KR0120584B1 - Driving control method of motor for driving cutter in fax - Google Patents

Abstract

The invention is about a motor drive control method for a cutter driving motor of a facsimile. The control method comprises; the first step(201 or 204) performing a cutting operation by forward-rotating a cutter driving motor(30), and concurrently checking if the cutter reaches at the origin by counting down a counter set by the operating time needed to cut record papers; the second step(211, 205 or 209), if the cutter has not been reached the origin until the counter downs to zero, reverse-rotating the cutter driving motor and counting up the counter till it reaches the operating time needed to cut record papers; and the third step(210 or 211) that, if the cutter has not reached the origin until the counter reaches the preset count in the second step, generates a jam alarm signal to warn outside and cuts off currents into the cutter driving motor.

Description

Drive control method of motor for fax cutter

1 is a drive control method of a conventional cutter driving motor.

2 is a configuration of the motor drive device for driving the cutter to which the present invention is applied,

3 is a drive control method for a cutter driving motor according to the present invention.

* Explanation of symbols for main parts of the drawings

10: central control unit 20: motor drive unit

30: motor R1 ~ R6: resistance

C: Capacitor D1, D2: Diode

SW: switch

The present invention relates to a drive control method of a cutter drive motor of a facsimile, in particular, when the cutter is no longer moving due to jams during cutting of the recording paper, the cutter drive motor is reversed for a predetermined time to recover the cutter to a defective position. When the jam is removed, the facsimile of the facsimile machine which prevents damage to the mechanism part and the cutter which occurs in the process of driving the cutter to the flaw position by hand during the jam processing, and facilitates the jam processing and the resetting of the recording paper A drive control method for a cutter driving motor.

Generally, in a fax machine with a built-in cutter, the received image is recorded on the recording sheet through the printing unit, and then the cutter is operated to cut the recording sheet, and the cut recording sheet is reversed from the leading edge of the recording sheet to the printing unit so that the recording is performed at the next recording. This is performed after each recording surface is cut in the process of continuously receiving the recording paper leading alignment, and when the recording paper is newly replaced or reset after the cutter jam is canceled.

Therefore, when the cutter jam occurs, the edge of the recording paper should be canceled and the cutter returned to the flaw position so as not to disturb the forward and backward movement of the recording paper.

However, in the conventional method of controlling a cutter drive motor of a facsimile machine, the motor is rotated forward so that the cutter cuts the recording paper as shown in FIG. 1, but the cutter does not return to the defective position after a certain time elapses. If not, it is recognized as a jam (102 to 105) and the motor is stopped in that state (106) until the user cancels the jam by notifying the user that the jam has occurred through an alarm sound or a light emitting diode (LED) dot, etc. After waiting (107) the jam was cleared (108) it was supposed to wait for the argument. Therefore, the cutter drive motor is stopped while the cutter is holding the recording paper because there is foreign matter on the recording paper, the recording paper is thick, or the cutter blade is not correctly pinched. Therefore, the user opens the upper cover and removes the side plate to remove the jam. After that, the cutter was forced to reach the flaw position by hand, and then the jam paper was removed by fixing the side plate in the newly set state, and closing the upper cover to close the jam. During the jam removal process, the user drives the cutter with excessive force, thereby deteriorating the degree of damage such as gears, and in severe cases, the position of the cutter is displaced to damage the cutter blade.

Accordingly, the present invention has been made to solve the above problems, if the jam occurs during the cutting of the recording paper, by inverting the motor to return the cutter to the flaw position after the user to remove the jam to facilitate jam removal and fixtures It is an object of the present invention to provide a drive control method of a motor for cutter driving to prevent damage of the motor.

In order to achieve the above object, the present invention, a detection switch for detecting whether the cutter is located at the origin, a central control unit for outputting a drive control command of the cutter motor in accordance with the on / off operation of the detection switch, and In the cutter motor drive control method applied to a cutter motor driving device having a motor driving unit for rotating the cutter motor forward and reverse according to a drive control command of the central controller, the cutting motor is rotated forward to perform a cutting operation. A first step for determining whether the cutter has reached the origin by reducing the count set to the size of the operation time required to cut the recording paper; and if the cutter reaches the origin before the count reaches zero in the first step, the cutter motor To cut off the recording paper if the cutter does not reach the origin until the count reaches zero. A second step of rotating the cutter motor counterclockwise by increasing the count until the required operation time size is reached; stopping the cutter motor when the cutter reaches the origin at the second stage, and cutting the cutter paper to deliver the recording paper. If the cutter does not reach the origin until the count of the required operating time size for the alarm to generate an alarm to notify the outside that the jam has occurred, characterized in that it comprises a third step to cut off the current applied to the cutter motor .

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows a configuration of a cutter motor driving apparatus to which the present invention is applied, and includes a detection switch SW for detecting whether a cutter is located at an origin, and a cutter motor according to an on / off operation of the detection switch SW. And a motor drive IC 20 for rotating the cutter motor forward and reverse in accordance with the drive control command of the central control device 10.

Figure 2 shows the drive control method of the cutter motor according to the present invention.

When the reception of the fax is finished, the output unit prints the received data on the recording paper and outputs the output paper. When one page of the recording paper is output, the cutter is driven in accordance with the rotation of the cutter motor 30 to cut the recording paper.

First, when a recording sheet of one page is output as described above, the central control apparatus 10 outputs a control command to forwardly rotate the cutter motor 30 through the terminal CUTON, and accordingly, the motor driving IC 20 outputs the control command. The driving current is output through the terminal OUT1 to rotate the cutter motor 30 forward to perform a cutting operation (201).

As described above, the cutter motor 30 is rotated forward to perform the cutting operation, and at the same time, the count set to the operation time size T required for cutting the recording paper is reduced (202), and it is determined whether the cutter has reached the origin (203). ).

If the cutter reaches the origin before the count reaches zero, that is, the cam (not shown) installed on the motor shaft rotates and the detection switch SW is turned on, the central controller 10 switches the terminals CUTHON and CUTOFF. By outputting the reset signal through the driving current applied to the cutter motor 30 is cut accordingly the cutter motor 30 is stopped (211).

On the other hand, if the cutter does not reach the origin until the count reaches 0 (204) after the jam (JAM) is generated or abnormal operation is determined to have occurred for a predetermined time (205) after the central control unit 10 A control command is outputted to reversely rotate the cutter motor 30 through the terminal CUTOFF. Accordingly, the motor driving IC 20 outputs a driving current through the output terminal OUT2 to reverse the cutter motor 30 and reaches the count T of the operation time size required to cut the recording paper. The count is increased up to 207 to determine if the cutter is at the origin (208).

If the cutter reaches the right point before the count reaches the count T of the operation time required for cutting the recording paper, the cutting machine motor 211 is stopped, and the cutter motor 30 cuts the recording paper. If the cutter does not reach the origin until the count T of the required operation time size is reached (209), an alarm is issued to notify the outside that the jam has occurred (210) and the cutter motor 30 is applied. The current is completely cut off to prevent overload of the cutter motor (211).

As described above, according to the present invention, when the cutter is not positioned at the home position due to abnormal operation of the cutter, the cutter motor is rotated in reverse to control the cutter at the origin, as well as the cutter motor when jam occurs. It can prevent the motor overload by cutting off the current applied to the motor.

Claims (1)

A detection switch (SW) for detecting whether the cutter is located at the origin, a central control device (10) for outputting a drive control command of the cutter motor (30) according to the on / off operation of the detection switch (SW), and In the cutter motor drive control method applied to a cutter motor drive device having a motor drive unit 20 for forward and reverse rotation of the cutter motor 30 in accordance with a drive control command of the central control device 10, the cutter motor ( A first step (201 to 204) of performing a cutting operation by rotating the counterclockwise and simultaneously reducing the count (T) set to the operation time size required for cutting the recording paper and determining whether the cutter has reached the origin; In the first step, the cutter motor is stopped if the cutter reaches the origin before the count reaches zero, and it is necessary to cut the recording paper if the cutter does not reach the origin until the count reaches zero. A second step (211, 205 to 209) of increasing the count until the last time count T is reached and rotating the cutter motor; when the cutter reaches the origin in the second step, the cutter motor is stopped. A third step of informing the outside that the cutter generates an alarm when the cutter motor does not reach the origin until the cutter motor reaches the count T of the operation time size required to cut the recording paper, and cuts off the current applied to the cutter motor. Cutter motor drive control method of a facsimile apparatus characterized by including (210 to 211).