CN113671807A - USB consumable identification method for printer, consumable equipment and printer - Google Patents

USB consumable identification method for printer, consumable equipment and printer Download PDF

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Publication number
CN113671807A
CN113671807A CN202110931544.XA CN202110931544A CN113671807A CN 113671807 A CN113671807 A CN 113671807A CN 202110931544 A CN202110931544 A CN 202110931544A CN 113671807 A CN113671807 A CN 113671807A
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CN
China
Prior art keywords
consumable
printer
main control
control board
voltage
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Pending
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CN202110931544.XA
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Chinese (zh)
Inventor
张志龙
姜晓光
杨香玉
颜志鑫
李�远
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Beijing Chenguang Rongxin Technology Co ltd
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Beijing Chenguang Rongxin Technology Co ltd
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Priority to CN202110931544.XA priority Critical patent/CN113671807A/en
Publication of CN113671807A publication Critical patent/CN113671807A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0863—Arrangements for preparing, mixing, supplying or dispensing developer provided with identifying means or means for storing process- or use parameters, e.g. an electronic memory
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/14—Electronic sequencing control
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1642—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
    • G03G21/1652—Electrical connection means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1839—Means for handling the process cartridge in the apparatus body
    • G03G21/1867—Means for handling the process cartridge in the apparatus body for electrically connecting the process cartridge to the apparatus, electrical connectors, power supply
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1875—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit provided with identifying means or means for storing process- or use parameters, e.g. lifetime of the cartridge
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1875—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit provided with identifying means or means for storing process- or use parameters, e.g. lifetime of the cartridge
    • G03G21/1878—Electronically readable memory
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1875—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit provided with identifying means or means for storing process- or use parameters, e.g. lifetime of the cartridge
    • G03G21/1878—Electronically readable memory
    • G03G21/1889—Electronically readable memory for auto-setting of process parameters, lifetime, usage
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1875—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit provided with identifying means or means for storing process- or use parameters, e.g. lifetime of the cartridge
    • G03G21/1878—Electronically readable memory
    • G03G21/1892—Electronically readable memory for presence detection, authentication

Abstract

The invention provides a USB consumable identification method for a printer, consumable equipment and the printer. The USB consumable identification method for the printer comprises the following steps: s1, the consumable chip on the carbon powder box and/or the selenium drum is connected with the main control board in a communication way through USB equipment; s2, the consumable chip generates random data; moreover, the consumable chip encrypts the identity verification code of the consumable chip by an encryption algorithm to generate identity verification code encryption information; s3, the consumable chip encodes the identity verification code encryption information into random data; and S4, the main control board receives the random data, extracts the authentication code encryption information and decrypts to identify the consumable chip identity information. The problem that the anti-theft encryption requirement of printer equipment cannot be met due to the fact that the transmission data volume of printer consumable equipment in the prior art is small is solved.

Description

USB consumable identification method for printer, consumable equipment and printer
Technical Field
The invention relates to the technical field of printer consumable identification, in particular to a USB consumable identification method for a printer, consumable equipment and a printer.
Background
In order to ensure the normal operation of the printer and effectively prevent the piracy. Existing printers all require consumable identification equipment. However, the existing device is limited by the transmission data amount of the printer device, so that the existing method and device cannot provide enough authentication capability, and the anti-theft capability of the printer device is insufficient and easy to crack.
For example, in the prior art, all consumable devices adopted in patent document No. CN1547824A adopt IIC interfaces, so that the amount of data that can be transmitted is very limited, and complicated anti-theft encryption cannot be implemented.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the problem that the transmission data volume of the printer consumable device in the prior art is small and cannot meet the requirement of anti-theft encryption of the printer device, so as to provide a USB consumable identification method for a printer, which includes the following steps:
s1, the consumable chip on the carbon powder box and/or the selenium drum is connected with the main control board in a communication way through USB equipment;
s2, the consumable chip generates random data; moreover, the consumable chip encrypts the identity verification code of the consumable chip by an encryption algorithm to generate identity verification code encryption information;
s3, the consumable chip encodes the identity verification code encryption information into the random data;
and S4, the main control board receives the random data, extracts the authentication code encryption information and decrypts to identify the identity information of the consumable chip.
Optionally, the encoding rule of the consumable chip is recorded in an on-chip flash of the consumable chip; and the main control board reads the coding rule of the flash in the chip through a consumable program.
Optionally, the method for identifying USB consumables for a printer further includes the following steps:
and (3) humidity detection and adjustment: detecting the humidity of the carbon powder in the carbon powder box through a humidity sensor, and sending humidity information to the main control board; the main control board adjusts the heating temperature and/or heating time of the fixer according to the humidity information;
when the humidity of the carbon powder in the carbon powder box is higher than a preset value, the heating temperature and/or the heating time of the fixer are/is increased; and/or the presence of a gas in the gas,
when the humidity of the carbon powder in the carbon powder box is lower than a preset value, the heating temperature and/or the heating time of the fixer are/is reduced.
Optionally, in the humidity detection and adjustment step,
the consumable chip is in communication connection with the humidity sensor, and sends humidity information to the main control panel.
Optionally, the method for identifying USB consumables for a printer further includes the following steps:
voltage detection and adjustment: detecting the voltage of a charging roller in the toner cartridge through a voltage sensor, and sending the voltage information of the charging roller to the main control board; the main control board adjusts the charging voltage value of the charging roller according to the charging roller voltage information;
when the voltage of the charging roller is higher than a preset value, a charging mechanism for charging the charging roller reduces the charging voltage value;
and when the voltage of the charging roller is lower than a preset value, the charging mechanism for charging the charging roller increases the charging voltage value.
Optionally, in the voltage detection and adjustment step,
the consumable chip is in communication connection with the voltage sensor, and sends charging roller voltage information to the main control board.
A printer consumable device comprising:
the consumable chip is arranged on the toner cartridge and/or the toner cartridge;
and the main control board is in communication connection with the consumable chip through USB equipment so as to receive the authentication code encryption information coded in the random data sent by the consumable chip, extract the authentication code encryption information from the random data, and decrypt the authentication code encryption information to identify the identity information of the consumable chip.
Optionally, the printer consumable device further includes:
the humidity sensor is used for detecting the humidity of the carbon powder in the carbon powder box and sending humidity information to the main control board through the consumable chip;
the main control board adjusts the heating temperature and/or heating time of the fixer according to the humidity information.
Optionally, the humidity sensor is disposed on a wall of the inner cavity of the toner cartridge.
Optionally, the printer consumable device further includes:
the voltage sensor is used for detecting the voltage of the charging roller in the toner cartridge and sending the voltage information of the charging roller to the main control board;
and the main control board adjusts the charging voltage value of the charging roller according to the charging roller voltage information.
Optionally, the voltage sensor is disposed on a charging roller in the toner cartridge.
The invention has the beneficial effects that:
1. the invention provides a USB consumable identification method for a printer, which comprises the following steps: s1, the consumable chip on the carbon powder box and/or the selenium drum is connected with the main control board in a communication way through USB equipment; s2, the consumable chip generates random data; moreover, the consumable chip encrypts the identity verification code of the consumable chip by an encryption algorithm to generate identity verification code encryption information;
s3, the consumable chip encodes the identity verification code encryption information into the random data;
and S4, the main control board receives the random data, extracts the authentication code encryption information and decrypts to identify the identity information of the consumable chip.
The printer replaces the existing IIC interface through USB equipment, so that the communication connection between the main control board and one or both of the toner cartridge and the toner cartridge is realized, and the data transmission quantity between the printer consumable and the printer is effectively increased. The increase in the amount of transmitted data may effectively enable the printer device to use more sophisticated anti-theft encryption measures, and the above-described USB device may also be used to transmit other information to increase the functionality of the printer. In the invention, a consumable chip of a printer generates random data; and the consumable chip encrypts the identity verification code thereof through an encryption algorithm to generate identity verification code encryption information. The encryption information is randomly coded into random data in the mode, so that a cracker is confused, the decoding difficulty is increased, and the anti-theft encryption capacity of the printer consumable is effectively improved.
2. The USB consumable identification method for the printer provided by the invention has the advantages that the coding rule of the consumable chip is recorded in the on-chip flash of the consumable chip; and the main control board reads the coding rule of the flash in the chip through a consumable program.
The coding rule is set as a private rule and is programmed into the on-chip flash of the consumable chip along with the consumable chip program, and the on-chip flash cannot be read by an external device and can only be accessed by the consumable chip program. By the method, a cracker can be prevented from reading the flash data to perform decompiling analysis, so that the anti-theft encryption capacity of the printer consumable is further improved.
3. The USB consumable identification method for the printer further comprises the following steps: and (3) humidity detection and adjustment: detecting the humidity of the carbon powder in the carbon powder box through a humidity sensor, and sending humidity information to the main control board; the main control board adjusts the heating temperature and/or heating time of the fixer according to the humidity information; when the humidity of the carbon powder in the carbon powder box is higher than a preset value, the heating temperature and/or the heating time of the fixer are/is increased; and/or when the humidity of the carbon powder in the carbon powder box is lower than a preset value, the heating temperature and/or the heating time of the fixer are/is reduced.
The humidity sensor can effectively detect the humidity of the carbon powder in the carbon powder box, so that the main control board can adjust the heating temperature and the heating time of the fixer in real time according to the humidity information, and the drying of the carbon powder is ensured to ensure the fixing effect.
4. In the humidity detection and adjustment step, the consumable chip is in communication connection with the humidity sensor and sends humidity information to the main control board.
In the invention, the USB equipment replaces the existing IIC interface, so that the communication connection between the carbon powder box and the selenium drum or the communication connection between one of the carbon powder box and the selenium drum and the main control board is realized, the data transmission quantity is increased, the consumable chip can send the encrypted identity verification code and the carbon powder humidity information to the main control board, and the main control board can control the heating temperature and the heating time of the fuser in real time, so that the drying of the carbon powder is ensured to ensure the fusing effect.
5. The USB consumable identification method for the printer further comprises the following steps:
voltage detection and adjustment: detecting the voltage of a charging roller in the toner cartridge through a voltage sensor, and sending the voltage information of the charging roller to the main control board; the main control board adjusts the charging voltage value of the charging roller according to the charging roller voltage information; when the voltage of the charging roller is higher than a preset value, a charging mechanism for charging the charging roller reduces the charging voltage value; and when the voltage of the charging roller is lower than a preset value, the charging mechanism for charging the charging roller increases the charging voltage value.
The voltage sensor can effectively detect the voltage of the charging roller in the toner cartridge, so that the main control board can adjust the charging voltage value of the charging roller in real time according to the voltage information to ensure the voltage stability of the charging roller.
6. In the voltage detection and adjustment step, the consumable chip is in communication connection with the voltage sensor and sends the voltage information of the charging roller to the main control board
In the invention, the USB equipment replaces the existing IIC interface, so that the communication connection between the main control board and one or both of the carbon powder box and the toner cartridge is realized, the data transmission quantity is increased, the consumable chip can send the charging roller voltage value information to the main control board while sending the encrypted identity verification code, and the main control board can control the charging voltage of the charging mechanism in real time, thereby ensuring the stability of the charging roller voltage value.
7. The invention provides printer consumable equipment, which comprises: the consumable chip is arranged on the toner cartridge and/or the toner cartridge; and the main control board is in communication connection with the consumable chip to receive the authentication code encryption information coded in the random data and sent by the consumable chip, extract the authentication code encryption information from the random data, and decrypt the authentication code encryption information to identify the identity information of the consumable chip.
According to the printer consumable equipment, the carbon powder box and the consumable chip of the selenium drum are in communication connection with the main control panel through the USB equipment, so that the data transmission quantity between the printer consumable and the printer is effectively increased. The increase in the amount of data transmitted not only effectively enables the printer device to use more sophisticated anti-theft encryption measures, but the USB device described above can also be used to transmit other information to increase the functionality of the printer.
8. The invention provides printer consumable equipment, which further comprises: the humidity sensor is used for detecting the humidity of the carbon powder in the carbon powder box and sending humidity information to the main control board through the consumable chip; the main control board adjusts the heating temperature and/or heating time of the fixer according to the humidity information. And, above-mentioned humidity transducer sets up on the inner chamber wall of cartridge.
Set up through the aforesaid humidity transducer on the carbon powder box inner chamber wall can accurately detect the humidity of carbon dust in the carbon powder box to send humidity information for the main control panel through the consumptive material chip, the heating temperature and the heat time of final main control panel adjustment fixer. The accurate control of the humidity of the carbon powder can be accurately realized through the mode, so that the fixing effect is ensured.
9. The invention provides printer consumable equipment, which further comprises: the voltage sensor is used for detecting the voltage of the charging roller in the toner cartridge and sending the voltage information of the charging roller to the main control board; and the main control board adjusts the charging voltage value of the charging roller according to the charging roller voltage information. And the voltage sensor is arranged on the charging roller in the toner cartridge.
The voltage sensor arranged on the charging roller can accurately detect the charging voltage value of the charging roller, so that the humidity information is sent to the main control board through the consumable chip, and finally the main control board controls the charging mechanism to adjust the voltage value of the charging roller. The accurate control of the voltage of the charging roller can be accurately realized through the mode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram showing a partially enlarged internal structure of a printer according to the present invention;
FIG. 2 is a schematic circuit diagram of the connection between the toner cartridge and the main control board according to the present invention;
FIG. 3 is a schematic diagram illustrating a USB consumable identification process of the printer according to the present invention;
fig. 4 is a schematic flow chart of the voltage detection and adjustment step and the humidity detection and adjustment step provided by the present invention.
Description of reference numerals:
1-toner cartridge; 2-selenium drum; 3-a main control panel; 4-a humidity sensor; 5-charging roller.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a method for identifying a USB consumable for a printer, as shown in fig. 3, which includes the following steps:
s1, the consumable chips on the toner cartridge 1 and the toner cartridge 2 are in communication connection with the main control board 3 through USB equipment;
s2, the consumable chip generates random data; moreover, the consumable chip encrypts the identity verification code of the consumable chip by an encryption algorithm to generate identity verification code encryption information;
s3, the consumable chip encodes the identity verification code encryption information into the random data;
s4, the main control board 3 receives the random data, extracts the authentication code encryption information and decrypts to identify the consumable chip identity information. The printer replaces the existing IIC interface through USB equipment, so that the communication connection between the toner cartridge 1 and the toner cartridge 2 or the communication connection between one of the toner cartridge and the main control board 3 is realized, and the data transmission quantity between the printer consumable and the printer is effectively increased. And the encryption information is randomly coded into random data through the mode, so that confusion is caused to crackers, the deciphering difficulty is increased, and the anti-theft encryption capacity of the printer consumable is effectively improved.
In this embodiment, the encoding rule of the consumable chip is recorded in an on-chip flash of the consumable chip; and the main control board 3 reads the coding rule of the flash in the chip through a consumable program. The coding rule is set as a private rule and is programmed into the on-chip flash of the consumable chip along with the consumable chip program, and the on-chip flash cannot be read by an external device and can only be accessed by the consumable chip program. By the method, a cracker can be prevented from reading the flash data to perform decompiling analysis, so that the anti-theft encryption capacity of the printer consumable is further improved.
In this embodiment, as shown in fig. 4, the USB consumable identification method for a printer further includes the following steps:
and (3) humidity detection and adjustment: detecting the humidity of the carbon powder in the carbon powder box 1 through a humidity sensor 4, and sending humidity information to the main control board 3; the main control board 3 adjusts the heating temperature and/or heating time of the fixer according to the humidity information; in this step, the consumable chip communicates with the humidity sensor 4, and the consumable chip sends humidity information to the main control board 3.
When the humidity of the carbon powder in the toner cartridge 1 is higher than a preset value, the heating temperature and/or the heating time of the fixer are/is increased; when the humidity of the carbon powder in the toner cartridge 1 is lower than a preset value, the heating temperature and/or the heating time of the fixer are/is reduced. According to the invention, the humidity of the carbon powder in the carbon powder box 1 can be effectively detected by arranging the humidity sensor 4, so that the main control panel 3 can adjust the heating temperature and the heating time of the fixer in real time according to the humidity information, and the drying of the carbon powder is ensured to ensure the fixing effect.
In this embodiment, as shown in fig. 4, the USB consumable identification method for a printer further includes the following steps:
voltage detection and adjustment: detecting the voltage of a charging roller 5 in the toner cartridge 1 through a voltage sensor, and sending the voltage information of the charging roller to the main control board 3; the main control board 3 adjusts the charging voltage value of the charging roller 5 according to the charging roller voltage information; in the step, the consumable chip is in communication connection with the voltage sensor, and sends the charging roller voltage information to the main control board 3;
when the voltage of the charging roller 5 is higher than a preset value, a charging mechanism for charging the charging roller 5 reduces the charging voltage value; when the voltage of the charging roller 5 is lower than a preset value, a charging mechanism for charging the charging roller 5 raises a charging voltage value. In the invention, the USB equipment replaces the existing IIC interface, so that the communication connection between the main control board 3 and one or both of the carbon powder box 1 and the selenium drum 2 is realized, the data transmission quantity is increased, the consumable chip can send the encrypted identity verification code and the voltage value information of the charging roller 5 to the main control board 3, and the main control board 3 can control the charging voltage of the charging mechanism in real time, thereby ensuring the stability of the voltage value of the charging roller 5.
Of course, the application of the present invention does not specifically limit whether the consumable chips are disposed on the toner cartridge 1 and the toner cartridge 2 in step S1, and in other embodiments, the toner cartridge 1 and the toner cartridge 2 are of an integrated structure, and the consumable chips are disposed on the toner cartridge 1 and the toner cartridge 2 of the integrated structure.
Of course, the recording position of the encoding rule of the consumable chip is not particularly limited in the present application, and in other embodiments, the encoding rule of the consumable chip may also be recorded in the main control board 3 or other storage media.
Example 2
A printer consumable device, as shown in fig. 1 and 2, comprising:
the consumable chip is arranged on the toner cartridge 1 and the toner cartridge 2;
the main control board 3 is in communication connection with the consumable chip through USB equipment so as to receive the authentication code encryption information which is sent by the consumable chip and coded in the random data, extract the authentication code encryption information from the random data, and decrypt the authentication code encryption information so as to identify the consumable chip identity information;
the humidity sensor 4 is used for detecting the humidity of the carbon powder in the carbon powder box 1 and sending humidity information to the main control board 3 through the consumable chip; the main control board 3 adjusts the heating temperature and heating time of the fuser according to the humidity information. The humidity sensor 4 is arranged on the inner cavity wall of the toner cartridge 1;
the voltage sensor is used for detecting the voltage of a charging roller 5 in the toner cartridge 1 and sending the voltage information of the charging roller to the main control board 3; and the main control board 3 adjusts the charging voltage value of the charging roller 5 according to the charging roller voltage information. The voltage sensor is arranged on a charging roller 5 in the toner cartridge 1.
Example 3
A printer, comprising: a printer consumable device.
A printer consumable device, as shown in fig. 1 and 2, comprising:
the consumable chip is arranged on the toner cartridge 1 and the toner cartridge 2;
the main control board 3 is in communication connection with the consumable chip through USB equipment so as to receive the authentication code encryption information which is sent by the consumable chip and coded in the random data, extract the authentication code encryption information from the random data, and decrypt the authentication code encryption information so as to identify the consumable chip identity information;
the humidity sensor 4 is used for detecting the humidity of the carbon powder in the carbon powder box 1 and sending humidity information to the main control board 3 through the consumable chip; the main control board 3 adjusts the heating temperature and heating time of the fuser according to the humidity information. The humidity sensor 4 is arranged on the inner cavity wall of the toner cartridge 1;
the voltage sensor is used for detecting the voltage of a charging roller 5 in the toner cartridge 1 and sending the voltage information of the charging roller to the main control board 3; and the main control board 3 adjusts the charging voltage value of the charging roller 5 according to the charging roller voltage information. The voltage sensor is arranged on a charging roller 5 in the toner cartridge 1.

Claims (12)

1. A USB consumable identification method for a printer is characterized by comprising the following steps:
s1, the consumable chips on the toner cartridge (1) and/or the toner cartridge (2) are in communication connection with the main control board (3) through USB equipment;
s2, the consumable chip generates random data; moreover, the consumable chip encrypts the identity verification code of the consumable chip by an encryption algorithm to generate identity verification code encryption information;
s3, the consumable chip encodes the identity verification code encryption information into the random data;
s4, the main control board (3) receives the random data, extracts the authentication code encryption information and decrypts to identify the identity information of the consumable chip.
2. The USB consumable identification method for a printer of claim 1, wherein the encoding rule of the consumable chip is recorded in an on-chip flash of the consumable chip; and the main control board (3) reads the coding rule of the flash in the chip through a consumable program.
3. The USB consumable identification method for a printer of claim 1, further comprising the steps of:
and (3) humidity detection and adjustment: detecting the humidity of carbon powder in the carbon powder box (1) through a humidity sensor (4), and sending humidity information to the main control board (3); the main control board (3) adjusts the heating temperature and/or heating time of the fixer according to the humidity information;
when the humidity of the carbon powder in the carbon powder box (1) is higher than a preset value, the heating temperature and/or the heating time of the fixer are/is increased; and/or the presence of a gas in the gas,
when the humidity of the carbon powder in the carbon powder box (1) is lower than a preset value, the heating temperature and/or the heating time of the fixer are/is reduced.
4. The USB consumable recognition method for a printer according to claim 3, wherein in the humidity detection adjustment step,
the consumable chip is in communication connection with the humidity sensor (4), and sends humidity information to the main control board (3).
5. The USB consumable identification method for a printer of claim 1, further comprising the steps of:
voltage detection and adjustment: detecting the voltage of a charging roller (5) in the toner cartridge (1) through a voltage sensor, and sending the voltage information of the charging roller to the main control board (3); the main control board (3) adjusts the charging voltage value of the charging roller (5) according to the charging roller voltage information;
when the voltage of the charging roller (5) is higher than a preset value, a charging mechanism for charging the charging roller (5) reduces the charging voltage value;
when the voltage of the charging roller (5) is lower than a preset value, a charging mechanism for charging the charging roller (5) increases the charging voltage value.
6. The USB consumable identification method for a printer according to claim 5, wherein in the voltage detection adjustment step,
the consumable chip is in communication connection with the voltage sensor, and sends charging roller voltage information to the main control panel (3).
7. A printer consumable device, comprising:
the consumable chip is arranged on the toner cartridge (1) and/or the toner cartridge (2);
and the main control board (3) is in communication connection with the consumable chip through USB equipment so as to receive the authentication code encryption information which is sent by the consumable chip and coded in the random data, extract the authentication code encryption information from the random data, and decrypt the authentication code encryption information so as to identify the identity information of the consumable chip.
8. The printer consumable device of claim 7, further comprising:
the humidity sensor (4) is used for detecting the humidity of carbon powder in the carbon powder box (1) and sending humidity information to the main control board (3) through the consumable chip;
the main control board (3) adjusts the heating temperature and/or heating time of the fixer according to the humidity information.
9. Printer consumable device according to claim 8, characterized in that said humidity sensor (4) is arranged on the inner cavity wall of said cartridge (1).
10. The printer consumable device of claim 7, further comprising:
the voltage sensor is used for detecting the voltage of a charging roller (5) in the toner cartridge (1) and sending the voltage information of the charging roller to the main control board (3);
and the main control board (3) adjusts the charging voltage value of the charging roller (5) according to the charging roller voltage information.
11. Printer consumable device according to claim 10, characterized in that said voltage sensor is arranged on a charging roller (5) inside said toner cartridge (1).
12. A printer, comprising:
the printer consumable device of any one of claims 7 to 11.
CN202110931544.XA 2021-08-13 2021-08-13 USB consumable identification method for printer, consumable equipment and printer Pending CN113671807A (en)

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