TWI773760B - Multifunction printer control device - Google Patents

Abstract

The present invention relates to control technologies for a multifunction printer, and more particularly, to a multifunction printer control device disposed separately from a firmware of a multifunction printer to control the multifunction printer, a multifunction printer for security paper and a security system using the multifunction printer control device, and a control method thereof. A multifunction printer control device according to the present invention can be disposed separately from a firmware of a multifunction printer including a plurality of signal lines and communication lines, the multifunction printer control device including: a microcontroller for receiving one or more signal lines or communication lines running from the inside of the multifunction printer to the firmware of the multifunction printer in the middle, processing a signal or data thereof, and transmitting the processed signal or data to the firmware of the multifunction printer; a power supply part for supplying power to the microcontroller; and one or more of a port part, GPIO and switching part that can be connected to the one or more signal lines and communication lines.

Description

Multifunction Printer Control Unit

The present invention relates to a control technology for a multi-function printer, in particular, to a multi-function printer control device and a security paper which are set separately from the firmware of the multi-function printer to control the multi-function printer. The utility model relates to a multifunctional printer, a security system using the multifunctional printer control device, and a control method thereof. In the present invention, machines capable of printing paper, such as a multifunction printer, a printer, a facsimile machine, a photocopier, etc., are collectively referred to as multifunction printers, and the term "multifunction printer" includes Devices that perform only a single function, such as a printer, a facsimile, a photocopier, and a scanner; and a multifunction printer that combines the functions of a printer, a fax, a photocopier, and a scanner.

In recent years, with the rapid growth of enterprises, there has been research on security plans for corporate file leakage. In this specification, a multifunction printer is the most common device capable of outputting information processed by an external device in a form visible to the human eye. Recently, as high-priced multifunction printers have become more complex and upgraded, there is a tendency to share multifunction printers on a team or unit basis to increase efficiency. When a multi-function printer shared by multiple users is used to output column content, it is difficult to maintain security relative to the printed content. FIG. 1 is a block diagram illustrating a security system used in a conventional firmware-integrated multifunction printer. Referring now to FIG. 1, security paper including a label or detector has been developed recently, and a multifunction printer (1) includes a security paper sensor (2) and a Firmware (3) with security features. When the user transmits a print command to the multifunction printer (1) through the personal computer (PC) (4), the security paper printed with the document content is output from the multifunction printer (1), but from the multifunction printer (1) The functional printer (1) outputs plain paper like blank paper. In addition, a message such as "Security paper does not conform" is displayed on the LCD of the multifunction printer (1), and an inquiry such as "Continue the printing operation?" with "Yes/No" is displayed. In this manual, if the user clicks "Yes", the printing operation will continue, and if the user clicks "No", the data retained in the multifunction printer will be deleted and the printing operation will be canceled completely. In addition, a detection gate is set at the entrance, a detection label can be used to sense the document when the document passes through, and a warning signal is generated to prevent the document from being taken out. These techniques are currently used to prevent unauthorized removal of various books and documents from libraries or companies. The advantage of the aforementioned firmware combined with the multifunction printer is that the multifunction printer itself can control security paper and plain paper that are not printed, and can control the use of security paper or delete print data through the message displayed on the LCD . However, only multifunction printers with a firmware combination have been developed and sold as multifunction printers for performing security functions in the aforementioned security systems. That is, in order to perform the security function, the multifunction printer or printer without security function firmware should be replaced by a new multifunction printer or printer with security function firmware, which will Add considerable cost.

In addition, for example, please refer to FIG. 2, it is possible to communicate that one of the multifunction printer main bodies (7) is a bookbinding machine (5) and a splicer (6) is connected to the multifunction printer main body (7) so as to sort columns printed documents. The binding and sorting machine (5) is used for sorting and printing documents according to the needs of users, and the lap (6) is inserted between the main body of the multi-function printer (7) and the binding and sorting machine (5), so as to The printed document is delivered to the finisher (5), the lap (6) being a well known device which can even change the orientation of the document to be delivered to the finisher (5) as required. However, in order to transmit a large amount of direct mail (DM), such as invoices, advertisements, etc., in a short time, it is usually necessary to A device that automatically processes mail in the form of post-mail delivery. Since the finisher (5) connected to the main body (7) of the multifunction printer cannot implement this function in the conventional firmware-combined multifunction printer, it is sometimes necessary to remove the finisher (5) and attach a Separate processing device, such as a sealing device. In this case, it may be necessary to use a processing device manufactured by a manufacturer other than the manufacturer of the firmware-combined multifunction printer to connect to the firmware-combined multifunction printer. However, in the aforementioned firmware-combined multifunction printer, the multifunction printer main body (7) and the bookbinding machine (5) continuously communicate with each other to check the status of the multifunction printer (7). Therefore, if the bookbinding machine (5) is separated, there is no communication between the multifunction printer main body (7) and the bookbinding machine (5), so that the multifunction printer main body (7) determines that there is no bookbinding The sorter (5) also stops delivering documents to the splicer (6), making the separate processing machine unusable. In Figure 2, a large-capacity unit device (8) is used to store a large amount of paper of a specific size, and to supply the paper to the multifunction printer for printing. That is, as mentioned above, when the firmware of the multifunction printer does not have the security function, since there is no control device capable of controlling the multifunction printer, a multifunction printer using the firmware with the security function will be disadvantageously required. machine to replace the multifunction printer. In the present invention, the firmware includes a printing hardware and a software controlling the hardware.

One object of the present invention is to provide a multi-function printer control device which can be set separately from the firmware of the multi-function printer to control the multi-function printer.

Another object of the present invention is to provide a multifunction printer for security paper and a security system, which use a multifunction printer control device provided separately from the firmware of the multifunction printer to control multiple functions. A functional printer, and a control method thereof.

According to an aspect of the present invention for achieving the aforementioned object, there is provided a multifunction printer control device which can be provided separately from the firmware of the multifunction printer including a plurality of signal lines and communication lines The multi-function printer control device includes: a microcontroller for receiving one or more signal lines or communication lines from the inside of the multi-function printer to the firmware of the multi-function printer in the middle, firmware that processes its signals or data and transmits the processed signals or data to the multifunction printer; a power supply unit for powering the microcontroller; and connectable to said one or One or more of port components, GPIO and switch components for a plurality of signal lines and communication lines.

According to another aspect of the present invention for achieving the aforementioned object, there is provided a multifunction printer for security paper, which includes: a security paper sensor disposed on a printing paper feeding path; and a multifunction printer The printer control device is used for, during the process of conveying the corresponding printing paper on the feeding path, to detect a first printing paper detected by the security paper sensor when the printing paper to be determined does not appear in the vicinity of the security paper sensor A sensed value, compared with one or more second sensed values sensed by the security paper sensor for the corresponding printing paper on the feeding path; wherein, when the printing paper is determined to be plain paper, The multifunction printer control device controls the potential applied from a high voltage power supply (HVPS) to a T2 roller to be opposite to the potential between a transfer belt for printing and the T2 roller of a reverse potential, thus outputting blank paper.

According to another aspect of the present invention for achieving the aforementioned object, there is provided a multifunction printer for security paper, which includes: a security paper sensor disposed on a printing paper feeding path; a multifunction printer The meter control device is used for receiving a signal from the security paper sensor and determining whether the printing paper is security paper; and a first sensor, which is arranged on the security paper sensor on the printing paper feeding path downstream, wherein when the printing paper is determined to be plain paper, the multifunction printer control device controls an output signal from the first sensor to forcibly cause paper jamming, and controls the output signal from another second sensor The output signal enables a printer engine controller to forcibly release the jammed paper and discharge the plain paper without printing.

According to a still further aspect of the present invention for achieving the aforementioned object, there is provided a security system applied to a multifunction printer capable of connecting to a server through a network, comprising: a security paper sensor connected to multiple The functional printer is separately arranged to sense the security paper; and a multifunction printer control device is separately arranged to control the multifunction printer, the multifunction printer control device receives the detection by the security paper The signal sensed by the device determines whether the printing paper is security paper, and based on the determination result, a printing-related signal for controlling the printing operation of the multifunction printer is transmitted to the multifunction printer and the one or more of the servers.

According to a still further aspect of the present invention for achieving the aforementioned objects, there is provided a control method of a multifunction printer capable of connecting to a server via a network, the multifunction printer receiving a print related information from the server via the network signal and perform a printing operation, the method includes: receiving a signal from one of the security paper sensors provided separately from the multifunction printer, and in the multifunction printer provided separately from the multifunction printer The printer control device determines whether the printing paper is security paper; based on the determination result of the multifunction printer control device, when the printing paper is security paper, print a document; and based on the multifunction printer control As a result of the determination, the device transmits a print-related signal for controlling the printing operation of the multi-function printer to one or more of the multi-function printer and the server when the printing paper is not the security paper.

According to the present invention, a multi-function printer control device can be provided which is provided separately from the firmware of the multi-function printer to control the multi-function printer.

In addition, according to the present invention, a multifunction printer for security paper and a security system can be provided, wherein the multifunction printer is controlled using a firmware provided separately from the multifunction printer, and the same A multifunctional printer control device for a control method.

1: Multifunction Printer

2: Security paper sensor

3: Firmware

4: PC

5: Binding and sorting machine

6: Lap

7: The main body of the multifunction printer

8: Large-capacity unit device

10: Top cover

11: Front cover

12: Tray

13: Printing paper export

14: Multipurpose tray clutch

15: Feed Roller

15-1: Paper Feed Motor

16: First clutch

17: Registration clutch

17-1: Alignment roller

18: Feed sensor

19: Feed Roller

19-1: Separation roller

20: Security paper sensor

21:Feed sensor

22: write sensor

23: Back cover sensor

24: The first sensor

25: Second sensor

26: The first optical sensor

27: Second optical sensor

28: Printed Circuit Board

29: Grounded Metal Model

30: KCMY LED head/LSU

31: KCMY head switch control

32: KCMY head actuated switch

33: Switch

40: Printer Engine Controller

50: High Voltage Power Supply (HVPS)

60: User terminal

70: Server

80: PC

90: BLDC motor

100: Multifunction Printer

200: Printing paper

201:OPC drum

202: Charging Roller

203: Power Supply Unit

204: Imaging wheel

205: Sponge Roller

206: Transfer Belt

207:T2 Roller

208: Thermostat

209: The first thermal safety resistor

210: Heated Roller

212: Support block

213: Fusing belt

214: Second thermal safety resistor

300: Multifunction Printer Control Unit

301: Sensing IC

302: Microcontroller

303: Port Parts

304: General purpose input and output

305: Switch parts

306: Power Supply Parts

307: Display Parts

308: Ethernet communication module/Wifi communication module

309: Virtual Binding Pager Communication Block

311: I ² C communication port

331:I ² C communication port

332: RS232 port

333: Serial peripheral interface port

334:USB port

391:CLOCK terminal

392: slave terminal in master terminal out terminal

393: SELECT terminal

394: slave terminal out master terminal into terminal

395:READY terminal

396: Switch

397: Switch

400: Multifunction Printer Firmware

FIG. 1 is a block diagram illustrating a security system in a conventional firmware-integrated multifunction printer with security functions.

FIG. 2 is an explanatory diagram illustrating a use state of a bookbinding and sorting machine installed on a conventional firmware-combined multifunction printer.

3 is a diagram illustrating a printing paper feeding path in a multifunction printer, in which a multifunction printer control device that can be provided separately from the firmware of the multifunction printer according to an embodiment of the present invention is applied .

4 is a diagram illustrating a printing paper feeding operation in a multifunction printer, in which a multifunction printer control device which can be provided separately from the firmware of the multifunction printer according to an embodiment of the present invention is applied.

FIG. 5 is an explanatory diagram illustrating a printing process through a KCMY LED head or a Laser Scanner Unit (LSU) in a multifunction printer, in which a multi-function printer according to an embodiment of the present invention is applied. A multi-function printer control device that is set separately from the firmware of the functional printer.

FIG. 6 is a block diagram illustrating a multifunction printer control device which can be provided separately from the firmware of the multifunction printer according to an embodiment of the present invention.

7 is a block diagram illustrating a multi-function printer control device which can be provided separately from the firmware of the multi-function printer according to a further embodiment of the present invention.

FIG. 8 is a block diagram illustrating a multifunction printer control device which can be provided separately from the firmware of the multifunction printer according to a further embodiment of the present invention.

9 is a block diagram illustrating a communication block of a virtual bookbinding and sorting machine in a multifunction printer control device which can be provided separately from the firmware of the multifunction printer according to an embodiment of the present invention.

10 is a block diagram illustrating a communication block of a virtual bookbinding and sorting machine in a multifunction printer control device which can be provided separately from the firmware of the multifunction printer according to another embodiment of the present invention.

11 is an explanatory diagram illustrating a communication protocol in the virtual bookbinding and finisher communication block of the multifunction printer control device which can be provided separately from the firmware of the multifunction printer according to the present invention.

FIG. 12 is a diagram illustrating a multifunction printer control device which can be provided separately from the firmware of the multifunction printer, and a multifunction printer for security paper using the firmware according to an embodiment of the present invention. block diagram.

13 is a diagram illustrating a multi-function printer control device which can be provided separately from the firmware of the multi-function printer, and a multi-function printer for security paper using the firmware according to another embodiment of the present invention block diagram.

14 is a diagram illustrating a multifunction printer control device which can be provided separately from the firmware of the multifunction printer, and a multifunction printer for security paper using the firmware according to a further embodiment of the present invention block diagram.

15 is a flow chart illustrating sequential steps of a control method of a multifunction printer for security paper according to a still further embodiment of the present invention.

16 is a sequence diagram of a control method of a multifunction printer for security paper according to still further embodiments of the present invention when the printing paper is security paper.

17 is a timing chart of a control method of a multifunction printer for security paper according to still a further embodiment of the present invention when the printing paper is plain paper.

18 is a block diagram illustrating a security system according to one embodiment of the present invention.

19 is a flow chart illustrating sequential steps of a control method of a multifunction printer according to an embodiment of the present invention.

FIG. 20 is a block diagram illustrating a security system according to another embodiment of the present invention.

21 is a flow chart illustrating sequential steps of a control method of a multifunction printer according to another embodiment of the present invention.

Figure 22 is a block diagram illustrating a security system according to a further embodiment of the present invention.

23 is a flow chart illustrating sequential steps of a control method of a multifunction printer according to a further embodiment of the present invention.

24 is a block diagram illustrating a configuration of security paper sensing in a multifunction printer for security paper or a security system according to an embodiment of the present invention.

25 is a block diagram illustrating a configuration of security paper sensing in a multifunction printer for security paper or a security system according to an embodiment of the present invention.

26 is an explanatory diagram illustrating a position of a security paper sensor in a multifunction printer or a security system for security paper and an operation of sensing security paper and plain paper according to an embodiment of the present invention.

27 is an explanatory diagram illustrating a position of a security paper sensor in a multifunction printer or a security system for security paper and an operation of sensing security paper and plain paper according to an embodiment of the present invention.

28 is a diagram illustrating the time when the security paper sensor in the multifunction printer or security system for security paper senses a first sensing value and the time when the security paper sensor senses a first sensing value according to an embodiment of the present invention An explanatory diagram of the period of the second sensing value.

29 is a plan view illustrating a security paper sensor provided on a printed circuit board (PCB) in a multifunction printer or security system for security paper according to an embodiment of the present invention.

30 is an explanatory diagram illustrating a distance between a first optical sensor and a security paper sensor in a multifunction printer or security system for security paper according to an embodiment of the present invention.

Hereinafter, based on the preferred embodiment of the present invention, a multi-function printer control device which can be provided separately from the firmware of the multi-function printer will be described. In this specification, the term "separately located" means that the multifunction printer control device is located as a separate device at the existing normal operating multifunction printer, and the multifunction printer control device is not necessarily physically located in the the exterior of the multifunction printer. Most multifunction printers to which the present invention can be applied do not have a security paper sensing function, but can have this function. Also, in the following description, the term "firmware" includes both hardware and software required for the operation of the multifunction printer. In other words, a multifunction printer to which the present invention is applicable can operate normally using the firmware without the control device of the present invention, but additional functions can be implemented by the control device of the present invention.

First, a multifunction printer control device that can be provided separately from the firmware according to the present invention will be described in detail with reference to the accompanying drawings. The following description merely illustrates a preferred embodiment of the present invention.

3 is a diagram illustrating a printing paper feeding path in a multifunction printer, in which a multifunction printer control device that can be provided separately from the firmware of the multifunction printer according to an embodiment of the present invention is applied.

4 is a diagram illustrating a printing paper feeding operation in a multifunction printer, in which a multifunction printer control device that can be provided separately from the firmware of the multifunction printer according to an embodiment of the present invention is applied.

Generally, the multifunction printer refers to a printer capable of implementing all the functions of a printer, a facsimile machine, a photocopier, and a scanner. However, as discussed later, since the present invention is characterized by determining whether the printing paper to be fed is plain paper or security paper, and performing the printing operation based on the determination result, it can be understood that the multifunction printer also includes Printer, fax, or photocopier. That is, as long as the printer or photocopier can implement the invention described below with the printing paper to be fed function, which is within the scope of the present invention. Or, of course, a general multifunction printer implementing all functions is also within the scope of the present invention.

Please refer to Figures 3 and 4, in the case of Manual Tray (MT) or Multi-purpose Tray (MPT), when opening a multipurpose printer for safety paper (100) A paper feed motor (15-1) starts when the front cover (11) of the machine is fed and printing paper is fed from the manual paper tray (MT), or when printing paper is fed from the multi-purpose paper tray (MPT), which is not illustrated. Turning, an MPT clutch (14) is activated, and the paper feed roller (15) of the manual paper tray is rotated, so that the printing paper is fed from the manual paper tray. When a paper feed sensor (21) is activated by the printing paper conveyed from the manual paper tray, the printing paper is further advanced to the distance that it touches the range of a pair of registration rollers (17-1) to correct the printing paper skew . Then, the registration clutch (17) is activated to make the registration roller (17-1) transport the printing paper. When a writing sensor (22) is activated by the printing paper to be conveyed, an LED head operates to perform exposure on the OPC, and the toner adheres to the exposed part of the OPC, and when the OPC rotates, it is conveyed to the OPC to be Paper sent. Finally, the printing paper is discharged through a printing paper outlet (13) on one side of a top cover (10).

When printing paper is fed from a paper cassette (12), the paper feed motor (15-1) starts to rotate, a first clutch (16) is activated, and a paper feed roller (19) of the paper cassette (12) rotates , so that the printing paper is lifted from the tray body of the paper cassette (12) by the paper feeding roller (19) and a separating roller (19-1). In this specification, when a paper feeding sensor (18) is activated by the printing paper lifted by the paper feeding roller (19), it can confirm that the normal printing and feeding operation is completed, and the first clutch (16) is closed to stop a printing paper The pickup operation is performed, and the printing paper is fed to the paper feed sensor (21). When the paper feed sensor (21) is activated by transferring the printing paper from the tray of the paper cassette (12), the printing paper is further advanced to the distance that it touches the registration roller (17-1) to straighten the printing paper askew. Then, the registration clutch (17) is activated to make the registration roller (17-1) transport the printing paper. When the write sensor (22) is activated by the printing paper to be conveyed, the LED head operates Whereas, exposure is performed on the OPC, and the toner adheres to the exposed portion of the OPC, and when the OPC is rotated, it is conveyed to the printing paper to be conveyed. Finally, the printing paper is discharged through the printing paper outlet (13) on one side of the top cover (10). In this specification, the output form of the paper feed sensor (21) is high and low voltage, and the paper feed sensor (21) is used to determine whether the printing paper from the manual paper tray or the tray of the paper cassette (12) is A corresponding position has been reached, and when the printing paper is further advanced to the distance of the registration roller (17-1) for registration, it becomes a reference point for a specific distance. The output form of the write sensor (22) is also high and low voltage, and the write sensor (22) is used to determine whether the printing paper has reached a corresponding position, and becomes the LED head to execute on the OPC photosensitive drum Expose a reference point to start a print operation.

According to an embodiment of the present invention, a security paper sensor (20) is located on the printing paper feeding path. Furthermore, according to an embodiment of the present invention, the security paper sensor (20) is located between the paper feed sensor (21) and the writing sensor (22) on the printing paper feeding path.

In the present invention, the term "safety paper" means paper (printing paper) in which special materials are inserted or printed using special materials, which use an amorphous or non-crystalline material, a magnetic material (alloy), a The nanoscale metal wire, and a magnetic resonance material resonate at a specific frequency to generate a signal for distinguishing material characteristics.

The security paper is sensed by an Electromagnetic (EM) sensor. That is, when the soft magnetic substance in the security paper approaches the AC magnetic field generated by the sensor, the AC magnetic field changes, and the change generates a high frequency spectrum, and the security paper is sensed by the high frequency spectrum. The sensor may include a transmitter coil for generating an AC magnetic field, a receiver coil for sensing changes in the AC magnetic field generated by the transmitter coil, and a receiver coil for controlling the AC magnetic field generated by the transmitter coil and processing the data from the transmitter coil. The electronic system that receives the signal transmitted by the coil.

Alternatively, the security paper may comprise a plurality of thin conductive metal strips irregularly distributed throughout the paper. Any type of metal can be used as long as the metal is conductive and induces a current in the magnetic field. For example, the metal strips contained in the paper may have small dimensions that are not easily recognizable by the naked eye of the user, eg, 0.1 to 3 μm in thickness, 0.3 to 4 cm in length, and 0.1 to 0.5 mm in width. If the security paper has conductive thin metal strips distributed thereon, the primary magnetic field generated by the inductive sensor induces eddy currents in the thin metal strips of the paper to be fed, and the secondary magnetic field generated by this eddy current ) affects the native magnetic field produced by the inductive sensor to change the strength of the magnetic field. Thus, the inductive sensor transmits a security paper sensing signal to a sensing unit and a microcontroller (302) discussed later, depending on whether the strength of the magnetic field generated by the inductive sensor has changed.

FIG. 5 is an explanatory diagram illustrating a printing process through a KCMY LED head or a laser scanner unit (LSU) in a multifunction printer in which a multifunction printer according to an embodiment of the present invention is applied A multi-function printer control device with separate firmware.

FIG. 5A is an explanatory diagram illustrating charging and exposure processing. Referring now to FIG. 5A, a voltage is applied to a charging roller (202) to charge the surface of an OPC photosensitive drum (201). In this manual, toner does not stick to live surfaces. Then, when the electrified part reaches the position of the KCMY LED head (30) (or LSU (30)) when the OPC photosensitive drum (201) rotates, the light corresponding to the image to be printed by the KCMY LED head (30) will be scanned in On the charged surface of the OPC photosensitive drum (201), an electrostatic latent image having the same shape as the image is thus formed. FIG. 5B is an explanatory diagram illustrating a development process. Please refer to FIG. 5B, the toner in the toner container is placed on a sponge roller (205), and transferred to a developing roller (204) charged by a voltage, placed on the developing roller (204) The toner on the top sticks only to the electrostatic latent image formed on the surface of the OPC photosensitive drum (201) by the exposure of the KCMY LED head (30), and the remaining toner is recovered by the toner container. FIG. 5C is an explanatory diagram illustrating transfer processing. Referring now to Figure 5C, set The toner placed on the OPC photosensitive drum (201) is transferred to the printing paper (200) on the transfer belt (206) using a T2 roller (207) by a potential difference to form an image on the printing paper (200) . FIG. 5D is an explanatory diagram illustrating a thermal fusion process. Referring now to FIG. 5D, the toner on the printing paper (200) is thermally fused on the printing paper (200) by a heating roller (210) heated at a high temperature, thus resulting in the completion of the printing operation.

FIG. 6 is a block diagram illustrating a multifunction printer control device which can be provided separately from the firmware of the multifunction printer according to an embodiment of the present invention.

Please refer to FIG. 6, the multi-function printer control device (300) according to the present invention is a multi-function printer that can be set separately from the firmware (400) of the multi-function printer including a plurality of signal lines and communication lines printer control device (300), and the multifunction printer control device (300) includes: a microcontroller (302) for receiving the firmware from the inner part of the multifunction printer to the middle multifunction printer one or more signal lines or communication lines of the body (400), processing its signals or data, and transmitting the processed signals or data to the firmware (400) of the multifunction printer; a power supply unit (400) 306) for powering the microcontroller (302); and one or more of a port part (303), a GPIO (304) and a switch part (305), which can be connected to one or more signal lines and communication lines. A security paper sensor (20) is arranged at a specific position in the multifunction printer, and the multifunction printer control device (300) may further include one or more sensors for receiving the security paper from the security paper sensor. (20) Signal sensing integrated circuit (IC) (301). The sensor IC (301) is a security paper sensor IC (301), which processes the signal from the security paper sensor (20) to determine whether the printing paper is security paper. The microcontroller (302) is connected to the write sensor (22) and the paper feed sensor (21), and the signals from the write sensor (22) and the paper feed sensor (21) are in the Received at the GPIO (304) of the microcontroller (302), and the microcontroller (302) controls the output signal from the GPIO (304) depending on whether the security paper is sensed or not. When the printing paper to be fed passes through the paper feed sensor (21) and the writing sensor (22), the signal of the printing paper to be fed is transmitted to a printer The table engine controller (40) is activated to connect to the KCMY LED head (30) or the LSU (30), thus performing the printing operation. The microcontroller (302) transmits a signal to the firmware (400) provided in the multifunction printer according to whether the printing paper is security paper or not, and controls the switch part (305) to turn on/off the LED connected to the KCMY head ( 30 ) or LSU ( 30 ), so the printing operation is performed normally or not at all. That is, when the printing paper is detected as security paper, the KCMY LED head (30) or the LSU (30) is connected from the printer engine controller (40), so the printing operation is normally performed, and when the printing paper is detected When it is measured as plain paper, the KCMY LED head (30) or LSU (30) is not connected, so no printing operation is performed.

In another embodiment of the present invention, the microcontroller (302) determines that the printing paper to be fed is security paper or plain paper according to the sensing value of the security paper sensor (20), and enables/disables the Write the signal from the sensor (22) to the printer engine controller (40) so that the printing operation is performed normally or not at all. That is, when the printing paper is sensed as security paper, the microcontroller (302) usually transmits a signal from the writing sensor (22) to the printer engine controller (40), so the printing operation is normally performed , and when the printing paper is sensed as plain paper, the microcontroller (302) does not transmit a signal from the write sensor (22) to the printer engine controller (40) to output blank paper or enable printing The engine controller (40) stops a BLDC motor (not shown) of the multi-function printer (100) to cause paper jams, so no printing operation is performed.

The multifunction printer control device (300) may be provided with power required for its operation from a power supply unit (306), provided on the microcontroller (302) and connectable to one or more of the signal and communication lines The port component (303) may include an I ² C communication port (331), an RS232 port (332), a Serial Peripheral Interface (SPI) port (333), and a USB port ( 334), and the sensing IC (301) can communicate through its I2C communication port (311) and I2C communication port (331 ⁾ provided in the microcontroller (302 ⁾ The microcontroller (302).

FIG. 7 is a block diagram illustrating a multifunction printer control device which can be provided separately from the firmware of the multifunction printer according to another embodiment of the present invention.

Please refer to FIG. 7, the multifunction printer control device (300) according to the present invention further includes a display part (307), and the display part (307) can be connected through the RS232 port (302) of the microcontroller (302). 332) to communicate with the microcontroller (302). In addition, the multi-function printer control device (300) according to the present invention further comprises an Ethernet communication module (308), and the Ethernet communication module (308) can pass the microcontroller (302) ) of the RS232 port (332) to communicate with the microcontroller (302). In some embodiments, the multi-function printer control device (300) according to the present invention further includes a Wifi communication module (308), and the Wifi communication module (308) can pass through the microcontroller (302) RS232 port (332) to communicate with the microcontroller (302). Therefore, the microcontroller (302) can display on a display unit (307) such as an LCD whether the printing paper is a security paper, a page to be printed, etc. through the appropriate connection port of the connection port unit (303), And send and receive various printing information, such as whether the printing paper is security paper, whether it is a page to be printed, etc., to/from a server or terminal set outside the multifunction printer.

FIG. 8 is a block diagram illustrating a multifunction printer control device which can be provided separately from the firmware of the multifunction printer according to a further embodiment of the present invention. 9 is a block diagram illustrating a communication block of a virtual bookbinding and sorting machine in a multifunction printer control device which can be provided separately from the firmware of the multifunction printer according to an embodiment of the present invention. 10 is a block diagram illustrating a communication block of a virtual bookbinding and sorting machine in a multifunction printer control device which can be provided separately from the firmware of the multifunction printer according to another embodiment of the present invention. 11 is an explanatory diagram illustrating a communication protocol in the virtual bookbinding and finisher communication block of the multifunction printer control device which can be provided separately from the firmware of the multifunction printer according to the present invention.

8 and 9, the multifunction printer control device (300) according to the present invention includes a virtual bookbinding pager capable of communicating with the main body of the multifunction printer (100) in the microcontroller (302). machine communication block (309). According to an embodiment of the present invention, the virtual bookbinding and sorting machine communication block (309) can be a serial peripheral interface (SPI) port, and the virtual bookbinding and sorting machine communication block (309) includes: a CLOCK terminal ( 391), for receiving a signal for synchronously communicating data from the main body of the multi-function printer (100) of the master (Master), the CLOCK terminal is used for communicating with the main body of the multi-function printer (100) It is used as the interface of the Slave; a Slave In Master Out (SIMO) terminal (392) is used to receive a master output from the main body of the multifunction printer (100); one is used for A SELECT terminal (393) for receiving a signal is used to select a device for communication from the main body of the multifunction printer (100); a slave terminal (Slave Out Master In, SOMI) terminal (394), for transmitting a slave output from the firmware combination multifunction printer (300) to the main body of the multifunction printer (100); and a READY terminal (395) for transmitting a message for notifying the virtual The finisher communication block (309) is ready to signal the slave of the main body of the multifunction printer (100).

Referring now to FIG. 10, the split switches (396, 397) are provided to connect to the SOMI terminal (394) and the READY terminal (395), respectively, so that they can be used in accordance with the SPI communication strategy of the main body of the multifunction printer (100) as the master It is used when the final timing is completed with a high signal in each data transfer. Therefore, when controlling the virtual bookbinding finisher communication block (309) to communicate with the main body of the multifunction printer (100), the microcontroller (302) can switch the switches (396, 397) so that in each data transfer The last timing of is a high signal to communicate according to the SPI communication strategy of the main body of the multifunction printer (100) as the master. The switches (396, 397) connected to the SOMI terminal (394) and the READY terminal (395) may not be provided according to the SPI communication strategy of the main body of the multifunction printer (100) as the master.

Please refer to FIG. 11, in order to communicate with the main body of the multifunction printer (100) through the virtual bookbinding and sorting machine communication block (309) according to the multifunction printer control device (300) according to the present invention, first, when installing as shown in the figure The bookbinding and sorting machine (5) shown in 2 analyzes the communication protocol and creates a protocol table. Based on this protocol table, when a command is transmitted to the SIMO terminal (392) from the main body of the multifunction printer (100) as the master, the data corresponding to the command is sent from the SOMI terminal ( 394) to the main body of the multifunction printer (100), so that the virtual bookbinding and finisher communication block (309) as a slave can maintain communication to allow the multifunction printer (100) main body to identify the bookbinding machine (5) Normal operation. Therefore, when the bookbinding and sorter (5) is removed from the firmware-integrated multifunction printer, and a separate processing device such as a sealing device is attached as required, the multifunction printer can be provided separately from the multifunction firmware. The printer control device (300) can be used to virtually communicate with the main body of the multifunction printer (100), as described above, and thus the separate processing device can be connected and used for the firmware combined multifunction printer.

12 is a diagram illustrating a multifunction printer control device which can be provided separately from the firmware of the multifunction printer, and a multifunction printer for security paper using the firmware according to an embodiment of the present invention block diagram. Please refer to FIG. 12, the multi-function printer control device (300) uses the firmware of the multi-function printer for security paper, and the multi-function printer for security paper operates separately from the multi-function printer for security paper. Also, in some embodiments, it can be mounted on a multifunction printer for security paper. A multifunctional printer for security paper according to an embodiment of the present invention includes a security paper sensor (20) disposed on the printing paper feeding path, a security paper sensor (20) for sensing a multifunction printer control device (300) for measuring values to determine whether the printing paper is security paper, a printer engine control device for transmitting a T2 voltage control signal to the multifunction printer control device (300) device (40), and a for A high voltage power supply (HVPS) (50) that applies voltage to a T2 roller (207) under the control of the multifunction printer control device (300).

The security paper sensor (20) is arranged on the printing paper feeding path, and the multifunction printer control device (300) determines when the security paper or normal paper is to be determined in the process of conveying the corresponding printing paper on the feeding path. A first sensed value sensed by the security paper sensor (20) when the printing paper of the paper does not appear in the vicinity of the security paper sensor (20), and a first sensing value detected by the security paper sensor (20) on the feeding path for the corresponding printing paper One or more second sensing values sensed by the security paper sensor (20) are compared; when the comparison value is higher than a previously defined reference value for determining security paper, the printing paper is determined as security paper ; and when the comparison value is lower than the reference value, confirm that the printing paper is plain paper. In addition, when the printing paper is determined to be plain paper, the multifunction printer control device (300) can use a separate alarm member (sound, indicator light, etc.) to notify this.

When the security paper sensor (20) determines that the printing paper is plain paper, the multifunction printer control device (300) transmits from the printer engine controller (40) to the high voltage power supply (HVPS) by processing ) (50) to control the voltage applied from the high voltage power supply (HVPS) (50) to the T2 roller (207) to have a phase opposite to the transfer belt (206) and the T2 roller ( 207) is the inverse potential of the potential between. Therefore, when the printing paper is determined to be plain paper, in order that the corresponding image is not transferred from the transfer belt (206) to the printing paper, an intermediate transfer belt (206) that causes the toner to move from the transfer belt (206) to the printing paper is applied. The reverse potential difference of the potential between the T2 roller (207) and the T2 roller (207) can significantly reduce the amount of toner moved to the printing paper, so as to output a blank paper with no residual image on the printing paper. The process of outputting blank paper without afterimages under the control of the multifunction printer control device (300) will now be described in more detail. In the multifunction printer control device (300), based on the determination of the sensing IC (301), the microcontroller (302) does not transmit signals to the firmware of the multifunction printer, but through the GPIO (304) to transmit a control signal Thereby the high voltage power supply (HVPS) (50) is controlled. When the sensing IC (301) determines that the printing paper is plain paper according to the signal from the security paper sensor (20), the microcontroller (302) receives the information from the printer engine controller (40) through the GPIO (304). Receives a T2 voltage control signal, and transmits a control signal through GPIO (304) to control the voltage applied from the high voltage power supply (HVPS) (50) to the T2 roller (207) to have a phase opposite to the transfer belt (206) The inverse potential of the potential between the T2 wheel (207). Therefore, when the printing paper is determined to be plain paper, in order to prevent the corresponding image from being transferred from the transfer belt (206) to the printing paper, an intermediate transfer belt ( 206) and the reverse potential difference of the potential difference between the T2 roller (207), so as to significantly reduce the amount of toner moved to the printing paper, so as to output a blank paper with no residual image on the printing paper.

13 is a diagram illustrating a multi-function printer control device which can be provided separately from the firmware of the multi-function printer, and a multi-function printer for security paper using the firmware according to another embodiment of the present invention block diagram. Referring to FIG. 13, a multifunctional printer for security paper according to another embodiment of the present invention includes a security paper sensor (20) disposed on the printing paper feeding path, a security paper sensor (20) for detecting the security paper according to the security paper A multifunction printer control device (300) for determining whether the printing paper is a security paper based on the sensed value of the detector (20), a multifunction printer control device (300) for controlling from high to high under the control of the multifunction printer control device (300) A voltage power supply (HVPS) (50) applies a voltage to the printer engine controller (40), and under the control of the printer engine controller (40) applies a voltage to the T2 wheel (207) high voltage power supply device (HVPS) (50).

The security paper sensor (20) is arranged on the printing paper feeding path, and the multifunction printer control device (300) determines when the printing paper is to be determined as security paper or plain paper in the process of conveying the corresponding printing paper on the feeding path A first sensed value sensed by the security paper sensor (20) when the printing paper does not appear near the security paper sensor (20), and a said comparing one or more second sensing values sensed by the security paper sensor (20); when the comparison value is higher than a reference value defined previously to determine the security paper, the printing paper is determined to be security paper; and when When the comparison value is lower than the reference value, it is determined that the printing paper is plain paper. In addition, when the printing paper is determined to be plain paper, the multifunction printer control device (300) may use a separate alarm member (sound, indicator light, etc.) to notify about this.

When the security paper sensor (20) determines that the printing paper is plain paper, the multifunction printer control device (300) controls the printer engine controller (40) by transmitting a signal notifying that the printing paper is plain paper to the printer engine controller (40) to control the voltage applied from the high voltage power supply (HVPS) (50) to the T2 roller (207) to have an opposite voltage between the transfer belt (206) and the T2 roller (207) The inverse potential between the potentials. Therefore, when the printing paper is determined to be plain paper, in order that the corresponding image will not be transferred from the transfer belt (206) to the printing paper, an intermediate transfer belt (206) is applied to move the toner from the transfer belt (206) to the printing paper. ) and the potential difference between the T2 roller (207), a reverse potential difference, so as to significantly reduce the amount of toner moved to the printing paper, so as to output a blank paper with no residual image on the printing paper. The multi-function printer control device (300) is provided in a combined manner in which the firmware of the multi-function printer for security paper performs control operations.

14 is a diagram illustrating a multifunction printer control device which can be provided separately from the firmware of the multifunction printer, and a multifunction printer for security paper using the firmware according to a further embodiment of the present invention block diagram. 15 is a flow chart illustrating sequential steps of a control method of a multifunction printer for security paper according to a still further embodiment of the present invention. 16 is a timing chart of a control method of a multifunction printer for security paper according to still a further embodiment of the present invention when the printing paper is security paper. 17 is a timing chart of a control method of a multifunction printer for security paper according to still a further embodiment of the present invention when the printing paper is plain paper.

Please refer to FIG. 14 again, the multifunction printer for security paper according to an embodiment of the present invention includes a security paper sensor (20) disposed on the printing paper feeding path, a security paper sensor (20) for receiving the security paper from the security paper The signal of the sensor (20) and the multifunction printer control device (300) for determining whether the printing paper is security paper, and a first downstream security paper sensor (20) disposed on the printing paper feeding path A sensor (24), wherein when it is determined that the printing paper is plain paper, the multifunction printer control device (300) controls an output signal from the first sensor (24) to forcibly cause paper jamming and An output signal from another second sensor (25) is controlled, so that the printer engine controller (40) can forcibly release the jammed paper so as to eject plain paper that is not printed. In some embodiments, the multifunction printer control device (300) controls the output signal from the second sensor (25) after a paper jam occurs, so that the printer engine controller (40) can recognize that it is turned on The back cover is then closed, and the multifunction printer control device (300) controls the output signal from the first sensor (24), so that the printer engine controller (40) can forcibly release the jammed paper. In some embodiments, the first sensor (24) may be a write sensor (22), and the second sensor (25) may be a back cover sensor (23). The security paper sensor (20) is arranged on the feeding path of the printing paper, and the multifunction printer control device (300) in the process of conveying the corresponding printing paper on the feeding path, will determine when the paper is to be security paper or plain paper. A first sensed value sensed by the security paper sensor (20) when the printing paper does not appear near the security paper sensor (20), and a first sensing value detected by the security paper sensor (20) on the feeding path by the sensor for the corresponding printing paper. comparing one or more second sensing values sensed by the security paper sensor (20); when the comparison value is higher than a previously defined reference value for determining security paper, the printing paper is determined to be security paper; and When the comparison value is lower than the reference value, it is determined that the printing paper is plain paper. When the security paper sensor (20) senses the printing paper as plain paper, the multifunction printer control device (300) forcibly switches the output signal from a paper feed sensor (18) to a low signal. Also, when the printing paper is determined to be For plain paper, the multifunction printer control device (300) may use separate alarm means (sound, indicator light, etc.) to notify about this.

15 to 17 , the control method of the multifunctional printer for security paper according to the present invention includes: sensing whether the printing paper is security paper; when the printing paper is detected as security paper, performing a normal printing operation , and when the printing paper is sensed as plain paper, the output signal from the first sensor (24) is controlled by the multifunction printer control device (300) to cause paper jam; The printer control device (300) controls the output signal from the second sensor (25), so that the printer engine controller (40) can recognize that the rear cover is opened and then closed; through the multifunction printer control device ( 300) Control the output signal from the first sensor (24) so that the printer engine controller (40) can release the jammed paper and discharge the plain paper. In some embodiments, the first sensor (24) may be a write sensor (22), and the second sensor (25) may be a back cover sensor (23).

In the step of sensing whether the printing paper is security paper, the security paper sensor (20) senses whether the printing paper is security paper or plain paper, and performs normal printing operation when the printing paper is sensed as security paper, and in the step of controlling the output signal from the first sensor (24) by the multifunction printer control device (300) to cause the paper jam, when the printing paper is sensed as plain paper, the multifunction printer control device (300) The output from the first sensor (24) (eg, the write sensor (22)) is forced high and input to the printer engine controller (40) so that the print The meter engine controller (40) can cause paper jams. After the paper jam occurs, the multifunction printer control device (300) controls the output signal from the second sensor (25), so that the printer engine controller (40) can recognize that the back cover has been opened and then closed in the step , when the printer engine controller (40) causes a paper jam for, eg, 0.5 seconds, eg, 2 seconds, the multifunction printer controller (300) will The output of the sensor (23)) is switched to a high signal and it is output to the printer engine controller (40). Therefore, the printer The engine controller (40) recognizes that the rear cover is open and then closes. In the step where the multifunction printer control device (300) controls the output signal from the first sensor (24) so that the printer engine controller (40) can release the jammed paper and discharge the plain paper, the multifunction printer The printer control device (300) sends the output signal from the first sensor (24) that has been input to the printer engine controller (40) (eg, from The output signal of the write sensor (22) is returned to the original signal and input to the printer engine controller (40) so that the printer engine controller (40) can release the jammed paper and eject plain paper. Therefore, the paper jam is automatically released to discharge the plain paper, and the printing operation is performed to determine whether the printing paper is security paper, so that the pages to be printed are not missed. 17, when the security paper sensor (20) senses that the printing paper is plain paper, the multifunction printer control device (300) forcibly switches the output signal from the paper feed sensor (18) to signal low and input to the printer engine controller (40). In this specification, when the printing paper is A3 paper, even if the output from the writing sensor (22) becomes a low signal, which is a start-up operation, the output from the paper feeding sensor (18) will be due to the printing paper A high signal is maintained continuously for a long time so that the jammed paper is not automatically released. Therefore, the reason is to force a low signal to automatically release the jam. In addition, in some embodiments, the control method may further include: when the security paper sensor (20) senses the printing paper as plain paper, the multifunction printer control device (300) controls the to-be-generated printing paper (300). alarm.

18 is a block diagram illustrating a security system according to one embodiment of the present invention. 19 is a flow chart illustrating sequential steps of a control method of a multifunction printer according to an embodiment of the present invention.

18 and 19, when the user wants to send a print request to a server (70) through the PC (80) or perform photocopying through the multifunction printer (100) (A), the server ( 70) Request user authentication through the multi-function printer (100), and the user contacts the ID card of a user terminal (60) with the multi-function printer (100). For photocopying operations, the server (70) does not pass through the multifunction The printer (100) requests user authentication, but the user can touch the ID card of the user terminal (60) to the multifunction printer (100) for user authentication, and then perform the photocopying operation (B). The server (70) receives information about the ID card of the user terminal (60) from the multifunction printer (100), and checks whether the user is authorized to output and photocopy (C). If the user is not authorized to output and photocopy, the server (70) stops the printing operation of the multifunction printer (100) (E), and the multifunction printer (100) reports to the server (70) (F) The report print operation is interrupted and is ready and waiting for the next print operation (N). If the user is authorized to output and photocopy, the server (70) controls the multifunction printer (100) to start the printing operation (D). When the printing operation starts, the multifunction printer control device (300) receives a signal from the security paper sensor (20) for each page, and determines whether the printing paper is security paper (G). When it is determined that the printing paper is security paper, the multifunction printer control device (300) reports "the printing paper is security paper" to the server (70), and the server (70) controls the multifunction printer (100) to execute Print operation (H). If the printing operation (D) has not been completed, the multifunction printer (100) determines whether the printing operation has been completed after printing each page, and prints the next page (D). If the printing operation has been completed, the multifunction printer (100) is ready and waiting for the next printing operation (N). When it is determined that the printing paper is not security paper, the multifunction printer control device (300) reports "the printing paper is not security paper" to the server (70), notifies the manager (J) of it, and the server (70) commands The multifunction printer (100) outputs the corresponding page as blank paper and stops the printing operation (K). The multifunction printer (100) outputs blank paper, and then stops the printing operation (L). The multifunction printer (100) asks the server (70) or the user (connected to the server (70) via the PC (80)) whether to continue the printing operation, and the server (70) or the user (via the PC (80) ) connects to the server (70)) to determine whether to continue the printing operation (M). If the server (70) or the user stops the printing operation, the multifunction printer (100) is ready and waiting for the next printing operation (N). if When the server (70) or the user continues the printing operation, the multifunction printer (100) executes the printing operation from the page output as blank paper (D).

FIG. 20 is a block diagram illustrating a security system according to another embodiment of the present invention. 21 is a flow chart illustrating sequential steps of a control method of a multifunction printer according to another embodiment of the present invention.

20 and 21, when the user wants to send a print request to a server (70) through a PC (80) or perform photocopying through a multifunction printer (100) (A), the server ( 70) Request user authentication through the multi-function printer (100), and the user contacts the multi-function printer (100) with an ID card of a user terminal (60). For the photocopying operation, the server (70) does not request user authentication through the multifunction printer (100), but the user can contact the ID card of the user terminal (60) with the multifunction printer (100). 100) for user authentication, and then perform photocopying operation (B). The server (70) receives information about the ID card of the user terminal (60) from the multifunction printer (100) and checks whether the user is authorized to output and photocopy (C). If the user is not authorized to output and copy, the server (70) stops the printing operation of the multifunction printer (100) (E), and the multifunction printer (100) reports to the server (70)( F) Reports "Interrupted Print Operation" and is ready and waiting for the next print operation (N). If the user is authorized to output and photocopy, the server (70) controls the multifunction printer (100) to start the printing operation (D). When the printing operation starts, the multifunction printer control device (300) receives a signal from the security paper sensor (20) for each page, and determines whether the printing paper is security paper (G). When it is determined that the printing paper is security paper, the multifunction printer control device (300) reports "the printing paper is security paper" to the server (70), and the server (70) controls the multifunction printer (100) Execute the print operation (H). The multifunction printer (100) determines whether the printing operation has been completed after printing each page, and if the printing operation has not been completed, prints the next page (D). If the print operation is complete, Then the multifunction printer (100) is ready and waiting for the next printing operation (N). When it is determined that the printing paper is not the security paper, the multifunction printer control device (300) instructs the multifunction printer (100) to output blank paper (I), and the multifunction printer control device (300) reports to the server ( 70) Report "printing paper is not security paper", notify the manager (J) of it, and the server (70) instructs the multifunction printer (100) to stop the printing operation (K). The multifunction printer (100) outputs blank paper, and then stops the printing operation (L). The multifunction printer (100) asks the server (70) or the user (connected to the server (70) via the PC (80)) whether to continue the printing operation, and the server (70) or the user (via the PC (80) ) to connect the server (70)) to determine whether to continue the printing operation (M). If the server (70) or the user stops the printing operation, the multifunction printer (100) is ready and waiting for the next printing operation (N). If the server (70) or the user continues the printing operation, the multifunction printer (100) performs the printing operation from the output of the page as blank paper (D).

22 is a block diagram illustrating a security system according to a further embodiment of the present invention. 23 is a flow chart illustrating sequential steps of a control method of a multifunction printer according to a further embodiment of the present invention.

22 and 23, when the user wants to send a print request to the server (70) through the PC (80) or perform photocopying through the multifunction printer (100) (A), the server (70) User authentication is requested through the multi-function printer (100), and the user contacts the ID card of the user terminal (60) with the multi-function printer (100). For the photocopying operation, the server (70) does not request user authentication through the multi-function printer (100), but the user can touch the ID card of the user terminal (60) to the multi-function printer ( 100) for user authentication, and then perform photocopying operation (B). The server (70) receives information about the ID card of the user terminal (60) from the multifunction printer (100) and checks whether the user is authorized to output and photocopy (C). If an unauthorized user outputs and photocopy, the server (70) stops The printing operation of the functional printer (100) (E), and the multifunctional printer (100) reports "interrupted printing operation" to the server (70) (F), and is ready and waiting for the next printing operation (N). If the user is authorized to output and photocopy, the server (70) controls the multifunction printer (100) to start the printing operation (D). When the printing operation starts, the multifunction printer control device (300) receives a signal from the security paper sensor (20) for each page, and determines whether the printing paper is security paper (G). When it is determined that the printing paper is security paper, the multifunction printer control device (300) reports "the printing paper is security paper" to the server (70), and the server (70) controls the multifunction printer (100) to execute Print operation (H). The multifunction printer (100) determines whether the printing operation has been completed after printing each page, and if the printing operation has not been completed, prints the next page (D). If the printing operation has been completed, the multifunction printer (100) is ready and waiting for the next printing operation (N). When it is determined that the printing paper is not the security paper, the multifunction printer control device (300) instructs the multifunction printer (100) to output blank paper (I), and the multifunction printer (100) reports to the server (70) "Printing paper is not security paper" is reported, the manager (J) is notified, and the server (70) commands the multifunction printer (100) to stop the printing operation (K). The multifunction printer (100) outputs blank paper, and then stops the printing operation (L). The multifunction printer (100) asks the server (70) or the user (connected to the server (70) via the PC (80)) whether to continue the printing operation, and the server (70) or the user (via the PC (80) ) to connect the server (70)) to determine whether to continue the printing operation (M). If the server (70) or the user stops the printing operation, the multifunction printer (100) is ready and waiting for the next printing operation (N). If the server (70) or the user continues the printing operation, the multifunction printer (100) performs the printing operation from the output of the page as blank paper (D).

24 is a block diagram illustrating a configuration of security paper sensing in a multifunction printer for security paper or a security system according to an embodiment of the present invention. 25 is a diagram illustrating a configuration of security paper sensing in a multifunction printer for security paper or a security system according to an embodiment of the present invention block diagram. 26 is an explanatory diagram illustrating a position of a security paper sensor in a multifunction printer or a security system for security paper and an operation of sensing security paper and plain paper according to an embodiment of the present invention. 27 is an explanatory diagram illustrating a position of a security paper sensor in a multifunction printer or a security system for security paper and an operation of sensing security paper and plain paper according to an embodiment of the present invention.

As shown in the block diagram of Fig. 24 of the present invention, a security paper sensor (20) is connected to a multifunction printer control device (300), and the multifunction printer control device (300) is connected to a A paper feeding sensor (21), a writing sensor (22) and a paper feeding sensor (18). Furthermore, in some embodiments, the multifunction printer control device (300) is connected to a first optical sensor (26) and a second optical sensor (27). How to determine the security paper in the security system of the multifunction printer according to the present invention by these connections will be described later.

The security paper sensor (20) is arranged on the feeding path of the printing paper, and the multifunction printer control device (300) in the process of conveying the corresponding printing paper on the feeding path, will determine when the paper is to be security paper or plain paper. A first sensed value sensed by the security paper sensor (20) when the printing paper does not appear near the security paper sensor (20), and a first sensing value detected by the security paper sensor (20) on the feeding path by the sensor for the corresponding printing paper. comparing one or more second sensing values sensed by the security paper sensor (20); when the comparison value is higher than a previously defined reference value for determining security paper, the printing paper is determined to be security paper; and When the comparison value is lower than the reference value, it is determined that the printing paper is plain paper.

In addition, the multifunction printer control device (300) turns on/off the connection to the KCMY LED head (30) or the LSU (30) according to the sensed value of the security paper sensor (20). As discussed later, the printing paper to be fed passes through the paper feed sensor (21) and the writing sensor (22), the signal of the printing paper to be fed is transmitted to the printer engine controller (40), Activates the connection to the KCMY LED head (30) or LSU (30), thus performing the printing operation.

According to an embodiment of the present invention, the printing paper to be fed is determined to be security paper or plain paper according to the sensing value of the security paper sensor (20), and is connected to the KCMY LED head (30) or LSU ( 30). Therefore, the printing operation is usually performed or not performed at all. That is, when the printing paper is sensed as security paper, it is connected to the KCMY LED head (30) or LSU (30), so the printing operation is usually performed, and when the printing paper is sensed as plain paper, it is not connected to KCMY The LED head ( 30 ) or the LSU ( 30 ) therefore does not perform a printing operation.

Please refer to FIG. 25 , in one embodiment of the present invention, the multifunction printer control device (300) determines whether the printing paper to be fed is security paper or normal paper according to the sensing value of the security paper sensor (20). paper, and enable/disable the signal from the write sensor (22) to the printer engine controller (40), so that the printing operation is performed normally or not at all. That is, when the printing paper is sensed as security paper, the multifunction printer control device (300) activates a switch (33) to normally transmit a signal from the writing sensor (22) to the printer engine control The device (40) is installed, so the printing operation is performed normally, and when the paper is sensed as plain paper during printing, the multifunction printer control device (300) turns off the switch (33) without sending a signal from the write sensor (22) to the printer engine controller (40) to output blank paper or to allow the printer engine controller (40) to stop a BLDC motor (90) causing paper jams and thus no printing operation.

Please refer to FIG. 26 , which shows a registration roller (17-1) for correcting the skew of the printing paper and a paper feed sensor (21) arranged in front of the registration roller (17-1) in the feeding path of the printing paper. . The safety paper sensor (20) can be arranged between the registration roller (17-1) and the paper feed sensor (21). The first sensing value may be the value sensed by the security paper sensor (20) when the paper feed sensor (21) senses the printing paper, and the second sensing value may be the value sensed by the paper feed sensor (21) (21) A value sensed by the security paper sensor (20) for a certain period of time after the printing paper is sensed. Furthermore, in the multifunction printer for security paper, the writing sensor (22) can be arranged behind the registration roller (17-1) on the printing paper feeding path, and the second sensing value can be generated by the security paper sensor (22) before the writing sensor (22) senses the printing paper 20) Sensed value.

The multifunction printer control device (300) compares the first sensed value with one or more second sensed values sensed by the security paper sensor (20), when the comparison value is higher than the predetermined value When the defined reference value is defined, the printing paper is determined to be security paper, and when the comparison value is lower than the predefined reference value, the printing paper is determined to be plain paper. When the printing paper is determined to be the security paper, the multifunction printer control device (300) activates a KCMY head activation switch (32) through the KCMY head switch control (31) to connect the KCMY head activation and the KCMY LED head (30) or LSU (30), so the print operation is performed. At the same time, when the printing paper is determined to be plain paper, the multifunction printer control device (300) turns off the KCMY head actuation switch (32) through the KCMY head switch control (31), so as to disconnect the KCMY head actuation and the KCMY LED Head (30) or LSU (30), so no printing operation is performed. Since pages determined to be plain paper are not printed, it may be troublesome to reprint corresponding pages that have not yet been printed, but the user can be warned that the printing operation should be performed on security paper. At the same time, when the printing paper is determined to be plain paper, a separate alarm component (sound, indicator light, etc.) can be used to notify this, and it is also possible to record which user tries to use plain paper through a server connected to the network print.

The signal from the write sensor (22) to be turned on/off can also be controlled according to security paper or plain paper without enabling/disabling the connected KCMY LED head (30) or LSU (30). When the printing paper passes through, that is, when the printing paper enters, the paper feed sensor (21) is activated, and then the writing sensor (22) is activated, and the security paper sensor (20) will sense the The first and second sensed values of are transmitted to the multifunction printer control device (300). The printer control device (300) compares the first sensed value with one or more second sensed values sensed by the security paper sensor (20), when the comparison value is higher than the predefined When the reference value is , the printing paper is determined to be security paper, and when the comparison value is lower than the predefined reference value, the printing paper is determined to be plain paper.

When the printing paper is determined to be the security paper, the multifunction printer control device (300) activates the signal from the subsequent writing sensor (22), and thus performs processes including charging, exposing, developing, transferring, fusing, A series of printing processes of cleaning and static elimination, but when the printing paper is determined to be plain paper, the multifunction printer control device (300) turns off the switch (33) to turn off the transmission from the writing sensor (22) to the printing process. A signal from the printer engine controller (40) may cause paper jams to output blank paper or allow the printer engine controller (40) to stop the BLDC motor (90), so that no printing operation is performed.

According to an embodiment of the present invention shown in FIG. 27, the first optical sensor (26) is arranged at any point of the printing paper feeding path, and the security paper sensor (20) is arranged on the first optical sensor (20). 26) Back. The first sensed value is the value sensed by the security paper sensor (20) when the first optical sensor (26) senses that no printing paper is sensed on the printing paper feeding path, and the second The sensed value is a value sensed by the security paper sensor (20) for a certain period of time after the first optical sensor (26) senses the printing paper. The distance between the first optical sensor (26) and the security paper sensor (20) is preferably smaller than the distance between the printing paper on the feeding path and the subsequent printing paper. The reason for this is because the first sensing value should be sensed when there is no printing paper near the security paper sensor (20). However, if the distance is greater than the distance between the rear end of the previous printing paper and the front end of the subsequent printing paper, when there is printing paper near the security paper sensor (20), the first sensing value can be sensed, which will result in an inaccurate determination of the safety paper.

In some embodiments, the first optical sensor (26) may be a paper feed sensor (18), and the security paper sensor (20) is positioned behind the paper feed sensor (18) . In addition, in some embodiments, the second optical sensor (27) may be disposed behind the security paper sensor (20) on the printing paper feeding path, and the second sensing value may be in the second optical sensor Before the sensor (27) senses the printing paper, the The value sensed by the full paper sensor (20). Therefore, the security paper sensor (20) will sense the magnetic field changes caused when the front of the printing paper passes. The multifunction printer control device (300) compares the first sensed value with one or more second sensed values sensed by the security paper sensor (20), when the comparison value is higher than the predetermined value When the defined reference value is defined, the printing paper is determined to be security paper, and when the comparison value is lower than the predefined reference value, the printing paper is determined to be plain paper. When the printing paper is determined to be the security paper, the multifunction printer control device (300) activates the KCMY head actuating switch (32) through the KCMY head switch control (31) to connect the KCMY head actuator and the KCMY LED head ( 30) or LSU(30), so print processing is performed. At the same time, when the printing paper is determined to be plain paper, the multifunction printer control device (300) turns off the KCMY head actuating switch (32) through the KCMY head switch control (31) to disconnect the KCMY head actuator and the KCMY head The LED head ( 30 ) or the LSU ( 30 ) therefore does not perform a printing operation. Since the pages determined to be plain paper are not printed, reprinting the corresponding pages that have not been printed may be troublesome, but the user can be warned that the printing operation should be performed on security paper. At the same time, when the printing paper is determined to be plain paper, a separate alarm component (sound, indicator light, etc.) can be used to notify about this, and it can also be recorded through the server connected to the network which user tries to use ordinary paper. paper printing.

The signal from the write sensor (22) to be turned on/off can also be controlled according to security paper or plain paper without having to turn on/off the connection KCMY LED head (30) or LSU (30). After the printing paper enters and the first optical sensor (26) is activated, the security paper sensor (20) transmits the sensed first and second sensed values to the multifunction printer control device (300) . The multifunction printer control device (300) compares the first sensed value with one or more second sensed values sensed by the security paper sensor (20); when the comparison value is higher than the predetermined value When the defined reference value is defined, the printing paper is determined to be security paper, and when the comparison value is lower than the predefined reference value, the printing paper is determined to be plain paper.

When the printing paper is determined to be the security paper, the multifunction printer control device (300) activates the signal from the subsequent writing sensor (22) to perform charging, exposing, developing, transferring, fixing, cleaning and static elimination. but when the printing paper is determined to be plain paper, the multifunction printer control device (300) turns off the switch (33) to turn off the transmission from the writing sensor (22) to the printer engine controller (40) signal, or to output blank paper or allow the printer engine controller (40) to stop the BLDC motor (90) to cause paper jams, so no printing operation is performed.

28 is a diagram illustrating the time when the security paper sensor in the multifunction printer or security system for security paper senses a first sensing value and the time when the security paper sensor senses a first sensing value according to an embodiment of the present invention An explanatory diagram of the period of the second sensing value.

In Figure 28, "A" may be the output value from the first optical sensor (26). When the output value from the first optical sensor (26) changes due to the input printing paper, that is, when the waveform A shown in FIG. 28 changes from a high signal to a low signal, the security paper sensor (20) senses the first A sensing value, and then for a certain period of time when the printing paper passes, the security paper sensor (20) senses a second sensing value about the printing paper. The distance between the first optical sensor (26) and the security paper sensor (20) is preferably smaller than the distance between the printing paper on the feeding path and the subsequent printing paper. The reason for this is because the first sensing value should be sensed when there is no printing paper near the security paper sensor (20). However, if the distance is greater than the distance between the rear end of the previous printing paper and the front end of the subsequent printing paper, when there is printing paper near the security paper sensor (20), the first sensing value can be sensed, which will result in an inaccurate determination of the safety paper.

In some embodiments, the first optical sensor (26) may be a paper feed sensor (18), and the security paper sensor (20) is located behind the paper feed sensor (18). Furthermore, in some embodiments, the second optical sensor (27) may be positioned behind the security paper sensor (20) on the printing paper feed path. In Figure 28, "B" can be an output value from the second optical sensor (27), and the second sensing value It may be the value sensed by the security paper sensor (20) before the second optical sensor (27) senses the printing paper. Therefore, the security paper sensor (20) will sense the magnetic field changes caused when the front of the printing paper passes. The multifunction printer control device (300) compares the first sensed value with one or more second sensed values sensed by the security paper sensor (20); when the comparison value is higher than the predetermined value When the defined reference value is defined, the printing paper is determined to be security paper; and when the comparison value is lower than the predefined reference value, the printing paper is determined to be plain paper. In addition, when the printing paper is determined to be plain paper, the multifunction printer control device (300) may use a separate alarm member (sound, indicator light, etc.) to notify about this.

FIG. 29 is a plan view illustrating that a security paper sensor is provided on a PCB in a multifunction printer or security system for security paper according to an embodiment of the present invention. 30 is an explanatory diagram illustrating a distance between a first optical sensor and a security paper sensor in a multifunction printer or security system for security paper according to an embodiment of the present invention.

According to one embodiment of the present invention shown in FIG. 29, a first optical sensor (26) for sensing whether there is printing paper along the printing paper feeding direction is provided on a PCB (28), and then , a security paper sensor (20) for sensing whether the printing paper to be fed is security paper is arranged on it. When the first optical sensor (26) senses the unsensed to-be-determined printing paper, the security paper sensor (20) senses a first sensing value, and then prints the paper for a certain period of time. One or more second sensing values related to the corresponding printing paper are sensed on the feeding path.

Please refer to FIG. 30, the distance between the first optical sensor (26) and the security paper sensor (20) is preferably smaller than the distance between the printing paper on the feeding path and the subsequent printing paper. The reason for this is because the first sensing value should be sensed when there is no printing paper near the security paper sensor (20). However, if the distance is greater than the distance between the rear end of the previous printing paper and the front end of the subsequent printing paper, when there is printing paper near the security paper sensor (20), the first sensing value can be sensed, which lead to an inaccurate determination safety paper. In certain embodiments, the PCB (28) may include one or more holes, and the first optical sensor (26) may be provided in consideration of the distance between successively fed printing sheets in the corresponding printer in any of these holes. Also, in some embodiments, the PCB (28) may include one or more holes, and the first optical sensor (26) may be disposed in each of the holes, ie, the PCB (28) Two or more first optical sensors (26) may be included that are spaced apart along the printing paper transport direction. In this case, the multifunction printer control device (300) is controlled from two or more first optical sensors (26) in consideration of the distance between continuously fed printing sheets in the printer used. ) to select the first optical sensor (26) to sense whether there is printing paper to be fed, and when the selected first optical sensor (26) senses the printing paper to be determined, control the security paper A sensor (20) senses the first sensing value. In some embodiments, the security paper sensor (20) disposed on the PCB (28) may be formed using a rod shape perpendicular to the printing paper feeding direction, in which case the security paper sensor (20) may be The wide surface in the transverse direction of the printing paper is sensed in a short time, which results in high accuracy sensing of the security paper. The PCB (28) can be an FPCB (28), and a grounded metal mold (29) for removing static electricity contacting the printing paper can be further disposed on the printing paper contacting portion of the FPCB (28). In some embodiments, a second optical sensor (27) may be positioned behind the security paper sensor (20) on the printing paper feed path of the PCB (28). In this case, the security paper sensor (20) can sense the second sensing value before the second optical sensor (27) senses the printing paper.

Therefore, the security paper sensor (20) will sense the magnetic field changes caused when the front of the printing paper passes. The multifunction printer control device (300) compares the first sensed value with one or more second sensed values sensed by the security paper sensor (20); when the comparison value is higher than the predetermined value When the defined reference value is defined, the printing paper is determined to be security paper; and when the comparison value is lower than the predefined reference value, the printing paper is determined to be plain paper. When the printing paper is determined to be security paper, the multifunction printer control device (300) The KCMY head actuating switch (32) is activated by the KCMY head switch control (31) to connect the KCMY head actuator and the KCMY LED head (30) or LSU (30), thus performing the printing process. At the same time, when the printing paper is determined to be plain paper, the multifunction printer control device (300) turns off the KCMY head actuation switch (32) through the KCMY head switch control (31), so as to disconnect the KCMY head actuation and the KCMY LED Head (30) or LSU (30), so no printing operation is performed. Since pages determined to be plain paper are not printed, it may be troublesome to reprint corresponding pages that have not yet been printed, but the user can be warned that the printing operation should be performed on security paper. At the same time, when the printing paper is determined to be plain paper, a separate alarm component (sound, indicator light, etc.) can be used to notify it, and it can also be recorded through the server connected to the network which user tries to use ordinary paper. paper printing.

Signals from the write sensor (22) to be enabled/disabled can also be controlled according to security paper or plain paper without enabling/disabling connections to the KCMY LED head (30) or LSU (30). After the printing paper enters and the first optical sensor (26) is activated, the security paper sensor (20) transmits the sensed first and second sensed values to the multifunction printer control device (300) . The multifunction printer control device (300) compares the first sensed value with one or more second sensed values sensed by the security paper sensor (20); when the comparison value is higher than the predetermined value When the defined reference value is defined, the printing paper is determined to be security paper; and when the comparison value is lower than the predefined reference value, the printing paper is determined to be plain paper. When the printing paper is determined to be the security paper, the multifunction printer control device (300) activates the signal from the subsequent writing sensor (22), so that the processes including charging, exposing, developing, transferring, fixing, cleaning and static electricity are performed. A series of printing processes are eliminated, but when the printing paper is determined to be plain paper, the multifunction printer control device (300) turns off the switch (33) to turn off the transmission from the writing sensor (22) to the printer engine A signal from the controller (40) to output blank paper or to allow the printer engine controller (40) to stop the BLDC motor (90) causing paper jams, so no printing operation is performed.

20: Security paper sensor

21:Feed sensor

22: write sensor

30: KCMY LED head/LSU

40: Printer Engine Controller

300: Multifunction Printer Control Unit

301: Sensing IC

302: Microcontroller

303: Port Parts

304: General purpose input and output

305: Switch parts

306: Power Supply Parts

311: I ² C communication port

331:I ² C communication port

332: RS232 port

333: Serial peripheral interface port

334:USB port

400: Multifunction Printer Firmware

Claims (3)

A multifunction printer control device that can be separately arranged in a multifunction printer, comprising a plurality of sensors arranged on a printing paper feeding path to determine the position of the printing paper on the paper feeding path, and a print The printer engine controller is used for receiving plural signals from the sensors, and the multifunction printer control device includes: a switch arranged on at least one of the sensors and the printer engine controller between, for switching the connection between at least one of the sensors and the printer engine controller; and a microcontroller configured to control the switch, and control the switch based on its judgment, The microcontroller turns on the switch, that is, connects at least one of the sensors and the printer engine controller, so that the printer engine controller normally receives the sensors from the sensors. at least one signal of the sensor, or, wherein the microcontroller closes the switch, that is, disconnects the connection between at least one of the sensors and the printer engine controller, so that the printer The engine controller cannot receive at least one signal from the sensors. The multifunction printer control device of claim 1, wherein the sensors include a write sensor and a paper feed sensor, and wherein on and off of the microcontroller is adapted to switch the Write the connection between the sensor and the printer engine controller. A multi-function printer control device separately arranged in a multi-function printer, comprising a plurality of sensors arranged on a printing paper feeding path to determine the position of the printing paper on the paper feeding path, a KCMY LED head or a laser scanning unit (LSU), and a printer engine controller for receiving complex signals from the sensors and transmitting print data to the KCMY LED head or the laser scanning unit, the The multifunction printer controls include: a switch, disposed between the printer engine controller and the KCMY LED head or the laser scanning unit, for connecting at least one of the sensors and the KCMY LED head or the laser scanning unit and a microcontroller configured to control the switch and control the switch based on its judgment, wherein the microcontroller opens the switch, that is, connects at least one of the sensors to the switch. The connection between the KCMY LED head or the laser scanning unit enables the KCMY LED head or the laser scanning unit to normally receive at least one signal from the sensors, or, wherein the microcontroller turns off the switch, That is, the connection between at least one of the sensors and the KCMY LED head or the laser scanning unit is disconnected, so that the KCMY LED head or the laser scanning unit cannot receive from the sensors of at least one signal.

Images