JPH05178490A - Facsimile device - Google Patents

Abstract

PURPOSE:To perform a transmitting function and a receiving function through a single roller so as to save space by forming a transmission system running route and a receiving system running route in a spot where the running routes are positioned facing each other with a single roller nipped therebetween and arranging a power transmission releasing mechanism, by which transmission of a power from a roller is released, to the receiving system running route. CONSTITUTION:A transmission system running route 29 and a receiving system running route 30 are formed in a spot where the running routes are positioned facing each other with a single roller 14 nipped therebetween, and a cam 19 by which transmission of a power from the roller 14 is released is arranged along by the receiving system running route 30 side. During transmission, the cam 19 presses a printing cam support 20 to separate the roller 14 and a printing part 17 from each other, and a roll-form recording sheet 18 is prevented from running. Further, during receipt and during copying, the printing cam support 20 is not pressed by the cam 19, the printing part 17 is brought into pressure contact with the roller 14, and the roll-form recording sheet 18 is run between the roller 14 and the printing part 17. This constitution can provide a transmission function and a receiving function through the single roller 14, save space, reduce the number of parts, and reduce cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine, and more particularly to a facsimile machine having a transmitting mechanism and a receiving mechanism.

[0002]

2. Description of the Related Art A schematic cross section of a conventional facsimile apparatus of this type is shown in FIG. In the figure, numeral 38 indicates a roll-shaped recording paper, a reading roller 47 is arranged on the left side of the roll-shaped recording paper 38, and a printing roller 48 is arranged on the right side of the roll-shaped recording paper 38. ing. Further, the reading unit 31 is arranged above the reading roller 47,
A transmission system traveling path 49 is formed between the reading unit 31 and the reading roller 47. This transmission system traveling path 49 is the document entrance 3 formed on the left side of the facsimile main body.
2 to the document exit 3 formed above the roll-shaped recording paper
It is formed over 3.

On the other hand, the printing unit 3 is provided above the printing roller 48.
7 is provided, and a receiving system traveling path 50 is formed between the printing roller 48 and the printing section 37. The receiving system traveling path 50 is formed from the recording paper inlet 36 to the recording paper outlet 35 so that the rolled recording paper 38 can travel.

In the facsimile apparatus configured as described above, at the time of transmission, when a document is inserted into the document entrance 32, the content of the document is read by the reading section 31, and the document is read by the reading roller 47 to the transmission system traveling path 49. And is ejected from the document outlet 33. Further, at the time of reception, the roll-shaped recording paper 38 is made to travel to the printing unit 37 via the recording paper inlet 36, the received contents are printed in the printing unit 37, and the recording paper is received by the printing roller 48. The recording sheet is made to travel along the system traveling path 49 and is output from the recording paper outlet 35. Further, in the case of copying, when a document is inserted into the document inlet 32, the content of the document is read by the reading unit 31, the document is made to travel along the transmission system traveling path 49 by the reading roller 47, and is discharged from the document outlet 33. At the same time, the roll-shaped recording paper 38 is made to travel to the printing unit 37 via the recording paper inlet 36, the read content is printed in the printing unit 37, and the recording paper is sent by the printing roller 48 to the receiving system running path. The recording sheet is made to travel 49 and discharged from the recording paper outlet 35.

[0005]

However, in the above-mentioned facsimile apparatus, the reading roller 47 for feeding the original and the printing roller 48 for feeding the recording paper.
And two rollers are provided, and at least one motor is required for each roller. There is also a facsimile machine in which two rollers, a reading roller 47 and a printing roller 48, are driven by a single motor, but a complicated power transmission mechanism is required. Therefore,
In these conventional facsimile machines, the transmission system mechanism and the reception system mechanism each require an independent space, the depth L shown in FIG. 8 becomes large, and there is a problem that there is a limit to downsizing.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a facsimile apparatus capable of saving space.

[0007]

In order to achieve the above object, a facsimile machine according to the present invention is a facsimile machine provided with a transmission mechanism and a reception mechanism, and a transmission system travels to a position facing each other with one roller interposed therebetween. A path and a receiving system traveling path are formed, and a power transmission canceling mechanism for canceling power transmission from the roller is additionally provided at least on the receiving system traveling path side.

[0008]

According to the above construction, it is possible to perform the transmitting function and the receiving function by one roller, and it is possible to save space.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a facsimile apparatus according to the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view schematically showing a facsimile apparatus according to an embodiment. Reference numeral 14 in the drawing denotes a roller. The reading unit 11 is arranged above the roller 14 and the printing unit 17 is arranged below the roller 14. A pressure bonding device 21 is attached to each of the reading unit 11 and the printing unit 17. A transmission system traveling path 29 is formed between the reading unit 11 and the roller 14, and the transmission system traveling path 29 extends from the document inlet 12 on the left side of the facsimile apparatus body to the document outlet 13 on the right side of the facsimile apparatus body. The document is formed so that it can run.
On the other hand, a roll-shaped recording paper 18 is arranged on the lower right side of the facsimile apparatus main body. A receiving system traveling path 30 is formed between the printing unit 17 and the roller 14, and in the receiving system traveling path 30, the roll-shaped recording paper 18 travels through the recording paper inlet 16 to the recording paper outlet 15. Is formed.

Next, the change in the engagement state between the roller 14 and the printing portion 17 will be described with reference to FIGS. As shown in FIGS. 2 to 5, a printing portion cam receiver 20 is formed in the printing portion 17, and a cam 19 that engages with the printing portion cam receiver 20 is arranged above the printing portion 17. As shown in FIGS. 2 and 3, when it is not necessary to supply the roll-shaped recording paper 18, that is, at the time of transmission, the cam 19 is in the vertical state and presses the print portion cam receiver 20, and as a result, the roller is received. 14 and the printing unit 17 are separated from each other so that the roll-shaped recording paper 18 does not run. On the contrary, when it is necessary to supply the roll-shaped recording paper 18, that is, at the time of receiving and copying, the cam 19 is in the horizontal state as shown in FIGS. As a result, the printing unit 17 presses against the roller 14 without pressing the sheet, and the roll-shaped recording paper 18 travels between the roller 14 and the printing unit 17.

FIGS. 6 and 7 are schematic sectional views showing the power transmission mechanism when the roller 14 is driven and the cam 19 is driven. Reference numeral 22 in the drawing denotes a motor gear, and the motor gear 2
The intermediate gear 23 is disposed at a position where it engages with the gear 2. A planetary gear 25 is in mesh with the intermediate gear 23, a roller drive gear 26 is provided above the planetary gear 25, and a cam drive gear 24 is provided below the planetary gear 25.
Although not shown, the roller drive gear 26 transmits rotation to the roller 14 via a plurality of gears. Similarly, the cam drive gear 24 also transfers the rotation to the cam 19 via a plurality of gears. It is designed to transmit rotation.
The cam drive gear 24 is equipped with a reverse rotation prevention function.

When transmitting a document in the facsimile apparatus having the above-mentioned structure, when the document is inserted into the document entrance 12, the document is made to travel in the transmission system traveling path 29,
The document content is read by the reading unit 11. After the content of the document is read, the document is further traveled on the transmission system travel path 29 and is discharged from the document exit 13. At this time, since it is not necessary to supply the roll-shaped recording paper 18, as shown in FIGS.
To press. Therefore, the crimping device 21 of the printing unit 17 contracts, the printing unit 17 and the roller 14 are separated from each other, and the width of the receiving system traveling path 30 is widened. The operation of the cam 19 at this time is performed as follows. First, in the transmission mode, as shown in FIG. 7, the motor gear 22 rotated by a motor (not shown) is rotated counterclockwise, and the rotation of the motor gear 22 rotates the intermediate gear 23 clockwise. The planetary gear 25 rotates around the intermediate gear 23 as the intermediate gear 23 rotates, and eventually engages with the cam drive gear 24. The planetary gear 25 rotates counterclockwise,
The cam drive gear 24 rotates clockwise. Then, the rotation of the cam drive gear 24 is transmitted to the cam 19, the cam 19 is positioned in the vertical state shown in FIG. 3, and the width of the receiving system traveling path 30 is widened so that the rolled recording paper 18 is not traveled. When the operation of the cam 19 is completed, the motor gear 22 rotated by a motor (not shown) is then rotated clockwise by the control of the microcomputer or the like, and the intermediate gear 23 is rotated by the rotation of the motor gear 22. Rotates counterclockwise. As the planetary gear 25 rotates, the planetary gear 25 rotates counterclockwise around the intermediate gear 23, and eventually the intermediate gear 2
3, the planetary gear 25 rotates clockwise, and the roller drive gear 26 rotates counterclockwise. The rotation of the roller driving gear 26 is transmitted to the roller 14 to rotate, and the content of the document is read by the reading unit 1.
Read with 1 and send.

On the other hand, at the time of reception, the roll-shaped recording paper 18 is made to run through the recording paper inlet 16 and the printing contents are printed in the printing unit 17. After the received contents are printed, the rolled recording paper 18 is ejected from the recording paper outlet 15. At this time, the cam 19 is, as shown in FIGS. 4 and 5,
The reception mode is set to the horizontal state, the cam 19 does not press the print cam receiver 20, and the press unit 21 presses the printing unit 17 against the roller 14. Cam 1 at this time
The operation of 9 is performed as follows. As shown in FIG. 6, in the reception mode, the motor gear 22 rotated by the motor (not shown) is rotated clockwise,
The rotation of the motor gear 22 causes the intermediate gear 23 to rotate counterclockwise. The planetary gear 25 rotates counterclockwise around the intermediate gear 23 as the intermediate gear 23 rotates, and eventually engages with the roller drive gear 26. The planetary gear 25 rotates clockwise, and the roller drive gear 26 rotates. Rotates counterclockwise. The rotation of the roller driving gear 26 causes the roller 1 to rotate.
4 is rotated and rotated, and the printing unit 17 prints the received contents on the roll-shaped recording paper 18.

At this time, the roller 14 and the reading unit 11 are always in pressure contact with each other. Therefore, although not shown, the cam 19 is also provided on the side of the reading unit 11 so that the reading unit 11 is not pressed against the roller 14 when the document does not travel along the transmission system traveling path 29, thereby rotating the roller 14. It is possible to prevent the reading unit 11 from being worn out and to prolong the life of the parts.

Further, in the case of copying, when the copy mode is set and the original is put in the original entrance 12, the original is made to run and at the same time the roll recording paper 18 side is made to run and read by the reading section 11. The manuscript content is printed part 1
7 is printed on the roll recording paper 18 side. The document is discharged from the document outlet 13 and the roll-shaped recording paper 18 is discharged from the recording paper outlet 15. At this time, the cam 19 is not driven from the state shown in FIG. 5 like the reception, and both the original and the roll-shaped recording paper 18 are made to run by the rotation of the roller 14.

As described above, in the facsimile apparatus configured as described above, one roller 14
Since it also serves as a transmitting mechanism and a receiving mechanism, space saving can be achieved. In addition, it is possible to reduce the number of parts, and it is possible to significantly reduce the cost.

Further, since the cam 19 is provided, in the case of transmission which does not require supply of the roll-shaped recording paper 18,
The original can be transmitted without causing abrasion of the printing unit 17.

[0019]

As described in detail above, in the facsimile apparatus according to the present invention, in the facsimile apparatus having the transmitting mechanism and the receiving mechanism, the transmission system traveling path and Since the receiving system traveling route is formed and the power transmission canceling mechanism for canceling the power transmission from the roller is additionally provided at least on the receiving system traveling route side, the transmission system function and the receiving function are performed by one roller. This can be achieved, and space can be saved. Therefore, not only the number of parts is reduced, but also the cost can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a sectional view schematically showing an embodiment of a facsimile apparatus according to the present invention.

FIG. 2 is a cross-sectional view schematically showing an engagement state between a roller and a printing unit during transmission of the facsimile apparatus according to the embodiment.

FIG. 3 is a cross-sectional view schematically showing an engagement state of a cam and a printing unit cam receiver during transmission of the facsimile apparatus according to the embodiment.

FIG. 4 is a cross-sectional view schematically showing an engagement state between a roller and a printing unit at the time of reception and copying of the facsimile apparatus according to the embodiment.

FIG. 5 is a cross-sectional view schematically showing an engagement state of a cam and a printing unit cam receiver at the time of reception and copying of the facsimile apparatus according to the embodiment.

FIG. 6 is a schematic cross-sectional view showing rotation of gears when driving a cam of the facsimile apparatus according to the embodiment.

FIG. 7 is a schematic cross-sectional view showing the rotation of gears during roller driving of the facsimile apparatus according to the embodiment.

FIG. 8 is a schematic sectional view showing a conventional facsimile apparatus.

[Explanation of symbols]

 11 Reading Section 14 Roller 17 Printing Section 19 Cam (Power Transmission Release Mechanism) 29 Transmission System Travel Path 30 Reception System Travel Path

Claims (1)

[Claims] 1. In a facsimile apparatus having a transmission mechanism and a reception mechanism, a transmission system traveling path and a reception system traveling path are formed at positions facing each other with one roller interposed therebetween, and power transmission from the roller is released. A facsimile apparatus, wherein a power transmission canceling mechanism is attached at least on the side of the receiving system traveling route.