WO2013023527A1 - 耗材芯片、耗材容器及耗材芯片蓄电单元的充电方法 - Google Patents

耗材芯片、耗材容器及耗材芯片蓄电单元的充电方法 Download PDF

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Publication number
WO2013023527A1
WO2013023527A1 PCT/CN2012/079482 CN2012079482W WO2013023527A1 WO 2013023527 A1 WO2013023527 A1 WO 2013023527A1 CN 2012079482 W CN2012079482 W CN 2012079482W WO 2013023527 A1 WO2013023527 A1 WO 2013023527A1
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Prior art keywords
charging
storage unit
power storage
consumable
control
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PCT/CN2012/079482
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English (en)
French (fr)
Inventor
秦正南
邓博韬
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珠海天威技术开发有限公司
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Publication of WO2013023527A1 publication Critical patent/WO2013023527A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/175Ink supply systems ; Circuit parts therefor
    • B41J2/17503Ink cartridges
    • B41J2/17543Cartridge presence detection or type identification
    • B41J2/17546Cartridge presence detection or type identification electronically
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0863Arrangements for preparing, mixing, supplying or dispensing developer provided with identifying means or means for storing process- or use parameters, e.g. an electronic memory

Definitions

  • the present invention relates to the field of printing, and more particularly to a consumable chip mounted on a printing consumable, a consumable container mounted with the consumable chip, and a charging method of the consumable chip storage unit.
  • the present invention is based on a Chinese patent application filed on Aug. 12, 2011, the application number of which is incorporated herein by reference.
  • the printer provides great convenience for modern office.
  • the existing printers are classified into inkjet printers and laser printers, which use ink cartridges containing ink as a consumable container to eject ink onto paper to form words or patterns to be printed on paper; laser printers use toner contained therein.
  • the toner cartridge acts as a consumable container to form a text or pattern on the media that needs to be printed.
  • a conventional color ink jet printer has a casing 11, and the ink jet printer shown in Fig. 1 omits the pallet of the casing 11.
  • the casing 11 is provided with a movement 12 of the ink jet printer, and a slide bar is provided.
  • the print carriage 14 reciprocates along the slide bar under the driving of the motor (not visible in Fig. 1).
  • An adapter plate (not visible in FIG. 1) is provided in the carriage 14 and the adapter plate is coupled to the movement 12 via a cable 13.
  • a plurality of ink cartridges 15 are detachably mounted on the print carriage 14, and different ink cartridges 15 contain inks of different colors.
  • the structure of the ink cartridge 15 is as shown in FIG.
  • the ink cartridge 15 has a casing 16 enclosing a cavity for accommodating ink, and a lower end of the cavity is provided with an ink outlet port 17, and ink in the cavity flows out through the ink outlet port 17 and supplies ink to the printing carriage 14 Ink supply.
  • a chip 18 is mounted on the outer wall of the housing 16 of the ink cartridge 15.
  • the chip 18 has a substrate, and one side of the substrate is provided with a plurality of electrical contacts 19 for electrical connection with the adapter plate.
  • the other side of the substrate is provided with an electronic module (not visible in Figure 2) that is electrically connected to the electrical contacts 19.
  • the electronic module is provided with a control unit 21, a memory 22, an interface unit 25, a power switching control circuit 26, and a power storage unit 27, wherein the interface unit 25 is for electrically connecting with the electrical contact 19, and the control unit 21 is passed through the interface unit.
  • 25 receives the information from the inkjet printer and transmits the information that needs to be sent to the inkjet printer through the interface unit 25.
  • the memory 22 includes a non-volatile memory 23, which is typically an EEPROM, and an EEPROM, which stores information related to the ink cartridge, including variable information and constant information, and the variable information is printed.
  • the information that changes constantly, such as the amount of ink remaining, the length of printing, etc., the constant information is information that does not change with the printing operation, such as the type of ink cartridge, the type of inkjet printer that is applicable, the color of the ink, and the like.
  • the volatile memory 24 is a memory such as an SRAM, which has a fast read/write speed and is used to temporarily store data written by the inkjet printer to the consumable chip. Since the stored data of the volatile memory 24 is lost after it is powered down, it is necessary to dump the stored data into the non-volatile memory 23 in time.
  • the power supply switching control unit 26 receives the power supply VDD supplied from the inkjet printer, and receives the power supplied from the power storage unit 27, which is a device that can be charged and has a power storage function such as a capacitor or a rechargeable battery.
  • the power supply switches the power supply strobe power supply VDD
  • the power supply VDD supplies power to the control unit 21, the memory 22, and the like
  • the power supply VDD charges the power storage unit 27.
  • the power switching control unit 26 turns on the power storage unit 27, discharges the power storage unit 27, and supplies power to the control unit 21 and the memory 22.
  • the control unit 21 temporarily disables the volatile memory 24.
  • the stored data is transferred to the nonvolatile memory 23.
  • the inkjet printer After the ink cartridge 15 is mounted to the printing carriage 14 of the inkjet printer, the inkjet printer powers up the chip 18, and reads the data stored in the memory of the chip 18, determines whether the ink cartridge 15 model is suitable, and whether the remaining ink amount in the ink cartridge 15 is sufficient. Wait. Since a plurality of ink cartridges 15 are mounted on the inkjet printer, in order to distinguish each of the ink cartridges 15, the identification code of the chip 18 is usually stored in the chip 18 of each ink cartridge 15, and the information sent by the inkjet printer includes the chip to be accessed. 18 identification code.
  • the control unit 21 of the chip 18 After receiving the information sent by the inkjet printer, the control unit 21 of the chip 18 extracts the identification code included in the information, and determines whether the identification code is the same as the identification code stored by the chip 18. If not, the operation is not performed, and only the judgment is received.
  • the identification code included in the information is the same as the identification code stored in the chip 18, and the corresponding operations, such as reading and writing data, are performed.
  • the conventional toner cartridge has a housing 31 that encloses a cavity for containing toner, and a chip mounting position 32 is provided on the outer wall of the housing, and the chip 33 is mounted on the chip mounting position 32.
  • the chip 33 of the toner cartridge also has a substrate on which the electrical contacts 34 are provided as communication units for data exchange with the laser printer.
  • an electronic module electrically connected to the electrical contact 34 is disposed on the other side of the substrate, and an interface unit, a control unit, a nonvolatile memory, a volatile memory, a power storage unit, and the like are also disposed on the electronic module.
  • most of the existing image forming apparatuses such as a copying machine, a facsimile machine, or an all-in-one machine are detachably mounted with a toner cartridge or a toner cartridge as a consumable container, and the consumable container has a cavity for accommodating the toner, and is on the outer wall of the consumable container. Set the chip on.
  • the power supply VDD supplies a limited current to the chip. If the power storage units of the plurality of ink cartridge chips are simultaneously charged, the power storage unit on each chip is caused. Get less power.
  • the inkjet printer quickly writes data to a chip, since the charging unit of the chip has a short charging time and a low charging voltage, the amount of charging is small, and the control unit cannot completely transfer the data of the volatile memory to the non-volatile memory. The requirements in the volatile memory affect the data dump operation of the chip, and also cause the data written by the inkjet printer to the chip to be lost.
  • the chip 33 on the toner cartridge may have a low charging voltage due to the charging voltage of the storage battery unit and a short charging time. The problem affects the work of the chip 33.
  • a chip mounted on a toner cartridge or a toner cartridge such as a copier, a facsimile machine, or an all-in-one has the same problem as the chip of the ink cartridge, that is, the power storage unit is charged less, and the data transfer of the chip cannot be satisfied.
  • a primary object of the present invention is to provide a consumable chip having a higher charging voltage of an electric storage unit.
  • Another object of the present invention is to provide a consumable container that avoids the inability of the volatile memory to be completely dumped into the non-volatile memory.
  • the consumable chip provided by the present invention comprises a substrate, the substrate is provided with a communication unit and an electronic module electrically connected with the communication unit, and the electronic module is provided with an interface unit, a control unit for receiving signals transmitted by the interface unit, and a memory electrically connected to the control unit, a power storage unit that supplies power to the control unit and the memory, wherein the electronic module is further provided with a charging control circuit that controls charging of the power storage unit, and the control unit is provided with a control signal sent to the charging control circuit.
  • the identification module stores the identification code of the consumable chip.
  • the electronic module is further provided with a power switching control circuit connected between the power storage unit and the control unit.
  • the charging control circuit has a switching device, and the control end of the switching device is connected to the output end of a logic circuit, and the input end of the logic circuit receives the control signal sent by the identification module.
  • a communication unit and an electronic module electrically connected to the communication unit are disposed on the substrate, the electronic module is provided with an interface unit, a control unit that receives signals transmitted by the interface unit, a memory electrically connected to the control unit, and supplies power to the control unit and the memory.
  • the charging power storage unit wherein the electronic module is further provided with a charging control circuit for controlling charging of the power storage unit, and the control unit is provided with an identification module for transmitting a control signal to the charging control circuit, and the identification module stores the identification code of the consumable chip.
  • the method for charging a consumable chip storage unit includes the control unit receiving information transmitted by the imaging device, and the identification module determining whether the identification code included in the information received by the control unit is stored in the identification module. The identification code is the same. If yes, a control signal is sent to the charging control circuit, the charging control circuit is turned on, and the storage device charges the power storage unit. If not, the identification module controls the charging circuit to be disconnected.
  • the consumable chip and the consumable container of the present invention are applied, and each consumable chip is charged by the imaging device to the electric storage unit only when the identification code included in the information sent by the imaging device is determined to be the same as the identification code stored by itself.
  • the device communicates with only one consumable chip at a time, so that only one power storage unit of the consumable chip is charged at the same time, so that the charging unit can be charged with a large charging current, thereby ensuring a higher charging voltage of the storage unit.
  • the voltage is prevented from meeting the work of data transfer due to the small amount of charge of the power storage unit.
  • the power storage unit can supply power to the control unit, the memory, and the like after the imaging device stops supplying power to the consumable chip, thereby avoiding premature discharge of the power storage unit and causing premature discharge.
  • the charging control circuit realizes the control of charging the power storage unit through the switching of the switching device, and is simple, convenient, and highly reliable.
  • the imaging device Since the consumable chip of the consumable container is verified by using the identification code, the imaging device simultaneously charges only the power storage unit of one consumable chip, thereby ensuring that the charging voltage of the power storage unit of each consumable chip is higher, the charging amount is larger, and the control unit is satisfied.
  • the data requirements of the volatile memory are transferred to the non-volatile memory to ensure that all data can be completely dumped.
  • the charging voltage of the storage unit is relatively current. Some charging voltages are improved, and the power storage unit can obtain a large amount of power in a short time, and meets the work requirement of the control unit to transfer the data of the non-volatile memory to the volatile memory.
  • FIG. 1 is a structural view of a conventional ink jet printer.
  • FIG. 2 is an enlarged view showing the structure of a conventional ink cartridge.
  • FIG 3 is an electrical block diagram of an existing ink cartridge chip electronic module.
  • Fig. 4 is an exploded perspective view showing a conventional toner cartridge.
  • FIG. 5 is an electrical block diagram of an electronic module in a first embodiment of the consumable chip of the present invention.
  • Figure 6 is an electrical schematic diagram of a power storage unit and a charge control circuit in a first embodiment of the consumable chip of the present invention.
  • Figure 7 is an electrical schematic diagram of a power storage unit and a charge control circuit in a second embodiment of the consumable chip of the present invention.
  • the consumable container of the present invention may be an ink cartridge mounted on an inkjet printer, or a toner cartridge or a toner cartridge mounted on a laser printer or a copying machine, a facsimile machine, an all-in-one machine, and the present invention will be described in detail below in conjunction with various embodiments. Description.
  • the consumable chip of this embodiment has a substrate, and one side of the substrate is provided with a plurality of electrical contacts as communication units for connection with electrical contacts of the inkjet printer.
  • the communication unit is an antenna for wireless communication.
  • An electronic module connected to the electrical contact is disposed on the other side of the substrate, and an electrical block diagram of the electronic module is shown in FIG. 5.
  • the electronic module is provided with a control unit 41, a memory 42, a power switching control circuit 45, a charging control circuit 46, an interface unit 47, and a power storage unit 48, wherein the memory 42 includes a nonvolatile memory 43 and a volatile memory 44.
  • the power supply switching control unit 45 is connected between the power storage unit 48 and the control unit 41, and can receive the power supply VDD and the direct current power supplied from the power storage unit 48, and supply power to the control unit 41 and the memory 42.
  • the power source VDD is a DC power source provided by an inkjet printer that provides DC power through a power contact in a plurality of electrical contacts of the consumable chip.
  • the electric storage unit 48 is a device that can store electric energy and can be repeatedly charged, such as a rechargeable battery or a capacitor.
  • the interface unit 47 is coupled to the electrical contacts and receives electrical signals from the electrical contacts.
  • the interface unit 47 is provided with a filter circuit, a delay circuit, and the like, and performs filtering, delay, and the like on the received electrical signal.
  • the control unit 41 is configured to receive the signal received by the interface unit 47, and determine, according to the received signal, what command is sent by the inkjet printer, and perform corresponding operations according to the command of the inkjet printer, such as to the non-volatile memory 43 or
  • the loss memory 44 writes data, reads data stored in the nonvolatile memory 43 or the volatile memory 44, and the like.
  • An identification module 49 is provided in the control unit 41, and an identification code of the chip is stored in the identification module 49. Since a plurality of ink cartridges are simultaneously mounted on the inkjet printer, in order for the inkjet printer to recognize a plurality of ink cartridges, an identification code identifying the ink cartridge and the chip is stored in the chip of each ink cartridge. For example, if four ink cartridges are installed on the inkjet printer, the four ink cartridges and their corresponding chips can be identified by using binary numbers 0000, 0001, 0010, and 0011, respectively, and these binary numbers are the identification codes of the chips.
  • the nonvolatile memory 43 is an EEPROM (Electrically Erasable Read Only Memory) or FLASH (Flash Memory), etc., which stores ink cartridge and ink related data, including the ink cartridge model, the applicable inkjet printer model, and the ink cartridge color of the ink cartridge. , ink remaining in the ink cartridge, etc.
  • EEPROM Electrically Erasable Read Only Memory
  • FLASH Flash Memory
  • the volatile memory 44 is a memory such as an SRAM, and the data is read and written faster, but the data stored after the power is lost will be lost for temporarily storing data written by the inkjet printer to the chip. Since the inkjet printer writes data at a relatively fast speed, if the control unit 41 directly writes the data to the non-volatile memory 43, the data may not be written because the data is written to the non-volatile memory 43 too slowly. Fully written, so after the control unit 41 receives the data that needs to be written to the non-volatile memory 43, the data to be written is first written into the volatile memory 44, after the inkjet printer stops supplying power to the chip, The control unit 41 writes the data stored in the volatile memory 44 back to the non-volatile memory 43.
  • the power storage unit 48 which operates independently of the ink jet printer is also provided, and its operation is controlled by the power supply switching control unit 45.
  • the power supply switching control unit 45 gates power supply from the power supply VDD to the control unit 41, the nonvolatile memory 43, the volatile memory 44, and the like, and charges the power storage unit 48 from the power supply VDD.
  • the power source switching control unit 45 detects that the ink jet printer stops supplying power to the chip, it strobes the power storage unit 48, and the power storage unit 48 supplies power to the control unit 41, the nonvolatile memory 43, and the volatile memory 44.
  • a voltage comparator is provided in the power supply switching control unit 45 to compare the voltage of the power supply VDD with the voltage of the power storage unit 48.
  • the high power is supplied to the control unit 41, the nonvolatile memory 43, and the volatile memory 44.
  • the power supply switching control unit 45 gates the power supply VDD or the power storage unit 48 by strobing different switching devices such as a triode, a field effect transistor, or the like.
  • a charging control circuit 46 is provided, which is connected to the power supply VDD and receives the voltage. At the same time, it is connected to the control unit 41 and receives the control signal transmitted by the control unit 41.
  • the charging control circuit 46 of the present embodiment is composed of a logic circuit U1 and a P-type field effect transistor Q1 as a switching device.
  • the logic circuit U1 is a NAND gate, and the two input terminals are respectively connected to the power supply VDD and the control unit 41.
  • An output terminal CON1 the output of the logic circuit U1 is connected to the gate of the FET Q1, that is, the control terminal, and the ON/OFF of the FET Q1 is controlled by outputting a high level and a low level. Since the voltage difference between the two ends of the P-type FET is small, it is easy to achieve conduction.
  • the drain of the field effect transistor Q1 is connected to the power source VDD, and the source is connected to the capacitor C1 as the power storage unit 48. Since the FET Q1 is a P-type FET, when the logic circuit U1 outputs a low-level signal, the power supply VDD charges the capacitor C1, and the FET Q1 turns off when the logic circuit U1 outputs a high level.
  • the transmitted information includes an identification code.
  • the chip After receiving the information transmitted by the inkjet printer, the chip extracts the identification code included in the information, and the identification module 49 determines the identification included in the information. Whether the code is the same as the identification code stored in the identification module 49, if the same, outputs a high level signal through the output terminal CON1 of the control unit 41. Since the inkjet printer accesses the chip, the chip is always powered, so VDD is high, that is, the two input terminals of the logic circuit U1 are high level signals, which output low level signals, and the field effect transistor Q1 leads The power supply VDD charges the capacitor C1.
  • the power supply VDD detected on other chips is at a low level.
  • the signal outputted by the logic circuit U1 is a high level, and the FET Q1 is turned off. . Therefore, before the identification module 49 performs the identification code determination, the charging control circuit determines whether the inkjet printer supplies power to the chip, and only the inkjet printer supplies power to the chip, allowing the power supply VDD to charge the capacitor, and also prevents the inkjet printer from stopping.
  • the field effect transistor Q1 is turned on to discharge the power of the power storage unit.
  • the identification module 49 determines that the identification code included in the signal received by the control unit 41 is different from the identification code stored by itself, and the output terminal CON1 of the control unit 41 outputs a low level.
  • logic circuit U1 is also output high level signal, FET Q1 is still off, power supply VDD does not charge capacitor C1.
  • the inkjet printer accesses only one chip at a time, that is, only one chip has the same identification code as that included in the information sent by the inkjet printer, so that only one chip of the power storage unit can be charged at the same time.
  • the charging voltage of the power storage unit is high, and a large amount of power can be obtained in a short time, and the operation of the control unit 41 to transfer the data in the volatile memory 44 to the nonvolatile memory 43 is satisfied, and the spraying is ensured.
  • the data written by the ink printer to the chip is not lost.
  • the embodiment has a substrate, and the substrate is provided with an electrical contact and an electronic module.
  • the electronic module has a control unit, an interface unit, a memory, a power storage unit, and the like, and is provided with a power switching control power and a charging control circuit.
  • the embodiment and the consumables Compared to the first embodiment of the chip, only the charge control circuit is changed.
  • the charging control circuit of the embodiment includes an N-type field effect transistor Q2 as a switching device, and a gate thereof, that is, a control terminal is directly connected to an output terminal CON2 of the control unit, and receives a control signal sent by the identification module, The control signal controls the on and off.
  • the drain and the source of the field effect transistor Q2 are connected to the power source VDD and the capacitor C2 as the power storage unit, respectively.
  • the identification module determines that the signal received by the control unit is the same as the identification code stored by itself, the high-level signal is output, the FET Q2 is turned on, and the power supply VDD provided by the inkjet printer charges the capacitor C2. If the identification module determines that the identification code included in the received information is different from the identification code stored by itself, a low level signal is output, and the power supply VDD is not allowed to charge the capacitor C2. In this way, it is also ensured that the inkjet printer can only charge the power storage unit of one chip at a time, ensuring a high charging voltage, and a large amount of charging in a short time, which satisfies the need for data transfer.
  • the embodiment has a casing, and the casing encloses a cavity for accommodating the ink.
  • An ink outlet port communicating with the cavity is disposed below the cavity, and the ink in the cavity can flow out through the ink outlet.
  • a consumable chip according to the above embodiment of the present invention is detachably mounted on an outer wall of the casing.
  • the embodiment has a casing enclosing a cavity for accommodating carbon powder, and one end of the cavity is provided with a powder outlet, and a consumable chip as described in the above embodiment is detachably mounted on the outer wall of the casing.
  • the above embodiment is only a preferred embodiment of the present invention, and there may be more changes in practical applications, for example, using a rechargeable battery instead of a capacitor as a power storage unit; or, without setting a power switching control circuit, The electric unit is powered to the control unit, the memory, etc. after being stopped from charging; or alternatively, the triode is used instead of the FET as a switching device or the like, and such a change can also achieve the object of the present invention.
  • the consumable chip allows the printer to charge the electric storage unit only when it is judged that the identification code included in the received information is identical to the identification code stored by itself. To ensure that at the same time, the printer only charges the power storage unit of a consumable chip, ensuring that the power storage unit can obtain a higher charging voltage in a short time, and store more electric energy to meet the work of data transfer.

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Abstract

公开了一种耗材芯片、耗材容器及耗材芯片蓄电单元的充电方法,该芯片具有电子模块,电子模块设有接口单元(47)、控制单元(41)、存储器(42)、蓄电单元(48)。其中,电子模块还设有控制蓄电单元充电的充电控制电路(46),且控制单元设有向充电控制电路发送控制信号的识别模块(49),该识别模块存储有耗材芯片的识别码。所述方法包括:控制单元接收成像装置发送的信息,识别模块判断控制单元所接收的信息中包含的识别码是否与存储在识别模块内的识别码相同,如是,向充电控制电路发送控制信号,充电控制电路导通,由成像装置向蓄电单元充电,如否,识别模块控制充电电路断开。如此确保蓄电单元的充电电压较高,避免蓄电单元充电量过小而影响数据转存操作。

Description

耗材芯片、耗材容器及耗材芯片蓄电单元的充电方法
本发明涉及打印领域,尤其是涉及一种安装在打印耗材上的耗材芯片、安装有这种耗材芯片的耗材容器以及这种耗材芯片蓄电单元的充电方法。本发明基于申请日为2011年8月12日、申请号为201110231647.1的中国发明专利申请,该申请的内容作为参考引入本文。
打印机作为常见的办公设备,为现代化办公提供了极大的方便。现有的打印机分为喷墨打印机以及激光打印机,喷墨打印机使用容纳有墨水的墨盒作为耗材容器向纸张喷射墨水,以在纸张上形成需要打印的文字或图案;激光打印机则使用容纳有碳粉的碳粉盒作为耗材容器在介质上形成需要打印的文字或图案。
参见图1,现有一种彩色喷墨打印机具有机壳11,图1所示的喷墨打印机省略了机壳11的托板。机壳11内设有喷墨打印机的机芯12,并设有一根滑杆,打印字车14在电机(图1中不可见)的带动下沿着滑杆往复运动。打印字车14内设有转接板(图1中不可见),转接板通过排线13连接至机芯12。
打印字车14上可拆卸地安装有多个墨盒15,不同墨盒15内容纳有不同颜色的墨水。墨盒15的结构如图2所示。墨盒15具有壳体16,壳体16围成容纳墨水的腔体,腔体的下端设有出墨口17,腔体内的墨水通过出墨口17流出,并向打印字车14的供墨针供墨。
墨盒15壳体16的外壁上安装有一块芯片18,芯片18具有基板,基板的一侧设有多个电触点19,用于与转接板电连接。基板的另一侧设有与电触点19电连接的电子模块(图2中不可见)。
参见图3,电子模块设有控制单元21、存储器22、接口单元25、电源切换控制电路26以及蓄电单元27,其中接口单元25用于与电触点19电连接,控制单元21通过接口单元25接收来自喷墨打印机的信息,并将需要发送给喷墨打印机的信息通过接口单元25发送出去。
存储器22包括非易失性存储器23及易失性存储器24,非易失性存储器23通常为EEPROM,其存储有与墨盒相关的信息,包括可变信息与不变信息,可变信息是随打印操作会不断变化的信息,如墨水余量、打印时长等信息,不变信息是不会随打印操作变化的信息,如墨盒型号、适用的喷墨打印机型号、墨水颜色等。易失性存储器24为SRAM等存储器,其读写速度较快,用于临时存储喷墨打印机向耗材芯片写入的数据。由于易失性存储器24掉电后,其存储的数据将会丢失,因此需要及时将其存储的数据转存至非易失性存储器23中。
电源切换控制单元26接收来自喷墨打印机提供的电源VDD,并且接收蓄电单元27提供的电源,蓄电单元27为电容或可充电电池等可充电且具有储电功能的器件。在喷墨打印机向芯片供电时,电源切换控制电源选通电源VDD,由电源VDD向控制单元21、存储器22等供电,并且电源VDD向蓄电单元27充电。喷墨打印机停止向芯片供电后,电源切换控制单元26选通蓄电单元27,由蓄电单元27放电并向控制单元21、存储器22供电,此时,控制单元21将易失性存储器24临时存储的数据转存至非易失性存储器23中。
墨盒15安装到喷墨打印机的打印字车14后,喷墨打印机给芯片18上电,并读取存储在芯片18存储器内的数据,判断墨盒15型号是否合适、墨盒15内剩余墨水量是否充足等。由于喷墨打印机上安装有多个墨盒15,为了区分每一个墨盒15,每个墨盒15的芯片18中通常存储有该芯片18的识别码,喷墨打印机发送的信息中包含有需要访问的芯片18的识别码。芯片18的控制单元21接收到喷墨打印机发送的信息后,提取信息中包含的识别码,判断该识别码是否与芯片18存储的识别码相同,若不相同,则不执行操作,只有判断接收的信息中包含的识别码与该芯片18所存储的识别码相同,才执行相应的操作,如读写数据等。
参见图4,现有碳粉盒具有壳体31,壳体31围成容纳碳粉的腔体,壳体的外壁上设有一个芯片安装位32,芯片33安装于芯片安装位32上。与墨盒的芯片类似,碳粉盒的芯片33也具有基板,基板上设有作为通讯单元的电触点34,用于与激光打印机进行数据交换。并且,基板的另一侧设有与电触点34电连接的电子模块,电子模块上也设置接口单元、控制单元及非易失性存储器、易失性存储器、蓄电单元等。
此外,现有大多数复印机、传真机或一体机等成像设备上均可拆卸地安装有碳粉盒或碳粉筒作为耗材容器,耗材容器具有容纳碳粉的腔体,且在耗材容器的外壁上设置芯片。
然而,相对于喷墨打印机而言,其上安装的墨盒较多,且电源VDD向芯片供电的电流有限,若对多个墨盒芯片的蓄电单元同时充电,导致每一芯片上的蓄电单元获得的电量较少。当喷墨打印机快速向一块芯片写入数据后,由于该芯片的蓄电单元充电时间短且充电电压较低,充电量较少,不能满足控制单元将易失性存储器的数据完全转存至非易失性存储器内的要求,影响芯片的数据转存操作,还会造成喷墨打印机向芯片写入的数据丢失的情况。
相对于安装在激光打印机上的碳粉盒而言,出于与墨盒同样的原因,碳粉盒上的芯片33也会存在因蓄电单元充电电压过低且充电时间短而充电量较少的问题,影响芯片33的工作。
安装在复印机、传真机或一体机等的碳粉盒或碳粉盒上的芯片也存在与墨盒的芯片相同的问题,即蓄电单元充电的电量较少,不能满足芯片的数据转存需要。
本发明的主要目的是提供一种蓄电单元充电电压较高的耗材芯片。
本发明的另一目的是提供一种避免易失性存储器的数据无法完全转存至非易失性存储器中的耗材容器。
本发明的再一目的是提供一种提高蓄电单元充电电压的耗材芯片蓄电单元充电方法。
为实现上述的主要目的,本发明提供的耗材芯片包括基板,基板上设有通讯单元以及与通讯单元电连接的电子模块,电子模块设有接口单元、接收接口单元所传送信号的控制单元、与控制单元电连接的存储器、向控制单元及存储器供电且可充电的蓄电单元,其中,电子模块还设有控制蓄电单元充电的充电控制电路,且控制单元设有向充电控制电路发送控制信号的识别模块,识别模块存储有耗材芯片的识别码。
一个优选的方案是,电子模块还设有连接于蓄电单元及控制单元之间的电源切换控制电路。
进一步的方案是,充电控制电路具有一开关器件,开关器件的控制端连接至一逻辑电路的输出端,逻辑电路的输入端接收识别模块发送的控制信号。
为实现上述的另一目的,本发明提供的耗材容器包括壳体,壳体围成容纳耗材的腔体,腔体下端设有耗材出口,壳体的外壁上安装有耗材芯片,耗材芯片具有基板,基板上设有通讯单元以及与通讯单元电连接的电子模块,电子模块设有接口单元、接收接口单元所传送信号的控制单元、与控制单元电连接的存储器、向控制单元及存储器供电且可充电的蓄电单元,其中,电子模块还设有控制蓄电单元充电的充电控制电路,且控制单元设有向充电控制电路发送控制信号的识别模块,识别模块存储有耗材芯片的识别码。
为实现上述的再一目的,本发明提供的耗材芯片蓄电单元充电方法包括控制单元接收成像装置发送的信息,识别模块判断控制单元所接收的信息中包含的识别码是否与存储在识别模块内的识别码相同,如是,向充电控制电路发送控制信号,充电控制电路导通,由成像装置向蓄电单元充电,如否,识别模块控制充电电路断开。
应用了本发明的耗材芯片及耗材容器,每一耗材芯片只有在判断成像装置发送的信息中所包含的识别码与自身存储的识别码相同时才会由成像装置向蓄电单元充电,由于成像装置每次只与一块耗材芯片进行通信,因此同一时刻下只有一块耗材芯片的蓄电单元充电,因而可以用较大充电电流给蓄电单元充电,从而能确保蓄电单元的充电电压为较高的电压,避免因蓄电单元充电量较少而无法满足数据转存的工作需要。
并且,通过电源切换控制电路的选择,能够让蓄电单元在成像装置停止向耗材芯片供电后才向控制单元、存储器等供电,避免蓄电单元过早放电而导致过早放电完毕。
此外,充电控制电路通过开关器件的通断来实现对蓄电单元充电的控制,实现简单、方便,且可靠性高。
由于耗材容器的耗材芯片使用识别码进行验证,成像装置同时仅对一块耗材芯片的蓄电单元进行充电,从而确保每一耗材芯片的蓄电单元充电电压较高,充电量较大,满足控制单元将易失性存储器的数据转存至非易失性存储器的电能要求,确保所有数据能够被完全转存。
应用本发明的耗材芯片蓄电单元的充电方法,由于同一时刻下成像装置仅对一个耗材芯片进行访问,也就是同一时刻下只有一块芯片的蓄电单元充电,蓄电单元的充电电压相对于现有的充电电压有所提高,蓄电单元能够在较短时间内获得较大的电量,满足控制单元将非易失性存储器的数据转存至易失性存储器的工作需要。
图1是现有一种喷墨打印机的结构图。
图2是现有墨盒的结构放大图。
图3是现有墨盒芯片电子模块的电原理框图。
图4是现有一种碳粉盒的结构分解图。
图5是本发明耗材芯片第一实施例中电子模块的电原理框图。
图6是本发明耗材芯片第一实施例中蓄电单元与充电控制电路的电原理图。
图7是本发明耗材芯片第二实施例中蓄电单元与充电控制电路的电原理图。
以下结合附图及实施例对本发明作进一步说明。
本发明的耗材容器既可以是安装在喷墨打印机上的墨盒,也可以是安装在激光打印机或复印机、传真机、一体机上的碳粉盒或碳粉筒,下面结合各实施例对本发明进行详细说明。
耗材芯片第一实施例及耗材芯片蓄电单元充电方法实施例:
本实施例的耗材芯片具有一块基板,基板的一面设有作为通讯单元的多个电触点,用于与喷墨打印机的电触点连接。当然,若喷墨打印机与耗材芯片之间为无线通讯,则通讯单元为用于无线通讯的天线。在基板的另一面设有与电触点连接的电子模块,电子模块的电原理框图如图5所示。
电子模块设有控制单元41、存储器42、电源切换控制电路45、充电控制电路46、接口单元47以及蓄电单元48,其中存储器42包括非易失性存储器43及易失性存储器44。
电源切换控制单元45连接于蓄电单元48与控制单元41之间,可接收电源VDD及蓄电单元48提供的直流电,并向控制单元41及存储器42供电。本实施例中,电源VDD是由喷墨打印机提供的直流电源,喷墨打印机通过耗材芯片多个电触点中的电源触点提供直流电源。蓄电单元48为可充电的电池或电容等具有储存电能作用且能够被反复充电的器件。
接口单元47与电触点连接,接收来自电触点的电信号。接口单元47设有滤波电路、延时电路等,对所接收的电信号进行滤波、延时等处理。
控制单元41用于接收接口单元47所接收的信号,并根据接收的信号判断喷墨打印机发送的是什么命令,根据喷墨打印机的命令执行相应的操作,如向非易失性存储器43或易失性存储器44写入数据、读取存储在非易失性存储器43或易失性存储器44中的数据等。
控制单元41内设有识别模块49,识别模块49内存储有芯片的识别码。由于喷墨打印机上同时安装有多个墨盒,为了让喷墨打印机识别多个墨盒,每一墨盒的芯片内存储有标识该墨盒及芯片的识别码。例如,喷墨打印机上安装有四个墨盒,则可以使用二进制数0000、0001、0010、0011分别标识四个墨盒及其对应的芯片,这些二进制数即为芯片的识别码。
非易失性存储器43为EEPROM(电可擦只读存储器)或FLASH(闪速存储器)等,其存储墨盒及墨水相关的数据,包括墨盒型号、适用的喷墨打印机型号、墨盒内容纳墨水颜色、墨盒内墨水余量等。
易失性存储器44为SRAM等存储器,其数据读写数据较快,但掉电后存储的数据将会丢失,用于临时存储喷墨打印机向芯片写入的数据。由于喷墨打印机写入数据的速度较快,若控制单元41接收数据后直接写入非易失性存储器43中,可能会因向非易失性存储器43写入数据速度太慢而导致数据无法完全写入,因此控制单元41接收需要写入到非易失性存储器43的数据后,先将需要写入的数据写入到易失性存储器44中,待喷墨打印机停止向芯片供电后,控制单元41将存储在易失性存储器44的数据写回非易失性存储器43中。
由于喷墨打印机向芯片发送数据后可能会停止向芯片供电,为了避免因芯片掉电而无法将存储在易失性存储器44内的数据转存至非易失性存储器43的情况发生,本实施例还设置独立于喷墨打印机工作的蓄电单元48,并由电源切换控制单元45控制其工作。在喷墨打印机向芯片提供直流电时,电源切换控制单元45选通由电源VDD向控制单元41、非易失性存储器43、易失性存储器44等供电,且由电源VDD向蓄电单元48充电。当电源切换控制单元45检测到喷墨打印机停止向芯片供电后,选通蓄电单元48,由蓄电单元48向控制单元41、非易失性存储器43、易失性存储器44供电。
由于蓄电单元48提供的电压通常低于喷墨打印机提供的直流电VDD的电压,因此在电源切换控制单元45内设置电压比较器,比较电源VDD的电压与蓄电单元48的电压,由电压较高的向控制单元41、非易失性存储器43、易失性存储器44供电。并且,电源切换控制单元45通过选通不同的开关器件,如三极管、场效应管等来选通电源VDD或蓄电单元48。
为了避免多个墨盒芯片的蓄电单元48同时充电,造成每一芯片上的蓄电单元48的充电电压过低,本实施例设置了一个充电控制电路46,其连接于电源VDD并接收电压,同时与控制单元41连接,接收控制单元41发送的控制信号。
参见图6,本实施例的充电控制电路46由逻辑电路U1及作为开关器件的P型场效应管Q1构成,逻辑电路U1为一个与非门,两个输入端分别连接电源VDD以及控制单元41的一个输出端子CON1,逻辑电路U1的输出端连接至场效应管Q1的栅极,即控制端,通过输出高低电平来控制场效应管Q1的通断。由于P型场效应管导通时两端电压差较小,易于实现导通。
场效应管Q1的漏极连接至电源VDD,源极连接至作为蓄电单元48的电容C1。由于场效应管Q1为P型场效应管,因此逻辑电路U1输出低电平信号时导通,电源VDD向电容C1充电,场效应管Q1在逻辑电路U1输出高电平时截止。
喷墨打印机对墨盒芯片进行访问时,发送的信息中包含有识别码,芯片接收到喷墨打印机发送的信息后,提取该信息所包含的识别码,识别模块49判断该信息中所包含的识别码是否与存储在识别模块49内的识别码相同,若相同,则通过控制单元41的输出端CON1输出高电平信号。由于喷墨打印机对芯片进行访问时,始终给芯片供电,因此VDD为高电平,即逻辑电路U1的两个输入端均为高电平信号,其输出低电平信号,场效应管Q1导通,电源VDD向电容C1充电。
喷墨打印机对某一墨盒芯片进行访问时,可能不向其他芯片供电,因此其他芯片上检测的电源VDD为低电平,此时逻辑电路U1输出的信号是高电平,场效应管Q1截止。因此,相当于在识别模块49进行识别码判断前,充电控制电路判断喷墨打印机是否向芯片供电,只有喷墨打印机向芯片供电,才允许电源VDD向电容充电,同时也可以防止喷墨打印机停止向芯片供电时场效管Q1导通而将蓄电单元电量放掉。
当然,即使喷墨打印机向某一芯片供电,但识别模块49判断控制单元41所接收的信号中,包含的识别码与自身存储的识别码不相同,控制单元41的输出端CON1输出低电平信号,逻辑电路U1也是输出高电平信号,场效应管Q1仍是截止,电源VDD不向电容C1充电。
可见,由于喷墨打印机同一时刻仅对一块芯片进行访问,也就是只有一块芯片的识别码与喷墨打印机发送的信息中包含的识别码相同,因此同一时刻下只有一块芯片的蓄电单元可以充电,该蓄电单元的充电电压较高,能够在短时间内获得较大的电量,满足控制单元41将易失性存储器44内的数据转存至非易失性存储器43的工作需要,确保喷墨打印机向芯片写入的数据不会被丢失。
耗材芯片第二实施例:
本实施例具有基板,基板上设有电触点及电子模块,电子模块具有控制单元、接口单元、存储器、蓄电单元等,并设有电源切换控制电量以及充电控制电路,本实施例与耗材芯片第一实施例相比,仅充电控制电路发生改变。
参见图7,本实施例的充电控制电路包括作为开关器件的N型场效应管Q2,其栅极,即控制端直接连接至控制单元的输出端CON2,并接收识别模块发送的控制信号,由该控制信号控制通断。场效应管Q2的漏极与源极分别连接至电源VDD及作为蓄电单元的电容C2。
在识别模块判断控制单元接收的信号中,包含的识别码与自身存储的识别码相同时,输出高电平信号,场效应管Q2导通,由喷墨打印机提供的电源VDD向电容C2充电,若识别模块判断接收的信息中包含的识别码与自身存储的识别码不相同,则输出低电平信号,不允许电源VDD向电容C2充电。这样,也能确保喷墨打印机同一时刻只能对一块芯片的蓄电单元进行充电,确保充电电压较高,短时间内的充电量较大,满足数据转存的需要。
墨盒实施例:
本实施例具有一个壳体,壳体围成一个容纳墨水的腔体,在腔体的下方设有与腔体连通的出墨口,腔体内的墨水可通过出墨口流出。并且,在壳体的一个外壁上可拆卸地安装有一块依据本发明上述实施例的耗材芯片。
碳粉盒实施例:
本实施例具有壳体,壳体围成容纳碳粉的腔体,腔体的一端设有出粉口,在壳体的外壁上可拆卸地安装一块如上述实施例所描述的耗材芯片。
当然,上述实施例仅是本发明较佳的实施方案,实际应用时还可以有更多的变化,例如,使用可充电的电池替代电容作为蓄电单元;或者,不设置电源切换控制电路,蓄电单元被停止充电后即向控制单元、存储器等供电;又或者,使用三极管替代场效应管作为开关器件等,这样的改变同样可以实现本发明的目的。
最后需要强调的是,本发明不限于上述实施方式,如非易失性存储器类型的改变、充电控制电路具体电路的改变、逻辑电路的改变等变化也应该包括在本发明权利要求的保护范围内。
根据本发明的耗材芯片及耗材容器、耗材芯片蓄电单元的充电方案,耗材芯片只有在判断接收的信息中包含的标识码与自身所存储的标识码相同时,才允许打印机向蓄电单元充电,确保在同一时刻下,打印机仅向一块耗材芯片的蓄电单元充电,确保蓄电单元能够在短时间内获得较高的充电电压,储存较多的电能,满足数据转存的工作需要。

Claims (12)

  1. 耗材芯片,包括
    基板,所述基板上设有通讯单元以及与所述通讯单元电连接的电子模块,所述电子模块设有接口单元、接收所述接口单元所传送信号的控制单元、与所述控制单元电连接的存储器、向所述控制单元及所述存储器供电且可充电的蓄电单元;
    其特征在于:
    所述电子模块还设有控制所述蓄电单元充电的充电控制电路;
    所述控制单元设有向所述充电控制电路发送控制信号的识别模块,所述识别模块存储有所述耗材芯片的识别码。
  2. 根据权利要求1所述的耗材芯片,其特征在于:
    所述电子模块还设有连接于所述蓄电单元及所述控制单元之间的电源切换控制电路。
  3. 根据权利要求1或2所述的耗材芯片,其特征在于:
    所述充电控制电路具有一开关器件,所述开关器件的控制端接收所述识别模块发送的控制信号。
  4. 根据权利要求1或2所述的耗材芯片,其特征在于:
    所述充电控制电路具有一开关器件,所述开关器件的控制端连接至一逻辑电路的输出端,所述逻辑电路的输入端接收所述识别模块发送的控制信号。
  5. 耗材容器,包括
    壳体,所述壳体围成容纳耗材的腔体,所述腔体下端设有耗材出口,所述壳体的外壁上安装有耗材芯片,所述耗材芯片具有基板,所述基板上设有通讯单元以及与所述通讯单元电连接的电子模块,所述电子模块设有接口单元、接收所述接口单元所传送信号的控制单元、与所述控制单元电连接的存储器、向所述控制单元及所述存储器供电且可充电的蓄电单元;
    其特征在于:
    所述电子模块还设有控制所述蓄电单元充电的充电控制电路;
    所述控制单元设有向所述充电控制电路发送控制信号的识别模块,所述识别模块存储有所述耗材芯片的识别码。
  6. 根据权利要求5所述的耗材容器,其特征在于:
    所述电子模块还设有连接于所述蓄电单元及所述控制单元之间的电源切换控制电路。
  7. 根据权利要求5或6所述的耗材容器,其特征在于:
    所述充电控制电路具有一开关器件,所述开关器件的控制端连接至一逻辑电路的输出端,所述逻辑电路的输入端接收所述识别模块发送的控制信号。
  8. 根据权利要求5或6所述的耗材容器,其特征在于:
    所述充电控制电路具有一开关器件,所述开关器件的控制端接收所述识别模块发送的控制信号。
  9. 耗材芯片蓄电单元的充电方法,所述耗材芯片具有控制单元、存储有耗材相关数据的存储器、蓄电单元及充电控制电路,所述控制单元设有存储所述耗材芯片识别码的识别模块,该方法包括
    控制单元接收成像装置发送的信息,识别模块判断控制单元所接收的信息中包含的识别码是否与存储在识别模块内的识别码相同,如是,向充电控制电路发送控制信号,充电控制电路导通,由成像装置向蓄电单元充电,如否,识别模块控制所述充电电路断开。
  10. 根据权利要求9所述的耗材芯片蓄电单元的充电方法,其特征在于:
    所述识别模块判断控制单元所接收的信息中包含的识别码是否与存储在识别模块内的识别码相同前,充电控制电路判断成像装置是否向耗材芯片供电,如是,在识别模块判断控制单元所接收的信息中包含的识别码与存储在识别模块内的识别码相同时允许成像装置向蓄电单元充电。
  11. 根据权利要求10所述的耗材芯片蓄电单元的充电方法,其特征在于:
    所述充电控制电路具有一开关器件,所述开关器件的控制端连接至一逻辑电路的输出端,所述逻辑电路的一个输入端接收所述识别模块发送的控制信号,所述逻辑电路的另一输入端接收成像装置提供的电信号。
  12. 根据权利要求10所述的耗材芯片蓄电单元的充电方法,其特征在于:
    所述充电控制电路具有一开关器件,所述开关器件的控制端接收所述识别模块发送的控制信号,并在所述控制信号的控制下导通或截止。
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