JPH0718852U - Printer - Google Patents

Abstract

(57) [Summary] [Purpose] When a user wants to interrupt printing during printing, a printer that can quickly interrupt the printing and quickly move to the next printing with a simple configuration is provided. provide. A printer includes a printing unit 2, an interface 4 for connecting to an external computer 3, and a central processing unit 5 for controlling the interface 4 and the printing unit 2.
Reset switch 6 for initializing printer functions
Have and. The central processing unit 5 interrupts printing when the reset switch 6 is closed, initializes the function of the printer, and holds the interface 4 in the READY state while the reset switch 6 is closed. In the meantime, the data transmitted from the computer 3 is discarded. As a result, it is possible to prevent the printing of data that does not need to be printed after the printing is interrupted, and to move to the next printing quickly.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a printer.

[0002]

[Conventional technology and problems to be solved]

 In conventional printers, if data is sent from the computer to the printer and you want to interrupt printing while the printer is printing, the printer that has the print stop function in the computer does not print. Although it can be interrupted, printing cannot be interrupted if the above function is not provided.

Some conventional printers have a reset switch for resetting the printing function. Close the reset switch when initializing the printer functions. This initializes the printer functions, erases the data already entered in the printer, and interrupts printing. It also keeps the interface in the BUSY state during initialization and prohibits the printer from accepting data sent from the computer during initialization. When the initialization, which is completed in a short time, is completed, the interface switches to the READY state, the printer can accept the above-mentioned prohibited data, and the printer prints it. That is, although the printing can be interrupted by closing the reset switch, the remaining data described above is printed after the printing is interrupted. Therefore, when it is not necessary to print the remaining data, the ink ribbon, recording paper, etc. were wasted. Further, in order to perform the next printing, it is necessary to wait until the printing of the remaining unnecessary data described above is completed, which wastes time.

As a conventional technique for solving the above-mentioned problems, Japanese Utility Model Laid-Open No. 1-108758 is known. Normally, this is to temporarily store the data from the computer etc. in the receiving buffer, and this data is sent to the printing circuit and printed, but when it is desired to interrupt the printing during printing, it was stored in the receiving buffer. The circuit is switched so that the data is sent to the data erasing circuit, and this data is erased. However, this prior art requires a changeover switch for changing over the above-mentioned circuit, which complicates the structure and increases the cost.

An object of the present invention is to make it easy for a printer to receive data from an electronic calculator and read and discard it when printing is interrupted during printing so that the next printing can be quickly started. It is to provide a printer made possible by the configuration.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, a printer according to the present invention initializes a printing unit, an interface for connecting to an external electronic computer, a central processing unit for controlling the interface and the printing unit, and a printer function. In a printer having a reset switch for resetting, the central processing unit initializes the function of the printer when the reset switch is closed, and keeps the interface in the READY state while the reset switch is closed, During that time, the interface controls the interface so that the data sent from the above computer is discarded, or the data sent from the computer during that period is discarded, and when the reset switch is opened, the interface is switched to the BUSY state. It prohibits the acceptance of data from a computer. .

[0007]

[Action]

 If you want to interrupt printing during printing and close the reset switch of the printer, the central processing unit interrupts printing while the reset switch is closed and keeps the interface in the READY state. By reading the data sent from the computer by the device or the interface, it is possible to prevent the printing of the data which is not necessary to print. In other words, when printing is interrupted, both the data already entered in the printer and the data sent from the computer to the printer after that can be erased, and both the computer and printer can immediately end printing, and the next You can move to printing.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. First, the configuration of this embodiment will be described with reference to FIG. The printer 1 includes a printing unit 2 including a carriage driving unit, a carriage, a print head and the like (all not shown), an interface 4 for connecting to an external electronic computer 3, a printing unit 2 and an interface 4. And a central processing unit 5 for controlling The central processing unit 5 is provided with a reset switch 6.

Next, the operation of this embodiment will be described with reference to FIG. At the time of printing, data is sent from the electronic computer 3 to the printer 1 via the interface 4. When it is desired to stop printing the data in the computer 3, the reset switch 6 of the printer 1 is closed. Then, the data already entered in the printer is erased and printing is interrupted. Further, the interface 4 becomes the READY state, the electronic computer 3 confirms this, and transmits the data to the interface 4. At this time, the printer 1 discards the transmitted data. Then, the printing function is reset. As described above, while the reset switch 6 is closed, the interface 4 is in the READY state, and the printer 1 discards the data transmitted from the electronic computer 3. As a result, it is possible to prevent the printing of data that does not need to be printed, and the computer 3 and the printer 1 can be immediately put into the printing completed state, and the next printing can be started quickly.

After that, when the reset switch 6 is opened, the interface 4 enters the BUSY state, prohibits the acceptance of data from the electronic computer 3, and the printer 1 starts the initial operation for printing.

[0011]

[Effect of device]

 According to the present invention, the printing is interrupted by closing the reset switch without using a special printer having a print stopping function, and when the printing is interrupted, the data already input in the printer and the data sent to the printer from the electronic computer thereafter. The received data can be erased together, data that does not need to be printed after printing is interrupted can be prevented, and the next printing can be started quickly. This helps reduce costs by shortening work time, saving ink ribbon, recording paper, etc.

Further, since the reset switch for initializing the function of the printer is provided with the function of reading the data from the electronic computer, the configuration is simple and the cost is reduced.

[Brief description of drawings]

FIG. 1 is a circuit block diagram of a printer according to the present invention.

FIG. 2 is a flow chart showing a control operation of the above printer.

[Explanation of symbols]

 1 Printer 2 Printing Means 3 Computer 4 Interface 5 Central Processing Unit 6 Reset Switch

Claims (1)

[Scope of utility model registration request] 1. A print means, an interface for connecting to an external computer, a central processing unit for controlling the interface and the print means, and a reset switch for initializing the function of the printer. In the printer, the central processing unit initializes the function of the printer when the reset switch is closed, and the interface is set to R while the reset switch is closed.
It is controlled to hold the EADY state and discard the data transmitted from the computer during that period, or control the interface to discard the data transmitted from the computer during that period, and when opening the reset switch, A printer characterized in that the interface is switched to the BUSY state to prohibit the reception of data from the electronic computer.