Ink box chip and ink box employing same

Abstract

The invention discloses an ink box chip which comprises a communication interface unit, a data conversion unit and a storing unit, wherein the communication interface unit is used for communicating with an imaging device in which the ink box is installed to receive or send ink amount information of a first format; the data conversion unit is used for converting the ink amount information of the first format to ink amount information of a second format, and the bit number contained in the second format is larger than the bit number contained in first format; the storing unit is used for restoring the ink amount information of the second format; when the imaging device needs to read the ink amount information of the ink box chip, the data conversion unit is also used for restoring the ink amount information of the second format stored in the storing unit to the ink amount information of the first format. As the bit number of the ink amount information stored in the storing unit is larger than that of the information received by the imaging device, the actual ink amount information cannot be accurately obtained when other illegal devices read the storing unit, so that the safety of data of the ink box chip is effectively protected.

Description

technical field [0001] The invention relates to the technical field of imaging and development, in particular to an ink box chip and an ink box using the chip. Background technique [0002] With the development of imaging technology, imaging devices such as copiers, printers, facsimile machines, and word processors have been widely used. The imaging unit includes user-replaceable ink cartridges that hold ink and printheads that image media. There is a specified amount of ink stored in the ink cartridge, and when the stored ink is used up, a new ink cartridge must be replaced in time. In order to avoid damage to the print head caused by the imaging device continuing to print after the ink in the ink cartridge is exhausted, the imaging device will calculate the ink amount information in the ink cartridge (remaining ink amount information or ink consumption information), and prompt the user to replace it when the ink is about to run out ink cartridges. [0003] Such ink leve...

AI Technical Summary

Problems solved by technology

[0004] However, the ink level information is important data that records the user's printing history, and it is actually only useful for verifying the ink level of the imaging device when stored in the chip.

Once the ink level information in the chip is read by others, personal data will be leaked, which may bring harm to users

In addition, in the existing chips, the ink level information is often directly stored in a fixed area of ​​the chip, which is easily tampered with, causing the imaging device to misread the ink level information, thereby threatening the security of equipment and information

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