JPH0263067B2 - - Google Patents

Description

[Detailed description of the invention] Technical field of invention The present invention relates to a barcode printer.

Technical background of the invention and its problems In general, barcodes include a 13-digit standard version and an 8-digit shortened version, but when printing barcodes, the 1-digit check digit is excluded.
12-digit or 7-digit data is set by key input. And like this 12 digits or 7
When digit data is input, a check digit is automatically calculated and set based on the data.

However, since the number of digits is large (12 or 7 digits), input errors by the operator are likely to occur. and,
Even if an input error occurs, a check digit is automatically calculated and set based on the erroneous data, and since there is no input error determination means, an erroneous bar code will be printed.

Purpose of the Invention The present invention was made in view of the above points, and barcode settings are performed by key input.
To provide a barcode printer capable of preventing erroneous printing of barcodes due to input operation errors at that time.

SUMMARY OF THE INVENTION The present invention allows a check digit to be entered with a key together with barcode data, and when the check digit that is automatically calculated based on the input data does not match, it is possible to detect an error in the input data. Therefore, the system is configured to notify the operator of the input error by displaying an error message.

Embodiment of the Invention An embodiment of the present invention will be described based on the drawings.
First, FIG. 1 shows the external appearance of a printer main body 1, in which barcode printing is performed while winding up a label 3 together with a mount 2 in the direction of the arrow. When barcode printing is completed for a predetermined number of labels 3, the mount 2 is cut with a cutter 4, and the wound mount 2 and labels 3 are set on a hand label or the like.

Further, a display section 5 and an operation section 6 are provided on the front surface of the printer main body 1. As shown in Figure 2, the display section 5 displays 13 digits of FLAG, CODE, PC/D (price check digit), PRICE [CODE], and C/D.
(check digit) or FLAG for 8 digits,
CODE, C/D barcode display section 7 and
The 3-digit number display section 8 indicated by LABEL COUNT and
The three-digit department display section 9 indicated by DEPT.CODE and
It consists of a 5-digit price display section 10 indicated by PRICE and a registration number display section 11 indicated by REG. On the other hand, the operation section 6
As shown in FIG. 3, various switches and keys are provided. 12 is a switch for switching between setting mode (lower row) and issuing mode (upper row), and 13 is a switch for switching between setting mode (lower row) and issuing mode (upper row).
This is a switch to set the barcode format to 13 digits (upper row) or 8 digits (lower row). 14 is 0~
9 is the numeric keypad, 15 is the C key, 16 is the issue number key, 17 is the price key, 18 is the department key, 19 is the stop key, 20 is the PLU key, 21 is the asterisk key,
22 is a registration key, 2 is an issue key, and 24 is a quantitative issue key. In addition, the initial setting mode is set/set on the bottom of the printer main body 1 as shown in Fig. 4.
A mode changeover switch 25 is provided to change over the issuing mode.

Figure 5 is a block diagram of the backup
A printing mechanism 29 for printing barcodes and the like is connected to the CPU 27 having the RAM 26 via an interface 28. Further, a keyboard 6 is connected to the CPU 27 via a display circuit 30, and a buzzer 32 is further connected to the CPU 27.

In such a configuration, FIG. 6 shows the main flow, which includes I/O initialization, memory initialization, display scanning,
Department deletion switch, price deletion switch, etc.
After reading STATUS, the error check, mode check, and key processing routines are repeated.

Here, in the error check routine, as shown in FIG. 7, when the error flag ERRF=1, an error is displayed and the buzzer 32 sounds, and when the clear key 15 is pressed, the error is canceled and the error flag ERRF=0. and stops the buzzer 32.

Further, in the mode check routine, the states of the mode changeover switches 12 and 25 are read, as shown in FIG. As a result, mode selector switch 2
When the initial setting mode is selected by 5, if the initial flag INITE = 1, it remains as is, but if it is 0, INITF = 1, and other issue flags REGF, setting flag SETF, and number of sheets are set. The flag COUNTF, department flag DPF, and price flag PRICF are all set to 0 and are displayed as initial settings. On the other hand, when the setting mode is selected by the switches 12 and 25, if the setting flag SETF=1, it remains as is, but if it is 0, only this setting flag SETF is set to 1, and the initial display of the setting mode is performed. .
Furthermore, if it is in issue mode, issue flag REGF
is set to 1, and the initial display of the issue mode is made.

Data setting of the bar code to be printed is performed in the issue mode, and FIG. 9 shows the key processing routine at that time. That is, after setting the issue mode, data shown in a bar code table (not shown) and check digits are sequentially input using the numeric keypad 14, and this input data is input to the numeric keypad register NREG. In this operation, the numeric keypad register is pressed until data input is completed.
The contents of NREG are sequentially displayed on the barcode display section 7. When the 7-digit or 12-digit data input is completed, the check digit C/D is automatically calculated based on this key-in data and compared with the key-in check digit based on the barcode table. Ru. If these two match, the input is considered correct, and the input check digit C/D is displayed in the C/D column of the barcode display section 7, setting completion ISSUOK = 1. On the other hand,
If they do not match, it means that there is an error in the input data, the error flag ERRF is set to 1, and the error check process (FIG. 7) is performed. Here, in order to enable the conventional method, this embodiment has an internal switch for selecting whether or not to input the check digit C/D by key.
When set to no input, check digit C/D automatically calculated based on input data.
is displayed in the C/D column of the barcode display section 7 and automatically set, and the setting is completed and ISSUOK=1. Thereafter, by pressing the issue key 23, a label is issued (barcode printing).

In other words, you key-in the barcode data and check digit while looking at the barcode table, but if there is a mistake in the input data, the check digit automatically calculated based on this data and the key-input check digit are displayed. Also, even if you input the data correctly and make a mistake in the key input of the check digit, it will not match. It can prevent incorrect barcode printing due to mistakes. It is possible that mistakes may occur in both the data and the check data, but this is rare.
Moreover, it is extremely rare that the automatically calculated check digit at that time and the key-input check digit match, and can be ignored.

Effects of the Invention As described above, the present invention allows the user to input a check digit using the keypad, compares this check digit with the check digit automatically calculated based on the input data, and displays an error message when the check digit does not match. Therefore, even if an input operation error occurs, the bar code will not be printed as is, and it is possible to prevent incorrect bar code printing due to an input error.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of the exterior, Fig. 2 is a front view of the display section, Fig. 3 is a plan view of the operating section, and Fig. 4 is a plan view of the mode changeover switch. 5 is a block diagram, and FIGS. 6 to 9 are flowcharts.

Claims (1)

[Claims] 1 Set the barcode data and check digit by key input, compare the check digit automatically calculated based on the key input data and the key input check digit, and display an error if they do not match. , a barcode printer that prints a barcode when there is a match.