ES2682983T3 - CRUM unit that can be mounted and disassembled in a consumable unit of an image forming apparatus and image forming apparatus using the same - Google Patents

Abstract

A customer replaceable unit monitoring unit, CRUM, comprising: an energy extraction circuit (214), configured to receive a clock signal from an imaging apparatus, extract energy from a high value of the clock signal and store the extracted energy in a capacitive element (214b); and a controller (215), configured to operate using the extracted energy, in which the clock signal is characterized in that a high value and a low value alternate repeatedly in a data section with a first frequency, and the high value and the low value alternates repeatedly in a pause section with a second frequency that is different from the first frequency, and in which the controller (215) is configured to transmit a data signal if the high value and the low value of The clock signal alternates repeatedly with the first frequency.

Description

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DESCRIPTION

CRUM unit that can be mounted and removed in a consumable unit of an image forming device and image forming device that uses the same

Reference to related requests

Background of the invention

1. Field of the invention

Aspects of the exemplary embodiments relate to a customer replaceable unit monitoring unit (CRUM) which can be mounted and removed in a consumable unit of an image forming apparatus, and an image forming device that uses it and, more particularly, a CRUM unit that extracts energy from a clock signal, and an image forming device that uses it.

2. Description of the related technique

With the development of electronic technology, several types of electronic products have been developed. In particular, since computers are widely used, the distribution rate of computer peripheral devices has also been increasing. Peripheral computer devices refer to devices that improve the usability of computers, and include imaging devices such as a printer, a scanner, a copier, a multifunction printer (MFP), etc.

Imaging devices use an ink or toner to print an image on paper. An ink or toner is used each time an image formation job is performed, and it is used up if it is used for more than a predetermined time. In this case, a unit that stores the ink or toner must be replaced. Thus, a part or an element that is replaced in the process of using an image forming apparatus is called a consumable unit or replaceable unit. To facilitate the explanation, this will be called the consumable unit, in this specification.

The consumable unit includes not only a unit that must be replaced when it runs out, such as an ink or a toner, but also a unit that must be replaced after a predetermined period of time, since its properties change as time passes and, therefore, you cannot expect high print quality. That is, the consumable unit may also include parts such as a color developer and an intermediate transfer belt. Such consumption units must be replaced regularly at an appropriate replacement time.

The replacement time can be determined using a usage condition index. The user condition index represents the degree of use of an image formation apparatus, and can be the number of papers that are printed and issued from an image formation apparatus, the number of points that form an image, etc. An image forming apparatus can count the number of papers or points to determine the replacement time of each consumable unit.

Recently, to allow a user to accurately determine the replacement time of each unit, a CRUM unit can be mounted or disassembled in each consumable unit.

If a consumable unit is mounted on an image forming device, a CRUM unit and the image forming device can communicate with each other through each terminal. The CRUM unit includes a power terminal to receive the energy provided by the imaging device. Consequently, the energy provided from the image forming apparatus is transmitted to the power terminal, and the CRUM unit can be operated by receiving the power from the power terminal.

However, taking into account the structural characteristics, the presence of a power terminal to provide energy can increase the number of interfaces of the CRUM unit. The increasing number of terminals or interfaces also increases the size of the CRUM unit, which influences the costs of the CRUM unit.

In addition, as energy is supplied even during a pause in operation, when data is not received or transmitted through the power terminal, the energy consumption of the imaging apparatus increases. To overcome the above problems, it has been suggested to eliminate the power terminal and use only two terminals that combine data with a clock. However, unlike the case in which the data and the clock are incorporated separately, an interface circuit of a main board must be constructed using an analog method, and, therefore, there are the drawbacks of a complicated circuit map and speed limitation, or the like.

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An objective of the present invention is to address the aforementioned drawbacks. US 2005/095020 A1 discloses a CRUM unit that has an energy extraction circuit and a controller configured to operate using the energy ex ^ da.

An objective of the present invention is to address the aforementioned drawbacks.

Compendium of the invention

In accordance with the present invention, an apparatus and method such as those set forth in the appended claims are provided. Other features of the invention will be apparent from the dependent claims and the description that follows.

One aspect of the exemplary embodiments refers to a CRUM unit that is configured to extract energy from a clock signal that is received from an image forming apparatus, and to an image forming apparatus using it.

According to an exemplary embodiment, the CRUM unit includes an energy extraction circuit, configured for, when a clock signal is received from an image forming apparatus, to extract the energy from a high value of the signal of watch and store the energy in a capacitive element; and a controller, configured to operate using extra-fast energy, in which the clock signal has a first pulse width in a data section in which a data signal is received and transmitted, and has a different second pulse width of the first pulse width in a pause section in which a data signal is not received.

Reference is made to an energy extraction circuit, which will be understood to refer also to a charge extraction circuit, for the supply of charge to the capacitive element, to store the charge or extradited charge in the capacitive element.

In this case, the first pulse width of the clock signal may be greater than the second pulse width.

The clock signal may be characterized in that a high value and a low value alternate repeatedly in the data section with a first cycle, or the high value and the low value alternate repeatedly in the pause section with a second cycle that It is different from the first cycle.

The first cycle may be greater than the second cycle.

The controller can receive and transmit an image signal from the image formation apparatus according to the clock signal and manage a memory.

The controller, when it is determined that the pause section changes to the data section based on the clock signal, can transmit / receive the data signal in the data section.

The controller, when a high value and a low value of the clock signal alternate repeatedly in the pause section and a section in which one of the high value and the low value is maintained exceeds a time greater than a predetermined first time, you can determine that the data section changes to the data section, and when a high value and a low value of the clock signal alternate repeatedly in the data section, and a section in which one of the high value and the value Low stays is less than the first time, you can determine that the data section changes to the pause section.

The controller, when a high value and a low value of the clock signal alternate repeatedly in the pause section and a section in which one of the high value and the low value of the clock signal is maintained exceeds a predetermined first time , you can determine that the time at which the data section exceeds the first time is a time at which the reception / transmission of the data signal begins, and when a high value and a low value of the clock signal alternate repeatedly in the data section or the pause section and a section in which a high value of the clock signal is maintained exceeds a second predetermined time, it works to determine that the time in which the section exceeds the second time is a time at which the reception of the data signal ends.

The memory and controller can consist of an integrated chip, IC.

The energy extraction circuit may include a switching element, configured to pass a clock signal having the high value between the received clock signals, and a capacitive element, configured to be recharged by means of the clock signal that is passed from the switching element.

The switching element may be at least one of a diode and a transistor.

The CRUM unit may also include a data terminal, configured to transmit / receive the data signal that is divided, to a data section and a pause section, when the CRUM unit communicates with a main body of the device. image formation, a clock terminal, configured to receive the clock signal

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from the main body, and a ground terminal, configured to be connected to a ground terminal of the main body of the imaging apparatus.

The CRUM may also include a power terminal, which is connected to a power terminal of the main body of the imaging apparatus, in which the power terminal of the CRUM unit can maintain an inactive state.

The clock signal may have a third width that is different from the first pulse width in an inactive section in which a data signal is not received and transmitted.

According to another exemplary embodiment, a CRUM unit includes a data terminal configured to transmit / receive the data signal that is divided, to a data section and a pause section, when the CRUM unit communicates with a main body of the imaging apparatus, a clock terminal, configured to receive the clock signal to determine whether the data signal is received or transmitted from the main body, and a ground terminal, configured to be connected to a terminal ground of the main body of the imaging apparatus, an energy extraction circuit, configured to extract energy from a high value of the clock signal and store it in a capacitive element, and a controller, configured to be operable using extra energy, in which the clock signal has a first pulse width in a data section in which a data signal is received and transmitted, and has a second anc ho pulse which is different from the first pulse width in a pause section in which a data signal is not received.

According to an exemplary embodiment, an image forming apparatus includes a main body having a main controller that is configured to control an operation of the image forming apparatus, a consumable unit, configured to be mounted on the body. main to be able to communicate with the main controller, and a CRUm unit, configured to store information about the consumable unit, in which the main controller is configured to transmit a clock signal in which a high value and a low value alternate repeatedly according to a predetermined pattern in a pause section in which a data signal is not received, to the CRUM unit, in which the clock signal has a first pulse width in a data section in which it is received and transmits a data signal, and has a second pulse width that is different from the first pulse width in a pause section in which a signal is not received from data.

In this case, the first pulse width of the clock signal may be greater than the second pulse width.

The CRUM unit may include an energy extraction circuit, configured to receive the clock signal during the data transmission process with the main controller, to extract energy from the clock signal and to store the extracted energy in a capacitive element, a memory, and a controller, configured to be activated by the extradited energy, to transmit / receive the data signal in accordance with the clock signal, and to manage the memory according to the transmitted / received data signal.

The CRUM unit may also include a data terminal, configured to transmit / receive the data signal from the main controller, a clock terminal, configured to receive the clock signal that is transmitted from the main controller, and a terminal of Earth.

The controller, when it is determined that the pause section changes to the data section based on the clock signal, can transmit / receive the data signal in the data section.

According to an exemplary embodiment, a consumable unit that can be mounted and removed in an image forming apparatus includes a first contact point, configured to receive a clock signal from a main body of the image forming apparatus. , a second contact point, configured to transmit / receive a data signal to / from the main body of the imaging apparatus, a third contact point, configured to be connected to a ground terminal of the main body of the imaging apparatus image formation, and a CRUM unit, configured to receive the clock signal and data signal, in which the CRUM unit is configured to extract energy from a high value of the clock signal in a pause section in the one that does not receive the data signal, in which the clock signal has a first pulse width in a data section in which a transmitted signal and a second pulse width are received, which e s different from the first pulse width, in the pause section where no data is received.

The consumable unit may be a developer or a developing device.

A customer replaceable unit monitoring unit (CRUM) that can be mounted on a consumable unit of an image forming apparatus according to an exemplary embodiment includes a series of interfaces, configured to be connected to the unit consumable, an energy extraction circuit, configured to, when a clock signal is received through one of the series of interfaces, to extract energy from the clock signal, and an interface controller, configured to transmit / receive data through at least one of the series of interfaces according to the clock signal, and the clock signal has a first pulse width in a data section in which a data signal is received, and has a second pulse width, which is different from the first pulse width, in an inactive section in which a data signal is not received.

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The interface controller, when it is determined that the inactive section changes to the data section based on the clock signal, can transmit / receive the data signal in the data section.

The interface controller, when a high value and a low value of the clock signal alternate repeatedly in the inactive section and a section in which one of the high value and the low value is maintained exceeds a predetermined first time, can determine that the inactive section changes to the data section and, when a high value and a low value of the clock signal alternate repeatedly in the data section and a section in which one of the high value and the low value is maintained has the First time, you can determine that the data section changes to the inactive section.

The interface controller, when a high value and a low value of the clock signal alternates repeatedly in the inactive section and a section in which a low value of the clock signal is maintained exceeds a predetermined first time, can determine that the time in which the section exceeds the first time is a time at which reception of the data signal begins and, when a high value and a low value of the clock signal alternate repeatedly in the data section or the Inactive section and a section in which a high value of the clock signal is maintained exceeds a second predetermined time, you can determine that the time in which the section exceeds the second time is a time in which the reception of the signal ends of data.

The energy extraction circuit can extract energy using a clock signal that has the first pulse width and a clock signal that has the second pulse width, and the interface controller can transmit / receive the corresponding data signal to the data section based on the clock signal.

The CRUM unit may also include a memory and a controller, configured to be activated by the energy and manage the memory according to the data signal that is transmitted / received to / from the interface controller.

The interface controller, memory and controller may consist of at least one integrated chip (IC).

The energy extraction circuit may include a diode, configured to pass a clock signal that has a high value outside the clock signal, and a capacitor, configured to be recharged by means of the clock signal that is passed from the diode.

The energy extraction circuit may include a switching element, configured to be connected to the interface and passing a clock signal having the high value by performing a switching operation according to the clock signal that is received through the interface, and a capacitor, configured to be recharged by the clock signal that is passed from the switching element.

The series of interfaces may include a first interface, configured to receive the clock signal from a clock terminal disposed in the consumable unit, a second interface, configured to transmit / receive the data signal to / from a data terminal arranged in the consumable unit, and a third interface, configured to be connected to a ground terminal disposed in the consumable unit.

The series of interfaces may include a first interface, configured to receive the clock signal from a clock terminal disposed in the consumable unit, a second interface, configured to transmit / receive the data signal to / from a data terminal arranged in the consumable unit, a third interface, configured to be connected to a power terminal arranged in the consumable unit, and a fourth interface, configured to be connected to a ground terminal disposed in the consumable unit, and, the third interface can maintain An inactive state.

The series of interfaces may include a first interface, configured to receive the clock signal from a clock terminal disposed in the consumable unit, a second interface, configured to transmit / receive the data signal to / from a first data terminal arranged in the consumable unit, a third interface, configured to transmit a data signal to the image formation apparatus through a second data terminal disposed in the consumable unit, and a fourth interface, configured to be connected to a ground terminal arranged in the consumable unit.

The clock signal may have a clock wave form in which a high value section and a low value section with the second pulse width alternate repeatedly in the inactive section, and a clock signal size in the High value section may exceed '0'.

The clock signal may have a clock wave form in which a high value section and a low value section with the second pulse width alternate repeatedly in the inactive section, and a clock signal size in the Low value section may be less than high value.

An image forming apparatus according to an exemplary embodiment includes a main body, configured to have a main controller that controls an operation of the image forming apparatus, a consumable unit, configured to be mounted on the main body for allow communication with the main controller, and a CRUM unit, configured to be arranged in the consumable unit, and the

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main controller transmits a clock signal in which a high value and a low value alternate repeatedly according to a predetermined pattern in an inactive section in which a data signal is not received, to the CRUM unit through the consumable unit, and the clock signal has a first pulse width in a data section in which the data signal is received and a second pulse width that is different from the first pulse width in the inactive section.

The consumable unit may include a data terminal, configured to transmit / receive the data signal to / from the main controller, a clock terminal, configured to receive the clock signal that is transmitted from the main controller, and a data terminal. land.

The CRUM unit may include a first interface, configured to transmit / receive the data signal to / from the data terminal, a second interface, configured to receive the clock signal from the clock terminal, an energy extraction circuit, configured to, when the clock signal is received through the first interface, to extract energy from the clock signal, an interface controller, configured to transmit / receive the data signal through at least one of the series of interfaces according to the clock signal, a memory, and a controller, configured to be activated by the energy and manage the memory according to the data signal that is transmitted / received to / from the interface controller.

The interface controller, when it is determined that the inactive section changes to the data section based on the clock signal, can transmit / receive the data signal in the data section.

The interface controller, when a high value and a low value of the clock signal alternate repeatedly in the inactive section and a section in which one of the high value and the low value is maintained exceeds a predetermined first time, can determine that the inactive section changes to the data section and, when a high value and a low value of the clock signal alternate repeatedly in the data section and a section in which one of the high value and the low value is maintained has the First time, you can determine that the data section changes to the inactive section.

The consumable unit may also include a power terminal, the CRUM unit may also include a third interface that is connected to the power terminal, and the third interface can maintain an inactive state at all times.

The consumable unit may also include an additional data terminal, and the CRUM unit may also include a third interface configured to transmit a data signal to the main controller through the additional data terminal.

A CRUM unit that can be mounted on a consumable unit of an image forming apparatus according to an exemplary embodiment includes a series of interfaces, configured to be connected to the consumable unit, an energy extraction circuit, configured for, when a clock signal is received through one of the series of interfaces, extracting energy from the clock signal, and an interface controller, configured to transmit / receive a data signal through at least one of the series of interfaces according to the clock signal, and the clock signal is a signal in which a high value and a low first value alternate repeatedly in a data section in which a data signal is received, and one of the high value and a second low value is maintained in an inactive section in which the data signal is not received, and the second low value exceeds '0' and is less than the high value.

The clock signal may be a signal in which the high value and the first low value alternate repeatedly according to a first predetermined time in the data section, and one of the high value and the second low value can be maintained for a time longer than the first time in the inactive section.

The interface controller, when it is determined that the inactive section changes to the data section based on the clock signal, can transmit / receive the data signal in the data section.

The interface controller, when the high value of the clock signal is maintained and changes to the first low value in the inactive section, can determine that a time point at which the high value changes to the first low value is a time point in which the reception of the data signal begins and, when a section in which the high value of the clock signal is maintained exceeds the first time in the data section or the inactive section, it can determine that the time is a time point at which the reception of the data signal ends.

The interface controller, when one of a high value and a second low value of the clock signal is maintained for a longer time than a first time in the inactive section and the high value and the first low value have the first time, can determine that the inactive section changes to the data section and, when a high value and a first low value of the clock signal alternate repeatedly in the data section and a section in which one of the high value and the second low value If it remains exceeding the first time, you can determine that the data section changes to the inactive section.

The series of interfaces may include a first interface, configured to receive the clock signal from a clock terminal disposed in the consumable unit, a second interface, configured to transmit / receive the signal from

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data from a data terminal disposed in the consumable unit, and a third interface, configured to be connected to a ground terminal disposed in the consumable unit.

The first low value can be the same as the second low value.

The first low value can be '0'.

A consumable unit that can be mounted in an image forming apparatus according to an exemplary embodiment includes a first contact point, configured to receive a clock signal from a main body of the image forming apparatus, a second contact point, configured to transmit / receive a data signal to / from a main body of the imaging device, a third contact point, configured to be connected to a ground terminal of a main body of the imaging device image, and a CRUM unit, configured to receive the clock signal and the data signal, and the CRUM unit extracts and uses energy from the clock signal in an inactive section in which the data signal is not received, and the clock signal has a first pulse width in a data section in which a data signal and a second pulse width is received, which is different from the first pulse width, in an inactive section in which to which no data is received.

A consumable unit that can be mounted in an image forming apparatus according to an exemplary embodiment includes a first contact point, configured to receive a clock signal from a main body of the image forming apparatus, a second contact point, configured to transmit / receive a data signal to / from a main body of the imaging device, a third contact point, configured to be connected to a ground terminal of a main body of the imaging device image, and a CRUM unit, configured to receive the clock signal and the data signal, and the CRUM unit extracts and uses energy from the clock signal in an inactive section in which the data signal, the signal is not received Clock is a signal in which a high value and a low value alternate repeatedly in a data section where the data signal is received and one of the high value and the low value is maintained in the section inactive, and the low value exceeds '0' and is less than the high value.

The invention extends to a method for extracting energy from a clock signal in a customer replaceable unit monitoring unit, CRUM, which can be mounted in a consumable unit of an image forming apparatus, the method comprising extract and use energy from the clock signal in an inactive section in which a data signal is not received, as described above.

Brief description of the drawings

The foregoing and / or other aspects of the present concept of the invention will be more evident when certain embodiments are described by way of example of the present concept of the invention by referring to the attached drawings, in which:

Fig. 1 is a block diagram showing the configuration of an image forming apparatus according to an exemplary embodiment;

Figure 2A is a view showing one side of a consumable unit shown in Figure 1;

Figure 2B is a view showing another example of a consumable unit and a CRUM unit shown in Figure 1;

Figures 3 and 4 are views provided to explain a method of connection between an image forming apparatus and a consumable unit;

Fig. 5 is a block diagram showing the configuration of an image forming apparatus according to another exemplary embodiment;

Figure 6 is a view showing one side of the consumable unit shown in Figure 3;

Fig. 7 is a block diagram showing the configuration of a CRUM unit according to an exemplary embodiment;

Fig. 8A is a block diagram showing the configuration of a CRUM unit according to another exemplary embodiment;

Figure 8B is a block diagram showing the configuration of a CRUM unit according to another embodiment by way of example;

Figures 9A and 9B are circuit diagrams showing an energy extraction circuit of the CRUM unit shown in Figure 7;

Fig. 10 is a block diagram showing the configuration of a CRUM unit according to another exemplary embodiment;

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Fig. 11 is a block diagram showing the configuration of a CRUM unit according to another exemplary embodiment;

Figure 12A is a view provided to explain various sections of signal transmission between the main body and the CRUM unit;

Figure 12B is a view provided to explain various examples of a data signal, a clock signal and a waveform according to a decoding signal;

Fig. 13 is a flowchart provided to explain an energy extraction method of a CRUM unit according to an exemplary embodiment; Y

Fig. 14 is a flow chart provided to explain a method of extracting energy from a CRUM unit according to another exemplary embodiment.

Detailed description

It should be noted that the steps of the method and the components of the system have been represented in the figure by conventional symbols, showing only details that are relevant to an understanding of the present invention. In addition, the details may be readily apparent to a person skilled in the art that may not have been described. In the present description, the relational terms such as first and second, and others, can be used to distinguish an entity from another entity, without necessarily implying any real relationship or order between said entities.

Figure 1 is a block diagram showing the configuration of an image forming apparatus according to an exemplary embodiment. According to Fig. 1, an image forming apparatus includes a main body 100, a main controller 110 and a consumable unit 200 that can be mounted on the main body 100. In this case, the image forming apparatus can be perform as various types of devices that can form an image on various types of recording media such as paper, such as a printer, a scanner, a multifunction printer (MFP - Multi-Function Printer, in English), a facsfmil, a copier , etc.

The main controller 110 is mounted on the main body 100 of an image forming apparatus, and controls the general functions of the image forming apparatus. The main controller 110 can generate a data signal and a clock signal to communicate with the CRUM 210 unit. In this case, the data signal is a signal for receiving and transmitting data between the CRUM 210 unit and the main controller 110, and the clock signal is a signal to determine whether the data signal is received or transmitted in the CRUM 210 unit. In this exemplary embodiment, so that the energy of the CRUM unit is extracted through the clock signal. , the clock signal of which a high value and a low value are repeatedly alternated is generated not only in the data section but also in the pause section, and transmitted to the CRUM 210 unit. This will be shown in more detail. referring to figures 12A and 12B.

The consumable unit 200 is mounted on the main body 100 of an image forming apparatus, and can be one of several types of units that involve a work of image formation directly or indirectly. For example, a laser imaging apparatus may include a consumable unit such as a loading unit, an exposure unit, a developing unit, a transfer unit, a fixing unit, various rollers, a belt, a OPC drum, etc., and other various types of units that require replacement, such as a developer (for example, a developer cartridge or a toner cartridge), in the process of using an image forming apparatus can be defined as the 200 consumable unit.

As described above, there is a life expectancy for each consumable unit 200. Accordingly, in the consumable unit 200, a CRUM 210 unit can be mounted or disassembled, so that each consumable unit 200 can be replaced on time.

The CRUM 210 unit is an element that is mounted on the consumable unit 200 and records various information. The CRUM 210 unit may consist of only one chip or may consist of various elements that are integrated in a plate. In this exemplary embodiment, it is described that the CRUM 210 unit is arranged in the consumable unit 200, and is mounted in the main body through the consumable unit, but in the embodiment, the CRUM 210 unit can be mounted directly on the main body 100 of the imaging apparatus. That is, the CRUM unit can be sold separately from the consumable unit and replaced by mounting it directly on the main body. This will be described in greater detail with reference to Figure 2B.

CRUM 210 includes a memory. Accordingly, the CRUM unit 210 may be referred to by several names, such as a memory, a CRUM unit memory, etc., but it will be referred to as the CRUM unit 210 in this specification, for convenience of explanation.

A memory provided in the CRUM 210 unit can store various information properties with respect to the consumable unit 200, the CRUM 210 itself, the image forming apparatus, etc., and use information or a program to perform a training job. of image.

Specifically, various programs that are stored in the CRUM 210 unit may include not only a general application but also an operating system program (O / S - Operating System, in English), an encryption program, etc. In addition, the information on the properties may include information about a manufacturer of the consumable unit 200, information about a manufacturer of the imaging device, the name of mountable imaging devices, information about a manufacturing date, a serial number, a model name, an electronic signature information, an encryption key, an encryption key index, etc. In addition, the usage information may include information about how many documents have been printed so far, how many documents can be additionally printed, how much toner is left, and the life information of a visual receiver that is a major component. The life information of the visual receiver and the transfer roller can be the visual receiver and the rotation number of the transfer roller, etc. The image forming apparatus, by comparing predetermined data with the life information 15 mentioned above by means of an experiment, can additionally control the voltage / current that is supplied to each component of the image forming apparatus, and an image can be generated. high quality printing. Property information can also be called intrinsic information.

For example, CRUM 210 may include information as shown in the following table.

[Table 1]

 General information

 OS Version

 CLP300_V1.30.12.35

 SPL-C Version

 5.24

 Engine version

 6.01.00 (55)

 USB serial number

 BH45BAIP914466B.

 Set model

 SUN

 Service Start Date

 Option

 RAM size

 32 Mbytes

 EEPROM size

 4096 bytes

 USB connected (High)

 Supplies life

 Total page count

 774/93 pages (color / mono)

 Fuse life

 1636 pages

 Transfer Roller Life

 864 pages

 Tray 1 roll life

 867 pages

 Total image count

 3251 images

 Image forming unit / Life of the duty roller

 61 images / 19 pages

 Life of the transfer belt

 3251 images

 Toner Image Count

 9/14/14/19 images (C / M / Y / K)

 Toner Information

 Percentage of toner remaining

 99% / 91% / 92% / 100% (C / M / Y / K)

 Average toner coverage

 5% / 53% / 31% / 3% (C / M / Y / K)

 Information about consumables

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 Cyan toner

 SAMSUNG (DOM)

 Magenta toner

 SAMSUNG (DOM)

 Yellow toner

 SAMSUNG (DOM)

 Black toner

 SAMSUNG (DOM)

 Imaging Unit

 SAMSUNG (DOM)

 Color menu

 Custom color

 Manual adjustment (CMYK: 0,0,0,0)

 Configuration Menu

 Energy saving

 20 minutes

 Automatic continuation

 On

 Altitude adjustment

 Normal

As shown in the table above, the memory of the CRUM 210 unit may include not only brief information on the consumable unit 200, but also information on the useful life of the consumables, information, a configuration menu, etc. In addition, the memory can also store an O / S that is provided separately from the main body of the imaging apparatus for use in the CRUM 210 unit.

In addition, the CRUM 210 unit may additionally include a CPU (not shown) that manages a memory, executes various programs stored in the memory, and communicates with the main body of the imaging apparatus or with the controllers of others. appliances

Meanwhile, if the consumable unit 200 that includes the CRUM 210 unit is mounted on the main body 100 of the imaging apparatus, each terminal 221, 222, 223 of the CRUM 210 unit communicates with the main controller 110 through each terminal 121, 122, 123 of the main body 100 of the imaging apparatus.

The main body 100 of the imaging apparatus includes three terminals 121, 122, 123, each respectively connected by wires 131, 132, 133 connected to the main controller 110.

In addition, the CRUM 210 unit also includes three terminals 221, 222, 223 that are interconnected to the three terminals 121, 122, 123 included in the main body 100. Since the three terminals 221, 222, 223 included in the CRUM 210 unit are connected to the CRUM 210 unit, the CRUM 210 unit communicates with the main controller 110 through the three terminals 221, 222, 223 included in the CRUM 210 unit. Next, it has been described that the body 100 and the unit CRUM 210 are connected to each other with three terminals, but during realization, they can be connected with four terminals, and, in this case, a terminal of the CRUM 210 unit can be a dummy terminal.

The clock terminal 221 of the CRUM unit 210 may be connected to a clock terminal 121 included in the main body 100 of the imaging apparatus and may receive a clock signal. In addition, the data terminal 222 of the CRUM 210 unit can be connected to a data terminal 122 included in the main body 100 of the imaging apparatus and can transmit / receive a data signal. The ground terminal 223 of the CRUM 210 unit is connected to a ground terminal 123 included in the main body 100 of the imaging apparatus. Meanwhile, when a clock signal is received through the clock terminal 221, the CRUM 210 unit draws energy from the clock signal. That is, when the clock signal has a high value, a capacitive element (for example, a capacity) can be charged to prepare the energy. The details of the energy extraction operation will be described with reference to Figure 9.

The method of energy extraction can be carried out in several ways according to the waveform of the clock signal. In addition, the waveform of the clock signal may vary depending on a data section in which a data signal is received and transmitted, and a pause section in which a data signal is not received and transmitted.

According to the first exemplary embodiment, a clock signal may have a clock waveform in which a high value and a low value alternate repeatedly according to a predetermined pattern in a pause section.

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That is, a clock signal can maintain a clock waveform even in a pause section. In this case, a clock signal in a data section may have a first pulse width, and a clock signal in a pause section may have a second pulse width that is different from the first pulse width. In this document, it is preferred that the first pulse width can be configured to be larger than the second pulse width.

In addition, the frequency of a clock signal in the data section (i.e. a first clock frequency) may be different from the frequency of a clock signal in the pause section (i.e., a second clock frequency) . Meanwhile, if a working relationship is the same and the frequency of a clock signal in the data section is different from the frequency of a clock signal in a pause section, the first pulse width in the data section It may be different from the second pulse width in the pause section.

In this case, it is assumed that the work relationship between the first clock frequency and the second clock frequency is the same, but during the realization, the work relationship in the data section and the work relationship in the data section. Pause may be different, and the working relationship in the same data section may be different from each other within a predetermined interval. Specifically, the time to maintain a high value and a low value of the clock signal having the second pulse width may be different in an interval that is less than the first time (reference time used to determine if the section it's a data section or a pause section). The time to maintain a high value and a low value of the clock signal having the first pulse width may be different in an interval that is greater than the first time.

Specifically, a high value and a low value of a clock signal alternate repeatedly in a first predetermined unit of time in the pause section, a high value d and a low value of a clock signal alternate repeatedly in a second default unit of time that is set to be longer than the first unit of time in the data section. In this case, the high value can be from 2V to 4V. The low value may exceed '0', but be less than the high value. The low value can be '0'.

In accordance with the above exemplary embodiment, a clock signal includes a high value in the pause section and the data section and, thus, the CRUM 210 unit can extract energy from the high value of a signal. clock in the pause section, and the data section and works accordingly. In particular, since the high value and the low value of a clock signal are repeated by the first clock cycle in the pause section, the energy can be repeatedly extracted from the high value and actuate the CRUM 210 unit continuously without No pause in the power supply. In the communication scheme 12C of the related technique, in the pause section between data and data, a clock signal maintains a low value and a capacitive element is discharged, and the IC functions incorrectly for some software operations, or due to an energy coffe, a reboot occurs and, temporarily, the stored data and the authentication data are lost. Therefore, access must be made from the beginning, and therefore, the operations of the imaging apparatus may be delayed. Frequent reset causes problems such as damage to the CRUM unit, and therefore there is a difficulty in applying the technique to load a capacity with a clock signal and use it as energy.

In addition, when energy is extracted from a data signal, a continuous low value can be maintained, and therefore the problem mentioned above may occur.

The CRUM unit 210 according to the exemplary embodiments described above can be activated by the energy extracted from the pause section and the data section. In addition, the CRUM 2l0 unit can transmit / receive a data signal according to a clock signal in the data section, and can manage a memory according to the data signal.

As described above, according to an exemplary embodiment, the CRUM 210 unit can be activated without a power terminal, drawing energy from a clock signal that the CRUM 210 unit receives through the clock terminal 221.

In addition, the CRUM 210 unit does not have to include an interface to be connected to a power terminal and, therefore, the cost of the CRUM 210 unit can be reduced as the size of the CRUM 210 unit and the number of interfaces In addition, a power terminal is not provided, and therefore a circuit is necessary to control a power terminal, and the circuit structure is simplified.

Figure 2A is a view showing one side of a consumable unit shown in Figure 1.

According to FIG. 2A, the consumable unit 220 may include a terminal unit 220 for communication with the main controller 110 which is arranged in an image forming apparatus, and the terminal unit may consist of a part of the CRUm unit 210 The terminal unit 220 may include the clock terminal 221, the data terminal 222 and the ground terminal 223, as shown in Figure 1.

The clock terminal 221, the data terminal 222 and the ground terminal 223 are a type of contact, and are electrically connected to the three terminals 121, 122, 123 arranged in the main body 100 of the contact imaging apparatus between sf

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Figure 2B is a view showing another example of the consumable unit and the CRUM unit shown in Figure 1.

According to Fig. 2B, the CRUM 210 unit can be separated from the consumable unit 200. Accordingly, the CRUM 210 unit can be directly connected to the main body 100 of the imaging apparatus. Specifically, each terminal 221, 222 and 223 of the CRUM 210 unit may be in contact with terminals 121, 122, 123 of main body 100.

Figures 3 and 4 are views provided to explain a method of connection between an image forming apparatus and a consumable unit.

Figure 3 is a view showing a connection state between the consumable unit 200 that is made in a type of contact and the main body 100 of an image forming apparatus. According to Fig. 3, the main body 100 of the image forming apparatus includes a terminal unit 120, a main board 140, in which several parts including the main controller 110 are arranged, and, a connection cable 130, to connect the main board 140 with the terminal unit 120.

As shown in Figure 3, when the consumable unit 200 is mounted on the main body 100, the terminal unit 220 included in the consumable unit 200 is electrically connected with the terminal unit 210 of the main body 100, since they are in contact between sf naturally. In this case, the terminal unit 220 can be considered part of the CRUM 210 unit configurations.

Figure 4 is a view showing an example of an external configuration of the terminal unit 220 that is carried out in a type of connector. According to Fig. 4, the main body 100 of the image forming apparatus includes the terminal unit 120 in a type of port into which a connector can be inserted. The terminal unit 120 includes three terminals 121, 122, 123.

The CRUM 210 unit may include the clock terminal 221 in a type of connector. The clock terminal 221 is inserted into the clock terminal 221 disposed in the terminal unit 120.

In addition, although not shown in the drawing, the consumable unit 200 additionally includes the data terminal 222 and the ground terminal 223 which are in a type of connector, and are inserted into the data terminal 122 and the ground terminal 123 which are arranged in the terminal unit 120, respectively. In this case, the data terminal 222 and the ground terminal 223 can be considered as part of the constitution of the CRUM unit 210.

Figure 5 is a block diagram showing the configuration of an image forming apparatus according to another exemplary embodiment.

In Figure 1, the main body 100 and the CRUM unit 210 of the image forming apparatus include three terminals 121, 122, 123, 221, 222, 223, respectively, but the main body 100 of the image forming apparatus and the CRUM 210 unit may additionally include a power terminal. That is, the main body 100 of the image forming apparatus and the CRUM unit 210 may include four terminals, respectively.

According to Fig. 5, an image forming apparatus includes a main body 300, a main controller 310 that is disposed in the main body 300 and a consumable unit 400 that can be mounted in the main body 300.

As shown in Figure 5, if the consumable unit 400 that includes the CRUM 410 unit is mounted on the main body 300 of the imaging apparatus, the CRUM 410 unit communicates with the main controller 310 through the unit 400 consumable

The main controller 310 can be electrically connected to the CRUM 410 unit by means of four terminals 321, 322, 323, 324 arranged in the main body 100 and the wires 331, 332, 333, 334 that are connected to each terminal 321, 322, 323.

In addition, the CRUM 410 unit includes four terminals 421, 422, 423, 424 that are in contact with four terminals 321, 322, 323, 324 of the main body 300.

According to an exemplary embodiment, the four terminals 321, 322, 323, 324 included in the main body 300 may be a clock terminal, a data terminal, a power terminal and a ground terminal, respectively. Also, the four terminals 421, 422, 423, 424 included in the CRUM 410 can also be a clock terminal, a data terminal, a power terminal and a ground terminal, respectively.

Meanwhile, the clock terminal 421 of the CRUM 410 unit can be connected to the clock terminal 321 included in the main body 300 of the imaging apparatus and can receive a clock signal. In addition, the data terminal 422 of the CRUM 410 can be connected to the data terminal 322 included in the main body 300 and can transmit / receive a data signal. The power terminal 423 of the CRUM 410 unit can be

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connected to the power terminal 223 included in the main body 300, and the ground terminal 424 of the CRUM 410 can be connected to the ground terminal 224 included in the main body 300.

The power terminal 323 included in the main body 300 of the image forming apparatus is always kept in an inactive state. That is, power terminal 323 is not a terminal for power supply.

In an image forming apparatus that is standardized with four terminals, the consumable unit 200 and the CRUM 210 shown in Figure 1 cannot be used. Accordingly, the main body 310 of the image forming apparatus can be configured to include four terminals to meet the standard of the image forming apparatus, while the power terminal 323 is configured to be electrically disconnected. That is, the power terminal 323 may be composed of a dummy terminal.

In addition, the CRUM 410 can be standardized with four terminals to correspond to the imaging apparatus. Accordingly, the CRUM 410 can also include four terminals 421, 422, 423, 424.

Meanwhile, the CRUM 410 unit may include a series of interfaces (not shown) to be connected to the four terminals 421, 422, 423, 424 included in the consumable unit 400. One of the series of interfaces may be connected to the terminal power supply 423 included in the consumable unit 400. However, this interface can be kept in an inactive state when it is disconnected electrically from the CRUM 410 unit.

Since the main body 300 of the imaging apparatus and the CRUM 410 according to an exemplary embodiment include energy terminals 323, 423 that are kept in an inactive state, they do not supply or receive power through the energy terminals 323, 423. Accordingly, the energy consumption of the imaging apparatus can be reduced.

Meanwhile, it is general that an image forming apparatus and a consumable unit that are currently marketed include four terminals of a clock terminal, a data terminal, a power terminal and a ground terminal, respectively. Therefore, if only one protocol that is related to a clock signal stored in the main controller of a currently marketed imaging apparatus is changed or updated, the CRUM 410 according to an exemplary embodiment can be mounted and used. Consequently, the existing CRUM unit can be compatible with the CRUM 410 unit.

Meanwhile, according to another exemplary embodiment, the four terminals 321, 322, 323, 324 included in the main body 300 of the imaging apparatus may be a clock terminal, a first data terminal, a second data terminal and a ground terminal, respectively. Also, the four terminals 421, 422, 423, 424 included in the CRUM 410 can also be a clock terminal, a first data terminal, a second data terminal and a ground terminal, respectively.

The clock terminal 421 of the CRUM 410 unit may be connected to the clock terminal 321 included in the main body 300 of the imaging apparatus and may receive a clock signal. In addition, the first data terminal 422 of the CRUM 410 unit may be connected to the first data terminal 322 included in the main body 300 of the imaging apparatus, and may transmit / receive a data signal. The second data terminal 423 of the CRUM 410 unit may be connected to the second data terminal 223 included in the main body 300 of the imaging apparatus, and the ground terminal 424 of the CRUM 410 unit may be connected to the data terminal. ground 424 included in the main body 300 of the imaging apparatus.

The main body 300 of the image forming apparatus and the consumable unit 400 include two data terminals 222, 223 and 422, 423, respectively, and thus, can transmit, and the main controller 310 and the CRUM 410 unit can transmit and receive a data signal through data terminals 222, 422 and 223, 423 that are in connection with each other.

Specifically, when the main controller 310 transmits and receives a data signal to the CRUM 410 unit, the main controller 310 can transmit the data signal through the first data terminal 322. According to said operation, the CRUM 410 unit can transmit / receive the data signal through the first data terminal 422 that is connected to the first data terminal 322.

On the other hand, when the CRUM 410 unit transmits a data signal to the main controller 310, the CRUM 410 unit can transmit the data signal through the second data terminal 423. According to said operation, the main controller 310 can transmit / receive the data signal through the second data terminal 323 that is connected to the second data terminal 423.

Meanwhile, in the exemplary embodiments described above, when a clock signal is received through the clock terminal 421, the CRUM 410 unit draws energy from the clock signal. That is, when the clock signal has a high value, a capacitor can be charged to supply energy. The method of sampling the

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Energy can be carried out in several ways, as described above with reference to Figure 1.

Therefore, whether or not a power terminal is included in the main body 200 of the imaging apparatus and the consumable unit 400, the CRUM 210 unit can extract and activate the energy of a clock signal.

Figure 6 is a view showing one side of the consumable unit shown in Figure 5.

According to Figure 6, the consumable unit 400 includes a terminal unit 420 for communication with the main controller 310 which is arranged in an image forming apparatus.

To be connected to the four terminals 321, 322, 323, 324 included in the main body 300 of the imaging apparatus, the terminal unit 420 may include four terminals 421,422, 423, 424.

That is, the terminal unit 420 may additionally include another terminal 423, in addition to the clock terminal 421, the data terminal 422 and the clock terminal 424, and this additional terminal 423 may be a power terminal or a power terminal. additional data depending on the exemplary embodiments.

The four terminals 421, 422, 423, 424 above are a type of connection, and are electrically connected to the four terminals 421, 422, 423, 424 of the main body 300 of the image forming apparatus in contact with each other.

Fig. 7 is a block diagram showing the configuration of a CRUM unit according to an exemplary embodiment.

According to FIG. 7, the CRUM 210 unit includes an energy extraction circuit 214, a controller 215, a memory 216, and a series of terminals 221, 222, 223. In this case, controller 215 and memory 216 They can be configured as an integrated circuit (IC).

The series of terminals 221, 222, 223 are connected to the series of contact points 121, 122 and 123. Specifically, the series of terminals 221, 222 and 223 may be the clock terminal 221, the data terminal 222 and ground terminal 223.

The clock terminal 221 may be electrically and physically connected to the clock terminal 121 of the main body 100.

The data terminal 222 may be electrically and physically connected to the data terminal 121 of the main body. And, the ground terminal 223 can be electrically and physically connected to the ground terminal 123 of the main body. Meanwhile, it has been shown that a series of terminals 221,222, 223 are composed of three, but in one embodiment, the terminals may be composed of four. An example of four terminals will be explained in greater detail by referring to Figures 10 and 11.

The energy extraction circuit 214, when a clock signal is received through the clock terminal 221, extracts energy from the clock signal. The clock signal can have a different waveform according to a section of a data signal that is received / transmitted through the data terminal 222 of the main body, and can be performed in several ways. The detailed types and operations of the clock signal will be described with reference to Figures 12A and 12B.

According to the exemplary embodiment, the clock signal may have a first pulse width in the data section in which a data signal is received and transmitted, and may have a second pulse width, which is different from the first pulse width, in the pause section, in which a data signal is not received and transmitted. In this case, it is desirable that the first pulse width be greater than the second pulse width. In this case, the first pulse width may be one of a width of a high value or a width of a low value.

In addition, the cycle of a clock signal in the data section may be different from the frequency of a clock signal in the pause section. Specifically, a clock signal may have a waveform in which a high value and a low value alternate repeatedly in a first predetermined unit of time in the pause section, and a high value and a low value alternate repeatedly in a second predetermined unit of time that is set to be longer than the first unit of time in the data section.

If a clock signal is received according to the embodiment by way of example above, the energy extraction circuit 214 can extract high value energy in the pause section and the data section. In this case, the high value can be from 2V to 4V. In addition, the low value may exceed '0', but be less than the high value. Alternatively, the low value may be '0'. The controller 215 is activated by the energy that is extracted by the energy extraction circuit 214. The controller 215 can transmit and receive data through the data terminal 222 in accordance with a clock signal.

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The controller 215 can determine the times to receive / transmit and terminate a data signal based on a clock signal. Specifically, in normal times, the CRUM 210 unit and the image forming apparatus may be connected in a standby mode, but to transmit / receive data, they need to be activated. To do this, the clock signal may include a signal section to notify the CRUM 210 of the time when reception of a data signal begins.

If a high value and a low value of the clock signal alternate repeatedly in the pause section, and the section in which one of the high value and the low value is maintained exceeds the first time, the controller 215 can determine the point of the time in which the first time (A in Figure 12A) is exceeded as the time at which reception / transmission of data begins.

Furthermore, when the transmission / reception of a data signal between the CRUM 210 unit and the image formation apparatus is completed, the CRUM 210 unit and the image formation apparatus need to terminate the active state and be connected to the standby state. . Accordingly, the clock signal may include a signal section to inform the CRUM 210 of the time point at which the reception of the data signal ends.

If a high value and a low value of a clock signal alternate repeatedly in the second unit of time in the data section, and a section in which the high value of the clock signal is maintained exceeds the second time, the Controller 215 may determine that the time point at which the second time is exceeded may be the time at which the reception of a data signal ends.

Alternatively, if a high value and a low value of a clock signal alternate repeatedly in the first unit of time in the pause section, and a section in which the high value of the clock signal is kept exceeds the second time , the controller 215 may determine that the point of time at which the second time exceeds (D "in Figure 12B) may be the time at which the reception of a data signal ends.

Meanwhile, between the time point at which the reception / transmission of a data signal begins and the time point at which the reception / transmission of a data signal ends can be defined as a total data section, and This may include a pause section during data reception / transmission (the first pause section (BC) in Figure 12B).

The controller 215, when a clock signal is received through the clock terminal 221, can verify the clock signal and determine when the pause section changes to the data section, or when the data section changes to the data section. pause.

Specifically, when the clock signal is received, the controller 215 may determine that the pause section changes to the data section if one of the high value and the second low value of the clock signal is maintained for a time greater than the first time in the pause section, and the high value and the first low value have the first time.

The controller 215 may determine that the data section changes to the pause section if the high value and the first low value of the clock signal alternate repeatedly in the data section and a section in which one of the high value and the Second low value has the first time.

When it is determined that the pause section changes to the data section, the controller 215 may receive / transmit a data signal that is received / transmitted during the data section through the data terminal 222.

Controller 215 can manage memory 216 in accordance with the data signal received / transmitted. That is, the controller 215 can store a data signal in memory 216, read the data stored in memory 216 and transmit the data signal to the image forming apparatus.

As described above, according to an exemplary embodiment, the CRUM 210 unit can operate without any separate power terminal, drawing energy from a clock signal that is received through the clock terminal 221. As such, The CRUM 210 unit does not have to include a terminal to connect to a power terminal and, therefore, the size of the CRUM 210 unit and the number of interfaces can be reduced.

When Figure 7 is described, it is described that the CRUM unit includes only one controller and one memory, but during realization, the CRUM unit may be composed of an iC. This will be explained by referring to Figure 8A. In the foregoing, it has been explained that the CRUM unit is composed of a controller, but during realization, the CRUM unit includes a series of controllers and forms the CRUM unit. This will be described with reference to Figure 8B.

Fig. 8 is a block diagram showing the configuration of a CRUM unit according to another exemplary embodiment.

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According to Figure 8, the CRUM unit 210 'according to the second exemplary embodiment includes the extraction circuit from Jan ^ 214, the control IC 218 and the terminal series 221, 222, 223.

The series of terminals 221, 222, 223 are connected to the series of contact points 121, 122 and 123. Specifically, the series of terminals 221, 222 and 223 may be the clock terminal 221, the data terminal 222 and ground terminal 223.

The clock terminal 221 may be electrically and physically connected to the clock terminal 121 of the main body 100.

The data terminal 222 may be electrically and physically connected to the data terminal 121 of the main body. And, the ground terminal 223 can be electrically and physically connected to the ground terminal 123 of the main body. Meanwhile, it has been shown that a series of terminals 221,222, 223 are composed of three, but in the embodiment, the terminals may be composed of four. An example of four terminals will be explained in greater detail by referring to Figures 10 and 11.

The energy extraction circuit 214 is connected to the clock terminal 221 and, when a clock signal is received through the clock terminal 221, it extracts energy from the clock signal. The clock signal can have a different waveform according to a section of a data signal that is received through data terminal 222, and can be performed in several ways.

For example, the clock signal according to the exemplary embodiment may have the first pulse width in the data section in which the data signal is received and transmitted, and has the second pulse width that is different of the first pulse width in the pause section in which no data is received or transmitted. In this case, it is desirable that the first pulse width be greater than the second pulse width.

In addition, the frequency of a clock signal in the data section may be different from the frequency of a clock signal in the pause section. Specifically, a clock signal may have a waveform in which a high value and a low value alternate repeatedly for a first predetermined unit of time in the pause section, and a high value and a low value alternate repeatedly during a second predetermined unit of time, which is set to be greater than the first unit of time in the data section.

If a clock signal is received according to the first exemplary embodiment, the energy extraction circuit 214 can extract high value energy in the pause section and the data section. In this case, the high value can be from 2V to 4V. In addition, the low value may exceed '0', but be less than the high value. Alternatively, the low value may be '0'.

The control IC 218 is activated by the energy that is extracted by the energy extraction circuit 214. The control IC 218 transmits and receives data through at least one of the first to third terminals 221,222, 223 according to a clock signal.

First, when a clock signal is received through the clock terminal 221, the control IC 218 verifies the clock signal and determines a time point at which a data section changes to a pause section, or a point of time at which the pause section changes to the data section.

Specifically, when a clock signal is received according to the first exemplary embodiment, the control IC 218 determines that the pause section changes to the data section if a high value and a low value of the clock signal they alternate repeatedly in the pause section, and the section in which one of the high value and the low value is maintained exceeds the first time.

Also, when a clock signal is received according to the first exemplary embodiment, the control IC 218 determines that the data section changes to the pause section if a high value and a low value alternate repeatedly in the data section, and the section in which one of the high value and the low value has the first time.

If it is determined that the pause section changes to the data section, the control IC 218 may receive a data signal that is received and transmitted during the data section through the data terminal 222. In this data section, A predetermined data signal can be transmitted from the CRUM unit to the imaging apparatus.

The control IC 218 can store or read data in an internal memory area according to the received / transmitted data signal.

As described above, according to an exemplary embodiment, the CRUM unit 210 'can operate without any separate power terminal, drawing energy from a clock signal that is received through the clock terminal 221. From this mode, the CRUM 210 'unit does not have to include a terminal for

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connect to a power terminal and, therefore, the size of the CRUM 210 'unit and the number of terminals can be reduced.

Figure 8B is a block diagram showing the configuration of a CRUM unit according to another exemplary embodiment. According to Figure 8B, the CRUM 210 'unit includes the first to third terminals 221, 222, 223, the power extraction circuit 214, an interface controller 217, the controller 215' and the memory 216.

The series of terminals 221, 222, 223 are connected to the series of contact points 121, 122 and 123. Specifically, the series of terminals 221, 222 and 223 may be the clock terminal 221, the data terminal 222 and ground terminal 223.

The clock terminal 221 may be electrically and physically connected to the clock terminal 121 of the main body 100.

The data terminal 222 may be electrically and physically connected to the data terminal 121 of the main body. And, the ground terminal 223 may be electrically and physically connected to the ground terminal 123 of the main body. Meanwhile, it has been shown that a series of terminals 221, 222, 223 are composed of three, but in the embodiment, the terminals may be composed of four. An example of four terminals will be explained in greater detail by referring to Figures 10 and 11.

The energy extraction circuit 214, when a clock signal is received through the clock terminal 221, extracts energy from the clock signal. The clock signal can have a different waveform according to a section of a data signal that is received / transmitted through the data terminal 222 of the main body, and can be performed in several ways.

According to the exemplary embodiment, the clock signal may have a first pulse width in the data section in which a data signal is received and transmitted, and may have a second pulse width that is different of the first pulse width in the pause section in which an information signal is not received and transmitted. In this case, it is desirable that the first pulse width be greater than the second pulse width.

In addition, the frequency of a clock signal in the data section may be different from the frequency of a clock signal in the pause section. Specifically, a clock signal may have a waveform in which a high value and a low value alternate repeatedly for a first predetermined unit of time in the pause section, and a high value and a low value alternate repeatedly during a second predetermined unit of time that is set to be greater than the first unit of time in the data section.

If a clock signal is received according to the previous embodiment by way of example, the energy extraction circuit 214 can extract high value energy in the pause section and the data section. In this case, the high value can be from 2V to 4V. In addition, the low value may exceed '0', but be less than the high value. Alternatively, the low value may be '0'.

The interface controller 217 is activated by the energy that is extracted by the energy extraction circuit 214. The interface controller 217 can transmit and receive data through at least one of the first to third terminals 221,222, 223 in accordance with A clock signal.

Specifically, when the clock signal is received through the clock terminal 221, the interface controller 217 can determine the time when the pause section changes to the data section or the data section changes to the section of pause.

Specifically, the interface controller 217, when a high value and a low value of a clock signal alternates repeatedly in the pause section, and a section in which one of a high value is maintained and a low value exceeds the first time, determines that the pause section changes to the data section.

The interface controller 217, when a high value and a low value of a clock signal alternates repeatedly in the data section, and a section in which one of a high value and a low value is maintained has the first time, determines that the data section changes to the pause section.

If it is assumed that the pause section changes to the data section, the interface controller 217 may receive a data signal that is received during the data section through the data terminal 222. In this data section, it is possible to transmit a predetermined data signal received to / from the image forming apparatus of the CRUM 210 unit.

Meanwhile, controller 215 'is energized and manages memory 216 according to a data signal that is received / transmitted from interface controller 217. That is, controller 215' can

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storing the data signal received from the interface controller 217 in memory 216, reads the data stored in memory 216, and receives / transmits the data signal to the imaging apparatus.

Figures 9A-9B are circuit maps showing a circuit of extraction of ene ^ a from the CRUM unit shown in Figure 7.

Referring to Figure 9A, the energy extraction unit 214 may be disposed between the clock terminal 221 and the controller 215. The energy extraction circuit 214 may extract energy from the clock signal provided by the power terminal. watch 221.

Specifically, the energy extraction circuit 214 may include a diode 214a and a capacitive element 214b. The diode 214a provides voltage above a predetermined power, from between the clock signal provided by the clock terminal 221, to the capacitive element 214b.

The capacitive element 214b is charged using the energy provided by the diode 214a, and provides the charged energy to each configuration in the CRUM 210. In this case, the capacitive element 214b can be an element such as a capacitor and a drum that can charge energy from outside.

Meanwhile, it has been described that the energy extraction circuit is constructed using diodes and the capacitive element, but for implementation, another type is available. Another exemplary embodiment will be explained by referring to Figure 9B.

Referring to Figure 9B, the energy extraction circuit 214 is composed of a switching element and a capacitive element.

The switching element includes a field effect transistor 214c and two resistors 214d. The switching element receives a clock signal from the clock terminal 221. The switching element can pass a clock signal that has a high value on / off according to the clock signal.

The capacitive element 214e can be charged by means of the clock signal that is passed from the switching element.

Fig. 10 is a block diagram showing the configuration of a CRUM unit according to another exemplary embodiment.

According to Figure 10, the CRUM 410 unit includes a series of terminals 421, 422, 423, 424, an energy extraction circuit 415, a controller 416 and a memory 417. In this case, the controller 416 and the memory 417 may be composed of an integrated circuit (IC).

The connection between the main body of the imaging apparatus 100 and the CRUM 410 can be specified with four terminals. Therefore, the CRUM 410 unit may include four terminals 421, 422, 423, 424 to be connected to four terminals 411,412, 413, 414 in the main body.

That is, according to an exemplary embodiment, the CRUM 410 unit extracts energy from a clock signal and, therefore, does not need to receive energy through the power terminal 423. However, as described above. Referring to Figure 5, the power terminal 423 that is connected to the power terminal 423 of the main body may be arranged in the CRUM 410 to meet the standard of the consumable unit 400 that includes four terminals, but the power terminal 423 can be kept in an inactive state. That is, the power terminal 423 can only be arranged to meet the standard of the consumable unit 400 and, therefore, cannot perform any operation with respect to the CRUM 410 unit.

The energy extraction circuit 415 extracts energy from a clock signal that is received through the clock terminal 421. In this case, the clock signal may have a different waveform according to whether it is a pause section in the one that does not receive a data signal or is a data section if a data signal is received, and can be done in several ways.

The various exemplary embodiments of a clock signal and a clock signal according to first and second exemplary embodiments are described and, therefore, no further description will be provided.

The controller 416 is activated by the energy that is extracted by the energy extraction circuit 415. The controller 416 can transmit / receive a data signal with the main body 100 through the data terminal 422.

Controller 416, when it is determined that the pause section changes to the data section, can receive / transmit the data signal according to the clock signal, and manage memory 417.

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In addition, controller 416, if it is determined that the data section changes to the pause section, can control the extraction circuit from January 15 to 15 so that it is removed from the clock signal in the pause section. .

As described above, according to an exemplary embodiment, the CRUM 410 unit includes a dummy terminal that is maintained in an inactive state, and can meet the specification of the consumable unit 400 composed of four terminals.

Meanwhile, the CRUM 410 unit can be mounted on a consumable unit consisting of four terminals that are currently marketed and can be compatible with the existing CRUM 410 unit.

Fig. 11 is a block diagram showing the configuration of a CRUM unit according to another exemplary embodiment.

According to Fig. 11, a CRUM 410 'unit includes a series of terminals 421, 422, 423, 424, the power extraction circuit 415, the controller 416', and the memory 417.

The body 100 connected to the CRUM 410 unit may be sized to four terminals 411, 412, 413 ', 414. Therefore, the CRUM 410' unit may include four terminals 421, 422, 423 ', 424. In this case, In an exemplary embodiment of Figure 10B, a data signal may be transmitted / received through two terminals. Specifically, the CRUM unit 410 'can receive / transmit the first data using the first data terminal 422, and transmit / receive the second data using the second data terminal 423'. As described above, according to the exemplary embodiment of Figure 10B, a data signal is received and transmitted through two terminals, and thus the data traffic between the CRUM unit and The body can be reduced.

Meanwhile, in the previous section, it has been explained that each of the second data terminal and the third data terminal 412, 413 'receives / transmits a data signal, but is not limited thereto. For example, by selecting one of the second data terminal and the third data terminal 412, 413 ', a data signal can be transmitted / received. If the size of a data signal is not large, a data signal can be received / transmitted using a terminal. In addition, data can be received using a terminal 412, and the data is also transmitted using another terminal 413 '.

The configuration of the energy extraction circuit 415, the controller 416 'and the memory 417 is the same as the configuration shown in Figure 10, so a duplicate explanation will not be provided.

When figures 10A and 10B are explained, it has been described that the CRUM unit includes only one controller, but during realization, the CRUM unit can be realized as a type that includes a series of controllers. Also, when the invention is made, the controller and the memory can be realized as an IC.

Figure 12A is a view to explain several sections of signal transmission between the body and the CRUM unit.

According to Figure 12A, a wave map of the data signal (SDA) and the clock signal (CLOCK) is shown.

The data signal (SDA) can be a signal that transmits data stored in the CRUM 210 unit to the body, or a signal that is transmitted from the body 100 and stored in the CRUM 210 unit. The actual information transmission section is a section for the transmission of data, and the section in which said information is not transmitted is an inactive section.

Specifically, the body of the imaging apparatus and the CRUM 210 unit need not be connected all the time. Accordingly, the body 100, when communication with the CRUM 210 unit is necessary, generates a clock signal and supplies the signal to the CRUM 210 unit. In this regard, the inactive section mentioned above can be referred to as a section for preparing Data transmission The data transmission section can be referred to as a section for data transmission. Meanwhile, the pause section mentioned above is a section between the data section within the data transmission section. As for the detailed clock wave in a data transmission section, it will be explained later with reference to Figure 12B.

The clock signal (CLOCK) is a signal used to determine the reception / transmission of a data signal, and in an area where a data signal is not normally received / transmitted, a body clock signal is not transmitted to the CRUM unit. However, in the exemplary embodiment, power is supplied to the CRUM unit using a clock signal, and in the section where no data is transmitted, a clock signal is generated and transmitted to the CRUM unit. Therefore, not only in the pause section, but in the inactive section, a clock signal having a pulse width that is different from that of the data section can be provided to the CRUM unit.

When access to the CRUM 210 is not necessary, for example, when an imaging device enters an energy saving mode or is turned off, the body 100 can change the clock signal (CLOCK) to "0" .

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Figure 12B is a view intended to explain various examples of a data signal, a clock signal and a waveform according to a decoding signal.

Fig. 12B is a view showing a data signal, a clock signal according to the first exemplary embodiment and a waveform of a decoding signal in which a clock signal is decoded.

According to Figure 12B, a clock signal can have different clock waveforms and different pulse widths in the pause section and the data section. Especially, the clock signal may have a first pulse width in the data section, and may have the second pulse width that is different from the first pulse width in the inactive section. In this case, it is desirable that the first pulse width be greater than the second pulse width.

Meanwhile, in a first inactive section, the clock signal has a waveform in which a high value and a low value alternate repeatedly in the first unit of time (t1). The CRUM unit can extract energy from a high value that is received during the first time in the first inactive section. In this case, the low value of the clock signal may be '0', and the high value of the clock signal may be 3.3 V, but it is not limited to this, the low value and the high value may vary depending on a model or specification of an image formation apparatus.

The data signal does not include substantial data in the first inactive section. However, in the first pause section, the data signal may have a waveform having one between a high value and a low value. The waveform of the data signal in the first inactive section can be set randomly, and can be set in the same way in other pause sections.

Meanwhile, when a high value and a low value of a clock signal alternate repeatedly during the first time unit (t1) in the first inactive section, and a section in which the low value of the clock signal exceeds First time (t1), the CRUM unit can determine that the point of time at which the first time (t1) is exceeded is the time at which reception / transmission of a data signal (A) begins. In this case, the time at which the reception / transmission of a data signal (A) begins may be a time in which an image-forming apparatus notifies the start of the reception of a data signal.

At the time the reception / transmission of a data signal (A) begins, the first inactive section may change to a first data section. In this case, a clock signal has a waveform in which a high value and a low value alternate repeatedly according to a second time (t2) that is set to be greater than the first time (t1).

In this case, it is desirable that the second time (t2) be twice as long as the first time (t1), but not limited to this. The second time (t2) may be a time when the energy sufficient to operate the CRUM unit for one cycle is extracted from a high value of a clock signal. When the second time (t2) is less than the time (t), the energy of the CRUM unit is depleted and, therefore, the CRUM unit cannot function. Consequently, the second time (t2) can be set to be equal to or greater than the time (t).

Meanwhile, when a high value and a low value of a clock signal alternate repeatedly in the first data section and the high value of the clock signal has the first time (t1), the CRUM unit can determine that the point The time in which the high value of the clock signal has the first time (t1) is a first section change time (B) in which the first data section changes to the first pause section.

Meanwhile, the time point at which the section changes to the first pause section is different from the moment when the section changes to inactive sections, when a high value and a low value of a clock signal alternate repeatedly during the second time unit (t2) in the first data section and the high value of the clock signal has the first time (t1), the CRUM unit can recognize that a data section is connected after the pause section. Accordingly, the CRUM unit can maintain an active state of a connection state with an image forming apparatus.

In the first pause section, a clock signal has a waveform in which a high value and a low value alternate repeatedly during the first time unit (t1).

When a high value and a low value of a clock signal alternate repeatedly in the first pause section and a section in which the high value of the clock signal is maintained exceeds the first time (t1), the CRUM unit can determine that the second section of data begins at the point of time at which the first time is exceeded (t1). Consequently, the CRUM unit can determine that the time point at which the high value of the clock signal exceeds the first time (t1) is a second section change time (C).

In the second data section, a clock signal has a waveform in which a high value and a low value alternate repeatedly during the second unit of time (t2).

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In the second data section, when a high value and a low value of a clock signal alternate repeatedly, and a high value of the clock signal has the first time (t1), the CRUM unit can recognize that the second section pause can be connected after the second section of data,

Therefore, the CRUM unit can recognize that the time point at which a high value of the clock signal has the first time (t1) is the time of change of the third section (D) that changes to the second section pause

Meanwhile, in the second pause section that is after the second data section, the clock signal has a wave in which a high value and a low value are repeated alternately with the first time cycle (t1). When the time at which a high value of the clock signal exceeds the second time (t2), the CRUM unit can recognize the time at which a high value exceeds the second time (t2) as a time at which the reception of a data signal (D ").

Based on the time at which the reception (D ") ends, the CRUM 210 unit is connected to the image forming apparatus in a standby mode, and the operation of receiving the data signal can be terminated. As described Previously, when the CRUM unit is connected to the image formation apparatus with a standby mode, the data signal is not received from the image formation apparatus, and therefore, the section changes to the second inactive section.

In Figure 12B, it has been described that two pause sections and two data sections are included respectively, but are not limited thereto. When the size of the data received and transmitted is large, the second pause section and the second data section can be included by repeating more than three times. Or, when the size of the data received or transmitted is small, the second pause section and the second data section may not be included.

As described above, a time point needs to be prepared with a length of a clock signal, and it is desirable for a stable reception and data transmission that the reception / transmission time be determined as the time at which the second time stays longer than the first time, and time exceeds the first time.

In the above description, it has been explained that a low section and a high section of a clock signal are equal to each other, but in a pause section, to the extent that the length of the low section and a high section is not greater than the first time, respectively, the length of the low section and the high section may be different in a range in which the length of the low section and the high section is not less than the second time.

Meanwhile, the CRUM unit can decode a data signal based on a clock signal and generate a decoding signal based on the result of the decoding. This decoding operation can be performed by the interface controller included in the CRUM unit.

According to Figure 12B, when a clock signal is received whose high value and low value change during the first unit of time (t1) such as in the first inactive section, the first pause section, and the second pause section , and the third pause section, a data signal is not received. Therefore, the CRUM unit generates a decoding signal to be one of "0" and "1". When a clock signal whose high value and low value exceed the first time (t1) such as in the first data section and the second data section is received, the CRUM unit may recognize that the section is a data section.

Consequently, in the first data section and the second data section, the CRUM unit generates a decoding signal that has a waveform in which "0" and "1" alternate repeatedly at each point where a high value and a low value of a clock signal exceed the first time (t1).

That is, the decoding signal shown in Figure 12B is consistently maintained as one of "0" and "1" in the first inactive section, the first pause section and the second pause section, and the third pause section, and has a waveform in which "0" and "1" alternate repeatedly according to the second time (t2) in the first data section and the second data section.

In Figure 12B, a low value included in a clock signal has a value of '0' in the data section and the pause section, but is not limited to them. That is, in the data section and in the pause section, the low value exceeds '0' and may be less than 3.3 V which is a high value. The decoding signal in this case may be the same as the decoding signal shown in Figure 12A.

In Figure 12B, the second pause section is connected after the second data section, but is not limited thereto. Specifically, according to the software that generates a clock signal, the second inactive section can be connected after the second data section.

Fig. 13 is a flow chart intended to explain an energy extraction method of a CRUM unit according to an exemplary embodiment. According to figure 13, the CRUM unit receives a signal

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clock which has a predetermined pulse width in the pause section (S1310), and extracts Jan ^ a from the clock signal (S1320).

Subsequently, when a data signal is received from the image forming apparatus (S1330), the CRUM unit receives a clock signal having a pulse width different from that of the pause section in the data section in which it is receives a data signal (S1340). In this case, the clock signal may have the first pulse width in the data section and a second pulse width that is different from the first pulse width in the pause section. It is desirable that the first pulse width of the clock signal be greater than the second pulse width.

Meanwhile, the CRUM unit extracts energy from the clock signal that is received in the data section (S1350).

The energy extraction method according to Figure 13 extracts energy from a clock signal having a different pulse width in the pause section and in the data section, respectively, and therefore, the CRUM unit can operate Without a separate power supply.

Figure 14 is a flow chart provided to explain an energy extraction method of a CRUM unit according to another exemplary embodiment. According to Figure 14, the CRUM unit receives a clock signal in which a high value and a low value alternate repeatedly during the first time unit in the pause section (S1410). In this case, the pause section may be a section in which a data signal is not received / transmitted from the image forming apparatus.

The CRUM unit extracts energy from a high value of a clock signal that is received in the pause section (S1420). For example, the high value of the clock signal may be 3.3 V. Consequently, during the first time in which the high value of the clock signal is received, 3.3 V of energy can be extracted, and use it as a power source for the CRUM unit.

Subsequently, when a data signal is received / transmitted from / to the imaging device (S1430), the CRUM unit receives a clock signal in which a high value and a low value are repeated during the second time unit in the data section in which a data signal is received (S1440). Specifically, when the data signal is received, the frequency of the clock signal can be changed in response. That is, if a high value and a low value change alternately during the first unit of time in the pause section, the high value and the low value of the clock signal can be changed alternately during the second unit of time in the pause section. data. In this case, it is desirable that the second time be twice as long as the first time.

The CRUM unit extracts energy from the high value of the clock signal that is received in the data section (S1450). Subsequently, if it is determined that the reception / transmission of the data signal has been completed (S1460), the CRUM unit switches to the pause section and performs step S1410.

On the other hand, if it is determined that the reception / transmission of the data signal has not been completed (S1460), step S1440 is carried out.

The energy extraction method of Figure 14 extracts energy from the high value of the clock signal in the pause section and the data section, respectively, and the CRUM unit can operate without a separate power supply.

The method of energy extraction according to the various exemplary embodiments described above may be encoded as software and recorded on a non-transient recordable medium. The non-transient recordable medium may be installed not only in an image forming apparatus, a consumable unit, a CRUM unit, but also in various types of apparatus, and, consequently, the authentication method or communication method described above may be performed on various devices.

The non-transient recordable medium refers to a medium that can store data semi-permanently instead of storing data for a short period of time, such as a register, a cache and a memory, and can be read by an apparatus. Specifically, the various applications and programs described above can be stored on the non-temporary recordable media such as CD, DVD, hard drive, Blu-ray disc, USB, memory card, ROM, etc. and supplied in it.

The above embodiments and advantages are merely by way of example, and should not be construed as limiting the present invention. This explanation can be easily applied to other types of devices. Likewise, the description of the exemplary embodiments of the present concept of the invention is intended to be illustrative, and not to limit the scope of the claims, and many alternatives, modifications and variations will be apparent to those skilled in the art.

Attention is directed to all publications and documents that are presented at the same time or prior to this specification in connection with this application and that are open for public inspection with this report.

descriptive, and the contents of all publications and documents are incorporated herein by reference.

All features disclosed in this specification (including any claim, summary and accompanying drawing), and / or all stages of any method or process explained in this way, may be combined in any combination, except in combinations in which at least Some of such features and / or stages are mutually exclusive.

Each feature disclosed in this specification (including the claims, summary and accompanying drawings) may be replaced by alternative features that serve the same, equivalent or similar purpose, unless expressly stated otherwise. Therefore, unless expressly stated otherwise, each disclosed feature is only an example of a generic series of equivalent or similar features.

Claims (17)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 1. A customer replaceable unit monitoring unit, CRUM, comprising: an extraction circuit of jan ^ a (214), configured to receive a clock signal from an image forming apparatus, extract the energy from a high value of the clock signal and store the energy expressed in a capacitive element (214b); Y a controller (215), configured to operate using extra energy, in which the clock signal is characterized in that a high value and a low value alternate repeatedly in a data section with a first frequency, and the high value and the low value alternate repeatedly in a pause section with a second frequency that is different from the first frequency, and wherein the controller (215) is configured to transmit a data signal if the high value and the low value of the clock signal alternate repeatedly with the first frequency. 2. The CRUM unit according to claim 1, wherein the second frequency is higher than the first frequency. 3. The CRUM unit according to claim 1, wherein the controller (215) is configured to receive the data signal if the high value and the low value of the clock signal alternate repeatedly with the first frequency. 4. The CRUM unit according to claim 3, wherein the controller (215) is configured to determine that the clock signal is in the data section based on a pulse width of one of the high value and the value under the clock signal. 5. The CRUM unit according to any of the preceding claims, wherein the controller (215) is configured to manage a memory (216) based on the received data signal. 6. The CRUM unit according to claim 1, wherein, if the high value and low value of the clock signal alternate repeatedly with the second frequency in the pause section and then the clock signal it goes to the data section in which the high value and the low value alternate repeatedly with the first frequency, the controller (215) is configured to determine that the pause section changes to the data section and transmit the signal of data to, or receive the data signal from, the image forming apparatus. 7. The CRUM unit according to claim 1, wherein, if the high value and the low value of the clock signal alternately alternate with the second frequency and then the clock signal goes to the section of data in which the high value and the low value alternate repeatedly with the first frequency, the controller (215) is configured to transmit the data signal to the imaging device or to receive the data signal from the training apparatus of image. 8. The CRUM unit according to claim 7, wherein the controller (215) is configured to determine that the pause section changes to the data section based on a pulse width of one of the high value and the value under the clock signal. 9. The CRUM unit according to claim 2, wherein the controller (215), if the high value and the low value of the clock signal alternate repeatedly in the pause section and a section in which one of the high value and the low value is maintained exceeds a first predetermined time, it is configured to determine that the pause section changes to the data section. 10. The CRUM unit according to claim 9, wherein the controller (215), if the high value and the low value of the clock signal alternate repeatedly in the data section and a section in which one of the high value and low value is maintained is less than or equal to the first predetermined time, it is configured to determine that the data section changes to the pause section. 11. The CRUM unit according to claim 2, wherein the controller (215), if the high value and the low value of the clock signal alternate repeatedly in an inactive section, and a section in which the value under the clock signal is kept exceeding a predetermined first time, it is configured to receive a data signal from the image forming apparatus. 12. The CRUM unit according to claim 11, wherein the controller (215), if the high value and the low value of the clock signal are alternately alternated with the first frequency or the second frequency and a section in the that the high value of the clock signal is maintained exceeds a second predetermined time that is greater than the first predetermined time, it is configured to determine that the data section or the pause section changes to the inactive section. 13. The CRUM unit according to claim 5, wherein the memory (216) and the controller (215) are incorporated into a single integrated chip, IC. 14. The CRUM unit according to any preceding claim, wherein the energy extraction circuit (214) comprises: a switching element (214c, d), configured to pass a clock signal having the high value between the received clock signals; Y 5 the capacitive element (214e), configured to be charged by the clock signal that passes from the switching element (2l4c, d), in which the switching element (214c, d) is a transistor (214c) and two resistors (214d). 15. The CRUM unit according to any one of claims 1 to 13, wherein the energy extraction circuit (214) further comprises: 10 a diode (241a), configured to pass a clock signal having the high value between the received clock signal, the capacitive element (214b), configured to be charged by the clock signal that passes from the diode (214a). 16. A consumable device, comprising: 15 a consumable unit (200), which is mounted on an image forming apparatus; and the CRUM unit (210) of any one of claims 1 to 15. 17. The consumable apparatus according to claim 16, the consumable unit (200) being any of an electrification device, a light exposure device, a developing device, a transfer device, a settlement device, a roller, a belt and an OPC drum.