CN109426461A - A kind of printer security control chip - Google Patents
A kind of printer security control chip Download PDFInfo
- Publication number
- CN109426461A CN109426461A CN201710789267.7A CN201710789267A CN109426461A CN 109426461 A CN109426461 A CN 109426461A CN 201710789267 A CN201710789267 A CN 201710789267A CN 109426461 A CN109426461 A CN 109426461A
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- 238000007639 printing Methods 0.000 claims abstract description 60
- 238000004891 communication Methods 0.000 claims abstract description 43
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 238000012795 verification Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000000284 extract Substances 0.000 claims abstract description 7
- 230000001755 vocal effect Effects 0.000 claims description 19
- 230000001815 facial effect Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 238000010200 validation analysis Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
- G06F3/1237—Print job management
- G06F3/1238—Secure printing, e.g. user identification, user rights for device usage, unallowed content, blanking portions or fields of a page, releasing held jobs
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
The invention discloses a kind of printer security control chips, are related to printing field, comprising: communication interface modules, instruction detection module, printing drive module, power detection module and processor module；Received print command is sent to processor module by communication interface modules, processor module extracts verification code information from print command, command verification module is proved to be successful signal in the state of judging that verification code information is consistent with the printing identifying code that itself is stored, to processor module transmission；Processor module reception is proved to be successful signal, is controlled by printing drive module printing execution unit, executes print out task.The printer security control chip provided through the invention, realize printing encryption and before encrypted document printing to the identity validation of user, it eliminates document print and haves the defects that risk of divulging a secret, it avoids and brought security hidden trouble is transmitted by clear-text way due to file to be printed, so that printing is more convenient, reliable.
Description
Technical field
The present invention relates to printing technique field more particularly to a kind of printer security control chips.
Background technique
Printer is the important output equipment being widely used in computer office system, is realized by printer by electronics
The purpose that document is exported in a manner of the paper needed.With the epoch that network technology develops rapidly, more and more network applications
Be dissolved into the work and study of people, hold the balance, is indispensable, the network printer using more and more extensive, to people's
Work, life bring great convenience.But the network printer also brings some safety problems, in the document of printing, exists
The information of a large amount of need for confidentiality, such as be related to business secret, know-how, individual privacy information, these are related to secret information
Electronic document printout when, maintain secrecy, prevent from divulging a secret.Currently, the file to be printed that printer receives is
It is transmitted using clear-text way, is easy obtained by a hacker, thus the problems such as causing information leakage, there are security risks.
Summary of the invention
In view of this, the invention solves a technical problem be to provide a kind of printer security control chip.
According to an aspect of the present invention, a kind of printer security control chip is provided, comprising: communication interface modules refers to
Enable detection module, printing drive module, power detection module and processor module；The communication interface modules is for connecing sending and receiving
Send data；The processor module respectively with the communication interface modules, described instruction detection module, the power detection module
It is connected by the bus of chip interior；Print execution component is connect by the printing drive module with the processor module,
Received print command is sent to the processor module by the communication interface modules, and the processor module is from the printing
Verification code information is extracted in instruction, and the identifying code is sent to described instruction authentication module and is verified, and described instruction is tested
Module is demonstrate,proved in the state of judging that the verification code information is consistent with the printing identifying code that itself is stored, Xiang Suoshu processor module
Transmission is proved to be successful signal；The processor module reception is proved to be successful signal, is held by the printing drive module to printing
Row component is controlled, and print out task is executed；The power detection module detects offer under the control of the processor module
To the power supply of chip.
Optionally, comprising: verifying code memory passes through in chip with described instruction detection module and the processor module
The bus in portion connects, and for receiving the printing identifying code of the processor module transmission and storing, and is receiving the finger
The printing identifying code is sent to described instruction detection module after the identifying code request instruction for enabling detection module send.
Optionally, further includes: file decryption module is connect with the processor module by the bus of chip interior；Institute
It states processor module and encrypted message and encrypted print file is received by the communication interface modules, by the encrypted message and institute
It states encryption file and is sent to the file decryption module；The file decryption module plays the encryption using the encrypted message
Printed text part is decrypted, and obtains original print file and the original print file is sent to the processor module,
The original print file is sent to the printing drive module by the processor module, passes through the printing drive module control
Print execution component processed prints the original print file.
Optionally, the processor module is connect by bus with mimeograph documents memory, the mimeograph documents memory
For storing the encrypted print file, the encrypted message and the original print file.
Optionally, further includes: subscriber authentication module is connect with the processor module, user's input for that will acquire
Verification information by the processor module and the communication interface modules be sent to external authentication equipment carry out user recognize
Card, so that external authentication equipment determines the corresponding printing account of this user, based on this printing account and print right.
Optionally, the subscriber authentication module is connect with touch screen module；The touch screen module is used for the use that will be acquired
Name in an account book, password are sent to the subscriber authentication module；The user name, the password are sent to institute by the subscriber authentication module
Processor module is stated, the processor module sends the user name, the password to by the communication interface modules outer
Portion's authenticating device carries out user authentication.
Optionally, the subscriber authentication module is connect with finger print acquisition module；The finger print acquisition module is used for acquiring
The fingerprint of acquisition is carried out numeralization processing by preset fingerprint algorithm by the fingerprint at family, obtains fingerprint feature information, and by fingerprint
Characteristic information is sent to the subscriber authentication module；The fingerprint feature information is sent to the place by the subscriber authentication module
Device module is managed, the processor module sends external authentication for the fingerprint feature information by the communication interface modules and sets
It is standby to carry out user authentication.
Optionally, the subscriber authentication module is connect with vocal print acquisition module, and the vocal print acquisition module is used for acquiring
The sound of acquisition is carried out numeralization processing by preset vocal print algorithm by the sound at family, obtains vocal print feature information, and by vocal print
Characteristic information is sent to the subscriber authentication module；The vocal print feature information is sent to the place by the subscriber authentication module
Device module is managed, the processor module sends external authentication for the fingerprint feature information by the communication interface modules and sets
It is standby to carry out user authentication.
Optionally, the subscriber authentication module is connect with facial acquisition module；It is described face acquisition module for obtain to
The facial image of identification extracts the face characteristic to be identified in the facial image to be identified, and the face to be identified is special
It levys and gives the subscriber authentication module；The face characteristic is sent to the processor module by the subscriber authentication module,
The processor module, which sends external authentication equipment progress user for the face characteristic by the communication interface modules, to be recognized
Card.
Optionally, the subscriber authentication module is connect with GPS module；The GPS module is used to obtain GPS position information,
GPS position information is sent to the subscriber authentication module, the GPS position information is sent to institute by the subscriber authentication module
Processor module is stated, the processor module, which sends outside for the GPS position information by the communication interface modules, to be recognized
Demonstrate,prove equipment.
Optionally, the communication mode of the communication interface modules and the external authentication equipment include: wifi, Ethernet,
4G；The external authentication equipment includes: printing Central Management Server.
Printer security control chip of the invention, processor module extract verification code information from print command, will test
Card code is sent to instruction detection module, determines that verification code information is consistent with the printing identifying code that itself is stored in instruction detection module
In the state of, processor module controls printing execution unit by printing drive module, executes print out task；Using close
Code information is decrypted to encrypted print file and executes print out task, and authenticates to the identity of user；By mentioning
The printer security control chip of confession is realized printing encryption and before encrypted document printing to the identity validation of user, is eliminated
Document print haves the defects that risk of divulging a secret, and avoids hidden by safety brought by clear-text way transmission due to file to be printed
Suffer from problem.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the present invention, for those of ordinary skill in the art, without any creative labor, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the module diagram of one embodiment of printer security control chip according to the present invention；
Fig. 2 is the connection schematic diagram of one embodiment of printer security control chip according to the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Simultaneously, it should be appreciated that for ease of description, the size of various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
The embodiment of the present invention can be applied to computer system/server, can be with numerous other general or specialized calculating
System environments or configuration operate together.Suitable for be used together with computer system/server well-known computing system, ring
The example of border and/or configuration includes but is not limited to: personal computer system, server computer system, thin client, thick client
Machine, hand-held or laptop devices, microprocessor-based system, set-top box, programmable consumer electronics, NetPC Network PC,
Little type Ji calculates machine Xi Tong ﹑ large computer system and the distributed cloud computing technology environment including above-mentioned any system, etc..
Computer system/server can be in computer system executable instruction (such as journey executed by computer system
Sequence module) general context under describe.In general, program module may include routine, program, target program, component, logic, number
According to structure etc., they execute specific task or realize specific abstract data type.Computer system/server can be with
Implement in distributed cloud computing environment, in distributed cloud computing environment, task is long-range by what is be linked through a communication network
Manage what equipment executed.In distributed cloud computing environment, it includes the Local or Remote meter for storing equipment that program module, which can be located at,
It calculates in system storage medium.
As shown in Figure 1, 2, the present invention provides a kind of printer security control chip 1, comprising: communication interface modules 12 refers to
Enable detection module 13, printing drive module 14, power detection module 15 and processor module 11.Printer security control chip 1
It can be asic chip etc..
Communication interface modules 12 is for receiving, sending data.Communication interface modules 12 is led to external authentication equipment 2
Letter, external authentication equipment 2 can be printing Central Management Server etc., provide the functions such as user's checking, printing authorization.Communication connects
Mouth mold block 12 and the communication mode of external authentication equipment 2 include wifi, Ethernet, 4G etc..Communication interface modules 12 can also be with
Client device 3 connects, and client device 3 can be PC, mobile terminal etc., and client device 1 can pass through printer safety
Control 1 mimeograph documents of chip etc..
Processor module 11 passes through core with communication interface modules 12, instruction detection module 13, power detection module 15 respectively
Bus connection inside piece.The print execution component 4 of printer is connect by printing drive module 14 with processor module 11, is led to
Believe that received print command is sent to processor module 11 by interface module 12, processor module 11 is extracted from print command and tested
Code information is demonstrate,proved, verification code information can be set of number etc..Identifying code is sent to command verification module 13 by processor module 11
Verified, command verification module 13 in the state of judging that verification code information is consistent with the printing identifying code that itself is stored, to
The transmission of processor module 11 is proved to be successful signal, if inconsistent, command verification module 13 sends out identifying code authentication failed message
Give processor module 11.The reception of processor module 11 is proved to be successful signal, passes through 14 pairs of printing enforcement divisions of printing drive module
Part 4 is controlled, and control printer executes print out task.Power detection module 15 is detected under the control of processor module 11 and is mentioned
Supply the power supply of chip.
Verifying code memory 18 can be connected with instruction detection module 13 and processor module 11 by the bus of chip interior
It connects, for receiving the printing identifying code of the transmission of processor module 11 and storing, and is receiving testing for the transmission of instruction detection module 13
Printing identifying code is sent to instruction detection module 13 after card code request instruction.
File decryption module 16 is connect with processor module 11 by the bus of chip interior.Processor module 11 passes through logical
Believe that interface module 12 receives encrypted message and encrypted print file, sends file decryption module for encrypted message and encryption file
16.File decryption module 16 is decrypted encrypted print file using encrypted message, and acquisition original print file simultaneously will
Original print file is sent to processor module 11, and original print file is sent to printing drive module by processor module 11
14, print execution component 4 is controlled by printing drive module 14 and prints original print file.The mode encrypted, decrypted can
To use symmetric key algorithm, asymmetric key algorithm etc..Carry out symmetric cryptography, the method that the symmetrical decryption of progress uses includes:
DES algorithm, 3DES algorithm etc..Carrying out asymmetric encryption, carrying out the method that asymmetric decryption uses includes: RSA Algorithm, knapsack calculation
Method etc..
Processor module 11 is connect by bus with mimeograph documents memory 19, and mimeograph documents memory 19 adds for storing
Close mimeograph documents, encrypted message and original print file.After original print file printout success, mimeograph documents memory 19 is deleted
Except encrypted print file, encrypted message and original print file, mimeograph documents memory 19 can carry out file backup, prevent from anticipating
Outer power-off and so on.
In one embodiment, subscriber authentication module 17 is connect with processor module 11, user's input for that will acquire
Verification information external authentication equipment 2 be sent to by processor module 11 and communication interface modules 12 carry out user authentication,
So that external authentication equipment 2 determines the corresponding printing account of this user, print right is determined based on this printing account.Communication interface
Module 12 receives the verification result that external authentication equipment 2 is sent, and processor module 11 determines that user whether can based on verification result
Enough carry out corresponding operation.
When user need to carry out printer using, configuration, management when, need to verify the identity of user.It is external
Authenticating device 2 can pre-establish the corresponding printing account of user and print right.Authentication information include: user name,
Password, vocal print, fingerprint, facial characteristics etc..Whether print right includes which printer can be used, can carry out to printer
Management etc..The mode authenticated for user can be cipher authentication, finger print identifying, face recognition, Application on Voiceprint Recognition etc..
Subscriber authentication module 17 is connect with touch screen module 20.Touch screen module 20 be used for will acquire user name, password
It is sent to subscriber authentication module 17.User name, password are sent to processor module 11, processor module by subscriber authentication module 17
11, which send external authentication equipment 2 for user name, password by communication interface modules 12, carries out user authentication, determines user identity
And obtain user right.
Subscriber authentication module 17 is connect with finger print acquisition module 21.Finger print acquisition module 21 is used to acquire the fingerprint of user,
The fingerprint of acquisition is subjected to numeralization processing by preset fingerprint algorithm, obtains fingerprint feature information, and by fingerprint feature information
It is sent to subscriber authentication module 17.Fingerprint feature information is sent to processor module 11, processor die by subscriber authentication module 17
Block 11 sends external authentication equipment 2 for fingerprint feature information by communication interface modules 12 and carries out user authentication, determines user
Identity simultaneously obtains user right.
Subscriber authentication module 17 is connect with vocal print acquisition module 22, and vocal print acquisition module 22 acquires the sound of user, will be adopted
The sound of collection carries out numeralization processing by preset vocal print algorithm, obtains vocal print feature information, and vocal print feature information is sent
To subscriber authentication module 17.Vocal print feature information is sent to processor module 11, processor module 11 by subscriber authentication module 17
External authentication equipment 2 is sent by fingerprint feature information by communication interface modules 12 and carries out user authentication, determines user identity
And obtain user right.
Subscriber authentication module 17 is connect with facial acquisition module 23.Facial acquisition module 23 is for obtaining face to be identified
Image, extracts the face characteristic to be identified in facial image to be identified, and face characteristic to be identified is sent to user's checking mould
Block 17.Face characteristic is sent to processor module 11 by subscriber authentication module 17, and processor module 11 passes through communication interface modules
Face characteristic is sent external authentication equipment 2 by 12 carries out user authentication.
Subscriber authentication module 17 is connect with GPS module 24.GPS module 24 is for obtaining GPS position information, by GPS location
Information is sent to subscriber authentication module 17, and GPS position information is sent to processor module 11, processor by subscriber authentication module 17
Module 11 sends external authentication equipment 2 for GPS position information by communication interface modules 12, determines the position of printer.
The printer security control chip provided in above-described embodiment, processor module extract identifying code from print command
Identifying code is sent to instruction detection module by information, determines the printing of verification code information and itself storage in instruction detection module
In the state that identifying code is consistent, processor module controls printing execution unit by printing drive module, executes printing
Task；Print out task is decrypted and executed to encrypted print file using encrypted message, and the identity of user is carried out
Certification；By the printer security control chip of offer, printing encryption is realized and before encrypted document printing to the identity of user
Confirmation, eliminates document print and haves the defects that risk of divulging a secret, avoid and transmit institute by clear-text way by file to be printed
Bring security hidden trouble, so that printing is more convenient, reliable.
Method and system of the invention may be achieved in many ways.For example, can by software, hardware, firmware or
Software, hardware, firmware any combination realize method and system of the invention.The said sequence of the step of for method is only
In order to be illustrated, the step of method of the invention, is not limited to sequence described in detail above, especially says unless otherwise
It is bright.In addition, in some embodiments, also the present invention can be embodied as to record program in the recording medium, these programs include
For realizing machine readable instructions according to the method for the present invention.Thus, the present invention also covers storage for executing according to this hair
The recording medium of the program of bright method.
Description of the invention is given for the purpose of illustration and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
The solution present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (11)
1. a kind of printer security control chip characterized by comprising
Communication interface modules, instruction detection module, printing drive module, power detection module and processor module；The communication
Interface module is for receiving, sending data；The processor module detects mould with the communication interface modules, described instruction respectively
Block, the power detection module are connected by the bus of chip interior；Print execution component by the printing drive module with
The processor module connection, received print command is sent to the processor module by the communication interface modules, described
Processor module extracts verification code information from the print command, and the identifying code is sent to described instruction authentication module
It is verified, described instruction authentication module is in the consistent state of printing identifying code for judging the verification code information and itself storage
Under, the transmission of Xiang Suoshu processor module is proved to be successful signal；The processor module reception is proved to be successful signal, is beaten by described
Print drive module controls printing execution unit, executes print out task；The power detection module is in the processor die
Detection is supplied to the power supply of chip under the control of block.
2. security control chip as described in claim 1 characterized by comprising
Verifying code memory is connect with described instruction detection module and the processor module by the bus of chip interior, is used for
It receives the printing identifying code that the processor module is sent and stores, and receiving testing for described instruction detection module transmission
The printing identifying code is sent to described instruction detection module after card code request instruction.
3. security control chip as described in claim 1, which is characterized in that further include:
File decryption module is connect with the processor module by the bus of chip interior；The processor module passes through institute
It states communication interface modules and receives encrypted message and encrypted print file, send institute for the encrypted message and the encryption file
State file decryption module；Place is decrypted to the encrypted print file using the encrypted message in the file decryption module
Reason obtains original print file and the original print file is sent to the processor module, and the processor module will
The original print file is sent to the printing drive module, controls print execution component by the printing drive module and beats
Print the original print file.
4. security control chip as described in claim 1, which is characterized in that
The processor module is connect by bus with mimeograph documents memory, and the mimeograph documents memory is described for storing
Encrypted print file, the encrypted message and the original print file.
5. security control chip as claimed in claim 4, which is characterized in that further include:
Subscriber authentication module is connect with the processor module, and the verification information of user's input for that will acquire passes through described
Processor module and the communication interface modules are sent to external authentication equipment and carry out user authentication, so that external authentication equipment
The corresponding printing account of this user is determined, based on this printing account and print right.
6. security control chip as claimed in claim 5, which is characterized in that
The subscriber authentication module is connect with touch screen module；The touch screen module be used for will acquire user name, password send out
Give the subscriber authentication module；The user name, the password are sent to the processor die by the subscriber authentication module
Block, the processor module send external authentication equipment for the user name, the password by the communication interface modules
Carry out user authentication.
7. security control chip as claimed in claim 5, which is characterized in that
The subscriber authentication module is connect with finger print acquisition module；The finger print acquisition module is used to acquire the fingerprint of user, will
The fingerprint of acquisition carries out numeralization processing by preset fingerprint algorithm, obtains fingerprint feature information, and fingerprint feature information is sent out
Give the subscriber authentication module；The fingerprint feature information is sent to the processor module by the subscriber authentication module,
The processor module sends external authentication equipment for the fingerprint feature information by the communication interface modules and uses
Family certification.
8. security control chip as claimed in claim 5, which is characterized in that
The subscriber authentication module is connect with vocal print acquisition module, and the vocal print acquisition module is used to acquire the sound of user, will
The sound of acquisition carries out numeralization processing by preset vocal print algorithm, obtains vocal print feature information, and vocal print feature information is sent out
Give the subscriber authentication module；The vocal print feature information is sent to the processor module by the subscriber authentication module,
The processor module sends external authentication equipment for the fingerprint feature information by the communication interface modules and uses
Family certification.
9. security control chip as claimed in claim 5, which is characterized in that
The subscriber authentication module is connect with facial acquisition module；The face acquisition module is for obtaining face figure to be identified
Picture extracts the face characteristic to be identified in the facial image to be identified, the face characteristic to be identified is sent to described
Subscriber authentication module；The face characteristic is sent to the processor module, the processor die by the subscriber authentication module
Block sends external authentication equipment for the face characteristic by the communication interface modules and carries out user authentication.
10. security control chip as claimed in claim 5, which is characterized in that
The subscriber authentication module is connect with GPS module；The GPS module believes GPS location for obtaining GPS position information
Breath is sent to the subscriber authentication module, and the GPS position information is sent to the processor die by the subscriber authentication module
Block, the processor module send external authentication equipment for the GPS position information by the communication interface modules.
11. security control chip as claimed in claim 5, which is characterized in that
The communication interface modules and the communication mode of the external authentication equipment include: wifi, Ethernet, 4G；The outside
Authenticating device includes: printing Central Management Server.
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| CN201710789267.7A CN109426461A (en) | 2017-09-05 | 2017-09-05 | A kind of printer security control chip |
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| CN201710789267.7A CN109426461A (en) | 2017-09-05 | 2017-09-05 | A kind of printer security control chip |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111614859A (en) * | 2020-05-18 | 2020-09-01 | 珠海奔图电子有限公司 | Image forming apparatus, security control method thereof, and storage medium |
| CN113157223A (en) * | 2021-04-27 | 2021-07-23 | 天津光电久远科技有限公司 | Cross-platform official document anti-counterfeiting printing management system used in local area network |
| WO2023279798A1 (en) * | 2021-07-06 | 2023-01-12 | 珠海奔图电子有限公司 | Image forming apparatus and imaging control method therefor, and storage medium |
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| CN106126137A (en) * | 2016-08-31 | 2016-11-16 | 安徽天斯努信息技术股份有限公司 | A kind of self-help print method and apparatus |
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| CN111614859A (en) * | 2020-05-18 | 2020-09-01 | 珠海奔图电子有限公司 | Image forming apparatus, security control method thereof, and storage medium |
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Application publication date: 20190305 |