JPH03225584A - Time recorder with double printing preventing function - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to cases where the person or another person mistakenly inserts a printed time card into a time recorder again, that is, when the time card is inserted incorrectly. The present invention relates to a time recorder with a function that can prevent double printing.

[Conventional technology]

Conventionally, as a device to prevent double printing caused by incorrect insertion of a time card, a punch is used to punch a hole in each print field after printing is completed, and detect the presence or absence of this punch to determine whether or not printing is possible. The formula and the printed data of each person are recorded in each person's file, and if a time card is inserted incorrectly, this file is read and the verification device 1CPU
There are various data type double printing prevention devices that prevent double printing by determining whether or not printing is possible.

[Problem to be solved by the invention]

However, in the case of the above-mentioned punch type double printing prevention device, the structure requires a punch machine to punch the printing field, a sensor to detect the punch, and a control device for the punch machine and sensor. However, in the case of the above-mentioned data type double printing prevention device, each time a time card is inserted, the printed data is called up from each person's memory file and verified. Since it is necessary to judge whether printing is possible or not, it is necessary to expand the functionality of the verification device, that is, the CPU, to make this judgment, which leads to the complexity (larger size) of the entire control device including the CPU. However, there was a problem in that the cost increased.

Therefore, the technical problem of the present invention is to provide a double printing prevention device for a time recorder which is extremely simple in construction and can be manufactured at low cost.

[Means to solve the problem]

The measures taken in the present invention to solve the above technical problems are as follows.

While the printer is placed in advance at a position in front of the printing field, when a time card is inserted, the feed roller automatically pulls the time card to a predetermined printing stage position, and the printer is moved to the printing field to print. In a time recorder configured to perform this, (1) a sensor is provided above the printer and at a position one column ahead of the printer for reading the presence or absence of printing in the printing column and determining whether or not printing is possible; to install.

(2) The sensor attached to the printer is an optical sensor capable of detecting the presence or absence of printing in the printing field.

(3) The sensor attached to the printer is a magnetic sensor capable of detecting the presence or absence of characters printed using magnetic ink.

[Effect]

The above means works as follows.

■The element (1) above is that, prior to printing by the printer, the sensor checks the print field of the time card to detect the presence or absence of print, and if there is print, it stops printing by blinking and there is no print. Since printing is performed only when the printer is in use, double printing can be completely prevented using an extremely simple device that only requires a sensor to be attached to the printer.

■Element (2) above uses an optical sensor that can be obtained at low cost to detect the shadows of characters printed in the printing field to determine the presence or absence of printing, so 1 judgment is accurate and double To more completely prevent printing.

■Element (3) above is that by detecting characters printed using magnetic ink with a magnetic sensor, 1 judgment can be made more accurately to determine the presence or absence of printing, and double printing can be prevented. do.

As described above, the above-mentioned technical problem can be solved by the above-mentioned means, and the problems of the conventional technology can be solved.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the time recorder with double printing prevention function according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 and FIG. 2 show a time recorder of the present invention.

1 is a side view and a plan view showing a time card printed by this time recorder in relation to each other;
is an electronic time recorder printer, 1a is its head, 2 is a carrier on which printer 1 is mounted, and 3 is motor 3.
A camshaft is rotated by M to move the carrier 2 in the axial direction together with the printer 1, 4 is a printing ribbon cassette, and 5 is a block body to which the above-mentioned members are attached.

Also, 8 is the printing platen, P is the printer head 1
A time card is configured to be inserted freely between a and a platen 8, and 10 indicates a card feeding roller.

The above-described printer 1, the motor 3M for moving the printer 1, the card feed motor IOM for rotating the roller 10, and the clock device 12 for transmitting the standard time signal of the time recorder are constructed using the blocks shown in FIG. As shown in the figure, the motor 3M for moving the printer is connected to a control device 11 configured using a CPU and a ROM (both not shown), that is, a microcomputer, and according to a system program stored in the ROM. , while the printer 1 is always kept on standby (standby just before) at a position in front of the predetermined or selected printing field PA of the time card P,
The card feed motor IOM is configured to rotate the roller 10 and draw the time card P to a predetermined printing stage (the printing stage for the 11th in the drawing) according to the system program stored in the same ROM.

Further, 6 is the diagonally upper right position of the printer 1 using the mounting arm 7, that is, specifically, the distance T that is one column ahead of the printer head 1a to the right, and two steps upward. This sensor is installed at a raised distance, and this sensor 6 is also the control device mentioned above! 11, and is configured to detect whether or not there is any printing in the printing area PA of the time card P that is fed in by the roller 1o.

When the sensor 6 detects that there is a print on the print sPA, the control device 11 stops printing by the printer 1, reverses the card feeding motor IOM, and sends the time card P back. On the other hand, an alarm device 13 such as a lamp, a buzzer, or a sound generator attached to the recorder body is activated to prompt the user to stop printing or reselect the print field.

Note that PB in the figure is the printing field part where the printer head 1a is actually located when the sensor 6 is detecting the printing field PA, and in order to make the detection by the sensor 6 more accurate, The drawing of the time card P by the roller 10 is temporarily stopped at the position where the printer head 1a matches the printing field PB, that is, the position where the sensor 6 matches the actual printing field PA, and after detection, the roller 1o is rotated again. It may also be possible to perform feeding over a distance.

Since the time recorder with double printing prevention function according to the present invention has the configuration described above, when the time card P is inserted,
The roller 10 pulls in the time card P, and the sensor 6 attached to the printer 1 that is on standby immediately detects whether or not there is any printing in the printing area PA that will be printed from now on. If there is no printing, the roller 10 pulls in the time card P. 10, the time card P is continuously advanced by two stages, that is, by the distance, and then the motor 3M rotates the camshaft 3 to direct the printer head 1a toward the printing column PA and move the time card P by one column. minutes, that is, by a distance T to print work data (leaving time in the case shown), and after printing is completed, the roller 10 is reversed and the time card is printed.
send back.

On the other hand, when the sensor 6 detects printing in the printing field PA, the printer 1 does not print and immediately reverses the roller 1o to send the time card P back, and the alarm device 1
3 to prompt the user to stop printing or change the print field to prevent double printing.

The sensor 6 may be an optical sensor that detects the shadow of the characters printed in the printing field PA and determines whether or not there is printing, or
A magnetic sensor is used that detects whether or not characters printed using magnetic ink (ink ribbon) are present in the print field PA, and determines the presence or absence of printing.

〔effect〕

As described above, the time recorder with double printing prevention function according to the present invention can prevent double printing on time cards and make it possible to accurately print and tally work data. In particular, the invention makes it possible to prevent double printing by simply processing the detection signal from the sensor, without using complicated and expensive equipment such as a punch device or a large-capacity verification device to determine whether printing is possible. Because of the structure, the entire device can be manufactured easily and at low cost, and it has the advantage that it can be easily installed and implemented on existing tom recorders, making it very convenient. It is something.

[Brief explanation of drawings]

FIG. 1 is a side view showing the main parts of a time recorder with double printing prevention function and a time card according to the present invention in relation to each other, FIG. 2 is a plan view thereof, and FIG. 3 is an electrical configuration thereof. FIG. 1 is the printer, 1a is the printer head, 3 is the camshaft, 3
M is the motor for moving the printer, 6 is the sensor, 10 is the roller, IOM is the card feed motor, P is the time card, and PA is the print field. Patent applicant Amano Equities

Claims (3)

[Claims] (1) While the printer is placed on standby in advance at a position in front of the printing field, when a time card is inserted, the feed roller automatically pulls the time card to a predetermined printing stage position, and the printer is moved to the printing field. In a time recorder configured to perform printing, there is a sensor located above the printer and one column ahead of the printer for reading the presence or absence of printing in the printing column and determining whether or not printing is possible. A time recorder with double printing prevention function. (2) The time recorder with double printing prevention function according to claim (1), wherein the sensor attached to the printer is an optical sensor capable of detecting the presence or absence of printing in the printing field. (3) The time recorder with double printing prevention function according to claim (1), wherein the sensor attached to the printer is a magnetic sensor capable of detecting the presence or absence of characters printed using magnetic ink.