition that the next power-on state of the printer is detected to be a true power-on state by the power-on detection unit, the consumable chip sends the currently selected serial number to the printer side for identification, and whether the authentication result of the target consumable serial number is authentication success or authentication failure is judged; if the authentication is successful, directly entering a working state, and updating the authentication state of the target consumable serial number stored in the storage unit into the authentication passing the printer; if the authentication fails, the authentication state of the target consumable serial number stored in the storage unit is updated to be the authentication which fails the printer. And if the authentication is successful, the target consumable serial number passes the authentication of the printer, and if the authentication is failed, the target consumable serial number fails the authentication of the printer.

In the embodiment of the present application, the status indication signal Snmode may indicate various different authentication states corresponding to the serial number of the consumable, for example, the value of the status indication signal Snmode is set to 3' b111, which indicates that the serial number of the consumable has not been authenticated by the printer; setting the value of the status indication signal Snmode to 3' b000, which indicates that the serial number of the consumable is authenticated by the printer once and passes the authentication of the printer; the value of the status indication signal Snmode is set to 3' b110, indicating that the serial number of the consumable is authenticated by the printer once but not by the printer.

The above embodiment is directed to a brand new target consumable serial number that is not detected by printer authentication, and if the serial number switching unit 1600 reads the status indication signal Snmode =3' b111 stored in the storage unit 1400, it can be known that the authentication status of the target consumable serial number is not authenticated by the printer.

In this case, if the power-on detection unit 1200 detects that the power-on state of the printer 2000 is the true power-on state, it is possible to further determine whether the authentication result of the target consumable serial number is authentication success or authentication failure. I.e., whether the new target consumable serial number is authenticated by the printer 2000.

If the authentication is passed, i.e., the authentication is successful, the serial number switching unit 1600 directly enters the operation state, and updates the authentication state of the target consumable serial number stored in the storage unit 1400 to the authentication by the printer, i.e., modifies the state indication signal in the storage unit 1400 to Snmode =3' b000. Further, the value of the status indication signal Snmode may be locked, so that after the next power-up, the consumable chip 1000 may directly enter the working state based on the target consumable serial number.

If the authentication is not passed, i.e., the authentication fails, the serial number switching unit 1600 updates the authentication state of the target consumable serial number stored in the storage unit 1400 to the authentication of the non-passing printer, i.e., modifies the state indication signal in the storage unit 1400 to Snmode =3' b110. Further, the value of the status indication signal Snmode may be locked, and the serial number switching unit 1600 may switch to another consumable serial number based on the target consumable serial number after the next power-up.

Specifically, in one embodiment, the serial number switching unit 1600 is specifically configured to: if the authentication state of the target consumable serial number stored in the storage unit is read to pass the authentication of the printer, the printer directly enters a working state when the next power-on state of the printer is detected to be a true power-on state by the power-on detection unit.

The above-described embodiment is directed to the target consumable serial number that has been detected by one printer authentication and passed through authentication, the serial number switching unit 1600 can know that the authentication state of the target consumable serial number is passed through printer authentication if the state indication signal Snmode =3' b000 stored in the storage unit 1400 is read.

In this case, if the power-on detection unit 1200 detects that the power-on state of the printer 2000 is the true power-on state, the operation state may be directly entered.

Specifically, in one embodiment, the serial number switching unit 1600 is specifically configured to: if the power-on state stored in the storage unit is a false power-on state and the authentication state of the target consumable serial number is the authentication of the printer, when the power-on detection unit detects that the next power-on state of the printer is a true power-on state, switching to a first consumable serial number for authentication with the printer, wherein the first consumable serial number is one consumable serial number which is not authenticated by the printer in the consumable serial numbers.

The above-described embodiment is directed to the target consumable serial number that has been detected by one printer authentication and that has not passed the authentication, if the serial number switching unit 1600 reads the status indication signal Snmode =3' b110 stored in the storage unit 1400, it can be known that the authentication status of the target consumable serial number is that the printer authentication has not passed.

In this case, when the power-on detection unit 1200 detects that the power-on state of the printer 2000 is the true power-on state, the process may be further switched to another consumable serial number stored in the storage unit 1400 and not yet authenticated by the printer, and the process may be performed with the printer.

The serial number switching unit 1600 may randomly select serial numbers of other consumable materials that have not been authenticated by the printer in one storage unit 1400, or may sequentially switch according to the storage addresses of the serial numbers of the consumable materials.

Optionally, the plurality of consumable serial number authentication data are stored in the storage unit in the form of a code table and a code table pointer, one consumable serial number authentication data is stored in one code table, and the storage unit may store a plurality of different code tables. The serial number switching unit switches to a first consumable serial number and authenticates with the printer, and includes: adding 1 to a code table pointer to point to a next code table of a code table corresponding to the target consumable serial number, wherein the next code table stores the first consumable serial number authentication data; writing the code table pointer added with 1 into the storage unit; and when the printer is powered on next time, based on the authentication data of the first consumable serial number in the code table pointed by the code table pointer stored in the storage unit, authenticating the first consumable serial number and the printer. In this embodiment, the switching of the sequence numbers is achieved by switching the code table data. That is, at least data/information related to the authentication of the printer 2000 including a serial number and the like needs to be switched.

In this embodiment, if the target consumable serial number passes the printer authentication once but fails the authentication, the serial number switching unit 1600 switches to the consumable serial number stored in the next code table based on the code table storing the target consumable serial number.

Next, a flow of consumable serial number switching will be described with reference to the signal timing diagram of fig. 3.

In fig. 3, rst represents a reset signal, and the upper electric meter represents that the reset signal rst is pulled high and the lower electric meter represents that the reset signal rst is pulled low. After power-up, boot is started, and the Boot represents reading data stored in the storage unit 1400, for example, data in Flash, and mainly includes consumable serial number authentication data, an authentication state corresponding to the consumable serial number, and a power-up state of the printer. Boot_done indicates Boot end, snmode indicates a status indication signal, snsel indicates a code table pointer signal, move_start signal indicates start of data transfer, a is an address of Flash, dout is output data of Flash, ADDR is an address of SRAM, DIN is input data of SRAM, erase_pulse is an enable signal of Erase memory unit 1400, and write_pulse is an enable signal of write memory unit 1400.

In the initial state, the area with the address 1300 in Flash stores an initial value snmode =3 'b111 of Snmode, the area with the address 1301 in Flash stores an initial value snsel =4' b0000 of snsel, after power-on, reset is changed from low level to high level, and Snmode and snsel are started to be output from Boot in Flash, at this time snmode =3 'b111, and nsel=4' b0000.

After Boot is finished, the boot_done signal is pulled up from a low level to a high level, the value of Snmode is judged, at the moment Snmode =3 'b111, data transfer is directly started, the move_start signal is pulled up from a low level to a high level, at the moment snsel =4' b0000, if a data set of consumable serial number authentication data contains 256 data, 256 data with addresses of 0-255 in Flash are transferred, and the 256 data are transferred to an SRAM for storage.

After the transfer is finished, the printer 2000 sends an authentication command, and the authentication is unsuccessful at this time, and the consumable chip 1000 feeds back an authentication failure signal indicating that the consumable serial number authentication data stored in Flash and having addresses 0 to 255 does not pass the authentication of the printer 2000. The authentication failure signal changes from low level to high level, starts to erase data in the address area 1300, 1301, writes Snmode =3 'b110 into the Flash address 1300 after the erasing is completed, and writes snsel =4' b0000 into the Flash address 1300.

After authentication fails, the consumable cartridge is plugged, the consumable chip 1000 is powered down first and then powered up again, at this time, reset is changed from low level to high level, power-up detection is performed through the power-up detection unit, snmode and snsel are started to be read out from Flash, at this time Snmode =3 'b110, and snel=4' b0000. After the reading is finished, the boot_done signal is changed from low level to high level, and it is judged that Snmode =3 ' b110 is the moment, and if the last time is false power-on, the data of the 1301 address area is started to be erased, snmode =3 ' b111 is written into the 1300 Flash address, and snsel =4 ' b0001 is written into the 1300 Flash address.

Then, the data transfer is started, and the move_start signal is changed from low level to high level, at this time snsel =4' b0001, so that 256 data with addresses 256-511 in Flash are transferred and stored in SRAM.

After the transfer is finished, the printer 2000 sends an authentication command, and the consumable chip 1000 feeds back an authentication success signal indicating that the consumable serial number authentication data stored in the Flash addresses 256-511 can pass the authentication of the printer 2000. Then, data in the address area 1300, 1301 of the Flash address is erased, snmode =3 'b000 is written into the Flash address 1300, and snsel =4' b0001 is written into the Flash address 1300. In this way, when the subsequent power-up of the printer 2000 is the actual power-up, the Boot is ended, snmode =3 ' b000 is detected, the consumable chip can directly communicate with the printer 2000, snsel can always hold snsel =4 ' b0001, and therefore each moving is the data in the Flash address corresponding storage area pointed by snsel =4 ' b0001.

In one embodiment, the serial number switching unit 1600 is specifically configured to: if the power-up detection unit 1200 detects that the next power-up state of the printer 2000 is a false power-up state, a waiting state is maintained until the printer 2000 is powered down.

Under the condition that the consumable box is inserted into the printer 2000 to power up, the power-up detection unit 1200 can detect whether the current power-up state of the printer 2000 is a true power-up state, if the current power-up state is not the true power-up state, for example, a burr signal is detected, the serial number switching unit 1600 cannot execute subsequent operation, the printer 2000 is powered down actively, that is, the printer 2000 enables the consumable box chip to power down, after the consumable box is manually inserted into the printer 2000 again, the power-up and subsequent procedures of the printer are repeated until the power-up detection unit 1200 detects that the current power-up state of the printer 2000 is the true power-up state.

In the embodiment of the present application, the consumable cartridge is installed at the installation position of the printer 2000 each time, that is, when the first reset is pulled up after the consumable cartridge is inserted into the printer 2000, the first power-up state is a power-up state, and the first power-up state after the consumable cartridge is inserted into the printer 2000 is preset as a power-up state. At this time, the printer 2000 does not transmit any data to the consumable chip 1000, and the consumable chip may detect that the current power-on state is false. Then, in a case where the consumable cartridge remains in the connected state, the printer 2000 causes the consumable chip 1000 to be powered down, and the power-on flag wake_flag=0 in the storage unit 1400. After the printer 2000 has powered up the consumable chip 1000 again, the printer 2000 will normally send command data to the consumable chip. At this time, if the serial number of the target consumable passes the authentication, the printer 2000 sends a subsequent work command, and if the serial number does not pass the authentication, the printer 2000 is powered down, so that the consumable cartridge chip is powered down. In the power-down stage where the target consumable serial number does not pass the certification, the consumable cartridge needs to be disconnected from the mounting site of the printer 2000. Repeating the steps until the consumable serial number is switched to other consumable serial numbers which can pass the authentication.

In the embodiment of the application, the consumable chip comprises a power-on detection unit, a storage unit and a serial number switching unit; the storage unit is respectively connected with the power-on detection unit and the serial number switching unit and is at least used for storing a plurality of consumable serial number authentication data, authentication states corresponding to consumable serial numbers and power-on states of printers connected with the consumable chips, wherein the authentication states comprise a state that the printer is not authenticated, a state that the printer is authenticated and a state that the printer is not authenticated, and the power-on states comprise a true power-on state and a false power-on state; the power-on detection unit is used for detecting the power-on state of the printer based on a signal output by the printer when the consumable chip is electrically connected with the printer, and updating the power-on state of the printer stored in the storage unit based on the power-on state; the serial number switching unit is used for updating the authentication state of the target consumable serial number stored in the storage unit based on the authentication result of the target consumable serial number fed back by the printer, and switching consumable serial numbers authenticated with the printer based on at least one of the power-on state stored in the storage unit, the next power-on state of the printer and the authentication state of the target consumable serial number detected by the power-on detection unit when the printer is powered on next time, so that the power-on state of the printer is detected by the power-on detection unit to identify burrs and false power-on conditions generated when a consumable box is pulled out and plugged in, the consumable serial number switching operation of the next step is executed according to the identification result, unstable factors affecting consumable serial number switching are avoided, and stable and accurate switching of the consumable serial numbers is ensured until consumable serial number authentication is passed.

Optionally, as shown in fig. 4, an embodiment of the present application further provides a method for operating a consumable chip, where the method includes the following steps 102 to 108.

And 102, detecting the power-on state of the printer based on the signal output by the printer when the consumable chip is electrically connected with the printer.

Optionally, when the consumable chip is electrically connected with the printer, detecting the power-on state of the printer based on the signal output by the printer includes: detecting a falling edge or a rising edge of a signal output by the printer; counting the number of falling edges or rising edges of a signal output by the printer; based on the counting result output by the counter, determining whether the printer does not output a signal or whether the signal output by the printer is a command signal or a glitch signal sent by the printer; based on the determination result, the power-on state of the printer stored in the storage unit is correspondingly updated.

The consumable chip is the consumable chip 1000 of the embodiment of fig. 1 to 3, the printer is the printer 2000 of the embodiment of fig. 1 to 3, and the step 102 may be performed by the power-on detection unit 1200 of the embodiment of fig. 1 to 3, so that repetition is avoided and redundant description is omitted.

Step 104, updating the power-on state of the printer stored in the storage unit of the consumable chip based on the power-on state, wherein the storage unit is used for storing a plurality of consumable serial number authentication data, authentication states corresponding to consumable serial numbers and the power-on state of the printer, and the authentication states comprise a state of not passing through the printer, a state of passing through the printer and a state of not passing through the printer, and the power-on states comprise a true power-on state and a false power-on state.

In one embodiment, the updating the power-on state of the printer stored in the storage unit of the consumable chip based on the power-on state includes: and if the power-on state of the printer is read from the target storage address sector of the storage unit to be the false power-on state, writing the true power-on state into the target storage address sector when the signal output by the printer is determined to be a command signal sent by the printer.

In another embodiment, the updating the power-on state of the printer stored in the storage unit of the consumable chip based on the power-on state includes: if the power-on state of the printer is read from the target storage address sector of the storage unit to be the true power-on state, writing the false power-on state into the target storage address sector; and then when the signal output by the printer is determined to be a command signal sent by the printer, the true power-on state is written into the target storage address sector.

Further, the updating the power-on state of the printer stored in the storage unit of the consumable chip based on the power-on state further includes: if it is determined that the printer does not output a signal or the output signal is the glitch signal, a pseudo-power-on state of the target memory address sector is maintained.

The memory unit is the memory unit 1400 of the embodiment of fig. 1 to 3, and the step 104 may be performed by the power-up detection unit 1200 of the embodiment of fig. 1 to 3, so that repetition is avoided and detailed description is omitted.

And step 106, updating the authentication state of the target consumable serial number stored in the storage unit based on the authentication result of the target consumable serial number fed back by the printer.

In one embodiment, the updating the authentication status of the target consumable serial number stored in the storage unit based on the authentication result of the target consumable serial number fed back by the printer includes: if the authentication result of the target consumable serial number fed back by the printer is that the authentication is successful, updating the authentication state of the target consumable serial number stored in the storage unit to be the authentication state passing the printer; if the authentication result of the target consumable serial number fed back by the printer is authentication failure, updating the authentication state of the target consumable serial number stored in the storage unit to be the authentication state which does not pass through the printer.

Step 106 may be performed by the serial number switching unit 1600 in the embodiment of fig. 1 to 3, and will not be repeated here.

And step 108, when the printer is powered on next time, switching consumable serial number authentication data authenticated with the printer based on at least one of the power-on state stored in the storage unit, the next power-on state of the printer detected by the power-on detection unit and the authentication state of the target consumable serial number.

In one embodiment, the switching of consumable serial number authentication data for authenticating with the printer based on at least one of a power-on state stored in the storage unit, a next power-on state of the printer detected by the power-on detection unit, and an authentication state of the target consumable serial number includes: if the authentication state of the target consumable serial number stored in the storage unit is read to be the printer authentication state which is not already passed, judging whether the target consumable serial number passes authentication or not, namely whether authentication is successful or not under the condition that the next power-on state of the printer is detected to be the true power-on state by the power-on detection unit; if the authentication is successful, directly entering a working state, and updating the authentication state of the target consumable serial number stored in the storage unit into an authentication state passing through the printer; if the authentication fails, the authentication state of the target consumable serial number stored in the storage unit is updated to be the authentication state which does not pass through the printer.

In another embodiment, the switching of consumable serial number authentication data for authenticating with the printer based on at least one of a power-on state stored in the storage unit, a next power-on state of the printer detected by the power-on detection unit, and an authentication state of the target consumable serial number includes: if the authentication state of the target consumable serial number stored in the storage unit is read to pass the authentication state of the printer, the printer directly enters a working state when the next power-on state of the printer is detected to be a true power-on state by the power-on detection unit.

In yet another embodiment, the switching of consumable serial number authentication data for authenticating with the printer based on at least one of a power-on state stored in the storage unit, a next power-on state of the printer detected by the power-on detection unit, and an authentication state of the target consumable serial number includes: if the power-on state stored in the storage unit is a false power-on state and the authentication state of the target consumable serial number is an authentication state of the printer, when the power-on detection unit detects that the next power-on state of the printer is a true power-on state, switching to first consumable serial number authentication data to authenticate with the printer, wherein the first consumable serial number is one consumable serial number which is not authenticated by the printer in the consumable serial numbers.

Optionally, the plurality of consumable serial number authentication data are stored in the storage unit in a form of a code table and a code table pointer, one consumable serial number authentication data is stored in one code table, and the switching to the first consumable serial number to authenticate with the printer includes: adding 1 to a code table pointer to point to a next code table of a code table corresponding to the target consumable serial number, wherein the next code table stores the first consumable serial number authentication data; writing the code table pointer added with 1 into the storage unit; and when the next power-on state of the printer is the actual power-on state, based on the first consumable serial number authentication data in the code table pointed by the code table pointer stored in the storage unit, authenticating the first consumable serial number authentication data and the printer.

In still another embodiment, the switching of the authentication data number of the consumable sequence authenticated with the printer based on at least one of the power-on state stored in the storage unit, the next power-on state of the printer detected by the power-on detection unit, and the authentication state of the target consumable serial number includes: and if the power-on detection unit detects that the next power-on state of the printer is a false power-on state, maintaining a waiting state until the printer is powered down.

Step 108 may be performed by the sequence number switching unit 1600 in the embodiment of fig. 1 to 3, and will not be repeated here.

In one embodiment, if it is determined at step 106 that the target consumable serial number is authenticated, then there is no need to switch serial numbers when the subsequent printer is powered up again. Or for the case where the printer 2000 has not authenticated the target consumable serial number and is forced to power down, the serial number does not need to be switched when the subsequent printer is powered up again.

The working method of the consumable chip provided by the embodiment of the application further comprises the following steps: and after the printer is powered on, moving the target consumable serial number authentication data from the storage unit to a static random access memory of the consumable chip.

In order to describe the working method of the consumable chip provided in the embodiment of the present invention in detail, a specific embodiment of fig. 5 will be described below. It will be appreciated that some of the steps in this embodiment are the same as or similar to those described for the steps of the method embodiment described above, and that the description thereof is omitted as appropriate to avoid repetition.

As shown in fig. 5, the working method of the consumable chip of this embodiment includes the following steps:

Step 202, after a consumable chip is powered on, starting Boot, and reading data stored in a storage unit;

step 204, judging whether the Boot is ended, if yes, entering step 206, otherwise returning to step 202;

step 206, moving the data stored in the storage unit to the SARM;

step 208, judging whether the moving is finished, if yes, proceeding to step 210, otherwise returning to step 206;

Step 210, a power-on state judgment is executed, and step 212 is performed when the power-on state judgment is false, and step 214 is performed when the power-on state judgment is true; in one type of printer, in step 202, if the printer is powered on for the first time after the consumable cartridge is mounted to the mounting location of the printer, and the printer will not send command data at this time, the powered-on state of step 210 is determined to be a false powered-on; if the consumable box is kept mounted on the mounting position of the printer, the printer enables the consumable chip to be powered down and then powered up again, at the moment, the printer normally sends command data, and the power-up state of the step 210 is judged to be true power-up;

step 212, waiting until the printer powers down the consumable chip;

Step 214, performing authentication status determination, wherein the step 216 is performed when authentication is determined to be passed, the step 218 is performed when authentication is determined to be not passed, and the step 220 is performed when authentication is determined to be not passed;

Step 216, entering a working state;

Step 218, switching other consumable serial numbers;

Step 220, judging whether a write signal sent by a printer is received, if yes, entering step 222, otherwise, entering step 224;

Step 222, entering a working state and updating the authentication state to pass authentication;

In step 224, the authentication status is updated as not authenticated.

In one type of printer 2000, each time the consumable cartridge is mounted to the mounting location of the printer 2000, the printer 2000 will not send command data when the first reset of the printer 2000 is pulled high, and the power-up is a pseudo-power-up state. When the consumable chip detects the false power-on state, the consumable chip does not authenticate the serial number of the consumable with the printer 2000.

The overall switching process of consumable serial numbers according to the embodiment of the present application will be described below with reference to fig. 6 to 9.

As shown in fig. 6, after the consumable cartridge is first mounted to the mounting position of the printer 2000, the consumable chip of the consumable cartridge is electrically connected to the printer, the printer starts to power up the consumable chip, and the consumable chip performs the following steps:

Step 304, after the consumable chip is powered on, boot is started, and data stored in the storage unit are read;

Step 306, judging whether the Boot is ended, if yes, entering step 308, otherwise, returning to step 304;

Step 308, moving the data stored in the storage unit to the SARM;

step 310, judging whether the moving is finished, if yes, proceeding to step 312, otherwise returning to step 308;

Step 312, performing authentication status determination, and if it is determined that the serial number of the consumable part has not been authenticated by the printer by the status indication signal Snmode =3' b111 stored in the storage unit, proceeding to step 314;

step 314, the consumable chip is in a waiting state;

Step 316, judging whether the printer authentication instruction arrives in a preset period, if yes, entering step 317, otherwise entering step 324;

Step 317, judging whether the target consumable authentication data passes the authentication, if so, proceeding to step 318, otherwise proceeding to step 322;

Step 318, the serial number of the consumable is successfully authenticated by the printer, and the printer sends out a write signal;

Step 320, the printer enters a working state;

Step 322, the serial number of the consumable part fails to be authenticated by the printer, and the consumable part chip rewrites the status indication signal Snmode =3' b110 in the storage unit;

in step 324, the printer powers down the consumable chip.

Continuing the step 324, after the consumable chip is powered down, the consumable box is moved out from the installation position of the printer, and then the consumable box is reinstalled to the installation position of the printer, the consumable chip of the consumable box is electrically connected with the printer, the printer powers on the consumable chip, as shown in fig. 7, the consumable chip performs the following steps:

step 404, after the consumable chip is powered on, starting Boot, and reading data stored in the storage unit;

step 406, judging whether the Boot is ended, if yes, entering step 408, otherwise, returning to step 304;

Step 408, moving the data stored in the storage unit to the SARM;

step 410, judging whether the moving is finished, if yes, proceeding to step 412, otherwise returning to step 408;

Step 412, performing authentication status determination, and if the consumable serial number is determined to not pass the printer authentication by the status indication signal Snmode =3' b110 stored in the storage unit, then step 414 is entered;

Step 414, the consumable chip is in a waiting state;

Step 416, if a command signal sent by the printer is received, and the power-on flag wake_flag=0 and the status indication signal Snmode =3' b110 stored in the storage unit, then step 418 is entered;

Step 418, snsel +1 is rewritten and Snmode =3' b111 is rewritten, namely, the data is switched to the code table data containing the brand new serial number of the other consumable part which is not authenticated by the printer;

Step 420, reading the corresponding consumable serial number authentication data from the snsel +1 corresponding code table to execute consumable serial number switching;

at step 422, the printer causes the consumable chip to power down.

Continuing the step 422, in the case that the consumable cartridge is kept installed at the installation position of the printer, the printer powers down the consumable chip, and powers up the consumable chip after a certain time, as shown in fig. 8, the consumable chip performs the following steps:

step 504, after the consumable chip is powered on, boot is started, and data stored in the storage unit are read;

step 506, judging whether the Boot is ended, if yes, entering step 308, otherwise, returning to step 304;

step 508, moving the data stored in the storage unit to the SARM;

step 510, judging whether the moving is finished, if yes, proceeding to step 512, otherwise returning to step 508;

Step 512, performing authentication status determination, and if it is determined that the serial number of the consumable part has not been authenticated by the printer by the status indication signal Snmode =3' b111 stored in the storage unit, proceeding to step 514;

step 514, the consumable chip is in a waiting state;

step 516, judging whether the printer authentication command arrives in a preset period, if so, entering step 517, otherwise, entering step 524;

step 517, judging whether the target consumable serial number authentication data passes the authentication, if yes, entering step 518, otherwise, entering step 522;

Step 518, the serial number of the consumable is successfully authenticated by the printer, and the printer sends out a write signal;

step 520, the printer enters an operating state;

step 522, the serial number of the consumable part fails to be authenticated by the printer, and the consumable part chip rewrites the status indication signal Snmode =3' b110 in the storage unit;

At step 524, the printer powers down the consumable chip.

Powering down step 324 of fig. 6 is the printer actively powering down the consumable cartridge chip with the consumable cartridge remaining installed in the printer's installed location; the starting power-up in fig. 7 is realized by correspondingly plugging the consumable box; the powering down of step 422 in fig. 7 and the subsequent starting of powering up in fig. 8 is that the printer actively causes the consumable cartridge chip to power down and then power up with the consumable cartridge remaining installed in the printer's installed position.

Fig. 9 is a schematic diagram of power-up and power-down of the authentication process corresponding to fig. 7 to 8, in which the printer actively powers up and down the consumable chip three times, including a first power-up 1, a second power-up 2, and a third power-up 3, for example, corresponding to a high level of Vdd, and correspondingly, a low level of Vdd. The first power-on 1 is a false power-on, the printer sends identity authentication during the second power-on 2 to finish handshake operation with the consumable chip, and the authentication of the consumable serial number is started if handshake is successful. And the printer sends an authentication command during the third power-up period 3 to authenticate the serial number of the consumable.

In fig. 9, three times of powering up are all performed by the printer to operate the consumable chip; if the authentication fails, the consumable chip is powered on again by manually plugging the consumable box, and then the process of powering on and powering off the consumable chip by the 3 times printer shown in fig. 9 is repeated. The switching of the consumable serial number may be performed during the second power-up 2, the authentication of the consumable serial number is performed during the third power-up 3, and the above-described consumable serial number switching and authentication operations are not performed during the first power-up 3.

In the embodiment of the application, when a consumable chip is electrically connected with a printer, the power-on state of the printer is detected based on a signal output by the printer; updating the power-on state of the printer stored in a storage unit of the consumable chip based on the power-on state, wherein the storage unit is used for storing a plurality of consumable serial number authentication data, authentication states corresponding to consumable serial numbers and the power-on state of the printer, the authentication states comprise a state that the printer is not authenticated, a state that the printer is authenticated and a state that the printer is not authenticated, and the power-on state comprises a true power-on state and a false power-on state; updating the authentication state of the target consumable serial number stored in the storage unit based on the authentication result of the target consumable serial number fed back by the printer; when the printer is powered on next time, based on at least one of the power-on state stored in the storage unit, the next power-on state of the printer detected by the power-on detection unit and the authentication state of the target consumable serial number, the consumable serial number authenticated by the printer is switched, so that the power-on state of the printer is detected by the power-on detection unit to identify burrs generated when the consumable box is plugged or false power-on conditions corresponding to the non-output signal of the printer, the consumable serial number switching operation of the next step is executed according to the identification result, unstable factors influencing consumable serial number switching are avoided, stable and accurate switching of the consumable serial number is ensured, and the consumable serial number authentication is passed.

Optionally, an embodiment of the present application further provides a consumable cartridge, including: a consumable body; and a consumable chip according to any of the embodiments of figures 1 to 3 described above.

Specifically, the consumable cartridge may be at least one of a common consumable cartridge such as an ink cartridge, a selenium drum, and an ink bag cartridge.

Optionally, as shown in fig. 10, the embodiment of the present application further provides an electronic device 2000, which includes a processor 2400 and a memory 2200, where the memory 2200 stores a program or an instruction that can be executed on the processor 2400, and the program or the instruction implements each step of the working method embodiment of the consumable chip described above when executed by the processor 2400, and the steps achieve the same technical effects, so that repetition is avoided and no further description is given here.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the working method embodiment of any consumable chip described above, and can achieve the same technical effect, so that repetition is avoided, and no further description is given here. The readable storage medium includes a computer readable storage medium, such as Read-Only Memory (ROM), random access Memory (Random Access Memory RAM), magnetic disk or optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A consumable chip, comprising: the device comprises a power-on detection unit, a storage unit and a serial number switching unit;

2. The consumable chip of claim 1, wherein the power-on detection unit comprises: a trigger, a counter, a comparator and a detection module,

the comparator determines whether the printer does not output a signal or whether the signal output by the printer is a command signal or a glitch signal sent by the printer based on the counting result output by the counter, and correspondingly sends a first indication signal for indicating that the signal output by the printer is the command signal sent by the printer or sends a second indication signal for indicating that the signal output by the printer is the glitch signal or sends a third indication signal for indicating that the signal output by the printer does not exist to the detection module;

3. The consumable chip of claim 2, wherein the detection module is specifically configured to:

And if the power-on state of the printer is read from the target storage address sector of the storage unit to be the false power-on state, writing the true power-on state into the target storage address sector when the signal sent by the comparator is received to be the first indication signal.

4. The consumable chip of claim 2, wherein the detection module is specifically configured to:

5. The consumable chip of claim 3 or 4, wherein the detection module is further configured to:

6. The consumable chip of claim 1, wherein the serial number switching unit is specifically configured to:

7. The consumable chip of claim 1, wherein the serial number switching unit is specifically configured to:

8. The consumable chip of claim 1, wherein the serial number switching unit is specifically configured to:

9. The consumable chip of claim 1, wherein the serial number switching unit is specifically configured to:

10. The consumable chip of claim 9, wherein the plurality of consumable serial number authentication data are stored in the memory unit in the form of a code table and a code table pointer, one consumable serial number authentication data is stored in one code table,

writing the code table pointer added with 1 into the storage unit;

11. The consumable chip of claim 1, further comprising a static random access memory,

The serial number switching unit is further configured to: and after the printer is powered on, moving the target consumable serial number authentication data from the storage unit to the static random access memory.

12. The consumable chip of claim 1, wherein the serial number switching unit is specifically configured to:

13. A method of operating a consumable chip, the method comprising:

Updating the power-on state of the printer stored in a storage unit of the consumable chip based on the power-on state, wherein the storage unit is used for storing a plurality of consumable serial number authentication data, authentication states corresponding to consumable serial numbers and the power-on state of the printer, the authentication states comprise a state which is not authenticated by the printer, an authentication state which is passed by the printer and an authentication state which is not passed by the printer, and the power-on states comprise a true power-on state and a false power-on state;

14. The method of claim 13, wherein detecting the power-up state of the printer based on the signal output by the printer when the consumable chip is electrically connected to the printer comprises:

Detecting a falling edge or a rising edge of a signal output by the printer;

counting the number of falling edges or rising edges of a signal output by the printer;

based on the counting result output by the counter, determining whether the printer does not output a signal or whether the signal output by the printer is a command signal or a glitch signal sent by the printer;

15. The method of claim 14, wherein updating the power-on state of the printer stored in the storage unit of the consumable chip based on the power-on state comprises:

16. The method of claim 14, wherein updating the power-on state of the printer stored in the storage unit of the consumable chip based on the power-on state comprises:

17. The method according to claim 15 or 16, wherein the updating the power-on state of the printer stored in the storage unit of the consumable chip based on the power-on state further comprises:

If it is determined that the printer does not output a signal or the output signal is the glitch signal, a pseudo-power-on state of the target memory address sector is maintained.

18. The method according to claim 13, wherein updating the authentication status of the target consumable serial number stored in the storage unit based on the authentication result of the target consumable serial number fed back by the printer comprises:

19. The method according to claim 13, wherein the switching consumable serial number authentication data that authenticates with the printer based on at least one of a power-on state stored in the storage unit, a next power-on state of the printer detected by the power-on detection unit, and an authentication state of the target consumable serial number, includes:

20. The method according to claim 13, wherein the switching consumable serial number authentication data that authenticates with the printer based on at least one of a power-on state stored in the storage unit, a next power-on state of the printer detected by the power-on detection unit, and an authentication state of the target consumable serial number, includes:

21. The method according to claim 13, wherein the switching consumable serial number authentication data that authenticates with the printer based on at least one of a power-on state stored in the storage unit, a next power-on state of the printer detected by the power-on detection unit, and an authentication state of the target consumable serial number, includes:

22. The method according to claim 21, wherein the plurality of consumable serial number authentication data are stored in the memory unit in the form of a code table and a code table pointer, one consumable serial number authentication data is stored in one code table,

writing the code table pointer added with 1 into the storage unit;

23. The method as recited in claim 13, further comprising:

And after the printer is powered on, moving the target consumable serial number authentication data from the storage unit to a static random access memory of the consumable chip.

24. The method according to claim 13, wherein the switching consumable serial number authentication data that authenticates with the printer based on at least one of a power-on state stored in the storage unit, a next power-on state of the printer detected by the power-on detection unit, and an authentication state of the target consumable serial number, includes:

25. A consumable cartridge, comprising:

a consumable body; and

Consumable chip according to any one of claims 1 to 12.