CN102442073A - Universal chip, communication method of universal chip, consumable container and imaging equipment - Google Patents
Universal chip, communication method of universal chip, consumable container and imaging equipment Download PDFInfo
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Abstract
The invention provides a universal chip for a consumable container, which comprises a memory unit, a control unit, an interface unit, a data acquisition unit and a state machine model selection unit, wherein the memory unit is used for storing information related to the consumable container, including parameter information and metrical information; the control unit is used for controlling the information access in the memory unit; the interface unit is used for providing an interface or a protocol for communication; the data acquisition unit is used for acquiring identification information of imaging equipment; and the state machine model selection unit is used for determining the model of the imaging equipment corresponding to the universal chip currently according to the identification information and a data operation state in which the universal chip is. The invention further provides a communication method of the universal chip, the consumable container with the universal chip and the imaging equipment. By adopting the universal chip, the communication method of the universal chip, the consumable container and the imaging equipment disclosed by the invention, the problem of failed matching between the universal chip and a printer resulted from cross of key authentication information is avoided; furthermore, the universal chip has individual service life.
Description
Technical field
The present invention relates to a kind of general-purpose chip and communication means thereof; Specifically; Relate to a kind of general-purpose chip that is used for consumable container and with the method that imaging device communicates, the invention still further relates to the consumable container that this general-purpose chip is installed on it, the imaging device that uses this consumable container.
Background technology
The said imaging device of the present invention is meant electrical signal conversion such as literal, patterns on media such as paper, forming the equipment of visual image, for example printer, duplicator, facsimile machine and the all-in-one multifunctional machine of ink-jet approaches or laser class.
Two types of printers commonly used are ink-jet printer and laser printer, and ink-jet printer uses the print cartridge that accommodates ink to printer the ink of printing usefulness to be provided as consumable container, needs literal or the pattern printed with formation on paper; Laser printer then uses the cartridge that accommodates carbon dust as consumable container the carbon dust of printing usefulness to be provided to printer; With literal or the pattern that formation on medium need be printed, the image-forming principle of duplicator, facsimile machine and all-in-one multifunctional machine, use consumable container etc. are basic identical with printer.The said consumptive material of the present invention is meant ink or carbon dust; The communication means of general-purpose chip is meant that this general-purpose chip is installed on the consumable container; When consumable container is installed to when carrying out work on the imaging device communication means that carries out between general-purpose chip and the imaging device master controller.
During imaging device visit consumable chip 10, at first consumable chip is verified, whether correct with the key of checking consumable chip; Promptly at first send a group key authentication command to consumable chip 10 by imaging device; After consumable chip 10 is received this authentication command, take out cryptographic algorithms attached to the data in the authentication command and consumable chip 10 inside and carry out computing and obtain a group key authentication information, then; Consumable chip 10 returns this good key authentication information to imaging device; The information that the imaging device basis is received is judged the legitimacy of this consumable chip 10, if this consumable chip 10 is legal, then the consumable chip 10 of coupling is read or write the operation of memory; Otherwise the imaging device prompting makes mistakes or unmatched information.
For example: generally speaking, the key authentication order that A money printer sends is: " 2B8A ... ", wherein: " 0X2B " is the key authentication order; " 8A " is the key authentication sign indicating number, " ... " Be other value of key authentication sign indicating number random data group, if the key authentication sign indicating number is identical; These other Value Datas are also identical, and after the consumable chip of A money printer received this order and data, the " return " key" authentication information was through calculating also: " 2B30 ... " After A money printer interface is received this key authentication information of returning, through confirming that the cipher authentication information that this consumable chip returns is legal; Therefore, this printer can carry out read-write operation to the memory of this consumable chip.Similarly, the order of B money printer key authentication is: " 2BE8 ... ", after the consumable chip of B money printer receives this order and data; Calculating also, the " return " key" authentication information is: " 2B74 ... " After B money printer interface is received this information, through confirming that the cipher authentication information that this consumable chip returns is legal; Therefore, can carry out read-write operation to the memory of this consumable chip.
Usually, the form of the key authentication order that printer sends is identical, that is: 1 byte key authentication order+key authentication random data group; Key authentication with the money printer is identical, that is: the key authentication solicited message of same printer model is the same, utilizes this characteristics; Many producers adopt the whole bag of tricks to obtain authentication code is common to each type of printer with manufacturing general-purpose chip; Conventional method is: the key authentication information of obtaining 1 byte is to carry out the authentication coupling, and some producer also is provided with a data collecting unit in chip, be used to gather the some bytes after key authentication is ordered (as: " 0X2B "); So that printer carries out the authentication coupling; For example: can select first byte after key authentication is ordered, select " 0X8A ", and B money printer is selected " 0XE8 " like A money printer; Use this method, can make the consumable chip that is common to each printer--general-purpose chip; Yet; Increasing along with printer model, the situation that the key authentication random information unavoidably can occur intersecting is if still adopt above-mentioned method to carry out the general-purpose chip authentication; Tend to occur the chaotic situation of general-purpose chip selective printing machine model; Cause printer can not discern the general-purpose chip on the cartridge of installing, printer occurs and report an error, make that cartridge can't continue to use; And owing to be provided with the information that is fit to many moneys printer in the general-purpose chip of this method manufacturing of employing, the consumable container that is provided with this general-purpose chip is after finishing using on certain printer; Be installed to when using on another printer, another printer chip information corresponding because of general-purpose chip was not used again, and information is still brand-new; The still spendable situation of this consumable container of printer prompts then can occur, and in fact, the consumptive material in this consumable container has used up; Can not on another printer, continue to use, if this general-purpose chip is applicable to N money printer, then this general-purpose chip has N life-span; So, make troubles for user's use.
Summary of the invention
Main purpose of the present invention provides a kind of avoiding and joins the general-purpose chip that type is failed, had the single life-span because of key authentication information intersection causes general-purpose chip and imaging device, to solve the weak point of above-mentioned prior art.
For realizing above-mentioned purpose; General-purpose chip provided by the present invention is used for consumable container; Comprise: memory cell, control module, interface unit, data acquisition unit and state machine type selecting unit, memory cell is used to store the information relevant with consumable container, comprises parameter information and metrical information; Control module is used for the access of control store unit internal information; Interface unit is used to communication interface or agreement is provided; Data acquisition unit is used to gather the identifying information of imaging device; The current pairing imaging device model of general-purpose chip is confirmed according to identifying information and the residing data manipulation state of general-purpose chip in state machine type selecting unit.
Visible by last scheme; In the general-purpose chip provided by the present invention; This is used between these states, shifting and the Mathematical Modeling of behavior such as action at finite state machine to utilize state machine, and its output depends on input and state, promptly is: read or write state according to the residing data of general-purpose chip; With the current imaging device model of choosing as the final imaging device type selecting of confirming; Chip uses this imaging device corresponding chip information and printer to carry out data communication, thus, can avoid effectively having now that general-purpose chip is gathered identification signal merely and the identification confusion phenomena that causes.
Its further scheme is; This general-purpose chip comprises that also consumption detects the processing section; Said consumption detects the processing section and detects the printing consumption information in the said metrical information in real time, and in said printing consumption information during more than or equal to p%, lock imaging unit type information; Wherein, the value of p is the arbitrary numerical value in 2 ~ 100.
Adopt consumption to detect handling part and assign to detect in real time the printing consumption information in the metrical information, when printing consumption, as more than or equal to 30% o'clock more than or equal to a certain amount of; Explain that the cartridge that this general-purpose chip is installed fixedly has been used in this imaging device; Therefore, lock the imaging device model of current use, follow-up this general-purpose chip uses the pairing chip information of imaging device and the printer of locking to carry out data communication; Therefore; Can be fixed in a certain imaging device of choosing model, be installed on the different imaging devices after avoiding existing general-purpose chip to use up a life-span, video data is brand-new and have a phenomenon in a plurality of life-spans; Also avoid the selected model of existing general-purpose chip installation to cause printing test page or leaf when manufacturer produces, and arrive the drawback that point-of-sale terminal can't be general.
Another object of the present invention provides a kind of communication means of above-mentioned general-purpose chip; Its concrete grammar is: imaging device powers on when using; At first gather the identifying information and the starting state machine type selecting unit of imaging device; Select corresponding imaging device model by state machine type selecting unit according to identifying information then, and carry out state machine type selecting unit is chosen for the last time before the data read-write operation pairing chip information of imaging device model and imaging device with general-purpose chip and communicate.
When imaging device powers on; Can send identifying information to chip, this programme is through the above-mentioned identifying information of collection, and starting state machine type selecting unit is to select corresponding imaging device model according to this identifying information; When general-purpose chip is in sense data or write the state of data; The current imaging device model of choosing as the final imaging device model of confirming, and is carried out data communication with imaging device according to the pairing chip information of this imaging device model, even if imaging device sends other signals at this moment; This general-purpose chip can type selecting not made mistakes yet, thereby avoids occurring the chaotic situation of type selecting.
Its further scheme is to detect the printing consumption in the metrical information in real time, i.e. consumption information; When printing consumption information more than or equal to p%; Give the model lock cell with amount detection unit output type locking signal, the model lock cell locks pairing imaging device model after receiving this signal, uses pairing chip information of imaging device model and imaging device to carry out data communication to guarantee this general-purpose chip always; Wherein, the value of p is arbitrary numerical value of 2 ~ 100.
Adopt to detect in real time and print consumption and, in the time of can avoiding the user that one consumable container is applied to many imaging devices and the phenomenon in a plurality of chip life-span that occurs is easy to use in the method for printing lock imaging unit type when a certain amount of.
A purpose more of the present invention provides a kind of consumable container, and this consumable container comprises housing, and this housing surrounds the cavity that holds consumptive material, and aforesaid general-purpose chip is installed on the outer wall of housing.
Visible by last scheme, consumable container provided by the present invention can be realized the correct type selecting of printer model, avoids type selecting confusion and consumable container successively to install and be used in the phenomenon of many life-spans that is occurred on the different imaging devices.
An also purpose of the present invention provides a kind of imaging device, and this imaging device comprises image-generating unit, and aforesaid consumable container removably is installed in the image-generating unit.
Owing to adopt such scheme, the general-purpose chip type selecting that can avoid on this imaging device being mounted thereon is chaotic and successively use different imaging devices and the phenomenon of many life-spans that causes.
Description of drawings
Fig. 1 is the structural representation of existing consumable container chip.
Fig. 2 is the structural representation of the present invention's general-purpose chip embodiment.
Fig. 3 is the structural representation of the present invention's general-purpose chip embodiment integrated circuit part.
Fig. 4 is the state machine type selecting exemplary plot of the present invention's general-purpose chip embodiment.
Fig. 5 is the flow chart of the present invention's general-purpose chip data communications method.
Fig. 6 is the structural representation sketch of the present invention's cartridge embodiment.
Fig. 7 is the structural representation of the present invention's printer embodiment.
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
The specific embodiment
General-purpose chip embodiment
Referring to Fig. 2; A kind of general-purpose chip 30 that is used for cartridge; Comprise: substrate 31 be arranged on the electronic module 32 on the substrate 31; Include in the electronic module 32 communication unit that receives laser printer signal and electric energy and with realization and laser printer between the integrated circuit part of communicating by letter, above structure is consistent with existing consumable chip; The cartridge that this general-purpose chip is installed is packed into behind the laser printer; Establish a communications link with the laser printer master controller; Also be provided with a memory cell in the laser printer master controller, store the identifying information that is used to identify the laser printer type in this memory cell; The structure of general-purpose chip integrated circuit part is referring to Fig. 3; Comprising: control module, memory cell, interface unit, data acquisition unit, state machine type selecting unit and consumption detect the processing section; Memory cell is used to store the information relevant with cartridge; Comprise parameter information and metrical information, parameter information is the parameter information that communicates with laser printer, comprising: cartridge model, toner color and printer model etc.; Comprise in the metrical information: metrical informations such as carbon dust surplus, printing consumption; Adopt nonvolatile memory as memory cell in the present embodiment, store in its information area: A type information, Type B information, C type information, D type information and E type information, metrical information comprise above-mentioned each model metrical informations such as carbon dust surplus pairing, that communicate with laser printer etc.; Control module links to each other with interface unit and memory cell respectively, is used for the access of control store unit internal information; Interface unit is the interface that this general-purpose chip and laser printer carry out data communication, is used to communication interface or agreement are provided, and the power supply of general-purpose chip is also provided through interface unit by laser printer; Data acquisition unit links to each other with interface unit and state machine type selecting unit respectively, is used to gather the identifying information of laser printer, through data acquisition unit, can extract the identifying information in the laser printer memory cell; State machine type selecting unit is connected with memory cell, and it confirms the current pairing laser printer model of general-purpose chip according to the input and the residing data manipulation state of general-purpose chip of identifying information; Consumption detects the processing section and also is connected with memory cell; It comprises interconnection with amount detection unit and model lock cell; Be used for detecting the printing amount of metrical information with amount detection unit, and at printing amount more than or equal to 20% o'clock, output model locking signal; After the model lock cell receives locking signal; Output model lock command is promptly carried out the locking bit of revising memory cell and is locked model, so that the current pairing chip information of laser printer model of the fixing use of this general-purpose chip.
(finite-state machine FSM), claims finite-state automata again to state machine, is called for short state machine, is the Mathematical Modeling of limited state of expression and behaviors such as transfer between these states and action; A wherein limited state storage be information about the past; Its reflection changes from the identical beginning input in the moment till now; Shift the indication change; And come really to make the condition that shifts generation to describe it with satisfying, action is will carry out movable description at given time, comprising: get into action, release action, input action and transfer action.Utilize the These characteristics of state machine; Adopted state machine type selecting unit in the present embodiment; According to the type selecting that the identifying information and the general-purpose chip state of input are realized the laser printer model, its input is key authentication order first byte afterwards of data acquisition unit output, and according to input state before; The model of selecting promptly; According to the state machine circuit or the logic of this unit, can confirm the laser printer model that current general-purpose chip is used then, and come the corresponding data of select storage unit with the laser printer type information of confirming; General-purpose chip uses these data and laser printer to communicate, write down the operating position of this cartridge of storage in print procedure, as: information such as printing amount, use date, carbon dust surplus.
The model lock cell is after the model locking signal that receives with amount detection unit output; Export a lock command; The current laser printer model of choosing is locked as fixedly model; Even have new authenticate key state machine signal also can't again type selecting be changed over other models this moment, thereby when preventing that the cartridge that uses up is installed on other laser printers, the brand-new and problem that can continue to use of general-purpose chip prompting.
Each unit in the above-mentioned general-purpose chip, also available a small amount of peripheral circuit and microcontroller (MCU) realize that logic control relation wherein can realize through coding.
Below illustrate the key authentication information and the process of present laser printer:
The key authentication process of E money laser printer is following:
Laser printer request key authentication: 0X2BE6 ... (data of getting behind the 0X2B are 0XE6)
Chip is the " return " key" authentication information after calculating: 2BA1
Laser printer request key authentication: 0X2BE6 ... (data of getting behind the 0X2B are 0XE6)
Chip calculates back " return " key" authentication information: 0X2BA1
Laser printer request key authentication: 0X2B8A ... (data of getting behind the 0X2B are 0X8A)
Chip calculates back " return " key" authentication information: 0X2B02
Laser printer reading chip memory address information: 0X3500
Chip returns this address information: 0X3502 ...
The key authentication process of D money laser printer is following:
Laser printer request key authentication: 0X2BE6 ... (data of getting behind the 0X2B are 0XE6)
Chip calculates back " return " key" authentication information: 0X2BA1
Laser printer request key authentication: 0X2BE6 ... (data of getting behind the 0X2B are 0XE6)
Chip calculates back " return " key" authentication information: 0X2BA1
Laser printer reads or writes chip memory information (similar with E money laser printer, as to omit)
The key authentication process of C money laser printer is following:
Laser printer request key authentication: 0X2B9F ... (data of getting behind the 0X2B are 0X9F)
Chip calculates back " return " key" authentication information: 0X2B35
Laser printer request key authentication: 0X2BE8 ... (data of getting behind the 0X2B are 0XE8)
Chip calculates back " return " key" authentication information: 0X2B56
Laser printer request key authentication: 0X2BE8 ... (data of getting behind the 0X2B are 0XE8)
Chip calculates back " return " key" authentication information: 0X2B56
Laser printer reads or writes chip memory information (similar with E money laser printer, as to omit) here.
The key authentication process of B money laser printer is following:
Laser printer request key authentication: 0X2BE8 ... (data of getting behind the 0X2B are 0XE8)
Chip calculates back " return " key" authentication information: 0X2B74
Laser printer reads or writes chip memory information (similar with E money laser printer, as to omit) here.
The key authentication process of A money laser printer is following:
Laser printer request key authentication: 0X2B8A ... (data of getting behind the 0X2B are 0X8A)
Chip calculates back " return " key" authentication information: 0X2B30
Laser printer reads or writes chip memory information (similar with E money laser printer, as to omit) here.
Therefore; The key authentication information of the key authentication information of the key authentication information of E money laser printer, A money laser printer and D money laser printer is intersected, and promptly the key authentication information of the key authentication information of A money laser printer and D money laser printer is the part of the key authentication information of E money laser printer; The key authentication information of B money laser printer is also intersected with the key authentication information of C money laser printer, and promptly the key authentication information of B money laser printer is the part of the key authentication information of C money laser printer.If adopt existing general-purpose chip and communication means to come the model confusion phenomena to occur, thereby cause the problem that existing general-purpose chip selects the laser printer model to make mistakes because authentication information crosses to the laser printer type selecting.
The general-purpose chip that present embodiment provided can address the above problem.In the memory cell of the general-purpose chip of present embodiment; Store the information of H series brand laser printer (comprising A money laser printer, B money laser printer, C money laser printer and D money laser printer) and C series brand printer laser printers such as (like E money laser printers); Be laser printer type information and data message; The order of laser printer key authentication is 0X2B; Present embodiment adopts first byte after data acquisition unit takes out authentication command 0X2B, also can take out thereafter any byte or check byte; Then, the laser printer model is confirmed according to the authentication command and the residing data manipulation state of general-purpose chip of laser printer input in state machine type selecting unit, if this general-purpose chip is in read message or write information state at present; Then the laser printer model of current type selecting is the pairing laser printer type information of this general-purpose chip; This laser printer type information is corresponding parameters information and metrical information, specifically, is A money laser printer if confirm; Then select the information data of A money laser printer; This general-purpose chip uses A pairing information data of money laser printer and A money laser printer to communicate, if confirm it is E money laser printer, then selectes the information data of E money laser printer; This general-purpose chip uses the information data and the E money laser printer of E money laser printer to communicate; The type selecting principle of other types laser printer is the same, therefore, adopts said structure; Can be so that general-purpose chip be common to the laser printer of each model, and the laser printer model can not occur and select chaotic problem.
Like Fig. 5, the course of work of the general-purpose chip state machine type selecting unit of present embodiment is following:
IDLE (free time) state: this state is that laser printer powers on to general-purpose chip, prepares the state that general-purpose chip is carried out data manipulation; Or laser printer begins the general-purpose chip memory cell is carried out the state of read command operation or write order operation (Read/Write); Above-mentioned two states is defined as the IDLE state, and general-purpose chip can carry out type selecting again under the IDLE state.
After general-purpose chip gets into IDLE; If laser printer is to the authentication command of general-purpose chip input 0X9F; Then general-purpose chip state machine type selecting unit type selecting is a C money laser printer type information; At this moment; Operate then state machine type selecting unit and get back to the IDLE state if laser printer carries out Read/Write to general-purpose chip, after this, all Read/Write operations that laser printer is carried out general-purpose chip all are the corresponding C money laser printer type informations of the selected model in general-purpose chip state machine type selecting unit this moment.Like the current type selecting in state machine type selecting unit is C money laser printer model, but carries out Read/Write operation, then follow-uply imports 0X9F authentication command or 0XE8 authentication command again, and this moment, general-purpose chip state machine type selecting all was a C money laser printer type information.After general-purpose chip gets into IDLE; If directly to the authentication command of chip input 0XE8, then the type selecting of general-purpose chip state machine type selecting unit is a B money laser printer type information to printer, after this; Even printer is repeatedly imported the authentication command of 0XE8; The type selecting of general-purpose chip state machine type selecting unit still is maintained B money laser printer type information, up to laser printer general-purpose chip is carried out the Read/Write operation, makes general-purpose chip get back to the IDLE state and can carry out type selecting next time.After general-purpose chip gets into IDLE; If printer is to the authentication command of general-purpose chip input 0XE6; The type selecting of state machine type selecting unit is a D money laser printer type information; This moment, then general-purpose chip was got back to the IDLE state if laser printer is carried out the Read/Write operation to general-purpose chip, and after this laser printer all is the corresponding D money laser printer type information of the selected model in general-purpose chip state machine type selecting unit this moment to all Read/Write operations of general-purpose chip execution; Like the current type selecting in state machine type selecting unit is D money laser printer model; But do not carry out the Read/Write operation; Even laser printer is repeatedly imported the authentication command of 0XE6; The type selecting of general-purpose chip state machine type selecting unit still is maintained D money laser printer type information, if the authentication command of laser printer input this moment 0X8A, this moment, the type selecting of general-purpose chip state machine type selecting unit was an E money model information; Even follow-up laser printer is repeatedly imported the authentication command of 0X8A again, the type selecting of this general-purpose chip state machine type selecting unit still is maintained E money laser printer type information.After getting into IDLE; If the authentication command of laser printer input 0X8A, then the type selecting of general-purpose chip state machine type selecting unit is an A money laser printer type information, and after this laser printer is repeatedly imported the authentication command of 0X8A; Type selecting still is maintained A money laser printer type information; Up to laser printer general-purpose chip is carried out the Read/Write operation, when general-purpose chip is got back to the IDLE state, just can carry out type selecting next time.
Because most of laser printer is during to the general-purpose chip executable operations; General powering on to general-purpose chip earlier; And then send out the key authentication order and carry out authentication, if general-purpose chip is legal, then reads the general-purpose chip storage operation or write the chip memory operation to carry out printing; Thereby play the state recording effect of cartridge use; Therefore, general-purpose chip embodiment of the present invention gets the determined laser printer model in current state machine type selecting unit when being employed in and being operated by the laser printer read-write memory, can guarantee that general-purpose chip correctly selects corresponding model.Above-mentioned state machine type selecting exemplary plot is sharp a kind of the giving an example of this enforcement, and its type selecting logic can reset according to actual needs.
As a kind of conversion of general-purpose chip embodiment of the present invention, each modular unit in the general-purpose chip can realize that its logic control relation can realize through the hardware programming language through a small amount of peripheral circuit and PLD (as: FPGA or CPLD); Can also realize the function of each modular unit with application-specific integrated circuit ASIC, above-mentioned conversion all can realize the object of the invention.
Another kind of conversion as general-purpose chip embodiment of the present invention; Consumption can be set detect the processing section; Be that the general-purpose chip integrated circuit partly comprises: the present invention's the goal of the invention of avoiding the type selecting confusion also can be realized in control module, memory cell, interface unit, data acquisition unit and state machine type selecting unit, this conversion.
Another conversion as general-purpose chip embodiment of the present invention; The consumption detection value of printing amount can be provided with according to actual conditions in advance; Promptly can be that value is arbitrary integer or the decimal in 2 ~ 100, this conversion can realize the object of the invention equally; Because of carbon dust actual consumption in print procedure often has deviation with general-purpose chip; And for the actual toner amount; Laser printer can detect its carbon dust amount, and to be referred to as the powder amount low near ruing out of; Also can detect its carbon dust and run out of and be referred to as the powder amount to the greatest extent, laser printer generally also has the low and most function of prompting powder amount of prompting powder amount, and in the general-purpose chip memory cell record; Also can be with amount detection unit through detecting the foundation that the powder amount is low or the most information of powder amount provides locking signal to carry out the model locking to the model lock cell, above-mentioned conversion can realize the object of the invention equally.
Another conversion as general-purpose chip embodiment of the present invention; This general-purpose chip can also be the general-purpose chip that is applied on the print cartridge; What store in its memory cell is the information relevant with print cartridge and ink, and this print cartridge general-purpose chip can be common to the pairing ink-jet printer of institute's storage class in the chip.
General-purpose chip communication means embodiment
This method is the method that general-purpose chip and laser printer carry out data communication among the above-mentioned general-purpose chip embodiment, and as above general-purpose chip embodiment is said for its general-purpose chip structure, repeats no more here.This method is that laser printer powers on when using; At first gather the identifying information and the starting state machine type selecting unit of laser printer; Select corresponding laser printer model by state machine type selecting unit according to identifying information then, and communicate with general-purpose chip pairing chip information of laser printer model and the laser printer that last state machine type selecting unit is chosen before the operation that read and write data; In the type selecting process; General-purpose chip detects the printing consumption in the information area in real time; When printing consumption more than or equal to 20% the time; Give the model lock cell with amount detection unit output locking signal, pairing laser printer model in the model locking unit locks memory cell uses the pairing general-purpose chip information of laser printer model and the laser printer of this locking to carry out data communication to guarantee this general-purpose chip always; Referring to Fig. 6, concrete steps are following:
S100: beginning, laser printer powers on; Laser printer powers on to general-purpose chip, and this moment, state machine type selecting unit was in the IDLE state, and preparation is handled with type selecting the key authentication information of laser printer and operated;
S101: judge whether general-purpose chip is in locking model state, if, then get into step s400, otherwise, step s200 got into; Whether the model that this step is used to select before judging state machine type selecting unit is the fixedly model of locking, whether promptly judges consumption before more than 20%, if; Directly adopt this model to carry out data communication; Need not carry out type selecting, otherwise, the type selecting operation continued;
S200: starting state machine type selecting unit; General-purpose chip starting state machine type selecting unit is handled and type selecting the key authentication information of laser printer; This type selecting process is carried out type selecting through certain state machine graph of a relation; The result depends on the input of key authentication information and the current data manipulation state of general-purpose chip of laser printer; Be in IDLE like general-purpose chip; Then be in the type selecting incipient stage, be in a certain selected model like general-purpose chip, then the output result of next time is relevant with the authentication information and the current selected model of laser printer input;
S300: whether judge laser printer in the information that reads or writes the general-purpose chip memory cell,, then get back to step s200 to continue the type selecting operation of state machine, if then get into step s301 if not; When detecting laser printer and read or write the general-purpose chip signal; Description status machine type selecting unit has finished type selecting, because laser printer is any when beginning to read or write the general-purpose chip memory cell at every turn, all will passes through key authentication and can carry out; In case read or write end; Then, when read or write general-purpose chip next time again, carry out key authentication again again to the general-purpose chip outage; Therefore, the beginning of laser printer read-write operation explains that then type selecting finishes;
S301: judge that the pairing printing consumption of current laser printer model is more than or equal to 20%? If, then get into step s302, otherwise, step s400 got into; This step prints consumption and detects; Whether the printing consumption that general-purpose chip detects current use laser printer model arrives setting value, if reach, then locks the laser printer model of current use; Initiate mode machine type selecting unit does not carry out type selecting when power on next time; And communicate with the laser printer model data and the laser printer of locking, if do not reach, get into the communication steps of s400;
S302: lock operation is carried out in the consumption test section, pairing laser printer model in the locking memory cell;
S400: communicate with state machine type selecting unit current definite laser printer type information and laser printer; Store the data of a lot of laser printer models in the general-purpose chip memory cell; As: A money laser printer type information, B money laser printer type information, C money laser printer type information, D money laser printer type information and E money laser printer type information; After selected certain the laser printer model in state machine type selecting unit; General-purpose chip then selects this laser printer model corresponding information and laser printer to communicate; After the selected B money laser printer model in state machine type selecting unit, then selected B money laser printer chip information district is to read relevant information and laser printer communicates;
S500: finish.After laser printer is accomplished the chip read or write, is temporarily no longer carried out read or write, the powered operation that then can break off chip.When visit again next time, restart to power on and the type selecting operation from the first step.
Method provided by the present invention promptly can be applicable on the cartridge general-purpose chip, also can be applied to equally also can realize the object of the invention on the print cartridge general-purpose chip.
As a kind of conversion of general-purpose chip communication means embodiment of the present invention, the percentage of printing consumption can be the arbitrary numerical value between 2% ~ 100%, comes to be provided with in advance according to actual conditions, and this conversion can realize the object of the invention equally.
Another kind of conversion as general-purpose chip data communications method embodiment of the present invention; Can omit step to the detection and the model locking of printing consumption; Promptly omit step s101, s301 and s302, only adopt state machine type selecting unit to confirm current laser printer model according to the authentication command of input and the data manipulation state of chip.
Cartridge embodiment
Carbon powder cartridge for laser printer, its structural representation sketch is as shown in Figure 7, and cartridge comprises housing, and housing surrounds the cavity that holds consumptive material, and the as above general-purpose chip described in the general-purpose chip embodiment 30 is installed on the outer wall of housing.
Printer embodiment
Laser printer comprises image-generating unit, dismountable in the image-generating unit above-mentioned cartridge is installed, and as shown in Figure 8, general-purpose chip is not shown among the figure.
As a kind of conversion of printer embodiment of the present invention, this imaging device can be duplicator or facsimile machine or all-in-one multifunctional machine etc.
The invention is not restricted to above-mentioned each embodiment and conversion, other also should be included in the protection domain of claim of the present invention based on technical scheme of the present invention and without prejudice to the structural change of the object of the invention.
Claims (7)
1. general-purpose chip is used for consumable container, comprises
Memory cell is used to store the information relevant with said consumable container, comprises parameter information and metrical information;
Control module is used to control the access of said memory cell internal information;
Interface unit is used to communication interface or agreement is provided;
Data acquisition unit is used to gather the identifying information of imaging device;
It is characterized in that:
State machine type selecting unit, the current pairing imaging device model of said general-purpose chip is confirmed according to the identifying information and the residing data manipulation state of said general-purpose chip of said input in said state machine type selecting unit.
2. general-purpose chip as claimed in claim 1 is characterized in that:
Comprise that also consumption detects the processing section; Said consumption detects the processing section and detects the printing consumption information in the said metrical information in real time, and during more than or equal to p%, locks said imaging device model in said printing consumption information; Wherein, the value of p is the arbitrary numerical value in 2 ~ 100.
3. general-purpose chip as claimed in claim 2 is characterized in that:
Said consumption detect the processing section comprise interconnection with amount detection unit and model lock cell;
Saidly be used for detecting the printing consumption information of said metrical information with amount detection unit, and in said printing consumption information during more than or equal to p%, the output locking signal;
Said model lock cell receives said locking signal, carries out lock command, with the current imaging device model of fixing use.
4. general-purpose chip communication means, this general-purpose chip is used for consumable container, and this general-purpose chip comprises:
Memory cell is used to store the information relevant with said consumable container, comprises parameter information and metrical information;
Control module is used to control the access of said memory cell internal information;
Interface unit is used to communication interface or agreement is provided;
Data acquisition unit is used to gather the identifying information of imaging device;
The current pairing imaging device model of said general-purpose chip according to the identifying information and the residing data manipulation state of said general-purpose chip of said input, is confirmed in state machine type selecting unit;
Imaging device powers on when using; Said data acquisition unit is at first gathered the identifying information of said imaging device and is started said state machine type selecting unit; Select corresponding imaging device model by said state machine type selecting unit according to said identifying information then, and carry out said state machine type selecting unit is chosen for the last time before the data read-write operation pairing information of imaging device model and said imaging device with said general-purpose chip and communicate.
5. general-purpose chip communication means as claimed in claim 4 is characterized in that:
Detect the printing consumption information in the said metrical information in real time; When said printing consumption information during more than or equal to p%; Saidly give said model lock cell with amount detection unit output locking signal, the said imaging device model of said model locking unit locks uses the pairing information of imaging device model and the imaging device of said locking to communicate to guarantee this general-purpose chip always; Wherein, the value of p is arbitrary numerical value of 2 ~ 100.
6. consumable container comprises housing, and said housing surrounds the cavity that holds consumptive material,
It is characterized in that:
General-purpose chip as claimed in claim 1 is installed on the outer wall of said housing.
7. imaging device comprises image-generating unit,
It is characterized in that:
Consumable container as claimed in claim 6 removably is installed in the said image-generating unit.
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| CN2011102976522A CN102442073B (en) | 2011-09-27 | 2011-09-27 | Universal chip, communication method of universal chip, consumable container and imaging equipment |
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| CN2011102976522A CN102442073B (en) | 2011-09-27 | 2011-09-27 | Universal chip, communication method of universal chip, consumable container and imaging equipment |
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| CN102442073B CN102442073B (en) | 2013-11-27 |
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