Consumable chip, consumable container and power supply method of consumable chip storage unit

Abstract

The invention provides a consumable chip, a consumable container and a power supply method of a consumable chip storage unit. The chip is provided with a substrate, a communication unit and an electronic module electrically connected with the communication unit are arranged on the substrate, the electronic module is provided with the storage unit and a power supply unit supplying power to the storage unit, the power supply unit is provided with a first capacitor and a second capacitor, and the capacitance value of the first capacitor is smaller than that of the second capacitor. The power supply unit is provided with a first switching device connected with the first capacitor in parallel, the first switching device is closed when the consumable chip loses power and the storage unit has no read-write operation, the power supply unit is provided with a second switching device connected with the first capacitor and the second capacitor, and the second switching device is closed when the voltage value of the second capacitor is higher than a threshold value and the storage unit has read-write operation. An ink box chip is arranged on a shell of the consumable container. A circuit is adopted in the power supply method of the consumable chip storage unit to power the storage unit. The transfer requirement of data of the storage unit can be met.

Description

technical field [0001] The invention relates to the field of printing, in particular to a consumable chip mounted on a printing consumable, a power supply method for the chip storage unit, and a consumable container equipped with the consumable chip. Background technique [0002] As a common office equipment, printers provide great convenience for modern office. Existing printers are divided into inkjet printers and laser printers. Inkjet printers use ink cartridges containing ink as consumable containers to spray ink on paper to form text or patterns that need to be printed on paper; laser printers use ink cartridges containing toner The toner cartridge is used as a consumable container to form text or patterns that need to be printed on the medium. [0003] see figure 1 , an existing color inkjet printer has a casing 11, figure 1 The inkjet printer is shown with the chassis 11 omitted. The machine core 12 of ink-jet printer is provided with in the casing 11, and is pro...

AI Technical Summary

Problems solved by technology

Moreover, the other side of the substrate is provided with an electronic module electrically connected to the electrical contact 34, and an interface unit, a control unit, a nonvolatile memory, a volatile memory, a power supply unit, etc. are also arranged on the electronic module, for the same reason The reason is that the chip 33 also has the problem that the power supply of the memory is insufficient after the laser printer stops power supply, which affects the data t...

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