JPS6213159Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates to a card punch device, and more particularly to a print control mechanism improved for its card copying function.

(b) Prior Art and Problems Punch cards are often used as a means of inputting data into electronic computers.
A perforation card is usually divided into a perforation area and a printing area. The perforation area can perforate information of n digits and m bits, and the printing area has characters printed corresponding to the perforation information so that the coded information can be understood at a glance. This is an area where

Therefore, such a card punching machine or card punching device has the functions of punching the card and printing on the card.

FIG. 1 is a block diagram showing the functional configuration of the card punching device.

To create a new normal card, the operator operates the keyboard KB to input data to the control unit CONT, sends printing data PRDA and drilling data PCDA to the printing part PRT and drilling part PCH, respectively, and The perforation part PCH is driven to perform perforation printing on the perforation card CD.

Furthermore, the card punch device also has a copying function. This copying function is used when you want to create a card that is exactly the same as a card that has been created, or when you want to modify the perforation contents. This copying function is a function that reads information in the perforation area of the original card, and based on the read information, perforates the perforation area and prints in the printing area of another new card. For this function, the card punching device is equipped with a card reader CDR that reads the card punching area optically or mechanically. That is, if the original card CD1, which has already been punched and printed, is input to the card reader CDR instead of the input using the keyboard KB, the copy card CD2 can be output in the same manner as input from the keyboard KB.

Now, let's explain the print section PRT in a little more detail. FIG. 2 is a block diagram showing this printing section PRT. The print data PRDA is sent to the print unit PRT and drives the drive unit DV, which drives the X drive mechanism.
The code plate CDP is driven in the X direction and the Y direction via the XPOS and Y drive mechanisms YPOS, respectively, to occupy the position specified by the print data PRDA. On the surface of the code plate CDP, a group of small protrusions corresponding to printing in a predetermined dot arrangement are arranged.
After positioning, the impactor INP projects in the → direction in the figure, hits one end of the printing wire W, and feeds the other end of the printing wire W through the printing ribbon by a card feeding mechanism (not shown). Predetermined characters are printed on the paper surface of the copy card CD2 that has been received.

Now, a code is defined for each character (including numbers and symbols), but if an undefined code is input, the drilling itself will be performed as is, so there is no problem. Regarding printing, printing data other than the predetermined code will be sent to the printing unit PRT, which may cause damage to the printing mechanism itself.

For example, this may occur when trying to copy an original card CD1 created with a card punching device that has codes defined for both katakana characters and alphanumeric characters using a card punching device that has codes defined only for alphanumeric characters. .

In the past, in such cases, the operator would use the key switch KSW to input the print suppression signal PRSUP, which would shut off the printing function via the suppression section SUP. However, due to the nature of the card punch device, it is often operated by multiple operators, and sometimes operators will inadvertently forget to perform this operation, which often causes problems in maintaining the device.

(c) Purpose of the invention The present invention was created in view of the above points, and detects the presence of an undefined code from the information on the original card CD1 to be copied and automatically stops the printing function of the card punching device. This is intended to prevent the aforementioned operational errors in advance.

(d) Structure of the invention The purpose of the above invention is to provide a card punching device having a copying function of reading information punched in a medium and punching and printing on a medium different from the medium based on the read information. , a card punch characterized by having means for determining whether or not the read information is defined information, and means for preventing printing on the medium when the information is determined to be other than the defined information. This can be easily achieved with this equipment.

(e) Embodiments of the invention Examples of the invention will be described below with reference to the drawings. FIG. 3 shows an embodiment of an undefined code detection circuit in a card punching device based on the present invention. In this embodiment, it is assumed that the original card CD1 is created by a card punching device in which katakana codes and alphanumeric character codes are defined, and that only alphanumeric character codes are defined in the card punching device.

Here, in the Katakana code, 2 bits out of the 3 bits b0, b11, and b12 shown in the diagram of the 12-bit information are defined as code "1", so using this feature, the code is A1 as shown in the diagram. ,A2,A
The outputs of these three circuits are input to the OR circuit, and when the output is "1", the print suppression signal PRSUP controls the suppression unit SUP of the printing unit PRT of the card punching device to perform the printing function. This is to stop the

Incidentally, when the undefined code input from the aforementioned original card CD1 is a different type of undefined code, it is natural that the connection of the aforementioned undefined code detection circuit changes accordingly.

(f) Effect of the invention As is clear from the above explanation, if an undefined code detection circuit is attached to the card punching device according to the invention and the print suppression signal PRSUP is inputted, undefined codes will not be detected due to operator's careless operation. This has the effect of preventing signals from entering the printing unit PRT and causing problems such as equipment damage.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the configuration of the card punching device, Fig. 2 is a block diagram showing the printing section of the card punching device, and Fig. 3 is a circuit showing an embodiment of the undefined code detection circuit based on the present invention. It is a diagram. In the figure, KB is the keyboard, CONT is the control unit, PRSUP is the print suppression signal, PRT is the print unit,
PRDA is printing data, PCDA is drilling data, PCH
CDP is the code plate, CDR is the card reader, CD1 is the original card, CD2 is the copy card, KEW is the key switch, and SUP is the suppressor.

Claims (1)

[Scope of utility model registration request] In a card punch device having a copying function that reads information punched in a medium and performs punching and printing on a medium different from the medium based on the read information, it is determined whether the read information is defined information or not. A card punching device comprising: means for determining the information; and means for preventing printing on the medium when the information is determined to be other than defined information.