JPH05201568A - Facsimile drive device - Google Patents

Abstract

PURPOSE:To provide a facsimile drive device whose cost can be reduced without changing its function by reducing the number of motors. CONSTITUTION:Upon transmittal, a motor 1 is rotated counterclockwise so that the rotation is transmitted to a belt 3, and accordingly, documents are separated by means of a separating roller 23 and a separating plate 24, and are conveyed by conveying rollers 25, 26. Upon receiving, the motor 1 is rotated clockwise so that the rotation is transmitted to the belt 3, and accordingly, a recording paper feed roller 31 is driven so that the recording is made by a thermal head.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile drive device.

[0002]

2. Description of the Related Art In recent years, the demand for inexpensive facsimile driving devices has increased with the spread of facsimile devices. Conventional Facsimile Driving Device FIGS.
Will be described with reference to. As shown in FIGS. 5 and 6, in the transmission reading system, the originals 22 stacked on the original table 21 are separated and transferred one by one by the separating roller 23 and the separating plate 24, and the originals 22 are conveyed by the conveying roller 25. 26, the target glass 27 is conveyed at a predetermined speed in the sub-scanning direction, illuminated by a lamp 28, and read by a coupling element via a mirror 29.

On the other hand, the receiving and recording system is a roll-shaped recording paper 3
While 0 is being conveyed by the platen roller 31, recording is performed by the thermal head 32 that is pressed against the platen roller 31.

As shown in FIG. 7, the drive source connects the separating roller 23 and the recording paper conveying rollers 25 and 26, and a forward / reverse rotatable motor 35 as a first motor for driving them.
The motor pre 36 of the separation roller 23
On-axis pulley 38 and platen roller 31 On-axis pulley 3
It is connected to 9. A one-way clutch 40 serving as a first reversible transmission means is built in the pulley 38 on the shaft of the separation roller 23, and the rotation is transmitted when the motor 35 rotates counterclockwise. ..

Further, the pulley 3 on the platen roller 31 shaft
9 is a one-way clutch 4 as a second irreversible transmission means.
1 is built in, and when the motor 35 rotates clockwise,
It is set to transmit rotation.

On the other hand, the pulley 43 of the motor 42 as the second motor is connected to the conveying rollers 25 and 26 via the pulleys 44 and 45 and the belt 46. Also, 47
Is a sensor.

In the above structure, at the time of transmission, the one-way clutch 4 is driven by the counterclockwise rotation of the motor 35.
Under 0, the separation roller 23 rotates counterclockwise and the separation and transfer of the document 22 stacked on the document table 21 is performed together with the separation plate 24. As a result, the document 22 is conveyed by the transport roller 25.
And the conveying roller 2
The motors 5 and 26 were rotationally driven by the motor 42. Then, the original 22 is added to the conveyance roller 5, and when the front end thereof is detected by the sensor 47, the motor 35 is stopped, and the original 22 is conveyed by the conveyance rollers 25 and 26 at a predetermined speed in the sub-scanning direction. The reading is done. In these transmission operations, the one-way clutch 41 does not rotate the platen roller 31 even if the motor 35 rotates counterclockwise.

On the other hand, at the time of reception, the platen roller 31 is rotationally driven in the clockwise direction by the rotation of the motor 35 in the clockwise direction, and recording is performed by the thermal head 32 while conveying the recording paper 30. At this time, the separation roller 23 does not rotate due to the action of the one-way clutch 40.
In this way, the two motors 35 and 42 perform automatic paper feeding, document transportation, and recording sheet transportation.

[0009]

In such a conventional facsimile driving apparatus, two motors are used to perform three driving operations of automatic paper feeding and original and recording paper conveyance.
There was a problem of high cost.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a facsimile drive device which can reduce the cost.

[0011]

In order to achieve the above-mentioned object, a facsimile driving apparatus of the present invention has an original separation roller having a first irreversible transmission means and an automatically fed original at a predetermined speed in a sub-scanning direction. A document transport roller for transporting to
A recording paper conveyance roller having a second irreversible transmission means, and 1
One forward / reverse rotation motor, a belt that drives the document separation roller and the recording paper transport roller, a gear train that drives the document transport roller, a solenoid that switches the meshing direction of the gear train, and a document can be transported. A one-way clutch that separately stops the rotation of the document separation roller and the recording paper conveyance roller.

[0012]

According to the present invention, the combination of the belt and the gear, the clutch, and the solenoid are driven by one motor capable of rotating in the forward and reverse directions according to the above-described configuration. Therefore, the original separating roller is rotated by the counterclockwise rotation of the motor during transmission. It is possible to drive the document transport rollers, drive the recording paper transport rollers by rotating the same motor in the clockwise direction at the time of reception, and drive all rollers by the forward and reverse rotation of the same motor at the time of copying.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
Will be described with reference to. The same parts as those of the conventional example are designated by the same reference numerals and detailed description thereof will be omitted. As shown in the figure, a forward / reverse rotatable motor 1 is provided with a pulley 2 and is connected by a belt 3 to a pulley 4 on a separating roller 23 axis and a pulley 5 on a platen roller 31 axis.

A one-way clutch 6 as a first irreversible transmission means is built in the pulley 4 on the shaft of the separation roller 23, and the rotation is transmitted when the motor 1 rotates counterclockwise. ing. The pulley 5 on the shaft of the platen roller 31 also has a built-in one-way clutch 7 as a second irreversible transmission means, and is set so that the rotation is transmitted when the motor 1 rotates in the clockwise direction. The motor 1 can drive the motor pulley 2 and the pinion gear 8 at the same time, and the gear 9 and the gear 10 are connected to each other by the shaft fixing frame 11 with the pinion gear 8 interposed therebetween. The pinion gear 8 can rotate forward and backward. Further, the gear 12 on the axis of the roller 26 and the gears 13, 14 and 15 are sequentially connected, and the gear 16 and the roller 2 on the opposite side of the axis of the roller 26 are connected.
The gear 17 on the five axes is connected via a gear 18. When the gear train connected by the member 11 is rotated by the clockwise rotation of the motor 1, the member 11 is fixed by the clutch 19. At this time,
As shown in FIG. 3, when the solenoid 20 is pulled, the stopper is pulled, the fixing is released, and the gear 10 and the gear 15 are set to engage with each other.

In such a structure, at the time of transmission, as shown in FIG. 1, the separation roller 23 under the one-way clutch 6 rotates counterclockwise by the counterclockwise rotation of the motor 1 to rotate the original document. The documents 22 loaded on the table 21 are separated and transferred together with the separation plate 24. As a result, the original 22 is directed toward the transport rollers 25 and 26. Then, the transport roller 25 rotates counterclockwise via the gears 8, 9, 9a by the counterclockwise rotation of the motor,
The carrying roller 26 is a gear 17, 1 on the axis of the carrying roller 25.
Rotate counterclockwise via 8 and 16. In these transmission operations, even if the motor 1 rotates counterclockwise, the platen roller 31 is not rotated by the one-way clutch 7.

On the other hand, at the time of reception, as shown in FIG. 2, the platen roller 31 is driven to rotate clockwise by the clockwise rotation of the motor 1, and recording is performed by the thermal head 32 while conveying the recording paper 30. Done. At this time, the separation roller 23 does not rotate due to the action of the one-way clutch 6. At that time, the gear trains 8, 9 and 10 fixed by the shaft fixing frame 11 rotate clockwise, but the shaft fixing frame 11 is fixed by the clutch 19.

At the time of copying, as shown in FIG. 3, first, the motor 1 rotates counterclockwise. As a result, the original 22 is separated and transported, and the transport rollers 25, 2
Go to 6. Then, when the original 22 is added to the conveying roller 25 and the leading end thereof is detected by the sensor 47, the motor 1 rotates clockwise as shown in FIG. As a result, the pinion gear 8 rotates clockwise, and the gears connected by the member 11 rotate clockwise. At this time, the solenoid 20 is controlled to pull so that the clutch 19
As the gear pulls, the gear 10 and the gear 15 come into mesh with each other. Then, the transport roller 26 rotates counterclockwise via the pinion gear 8 and the gears 10, 15, 14, 13, 12. In the recording paper conveyance, the platen roller 39 is driven to rotate in the clockwise direction by the clockwise rotation of the motor 13, and the thermal head 32 records while conveying the recording paper 30.

[0018]

As is apparent from the above embodiments, according to the present invention, a combination of a belt and a gear, a clutch and a solenoid are used to drive by one motor capable of forward and reverse rotation, and transmission is performed. Sometimes the motor rotates counterclockwise to drive the document separation roller and the document transportation roller, and at the time of reception, the same motor rotates clockwise to drive the recording paper transportation roller, so the number of motors used can be reduced and the cost can be reduced. It is possible to provide a facsimile drive device that can be downsized.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a facsimile driving apparatus according to an embodiment of the present invention during transmission.

FIG. 2 is a perspective view showing a state of the facsimile driving apparatus during reception.

FIG. 3 is a perspective view showing a counterclockwise rotation state of the facsimile driving apparatus during copying.

FIG. 4 is a perspective view showing a clockwise rotation state of the facsimile driving device during copying.

FIG. 5 is a side view showing a schematic configuration of a transmission reading system of a conventional facsimile device.

FIG. 6 is a side view showing a schematic configuration of a reception recording system of the facsimile device.

FIG. 7 is a perspective view showing a schematic configuration of the facsimile drive device.

[Explanation of symbols]

 1 Motor 3 Belt 6, 7 One-way clutch 8-10, 12-18 Gear 20 Solenoid 22 Document 23 Document separation roller 25, 26 Document transport roller 31 Recording paper transport roller

Claims (1)

[Claims] 1. A document separating roller having a first irreversible transmitting means, a document conveying roller for conveying an automatically stopped document in a sub-scanning direction at a predetermined speed, and a recording sheet conveying having a second irreversible transmitting means. A roller, one motor capable of rotating in the forward and reverse directions, a belt for driving the document separating roller and the recording sheet carrying roller, a gear train for driving the document carrying roller, and a solenoid for switching the meshing direction of the gear train. A facsimile drive device comprising a sensor for detecting that a document has arrived at a position where it can be conveyed, and a one-way clutch configured to separately stop the rotation of the document separation roller and the rotation of the recording sheet conveyance roller.