KR100228480B1 - Ascii code up-load method - Google Patents

Abstract

[Technical field to which the invention described in the claims belong]

The present invention relates to an ASCII code upload method of uploading an ASCII code generated by a printer.

[Technical Problem to Solve]

Upload ASCII code from the image data created in the printer to the host.

[Summary of the solution of the invention]

The printer converts the print data provided from the host into image data, storing the ASCII code in the image data, and uploading the stored ASCII code by the user of the printer. Uploading an ASCII code to a host; and receiving and storing the ASCII code uploaded from the printer by the host.

[Important Uses of the Invention]

Can be used in printers.

Description

How to upload ASCII code

1 is a block diagram of a typical host.

2 is a block diagram of a conventional laser beam printer.

3 is a flowchart at the host of the ASCII code upload method according to a preferred embodiment of the present invention.

4 is a flowchart of a printer of an ASCII code upload method according to a preferred embodiment of the present invention.

The present invention relates to a printer, and more particularly, to a method of storing print data in an ASCII code in a printer and then uploading it to a host when necessary.

A typical printer converts print data provided from a host into image data and then supplies the image data to a print engine to perform printing. The image data is composed of an ASCII code representing an image and a control code for controlling the print engine.

The user edits the image in an editor program of the host to provide the printer with print data corresponding to the edited image. At this time, the print data provided to the printer from the editor program has different control codes according to the editor program.

Accordingly, when a user edits an image in a specific editor program and wants to print the edited image in another editor program, since the control codes are different, it is impossible without compatibility between editor programs. However, compatible editor programs are limited. Accordingly, the user has the inconvenience of having to edit the image again even if the editor program is different even if the same image is used.

For example, after the user edits an image on the MS-WORD, the same image cannot be read and printed on the Hunminjeongeum. Accordingly, the user must edit the image already edited in MS-WORD on Hunminjeongeum.

In addition, in recent years, when the networking environment is developed, data produced by a particular editor program is often not useless. In order to solve the above problem, conventionally, a method of transmitting only data codes by using specific software is used. However, this method was inconvenient to have more specific software.

Accordingly, an object of the present invention is to provide an ASCII code upload method for uploading the ASCII code to a host when a request is made to upload the stored ASCII code after storing only the ASCII code in the image data of the print image at the time of printing. have.

The present invention for achieving the above object is a step in which the printer converts the print data provided from the host to the image data, storing the ASCII code in the image data, and uploading the stored ASCII code by the user of the printer Is requested, the printer uploading the stored ASCII code to a host, and the host receiving and storing the ASCII code uploaded from the printer.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description and the annexed drawings, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. And a detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a block diagram of a typical host to which the present invention is applicable. The CPU 10 of the host executes a set program to control the host as a whole. The input / output interface 14 interfaces signals input and output between the CPU 10, the input device 16, the auxiliary storage device 18, and the printer 20. The input device 16 is a device for inputting various information or commands to the CPU 10 and may be a keyboard or a mouse. As the auxiliary storage device 18, a hard disk drive, a floppy disk drive, or the like is used. In addition to the printer 20, a plotter may be used as the output device. The display controller 22 displays various processing information of the CPU 10 on the monitor 24 under the control of the CPU 10. The memory 12 stores an execution program of the CPU 10 and temporarily stores processing data of the CPU 10. The memory 20 is composed of ROM and RAM.

Although the present invention is not only performed by a laser beam printer, a laser beam printer is applied as the printer 20 in a preferred embodiment of the present invention to aid the understanding of the present invention.

2 shows a block diagram of a conventional laser beam printer. The laser beam printer is largely comprised of a video controller 26, a print engine unit 36, and an OPE 34. The video controller 26 is composed of a computer interface 28, a video controller 30, and an engine interface 32. The computer interface 28 is connected between the host computer and the video control unit 30 to interface the input and output signals. The video control unit 30 includes a RAM for storing a variety of data input from the OPE 34 and a host computer in which a ROM having a control program is stored therein, and the print data received from the computer interface 28. Is converted into image data that can be processed by the print engine and transmitted to the print engine unit 36. The engine interface 32 interfaces an input / output signal with the print engine 36 under the control of the video controller 30. The OPE 34 is controlled by the video controller 30 and includes a plurality of keys for inputting various commands and a display device for displaying information according to the operation of the laser beam printer 20. The print engine unit 36 includes a video interface 38, an engine control unit 40, an input / output (I / O) interface 42, a sensor circuit 44, an instrument driving unit 46, and an electrophotographic developing unit 48. Is connected to the video controller 26. The video interface 38 provides an interface for transmission and reception signals between the video controller 26 and the engine controller 40. The engine control unit 40 controls the mechanical drive unit 46 and the electrophotographic developing unit 48 under the control of the video controller 26 and prints an image according to the image data received from the video controller 26 on paper. In addition, the engine control unit 40 detects an operation state of each part of the print engine unit 36 through the sensor circuit 44. Examples of the operation state of each of the above portions are paper feeding and conveying states. The I / O interface 42 is connected between the engine control unit 40, the sensor circuit 44, the mechanical drive unit 46, and the electrophotographic developing unit 48 to interface the input / output signals of the engine control unit 40. The sensor circuit 44 drives various sensors for sensing the operation state of each part of the print engine unit 36, the paper feeding and conveying state, the amount of developer, and the like, and sends detection signals of the respective sensors to the engine controller 40. to provide. The mechanism driving unit 46 drives various mechanisms for feeding, conveying and printing paper sheets under the control of the engine control unit 40, and the electrophotographic developing unit 48 controls the image data under the control of the engine control unit 40. Print the image on paper.

Referring to FIG. 3, which shows a flowchart of the host of the ASCII code upload method according to the preferred embodiment of the present invention, in step 50, the CPU 10 of the host inputs an input device for printing an image edited by a user. Use (16) to command the transfer of print data to find out whether the corresponding data is input. At this time, if the user commands the transfer of the print data, the CPU 10 proceeds to step 52 and transmits the print data to the printer 20. When the transmission of the print data is finished, the CPU 10 performs step 54. In step 54, the CPU 10 searches whether the ASCII code is received as the printer 20 uploads the ASCII code. At this time, when the printer 20 uploads the ASCII code, the CPU 10 proceeds to step 56 and stores the ASCII code transmitted by the printer 20.

Referring to FIG. 4, which shows a flow chart of the printer 20 of the ASCII code upload method according to the preferred embodiment of the present invention, when power is supplied to the printer 20, the video controller 30 performs step 58. Proceed to perform initialization. After the initialization, the video controller 30 proceeds to step 60 to search whether print data is received from the host. At this time, if print data is received from the host, the video controller 30 proceeds to step 62 to search whether the data ASCII code change mode is set. In this case, when the first specific key provided in the OPE 34 is input by the user, an ASCII flag is set and an ASCII code conversion mode is set. Accordingly, in step 62, the video controller 30 searches whether the ASCII flag is set and searches whether the ASCII code conversion mode is set. At this time, the video controller 30 proceeds to step 64 if the ASCII code conversion mode is set, and proceeds to step 72 otherwise. In step 64, the video controller 30 searches whether the ASCII code is already stored in the RAM. In this case, if the ASCII code is already stored in the RAM, the video controller 30 stores the operation in step 66. Otherwise, the video controller 30 proceeds to step 72. In step 66, the video controller 30 reads data for displaying a sentence inquiring the user whether to upload the ASCII code stored in the RAM. When the reading of the data is finished, the video controller 30 searches for the user's key input. Here, when the user wants to upload the ASCII code stored in the RAM, the user inputs an upload execution key provided in the OPE 34. At this time, if the upload execution key is input, the video controller 30 proceeds to step 68; otherwise, proceeds to step 72. In step (68), the video controller 30 transmits the ASCII code stored in the RAM to the host. While transmitting the ASCII code, the video controller 30 proceeds to step 70 to search whether the transfer of the ASCII code stored in the RAM has ended. In this case, if the transmission of the ASCII code stored in the RAM has ended, the video controller 30 proceeds to step 72. Otherwise, the video controller 30 continuously transmits the ASCII code stored in the RAM to the host. In step (72), the video controller 30 converts the print data received from the host into image data, and in particular, the ASCII code of the image data is separately stored in the RAM. When the conversion of the image data and the storage of the ASCII code are completed, the video controller 30 proceeds to step 74 to search whether the transmission of print data from the host is completed. At this time, if the transmission of the print data from the host is not completed, the video controller 30 proceeds to step 62, otherwise proceeds to step 76 to provide the image data to the print engine 36. The print engine unit 36 receives the image data and prints an image according to the image data.

As described above, the present invention allows the printer to take and store only ASCII code from the image data generated by emulating print data, and upload it to the host. Accordingly, the host uploading the ASCII code can use the ASCII code in various editor programs. Accordingly, there is a convenience in that even an image edited by a specific incompatible editor program can be printed using another editor program.

In particular, pure ASCII codes are absolutely necessary when sending mails using the Internet, etc. It is very convenient to use the ASCII codes uploaded according to the present invention when sending mails as described above.

Claims (2)

In the ASCII code upload method, the printer converts the print data provided from the host into image data, storing the ASCII code in the image data, and uploading the stored ASCII code by the user of the printer. And uploading the ASCII code stored by the printer to a host, and receiving and storing the ASCII code uploaded from the printer by the host. In the ASCII code upload method, the printer converts the print data provided from the host into image data, storing the ASCII code in the image data, and uploading the stored ASCII code by the user of the printer. Uploading the ASCII code stored by the printer to a host; receiving and storing the ASCII code uploaded from the printer by the host; and uploading the ASCII code to the host is completed. And printing the image data.