WO2012071864A1 - Puce pour matériau de consommation et réceptacle pour matériau de consommation - Google Patents

Puce pour matériau de consommation et réceptacle pour matériau de consommation Download PDF

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Publication number
WO2012071864A1
WO2012071864A1 PCT/CN2011/074706 CN2011074706W WO2012071864A1 WO 2012071864 A1 WO2012071864 A1 WO 2012071864A1 CN 2011074706 W CN2011074706 W CN 2011074706W WO 2012071864 A1 WO2012071864 A1 WO 2012071864A1
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WIPO (PCT)
Prior art keywords
volatile memory
control unit
power
unit
switching device
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PCT/CN2011/074706
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English (en)
Chinese (zh)
Inventor
秦正南
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珠海天威技术开发有限公司
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Publication of WO2012071864A1 publication Critical patent/WO2012071864A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17543—Cartridge presence detection or type identification
    • B41J2/17546—Cartridge presence detection or type identification electronically

Definitions

  • the present invention relates to the field of printing, and more particularly to a consumable chip mounted on a printing consumable container and a consumable container mounted with the consumable chip.
  • the present invention is based on a Chinese patent application filed on Dec. 3, 2010, the entire disclosure of which is hereby incorporated 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.
  • the prior art ink cartridge has a housing 11 that encloses a cavity 15 in which the chamber 15 contains ink.
  • An ink outlet port 14 is provided below the casing 11, and the ink in the cavity 15 can flow out through the ink outlet port 14.
  • a consumable chip 13 is mounted on the outer wall of the casing 11. The structure of the consumable chip is as shown in FIG. 2.
  • the consumable chip 13 has a substrate 16, on which a plurality of electrical contacts 17 are provided, and the electrical contacts 17 serve as communication units. Connected to electrical contacts on the inkjet printer for information transfer.
  • An electronic module 18 is further disposed on the substrate 16. The electrical block diagram of the electronic module 18 is shown in FIG.
  • the electronic module is provided with a control unit 21, a memory 22, an interface unit 25 and a battery 26, wherein the memory 22 has a non-volatile memory 23 and a volatile memory 24.
  • the interface unit 25 is connected to the electrical contact 17 for data exchange with the inkjet printer control board, and the received signal is filtered, delayed, etc., and then transmitted to the control unit 21.
  • Control unit 21 is a logic circuit or microcontroller that controls access to data within memory 22.
  • the non-volatile memory 23 stores information relating to the ink cartridge, including the ink cartridge model, the applicable inkjet printer model, the ink color, the remaining amount of consumables in the cavity 15, the printing time of the ink cartridge, and the like.
  • the volatile memory 24 is used to temporarily store data for exchange with the inkjet printer. Since the read/write speed of the volatile memory 24 is much faster than the read/write speed of the nonvolatile memory 23, the volatile memory 24 is used. The storage of temporarily exchanged data can increase the speed of data exchange between the consumable chip 13 and the inkjet printer.
  • the control unit 21 stores the corresponding data in the nonvolatile memory 23 to the volatile memory 24, and the inkjet printer stops accessing the volatile memory 24.
  • the data modified by the inkjet printer is stored in the nonvolatile memory 23.
  • the battery 26 is used to supply power to the memory 22, the control unit 21, and the like. Since the inkjet printer stops accessing the consumable chip 13, the consumable chip 13 will not be powered, and the consumable chip 13 must use the electrical energy provided by the battery 26 to effect data movement.
  • the conventional toner cartridge has a housing 31 which encloses a cavity for accommodating toner, and a chip mounting position 32 is provided on the outer wall of the housing, and the consumable chip 33 is mounted on the chip mounting position 32.
  • the consumable 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.
  • the other side of the substrate is provided with an electronic module electrically connected to the electrical contact 34, and the electronic module is also provided with a battery, a volatile memory and a non-volatile memory.
  • 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.
  • the consumable chip sets the consumable chip on it.
  • the existing consumable chip uses a battery in addition to supplying power to the volatile memory and the non-volatile memory, and includes power supply to the control unit, the interface unit, and the like.
  • the control unit 21 stops accessing the volatile memory 24
  • the battery 26 will still supply power to the volatile memory 24, and the leakage current of the battery 26 will flow from the volatile memory 24 to
  • the control unit 21 and the nonvolatile memory 23 cause a large loss of electric energy, and the life of the battery 26 is short, resulting in the consumable chip 13 being unable to be used for a long time.
  • the consumable chip 33 mounted on the consumable container used for the image forming apparatus such as a copying machine, a facsimile machine, or an all-in-one is similar to the consumable chip 13 of the ink cartridge, and there is also a problem that the service life due to power loss is short.
  • a primary object of the present invention is to provide a consumable chip that avoids leakage current flowing from a volatile memory to a control unit and a non-volatile memory.
  • Another object of the present invention is to provide a consumable container in which a consumable chip can be used for a long period of time.
  • 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 non-volatile memory and a volatile memory connected to the control unit, wherein the power supply unit supplies power to the volatile memory, wherein the first diode is connected between the DC power supply end of the communication unit and the volatile memory, first The anode of the diode is connected to the DC power supply terminal, the cathode is connected to the volatile memory, and the electronic module is further provided with an isolation unit connected between the control unit and the volatile memory.
  • the isolation unit comprises at least one pair of soft switching devices.
  • Soft switching devices such as FETs, transistors, etc., allow current to flow only when they are turned on, and current cannot pass when turned off.
  • the electronic module further has a power control unit connected between the power supply unit and the volatile memory for controlling the continuity of the circuit between the power supply unit and the volatile memory.
  • 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 for receiving signals transmitted by the interface unit, a non-volatile memory connected to the control unit, and a volatile memory.
  • a power supply unit supplies power to the volatile memory, wherein a first diode is connected between the DC power supply end of the communication unit and the volatile memory, and the anode of the first diode is connected to the DC power supply end, and the cathode and the volatile
  • the memory module is connected, and the electronic module is further provided with an isolation unit connected between the control unit and the volatile memory.
  • the consumable chip of the present invention is provided with an isolation unit between the control unit and the volatile memory, which can isolate the leakage current flowing from the power supply unit to the volatile memory and the control unit, thereby avoiding power supply of the power supply unit. A large loss, extending the life of the consumable chip.
  • FIG. 1 is a schematic structural view of a conventional ink cartridge
  • FIG. 2 is an enlarged schematic view showing the structure of a conventional ink cartridge chip
  • FIG. 3 is an electrical block diagram of an existing electronic module of an ink cartridge chip
  • Figure 4 is a structural exploded view of 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.
  • FIG. 6 is an electrical schematic diagram of an isolation unit of an electronic module in a first embodiment of the consumable chip of the present invention
  • FIG. 7 is an electrical schematic diagram of a power control unit, a power switch, and a button battery of the electronic module in the first embodiment of the consumable chip of the present invention
  • FIG. 8 is an electrical schematic diagram of a power control unit and a rechargeable battery of an electronic module 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.
  • This embodiment has a substrate on one side of which is provided with a plurality of electrical contacts as communication units for connection to electrical contacts of the ink jet 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 an interface unit 41, a control unit 42, a nonvolatile memory 43, a volatile memory 44, an isolation unit 45, a power supply control unit 46, and a button battery 47 as a power supply unit. Further, a diode D1 is provided between the power source VDD and the volatile memory 44, and a diode D2 is connected between the button battery 47 and the power source control unit 46.
  • the power source VDD is a DC power source provided by the inkjet printer, and the inkjet printer supplies DC power through the power contacts of the plurality of electrical contacts of the consumable chip, and to the interface unit 41, the control unit 42, and the nonvolatile
  • the memory 43 is powered and powered by the diode D1 to the volatile memory 44.
  • a diode D1 is connected between the power supply VDD and the volatile memory 44.
  • the anode of the diode D1 is connected to the power supply VDD, and the cathode is connected to the volatile memory 44 to prevent the current supplied by the button battery 47 from being lost when the power supply VDD is stopped.
  • the memory 44 flows to the interface unit 41, the control unit 42, and the non-volatile memory 43 power port, thus generating additional power loss.
  • the interface unit 41 is connected to the electrical contacts and receives electrical signals from the electrical contacts.
  • the interface unit 41 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 42 is a microcontroller or logic circuit that is coupled to the interface unit 41 and exchanges data with the interface unit 41 while controlling access to data in the non-volatile memory 43 and the volatile memory 44.
  • the nonvolatile memory 43 is an EEPROM (Electrically Erasable Read Only Memory) or FLASH (Flash Memory) or OTP Memory (One Time Programmable Read Only Memory, one-time programmable read-only memory, etc., which stores data related to ink cartridges and consumable chips, including the type of ink cartridge, the type of inkjet printer that is suitable for use, the ink color of the ink cartridge, the ink remaining in the ink cartridge, etc. When the printer accesses the consumable chip, the stored data is sent to the volatile memory 44.
  • EEPROM Electrically Erasable Read Only Memory
  • FLASH Flash Memory
  • OTP Memory One Time Programmable Read Only Memory, one-time programmable read-only memory, etc.
  • the volatile memory 44 is an SRAM or DRAM or the like which is connected to the control unit 42 via the isolation unit 45 for temporarily storing data read and written by the ink jet printer and exchanging data with the ink jet printer at high speed.
  • the control unit 42 After the first time power of the consumable chip, the control unit 42 writes the initial data stored in the non-volatile memory 43 into the volatile memory 44, and the volatile memory 44 can be secured as long as the power provided by the button battery 47 is secured. The data is not lost, and the control unit 42 no longer writes the initial data stored in the non-volatile memory 43 to the volatile memory 44 when the printer is powered on next time, and the inkjet printer reads the data of the consumable chip later. It is read directly from the volatile memory 44.
  • the inkjet printer stops supplying power to the consumable chip once the data exchange with the consumable chip is completed, at which time the power supply VDD voltage is zero. Therefore, it is necessary to provide power to the volatile memory 44 at the consumable chip setting so that the volatile memory 44 can save the data after the inkjet printer stops supplying power to the consumable chip, so that the data stored in the volatile memory 44 is not Will be cleared.
  • the button battery 47 as the power supply unit supplies power to the volatile memory 44 through the diode D2 and the power source control unit 46.
  • the anode of the diode D2 is connected to the button battery 47, and the cathode of the diode D2 is connected to the power source control unit 46 to prevent the inkjet printer supply current from flowing to the button battery 47, thereby avoiding damage to the button battery 47.
  • the isolation unit 45 has a plurality of pairs of field effect transistors T1...Tn and TT1...TTn as soft switching devices, wherein T1...Tn are field effects connected between the output terminals of the volatile memory 44 and the control unit 42.
  • the tube, TT1...TTn is a field effect transistor connected between the input terminal of the volatile memory 44 and the control unit 42.
  • Each of the effect transistors T corresponds to one effect transistor TT, and constitutes a pair of input/output FETs, and the value of the number n of FETs T and TT depends on the number of pins of the control unit 42.
  • the gate of the FET T1 is connected to an output terminal Qout1 of the volatile memory 44, the drain is connected to the IO pin Q1 of the control unit 42, and the source is grounded.
  • the FET connection between the output terminal of the volatile memory 44 and the control unit 42 is the same as that of the FET T1.
  • the gate of the FET TT1 is connected to an IO pin Din1 of the control unit 42, the drain is connected to an input terminal Dout1 of the volatile memory 44, and the source is grounded.
  • the other way of connecting the FET between the control unit 42 and the input terminal of the volatile memory 44 is the same as that of the FET TT1.
  • the control unit 42 After the power chip is powered on, the power supply VDD voltage is not zero, and the IO pins Din1...Dinn of the control unit 42 output a high level signal or a low level signal under the control of the control unit 42, and the FETs TT1...TTn are guided. On or off, the control unit 42 outputs a signal to the volatile memory 44 and operates normally. At this time, the plurality of output terminals Qout1 . . . Qoutn of the volatile memory 44 also output a high level signal or a low level signal to the control unit 42 through the field effect transistors T1 . . . Tn, between the control unit 42 and the volatile memory 44. Perform normal data exchange.
  • the power supply VDD voltage is zero, all output terminals of the control unit 42 output a low level signal, and the FETs TT1...TTn are all turned off, and all output terminals of the volatile memory 44 are turned off.
  • the low-level signals are output, and the FETs T1...Tn are also turned off, and the current generated by the button battery 47 cannot flow from the volatile memory 44 to the control unit 42, and thus cannot flow into the non-volatile memory 43. In this way, the service life of the button battery 47 can be effectively extended, and the service life of the consumable chip is prolonged.
  • the button battery 47 supplies power to the volatile memory 44 after the first power-on of its actual use.
  • the button battery does not supply power to the volatile memory 44 to ensure The button battery 47 does not discharge for a long time in transportation, storage, etc., and consumes electric energy. Therefore, a power control unit 46 is provided between the button battery 47 and the volatile memory 44, and the electrical schematic of the power control unit 46 is as shown in FIG.
  • the power supply VDD in FIG. 7 is a DC power supply provided by an inkjet printer, which supplies power to the power supply control unit 46 through the diode D1.
  • a power supply output VDD1 Connected to the cathode of diode D1 in power supply control unit 46 is a power supply output VDD1 that is coupled to and powered by volatile memory 44.
  • the power supply output terminal VDD1 is connected to the gate of the field effect transistor TD1 as the first switching device through the resistor, and controls the on and off of the field effect transistor TD1.
  • the source of the FET TD1 is connected to the gate of the FET TD2 as the second switching device, and controls the switching of the FET TD2.
  • the drain of the FET TD2 is connected to the anode of the button battery 47 through the diode D2. Its source is connected to the power supply output terminal VDD1.
  • the power supply output terminal VDD1 is connected with a capacitor C1 for energy storage and filtering to prevent VDD1 from fluctuating greatly during the power supply VDD and battery power switching process
  • the FET TD1 is also connected with a filter capacitor C3 for preventing power supply interference.
  • the power supply VDD voltage is zero, and the voltage at the voltage output terminal VDD1 is also zero.
  • the gate of the FET TD1 is at a low level at point A, and the FET TD1 is turned off.
  • the current of the battery 47 flows to the capacitor C2 via the diode D2, and is at a high level at the point B.
  • the FET TD2 is a P-type FET, which is turned on when the gate is a low level signal and turned off when the high level signal is turned off. Therefore, before the consumable chip is powered up for the first time, the FET TD2 is turned off, and the button battery 47 does not supply power to the volatile memory 44.
  • the power supply VDD supplies power to the power output terminal VDD1 through the diode D1, and supplies power to the volatile memory 44.
  • the point A quickly becomes a high level, the FET TD1 is turned on, and the point B is connected to the ground, which is a low level, and the FET TD2 is also turned on.
  • the voltage of the power supply output terminal VDD1 is slightly higher than the voltage of the button battery 47 at this time, the diode D2 is not turned on, and the current is prevented from being poured into the button battery 47.
  • Capacitor C1 is used to store and filter VDD1.
  • Capacitors C2 and C3 are used to prevent power supply fluctuation or electromagnetic interference signal from erroneously triggering FETs TD1 and TD2 in power control unit 46.
  • the power supply VDD voltage is zero, but since the capacitors C1 and C3 store a certain amount of power, the point A is still at a high level, and the FET TD1 is still turned on, so the FET TD2 is also turned on. .
  • the diode D2 is turned on, and the battery 47 supplies power to the power supply output terminal VDD1.
  • the button battery 47 can be ensured to supply power to the power output terminal VDD1, thereby ensuring long-term power supply to the volatile memory 44.
  • the isolation unit 45 is provided between the volatile memory 44 and the control unit 42, it is ensured that the leakage current of the button battery 47 does not flow into the control unit 42 and the volatile memory 43 to prevent the life of the button battery 47 from ending prematurely. .
  • the button battery 47 can be removed after the end of the test to prevent the button battery 47 from supplying power to the volatile memory 44 after the test.
  • a power switch K can be provided on the chip test instrument, and the power switch K is connected between the point A and the ground. After the test is completed, the power switch K can be pressed. At this time, the A point is grounded, the level is low, the FET TD1 is cut off, the FET TD2 is also cut off, and the button battery 47 stops supplying power to the power output terminal VDD1 to avoid electric energy. waste.
  • the embodiment has a substrate, the substrate is provided with an electrical contact and an electronic module connected to the electrical contact, the electronic module is provided with an interface unit, a control unit connected with the interface unit, and a non-volatile memory and a volatile
  • the memory is provided with an isolation unit between the volatile memory and the control unit.
  • the electronic module is further provided with a rechargeable battery as a power supply unit, and a power control unit is connected between the rechargeable battery and the volatile memory, and an electrical schematic diagram of the rechargeable battery and the power control unit is shown in FIG. 8 .
  • the DC power supply VDD provided by the inkjet printer to the consumable chip supplies power to the power control unit 52 via the diode D3, wherein VDD2 is the power output terminal, and supplies power to the volatile memory.
  • the power supply output terminal VDD2 is connected to the gate of the FET TD3 through a resistor, and the drain of the FET TD3 is connected to the gate of the FET TD4 as the second switching device.
  • the source of the FET TD4 is connected to the power supply terminal VDD2, and the drain is connected to the positive electrode of the rechargeable battery through the current limiting resistor R1.
  • the gates of the FETs TD3 and TD4 are their control terminals, and the drain of the FET TD3 is its output terminal.
  • the FET TD4 After the inkjet printer supplies power to the consumable chip, the FET TD4 is turned on, and the power supply VDD can charge the rechargeable battery 51 via the FET TD4 and the current limiting resistor R1. After the inkjet printer stops supplying power, the rechargeable battery 51 can continuously supply power to the power output terminal VDD2, ensuring that the volatile memory is charged for a long period of time.
  • 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, and the casing encloses a cavity for accommodating the carbon powder, and one end of the cavity is provided with a powder discharging port.
  • a consumable chip is detachably mounted on the outer wall of the casing.
  • the consumable chip is provided with an isolation unit between the control unit and the volatile memory to prevent leakage current of the battery from flowing to the control unit, as described in the above embodiment of the consumable chip.
  • Non-volatile memory ensures long life of consumable chips.
  • a triode or a photocoupler is used as a soft switching element in the isolation unit; or, power control In the unit, a triode is used instead of the FET as the switching element, and the base of the triode is extremely controlled, and the collector and the emitter of the triode are extremely output.
  • the isolation unit is provided, the leakage current of the power supply unit does not flow into the control unit and the non-volatile memory, thereby ensuring that the power supply unit can be used for a long time and extended. The life of the consumable chip.

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  • Ink Jet (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

La présente invention porte sur une puce de matériau de consommation et un réceptacle pour matériau de consommation. La puce de matériau de consommation est équipée d'une base, sur laquelle une unité de communication et un module électronique connecté électriquement à l'unité de communication sont disposés. Le module électronique est équipé d'une unité d'interface (41), d'une unité de commande (42) destinée à recevoir un signal envoyé à partir de l'unité d'interface (41), et d'une mémoire non-volatile (43) et d'une mémoire volatile (44) qui sont reliées à l'unité de commande (42) respectivement. Une unité d'alimentation électrique (47) est prévue de façon à alimenter en courant électrique la mémoire volatile (44). Une première diode (D1) est connectée entre une alimentation en courant continu de l'unité de communication et la mémoire volatile (44), une anode de la diode est connectée à l'alimentation en courant continu et une cathode de celle-ci est reliée à la mémoire volatile (44). Le module électronique est en outre équipé d'une unité d'isolation (45) qui est connectée entre l'unité de commande (42) et la mémoire volatile (44).
PCT/CN2011/074706 2010-12-03 2011-05-26 Puce pour matériau de consommation et réceptacle pour matériau de consommation WO2012071864A1 (fr)

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CN2010105729772A CN102152641A (zh) 2010-12-03 2010-12-03 耗材芯片及耗材容器
CN201010572977.2 2010-12-03

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CN103085486B (zh) * 2011-11-02 2015-11-25 珠海艾派克微电子有限公司 电路基板、成像盒、成像装置及电路基板的供电方法
CN102744970A (zh) * 2012-07-10 2012-10-24 辉芒微电子（深圳）有限公司 一种高速墨盒芯片
CN104943396B (zh) * 2015-06-18 2018-07-03 杭州旗捷科技有限公司 一种打印机墨盒、墨盒芯片
CN113524918B (zh) * 2021-06-22 2023-05-02 珠海天威技术开发有限公司 墨盒芯片、墨盒及喷墨打印机
CN114987058B (zh) * 2022-06-27 2023-05-02 珠海天威技术开发有限公司 耗材芯片及其数据读写方法、耗材容器

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