CN102873986A - Method for preventing chip data from leaking - Google Patents
Method for preventing chip data from leaking Download PDFInfo
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- CN102873986A CN102873986A CN2011101979646A CN201110197964A CN102873986A CN 102873986 A CN102873986 A CN 102873986A CN 2011101979646 A CN2011101979646 A CN 2011101979646A CN 201110197964 A CN201110197964 A CN 201110197964A CN 102873986 A CN102873986 A CN 102873986A
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Abstract
The invention provides a method for preventing chip data from leaking. A chip is mounted on a consumable container, and comprises a memory unit, a control unit and an interface unit, wherein the memory unit comprises a variable data memory area and an initial data memory area; and when a data clean-up module arranged in a printer detects that consumable allowance in the consumable container is used up in the printer or a user selects to execute the clean-up operation, data in the chip memory unit is cleaned up partially or fully, and the partial clean-up operation is that unified data, data arranged in sequence or data arranged in inverted sequence is written in the variable data area of the chip memory unit, and the full clean-up operation is that unified data, data arranged in sequence or data arranged in inverted sequence is written in all areas of the chip memory unit. The method can reduce the chip manufacturing cost effectively, is convenient to operate, and prevents data from leaking effectively after the chip is discarded.
Description
Technical field
The present invention relates to a kind of method that prevents that chip data from revealing, specifically, relate to a kind of preventing and abandon the method that institute causes the data leakage in its ancillary chip because of consumable container.
Background technology
At present, printer is widely used in each office space and the family, two kinds of printers commonly used are ink-jet printer and laser printer, ink-jet printer uses the print cartridge that accommodates ink to provide the ink of printing usefulness as consumable container to printer, to form literal or the pattern that needs printing at paper; Laser printer then uses the cartridge that accommodates carbon dust to provide the carbon dust of printing usefulness as consumable container to printer, to form literal or the pattern that needs printing at medium.
Fig. 1 is the structural representation of existing print cartridge, it comprises housing 11, housing 11 surrounds cavity 15, accommodate ink in the cavity, the housing below is provided with ink outlet port 14, can provide ink to ink-jet printer by ink outlet port 14, an outer wall at housing 11 is equipped with chip 13, the structure of chip 13 as shown in Figure 2, it has a pcb board 16, at pcb board 16 electronic module 17 is installed, include the communication unit and the integrated circuit part that receive printer signal and electric energy in the electronic module 17, has a memory in the integrated circuit part, this memory is generally nonvolatile memory, wherein store the data that produce in the data relevant with print cartridge and the print procedure, the data relevant with print cartridge comprise: print cartridge producer code, the print cartridge date of manufacture, the print cartridge model, characterisitic parameter, the interior ink surplus of print cartridge etc., the data that produce in the print procedure comprise: consumed number of print pages, the initial print time of print cartridge, upper one prints the operating time etc.
Fig. 3 is the structural representation of existing cartridge, it comprises housing 21, it is not shown that housing 21 surrounds a cavity 25(), in cavity 25, accommodate the carbon dust as consumptive material, one end of cartridge is provided with meal outlet 24, carbon dust in the cartridge can be delivered to laser printer by meal outlet 24, and a chip mount pad 22 is arranged on the outer wall of housing 21, and chip 23 is installed on the chip mount pad 22.The structure similar of the structure of chip 23 and above-mentioned ink box chip 13, has too a memory in its integrated circuit part, this memory is generally nonvolatile memory, wherein store the data that produce in the data relevant with cartridge and the print procedure, the data relevant with cartridge comprise: cartridge producer code, cartridge date of manufacture, cartridge model, characterisitic parameter, the interior carbon dust surplus of cartridge etc., the data that produce in the print procedure comprise: the initial print time, upper one that has consumed number of print pages, cartridge is printed the operating time etc.
Ink-jet printer or laser printer tend to the data content that needs are printed is stored in the memory of print cartridge or carbon powder box chip in the process that prints; Although some printer can directly not record printed document to the operation of chip memory; yet make mistakes in printer operation, misprint or printer by situations such as virus attacks under, printer also can occur often store the content false of mimeograph documents in the chip memory situation.After the consumptive material in above-mentioned print cartridge or the cartridge is finished using, the user mostly together abandons ink box chip 13 or carbon powder box chip 23 or transfers to print cartridge or cartridge and reclaims producer and reclaim, usually the data of storing in the chip are not eliminated before this, wherein the data of storage are easy to reveal, in case the data in the chip are read by other people, cause the leakage of personal data, may bring harm to the end user.
Publication No. is that the Chinese invention patent application " removing method of consumable chip and data thereof, consumable container " of 101954797A discloses a kind of method of eliminating data in the chip memory, it mainly is by the life-span judge module is set in chip, when the life-span judge module was judged the chip end of life, the chip prompting user was eliminated chip data.Although the method can be eliminated the data content in the chip, yet, the life-span judge module must be set in chip, only have and judge that the chip end-of-life is that consumptive material is used up and just can be carried out data and eliminate, not only cause the chip production complex process, cost increases, and, because the consumable items allowance that chip memory measures might not be accurate consumption, usually with actual consumable items allowance very large deviation is arranged, sometimes chip is judged end-of-life, and actual consumable items allowance can also carry out a certain amount of printing, this moment, the user eliminated the data of chip, certainly will cause the waste of consumptive material, printer medium print turn white in perhaps during the consumable container accidental damage, chip is not judged end-of-life yet, and the elimination that causes the user not carry out chip data just abandons consumable container; Therefore, the scheme that provides of 101954797A still fails effectively to solve the problem that chip data is revealed; And, the method that this scheme is carried out the data elimination is by consumable chip is taken off from consumable container, use physical means that the structure of consumable chip is destroyed, perhaps the data cancellation module need to be set additionally in chip, this makes troubles all for user's operation; In addition, because every chip block all will additionally arrange the data cancellation module, the cost of chip is significantly improved.
Summary of the invention
Main purpose of the present invention provides a kind ofly can effectively reduce the chip manufacturing cost, operation prevents the method that chip data is revealed easily, to remedy above-mentioned the deficiencies in the prior art.
For achieving the above object, the invention provides in the method that prevents the chip data leakage, this chip is to be installed on the consumable container, chip comprises memory cell, control module and interface unit, comprise variable data memory block and primary data memory block in the memory cell, be arranged at data dump module in the printer when meeting the cleared condition of setting, the data of chip-stored unit are carried out clear operation.
By upper scheme as seen, method provided by the present invention is chip data to be set remove module in printer, utilize the intrinsic control method of printer, can realize being installed in calling of all chip data clear operation methods on this printer, as long as meeting cleared condition then removes the data of chip-stored unit, with respect to the method that life-span judge module and data dump module are set in chip in the prior art, can directly effectively realize the operation of chip data, and, do not need chip taken out from printer and carry out structural deterioration, made things convenient for user's operation, adopt method of the present invention, owing to need in every chip block, not write life-span judge module and data dump module, greatly reduce the complexity of chip production technique, saved the chip production cost.
Its further scheme is, clear operation is the part clear operation, and it is the data that write uniform data, the data of arranging in order or arrange by backward in the variable date area of chip-stored unit.
Printer is in course of normal operation, if keep normal operating or normal operating condition, only have generally speaking variable data to change, remainder data remains unchanged substantially, by in the variable data zone, writing the data of certain rule, such as data arranged sequentially, backward array data or uniform data, can make things convenient for the user to realize rapidly the removing of chip data, guarantee that the chip variable data is not revealed.
Its further scheme be that clear operation is whole clear operations, is the data that write unified data, the data of arranging in order or arrange by backward in the All Ranges of chip-stored unit.
Printer is in print procedure, because maloperation, error in operation or other various reasons, cause primary data and the variable data etc. of chip in the printer print procedure all may change, by data in the chip-stored unit being write the data of certain rule, can guarantee that all data in the chip-stored unit all are eliminated, operation is convenient simultaneously, relate to the user of security work for some especially, need to be with the variable data in the chip-stored unit, all deletions such as primary data and reserve area storage data, adopt this programme then to can be good at guaranteeing the security of chip, be convenient to the user and as required data content removed.
Its further scheme be that cleared condition comprises in the printer result who judges that consumable items allowance exhausts in the consumable container.
Printer is in print procedure, can detect in real time the surplus of consumptive material in the consumable container, the judged result of utilizing printer that consumable items allowance is exhausted is used as carrying out the condition that chip data is removed, can accurately come executable operations according to consumable items allowance, avoid detecting the improper maloperation that causes owing to chip is interior for consumable items allowance in the prior art, effectively realize the elimination of chip data.
Its further scheme be that cleared condition comprises that user selection carries out the clear operation of chip data.
Because printer various abnormal conditions may occur in print procedure, as: consumable container is damaged or prints and change consumable container etc. midway, when above-mentioned abnormal conditions occur, often consumable quantity does not run out of yet, the user can adopt the method for direct selection executing data clear operation, conveniently, directly realizes the removing of data in the chip memory.
Description of drawings
Fig. 1 is the structural representation of existing print cartridge.
Fig. 2 is the structural representation of existing chip.
Fig. 3 is the structural representation of existing cartridge.
Fig. 4 is the schematic diagram of storage data in the present invention's the chip-stored unit.
Fig. 5 is the FB(flow block) of the present invention's embodiment one.
Fig. 6 is the FB(flow block) of the present invention's embodiment two.
Fig. 7 is the schematic diagram after partial data is removed in the present invention's the chip-stored unit.
Fig. 8 is the schematic diagram after total data is removed in the present invention's the chip-stored unit.
Fig. 9 is the method flow diagram of the present invention's conversion embodiment.
Below in conjunction with drawings and Examples the present invention is further described.
The specific embodiment
Embodiment one
Carbon powder box chip on the printer, comprise memory cell, control module and interface unit, comprise variable data memory block and primary data memory block in this chip-stored unit, Fig. 4 is the schematic diagram of the data of storing in this chip-stored unit, is divided into variable date area, primary data district in the chip-stored unit and keeps the data field.Primary data district storing initial data comprise the information such as sequence number, cartridge model, page or leaf output, producer's code.Variable date area storage variable data comprises the continuous data such as number of print pages, carbon dust surplus percentage.Keep other data that data field storage producer keeps, keep data and carry out the required data of other processing for the designer keeps to preserve, as seen from Figure 4, address 0X05 ~ 0X0B is the primary data district, the data in this primary data district are not in most cases can changing of printing, address OX04,0X0C ~ 0X13 is variable date area, the data of this variable date area can change to some extent along with the consumptive material consumption in the print procedure, address 0X14 ~ 0XFF keeps the data field, these district's data are not used in this example, chip data is removed module and is arranged in the printed driver, the method that present embodiment adopts is: chip data is removed module and is carried out the operation that data division is removed in the chip-stored unit according to the judged result that in the printer carbon dust surplus is exhausted, and concrete operation step is referring to Fig. 5 and be described as follows:
S11: beginning; Printer powers on or the discarded beginning that operates of a new round;
S12: printer detects the carbon dust surplus; This operation detects to realize by the original toner detection device of printer.
S13: judge whether carbon dust runs out of, if run out of, then enter step s14, otherwise, return step s12 and continue to detect;
S14: prompting user will carry out the waste treatment of cartridge;
S15: judge whether the user carries out the discarded operation of chip (cartridge), if user selection be, namely discard operation, then enter step s16, otherwise, return step s15 and continue to wait for;
S16: waste treatment consequence prompting; This step is mainly used in reminding user will cause that to the discarded operation of cartridge this cartridge that goes out of use can't continue to use, and the cartridge that need more renew could continue use;
S17: whether printer proceeds discarded operation by the guidance panel prompting user, if user selection be, can determine that then the user confirms that the waste carbon powder box processes, be not maloperation, enter step s19, if user selection is no, then enter step s18;
S18: after waiting for that printer has been printed extra number of pages n page or leaf, enter step s14; This step is whether will carry out waste treatment to cartridge in order to prompting user; Under many circumstances, although printer detects carbon dust and uses, but because a small amount of remnants in powder storehouse in the cartridge, printer still can continue to print a small amount of sample manuscript, such as discarded waste and the contaminated environment of then will causing this moment, therefore can allow the user to use the n page or leaf, reminding user is done waste treatment again, after soon the carbon dust in the powder storehouse all exhausted, the user will select discarded operation naturally;
S19: printer is the discarded data of safety with the Data Update in the carbon powder box chip memory cell; Namely being to write uniform data or data arranged sequentially or backward array data in the variable date area of chip-stored unit, is to write 0X00 to variable date area in this example, referring to shown in Figure 7;
S110: finish; Finish the discarded operation of epicycle.
Embodiment two
The structure of present embodiment chips is identical with embodiment one, the method that prevents this chip data leakage is also similar, difference is that present embodiment is to carry out the discarded operation of chip by user's selection, the chip data that namely is arranged in the printed driver is removed module when user selection is carried out discarded operation, to the data operating part clear operation in the chip-stored unit, concrete steps are referring to Fig. 6 and be described as follows:
S21: beginning; Printer powers on or the discarded beginning that operates of a new round;
S22: printer detects the user and whether selects to carry out the discarded operation of chip, if select to carry out discarded operation, then enters step s23, continues among this step s22 to detect otherwise rest on; To the discarded operation of cartridge, namely be the discarded operation to chip, the user can be undertaken by the printer panel, and is both simple and direct, convenient, easy to implement again;
S23: waste treatment consequence prompting; This step is mainly used in reminding user: cartridge is discarded operation will cause that this cartridge that goes out of use can't continue to use, the cartridge that need more renew could continue to use;
S24: whether printer continues discarded operation by the printing machine operation face plate prompting user, if user selection be, can determine that then the user confirms that the waste carbon powder box processes, be not maloperation, then enter step s25; If user selection is no, then get back to the next time discarded operation that step s22 waits for the user;
S25: printer is the discarded data of safety with the Data Update in the carbon powder box chip memory cell; Namely being to write uniform data or data arranged sequentially or backward array data in the variable date area of chip-stored unit, is to write 0X00 to variable date area in this example, referring to shown in Figure 7; The data that write are without any information, and are safe and reliable, so chip abandons with cartridge, can not cause the wherein leakage of information;
S26: finish; EO should be discarded, the discarded operation of a new round can be carried out from s21.
The various embodiments described above are that the variable date area content in the chip-stored unit is removed, a kind of conversion as various embodiments of the present invention, chip data is removed module, and performed clear operation can also be that the content of all data fields in the chip-stored unit is removed to the chip-stored location contents, namely be that the data that uniform data or data arranged sequentially or backward are arranged are write variable date area, primary data district and keep the data field, all the other methods and process are all constant, and this conversion equally also can realize purpose of the present invention; Then be that data 00 are write described in embodiment one or the embodiment two the memory cell schematic diagram behind all districts in the chip-stored unit such as Fig. 8; Also can be to possess simultaneously the function that part is removed and all removed, carry out clear operation according to user selection in the use procedure, when selection portion is divided removing chip-stored unit variable date area is removed, when selecting all to remove all data fields, chip-stored unit are removed.
Another conversion as various embodiments of the present invention, in the method that chip data is removed, can also comprise: the operation that user selection recovers chip data, printer storage chip data and recovers chip data, to prevent that the user is owing to the data in the chip have been deleted in maloperation, referring to Fig. 9, its concrete steps are as follows:
S31: beginning; Printer powers on or the discarded beginning that operates of a new round;
S32: printer detects the user and whether selects to carry out the discarded operation of chip, if select to carry out discarded operation, then enters step s35, otherwise enters step s33;
S33: check that the user does the chip data recovery operation? if so, then enter step s34, otherwise return step s32; This step is when the user confirms not need to discard operation, and whether inquiry needs the data that mistake is removed are recovered;
S34: the chip data of printer storage is copied in the chip memory, and return step s32; When user selection recovers data, the chip data in the printer storage is copied back in the chip memory, then return step s32 and continue to detect whether discard operation.
S35: waste treatment consequence prompting; This step is mainly used in reminding user: cartridge is discarded operation will cause that this cartridge that goes out of use can't continue to use, the cartridge that need more renew could continue to use;
S36: whether printer continues discarded operation by the printing machine operation face plate prompting user, if user selection be, can determine that then the user confirms that the waste carbon powder box processes, be not maloperation, then enter step s37; If user selection is no, then get back to the next time discarded operation that step s32 waits for the user;
S37: printer with the chip memory data copy to printer storage; This preservation operation can be backed up the data mode before discarding, and can prevent that the chip data that user misoperation causes from losing.
S38: printer is the discarded data of safety with the Data Update in the carbon powder box chip memory cell;
S39: finish; EO should be discarded, the discarded operation of a new round can be carried out from s31.
Another conversion as various embodiments of the present invention, when adopting chip removing module that chip content is removed, can also in memory cell, " discarded mark " be set a certain position, as selecting the 4th byte conduct " discarded mark " of 0X13 address, as shown in Figure 8, the value of 0X13 address is not 0X00 when chip content carries out waste treatment, and the value of 0X13 address is 0X01 when chip content carries out waste treatment; And, can be tactic data according to certain rules to the data that write in the chip-stored unit, as: 0X00,0X01,0X02 ... 0XFF, also can be the data of according to certain rules backward arrangement, as: 0XFF, 0XFE ... 0X00, can also be unified data, such as any one value among 0X01 ~ 0XFF, can certainly be according to user's use habit or the inner data of arranging according to certain rules that arrange, as: 0X00,0X03,0X06 ... 0XFF all can realize purpose of the present invention with up conversion.
Another conversion as various embodiments of the present invention, can also carry out chip data in conjunction with the testing result that user selection and cartridge surplus exhaust removes, namely in conjunction with the embodiments one and embodiment two in method, when detecting the carbon dust surplus and exhaust or user selection when carrying out waste treatment, all can carry out the chip waste treatment by prompting user; Or when satisfying the carbon dust surplus and exhaust or under the condition of user selection, directly carry out the chip waste treatment, do not need repeatedly to point out; Also can chip remove module and be set in the situation such as print to certain number of pages, break down, carry out the chip waste treatment, and do not exhaust by carbon dust or the mode of user selection is carried out; Above-mentioned each conversion also can realize purpose of the present invention.
Above-described embodiment is to utilize the guidance panel of printer to discard operation, another conversion as various embodiments of the present invention, there is not the printer of LCDs or LED display for some, chip in can this method is removed module and is set to adopt button on the printer panel, restarted key 5 seconds such as long pressing, and the prompting of special sound effect, as: long-short-long " ticking " sound, and in user's manual with the operating instruction of this function, equally also can realize purpose of the present invention.
As another conversion of various embodiments of the present invention, chip can also be removed module be arranged in the printer operation system printer upgrade program be installed on the computer application software or other application software in, can realize purpose of the present invention equally.
As another conversion of various embodiments of the present invention, method provided by the present invention can also be for being installed in ink box chip on the ink-jet printer, and its method and the various embodiments described above and conversion institute thereof are similar.
The invention is not restricted to the various embodiments described above and conversion, other change based on technical solution of the present invention and without prejudice to the method for the object of the invention and combination thereof and also should be included in the protection domain of claim of the present invention.
Claims (10)
1. prevent the method that chip data is revealed, this chip is installed on the consumable container, be used for and the printer swap data, described chip comprises memory cell, control module and interface unit, comprises variable data memory block and primary data memory block in the described memory cell;
It is characterized in that:
Be arranged at data dump module in the described printer when meeting the cleared condition of setting, the data of chip-stored unit are carried out clear operation.
2. prevent as claimed in claim 1 the method that chip data is revealed, it is characterized in that:
Described clear operation is the part clear operation, and it is to write unified data in the variable date area of described chip-stored unit.
3. prevent as claimed in claim 1 the method that chip data is revealed, it is characterized in that:
Described clear operation is the part clear operation, and it is to write in order in the variable date area of described chip-stored unit or data that backward is arranged.
4. prevent as claimed in claim 1 the method that chip data is revealed, it is characterized in that:
Described clear operation is whole clear operations, and it is to write unified data in the All Ranges of described chip-stored unit.
5. prevent as claimed in claim 1 the method that chip data is revealed, it is characterized in that:
Described clear operation is whole clear operations, and it is to write in order in the All Ranges of described chip-stored unit or data that backward is arranged.
6. as described in any one in the claim 1 ~ 5, prevent the method that chip data is revealed, it is characterized in that:
Described cleared condition comprises judges the result that consumable items allowance exhausts in the described consumable container in the printer.
7. as described in any one in the claim 1 ~ 5, prevent the method that chip data is revealed, it is characterized in that:
Described cleared condition comprises that user selection carries out the clear operation of chip data.
8. prevent as claimed in claim 6 the method that chip data is revealed, it is characterized in that:
The concrete steps of the method are:
S11: beginning;
S12: printer detects the carbon dust surplus;
S13: judge whether carbon dust runs out of, if run out of, then enter step s14, otherwise, return step s12 and continue to detect;
S14: prompting user will carry out the waste treatment of cartridge;
S15: judge whether the user carries out the discarded operation of chip, if user selection be, namely discard operation, then enter step s16, otherwise, return step s15 and continue to wait for;
S16: waste treatment consequence prompting;
S17: whether printer proceeds discarded operation by the printing machine operation face plate prompting user, if user selection be, enter step s19, if user selection is no, then enter step s18;
S18: after waiting for that printer has been printed extra number of pages n page or leaf, enter step s14, whether will carry out waste treatment to cartridge with prompting user;
S19: printer is the discarded data of safety with the Data Update in the carbon powder box chip memory cell;
S110: finish.
9. prevent as claimed in claim 6 the method that chip data is revealed, it is characterized in that:
Described cleared condition comprises that also user selection carries out the clear operation of chip data.
10. prevent as claimed in claim 9 the method that chip data is revealed, it is characterized in that:
The concrete steps of the method are:
S21: beginning;
S22: printer detects the user and whether selects to carry out the discarded operation of chip, if select to carry out discarded operation, then enters step s23, continues among this step s22 to detect otherwise rest on;
S23: waste treatment consequence prompting;
S24: whether printer continues discarded operation by the printing machine operation face plate prompting user, if user selection is then to enter step s25; If user selection is no, then get back to the next time discarded operation that step s22 waits for the user;
S25: printer is the discarded data of safety with the Data Update in the carbon powder box chip memory cell;
S26: finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110197964.6A CN102873986B (en) | 2011-07-15 | 2011-07-15 | Prevent the method that chip data is revealed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110197964.6A CN102873986B (en) | 2011-07-15 | 2011-07-15 | Prevent the method that chip data is revealed |
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| Publication Number | Publication Date |
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| CN102873986A true CN102873986A (en) | 2013-01-16 |
| CN102873986B CN102873986B (en) | 2015-09-23 |
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| CN201110197964.6A Active CN102873986B (en) | 2011-07-15 | 2011-07-15 | Prevent the method that chip data is revealed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106945414A (en) * | 2017-03-24 | 2017-07-14 | 杭州旗捷科技有限公司 | One kind is anti-to crack chip, system and its application method |
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| CN106945414A (en) * | 2017-03-24 | 2017-07-14 | 杭州旗捷科技有限公司 | One kind is anti-to crack chip, system and its application method |
| CN106945414B (en) * | 2017-03-24 | 2018-11-16 | 杭州旗捷科技有限公司 | One kind is anti-to crack chip, system and its application method |
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| CN102873986B (en) | 2015-09-23 |
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