Universal chip, communication method of universal chip, consumable container and imaging equipment

Abstract

The invention provides a universal chip for a consumable container, which comprises a memory unit, a control unit, an interface unit, a data acquisition unit and a state machine model selection unit, wherein the memory unit is used for storing information related to the consumable container, including parameter information and metrical information; the control unit is used for controlling the information access in the memory unit; the interface unit is used for providing an interface or a protocol for communication; the data acquisition unit is used for acquiring identification information of imaging equipment; and the state machine model selection unit is used for determining the model of the imaging equipment corresponding to the universal chip currently according to the identification information and a data operation state in which the universal chip is. The invention further provides a communication method of the universal chip, the consumable container with the universal chip and the imaging equipment. By adopting the universal chip, the communication method of the universal chip, the consumable container and the imaging equipment disclosed by the invention, the problem of failed matching between the universal chip and a printer resulted from cross of key authentication information is avoided; furthermore, the universal chip has individual service life.

Description

technical field [0001] The present invention relates to a general-purpose chip and a communication method thereof, in particular, to a general-purpose chip used for a consumable container and a method for communicating with an imaging device, and the present invention also relates to a consumable container on which the general-purpose chip is installed 1. An imaging device using the consumable container. Background technique [0002] The imaging equipment mentioned in the present invention refers to equipment that converts electrical signals such as characters and patterns into visible images on paper and other media, such as inkjet or laser printers, copiers, fax machines and multifunctional machines. [0003] The two commonly used printers are inkjet printers and laser printers. Inkjet printers use ink cartridges containing ink as consumable containers to provide printers with ink for printing to form text or patterns that need to be printed on paper; The toner cartridge...

AI Technical Summary

Problems solved by technology

[0007] Usually, the format of the key authentication command issued by the printer is the same, that is: 1 byte key authentication command + key authentication random data group, the key authentication of the same printer is the same, that is: the key authentication of the same printer model The request information is the same. Taking advantage of this feature, many manufacturers use various methods to obtain authentication codes to manufacture general-purpose chips for various types of printers. The general method is: obtain 1-byte key authentication information for authentication matching, Some manufacturers also set a data acquisition unit in the chip to collect a certain byte after the key authentication command (such as: "0X2B"), so that the printer can perform authentication matching, for example: you can choose the byte after the key authentication command The first byte, such as "0X8A" for type A printers, and "0XE8" for type B printers, this method can be used to manufacture consumable chips that are common to all types of printers - general-purpose chips; however, with the increasing number of printer models increase, the key authentication random information will inevitably cross. If the above method is still used for general chip authentication, there will often be confusion in the general chip selection of the printer model, resulting in the printer not being able to recognize the installed toner cartridge. General-purpose chip, the printer reports an error, which makes the toner cartridge unusable; moreover, since the general-purpose chip manufactured by this method is set with information suitable for a variety of printers, the consumable container with the general-purpose chip is used on a certain printer After completion, when it is installed on another printer for use, because the chip information of another printer corresponding to the universal chip has not been used and the information is still brand new, the printer will prompt that the consumable container can still be used, but the actual In general, the consumables in the consumables container have been used up and can no longer be used on another printer. If the general-purpose chip is suitable for N types of printers, the general-purpose chip has N lifespans. In this way, the use of the general-purpose chip is brought to the user. inconvenient

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