WO2012043240A1 - 使用機器、制御方法及びプログラム - Google Patents
使用機器、制御方法及びプログラム Download PDFInfo
- Publication number
- WO2012043240A1 WO2012043240A1 PCT/JP2011/071005 JP2011071005W WO2012043240A1 WO 2012043240 A1 WO2012043240 A1 WO 2012043240A1 JP 2011071005 W JP2011071005 W JP 2011071005W WO 2012043240 A1 WO2012043240 A1 WO 2012043240A1
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- WIPO (PCT)
- Prior art keywords
- remaining amount
- recording area
- consumable
- consumables
- state
- Prior art date
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
- G06K15/40—Details not directly involved in printing, e.g. machine management, management of the arrangement as a whole or of its constitutive parts
- G06K15/407—Managing marking material, e.g. checking available colours
- G06K15/4075—Determining remaining quantities of ink or toner
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- 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
- B41J17/00—Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper
- B41J17/36—Alarms, indicators, or feed-disabling devices responsible to material breakage or exhaustion
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- 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
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- 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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- 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
- B41J35/00—Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
- B41J35/36—Alarms, indicators, or feed disabling devices responsive to ink ribbon breakage or exhaustion
Definitions
- the present invention relates to a technique for preventing unauthorized use of consumables.
- consumables are generally recycled after being recycled at a genuine recycling factory recommended by the manufacturer.
- the current situation is that there are illegal consumables (illegal products) that are not genuine consumables (genuine products) recommended by manufacturers.
- Unauthorized products are made of lower quality materials than genuine products. For example, if unauthorized products are used in an image forming apparatus, it may cause an event such as a decrease in print quality or failure of the image forming apparatus. Depending on the situation, there is a case where the trader who manufactures / sells the equipment used such as the image forming apparatus is responsible, not the trader who manufactures / sells the consumables.
- Patent Document 1 discloses a technique for prohibiting the use of pirated consumables or illegally refilled consumables related to an image forming apparatus. Is disclosed.
- count data 60 for counting the number of printed sheets is stored in the storage area of the RFID sheet 33 without setting a lock bit.
- the count data 60 is encrypted and stored, and when the count data 60 is read, the encryption algorithm is reversely followed for decryption. If the count data 60 stored in the RFID sheet 33 greatly exceeds a certain printable number of sheets, it is determined that the toner is improperly replenished, and use is prohibited. This prohibits the use of consumables that have been illegally replenished with toner. If the toner is replenished properly, the count data 60 is set as an initial value and stored in the storage area of the RFID sheet 33.
- the count data 60 for counting the number of printed sheets is encrypted and stored in the storage area of the RFID sheet 33.
- the encryption algorithm has been decrypted, the count data 60 can be easily rewritten.
- the present invention has been made in view of the above circumstances, and can be used to prevent unauthorized rewriting of the remaining amount of consumables without using encryption, and to prevent unauthorized use of consumables, a control method, and
- the purpose is to provide a program.
- the present invention has the following features.
- the equipment used according to the present invention is: Equipment that uses consumables, The consumable is detachable from the device in use, the consumable has a memory, and the memory has a first recording area in which a remaining amount of the consumable is recorded in a rewritable manner, and the first A plurality of second recording areas for specifying the state of the remaining amount of the consumables recorded in the recording area,
- the equipment used is In accordance with the remaining amount of the consumables recorded in the first recording area, the second recording area is set from a writable state to a write-inhibited state and recorded in the first recording area.
- the control method includes: A control method that is performed by a device that uses consumables, The consumable is detachable from the device in use, the consumable has a memory, and the memory has a first recording area in which a remaining amount of the consumable is recorded in a rewritable manner, and the first A plurality of second recording areas for specifying the state of the remaining amount of the consumables recorded in the recording area,
- the equipment used is In accordance with the remaining amount of the consumables recorded in the first recording area, the second recording area is set from a writable state to a write-inhibited state and recorded in the first recording area.
- the program according to the present invention is: A program to be executed by a computer of a device that uses consumables, The consumable is detachable from the device in use, the consumable has a memory, and the memory has a first recording area in which a remaining amount of the consumable is recorded in a rewritable manner, and the first A plurality of second recording areas for specifying the state of the remaining amount of the consumables recorded in the recording area, In the computer, In accordance with the remaining amount of the consumables recorded in the first recording area, the second recording area is set from a writable state to a write-inhibited state and recorded in the first recording area.
- unauthorized rewriting of the remaining amount of consumables can be prevented without using encryption, and unauthorized use of consumables can be prevented.
- FIG. 1 is a diagram illustrating a configuration example of an image forming apparatus 100 that is an example of a device 100 used in the present embodiment.
- 3 is a diagram showing an example data configuration of an RFID tag (memory) 201.
- FIG. FIG. 6 is a diagram illustrating data recorded in an RFID tag (memory) 201 and a lock flag state when the ink ribbon 200 is in a new state. 6 is a diagram illustrating an example of updating the remaining amount of ink in an RFID tag (memory) 201.
- FIG. 6 is a diagram illustrating an example of update processing of a lock flag of an RFID tag (memory) 201.
- FIG. 6 is a diagram illustrating an example of information managed by a storage unit 102.
- FIG. 6 is a diagram illustrating an example of falsification detection processing of the remaining amount of ink in the RFID tag (memory) 201.
- FIG. FIG. 6 is a diagram showing a state of the RFID tag 201 after the film of the ink ribbon 200 has been used for 45 meters from the new state.
- FIG. 6 is a view showing a state of the RFID tag 201 after the film of the ink ribbon 200 has been used for 96 meters from the new state.
- FIG. 1 shows a configuration example of an image forming apparatus 100 which is an example of a device 100 used in the present embodiment
- FIG. 8 shows a state in the memory 201 of a consumable 200.
- the used device 100 of the present embodiment is a used device that uses the consumable 200, and the consumable 200 of the present embodiment is detachable from the used device 100.
- the consumable 200 has a memory 201, and As shown in FIG. 8, the memory 201 is recorded in a first recording area (block number 1) and a first recording area (block number 1) in which the remaining amount of the consumables 200 is recorded in a rewritable manner. And a plurality of second recording areas (block numbers 2 to 12) for specifying the remaining state of the consumables 200.
- the using device 100 of the present embodiment is set from writable to write-inhibited, and the remaining amount (55) of consumables 200 recorded in the first recording area (block number 1) is write-inhibited.
- the second recording area (block number 2 to 12) so as to be positioned between the second recording area (block number 5) of the second recording area (block number 6) and the writable second recording area (block number 6) Set the state.
- the remaining amount (55) of the consumable item 200 recorded in the first recording area (block number 1) is read, and the read remaining amount (55) of the consumable item 200 is in a write-protected state. It is determined whether it is located between the recording area (block number 5) and the second recording area (block number 6) in a writable state, and the remaining amount (55) of the consumable 200 is If the consumable item 200 is located between them, it is determined that the consumable item 200 is a genuine item, and if the remaining amount (55) of the consumable item 200 is not located between the above, the consumable item 200 is determined to be an unauthorized item.
- the use device 100 of the present embodiment will be described in detail with reference to the accompanying drawings.
- the image forming apparatus 100 which is an example of the used device 100, will be described as an example.
- An image forming apparatus 100 is a device that uses a consumable 200 containing ink, toner, and the like, and includes a control unit 101, a storage unit 102, and a reader / writer 103. .
- the control unit 101 controls the image forming apparatus 100.
- the storage unit 102 stores various information necessary when using the image forming apparatus 100.
- the reader / writer 103 records various information in a memory 201 provided in the consumable 200, and reads various information recorded in the memory 201. In the present embodiment, the reader / writer 103 is described as an RFID reader / writer.
- the consumable item 200 stores toner, ink, and the like used when an image is formed by the image forming apparatus 100, and includes a memory 201.
- the memory 201 stores various types of information for managing the consumable item 200. In the present embodiment, the memory 201 is described as an RFID tag.
- the image forming apparatus 100 is replaceable by removing the consumable 200 from the image forming apparatus 100.
- the RFID reader / writer 103 When the consumable 200 is correctly set in the image forming apparatus 100, the RFID reader / writer 103 and Then, wireless communication is performed with the RFID tag 201, and the RFID reader / writer 103 reads information recorded in the RFID tag 201 or records information in the RFID tag 201.
- the RFID tag 201 is composed of memory blocks as shown in FIG.
- the memory block shown in FIG. 2 is assigned a block number for each predetermined data area (4 bytes; 32 bits in FIG. 2).
- Each block has a lock flag.
- the lock flag is a flag indicating a state where data can be written to the data area or a state where data cannot be written to the data area. For example, when the lock flag is 0, it is determined that data can be written to the data area, and when the lock flag is 1, it is determined that data cannot be written to the data area.
- the lock flag cannot be returned to a writable state once it is in a write-inhibited state.
- the remaining amount of ink in the new ink ribbon 200 is recorded in the RFID tag 201 provided on the new ink ribbon 200.
- the remaining amount of ink in the ink ribbon 200 will be described using the length of the ink ribbon 200 film.
- the remaining amount of ink can be specified using various methods, and is not limited to the length of the film.
- FIG. 3 shows data recorded on the RFID tag 201 and the state of the lock flag when the ink ribbon 200 is in a new state.
- FIG. 3 shows an example in which the range of block numbers 1 to 12 is used.
- Example of ink remaining amount update for RFID tag 201 When the printing operation is started using the ink ribbon 200 having the RFID tag 201, the image forming apparatus 100 starts the processing operation illustrated in FIG. 4 and updates the remaining amount of ink recorded in the RFID tag 201. .
- control unit 101 of the image forming apparatus 100 reads the remaining amount of ink recorded in the data area of the block number 1 of the RFID tag 201 (step A1).
- control unit 101 calculates the amount of ink used in the ink ribbon 200 used in the printing operation (step A2).
- the amount of ink used in the ink ribbon 200 can be obtained by determining the length of the ink ribbon 200 film used during the printing operation.
- control unit 101 subtracts the calculated ink use amount from the ink remaining amount read from the data area of the block number 1 of the RFID tag 201 to update the ink remaining amount of the ink ribbon 200 (step S1). A3). Then, the control unit 101 records the updated ink remaining amount in the data area of block number 1 of the RFID tag 201 (step A4). As a result, the control unit 101 determines the remaining amount of ink recorded in the data area of the block number 1 of the RFID tag 201 based on the amount of ink used in the ink ribbon 200 used for the printing operation. Can be updated.
- the RFID tag 201 is a non-volatile memory, even if the image forming apparatus 100 is turned off, the data remains without being erased. Therefore, when the image forming apparatus 100 is turned on, the control unit 101 can read the data recorded in the RFID tag 201.
- the control unit 101 starts the processing operation shown in FIG. 5 every time the remaining amount of ink recorded in the data area of the block number 1 of the RFID tag 201 is updated, and sets the block number corresponding to the remaining amount of ink. Set the lock flag to write-protect and update the lock flag.
- control unit 101 refers to the RFID tag 201 and identifies from the RFID tag 201 the block number having the smallest number (except for block number 1) among the block numbers in which the lock flag can be written. . Then, the lock threshold value corresponding to the specified block number is specified (step B1).
- the lock threshold value is a threshold value for determining whether or not to write-protect the lock flag of the RFID tag 201.
- the block number, the role of the block number, and the lock threshold value are determined.
- the role of the block number is to grasp the role of the block number.
- the role of the block number is to record the remaining amount of ink on the ink ribbon 200.
- the lock flag has a role of prohibiting writing.
- the lock flag has a role of prohibiting writing.
- the lock flag has a role of prohibiting writing.
- the lock flag is write-protected. have.
- the amount of ink used in the ink ribbon 200 can be calculated using the above-described film length.
- the fact that the remaining amount of physical ink on the ink ribbon 200 has become zero indicates that the rotary encoder using the rotary encoder that rotates together with the shaft of the ink ribbon 200 and the sensor that counts the rotary encoder is used. By detecting that the rotation of the shaft has stopped based on the count value, it is possible to detect that the physical ink remaining amount of the ink ribbon 200 has become zero.
- the control unit 101 refers to the information shown in FIG. 6 managed by the storage unit 102, and identifies the lock threshold value corresponding to the block number identified from the RFID tag 201 from the storage unit 102.
- the control unit 101 compares the lock threshold specified from the storage unit 102 with the updated ink remaining amount, and determines whether or not the updated ink remaining amount is smaller than the lock threshold (step B2). . If the ink remaining after the update is smaller than the lock threshold (step B2 / Yes), the block flag corresponding to the lock threshold is set to write-protection and the block number next to the block-number that has been write-prohibited is set. A lock threshold value corresponding to the block number is specified from the storage unit 102 (step B3). Then, it is determined again whether or not the updated ink remaining amount is smaller than the lock threshold (step B2).
- step B2 / No If the remaining amount of ink after the update is not smaller than the lock threshold value (step B2 / No), the process ends (End).
- the corresponding lock threshold (90) is compared (step B2), and the remaining ink level (90) is equal to or less than the lock threshold (90) (step B2 / Yes).
- the lock flag of the corresponding block number 2 is set to write prohibition (step B3). Also, the updated ink remaining amount (90) is compared with the lock threshold value (80) corresponding to block number 3 next to block number 2 that has been write-protected (step B2), and the ink remaining amount ( 90) is not less than or equal to the lock threshold (80) (step B2 / No), the process is terminated (End). Thereby, the lock flag of block number 2 can be set to write prohibition.
- the corresponding lock threshold (80) is compared (step B2), and the remaining ink level (65) is equal to or lower than the lock threshold (80) (step B2 / Yes).
- the lock flag of the corresponding block number 3 is set to write prohibition (step B3).
- the updated ink remaining amount (65) is compared with the lock threshold value (70) corresponding to block number 4 next to block number 3 that has been write-protected (step B2), and the ink remaining amount ( 65) is equal to or smaller than the lock threshold (70) (step B2 / Yes), the block number 4 lock flag corresponding to the lock threshold (70) is set to write prohibition (step B3).
- the ink remaining amount after update (65) is compared with the lock threshold value (60) corresponding to block number 5 next to block number 4 that has been write-protected (step B2).
- 65) is not less than or equal to the lock threshold (60) (step B2 / No), the process ends (End). Thereby, the lock flag of block numbers 3 and 4 can be set to write prohibition.
- Example of falsification detection processing of ink remaining amount of RFID tag 201 When the control unit 101 detects a predetermined condition in which the ink ribbon 200 is likely to be replaced, such as when the image forming apparatus 100 is powered on or when consumables are replaced, the control unit 101 performs the processing operation shown in FIG. It is determined whether or not the remaining amount of ink recorded in the data area of block number 1 of the RFID tag 201 is falsified.
- control unit 101 When the control unit 101 detects a predetermined condition that the ink ribbon 200 is likely to be replaced, such as when the image forming apparatus 100 is turned on or when a consumable is replaced, the control unit 101 sets the block number 1 of the RFID tag 201 of the ink ribbon 200. Read the remaining amount of ink recorded in the data area (step C1).
- the control unit 101 checks the lock flag of the block number within a predetermined range of the RFID tag 201 (step C2), and determines whether there is a block number for which the lock flag can be written (step C3). ).
- the predetermined range can be arbitrarily changed. If there is no block number for which the lock flag is writable (step C3 / No), it is determined whether there is a next block number (step C4). If there is a next block number (step C4) / Yes), the lock flag of the block number in the next predetermined range is checked (step C5). If there is no next block number (step C4 / No), the process ends (End).
- step C3 When there is a block number in which the lock flag can be written (step C3 / Yes), the control unit 101 determines that the block number having the smallest number among the block numbers in which the lock flag can be written (however, (Excluding block number 1) is specified from the RFID tag 201. Then, the lock threshold value corresponding to the specified block number is specified from the storage unit 102 (step C6).
- the control unit 101 compares the lock threshold specified from the storage unit 102 with the ink remaining amount, and determines whether or not the ink remaining amount is larger than the lock threshold (step C7).
- the lock threshold corresponding to the block number before the block number corresponding to the lock threshold is specified from the storage unit 102 (Step C8), and the storage unit
- the lock threshold specified from 102 is compared with the ink remaining amount to determine whether the ink remaining amount is smaller than the lock threshold (step C9).
- step C9 If the ink remaining amount is smaller than the lock threshold (step C9 / Yes), it is determined that there is ink remaining between the block number in which the lock flag is writable and the block number in which the lock flag is writable. Then, it is determined that the remaining amount of ink of block number 1 has not been tampered with (the ink ribbon 200 is a genuine product) (step C10), and the process ends (End).
- step C7 If it is determined in step C7 that the remaining amount of ink is smaller than the lock threshold, or if it is determined in step C9 that the remaining amount of ink is larger than the lock threshold, the block number to which the lock flag can be written and the lock flag It is determined that there is no ink remaining between the block number that is write-protected and that the ink remaining in block number 1 has been tampered (the ink ribbon 200 is illegal) (step C11), and the process ends (End).
- the control unit 101 is the highest of the remaining ink amount (100) read from the data area of block number 1 and the block number in which the lock flag can be written (excluding block number 1).
- the lock threshold value (90) corresponding to the block number 2 with a smaller number is compared, and the remaining amount of ink (100) is larger than the lock threshold value (90), so the block number 2 corresponding to the lock threshold value (90)
- the lock threshold value corresponding to the previous block number 1 is specified.
- the block number 1 records the remaining amount of ink, in this case, it is determined that the ink ribbon 200 is a genuine product.
- the control unit 101 reads the remaining amount of ink (55) from the data area of the block number 1 (step C1), the lock flags of block numbers 2 to 12 in a predetermined range are checked (step C2).
- the control unit 101 is continuously prohibited from writing to block numbers 2 to 5, and block numbers 6 to 12 are writable (step C3 / Yes), so the lock flag is writable.
- the lock threshold value (50) corresponding to the block number 6 having the smallest number among the block numbers 6 to 12 is compared with the remaining amount of ink (55) (steps C6 and C7). Since the remaining amount of ink (55) is larger than the lock threshold value (50) (remaining amount 55> lock threshold value 50) (step C7 / Yes), the block number 6 corresponding to the lock threshold value (50) is one before the block number 6.
- a lock threshold (60) corresponding to block number 5 is specified (step C8).
- the lock threshold value (60) corresponding to the previous block number 5 is compared with the ink remaining amount (55) (step C9).
- the ink remaining amount (55) since the ink remaining amount (55) is smaller than the lock threshold value (60) (step C9 / Yes), the ink remaining amount (55) includes the block number 6 in which the lock flag is writable and the lock flag. Is determined to be present between block number 5 in a write-inhibited state and the remaining ink level (55) of block number 1 is determined not to have been tampered (the ink ribbon 200 is a genuine product) ( Step C10).
- the remaining amount of ink in block number 1 has been altered to the initial state (100).
- the ink remaining amount (100) of block number 1 is larger than the lock threshold value (50) corresponding to block number 6 (remaining amount 100> lock threshold value 50) (step C7 / Yes), one before.
- the lock threshold value (60) corresponding to the block number 5 is compared with the ink remaining amount (100) (step C9).
- the remaining amount of ink (100) includes the block number 6 in which the lock flag is writable and the lock flag.
- Step C11 If it is determined that the remaining amount of ink has been tampered (the ink ribbon 200 is an illegal product), an error notification is given or a notification is made that the ink ribbon is an illegal product so that no printing operation is performed. To control.
- the remaining amount of ink recorded in the data area of block number 1 is significantly altered, the remaining amount of ink after the alteration is the block number in which the lock flag can be written, Since the lock flag does not exist between the block number in which writing is prohibited and it is detected as an illegal product, falsification of the remaining amount of ink can be suppressed. Note that, by narrowing the interval of the lock threshold, it is possible to accurately detect whether the remaining amount of ink has been tampered with.
- the state of the RFID tag 201 after the printing operation of the image forming apparatus 100 is further repeated from the state shown in FIG. 8 and the film of the ink ribbon 200 is used for 96 meters from the new state is shown in FIG.
- the lock flags of block numbers 2 to 11 are prohibited from being written, and the remaining amount of ink of block number 1 is 4 (100-96). Since the ink remaining amount of the ink ribbon 200 in the initial state is 100 meters, the net ink remaining amount is 4 meters.
- the RFID tag 201 of the ink ribbon 200 is removed, and the remaining amount (4) of the ink with the block number 1 of the RFID tag 201 is directly attached to the illegal ink ribbon without alteration.
- the remaining amount (4) of the ink of block number 1 has not been tampered with, even if the processing operation shown in FIG. Can be used in.
- the processing operation shown in FIG. 4 is performed, so that the remaining amount of ink in the data area of block number 1 is updated to 0, and the control unit 101 performs the processing operation shown in FIG. By doing this, the lock flag of the block number 12 is set to write prohibition.
- the control unit 101 considers that the ink ribbon 200 has been used to the end, and stops the printing operation. As a result, even when the RFID tag 201 of the genuine ink ribbon 200 is removed and the RFID tag 201 is attached to an unauthorized product and used, the use of the unauthorized product can be minimized.
- the image forming apparatus 100 records and manages the remaining amount of ink on the ink ribbon 200 on the RFID tag 201, and updates the remaining amount of ink recorded on the RFID tag 201 each time.
- the lock flag of the block number up to the lock threshold value corresponding to the remaining amount of ink after the update is set from writable to write prohibited.
- the control unit 101 detects the remaining amount of ink recorded in the RFID tag 201, the lock flag of each block number of the RFID tag 201, and If the ink remaining amount is located between the block number in the write-inhibited state and the block number in the writable state, it is determined that the ink ribbon 200 is a genuine product, and the ink If the remaining amount of the ink ribbon is not between the block number in which writing is prohibited and the block number in which writing is possible, it is determined that the ink ribbon 200 is an illegal product. Thereby, unauthorized rewriting of the remaining amount of the ink ribbon 200 can be prevented, and unauthorized use of the ink ribbon 200 can be prevented.
- the ink ribbon 200 used in the image forming apparatus 100 is designed so as to optimize the print quality and not cause any trouble in the image forming apparatus 100.
- the print quality may be deteriorated or the image forming apparatus 100 may be hindered.
- the image forming apparatus 100 manages the remaining amount of ink on the ink ribbon 200 using the RFID tag 201 provided on the ink ribbon 200, and can write a lock flag according to the remaining amount of ink. Since the state is set to a write-inhibited state and unauthorized use of the ink ribbon 200 can be prevented as much as possible, the occurrence of the above-described problems can be reduced.
- the net remaining amount (100) filled in the ink ribbon 200 is recorded as an initial value in the data area of block number 1 as shown in FIG.
- the net remaining amount (100) varies in manufacturing, and an error also occurs when calculating the amount of ink ribbon 200 used.
- the image forming apparatus 100 has a mechanism for detecting that the ink remaining amount of the ink ribbon 200 is physically exhausted. For example, by detecting that the rotation of the shaft has stopped based on the count value of the rotary encoder using a rotary encoder that rotates together with the shaft of the ink ribbon 200 and a sensor that counts the rotary encoder, It can be detected that the remaining amount of ink on the ink ribbon 200 is physically exhausted.
- the information recorded in the RFID tag 201 can be copied to another RFID tag, and the copied RFID tag can be prevented from being attached to an unauthorized ink ribbon. Can not. That is, it is not possible to prevent the RFID tag 201 from being copied. For this reason, in this embodiment, duplication of the RFID tag 201 is prevented by using identification information that can uniquely identify the RFID tag 201.
- a unique ID that can uniquely identify the chip is written on the IC chip of the RFID tag 201.
- IC chip manufacturers guarantee that this unique ID will not be duplicated in the world.
- the unique ID is recorded on the RFID tag 201 in a state where it cannot be rewritten.
- identification information corresponding to the unique ID is generated using a unique ID and a predetermined calculation algorithm.
- the identification information is also generated corresponding to the unique ID so as not to be duplicated.
- the identification information is written in the RFID tag 201 when the ink ribbon is manufactured.
- the control unit 101 reads the unique ID and identification information from the RFID tag 201, and the read unique ID and the ink ribbon described above. Identification information corresponding to the unique ID is generated using a predetermined calculation algorithm at the time of manufacture. When the generated identification information and the identification information read from the RFID tag 201 match, it is determined as a genuine product, and when they do not match, it is determined as an unauthorized product.
- the identification information written in the RFID tag 201 cannot be calculated from the unique ID of the other RFID tag. Therefore, it is possible to prevent the RFID tag 201 from being copied.
- the image forming apparatus 100 records the unique identification information calculated based on the unique ID for identifying the RFID tag 201 in the RFID tag 201. Then, the unique ID and the identification information are read from the RFID tag 201, the identification information is calculated based on the read unique ID and a predetermined algorithm, the calculated identification information, and the read identification information Are determined to be genuine, and if they do not match, they are determined to be unauthorized. Thereby, the duplication act of the RFID tag 201 can be prevented.
- the image forming apparatus 100 of the above embodiment has been described by taking an ink ribbon as an example.
- the image forming apparatus 100 of the above embodiment is not limited to the ink ribbon, and the same processing can be realized using toner, ink jet, or the like.
- the method for calculating the amount of use and the remaining amount of the consumable varies depending on the type of the consumable 200, the method of calculating the amount of use and the remaining amount according to the type of the consumable 200 is used.
- the calculation method of the used amount and remaining amount of the consumable 200 is known, various known methods can be used.
- control operation in each apparatus constituting the image forming apparatus 100 in the present embodiment described above can be executed using hardware, software, or a composite configuration of both.
- the program can be recorded in advance on a hard disk or ROM (Read Only Memory) as a recording medium.
- the program can be stored (recorded) temporarily or permanently in a removable recording medium.
- a removable recording medium can be provided as so-called package software.
- the removable recording medium include a floppy (registered trademark) disk, a CD-ROM (Compact Disc Read Only Memory), an MO (Magneto optical disc), a DVD (Digital Versatile Disc), a magnetic disk, and a semiconductor memory.
- the program is installed in the computer from the removable recording medium as described above. In addition, it is wirelessly transferred from the download site to the computer. In addition, it is transferred to a computer via a network by wire.
- the image forming apparatus 100 is not only executed in time series according to the processing operation described in the above embodiment, but also in parallel with the processing capability of the apparatus that executes the process, or as necessary. Alternatively, it can be constructed to execute individually.
- the image forming apparatus 100 has been described as an example.
- the technical idea of the present embodiment can be applied to any device as long as the device 100 is equipped with a function for calculating the usage amount and remaining amount of the consumable 200.
- it can be applied to consumables such as mineral water and fuel cells. Since these consumables can also measure the amount used and the remaining amount, the technical idea of the present invention can be applied.
- Image forming device (device used) 101 Control Unit 102 Storage Unit 103 Reader / Writer (RFID Reader / Writer) 200 Consumables (ink ribbon) 201 Memory (RFID tag)
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Abstract
Description
本発明にかかる使用機器は、
消耗品を使用する使用機器であって、
前記消耗品は、前記使用機器から取り外し可能であり、前記消耗品は、メモリを有し、前記メモリは、前記消耗品の残量を書き換え可能に記録する第1の記録領域と、前記第1の記録領域に記録されている前記消耗品の残量の状態を特定する複数の第2の記録領域と、を有し、
前記使用機器は、
前記第1の記録領域に記録されている前記消耗品の残量に応じて、前記第2の記録領域を書き込み可能な状態から書き込み禁止な状態に設定し、前記第1の記録領域に記録されている前記消耗品の残量が、書き込み禁止な状態の前記第2の記録領域と、書き込み可能な状態の前記第2の記録領域と、の間に位置するように前記第2の記録領域の状態を設定する書換手段と、
前記第1の記録領域に記録されている前記消耗品の残量を読み出し、該読み出した前記消耗品の残量が、書き込み禁止な状態の前記第2の記録領域と、書き込み可能な状態の前記第2の記録領域と、の間に位置するか否かを判断し、前記消耗品の残量が前記間に位置する場合は、前記消耗品が正規品であると判断し、前記消耗品の残量が前記間に位置しない場合は、前記消耗品が不正品であると判断する制御手段と、
を有することを特徴とする。
本発明にかかる制御方法は、
消耗品を使用する使用機器で行う制御方法であって、
前記消耗品は、前記使用機器から取り外し可能であり、前記消耗品は、メモリを有し、前記メモリは、前記消耗品の残量を書き換え可能に記録する第1の記録領域と、前記第1の記録領域に記録されている前記消耗品の残量の状態を特定する複数の第2の記録領域と、を有し、
前記使用機器は、
前記第1の記録領域に記録されている前記消耗品の残量に応じて、前記第2の記録領域を書き込み可能な状態から書き込み禁止な状態に設定し、前記第1の記録領域に記録されている前記消耗品の残量が、書き込み禁止な状態の前記第2の記録領域と、書き込み可能な状態の前記第2の記録領域と、の間に位置するように前記第2の記録領域の状態を設定する書換工程と、
前記第1の記録領域に記録されている前記消耗品の残量を読み出し、該読み出した前記消耗品の残量が、書き込み禁止な状態の前記第2の記録領域と、書き込み可能な状態の前記第2の記録領域と、の間に位置するか否かを判断し、前記消耗品の残量が前記間に位置する場合は、前記消耗品が正規品であると判断し、前記消耗品の残量が前記間に位置しない場合は、前記消耗品が不正品であると判断する制御工程と、
を有することを特徴とする。
本発明にかかるプログラムは、
消耗品を使用する使用機器のコンピュータに実行させるプログラムであって、
前記消耗品は、前記使用機器から取り外し可能であり、前記消耗品は、メモリを有し、前記メモリは、前記消耗品の残量を書き換え可能に記録する第1の記録領域と、前記第1の記録領域に記録されている前記消耗品の残量の状態を特定する複数の第2の記録領域と、を有し、
前記コンピュータに、
前記第1の記録領域に記録されている前記消耗品の残量に応じて、前記第2の記録領域を書き込み可能な状態から書き込み禁止な状態に設定し、前記第1の記録領域に記録されている前記消耗品の残量が、書き込み禁止な状態の前記第2の記録領域と、書き込み可能な状態の前記第2の記録領域と、の間に位置するように前記第2の記録領域の状態を設定する書換処理と、
前記第1の記録領域に記録されている前記消耗品の残量を読み出し、該読み出した前記消耗品の残量が、書き込み禁止な状態の前記第2の記録領域と、書き込み可能な状態の前記第2の記録領域と、の間に位置するか否かを判断し、前記消耗品の残量が前記間に位置する場合は、前記消耗品が正規品であると判断し、前記消耗品の残量が前記間に位置しない場合は、前記消耗品が不正品であると判断する制御処理と、
を実行させることを特徴とする。
まず、図1、図8を参照しながら、本実施形態の使用機器100の概要について説明する。図1は、本実施形態の使用機器100の一例である画像形成装置100の構成例を示し、図8は、消耗品200のメモリ201内の状態を示す図である。
<本実施形態の画像形成装置100の構成例>
まず、図1を参照しながら、本実施形態の画像形成装置100の構成例について説明する。
次に、本実施形態の画像形成装置100の処理動作例について説明する。なお、以下の説明では、消耗品200としてインクリボンを使用する画像形成装置100を例に説明する。インクリボン200や、そのインクリボン200を使用する画像形成装置100の機構は公知のものが適用可能である。
画像形成装置100は、RFIDタグ201を有するインクリボン200を用いて印刷動作を開始した場合は、図4に示す処理動作を開始し、RFIDタグ201に記録されているインクの残量を更新する。
制御部101は、RFIDタグ201のブロック番号1のデータ領域に記録されているインクの残量を更新する度に、図5に示す処理動作を開始し、インクの残量に対応するブロック番号のロックフラグを書き込み禁止に設定し、ロックフラグを更新する。
制御部101は、画像形成装置100の電源投入時や消耗品交換時など、インクリボン200の交換が行われそうな所定の条件を検出した時に、図7に示す処理動作を行い、インクリボン200のRFIDタグ201のブロック番号1のデータ領域に記録されているインクの残量が改竄されているか否かを判定する。
このように、本実施形態の画像形成装置100は、インクリボン200のインクの残量をRFIDタグ201に記録して管理し、RFIDタグ201に記録したインクの残量を更新する度に、その更新後のインクの残量に対応するロック閾値までのブロック番号のロックフラグを書き込み可能から書き込み禁止に設定する。そして、インクリボン200の交換が行われそうな所定の条件を検出した時に、制御部101は、RFIDタグ201に記録されているインクの残量と、RFIDタグ201の各ブロック番号のロックフラグと、を比較し、インクの残量が、書き込み禁止な状態のブロック番号と、書き込み可能な状態のブロック番号と、の間に位置する場合は、インクリボン200が正規品であると判断し、インクの残量が、書き込み禁止な状態のブロック番号と、書き込み可能な状態のブロック番号と、の間に位置しない場合は、インクリボン200が不正品であると判断する。これにより、インクリボン200の残量の不正書き換えを防止し、インクリボン200の不正使用を防ぐことができる。
次に、第2の実施形態について説明する。
このように、本実施形態の画像形成装置100は、RFIDタグ201を識別する一意のユニークなIDを基に算出した一意の識別情報をRFIDタグ201に記録しておく。そして、RFIDタグ201からユニークなIDと識別情報とを読み取り、該読み取ったユニークなIDと、所定のアルゴリズムと、を基に識別情報を算出し、該算出した識別情報と、上記読み取った識別情報と、が一致する場合に正規品と判断し、一致しない場合に不正品と判断する。これにより、RFIDタグ201の複製行為を防止することができる。
101 制御部
102 記憶部
103 リーダ・ライター(RFIDリーダ・ライター)
200 消耗品(インクリボン)
201 メモリ(RFIDタグ)
Claims (7)
- 消耗品を使用する使用機器であって、
前記消耗品は、前記使用機器から取り外し可能であり、前記消耗品は、メモリを有し、前記メモリは、前記消耗品の残量を書き換え可能に記録する第1の記録領域と、前記第1の記録領域に記録されている前記消耗品の残量の状態を特定する複数の第2の記録領域と、を有し、
前記使用機器は、
前記第1の記録領域に記録されている前記消耗品の残量に応じて、前記第2の記録領域を書き込み可能な状態から書き込み禁止な状態に設定し、前記第1の記録領域に記録されている前記消耗品の残量が、書き込み禁止な状態の前記第2の記録領域と、書き込み可能な状態の前記第2の記録領域と、の間に位置するように前記第2の記録領域の状態を設定する書換手段と、
前記第1の記録領域に記録されている前記消耗品の残量を読み出し、該読み出した前記消耗品の残量が、書き込み禁止な状態の前記第2の記録領域と、書き込み可能な状態の前記第2の記録領域と、の間に位置するか否かを判断し、前記消耗品の残量が前記間に位置する場合は、前記消耗品が正規品であると判断し、前記消耗品の残量が前記間に位置しない場合は、前記消耗品が不正品であると判断する制御手段と、
を有することを特徴とする使用機器。 - 前記書換手段は、前記第1の記録領域に記録されている前記消耗品の残量が更新される度に、前記消耗品の残量に応じて、前記第2の記録領域を書き込み可能な状態から書き込み禁止な状態に設定することを特徴とする請求項1記載の使用機器。
- 前記使用機器で使用した前記消耗品の使用量を算出する算出手段を有し、
前記書換手段は、
前記第1の記録領域に記録されている前記消耗品の残量から前記算出手段で算出した前記消耗品の使用量を減算した値を前記消耗品の残量として前記第1の記録領域に記録し、前記消耗品の残量を更新することを特徴とする請求項2記載の使用機器。 - 前記書換手段は、
前記第1の記録領域に記録されている前記消耗品の残量に応じて、前記消耗品の残量の状態を特定する全ての前記第2の記録領域を、書き込み可能な状態から書き込み禁止な状態に設定した場合は、前記消耗品の使用を停止することを特徴とする請求項1から3の何れか1項に記載の使用機器。 - 前記第2の記録領域は、連続番号になっており、
前記第2の記録領域の番号に対応する閾値を管理する管理手段を有し、
前記制御手段は、
書き込み可能な状態の前記第2の記録領域の中から最も番号が小さい書き込み可能な状態の前記第2の記録領域を特定し、該特定した前記第2の記録領域の番号に対応する閾値と、前記消耗品の残量と、を比較する第1の比較手段と、
前記第1の比較手段において前記消耗品の残量が前記閾値より大きい場合に、前記第2の記録領域の番号よりも1つ前の書き込み禁止な状態の前記第2の記録領域の番号に対応する閾値と、前記消耗品の残量と、を比較する第2の比較手段と、
を有し、
前記第1の比較手段において前記消耗品の残量が前記閾値よりも小さい場合、または、前記第2の比較手段において前記消耗品の残量が前記閾値よりも大きい場合は、前記消耗品が不正品であると判断し、
前記第2の比較手段において前記消耗品の残量が前記閾値よりも小さい場合は、前記消耗品が正規品であると判断することを特徴とする請求項1から4の何れか1項に記載の使用機器。 - 消耗品を使用する使用機器で行う制御方法であって、
前記消耗品は、前記使用機器から取り外し可能であり、前記消耗品は、メモリを有し、前記メモリは、前記消耗品の残量を書き換え可能に記録する第1の記録領域と、前記第1の記録領域に記録されている前記消耗品の残量の状態を特定する複数の第2の記録領域と、を有し、
前記使用機器は、
前記第1の記録領域に記録されている前記消耗品の残量に応じて、前記第2の記録領域を書き込み可能な状態から書き込み禁止な状態に設定し、前記第1の記録領域に記録されている前記消耗品の残量が、書き込み禁止な状態の前記第2の記録領域と、書き込み可能な状態の前記第2の記録領域と、の間に位置するように前記第2の記録領域の状態を設定する書換工程と、
前記第1の記録領域に記録されている前記消耗品の残量を読み出し、該読み出した前記消耗品の残量が、書き込み禁止な状態の前記第2の記録領域と、書き込み可能な状態の前記第2の記録領域と、の間に位置するか否かを判断し、前記消耗品の残量が前記間に位置する場合は、前記消耗品が正規品であると判断し、前記消耗品の残量が前記間に位置しない場合は、前記消耗品が不正品であると判断する制御工程と、
を有することを特徴とする制御方法。 - 消耗品を使用する使用機器のコンピュータに実行させるプログラムであって、
前記消耗品は、前記使用機器から取り外し可能であり、前記消耗品は、メモリを有し、前記メモリは、前記消耗品の残量を書き換え可能に記録する第1の記録領域と、前記第1の記録領域に記録されている前記消耗品の残量の状態を特定する複数の第2の記録領域と、を有し、
前記コンピュータに、
前記第1の記録領域に記録されている前記消耗品の残量に応じて、前記第2の記録領域を書き込み可能な状態から書き込み禁止な状態に設定し、前記第1の記録領域に記録されている前記消耗品の残量が、書き込み禁止な状態の前記第2の記録領域と、書き込み可能な状態の前記第2の記録領域と、の間に位置するように前記第2の記録領域の状態を設定する書換処理と、
前記第1の記録領域に記録されている前記消耗品の残量を読み出し、該読み出した前記消耗品の残量が、書き込み禁止な状態の前記第2の記録領域と、書き込み可能な状態の前記第2の記録領域と、の間に位置するか否かを判断し、前記消耗品の残量が前記間に位置する場合は、前記消耗品が正規品であると判断し、前記消耗品の残量が前記間に位置しない場合は、前記消耗品が不正品であると判断する制御処理と、
を実行させることを特徴とするプログラム。
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- 2011-09-14 WO PCT/JP2011/071005 patent/WO2012043240A1/ja active Application Filing
- 2011-09-14 DE DE112011103311T patent/DE112011103311T5/de not_active Withdrawn
- 2011-09-14 US US13/818,877 patent/US20130208320A1/en not_active Abandoned
- 2011-09-14 CN CN2011800468942A patent/CN103140355A/zh active Pending
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CN104002567A (zh) * | 2013-02-22 | 2014-08-27 | 山东新北洋信息技术股份有限公司 | 打印设备及其控制方法和卷筒型打印耗材组件 |
WO2014127710A1 (zh) * | 2013-02-22 | 2014-08-28 | 山东新北洋信息技术股份有限公司 | 打印设备及其控制方法和卷筒型打印耗材组件 |
Also Published As
Publication number | Publication date |
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US20130208320A1 (en) | 2013-08-15 |
TW201227183A (en) | 2012-07-01 |
DE112011103311T5 (de) | 2013-07-11 |
JP2012076357A (ja) | 2012-04-19 |
CN103140355A (zh) | 2013-06-05 |
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