JPS6339264A - Facsimile transmitter-receiver - Google Patents

Abstract

PURPOSE:To reduce power consumption and to miniaturize a device by combining one drive motor with a normally rotary device and varying the rotational direction of the driving motor according to purposes such as transmission, reception and copying. CONSTITUTION:The titled transmitter-receiver is designed for transmission so that the driving motor 1 can rotate in the direction of a full line arrow when an original S6 is detected to be inserted. A roller S2, the normally rotary device S8 and a roller S4 rotate in the directions shown by full line arrows. The original is inserted and a transmission action is executed. In receiving a signal, if the driving motor 1 rotates in the direction of a broken line arrow when a start instruction is given, a roller R2 rotates in the direction of a broken line arrow through a one-way clutch R6, and records the original. In copying, the roller S4 can rotate in the direction of a broken line arrow through the normally rotary device S8 and transmit the original. At that time the roller S2 carries out an idle rotation. On the other hand, the roller R2 rotates the same as in reception, and advances a recording paper. Reading and recording, namely, a copying action can be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a roller drive system for a facsimile transmitting/receiving device, and particularly to a roller drive mechanism in which one drive motor is used for sending, receiving, and copying.

[Conventional technology]

Conventionally, as shown in FIG. 3, the o-ra drive in this type of facsimile machine uses a drive motor dedicated to transmission and a drive motor dedicated to reception.

The conventional device will be explained below with reference to FIG.

In the figure, (81) is a transmission-only drive upper
8sXs*) are document feed rollers, and (S5) is a belt that connects the power of the motor (81) to the rollers (82) and (84).
to communicate. (B 6) Fi original, roller (S)
2) to (84) are carried in the direction of the thick arrow. (S7
) is a document reading sensor that has a reading section at the square mark. (R1) is the reception-only drive motor (R2) is the company's recording paper feed roller (R8) is the belt, and the motor (R
The power of 1) is transmitted to the roller (R2). (R4) is recording paper, and (R5) is a recording head.

If you try to send it now, if it is somehow detected that the VC original (S6) has been inserted just before the roller (S2), the motor (81) will rotate in the direction of the arrow, and the original (S6) will be rotated in the direction of the arrow.
It is assumed that the document is fed in the direction of the arrow shown by Reita, and when the leading edge of the document reaches the reading section of the sensor (S7), the motor (St) is stopped and the document feed is stopped. Then,
When a reading start command is issued, the motor (Sl) rotates in the same direction again, and the information on the document (S6) is sequentially read and transmitted.

During this time, the reception-only motor (R1) is stopped.

On the other hand, in the case of reception, when a recording start command is issued, the reception-only motor (R1) rotates in the direction of the arrow, the recording paper (R4) is sent in the direction of the thick arrow, and the recorder head (R5) moves the recording paper During this time, the transmission-only motor (81) is stopped while information is sequentially recorded on (R4).

In addition, in the case of copying, it is necessary to perform the d collection of the original (S6) and the recording operation at the same time, and in the case of transmission and reception described above, the transmission-only motor (Sl) and reception-only motor ( When R1) rotates in the direction of the arrow and performs recording while reading, it becomes [.

[Problem that the invention seeks to solve]

As described above, three types of operations are required: transmission, reception, and copying, so in the conventional system, a motor dedicated to transmission and a motor dedicated to reception were provided, and the purpose was achieved by a combination of these two motors. However, with this conventional method, not only two motors are required, but also two motor drive paths are required, and in the case of copying, twice as much power is required for the motor, making the circuit complex and the power consumption too high. There were problems such as the space required for listening and cutting became larger.

The present invention has been made to solve these problems, and is a facsimile machine that uses one motor for both sending and receiving functions, can perform copying operations in the same way as before, and is inexpensive, compact, and low-power. The purpose is to obtain a transmitting and receiving device.

[Steps to solve the problem (]

In order to realize transmission and reception with a single motor, the present invention uses the rotation direction of the motor to be used in forward and reverse directions, and by combining a forward rotator, it can be used for both transmission and reception, and it also provides roller drive for copying operations. This is a 6-cho Noh version.

[Effect]

The roller drive in this invention has a positive rotator that rotates in the same direction regardless of the motor rotation direction, and two one-way clutch rotation systems that transmit only the rotational force of the motor in one direction, and the rotation direction of the motor is adjusted according to the purpose VC. By changing the afjh operation of sending, receiving, and copying is realized.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.

In FIG. 1, numeral 88 is a drive motor, and numeral 88 is a forward rotator designed to rotate only in one direction, regardless of the direction of rotation of the motor, the configuration of which is shown in FIG. (S9) is a one-way clutch that rotates the roller (day 2) only in the direction of the solid arrow, and rotates freely in the direction of the dashed arrow; The roller (R11) is rotated only in the direction indicated by t-, and rotates idly in the direction indicated by the solid line arrow.In the figure, explanations of the same parts as in the prior art will be omitted.

In addition, Fig. 8 shows the basic X configuration diagram of the forward rotator used in the present invention. 24 is a pulley with a built-in one-way clutch that rotates only in the direction of the dashed arrow, (to) is a gear, the layer is a pulley, the forehead is a belt, the gear (to), the pulley Each of the shafts is driven by a gear and a pulley with a built-in one-way clutch.Therefore, the shaft (c) can rotate in the same direction regardless of the direction of rotation of the motor 21.

Now consider the case of sending. As in the conventional case, if the drive motor (1) is designed to rotate in the direction of the solid line arrow when the insertion of the original (day 6) is detected, then the roller (S2) The forward rotator (S8) and the roller (S4) each rotate in the direction of the actual arrow, and a document can be inserted and a transmission operation can be performed in exactly the same manner as in the conventional case.

At this time, the roller (R2) is not rotated by the clutch (R6).

Next, considering the case of reception, when a recording start command is issued as in the conventional case, if the drive motor +11 is made to rotate in the direction of the dashed arrow, the roller (R$1) will rotate in the direction of the dashed arrow through the one-way clutch (R6). Rotate in the direction of the recording paper (R
4) can be sent and recorded in the same manner as before. During this operation, since the roller (82) fl is stopped by the one-way clutch (89), the document is not inserted and only the receiving operation is executed, 1cfx.

In the case of copying, when a document is detected, the unfolding drive motor +11 rotates in the direction of the solid arrow, feeds the leading edge of the document by the reading section of the document reading sensor as in the conventional case, and then stops once. At this time, the roller (R2) naturally does not rotate, so the recording paper does not move forward at all. Then, when the drive motor is immediately rotated in the direction of the dashed arrow, the roller (84) is rotated in the direction of the dashed arrow via the forward rotator (S8), and the document can be fed. At this time, Laura (S2) carries out an air attack.

On the other hand, the roller (R2) rotates and advances the recording paper in the same way as in the case of reception, and reading and recording can be performed simultaneously, that is, a copying operation can be performed, and the speed is exactly the same as that of the conventional system.

An embodiment of the present invention has been described above, and in this description, a belt was used as a method for transmitting drive between rollers, but a gear, or a combination of a gear and a belt, etc. can also be easily considered.

Further, the rotational direction of the motor is not limited to the direction shown in the drawings, but the directions of the solid line and the broken line may be interchanged, as long as the respective rollers rotate in the direction in which the original and the recording paper advance. Furthermore, the position of the reading section can be arbitrarily determined by changing the number of rollers used, and the number of rollers may also be increased or decreased from this example, or another clutch may be used in place of the one-way clutch. Good things are natural.

〔Effect of the invention〕

As described above, the present invention combines one drive motor and a forward rotation device, changes the rotational direction of the drive motor according to the purpose of transmission, reception, copying, etc., and also changes the reading and recording speed at the time of copying in no way compared to the conventional one. Moreover, the apparatus is inexpensive and has the great effect of reducing cost, reducing weight, space, and power consumption, and making it smaller.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing the drive system of a facsimile machine according to an embodiment of the present invention, and FIG. 2 is a configuration diagram of the forward rotator shown in FIG. 1.
The perspective view shown in FIG. 8 is a configuration diagram showing the drive system of a conventional facsimile machine. In the figure, 111 is a drive motor (8g) (Bill) (84) is a document feed roller, (s
5) is a bell), (eel) is a document, (s'r) is a document reading sensor, (88) is a forward rotator, (S9) is a one-way clutch, (R2) is a recording paper feed roller, (R3) is a Belt, (R4) is recording paper, (R5) is recording head, (
R6) is a one-way clutch. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] a document feed roller that conveys the document to be sent to the reading section;
A facsimile transmitting/receiving device that is equipped with a reading document feed roller that feeds the document conveyed to the reading unit according to its reading speed, and a recording paper feed roller that conveys the received and recorded recording paper, is capable of forward and reverse rotation. a driving motor; a positive rotator that receives rotational power from the driving motor and transmits the rotational driving force in one direction to the reading document feed roller regardless of the rotational direction of the motor; and a positive rotator of the driving motor in the positive direction. A transmitting one-way clutch that transmits the rotational driving force of the drive motor to the document feeding roller, and a receiving one-way clutch that transmits the rotational driving force of the driving motor in the opposite direction to the recording paper feeding roller. Facsimile transmitting and receiving equipment.