CN114422649A - Data transmission control device, method and system for image forming apparatus - Google Patents

Abstract

The present invention belongs to the technical field of imaging control, and provides a data transmission control device, method and system for an image forming device. The data transmission control device includes: a first data transmission unit communicatively connected to an external data transmission device, and connected to the image forming device. a second data transmission unit communicatively connected to the job receiving unit in the device, and a one-way transmission unit disposed between the first data transmission unit and the second data transmission unit; a device attribute confirmation unit for receiving a representation image fed back from the image forming device The device attribute information of the device is formed; the control unit receives the device attribute information determined by the device attribute determination unit, determines the speed of data transmission through the second data transmission unit according to the device attribute information, and controls the second data transmission unit to transmit at the corresponding speed data. Therefore, the performance of the image forming apparatus can be maximized while satisfying the safety requirements.

Description

Data transmission control device, method and system for image forming apparatus

technical field

The present invention relates to the technical field of imaging control, and in particular, to a data transmission control device, method and system for an image forming apparatus.

Background technique

With the development of imaging technology, more and more image forming devices are used in office and daily life. Common image forming devices include but are not limited to printers, copiers, scanners, fax machines or integrated printing, copying, scanning, and faxing functions. One or more of the multifunctional business machines.

In the prior art, a network function is usually provided, so that it is more convenient for more users to connect to the image forming apparatus through the network, so that more users can use the image forming apparatus. In some scenarios, such as scenarios with high confidentiality requirements, the image forming apparatus is usually not allowed to have the network communication function, because hackers may obtain the confidential information in the image forming apparatus through the network, which will bring about the security of the image forming apparatus. threaten.

To this end, Chinese patent application numbers CN202010948631.1, CN202010948649.1, CN202010949622.4 disclose an image forming device and an image forming system, combined with a one-way isolation device to ensure that confidential information will not be transmitted to the outside through the network, Thereby, the safety and reliability of the image forming apparatus are improved.

In the process of implementing the present invention, the inventor found that the traditional one-way isolation device is only for the purpose of single-item data transmission between the print driving device and the image forming device for consideration of safety, but does not consider that users may use different types, The image forming device with printing speed is prone to different types of image forming devices with different printing speeds. If the one-way isolation device sends data too slowly, the printing speed of the image forming device will be affected. If the one-way isolation device sends data too fast, the The memory of the image forming apparatus will be consumed too much, and even abnormal printing may occur.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a data transmission control device, method and system for an image forming apparatus, which can adaptively adjust the data delivery speed according to the attribute information of the image forming apparatus during the delivery process of the data transmission control apparatus, so that the When the safety requirements are met, the performance of the image forming apparatus can be maximized.

A first aspect of the present invention provides a data transmission control device for an image forming apparatus, characterized in that it includes:

A first data transmission unit communicatively connected to an external data transmission device, a second data transmission unit communicatively connected to a job reception unit in the image forming apparatus, and a unidirectional interposition between the first data transmission unit and the second data transmission unit transmission unit;

a device attribute confirmation unit for receiving device attribute information representing the image forming device fed back from the image forming device;

a control unit, receiving the device attribute information determined by the device attribute determining unit, and determining the speed of data transmission through the second data transmission unit according to the device attribute information, and controlling the second data transmission unit according to the corresponding speed transmit data.

In a preferred embodiment of the present invention, the device further includes a storage unit, the storage unit stores the device attribute information parameter and the speed parameter, and the device attribute information parameter and the speed parameter are stored in advance in association with each other.

In a preferred embodiment of the present invention, the device attribute information is at least one of the image forming device type, model, and manufacturer, and the data transmission speed is a speed value or a speed interval for outputting printing paper within a specific predetermined time.

In a preferred embodiment of the present invention, the number of the first data transmission units is multiple, and the number of the first data transmission units is the same as that of the second data transmission units; and each first data transmission unit corresponds to a second data transmission unit respectively The transmission units are connected through a one-way transmission unit.

In a further preferred embodiment of the present invention, the first data transmission unit is a first USB port, the second data transmission unit is a second USB port, and the one-way transmission unit is a photoelectric signal conversion circuit; The signal conversion circuit converts the data received by the first USB port into an optical signal, and transmits the optical signal to the optical receiving module through the optical transmitting module, and the optical receiving module converts the optical signal into an electrical signal, and then transmits the optical signal to the optical signal through the optical transmission module. Two USB port outputs.

In a preferred embodiment of the present invention, determining the speed of data transmission through the second data transmission unit according to the device attribute information is specifically: adjusting the clock inside the second data transmission unit to adjust the corresponding transmission data, and/ Or adjust the size of the data buffer space associated with the second data transmission unit.

A second aspect of the present invention also provides a data transmission control system for an image forming apparatus, characterized in that:

The data transmission control device for an image forming apparatus as provided in any one of the first aspect, and

An image forming apparatus and a data transmission apparatus connected to the data transmission control apparatus.

A third aspect of the present invention also provides a data transmission control method for an image forming apparatus, characterized in that it includes:

The first data transmission unit receives the job data to be imaged sent by the external data sending device;

receiving feedback from an image forming apparatus that characterizes the image forming apparatus and device attribute information that characterizes the image forming apparatus;

The speed of data transmission through the second data transmission unit is determined according to the device attribute information, and the second data transmission unit is controlled to transmit data at the corresponding speed.

In a preferred embodiment of the present invention, the device attribute information is at least one of the image forming device type, model, and manufacturer, and the data transmission speed is a speed value or a speed interval for outputting printing paper within a specific predetermined time.

In a preferred embodiment of the present invention, determining the speed of data transmission through the second data transmission unit according to the device attribute information is specifically: adjusting the clock inside the second data transmission unit to adjust the corresponding transmission data, and/ Or adjust the size of the data buffer space associated with the second data transmission unit.

Therefore, in the technical solution provided by the present invention, the speed of data transmission through the second data transmission unit is determined according to the device attribute information, and the second data transmission unit is controlled to transmit data according to the corresponding speed, so that the data delivery speed is adaptively adjusted, thereby The performance of the image forming apparatus can be maximized under the condition that the safety requirements are met.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic connection diagram of an image forming system according to an embodiment of the present invention.

FIG. 2 is a structural block diagram of a data transmission control system according to an embodiment of the present invention.

FIG. 3 is a structural block diagram of another data transmission control system provided by an embodiment of the present invention.

FIG. 4 is a schematic structural diagram of a data transmission control apparatus according to an embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a data transmission control system according to an embodiment of the present invention.

FIG. 6 is a structural block diagram of another data transmission control system provided by an embodiment of the present invention.

FIG. 7 is a flowchart of a data transmission control method for an image forming apparatus according to an embodiment of the present invention.

Detailed ways

In order to better understand the technical solutions of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

It should be understood that the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example

As shown in FIG. 1, the present embodiment provides a schematic structural diagram of an image forming system, and the image forming system includes:

Image forming apparatus 400, the image forming apparatus 400 includes not limited to a printer with only a printing function, a scanner with only a scanning function, a facsimile machine with only a fax function, and a printer with at least two functions of printing, scanning, and faxing. Multifunctional all-in-one machine, can also say computer peripheral equipment such as digital composite machine.

The image forming device 400 can be connected to the computer through the data transmission control device 300, or can be directly connected to the computer; and in combination with different application scenarios, the permission levels are distinguished. For example, in the case of high security level requirements, only data The transmission control device 300 is connected to the computer, and can also add encryption or security level authority restrictions to the print job. If the security level requires restrictive requirements, the image forming apparatus 400 can be directly connected to the computer, or the data transmission control apparatus 300 can be connected to the computer. For specific needs, the connection method can be customized according to the user's needs.

In this embodiment, one purpose of connecting the image forming apparatus 400 to the computer or connecting the image forming apparatus 400 to the computer through the data transmission control apparatus 300 is to receive print job data sent from the computer. The print job data is usually sent by the print driver. The print driver may be an application program installed on the computer by the user, or an application program that comes with the computer operating system; and, in view of the fact that the data transmission control device 300 provided in this embodiment is usually a scenario that requires specific security requirements, Therefore, there will also be added security check application programs that recognize each other between the image forming apparatus 400 , the data transmission control apparatus 300 and the computer. The security check application program in the computer may be integrated within the print driver, or may exist independently of the print driver. . These different implementations all belong to the protection scope of the technical solutions provided in this embodiment, and are not specifically limited here.

One purpose of the data transmission control device 300 is to control data and/or status to be transmitted only in one direction, thereby improving security. The specific internal structure thereof will be described in further detail below with reference to FIGS. 2-5 . In this embodiment, a preferred implementation is provided. As shown in FIG. 1 and FIG. 4 , the data transmission control apparatus 300 can be used as an independent device to communicate with computers and images through a data transmission line (for example, a USB transmission line) or a wireless network. The device 400 is connected; it can also be a module integrated inside a computer or an image forming device; these different implementations belong to the protection scope of the technical solutions provided in this embodiment, and are not specifically limited here.

As a preferred embodiment, the data transmission control device 300 is provided with a one-way transmission unit 330, the one-way transmission unit 330 can control the print job data to be transmitted only from the external data transmission device to the image forming device 400, However, the transfer of print job data saved or buffered by the image forming apparatus 400 to an external data transmission apparatus is not permitted. Of course, this embodiment is not limited to this. For example, in the case of faxing and scanning, the image forming apparatus 400 can also be controlled to transmit only fax job data and scan job data to the external apparatus, but the external apparatus is not allowed to transmit data to the image forming apparatus. . Specifically, the unidirectional transmission mode can be selectively prefabricated or a control switch can be added to adjust the data transmission direction according to actual needs, so as to better meet the actual needs of users.

The external data sending device 110 and the external data sending device 120 may be the first computer 100 and the second computer 200 respectively; in order to make it easier for those skilled in the art to understand this embodiment, hereinafter, the operation issued by the first computer 100 is encrypted The specific implementation of this embodiment will be described in detail by taking the print job data (high security level) and the job issued by the second computer 200 as unencrypted print job data (general security level) as examples. It should be noted that the computers 100 and 200 in FIG. 1 are only desktop computers as examples, but this embodiment is not limited thereto. For example, the computers 100 and 200 may also be notebooks, PADs, and the like. In addition, it should be noted that the external data sending device is not limited to a computer, for example, it can also be a server, which can send print job data to the data transmission control device 300, or receive scan and fax job data from the image forming device 400; It can be other computer storage media, for example, operation data storage devices such as U disk and optical disk.

As shown in FIG. 2 , this embodiment provides a data transmission control apparatus 300 , which is used to cooperate with the external data transmission apparatus 110 and the image forming apparatus 400 to complete one-way transmission of print job data. Wherein, the data transmission control device 300 includes:

A first data transmission unit 310 communicatively connected to an external data transmission device (eg, the first external data transmission device 110 ), a second data transmission unit 320 communicatively connected to a job reception unit in the image forming apparatus 400 , and a first data transmission unit 320 provided in the first A unidirectional transmission unit 330 between the data transmission unit 310 and the second data transmission unit 320 .

Wherein, the first data transmission unit 310 and the second data transmission unit 320 may be USB type transmission ports; but are not limited to USB type, for example, may also be network transmission ports.

The authentication unit 340 receives the security attribute information representing the image forming apparatus fed back from the image forming apparatus 400, and determines whether the image forming apparatus satisfies a preset rule according to the security attribute information. The security attribute information is an identifier that characterizes the uniqueness of the image forming apparatus set according to a predetermined rule. The security attribute information can be issued after being authenticated by a designated organization, and the image forming apparatus that meets the security requirements is set with the security attribute information; no The image forming device that meets the security requirements does not set the security attribute information; it is also possible that each image forming device stores a piece of attribute information, but the specific field of the attribute information and/or the combination algorithm between the fields meets the predetermined requirements , it is considered a preset rule; otherwise, it is not satisfied. The authentication unit 300 may be implemented by a hardware circuit, or may be implemented by computer software recorded in the memory of the controller. These different implementations all belong to the protection scope of the technical solutions in this embodiment.

The control unit 350 is configured to output abnormal status information when the image forming apparatus does not satisfy the preset rules, and prohibit the data transmission control apparatus 300 from outputting imaging job data to the image forming apparatus 400 connected thereto.

Wherein, the control unit 350 may be a single chip microcomputer or an operating system on chip (SoC), and may also be other forms of hardware circuits. When detecting that an image forming apparatus is connected to a certain port, the authentication unit 340 will send a query request to the image forming apparatus, and according to a predetermined communication protocol, the image forming apparatus that meets the requirements will send its own security attribute information to the data The transmission control device 300, when the authentication unit 340 does not receive the security attribute information or the received security attribute information does not meet the requirements, determines that the image forming device does not meet the preset rules; the control unit 350 outputs abnormal state information , and the data transfer control apparatus 300 is prohibited from outputting image forming job data to the image forming apparatus 400 connected thereto.

For example, the control unit 350 is further configured to send query information to the image forming apparatus 400 through the second data transmission unit 320 according to a predetermined communication rule (which may be a user-defined communication rule or a standard communication rule), and the image forming apparatus 400 Parse the query information, and when the query information satisfies the predetermined requirement after parsing, the security attribute information is fed back.

In a further preferred embodiment, the predetermined communication rules include: if after the data transmission control apparatus 300 is powered on, when the data transmission control apparatus 300 is electrically connected to the image forming apparatus 400 for the first time, and/or when the data transmission control apparatus 300 sends the image When the forming apparatus 400 sends the job data to be imaged; the query information is sent to the image forming apparatus 400 through the second data transmission unit 320 .

The warning unit 360 is connected in communication with the control unit 350, and sends warning information when receiving the abnormal state information transmitted by the control unit 350; It should be noted that the abnormal state information transmitted by the control unit 350 may only be a signal that needs to activate an alarm for the alarm unit 360, such as high level, low level or switch information, etc., or it may indicate a special meaning The warning unit 360 can identify the computer command with special meaning, so as to execute the warning function. In this embodiment, the warning information includes one or more combined warning messages among sound information, optical information, and text information.

In addition, the data transmission control device 300 can also perform security authentication on an external data transmission device (eg, a computer); for a specific authentication method, refer to the above-mentioned authentication process for the image forming device 400 . The image forming apparatus 400 may also perform security authentication on the data transmission control apparatus 300 in a similar manner; an external data transmission apparatus (eg, a computer) may also perform security authentication on the data transmission control apparatus 300 in a similar manner. That is, one-way authentication or two-way authentication can be used.

As shown in FIG. 4 , in a preferred implementation of this embodiment, the first data transmission unit 310 is the first USB communication units 312 and 314 , the second data transmission unit 320 is the second USB communication unit, and the one-way transmission unit 330 is Photoelectric signal conversion circuit; the photoelectric signal conversion circuit converts the data received by the first USB communication units 312 and 314 into optical signals, and transmits the optical signals to the optical receiving module through the optical transmitting module, and the optical receiving module converts the optical signals into electrical signals , and then output through the second USB communication unit; when the image forming apparatus 400 does not meet the preset rules, the control unit 350 prohibits the second USB communication unit from outputting imaging operations to the image forming apparatus 400 connected to it, and prohibits the photoelectric signal conversion circuit from sending the The second USB communication unit outputs an electrical signal and/or disables the conversion of the photoelectric signal by the photoelectric signal conversion circuit.

As shown in FIG. 5 , this embodiment also provides an implementation manner, the control unit 350 includes controllers respectively arranged in each interface module: for example, the first controller in the first interface 312 that communicates with the host 1, A second controller in the second interface 314 that communicates with the host 2, and a third controller in the third interface that communicates with the image forming apparatus. The specific form of the control unit 350 provided in this embodiment is not limited to this, for example, it may also be an independent controller, or a hardware module coupled with the photoelectric conversion unit 330 .

When two hosts issue a job, the connection status of the data transmission control device 300 is as follows:

Considering the communication protocol rules of USB devices, when the data transmission control apparatus 300 receives information from a host, the state of the data transmission control apparatus 300 is no longer a ready state (for example, a busy state, which can be used by another host. identification), the operating system of another host will not directly issue the job to be printed on the host to the data transmission control device 300 . Therefore, the two Host interfaces on the data transfer control device 300 are independent of each other, but are connected to the port of the image forming device at the lower end at the same time, and the job data is stored in the buffer of the data transfer control device 300 .

In a preferred implementation of this embodiment, the control unit 350 is further configured to: when the first data transmission unit 310 is communicatively connected to the external data transmission apparatus 110, virtualize the data transmission control apparatus 300 as an image forming apparatus type device, so that the external The data transmission apparatus 110 transmits the job to be imaged to the data transmission control apparatus 300 according to the communication mode corresponding to the image forming apparatus.

As shown in FIG. 4 , in a preferred implementation of this embodiment, the warning unit 360 is a light-emitting unit 360 disposed on the casing of the data transmission control device. When the control unit determines that the image forming device does not meet the preset rules, it controls the light-emitting unit 360 to emit light. The unit 360 emits light according to a predetermined pattern, eg, blue light for normal communication and red light for warning state.

As shown in FIG. 1 , FIG. 3 , and FIG. 4 , in the data transmission control device 300 provided in this embodiment, the first data transmission unit 310 includes a first interface 312 and a second interface 314 , and the first interface 312 is connected to a first external The data sending apparatus 110 may be a confidential print job scenario, and the second external data sending apparatus 210 connected to the second interface 314 may be a non-confidential print job scenario. And whether the first one-way control unit 332 and the second one-way control unit 334 are connected to the second data transmission unit 320 is controlled by the external mechanical switch 370. When the mechanical switch 370 is pressed to the left, the first interface 312 is connected to the second data transmission unit 320. The communication link between the second data transmission units 320 is opened, and the first external data transmission apparatus 110 may transmit the print job data to the image forming apparatus 400 . When the mechanical switch 370 is pressed to the right, the communication link between the second interface 314 and the second data transmission unit 320 is opened, and the second external data transmission apparatus 210 can transmit print job data to the image forming apparatus 400 .

In the process of implementing the present invention, the inventor also found that if the data transmission speed of the first data transmission unit 310 and the second data transmission unit 320 in the data transmission control device 300 are the same, the data transmission control device 300 can directly send the data. The data transmitted from the apparatus is directly transparently transmitted to the image forming apparatus 400 . However, in fact, it is necessary to consider the differences between different image forming apparatuses and the data communication process, and the data transmission speeds of the first data transmission unit 310 and the second data transmission unit 320 are not necessarily the same; A storage unit is provided in 300, and the storage unit can be arranged between the one-way transmission unit 330 and the second data transmission unit 320, and stores the data transmitted and/or processed through the first data transmission unit 310 and the one-way transmission unit 330; The stored data is transmitted according to the requirements between the second data transmission unit 320 and the image forming apparatus 400 .

It should be noted that the storage unit provided in this embodiment may also be disposed between the one-way transmission unit 330 and the second data transmission unit 320, for example, may also be disposed between the one-way transmission unit 330 and the first data transmission unit 310 It can also be set to be connected to the control unit 350, and the control unit 350 can directly control the data of the first data transmission unit 310 to be written into the storage unit, or directly control the data transmission of the storage unit to the second data transmission unit 320; The storage unit is directly disposed inside the control unit 350 or the one-way transmission unit 330 . In addition, when there are multiple data sending devices, multiple storage units can also be set to correspond to the data transmitted by the corresponding data sending devices; it can also be set as one storage unit, but divided into multiple different storage areas, corresponding to The data transmitted by the corresponding data transmission device. These different embodiments all belong to the protection scope of the invention.

The specific hardware form of the storage unit, including but not limited to: U disk, mobile hard disk, read-only memory (ROM for short), random access memory (RAM for short), magnetic disk or optical disk, etc. A medium on which program code can be stored.

In the process of implementing the present invention, the inventor also found that if the data transmission control device 300 completes the security authentication and connection with the image forming device 400, if there is a disconnection during the data transmission process, the data will be stored in the storage unit. Internally, data cannot be transmitted to the image forming apparatus; in this way, the data transmission control apparatus 300 itself will also pose a security risk. More importantly, if it is disconnected and then reconnected, if the data transmission control device 300 is used by a different user or a different image forming device; it will cause the internal storage unit to be transmitted to a different user or a different image. The device is formed, thereby causing the leakage of data within the storage unit. One solution may be that the data stored in the storage unit will be bound to the image forming apparatus 400 and/or the user, so that if the usage environment does not meet the requirements, it will not be transmitted; however, there will be another problem, the storage If there is always data in the unit that cannot be transmitted, there may be no space to receive new data; therefore, it may not work properly.

As mentioned above, the inventors also found in the process of implementing the present invention that there are differences between different image forming apparatuses and data communication processes, so this embodiment also provides a data transmission control apparatus and method for image forming apparatuses and system, which can adaptively adjust the data delivery speed according to the attribute information of the image forming device during the delivery operation of the data transmission control device, so that the performance of the image forming device can be brought into full play under the condition of meeting the security requirements. .

As shown in FIG. 6 , this embodiment provides a data transmission control device 300 for an image forming apparatus. The data transmission control device 300 includes:

The first data transmission unit 310 communicatively connected to the external data transmission device 110, the second data transmission unit 320 communicatively connected to the job receiving unit in the image forming apparatus 400, and the first data transmission unit 310 and the second data transmission unit provided in the first data transmission unit 310 One-way transmission unit 330 between 320;

The device attribute confirmation unit 380 receives the device attribute information representing the image forming device fed back from the image forming device; the device attribute confirmation unit 380 may be a separate module or a module inside the control unit; for example, the device attribute confirmation The unit 380 and the control unit 350 can be executed by different hardware modules respectively, and can also be realized by loading corresponding computer programs respectively by the same modules; they can also be realized partly by hardware modules and partly by hardware loading computer program software.

The control unit 350 receives the device attribute information determined by the device attribute determination unit, determines the speed of data transmission through the second data transmission unit 320 according to the device attribute information, and controls the second data transmission unit 320 to transmit data at the corresponding speed.

In addition, the storage unit in the data transmission control device 300 provided in this embodiment is also used for the storage unit to store the device attribute information parameter and the speed parameter, and the device attribute information parameter and the speed parameter are stored in association in advance.

In this preferred embodiment, the device attribute information is at least one of the image forming device type, model, and manufacturer, and the data transmission speed is the speed value or speed range of outputting the printing paper within a specific predetermined time.

In a preferred implementation of this embodiment, the number of the first data transmission units is multiple, and the number of the first data transmission units is the same as that of the second data transmission units; and each first data transmission unit corresponds to one of the second data transmission units respectively. are connected through a unidirectional transmission unit. Of course, the number of the second data transmission units can also be set to be different from that of the first data transmission units. For example, the number of the first data transmission units is two and the number of the second data transmission units is one.

In a further preferred implementation of this embodiment, the first data transmission unit is a first USB port, the second data transmission unit is a second USB port, and the one-way transmission unit is a photoelectric signal conversion circuit; the photoelectric signal conversion circuit converts the first USB The data received by the port is converted into an optical signal, and the optical signal is transmitted to the optical receiving module through the optical transmitting module, and the optical receiving module converts the optical signal into an electrical signal, and then outputs it through the second USB port.

In a preferred embodiment of the present invention, determining the speed of data transmission through the second data transmission unit according to the device attribute information is specifically: adjusting the clock inside the second data transmission unit to adjust the corresponding transmission data, and/or adjusting the The size of the data buffer space associated with the second data transmission unit. The overall speed of the second data transmission unit to the image forming apparatus can be adjusted by adjusting the clock inside the transmission unit; the size of the data buffer space associated with the second data transmission unit can also be adjusted. It is necessary to pause, and then continue the transmission after the data is sent, so as to adjust the size of the buffered data to be transmitted to the image forming apparatus based on the buffer space.

More specific adjustment schemes include but are not limited to:

Scheme 1: The data transmission control device 300 realizes that the configuration table corresponding to the optimal speed of each image forming device attribute information (eg model) is stored in it. After identifying the model of the specific image forming device, it is determined from the configuration table that the data transfer speed.

Scheme 2: The attribute information fed back by the image forming apparatus directly includes the optimal speed parameter. When the data transmission control device 300 receives the optimal speed parameter, it directly executes the corresponding data transmission process according to the optimal speed parameter. . This facilitates maintenance, and when the performance of the image forming apparatus changes or a new image forming apparatus is added, there is no need to update the configuration table.

Therefore, in the technical solution provided in this embodiment, the speed of data transmission through the second data transmission unit is determined according to the device attribute information, and the second data transmission unit is controlled to transmit data according to the corresponding speed, so that the data delivery speed is adaptively adjusted, Therefore, the performance of the image forming apparatus can be maximized under the condition that the safety requirements are met.

In addition, the various technical solutions provided in this embodiment can be selectively used in combination, and these different combinations belong to the protection scope of the technical solutions provided by the present invention.

As shown in FIG. 1 to FIG. 3 , this embodiment also provides a data transmission control system for an image forming apparatus, the data transmission control system includes:

Any one of the data transmission control devices 300 provided above, and

The image forming apparatus 400 and the data transmission apparatus (for example, the external data transmission apparatuses 110 and 210 ) are connected to the data transmission control apparatus 300 .

This embodiment also provides a data transmission control method for an image forming apparatus, the method comprising:

S110. The first data transmission unit receives the job data to be imaged sent by the external data sending device;

S120. Receive device attribute information representing the image forming device that is fed back from the image forming device and that characterizes the image forming device;

S130. Determine the speed of data transmission through the second data transmission unit according to the device attribute information, and control the second data transmission unit to transmit data according to the corresponding speed.

For the specific details of the data transmission control method for the image forming apparatus, reference may be made to the above description of the data transmission control apparatus for the image forming apparatus. The same technical features have the same meanings as the above-mentioned embodiments, and can achieve the same technical effects. The description will not be repeated here.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (10)

1. A data transmission control device for an image forming apparatus, comprising: A first data transmission unit communicatively connected to an external data transmission device, a second data transmission unit communicatively connected to a job reception unit in the image forming apparatus, and a unidirectional interposition between the first data transmission unit and the second data transmission unit transmission unit; a device attribute confirmation unit for receiving device attribute information representing the image forming device fed back from the image forming device; a control unit, receiving the device attribute information determined by the device attribute determining unit, and determining the speed of data transmission through the second data transmission unit according to the device attribute information, and controlling the second data transmission unit according to the corresponding speed transmit data. 2 . The device according to claim 1 , further comprising a storage unit, wherein the storage unit stores the device attribute information parameter and the speed parameter, and the device attribute information parameter and the speed parameter are stored in association in advance. 3 . 3 . The device according to claim 1 , wherein the device attribute information is at least one of a type, model, and manufacturer of the image forming device, and the speed of the data transmission is a speed value of outputting printing paper within a specific predetermined time. 4 . or speed range. 4. The device according to claim 1, wherein the number of the first data transmission units is multiple, and the number of the first data transmission units is the same as that of the second data transmission units; and each first data transmission unit is respectively Correspondingly, a second data transmission unit is connected through a unidirectional transmission unit. 5 . The device according to claim 4 , wherein the first data transmission unit is a first USB port, the second data transmission unit is a second USB port, and the one-way transmission unit is a photoelectric signal conversion unit. 6 . a circuit; the photoelectric signal conversion circuit converts the data received by the first USB port into an optical signal, and transmits the optical signal to the optical receiving module through the optical transmitting module, and the optical receiving module converts the optical signal into an electrical signal, and then output through the second USB port. 6 . The device according to claim 1 , wherein determining the speed of data transmission through the second data transmission unit according to the device attribute information is specifically: adjusting a clock inside the second data transmission unit to adjust the corresponding and/or adjust the size of the data buffer space associated with the second data transmission unit. 7. A data transmission control system for an image forming apparatus, characterized in that: The data transfer control device for an image forming apparatus according to any one of claims 1 to 6, and An image forming apparatus and a data transmission apparatus connected to the data transmission control apparatus. 8. A data transmission control method for an image forming apparatus, comprising: The first data transmission unit receives the job data to be imaged sent by the external data sending device; receiving device attribute information characterizing the image forming apparatus fed back from the image forming apparatus; The speed of data transmission through the second data transmission unit is determined according to the device attribute information, and the second data transmission unit is controlled to transmit data according to the corresponding speed. 9 . The method according to claim 8 , wherein the device attribute information is at least one of a type, model, and manufacturer of the image forming device, and the speed of the data transmission is a speed value of outputting printing paper within a specific predetermined time. 10 . or speed range. 10 . The method according to claim 8 , wherein determining the speed of data transmission through the second data transmission unit according to the device attribute information is specifically: adjusting a clock inside the second data transmission unit to adjust the corresponding 10 . and/or adjust the size of the data buffer space associated with the second data transmission unit.

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