JPS6082372A - Bar-code printer - Google Patents

Abstract

PURPOSE:To prevent erroneous bar-code printing due to a mistake in an input operation, by displaying an error when a check digit does not coincide with a check digit computed automatically on the basis of input data. CONSTITUTION:When an input of 7-digit or 12-digit data is completed, a check digit C/D is computed automatically on the basis of the input data and compared with a key-input check digit based on a bar-code table. When there is a coincidence between these digits, the input is determined as correct, and the input check digit C/D is displayed in the C/D field of a bar-code display unit 7, whereby setting is completed. When there is no coincidence, on the other hand, the input data are determined to be erroneous, and a process of error check is taken. Since the bar-code data and the check digit are inputted by keys with the bar-code table being monitored, erroneous bar-code printing can be prevented.

Description

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

Technical Background of the Invention and Problems Therein Generally, there are 13-digit standard versions and 8-digit shortened versions of barcodes, but when printing barcodes, 12-digit or 7-digit data excluding the 1-digit check digit is used. The key is set manually. and,
When 12-digit or 7-digit data is input in this way, a check digit is automatically calculated and set based on the data.

However, since the number of digits is large (12 digits or 7 digits), input errors by the operator are likely to occur. 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 has been made in view of the above points, and provides a palcode printer that can prevent incorrect barcode printing due to input operation errors when barcodes are set manually using keys. The purpose is to obtain.

Summary of the Invention The present invention manually inputs a check digit along with barcode data, and when the check digit that is automatically calculated based on the input data does not match, it is determined that there is an error in the input data. The system is configured to notify the operator of input errors by displaying an error message.

Examples 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 wound up.The mount 2 and labels 3 may be set on a hand labeller 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. The display section 5 displays FLAG, C0DE, PC/D (price check digit), PRICE [C0DE), C/D (check digit) for 13 digits or FLAG, C0DE, C for 8 digits as shown in FIG. /
Barcode display section 7 and LABEL (”:0U
It consists of a three-digit quantity display section 8 indicated by NT, a three-digit department display section 9 indicated by DEPT and C0DE, a five-digit price display section 10 indicated by PRICE, and a registered number display section 11 indicated by REG. On the other hand, the operation section 6 is provided with various switches and keys as shown in FIG. 12 is a switch for switching between setting mode (lower row) and issuing mode (second row); 13
is a switch that sets the barcode format to 13 digits (upper row) or 8 digits (lower row). 14 is a numeric keypad from 0 to 9, 15 is a C key, 16 is an issue number key, and 17 is a price key.

18 is the department key, 19 is the stop key, 20 is the PLO key,
21 is an astal key, 22 is a registration key, 23 is an issue key, and 24 is a quantitative issue key. Further, as shown in FIG. 4, a mode changeover switch 25 is provided on the bottom surface of the printer body 1 for switching between an initial setting mode and a setting/issuance mode.

Figure 5 is a block diagram of the RAM2 for backup.
A printing mechanism 29 for printing barcodes and the like is connected to the CPU 27 having the CPU 6 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 I10 initialization, memory initialization, display scanning, department erase switch,
After reading 5TATUS of the price erase switch, etc., the error check, mode check, and key processing routines are repeated.

Now, in the error check routine, as shown in Fig. 7, when the error flag ERRF = 1, an error is displayed and the buzzer 32 is sounded. Flag E RRI”
= 0, and the buzzer 32 is stopped.

Further, in the mode check routine, as shown in FIG. 8, the state of the mode changeover switch 12.25 is read.

As a result, when the initial setting mode is selected by the mode changeover switch 25, the initial flag INITF=1 remains unchanged, but if it is 0, INITF=1, and other Issue flag R
EGF, setting 1, Sonono S ET F, quantity flag C, 0UNTF, department flag DPF, price flag P
All RICFs are set to 0 and the initial settings are displayed.

On the other hand, when the setting mode is selected by switch 12.25, if setting flag 5ETF = 1, it remains unchanged, but if it is 0, only this setting flag 5ETF is set to 1, and the initial display of setting mode is performed. . Furthermore,
In the issue mode, only the issue flag REGF is set to 1 to provide an initial display of the issue mode.

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 1-issue mode, the data and check digit shown on the barcode table (not shown) are sequentially input using the numeric keypad 14, and this input data is input to the numeric keypad register NREG. In this operation, the contents of the numeric keypad register NREG are sequentially displayed on the barcode display section 7 until the data input is completed.

However, once the 7-digit or 12-digit data input is completed,
A check digit C/D is automatically calculated based on this key-entered data and compared with the key-entered check digit based on the barcode table. If these two match, the input is considered correct, and the input check digit C/D is displayed as the C/D on the barcode display section 7.
column and complete the setting. Set 15SUOK=1. On the other hand,
If they do not match, there is a mistake in the input data.
The error flag ERRF is set to 1, and the error check (
The process shown in FIG. 7) is performed. Here, in this embodiment, since the conventional method is also possible, the check digit I-C/
It has an internal switch to select whether or not to manually press the key D. When the C/D key is set to not be pressed manually, the check digit C/D automatically calculated based on the input data is displayed on the barcode display section 7. It is displayed in the C/D column and automatically set, and when the setting is complete, 15SUOK=1.

Thereafter, by pressing the issue key 23, a label is issued (barcode printing).

In other words, you manually input the barcode data and check digit while looking at the barcode table, but if there is an error in the input data, the check digit automatically calculated based on this data and the manually input check digit are input. - do not match, and even if you enter the data correctly manually and make a mistake in checking the check digits 1-, they do not match.Therefore, if you manually enter the data correctly, the barcode will be printed. Prevents printing of incorrect barcodes due to input errors. It is possible that mistakes may occur in both the data and the check digit, but this is rare, and it is extremely rare for the automatically calculated check digit to match the check digit entered manually. And I ignore it.

Effects of the Invention As described above, the present invention manually generates the check digit, compares the check digit with the check digit automatically calculated based on the input data, and displays an error message if they do not match. ,
If an input operation error occurs, the bar code will not be printed as is, and therefore, incorrect bar code printing due to input errors can be prevented.

[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. Applicant Tokyo Electric Co., Ltd.

Claims (1)

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