CN103427448A - Power supply method of printer consumable chip - Google Patents

Power supply method of printer consumable chip Download PDF

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Publication number
CN103427448A
CN103427448A CN2012101649975A CN201210164997A CN103427448A CN 103427448 A CN103427448 A CN 103427448A CN 2012101649975 A CN2012101649975 A CN 2012101649975A CN 201210164997 A CN201210164997 A CN 201210164997A CN 103427448 A CN103427448 A CN 103427448A
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China
Prior art keywords
printer
power supply
accumulating unit
electricity accumulating
consumable chip
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CN2012101649975A
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Inventor
张少宇
虞少平
胡容铭
章征东
彭新平
孔明
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Hangzhou Chipjet Technology Co Ltd
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Hangzhou Chipjet Technology Co Ltd
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Priority to CN2012101649975A priority Critical patent/CN103427448A/en
Publication of CN103427448A publication Critical patent/CN103427448A/en
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Abstract

The invention discloses a power supply method of a printer consumable chip. The power supply method comprises the steps that during a printer power supply process, a printer power supply signal is used to respectively charge a first power storage unit and a second power storage unit, and a power supply is directly provided for the printer consumable chip when charging is carried out; when a printer non power supply signal exists, the non power supply signal is used to carry out an assistant charging operation for the first power storage unit; when a printer stops the power supply, the second power storage unit is called to provide a power supply for the printer consumable chip; and when the power supply stopping time of the printer is greater than or equal to the power supply time of the second power storage unit, the first power storage unit is called to provide a power supply for the printer consumable chip. According to the invention, the technical scheme of the power supply with double power storage functions is adopted; the chip's ability to adapt to an intermittent power supply work environment is effectively improved, wherein the chip uses the method; and the chip is entirely powered by the printer.

Description

A kind of method of supplying power to of consumable chip of printer
 
Technical field
The present invention relates to a kind of method of supplying power to of consumable chip of printer.
Background technology
Printer, as the output of computer, can be widely used in industry-by-industry and field, for modern office provides great facility.Existing printer can be divided into impact printer, ink-jet printer, laser printer according to adopted consumptive material.Impact printer is to impact carbon paper by 24 pins in printhead, thereby forms font; Ink-jet printer adopts the print cartridge that accommodates ink to spray ink as consumable container to paper, thereby forms and need printing character or pattern on paper; Laser printer uses the cartridge that accommodates carbon dust to spray carbon dust as consumable container to paper, forms so predefined word or pattern on paper.
In prior art, that print cartridge 1 or cartridge 2 all need to be at consumable chips 3 of box body outer setting, as shown in Figure 1, 2, consumable chip 3 when printer is worked for printer, exchanging at high speed the information in print cartridge 1 or cartridge 2, such as consumable items allowance, China ink/powder box date of manufacture etc. in China ink/powder box model, applicable printer model, ink color, box body.
As shown in Figure 3, consumable chip 3 includes substrate 4 and is arranged on a plurality of electric contacts 5 on substrate 4, electric contact 5 is connected with the contact probe on printer as communication unit, and wherein part electric contact 5 is for the power supply that receives printer and provide and power to electronic module; All the other electric contacts 5 are for transmission information.Electronic module 6 also is arranged on substrate, and is electrically connected to electric contact 5.As shown in Figure 4, electronic module 6 comprises control circuit, memory circuit and interface circuit, and wherein memory circuit is comprised of volatile memory and nonvolatile memory; Interface circuit is connected with electric contact, for and printer control to control between mainboard and carry out exchanges data, and the signal received is carried out being sent to control circuit after the processing such as filtering, time delay.Control circuit is logical circuit or microcontroller, the access of its control store inside circuit data.
Nonvolatile memory stores the information relevant to print cartridge/cartridge, such as consumable items allowance, China ink/powder box time-write interval etc. in China ink/powder box model, applicable printer model, ink color, box body.Volatile memory is used for for interim storage the data that exchange with printer, because the read or write speed of volatile memory is far faster than the read or write speed of nonvolatile memory, use the data of the interim exchange of volatile memory stores, can meet the speed of consumable chip and printer data exchange.
After print cartridge or cartridge are arranged on printer, on consumable chip, electric contact just is electrically connected to the contact probe on printer.During printer work, need to access at high speed the memory of consumable chip; Control circuit by respective data storage in nonvolatile memory to volatile memory, after printer stops accessing volatile memory, the data that printer was revised are stored in nonvolatile memory.During the printer browsing consumable chip, by printer, be the consumable chip power supply, power-on time is enough to guarantee the data write non-volatile memory inside of revising in volatile memory.
But along with printer technology is improved, shortened gradually the continuous power-on time of printer to consumable chip, each is free interval between the power supply phase continuously, has formed the intermittence power supply process.Power-on time directly causes the volatile memory data to have little time to be written in nonvolatile memory after shortening; Perhaps the volatile memory data can not keep, even also have little time within the next power supply phase like this, the data in volatile memory are written in nonvolatile memory.Printer shortens and causes the consumable chip data to fail to upgrade in time and cisco unity malfunction to the continuous power-on time of consumable chip.
In order to make up the short deficiency of the continuous power-on time of printer, a kind of consumable chip of powered battery scheme is provided in prior art, as shown in Figure 4, this chip is not in the situation that need the printer power supply to be powered continuously to electronic module is uninterrupted by battery, make electronic module constantly in power-up state, like this without the length of considering the continuous power-on time of printer.As long as in the situation that battery has the electric data that can keep volatile memory, and can carry out in time the operation in the data write non-volatile memory in volatile memory.This technical scheme exists significantly not enough, and whenever battery is all in the situation to the electronic module power supply, and this greatly reduces the battery utilization ratio, has shortened print cartridge/cartridge useful life.
For improving the battery utilization ratio, prior art also provides a kind of consumable chip that can utilize powered battery and printer power supply, the Chinese patent that for example August 31, disclosed notification number was CN201950971U in 2011, a kind of " consumable chip and consumable container " disclosed, this consumable chip has substrate, substrate is provided with communication unit and electronic module, communication unit has power supply terminal, substrate is provided with battery and electrical source exchange unit, the electrical source exchange unit comprises comparison circuit and gating circuit, comparison circuit has the first comparator, two inputs of the first comparator are connected with power supply terminal and battery respectively, the output of the first comparator is connected with the input of gating circuit, gating circuit is provided with the first switching device and the second switch device that operating state is contrary, the first switching device is connected between the output of power supply unit and gating circuit, the second switch device is connected between the output of power supply terminal and gating circuit, the output of gating circuit is powered to electronic module.The communication unit here is exactly the electric contact on substrate, and power supply terminal is the part electric contact.What this patent will solve is how during the printer power supply, by the printer power supply, when breaking away from the printer power supply, to be allowed battery powered problem.The function of this chip is, by the electrical source exchange unit is set, can when printer is powered, utilize the power supply of printer power supply as consumable chip, the power supply using battery as consumable chip when there is no the printer power supply.
Battery-powered while utilizing printer to power, do not have the printer power supply when although the disclosed technical scheme of this patent has been accomplished the printer power supply, analyze and still have larger defect from the actual use procedure of print cartridge/cartridge.At first, the powered battery technical scheme must be used battery, battery electric quantity is still to determine the consumable chip key factor in useful life, if battery-powered time does not reach ink/carbon dust service time, chip or cisco unity malfunction, cause the job stability of this type of print cartridge/cartridge very not good; Secondly, the electric weight of each battery is not equal to, and easily makes the job stability of print cartridge/cartridge of each batch inconsistent, affects product quality; The 3rd; the battery that the powered battery technical scheme is used finally abandons when the refuse garbage disposal with box body; contain a certain amount of heavy metal Hg in battery; as consumptive material print cartridge/the cartridge use amount is huge; consequent refuse rubbish quantity is also corresponding huge; if things go on like this can increase difficulty and the cost of protection of the environment, this has run counter to the proposal of society environmental protection.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method of supplying power to of consumable chip of printer that need not battery powered stable work in work.
Another technical problem that the present invention will solve is to provide a kind of method of supplying power to that is applicable to the consumable chip of printer of intermittence powered operation environment.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: this method of supplying power to comprise have by charging realize function of supplying power the first electricity accumulating unit and the second electricity accumulating unit, described the first electricity accumulating unit and the second electricity accumulating unit are all electric capacity, and the capacitance of storage of described the first electricity accumulating unit is greater than the capacitance of storage of the second electricity accumulating unit;
The first step, during the printer power supply, utilize the printer power supply signal to be respectively the first electricity accumulating unit and the charging of the second electricity accumulating unit, in charging, also for consumable chip of printer, directly provides power supply;
Second step, during the printer power supply, utilizing this non-power supply signal when the non-power supply signal of printer is arranged is that the first electricity accumulating unit is carried out the auxiliary charging operation;
The 3rd step, when printer is stopped power supply, keep the data in volatile memory by calling the second electricity accumulating unit for consumable chip of printer provides power supply;
The 4th step, when the printer time of stopping power supply is more than or equal to default limiting time, for providing power supply, consumable chip of printer carries out the operation in the data write non-volatile memory in volatile memory by calling the first electricity accumulating unit, when described default limiting time is less than the second electricity accumulating unit power-on time.
Be limited to the printer technology restriction, while obtaining external power source, can only obtain electric energy in the single continuous power supply time limit from printer.Because this continuous power-on time is of short duration, if only enough use for the externally fed resource of powering of single print cartridge/cartridge on printer, but on printer, a plurality of printer ink cartridges can be set, so allow consumable chip of printer normal operation and the two electricity accumulating units chargings for being equipped with on each chip on all print cartridges, just must take full advantage of outside confession electric resources.The design that the capacitance of storage of the first electricity accumulating unit is greater than the capacitance of storage of the second electricity accumulating unit can make the second electricity accumulating unit be full of at first electricity; The second electricity accumulating unit is directly the consumable chip of printer power supply again, has so just guaranteed that the second electricity accumulating unit can be powered to consumable chip of printer at once after the of short duration printer power supply phase finishes.The first electricity accumulating unit capacity is large, and the charging interval of relative the second electricity accumulating unit of charging interval is slightly long, so the first electricity accumulating unit charging interval must be less than the single continuous power-on time of printer.The time that non-power supply signal produces is positioned at the printer power supply time limit, in order to shorten the charging interval of the first electricity accumulating unit, except using the printer power supply signal from power supply terminal, it is the first electricity accumulating unit charging, it will be also the first electricity accumulating unit charging from the electric energy of the non-power supply signal of printer of communication signal terminal, thereby the charging interval that guarantees the first electricity accumulating unit also is less than the single continuous power-on time of printer, make the first electricity accumulating unit charging can be full of electricity in single printer is powered the phase continuously.
In the situation that guarantee that the first electricity accumulating unit and the second electricity accumulating unit can guarantee to be full of electric, the utilance that improves institute's electric power storage energy has important function to the job stability of raising consumable chip.Based on this purpose, when stopping power supply in the printer outside, the second electricity accumulating unit is first the consumable chip of printer power supply, by the first electricity accumulating unit, is then the consumable chip of printer power supply.The first electricity accumulating unit postpones time of power supply and the longlyest can not surpass the second electricity accumulating unit power-on time, if recover the printer power supply like this during the second electricity accumulating unit power supply, uses at once the printer power supply signal, charges to the second electricity accumulating unit simultaneously.The first electricity accumulating unit charge capacity is compared the second electricity accumulating unit electric weight and is wanted large, and after enabling the first electricity accumulating unit, it is the operation in the data write non-volatile memory in volatile memory that consumable chip of printer can be carried out write back operations.After this, even can not affecting, this print cartridge/cartridge of stopping using again normally do not use this consumable chip of printer.
As of the present invention preferred, in the process that described the first electricity accumulating unit utilizes the printer power supply signal to charge, when starting, the printer power supply just the first electricity accumulating unit is carried out to precharge operation.
Preferably described the first electricity accumulating unit utilizes in the process of printer power supply signal charging as of the present invention, when consumable chip of printer receives the non-power supply signal from printer, the first electricity accumulating unit is carried out to formal charging operations.
Fully coordinated printer in the method for supplying power to of this consumable chip of printer for the relation between electric resources and a plurality of consumable chip of printer electricity consumption.Only access a print cartridge while working on printer, therefore in the same time, only with a consumable chip, set up and contact.Formal charging operations is to carry out on the basis based on the printer browsing consumable chip, now the memory on consumable chip of printer need to carry out exchanges data and renewal, the consumable chip of printer normal operation, need to will carry out write back operations in the data write non-volatile memory.Because the charging current of precharge operation is less than the charging current of formal charging operations, now, be not performed the consumable chip of access in holding state, only carry out the charging operations of precharge operation and the second electricity accumulating unit, power consumption is low.Printer is limited for electric energy, after carrying out precharge operation and formal charging operations, can, by limited power delivery on the consumable chip of working, make the consumable chip service behaviour more stable.
At printer, for electric energy, very have in limited time, be the shorter or driving force of printer power-up period very hour, in order to guarantee that the second electricity accumulating unit can be full of electricity in time fast, can get rid of precharge operation, only when the non-power supply signal received at chip from printer, the first electricity accumulating unit is carried out to formal charging operations, so just guaranteed greatly the service behaviour of the second electricity accumulating unit.
As of the present invention preferred, obtain printer by the detection of the power down timing to the printer power supply signal and stop power supply the time when printer is stopped power supply; What at printer, when the time of stopping power supply is less than default limiting time, restore electricity continues as consumable chip of printer and the power supply of the second electricity accumulating unit; Calling the first electricity accumulating unit when the printer time of stopping power supply is more than or equal to default limiting time is the consumable chip of printer power supply.
As of the present invention preferably, describedly call the first electricity accumulating unit and the second electricity accumulating unit is the consumable chip of printer power supply when the printer time of stopping power supply is more than or equal to default limiting time.
The present invention adopts technique scheme: the present invention adopts the technical scheme of two storage function power supplies, effectively promoted the ability that the chip that uses the method adapts to intermittence powered operation environment, the chip electricity consumption relies on the printer power supply fully, when installing and using, the print cartridge/cartridge of any this chip of outfit can guarantee that this consumable chip of printer can work, thereby avoid affecting service behaviour by the chip electrical problem, greatly improved the job stability of this consumable chip of printer; The consumable chip of printer electricity consumption is only relevant with printer, as long as printer power supply communication, chip just can maintain normal operating conditions, so just greatly guarantees that the quality of each batch products is identical; This technical scheme also avoids using battery, thereby has strengthened the environmental protection character of this product, for product marketing has played effect.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the affected step of the present invention is illustrated.
The structural representation that Fig. 1 is print cartridge in prior art;
The structural representation that Fig. 2 is cartridge in prior art;
The structural representation that Fig. 3 is consumable chip of printer in prior art;
Fig. 4 is the schematic block circuit diagram that in prior art, battery is combined with the electronic module of consumable chip of printer;
The signal of communication figure that Fig. 5 is printer in prior art;
The flow chart of method of supplying power to the first embodiment that Fig. 6 is a kind of consumable chip of printer of the present invention;
The flow chart of method of supplying power to the second embodiment that Fig. 7 is a kind of consumable chip of printer of the present invention;
The flow chart of the 11 kind of embodiment of method of supplying power to that Fig. 8 is a kind of consumable chip of printer of the present invention;
The flow chart of the 12 kind of embodiment of method of supplying power to that Fig. 9 is a kind of consumable chip of printer of the present invention.
Embodiment
The first embodiment of the present invention.Black print cartridge, red print cartridge, yellow print cartridge and blue print cartridge are installed on printer, and each print cartridge is provided with consumable chip of printer, and each consumable chip of printer pairing has two electricity accumulating units, i.e. the first electricity accumulating unit and the second electricity accumulating unit; They are all electric capacity, and the capacitance of storage of the first electricity accumulating unit is greater than the capacitance of storage of the second electricity accumulating unit.After print cartridge is installed, the contact probe on printer is connected with the contact on consumable chip of printer.During work, printer carries out communication by mode and each print cartridge of access one by one, is that all print cartridges are connected as the power supply signal VDD driven simultaneously.The non-power supply signal sent when printer is worked has comprised communication enabled signal CE, clock signal clk, data-signal DATA, address signal ID.As shown in Figure 5, relation between power supply signal VDD and non-power supply signal, after power supply signal VDD produces, non-power supply signal is that communication enabled signal CE, clock signal clk, data-signal DATA, address signal ID just produce, and when power supply signal VDD finishes, non-power supply signal communication enabled signal CE, clock signal clk, data-signal DATA, address signal ID also stop.
When printer and one of them print cartridge carry out communication, printer is powered to this print cartridge, sends power supply signal VDD and non-power supply signal.Because having precedence over non-power supply signal, power supply signal VDD produces, so the incipient stage only has power supply signal VDD.Now utilizing power supply signal VDD is that the first electricity accumulating unit is carried out precharge operation, and charging current is less; Simultaneously, power supply signal VDD is also that the second electricity accumulating unit is carried out charging operations.When power supply signal VDD charges for electricity accumulating unit also the electronic module for consumable chip of printer power supply directly is provided, electronic module has comprised control circuit, memory circuit, interface circuit, includes volatile memory and nonvolatile memory in memory circuit.
When non-power supply signal produces, consumable chip of printer response address signal ID, if consumable chip of printer is accessed and is set up and contact with printer by printer; Communication enabled signal CE makes this consumable chip of printer set up and communicate by letter with printer, in communication process, this consumable chip of printer can send to printer by the various information of storage, China ink amount information after printer upgrades also can be delivered in consumable chip of printer, and now consumable chip of printer is in running order.As shown in Figure 6, when non-power supply signal produces, utilize power supply signal VDD to carry out formal charging operations to the first electricity accumulating unit.Precharge operation is still being carried out, now with formal charging operations and deposit; Compare precharge operation, the electric current of formal charging operations is larger.When carrying out formal charging operations, the second electricity accumulating unit is still utilizing power supply signal VDD charging; When non-power supply signal produces, also utilizing communication enabled signal CE is that the first electricity accumulating unit carries out the auxiliary charging operation.Due to the driving force of the communication enabled signal CE driving force not as good as power supply signal VDD, while therefore utilizing communication enabled signal CE charging, can only play complementary effect.
Charge normal in process, the second electricity accumulating unit charges, and required time is less than the first electricity accumulating unit charging required time and the second electricity accumulating unit charging required time is extremely short.
Printer does not have power supply signal VDD and non-power supply signal while stopping print cartridge being powered, the second electricity accumulating unit electric discharge provides power supply for electronic module.Because the second electricity accumulating unit electric weight is limited, can only temporarily power, enabling the first electricity accumulating unit when the printer time of stopping power supply is more than or equal to default limiting time is the electronic module power supply, default limiting time is less than the second electricity accumulating unit power-on time.The time that printer is stopped power supply is detected and obtains by the power down timing to printer power supply signal VDD, and the trailing edge that the power down timing detects at power supply signal VDD starts, and the timing upper limit equals default limiting time.Printer in the timing upper limit that the power down timing detects, when the second electricity accumulating unit still can provide power supply, provide the power supply signal VDD that utilizes printer of power supply continue as the first electricity accumulating unit pre-charged, also be the second electricity accumulating unit charging; When this consumable chip of printer is accessed by printer, again utilize non-power supply signal to carry out complementary charging, and utilize power supply signal VDD to carry out formal charging operations to the first electricity accumulating unit.
The capacity of the first electricity accumulating unit and the second electricity accumulating unit is different, and when enabling the second electricity accumulating unit, electric energy is only for the data in the volatile memory that keeps memory circuit; When enabling the first electricity accumulating unit, electric energy is for the operation in the data write non-volatile memory in the memory circuit volatile memory.Two electricity accumulating unit designs that capacitance of storage is different, make consumable chip of printer can be applicable to the environment for use that intermittence is stopped power supply.
Can provide power supply signal VDD for all print cartridges switch on power after printer powers on simultaneously, make the first electricity accumulating unit of the consumable chip of printer on each print cartridge to carry out pre-charged, first with less electric current, give the first electricity accumulating unit charging separately.There is precharge operation to play to shorten the effect in the charging interval of the first electricity accumulating unit, can also make up the first electricity accumulating unit and be full of the electric weight run off because of electric leakage after electricity.The second electricity accumulating unit is also directly to utilize power supply signal VDD charging, so, when the first electricity accumulating unit of the consumable chip of printer on each print cartridge carries out precharge operation, the second electricity accumulating unit is also being charged.
The second embodiment of the present invention, as shown in Figure 7, be that with the difference of the first embodiment the second embodiment has cancelled precharge operation, when printer only provides power supply signal VDD, only has the second electricity accumulating unit to carry out charging.
Black print cartridge, red print cartridge, yellow print cartridge and blue print cartridge are installed on printer, and each print cartridge is provided with consumable chip of printer, and each consumable chip of printer pairing has two electricity accumulating units, i.e. the first electricity accumulating unit and the second electricity accumulating unit; They are all electric capacity, and the capacitance of storage of the first electricity accumulating unit is greater than the capacitance of storage of the second electricity accumulating unit.After print cartridge is installed, the contact probe on printer is connected with the contact on consumable chip of printer.During work, printer carries out communication by mode and each print cartridge of access one by one, is that all print cartridges are connected as the power supply signal VDD driven simultaneously.The non-power supply signal sent when printer is worked has comprised communication enabled signal CE, clock signal clk, data-signal DATA, address signal ID.As shown in Figure 5, relation between power supply signal VDD and non-power supply signal, after power supply signal VDD produces, non-power supply signal is that communication enabled signal CE, clock signal clk, data-signal DATA, address signal ID just produce, and when power supply signal VDD finishes, non-power supply signal communication enabled signal CE, clock signal clk, data-signal DATA, address signal ID also stop.
When printer and one of them print cartridge carry out communication, printer is powered to this print cartridge, sends power supply signal VDD and non-power supply signal.Because having precedence over non-power supply signal, power supply signal VDD produces, so the incipient stage only has power supply signal VDD.Now utilizing power supply signal VDD is that the second electricity accumulating unit is carried out charging operations.When power supply signal VDD charges for electricity accumulating unit also the electronic module for consumable chip of printer power supply directly is provided, electronic module has comprised control circuit, memory circuit, interface circuit etc., includes volatile memory and nonvolatile memory in memory circuit.
When non-power supply signal produces, consumable chip of printer response address signal ID, if consumable chip of printer is accessed and is set up and contact with printer by printer; Communication enabled signal CE makes this consumable chip of printer set up and communicate by letter with printer, in communication process, this consumable chip of printer can send to printer by the various information of storage, China ink amount information after printer upgrades also can be delivered in consumable chip of printer, and now consumable chip of printer is in running order.When non-power supply signal produces, utilize power supply signal VDD to carry out formal charging operations to the first electricity accumulating unit.When carrying out formal charging operations, the second electricity accumulating unit is still utilizing power supply signal VDD charging; When non-power supply signal produces, also utilizing communication enabled signal CE is that the first electricity accumulating unit carries out the auxiliary charging operation.The electric current of formal charging operations is larger than the electric current of auxiliary charging operation.Due to the driving force of the communication enabled signal CE driving force not as good as power supply signal VDD, while therefore utilizing communication enabled signal CE charging, can only play complementary effect.
Charge normal in process, the second electricity accumulating unit charges, and required time is less than the first electricity accumulating unit charging required time and the second electricity accumulating unit charging required time is extremely short.
Printer does not have power supply signal VDD and non-power supply signal while stopping print cartridge being powered, the second electricity accumulating unit electric discharge provides power supply for electronic module.Because the second electricity accumulating unit electric weight is limited, can only temporarily power, enabling the first electricity accumulating unit when the printer time of stopping power supply is more than or equal to default limiting time is the electronic module power supply, default limiting time is less than the second electricity accumulating unit power-on time.The time that printer is stopped power supply is detected and obtains by the power down timing to printer power supply signal VDD, and the trailing edge that the power down timing detects at power supply signal VDD starts, and the timing upper limit equals default limiting time.In the timing upper limit that printer detects in the power down timing, when still providing power supply, the second electricity accumulating unit provide the power supply signal VDD that utilizes printer of power supply to continue as the second electricity accumulating unit charging, when this consumable chip of printer is accessed by printer, again utilize non-power supply signal to carry out complementary charging, and utilize power supply signal VDD to carry out formal charging operations to the first electricity accumulating unit.
The capacity of the first electricity accumulating unit and the second electricity accumulating unit is different, and when enabling the second electricity accumulating unit, electric energy is only for the data in the volatile memory that keeps memory circuit; When enabling the first electricity accumulating unit, electric energy is for the operation in the data write non-volatile memory in the memory circuit volatile memory.Two electricity accumulating unit designs that capacitance of storage is different, can be applicable to the environment for use that intermittence is stopped power supply.
In sum, in this embodiment, printer is when only providing power supply signal VDD, the first electricity accumulating unit does not have precharge operation, only have the second electricity accumulating unit to carry out charging operations, therefore power supply signal VDD gets a promotion for the actuating force of the second electricity accumulating unit, make the second electricity accumulating unit more easily be full of, fully guaranteed the service behaviour of the second electricity accumulating unit.
Utilizing this non-power supply signal when the non-power supply signal of printer is arranged is that the first electricity accumulating unit is carried out in the process of auxiliary charging operation except can using communication enabled signal CE, can also use clock signal clk, data-signal DATA, address signal ID.Although the driving force of clock signal clk, data-signal DATA, address signal ID and other non-power supply signal is not strong, but being enough to provides extra electric energy for the first electricity accumulating unit, play the purpose of auxiliary charging, to improve the charge efficiency of the first electricity accumulating unit.
The third embodiment of the present invention, it is the first electricity accumulating unit auxiliary charging that the difference of this embodiment and the first embodiment is to adopt clock signal clk.
The 4th kind of embodiment of the present invention, it is the first electricity accumulating unit auxiliary charging that the difference of this embodiment and the first embodiment is to adopt data-signal DATA.
The 5th kind of embodiment of the present invention, it is the first electricity accumulating unit auxiliary charging that the difference of this embodiment and the first embodiment is to adopt address signal ID.
The 6th kind of embodiment of the present invention, it is the first electricity accumulating unit auxiliary charging that the difference of this embodiment and the second embodiment is to adopt clock signal clk.
The 7th kind of embodiment of the present invention, it is the first electricity accumulating unit auxiliary charging that the difference of this embodiment and the second embodiment is to adopt data-signal DATA.
The 8th kind of embodiment of the present invention, it is the first electricity accumulating unit auxiliary charging that the difference of this embodiment and the second embodiment is to adopt address signal ID.
The 9th kind of embodiment of the present invention, in this embodiment, method of supplying power to of the present invention is used on the printer that only has a cartridge, cartridge is provided with and has matched the consumable chip of printer of the first electricity accumulating unit and the second electricity accumulating unit, the first electricity accumulating unit and the second electricity accumulating unit are all electric capacity, and the capacitance of storage of the first electricity accumulating unit is greater than the capacitance of storage of the second electricity accumulating unit.Contact after the cartridge installation on consumable chip of printer and the contact probe of printer connect one to one.During work, printer and cartridge carry out communication, for the consumable chip of printer on cartridge provides power supply signal VDD and non-power supply signal.Utilizing power supply signal VDD is directly the precharge operation that the first electricity accumulating unit carries out little electric current; Simultaneously, be that the second electricity accumulating unit is carried out charging operations.When non-power supply signal produces, consumable chip of printer response address signal ID, if consumable chip of printer is accessed and is set up and contact with printer by printer; Communication enabled signal CE makes this consumable chip of printer set up and communicate by letter with printer, makes consumable chip of printer in running order.When non-power supply signal produces, utilize power supply signal VDD to carry out formal charging operations to the first electricity accumulating unit, now precharge operation is still being carried out, and it is with formal charging operations and deposit; The second electricity accumulating unit is still utilizing power supply signal VDD charging simultaneously; Also utilizing communication enabled signal CE is that the first electricity accumulating unit carries out the auxiliary charging operation.
The discharge process of the first electricity accumulating unit and the second electricity accumulating unit is in the situation that printer is stopped power supply occurs, and now printer does not provide power supply signal VDD and non-power supply signal.Once printer is stopped power supply, the electronic module that the second electricity accumulating unit electric discharge is consumable chip of printer provides power supply; Enabling the first electricity accumulating unit when the printer time of stopping power supply is more than or equal to default limiting time is the electronic module power supply, and default limiting time is less than the second electricity accumulating unit power-on time.
The time that printer is stopped power supply is detected and obtains by the power down timing to printer power supply signal VDD, and the trailing edge that the power down timing detects at power supply signal VDD starts, and the timing upper limit equals default limiting time.Printer in the timing upper limit that the power down timing detects, when the second electricity accumulating unit still can provide power supply, provide the power supply signal VDD that utilizes printer of power supply continue as the first electricity accumulating unit pre-charged, also be the second electricity accumulating unit charging; When this consumable chip of printer is accessed by printer, again utilize non-power supply signal to carry out complementary charging, and utilize power supply signal VDD to carry out formal charging operations to the first electricity accumulating unit.Because being is the one single chip power supply, power supply signal VDD has enough driving forces, can guarantee that the first electricity accumulating unit and the second electricity accumulating unit complete charging operations at the utmost point that is less than single power-up period in the short time fully.Therefore, the present invention on cartridge, implement after result of use very obvious.
While enabling the second electricity accumulating unit, electric energy is only for the data in the volatile memory that keeps consumable chip of printer; When enabling the first electricity accumulating unit, electric energy is for the operation in the data write non-volatile memory in the volatile memory of consumable chip of printer.
Carry out the effect that precharge operation can play the charging interval that shortens the first electricity accumulating unit, can also make up the electric weight that the first electricity accumulating unit runs off because of electric leakage.The second electricity accumulating unit is also directly to utilize power supply signal VDD charging, so, when the first electricity accumulating unit carries out precharge operation, the second electricity accumulating unit is also being charged.
The tenth kind of embodiment of the present invention, the difference of this embodiment and the 9th kind of embodiment with cancelled precharge operation, when printer only provides power supply signal VDD, only have the second electricity accumulating unit to carry out charging.
In above-mentioned arbitrary embodiment, the electric energy of the first electricity accumulating unit storage is all for the operation in the data write non-volatile memory in the electronic module volatile memory, and the second electricity accumulating unit is all for keeping the data in volatile memory.Owing to keeping the required electric current of data in volatile memory at one below microampere, so the second electricity accumulating unit power consumption when power supply is few.In order to take full advantage of the electric energy of the second electricity accumulating unit, can when the first electricity accumulating unit is the electronic module power supply, the second electricity accumulating unit dump energy be offered to electronic module.
The 11 kind of embodiment of the present invention, as shown in Figure 8, the difference of this embodiment and the first embodiment is, enabling the first electricity accumulating unit and the second electricity accumulating unit when the printer time of stopping power supply is more than or equal to default limiting time is the electronic module power supply.
The 12 kind of embodiment of the present invention, as shown in Figure 9, the difference of this embodiment and the second embodiment is, enabling the first electricity accumulating unit and the second electricity accumulating unit when the printer time of stopping power supply is more than or equal to default limiting time is the electronic module power supply.
After the method for supplying power to of consumable chip of printer of the present invention is implemented, can avoid the various drawbacks that battery-powered method is existed.Make consumable chip of printer more flexible in use procedure, be not subject to the impact of powerup issue.

Claims (5)

1. the method for supplying power to of a consumable chip of printer, it is characterized in that: this method of supplying power to comprise have by charging realize function of supplying power the first electricity accumulating unit and the second electricity accumulating unit, described the first electricity accumulating unit and the second electricity accumulating unit are all electric capacity, and the capacitance of storage of described the first electricity accumulating unit is greater than the capacitance of storage of the second electricity accumulating unit;
The first step, during the printer power supply, utilize the printer power supply signal to be respectively the first electricity accumulating unit and the charging of the second electricity accumulating unit, in charging, also for consumable chip of printer, directly provides power supply;
Second step, during the printer power supply, utilizing this non-power supply signal when the non-power supply signal of printer is arranged is that the first electricity accumulating unit is carried out the auxiliary charging operation;
The 3rd step, when printer is stopped power supply, keep the data in volatile memory by calling the second electricity accumulating unit for consumable chip of printer provides power supply;
The 4th step, when the printer time of stopping power supply is more than or equal to default limiting time, for providing power supply, consumable chip of printer carries out the operation in the data write non-volatile memory in volatile memory by calling the first electricity accumulating unit, when described default limiting time is less than the second electricity accumulating unit power-on time.
2. method of supplying power to according to claim 1 is characterized in that: described the first electricity accumulating unit utilizes in the process of printer power supply signal charging when the printer power supply starts just to the first electricity accumulating unit execution precharge operation.
3. according to the described method of supplying power to of claim 1 or 2, it is characterized in that: described the first electricity accumulating unit utilizes in the process of printer power supply signal charging, when consumable chip of printer receives the non-power supply signal from printer, the first electricity accumulating unit is carried out to formal charging operations.
4. method of supplying power to according to claim 1 is characterized in that: when printer is stopped power supply, by the power down timing to the printer power supply signal, detect and obtain printer and stop power supply the time; What at printer, when the time of stopping power supply is less than default limiting time, restore electricity continues as consumable chip of printer and the power supply of the second electricity accumulating unit; Calling the first electricity accumulating unit when the printer time of stopping power supply is more than or equal to default limiting time is the consumable chip of printer power supply.
5. according to the described method of supplying power to of claim 1 or 4, it is characterized in that: describedly call the first electricity accumulating unit and the second electricity accumulating unit is the consumable chip of printer power supply when the printer time of stopping power supply is more than or equal to default limiting time.
CN2012101649975A 2012-05-25 2012-05-25 Power supply method of printer consumable chip Pending CN103427448A (en)

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CN107399173A (en) * 2016-05-18 2017-11-28 佳能株式会社 Printing device and its control method
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Application publication date: 20131204