JPH0780321B2 - Printer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a printer for processing start codes and stop codes of bar codes.

(Prior Art) When printing a barcode based on, for example, NW7 or Code39 that requires a start code and a stop code in a conventional barcode printer, enter the start code and stop code before and after the barcode data, respectively. is doing.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional device, in the case of a bar code that requires a start code and a stop code, if only one of the start code and the stop code is not input, the scanner There is a problem that the barcode cannot be read.

The present invention has been made in view of the above problems, and provides a printer that can accurately print a bar code with a start code and a stop code even if the user forgets to input either a start code or a stop code. The purpose is to do.

[Structure of Invention]

(Means for Solving the Problem) The printer of the present invention determines the necessity of the start code and the stop code based on the barcode type and the barcode input means for inputting the barcode type and the barcode data. Judging means for judging, start code detecting means for detecting whether the input data has a start code when it is judged that a start code and a stop code are necessary, and a start code by this start code detecting means When it is determined that there is no start code, a start code adding unit that shifts the input data by 1 to add a start code, and a stop code to the input data when the determination unit determines that a start code and a stop code are necessary There is a stop code detection means to detect whether there is A stop code adding means for adding a stop code to the input data when the code detecting means determines that there is no stop code, and printing based on the bar code inputting means, the start code adding means and the stop code adding means. And a printing means for performing.

(Operation) In the present invention, first, the type of barcode is input by the barcode input means, and the determination means determines whether or not a start code and a stop code are required. When it is judged by this judging means that the start code and the stop code are necessary, first, the start code detecting means detects whether or not the input data has a start code,
When it is determined that there is no start code, the input bar code data is shifted by 1 and a start code is added. Next, the stop code detecting means detects whether or not the input data has a stop code. When it is determined that the stop code does not exist, the stop code is added.

Then, based on the bar code inputting means, the start code adding means and the stop code adding means, the printing means always prints the start code and the stop code on the bar code requiring the start code and the stop code.

Embodiment An embodiment of the printer of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a bar code input means for inputting bar code type and bar code data, which is composed of, for example, a keyboard. The bar code input means 1 has bar codes such as NW7 or Code39. A judgment means 2 for judging whether a start code and a stop code are necessary or not is connected to the code. A start code detecting means 3 for detecting the presence / absence of a start code and a stop code detecting means 4 for detecting the presence / absence of a stop code are connected to the judging means 2, and a start code is added to the start code detecting means 3 to add a start code. Stop code adding means 6 for adding a stop code is connected to the means 5 and the stop code detecting means 4. A printing unit 7 is connected to the bar code input unit 1, the start code adding unit 5, and the stop code adding unit 6, and the printing unit 7 is connected to the printing unit 7.
Is printed according to the bar code input means 1, the start code addition means 5 and the stop code addition means 6.

Next, the operation of the above embodiment will be described.

First, the type of barcode is input by the barcode input means 1 (step), and the determination means 2 determines whether the start code and stop code are required barcodes (step). In the case of a bar code that requires a start code and a stop code, the beginning of the input data is detected (step), the start code detecting means 3 detects whether the beginning is the start code (step), and the start is performed. If there is no code, shift all input data one by one (step), add a start code to the beginning (step), detect the end (step), and if there is a start code at the step, enter it Along with the case of detecting the end of the generated data (step), the stop code adding means 6 detects whether or not there is a stop code (step). When there is no stop code, the stop code is added next to the end of the input data by the stop code adding means 6 (step), the data length is added (step), and the start code and the stop code are unnecessary in the step. When it is determined that there is a stop code and when it is determined that a stop code is included in the step, the printing means 7 prints a barcode (step), and the processing is completed.

〔The invention's effect〕

According to the present invention, when the bar code input means inputs the kind of the bar code and the start code and the stop code are necessary, the start code and the stop code are detected by the start code detecting means and the stop code detecting means. However, when there is no start code or stop code, the start code or stop code is added by the start code addition means or the stop code addition means respectively. Barcodes with both start and stop codes can be printed even if you forget to enter any of them.

[Brief description of drawings]

FIG. 1 is a block diagram showing a printer according to an embodiment of the present invention, and FIG. 2 is a flowchart of the same as above. 1 ... Bar code input means, 2 ... Judgment means, 3 ... Start code detection means, 4 ... Stop code detection means, 5 ... Start code addition means, 6 ... Stop code addition means, 7 ... Printing means.

Claims (1)

[Claims] 1. A bar code input means for inputting a bar code type and bar code data, a judging means for judging whether a start code or a stop code is necessary based on the bar code type, and this judging means. When the start code and the stop code are judged to be necessary, the start code detecting means for detecting whether or not the input data has the start code, and the input when the start code detecting means determines that there is no start code Start code adding means for shifting the data by 1 and adding a start code, and stop code detecting means for detecting whether or not the input data has a stop code when the judging means judges that the start code and the stop code are necessary With this stop code detection means, the stop code is A stop code adding means for adding a stop code to the input data when it is determined to be yes, and a printing means for printing based on the bar code inputting means, the start code adding means, and the stop code adding means. A printer characterized by that.