CN108734253A - Consumable chip verification method, consumable chip and consumable container - Google Patents
Consumable chip verification method, consumable chip and consumable container Download PDFInfo
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- CN108734253A CN108734253A CN201710243693.0A CN201710243693A CN108734253A CN 108734253 A CN108734253 A CN 108734253A CN 201710243693 A CN201710243693 A CN 201710243693A CN 108734253 A CN108734253 A CN 108734253A
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- 238000012795 verification Methods 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000003384 imaging method Methods 0.000 claims abstract description 144
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 16
- 238000010200 validation analysis Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000007639 printing Methods 0.000 description 6
- 235000013399 edible fruits Nutrition 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000013524 data verification Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17543—Cartridge presence detection or type identification
- B41J2/17546—Cartridge presence detection or type identification electronically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17566—Ink level or ink residue control
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Dry Development In Electrophotography (AREA)
- Ink Jet (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
The present invention relates to a kind of consumable chip verification method, consumable chip and consumable container, wherein consumable chip verification method includes the following steps：Consumable chip generates check value according to the sequence number of its own；The sequence number and check value are sent to imaging device；The verification result that imaging device is returned according to sequence number and/or check value is obtained, and judges whether verification result is legal verification result；If so, being verified；Wherein, the test value that same sequence number generates is fixed value.The present invention is set as fixed value by the test value for generating same sequence number, so that no matter the corresponding consumable chip of the sequence number is previously used how many times, the consumable chip can be verified by imaging device always, avoid consumable chip because verification when not by by cause unnecessary waste.
Description
Technical field
The present invention relates to the consumptive material technical fields applied to imaging device, and in particular to a kind of consumable chip, the consumptive material core
Piece verification method and the consumable container for being equipped with the consumable chip.
Background technology
Imaging device, such as printer, copy, facsimile machine and multifunctional integrated printer etc., be every field not
The office appliance that can lack, as the development imaging device of society is increasingly becoming one of family's common electric.It is set to be imaged
The consumptive materials such as ink powder or ink in standby better consumable container, it usually needs consumable chip is installed on consumable container.Pass through
Consumable chip, which is verified and communicated with the mainboard in imaging device, realizes imaging device identification consumable container, then imaging device ability
Ink powder in normal use consumable container or ink.
In the prior art, the imaging device of especially OEM productions would generally be to that would generally store consumable container in consumable chip
The information such as model, sequence number, consumptive material capacity, the consumption of consumptive material, printing times and number of copies verified.It is verified
Later, in use, imaging device can also be to the consumption of consumptive material capacity, consumptive material, printing times and printing for imaging device
Quantity is verified, for example, imaging device can to the printing times of same sequence number chip by chip twice, consumptive material capacity respectively into
Row verification, judges whether the result of verification meets preset condition respectively, if otherwise imaging device does not allow for the chip to cross machine, i.e.,
Making the chip be new chip did not also allow machine, to cause unnecessary waste.
Invention content
To solve the above problems, the present invention provides a kind of consumptive material core that may make the smooth machine excessively of consumable chip, avoid waste
The verification method of piece, a kind of consumable chip and the consumable container for being equipped with the consumable chip.
A kind of consumable chip verification method, includes the following steps：
Consumable chip generates check value according to the sequence number of its own；
The sequence number and check value are sent to imaging device；
Obtain the verification result that imaging device is returned according to sequence number and/or check value, and judge verification result whether be
Legal verification result；
If so, being verified；
Wherein, the test value that same sequence number generates is fixed value.
Preferably, after the described the step of check value is sent to imaging device, obtain imaging device according to
The verification result that sequence number and/or check value return, and judge that before whether verification result is legal step further include as follows
Step：
After the imaging device obtains check value, judge whether to be stored with the sequence number in the imaging device corresponding
Preceding check value；
If so, the preceding check value is compared by the imaging device with the check value；
The imaging device judges whether comparison result meets preset condition；
If so, the imaging device sends legal verification result to consumable chip, it is verified.
Preferably, if not being stored with the sequence number and/or the corresponding preceding check value of sequence number in the imaging device；
Then the imaging device stores the test value of this reception, and is marked as preceding check value；
The imaging device sends legal verification result to consumable chip.
Preferably, the preset condition is：The validation value is less than or equal to preceding validation value or the validation value is more than
Or it is equal to preceding validation value.
Preferably, if obtaining the verification result that imaging device is returned according to sequence number and/or check value, and judge verification knot
When fruit is illegal verification result；
The consumable chip for then switching new sequence number or more renewing.
Preferably, further include following steps before the generation check value step according to the sequence number of consumable chip：
After sequence number is read, consumable chip generates the first random number；
Obtain the second random number that imaging device is sent；
According to the pre-stored secret key of chip, the first random number and the second generating random number first object data, and by
One random number, the second random number and first object data are sent to imaging device；
Obtain the initial authentication knot that imaging device is generated according to the first random number, the second random number and first object data
Fruit, and judge whether initial authentication result is legal；
If initial authentication result is legal and then executes described according to the sequence number of consumable chip generation check value step.
Preferably, in step according to the pre-stored secret key of chip, the first random number and second the first mesh of generating random number
Mark data, and after the first random number, the second random number and first object data are sent to imaging device, step obtain at
As the initial authentication that equipment is generated according to the first random number, the second random number and first object data is as a result, and judge initially to test
Further include following steps before whether card result is legal：
The imaging device calculates private key according to sequence number, and according to the private key, the first random number and the second nonce count
Calculation obtains the second target data；
First object data are compared by the imaging device with the second target data；
The initial authentication result is generated according to comparison result.
The present invention also provides a kind of consumable chips, including
Generation module is used to generate check value according to the sequence number of consumable chip；
Memory module is used to store the check value；
First sending module is used to the check value being sent to imaging device；
First acquisition module is used to obtain the verification result that imaging device is returned according to sequence number and/or check value；
First judgment module is used to judge whether verification result to be legal verification result；If so, being verified；
Wherein, the test value that same sequence number generates is fixed value.
Preferably, the consumable chip further includes,
Random number generation module is used for after sequence number is read, and consumable chip generates the first random number；
Second acquisition module is used to obtain the second random number of imaging device transmission；
Target data generation module is used for according to the pre-stored secret key of chip, the first random number and the second random number
Generate first object data；
Second sending module, is used to the first random number, the second random number and first object data being sent to imaging and sets
It is standby；
Third acquisition module is used to obtain imaging device according to the first random number, the second random number and first object number
According to the initial authentication result of generation；
Second judgment module is used to judge whether initial authentication result to be legal；
Execution module, be used for the second judgment module judging result be initial authentication result it is legal and then execute
It is described that check value step is generated according to the sequence number of consumable chip.
Include the vessel for storing consumptive material the present invention also provides a kind of consumable container, on the vessel at least
There are one installation positions for setting, further include consumable chip, and the consumable chip is installed on the installation position, which is right
It is required that 9 or according to any one of claims 10 consumable chips, the verification method of the consumable chip is claim 1-8 any one of them
Verification method.
Beneficial effects of the present invention：
With the prior art, the present invention by the sequence number of consumable chip generate with the consumable chip relative to check value；
Then the check value is sent to imaging device, check value is verified by imaging device, and back-checking result.Consumption
Material chip judges the legitimacy of check results after obtaining the verification result, illustrates to consume if the check results are legal
Material chip checking passes through, which can normally be used by imaging device.Due to heretofore described check value relative to
Identical Serial No. fixed value, that is to say, that no matter the corresponding consumable chip of the sequence number is previously used how many times, in quilt
The check value that returns is fixed when imaging device is verified, as long as therefore certain primary check value check results be it is legal, then
Illustrate that the corresponding consumable chip of the sequence number can repeat to be verified and used by imaging device to have identical sequence in other words
Number multiple chips can be verified and used by imaging device so that the corresponding consumable chip of the sequence number can repeat
Utilize, avoid consumable chip because sequence number verification not by by cause consumable chip cannot use caused by waste.
Description of the drawings
Fig. 1 is a kind of consumable chip verification method flow chart in the embodiment of the present invention；
Fig. 2 is flow chart when imaging device is according to check value generation check results in the embodiment invented；
Fig. 3 is the flow chart of imaging device identification sequence number in the embodiment invented；
Fig. 4 is the flow chart that initial authentication result generates in the embodiment invented；
Fig. 5 is a kind of module map of consumable chip in the embodiment invented.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the present invention is described further：
The present embodiment provides a kind of consumable chip verification methods, include the following steps：
Referring to Fig.1, step S01 generates check value according to the sequence number of consumable chip；Wherein, same sequence number generates
The test value is fixed value.The check value can be N, can be binary data, decimal data or hexadecimal number
Word.Due to the check value be it is corresponding with sequence number, the check value only with respect to for same sequence number its be solid
Fixed, that is to say, that check value can be different caused by different sequence numbers, but verification caused by same sequence number
Value is identical.No matter the how many times that the consumable chip of same sequence number works, the check value of the generation is equal.
The check value is sent to imaging device by step S02；The check value can be verified by imaging device, and led to
It crosses imaging device and corresponding verification result is generated according to the check value.Since the check value that same sequence number generates is identical
, if therefore respective chip generated verification result when being communicated with imaging device first time is legal, therefore produced later
Raw verification result is also legal.
Step S03 obtains the verification result that imaging device is returned according to sequence number and/or check value, and judges verification knot
Whether fruit is legal verification result；It if so then execute step S04, otherwise verifies and does not pass through, which cannot be by imaging device
It uses, i.e., consumable chip cannot be verified, at this time replaceable sequence number or the consumable chip more renewed.It can deposit in the chip
Store up multiple sequence numbers, when one of them cannot by imaging device using when then switch to next sequence number, then execute step
S01, naturally it is also possible to which step S01 is executed by the consumable chip more renewed again later.
Step S04, the verification result that the imaging device returns to consumable chip are legal verification result, then verification is logical
It crosses, illustrates that the sequence number of the chip can be used by imaging device, i.e., consumable chip can be verified.
With reference to Fig. 2, as a preferred option, after the described the step of check value is sent to imaging device,
Before the step of obtaining the verification result that imaging device is returned according to sequence number and/or check value (i.e. after step S02, step
Before rapid S03) it can also include the following steps, following steps are mainly the mistake that imaging device generates check results according to check value
Journey, following steps are mainly completed in an imaging device：
After imaging device described in step A01 obtains check value, judge the sequence whether is stored in the imaging device
Number corresponding preceding check value.After usual consumable chip is communicated with imaging device, if the EEPROM data of consumable chip storage can
It is verified by imaging device, then the check value of this communication can be sent to imaging device by consumable chip, and be stored in installation
In memory in imaging device.If consumable chip is not with imaging device communications records, imaging device will not store phase
The check value of consumable chip corresponding sequence number is answered, i.e.,：The sequence number and/or sequence number pair are not stored in the imaging device
The preceding check value answered.When the consumable chip is communicated with imaging device for the first time, then the imaging device stores this reception
The test value of consumable chip corresponding sequence number, and it is marked as preceding check value, the imaging device sends legal verification result
Illustrate that the consumable chip can be verified to consumable chip.
Step A02 illustrates phase if being stored with the sequence number and/or the corresponding preceding check value of sequence number in imaging device
It answers the corresponding consumable chip of sequence number authenticated by imaging device, and preceding check value can be stored in imaging device.If the sequence
When the corresponding consumable chip of row number is verified by imaging device again, consumable chip can then send corresponding with sequence number again
Check value is to imaging device.The imaging device compares the check value with the preceding check value stored when preceding primary communication
Compared with.Since the sequence number of identical chips is identical, preceding check value can be identical as check value under normal conditions.
Step A03, the imaging device judge whether comparison result meets preset condition.If satisfied, this illustrates the imaging
Equipment can allow the corresponding consumable chip of the sequence number to use, and the check value is labeled as preceding check value；Otherwise, this at
As equipment does not allow the corresponding consumable chip of the sequence number to use, and it can also prompt mistake.The preset condition can be to test
Card value is less than or equal to preceding validation value or the validation value is greater than or equal to preceding validation value.The preset condition can be set in imaging
Design is completed before standby manufacture.Since check value caused by the consumable chip of same sequence number in the present invention is fixed
Value, so how the number no matter consumable chip of same sequence number uses in same printer can meet described preset
Condition.
By taking the preset condition is less than or equal to preceding validation value for validation value as an example, to the consumable chip verification method
Verification process illustrates：
When some consumable chip communicates for the A times with imaging device, which generates according to the sequence number of its own
Check value N, and check value N is sent to imaging device, the imaging device can be in the inspection for receiving consumable chip corresponding sequence number
After value N, and check value N and the preceding check value N ' are compared, when the N is less than or equal to the N ', are said
The bright sequence number can be used by imaging device, and check value N is covered the preceding check value N ', then again by check value N
Labeled as preceding check value, what the imaging device was sent at this time is legal verification result to consumable chip.The preceding check value N '
The check value retained when can be communicated with imaging device for the A-1 times by the consumable chip of same sequence number.When the N is more than institute
When stating N ', illustrate that the sequence number cannot be used by imaging device, can then switch the consumable chip that new sequence number is at this time
Verification process is re-executed with imaging device, or the consumable chip more renewed re-executes verification process with imaging device.Make
For preferred embodiment, the check value can be corresponded to by number that the sequence number is used by imaging device or the sequence number
Consumptive material residual capacity or consumptive material consumption etc. are indicated.Since check value is fixed value, so being printed in the sequence number
What corresponding sequence number uses after machine use number, residual capacity or consumption etc. were all no variation in.
Step A04, if the comparison result of the step A03 meets preset condition, the imaging device, which is sent, to be closed
Method verification result is to consumable chip.If the imaging device judges that comparison result is unsatisfactory for preset condition；The then imaging device
Illegal verification result is sent to consumable chip.
With reference to Fig. 3, as another preferred embodiment, it is described according to the sequence number of consumable chip generate check value step it
Before, further include following steps, which is mainly the process that imaging device is identification sequence number：
Step B01, after sequence number is read, consumable chip generates the first random number.Usual consumable chip is mounted
In in imaging device, upon power-up, imaging device can obtain sequence number, and carry out proof of algorithm to sequence number.
Step B02 obtains the second random number that imaging device is sent.Imaging device is after obtaining sequence number, according to this
Sequence number generates the second random number.
Step B03, according to the pre-stored secret key of chip, the first random number and the second generating random number first object number
According to, and the first random number, the second random number and first object data are sent to imaging device.The secret key can be set in advance
It has set.The imaging device can according to the first random number, the second random number and first object data generate initial authentication as a result,
And the initial authentication result is sent to consumable chip, then execute step B04.
Step B04, acquisition imaging device generate initial according to the first random number, the second random number and first object data
Verification result, and judge whether initial authentication result is legal.
Step B05, if initial authentication result is legal and then executes described according to the generation verification of the sequence number of consumable chip
It is worth step.
With reference to Fig. 4, preferably, step according to the pre-stored secret key of chip, the first random number and second with
Machine number generate first object data, and by the first random number, the second random number and first object data be sent to imaging device it
Afterwards, the initial authentication knot that imaging device is generated according to the first random number, the second random number and first object data is obtained in step
Fruit, and (that is, after the step B03 with before step B04) is judged before whether initial authentication result is legal, further include walking as follows
Suddenly, the process that initial authentication result generates when following steps are mainly identification sequence number：
Step C01, the imaging device calculate private key according to sequence number, and according to the private key, the first random number and second
The second target data is calculated in random number.The sequence number can be the sequence number that imaging device is obtained from consumable chip.This
Sequence number described in step can the identification of this imaging device, the sequence number in the step can be arranged with corresponding consumable chip
Sequence number in EEPROM differs.
First object data are compared by step C02, the imaging device with the second target data.Usual first object number
According to be with the second target result of the comparison it is preset, if comparison result be preset value or range, explanation
The consumable chip can be identified that otherwise consumable chip cannot be identified by imaging device by imaging device.
Step C03 generates the initial authentication result according to comparison result.The structure of the usual comparison can be the two
Between size compare it is being obtained as a result, then can obtain initial authentication according to the size of comparison result as a result, for example when
The initial authentication result is legal verification result when relatively result is preset value or range, is not otherwise legal verification knot
Fruit.
With reference to Fig. 5, a kind of consumable chip is also provided in the embodiment of the present invention, more than which can be
Verification method described in each embodiment, the consumable chip include：
Generation module 1 is used to generate check value according to the sequence number of consumable chip.Wherein, same sequence number generates
The test value is fixed value.
Memory module 2 is used to store the check value.Memory module includes metering zone, non-metering area, in the present embodiment
Memory module include volatile memory SRAM and nonvolatile memory EEPROM, non-metering area is set in EEPROM,
For storing the EEPROM data such as cartridge model, plant code, sequence number and date of manufacture, metering zone is set in SRAM,
For storing carbon dust surplus, total printing amount, the use state for having consumed number of print pages, a upper printing operating time, print procedure
And check value etc..
First sending module 3 is used to the check value being sent to imaging device.
First acquisition module 4 is used to obtain the verification result that imaging device is returned according to check value.
First judgment module 5 is used to judge whether verification result to be legal verification result；If so, being verified；It is no
It then verifies and does not pass through.
As a preferred option, the consumable chip can also include,
Random number generation module 6, is used for after sequence number is read, and consumable chip generates the first random number.
Second acquisition module 7 is used to obtain the second random number of imaging device transmission.
Target data generation module 8 is used for according to the pre-stored secret key of chip, the first random number and the second random number
Generate first object data.
Second sending module 9, is used to the first random number, the second random number and first object data being sent to imaging and sets
It is standby.
Third acquisition module 10 is used to obtain imaging device according to the first random number, the second random number and first object
The initial authentication result that data generate.
Second judgment module 11 is used to judge whether initial authentication result to be legal；Illustrate the consumable chip if legal
Otherwise can not it be done identified by imaging device equipment.
Execution module 12, be used for the second judgment module 11 judging result be initial authentication result it is legal and then
It executes described according to the sequence number of consumable chip generation check value step.
Include the vessel and consumable chip for storing consumptive material, the container the present invention also provides a kind of consumable container
It is installed on the installation position at least provided with an installation position, the consumable chip on ontology, which is above each reality
The consumable chip described in example is applied, the verification method of the consumable chip is the verification method described in the above various embodiments.
The consumable chip verification method of the present invention is by the verification to sequence number so that corresponding consumable chip can by
As equipment uses；Since the present invention is by being fixed value, imaging device institute by check value caused by same sequence number
Receive the corresponding check value of each sequence number be fixed value, as long as therefore the consumable chip it is verified by imaging device for the first time
Afterwards, no matter consumable chip is previously used how many times, which can be verified by imaging device always.This usual hair
The bright verification method is the verification to sequence number, and the EPPROM data that this method is usually happened at consumable chip are imaged
After equipment identification.In addition the step of present invention further includes the steps that sequence number identifies before verification sequence number, the identification is logical
It is often to be happened at before EPPROM data are identified by imaging device.
It will be apparent to those skilled in the art that technical solution that can be as described above and design, make various other
Corresponding change and deformation, and all these changes and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (10)
1. a kind of consumable chip verification method, which is characterized in that include the following steps：
Consumable chip generates check value according to the sequence number of its own；
The sequence number and check value are sent to imaging device；
The verification result that imaging device is returned according to sequence number and/or check value is obtained, and judges whether verification result is legal
Verification result；
If so, being verified；
Wherein, the test value that same sequence number generates is fixed value.
2. according to claim 1 consumable chip verification method, which is characterized in that the check value is sent to imaging sets described
After standby step, imaging device is being obtained according to sequence number and/or the verification result of check value return, and judge verification result
Further include following steps before whether being legal step：
After the imaging device obtains check value, judge the corresponding preceding school of the sequence number whether is stored in the imaging device
Test value；
If so, the preceding check value is compared by the imaging device with the check value；
The imaging device judges whether comparison result meets preset condition；
If so, the imaging device sends legal verification result to consumable chip, it is verified.
3. according to claim 2 consumable chip verification method, which is characterized in that if not being stored with the sequence in the imaging device
Row number and/or the corresponding preceding check value of sequence number；
Then the imaging device stores the test value of this reception, and is marked as preceding check value；
The imaging device sends legal verification result to consumable chip.
4. consumable chip verification method according to claim 3, which is characterized in that the preset condition is：The validation value
It is greater than or equal to preceding validation value less than or equal to preceding validation value or the validation value.
5. according to claim 1 consumable chip verification method, which is characterized in that if obtain imaging device according to sequence number and/or
The verification result that check value returns, and when judging verification result for illegal verification result；
The consumable chip for then switching new sequence number or more renewing.
6. according to claim 1 consumable chip verification method, which is characterized in that generated according to the sequence number of consumable chip described
Further include following steps before check value step：
After sequence number is read, consumable chip generates the first random number；
Obtain the second random number that imaging device is sent；
According to the pre-stored secret key of chip, the first random number and the second generating random number first object data, and by first with
Machine number, the second random number and first object data are sent to imaging device；
The initial authentication that acquisition imaging device is generated according to the first random number, the second random number and first object data is as a result, simultaneously
Judge whether initial authentication result is legal；
If initial authentication result is legal and then executes described according to the sequence number of consumable chip generation check value step.
7. according to claim 6 consumable chip verification method, which is characterized in that step according to the pre-stored secret key of chip,
First random number and the second generating random number first object data, and by the first random number, the second random number and first object number
After being sent to imaging device, imaging device is obtained according to the first random number, the second random number and first object number in step
According to the initial authentication of generation as a result, and further including following steps before judging whether initial authentication result is legal：
The imaging device calculates private key according to sequence number, and is calculated according to the private key, the first random number and the second random number
Go out the second target data；
First object data are compared by the imaging device with the second target data；
The initial authentication result is generated according to comparison result.
8. a kind of consumable chip, it is characterised in that：Including
Generation module is used to generate check value according to the sequence number of consumable chip；
Memory module is used to store the check value；
First sending module is used to the check value being sent to imaging device；
First acquisition module is used to obtain the verification result that imaging device is returned according to sequence number and/or check value；
First judgment module is used to judge whether verification result to be legal verification result；If so, being verified；
Wherein, the test value that same sequence number generates is fixed value.
9. requiring the consumable chip described in 8 according to power, it is characterised in that：Further include,
Random number generation module is used for after sequence number is read, and consumable chip generates the first random number；
Second acquisition module is used to obtain the second random number of imaging device transmission；
Target data generation module is used for according to the pre-stored secret key of chip, the first random number and the second generating random number
First object data；
Second sending module is used to the first random number, the second random number and first object data being sent to imaging device；
Third acquisition module is used to obtain imaging device and is given birth to according to the first random number, the second random number and first object data
At initial authentication result；
Second judgment module is used to judge whether initial authentication result to be legal；
Execution module, be used for the second judgment module judging result be initial authentication result it is legal and then execute described in
Check value step is generated according to the sequence number of consumable chip.
10. a kind of consumable container includes the vessel for storing consumptive material, is installed at least provided with one on the vessel
Position, it is characterised in that：Further include consumable chip, the consumable chip is installed on the installation position, which wants for right
Ask 8 or claim 9 described in consumable chip, the verification method of the consumable chip is that claim 1-7 any one of them is tested
Card method.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/080570 WO2018188071A1 (en) | 2017-04-14 | 2017-04-14 | Method for verifying consumable chip, consumable chip and consumable container |
| CN201710243693.0A CN108734253B (en) | 2017-04-14 | 2017-04-14 | Consumable chip verification method, consumable chip and consumable container |
| JP2018042290A JP6534467B2 (en) | 2017-04-14 | 2018-03-08 | Verification method of consumables tip, consumables tip and consumables container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710243693.0A CN108734253B (en) | 2017-04-14 | 2017-04-14 | Consumable chip verification method, consumable chip and consumable container |
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| CN108734253A true CN108734253A (en) | 2018-11-02 |
| CN108734253B CN108734253B (en) | 2024-01-30 |
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| Country | Link |
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| JP (1) | JP6534467B2 (en) |
| CN (1) | CN108734253B (en) |
| WO (1) | WO2018188071A1 (en) |
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Also Published As
| Publication number | Publication date |
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| CN108734253B (en) | 2024-01-30 |
| JP2018176723A (en) | 2018-11-15 |
| JP6534467B2 (en) | 2019-06-26 |
| WO2018188071A1 (en) | 2018-10-18 |
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