WO2009110693A1 - Unit using os and image forming apparatus using the same - Google Patents
Unit using os and image forming apparatus using the same Download PDFInfo
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- WO2009110693A1 WO2009110693A1 PCT/KR2009/000895 KR2009000895W WO2009110693A1 WO 2009110693 A1 WO2009110693 A1 WO 2009110693A1 KR 2009000895 W KR2009000895 W KR 2009000895W WO 2009110693 A1 WO2009110693 A1 WO 2009110693A1
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- unit
- image forming
- forming apparatus
- cpu
- authentication
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Abstract
Description
General Information | |
OS VersionSPL-C VersionEngine VersionUSB Serial NumberSet ModelService Start Date | CLP300_V1.30.12.35 02-22-20075.24 06-28-20066.01.00(55)BH45BAIP914466B.DOM2007-09-29 |
Option | |
RAM SizeEEPROM SizeUSB Connected (High) | 32 Mbytes4096 bytes |
Consumables Life | |
Total Page CountFuser LifeTransfer Roller LifeTray1 Roller LifeTotal Image CountImaging Unit/Deve Roller LifeTransfer Belt LifeToner Image Count | 774/93 Pages(Color/mono)1636 Pages864 Pages867 Pages3251 Images61 Images/19 Pages3251 Images14/9/14/19 Images(C/M/Y/K) |
Toner Information | |
Toner Remains PercentToner Average Coverage | 99%/91%/92%/100% (C/M/Y/K)5%/53%/31%/3% (C/M/Y/K) |
Consumables Information | |
Cyan TonerMagenta TonerYellow TonerBlack TonerImaging unit | SAMSUNG(DOM)SAMSUNG(DOM)SAMSUNG(DOM)SAMSUNG(DOM)SAMSUNG(DOM) |
Color Menu | |
Custom Color | Manual Adjust(CMYK : 0,0,0,0) |
Setup Menu | |
Power SaveAuto ContinueAltitude Adj. | 20 MinutesOnPlain |
Claims (49)
- A chip which is mountable on a replaceable unit used in an image forming apparatus, the chip comprising:a central processing unit (CPU) with an operating system (OS) of the CPU, which operates separately from an OS of the image forming apparatus, to perform authentication communication with the main body of the image forming apparatus using the OS of the CPU.
- The chip as claimed in claim 1, wherein the CPU performs initialization using the OS of the CPU, operating separately from the main body of the image forming apparatus.
- The chip as claimed in claim 2, wherein the initialization includes at least one task from among initial driving of application programs, calculation of secret information required for data communication with the main body of the image forming apparatus after the initialization, communication channel set-up, initialization of memory values, checking of its own replacement period, setting of internal register values, and setting of internal/external clock signals.
- The chip as claimed in claim 1, wherein the CPU performs cryptographic data communication when the authentication is completed.
- The chip as claimed in claim 1, wherein, when an authentication request is received from the main body of the image forming apparatus, the CPU generates message authentication code (MAC) and transmits the generated MAC and unique digital signature information to the main body of the image forming apparatus.
- The chip as claimed in claim 1, wherein, when an authentication request and a first random value are received from the main body of the image forming apparatus, the CPU generates a second random value independently and generates a session key using the first random value, and after generating a message authentication code (MAC) using the generated session key, the CPU transmits the generated MAC, the second random value, and the unique digital signature information to the main body of the image forming apparatus.
- The chip as claimed in claim 2, wherein, when the image forming apparatus is powered on, or when a replacement unit with the chip is mounted on the image forming apparatus, the CPU performs the initialization according to the OS of the CPU, and the CPU does not respond to a command from the main body of the image forming apparatus before the initialization is completed, and the CPU performs the authentication when the initialization is completed.
- The chip as claimed in claim 1, further comprising:a memory unit to store information regarding at least one of the chip, a replaceable unit, a customer replaceable unit monitoring memory (CRUM) unit mounted on the replaceable unit in which the chip is able to be mounted, and the OS of the CPU.
- The chip as claimed in claim 8, wherein the OS of the CPU drives at least one of the chip, the CRUM unit, and the replaceable unit, and the OS of the CPU comprises software that executes at least one of an initialization operation to independently initialize one state of the chip, the CRUM unit, and the replaceable unit, a processing operation to execute a public cryptographic algorithm, and a mutual authentication operation with the main body of the image forming apparatus.
- The chip as claimed in claim 8, further comprising:a tamper detector to respond to physical hacking attempts; anda crypto unit to allow the CPU to perform the authentication on the main body of the image forming apparatus by applying the preset cryptographic algorithm among a plurality of cryptographic algorithms.
- The chip as claimed in claim 8, wherein the cryptographic algorithm applied to the authentication is changeable.
- The chip as claimed in claim 8, wherein the CPU receives values of degrees of consumables used for the image forming job from the main body of the image forming apparatus, when the image forming job is executed using the replaceable unit, and the CPU adds the values to the information on the use of consumables stored in the memory unit, and then refreshes the information on the use of consumables stored in the memory unit.
- A customer replaceable unit monitoring memory (CRUM) unit which can be used for an image forming apparatus, the CRUM unit comprising:a memory unit to store information regarding a unit on which the CRUM unit is mounted; anda CPU to manage the memory unit using an operating system (OS) of the CPU, which operates separately from an OS of the image forming apparatus, and to perform authentication communication with the main body of an image forming apparatus.
- The CRUM unit as claimed in claim 13, wherein the CPU performs initialization using the OS of the CPU, and operates separately from the main body of the image forming apparatus.
- The CRUM unit as claimed in claim 14, wherein the initialization includes at least one task from among initial driving of application programs, calculation of secret information required for data communication with the main body of the image forming apparatus after the initialization, communication channel set-up, initialization of memory values, checking of its own replacement period, setting of internal register values, and setting of internal/external clock signals.
- The CRUM unit as claimed in claim 13, wherein the OS of the CPU drives the CRUM unit or the replaceable unit including the CRUM unit, and the OS of the CPU comprises software that executes at least one of an initialization operation to independently initialize the state of the CRUM unit or the replaceable unit, a processing operation to execute a public cryptographic algorithm, and a mutual authentication operation with the main body of the image forming apparatus.
- The CRUM unit as claimed in claim 13, wherein the CPU performs the authentication, and performs cryptographic data communication when the authentication is completed.
- The CRUM unit as claimed in claim 13, wherein, when an authentication request is received from the main body of the image forming apparatus, the CPU generates a message authentication code (MAC) and transmits the generated MAC and unique digital signature information to the main body of the image forming apparatus.
- The CRUM unit as claimed in claim 13, wherein, when an authentication request and a first random value are received from the main body of the image forming apparatus, the CPU generates a second random value independently and generates a session key using the first random value, and after generating a message authentication code (MAC) using the generated session key, the CPU transmits the generated MAC, the second random value, and the unique digital signature information to the main body of the image forming apparatus.
- The CRUM unit as claimed in claim 13, wherein, when the image forming apparatus is powered on, or when a replacement unit mounted with the CRUM unit is mounted on the image forming apparatus, the CPU performs the initialization, and does not respond to a command from the main body of the image forming apparatus before the initialization is completed.
- The CRUM unit as claimed in claim 13, further comprising:an interface unit to connect the image forming apparatus to the CPU;a tamper detector to respond to physical hacking attempts; anda crypto unit to allow the CPU to perform the authentication on the image forming apparatus by applying the preset cryptographic algorithm among a plurality of cryptographic algorithms.
- The CRUM unit as claimed in claim 13, wherein the cryptographic algorithm applied to the authentication is changeable.
- The CRUM unit as claimed in claim 13, wherein the CPU receives values of degrees of consumables used for the image forming job when the image forming job is executed, from the main body of the image forming apparatus, and the CPU adds the values to the information on the use degree of consumables stored in the memory unit, and then refreshes the information on the use degree of consumables stored in the memory unit.
- A replaceable unit which is mounted to be used in an image forming job, the replaceable unit comprising:a memory unit to store information on the replaceable unit; anda CPU to manage the memory unit using an operating system (OS) of the CPU, wherein the CPU operates separately from an OS of the image forming apparatus, and to perform authentication on the main body of an image forming apparatus.
- The replaceable unit as claimed in claim 24, wherein the CPU performs initialization using the OS of the CPU, and operates separately from the main body of the image forming apparatus.
- The replaceable unit as claimed in claim 25, wherein the initialization includes at least one task from among initial driving of application programs, calculation of secret information required for data communication with the main body of the image forming apparatus after the initialization, communication channel set-up, initialization of memory values, checking of its own replacement period, setting of internal register values, and setting of internal/external clock signals.
- The replaceable unit as claimed in claim 24, wherein the OS of the CPU drives the replaceable unit, and the OS of the CPU comprises software that executes at least one of an initialization operation to independently initialize the state of the replaceable unit, a processing operation to execute a public cryptographic algorithm, and a mutual authentication operation with the main body of the image forming apparatus.
- The replaceable unit as claimed in claim 24, wherein the CPU performs the cryptographic data communication when the authentication between the main body of the image forming apparatus and the replaceable unit is completed.
- The replaceable unit as claimed in claim 24, wherein, when an authentication request is received from the main body of the image forming apparatus, the CPU generates a message authentication code (MAC) and transmits the generated MAC and unique digital signature information to the main body of the image forming apparatus.
- The replaceable unit as claimed in claim 24, wherein, when an authentication request and a first random value are received from the main body of the image forming apparatus, the CPU generates a second random value independently and generates a session key using the first random value, and after generating a message authentication code (MAC) using the generated session key, the CPU transmits the generated MAC, the second random value, and the unique digital signature information to the main body of the image forming apparatus.
- The replaceable unit as claimed in claim 24, wherein, when the image forming apparatus is powered on, or when the replaceable unit is mounted on the image forming apparatus, the CPU performs the initialization according to the OS of the CPU, and does not respond to a command from the main body of the image forming apparatus before the initialization is completed.
- The replaceable unit as claimed in claim 24, further comprising:an interface unit to connect the image forming apparatus to the CPU;a tamper detector to respond to physical hacking attempts; anda crypto unit to allow the CPU to perform the authentication or the cryptographic data communication with the image forming apparatus by applying the set cryptographic algorithm among a plurality of cryptographic algorithms.
- The replaceable unit as claimed in claim 24, wherein the cryptographic algorithm applied to the authentication is changeable.
- The replaceable unit as claimed in claim 24, wherein the CPU receives values of degrees of consumables used for the image forming job when the image forming job is executed, from the main body of the image forming apparatus, and the CPU adds the values to the information on the use degree of consumables stored in the memory unit, and then refreshes the information on the use degree of consumables stored in the memory unit.
- An image forming apparatus, comprising:a main controller; andat least one unit which comprises a memory unit to store information and a CPU to manage the memory unit using an operating system (OS) of the CPU, operating separately from an OS of the main controller, and to perform at least one of authentication and cryptographic data communication with the main controller.
- The image forming apparatus as claimed in claim 35, wherein the CPU performs initialization using the OS of the CPU, and operates separately from the main controller.
- The image forming apparatus as claimed in claim 36, wherein the initialization includes at least one task from among initial driving of application programs, calculation of secret information required for data communication with the main body of the image forming apparatus after the initialization, communication channel set-up, initialization of memory values, checking of its own replacement period, setting of internal register values, and setting of internal/external clock signals.
- The image forming apparatus as claimed in claim 35, wherein the at least one unit performs the authentication on the main controller using a preset cryptographic algorithm, the cryptographic algorithm being changeable.
- The image forming apparatus as claimed in claim 35, wherein the main controller requests authentication to the CPU of the at least one unit, and when digital signature information and a MAC are transmitted from the CPU, the main controller detects the digital signature information and the MAC to perform the authentication.
- The image forming apparatus as claimed in claim 35, wherein the main controller generates a first random value and then transmits the first random value and an authentication request to the CPU of the at least one unit, detects digital signature information when the digital signature information is received, receives a first MAC and a second random value from the CPU in response to the authentication request, independently generates a session key and a second MAC using the first and second random values, and compares and detects the generated second MAC and the received first MAC.
- The image forming apparatus as claimed in claim 35, wherein the main controller receives the unique digital signature information set for each unit of the at least one unit and performs the authentication, and performs the cryptographic data communication with the respective CPUs of each unit when the authentication has succeeded.
- The image forming apparatus as claimed in claim 35, wherein the main controller performs the authentication by applying a RSA asymmetric key algorithm and one of ARIA, TDES, SEED and AES symmetric key algorithms, and the CPU of the unit performs the authentication by applying one of the ARIA, TDES, SEED, AES symmetric key algorithms.
- The image forming apparatus as claimed in claim 35, wherein the unit further comprises:a crypto unit to allow the CPU to perform the authentication or the cryptographic data communication with the main controller of the image forming apparatus by applying the set cryptographic algorithm among a plurality of cryptographic algorithms; anda tamper detector to respond to physical hacking attempts.
- The image forming apparatus as claimed in claim 35, wherein the main controller is connected to the at least one unit through one serial I/O channel, and is accessed to the at least one unit using individual addresses given to each unit.
- The image forming apparatus as claimed in claim 35, wherein when the job is executed, the main controller measures values of degrees of consumables used for the job, transmits the measured values to each CPU of the at least one unit, and the CPU adds the values to the information on the use degree of consumables pre-stored in each CPU, and then refreshes the information on the use degree of consumables stored in the memory unit.
- The image forming apparatus as claimed in claim 35, wherein the OS of the CPU drives the unit, and the OS of the CPU comprises software that executes at least one of an initialization operation, a processing operation to execute a public cryptographic algorithm, and a mutual authentication operation with the main body of the image forming apparatus.
- The image forming apparatus as claimed in claim 35, wherein the unit is one of a replaceable unit directly associated with an image forming job of the image forming apparatus, a CRUM unit mountable on the replaceable unit, and a chip mountable on the CRUM unit.
- A computer readable medium to contain computer-readable codes as a program to perform a method, the method comprising:performing authentication communication with a main body of an image forming apparatus using an operating system (OS) of a central processing unit (CPU), which operates separately from an OS of the image forming apparatus.
- A chip which is mountable on a replaceable unit used in an image forming apparatus, the chip comprising:a central processing unit (CPU) with an operating system (OS) of the CPU, which operates separately from an OS of the image forming apparatus, to perform authentication communication with a main body of an image forming apparatus, using the OS of the CPU; anda memory unit to store information regarding at least one of the chip, a customer replaceable unit monitoring (CRUM) unit, a replaceable unit with the CRUM unit, and the OS of the CPU,wherein the OS of the CPU is provided in the memory unit within the chip or in memory external to the chip.
Priority Applications (2)
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EP09716482A EP2250600A4 (en) | 2008-03-03 | 2009-02-25 | Unit using os and image forming apparatus using the same |
BRPI0909684A BRPI0909684A2 (en) | 2008-03-03 | 2009-02-25 | unit using them and image maker using the same |
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KR1020080063071A KR101012398B1 (en) | 2008-03-03 | 2008-06-30 | Module for using O/S and image forming device for using it |
KR10-2008-0063071 | 2008-06-30 |
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PCT/KR2009/000892 WO2009110691A1 (en) | 2008-03-03 | 2009-02-25 | Unit using operating system and image forming apparatus using the same |
PCT/KR2009/000894 WO2009110692A1 (en) | 2008-03-03 | 2009-02-25 | Unit using os and image forming apparatus using the same |
PCT/KR2009/000895 WO2009110693A1 (en) | 2008-03-03 | 2009-02-25 | Unit using os and image forming apparatus using the same |
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PCT/KR2009/000892 WO2009110691A1 (en) | 2008-03-03 | 2009-02-25 | Unit using operating system and image forming apparatus using the same |
PCT/KR2009/000894 WO2009110692A1 (en) | 2008-03-03 | 2009-02-25 | Unit using os and image forming apparatus using the same |
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EP (4) | EP2250603A4 (en) |
KR (7) | KR101012398B1 (en) |
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BR (4) | BRPI0907869A2 (en) |
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