JPH02256371A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To improve the operability by carrying an original and recording paper while being pressed onto a roller, reading the original and recording information onto the recording paper in this state. CONSTITUTION:When an original detection means detects it that an original 19 is supplied to a roller 1, a control means 6 releases the pressing state of a recording means 2 onto the roller 1 via recording paper 18 and a read means 3 reads the original 19. Thus, when the original 19 is carried, the recording paper 18 is not carried but at a standstill at a prescribed location. Moreover, When no original 19 is detected by an original detection means and recording is to be implemented, the control means 6 presses the recording means 2 onto the roller 1 via the recording paper 18 and the recording means 2 applies recording onto the recording paper 18 in this state. Thus, the original 19 and the recording paper 18 are carried with one roller 1 to attain reading and recording thereby improving the operability.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a facsimile device.

BACKGROUND OF THE INVENTION Conventional facsimile machines exchange information by transmitting/receiving image data over telephone lines. The facsimile machine includes a reading means for optically reading the contents of the document,
A recording means is provided for recording the contents of the document on recording paper based on the received image data.

In order to read the document and record it on recording paper as described above, in conventional facsimile machines, the document is fed to the reading area by a conveyance roller, and the recording paper is pressed by a recording head for recording. The recording medium is supplied to the platen roller, and recording is performed while being held between the platen roller and the recording head. A reading operation and a recording operation are performed by rotationally driving such a conveyance roller and a platen roller, respectively, by a motor.

Problems to be Solved by the Invention In the above-mentioned facsimile apparatus, a conveyance roller and a platen roller, as well as accompanying conveyance paths, are respectively disposed in order to read a document and record it on recording paper, and furthermore, the above-mentioned rollers are It is necessary to provide at least two motors for independent rotational driving.6Therefore, the structure of the facsimile apparatus becomes large and heavy, and there are also problems in that manufacturing costs are high.

The purpose of the present invention is to realize weight reduction and miniaturization of the structure,
An object of the present invention is to provide a facsimile device that can be manufactured at low cost.

Means for Solving the Problems The present invention comprises a roller for conveying an original and recording paper, and a pressing means for pressing the original against the roller, and a reading method for reading the original pressed against the roller by the pressing means. a recording means capable of recording on a recording paper while pressing the recording paper against the roller and releasing the pressed state; and a document detecting that the document is fed to the roller. detecting means, and in response to the output of the document detecting means, when the document is detected,
When the recording means is released from being pressed against the roller through the recording paper and the document is read by the reading means, and the document is not detected by the document detection means and recording should be performed, the recording means A facsimile apparatus is characterized in that it includes a control means for pressing a roller through a recording paper to cause the recording means to perform recording.

According to the present invention, the original is conveyed while being pressed against the roller by the pressing means, and the original in this state is read by the reading means. Further, the recording paper is conveyed by the recording means while being pressed against a roller, and the recording means performs recording on the recording paper in this state.

When the document detecting means detects that the document is supplied to the roller, the control means releases the state in which the recording device is pressed against the roller via the recording paper, and causes the reading device to read the document. Therefore, when a document is conveyed, the recording paper is not conveyed but is stopped at a predetermined position. Further, when the original is not detected by the original detecting means and recording should be performed, the control means presses the recording means against the roller through the recording paper, and in this state, the recording means records on the recording paper. I do.

Since the document and the recording paper can be conveyed with one roller in this way, the number of parts can be reduced and eliminated. Further, when a document is supplied to the facsimile machine, the state in which the recording means is pressed against the roller through the recording paper is automatically released, thereby improving the operability of the facsimile machine.

Embodiment FIG. 1 shows a facsimile machine 2 which is an embodiment of the present invention.
FIG. 1 is a sectional view showing the basic configuration of FIG. A roller 1 having a horizontal axis of rotation is disposed inside a body 22 of a facsimile machine 21, and a recording means 2 and a reading glass 3 are pressed against this roller 1 from opposite directions by springs 4a and 4b. .

The recording means 2 is realized by a thermal head, for example. The recording paper 18 is transferred from the storage means 29 to the recording paper guide 2.
0 and is guided to the upper side of the roller 1. When recording on the recording paper 18, the recording means 2 is pressed against the roller 1, and the reading glass 3 is released from being pressed against the roller 1, so that the recording means 2 can perform recording. By passing the recording paper 18 between the recording means 2 and the roller 1 in this state, the image data received by the facsimile device 21 is recorded. Recording paper 1 on which recording has been completed
8 is discharged from the paper discharge ports 22a and 22b.

The recording means 2 including the spring 4a is fixed to the lid 15, and can be angularly displaced in the direction of the arrow R1, as shown by the two-dot chain line, so that the recording paper 18 can be replenished and the facsimile machine 21 can be maintained. It is constructed so that it can be held in the desired position. Furthermore, a handset 27a including a transmitter and a receiver is provided on the top of the facsimile machine 21.

When reading the contents of the document 19 by the facsimile device 21, the document 19 is guided to the lower side of the roller 1, and the document 19 is placed between the roller 1 and the reading glass 3 pressed against the roller 1.
During this reading operation, the document tray 14 provided on the front side of the facsimile machine 21 is angularly displaced in the direction of arrow R2 to the state shown by the two-dot chain line. In this state, if the original 19 is supplied from the direction of arrow B1, the original 19 is conveyed to the reading area and a reading operation is performed.

By rotating the roller 1 in the direction of arrow R3, the document 19 passes between the roller 1 and the reading glass 3. At this time, light from a light source 10 provided on the opposite side of the reading glass 3 from the roller 1 is irradiated onto the original 19 through the reading glass 3.

The reflected light from the surface of the original 19 is reflected by a reflecting mirror 11a.

11b and llc and guided to the focusing lens 12, the focused light enters the reading means 13. The reading means 13 is constituted by a CCD (charge-coupled device) or the like, and after converting the reflected light into an electrical signal, provides the electrical signal to the signal processing section 17 . Document 19 that has been read
is guided by the document guide 6, goes around the roller 1, and is discharged from the paper discharge ports 22a and 22b in the direction of arrow B2.

FIG. 2 is a perspective view showing the drive mechanism of the roller 1. Near one end 5a of the rotating shaft 5 of the roller 1, a one-way clutch 43 for driving the cam 41 and a one-way clutch 44 for driving the rotating shaft 5 are disposed close to each other. The power of the motor 9, which can rotate in forward and reverse directions, is transmitted to the one-way clutches 43, 44 via gears 45, 46. The motor 9 is realized by a stepping motor or the like.

The power transmission directions of the one-way clutches 43 and 44 are opposite to each other, and when the motor 9 is driven to rotate forward, that is, when the gear 45 is rotated in the direction of arrow R4, the power is transmitted through the one-way clutch 44. Power is transmitted to the shaft 5, and the roller 1
rotates. At this time, the cam 41 is stopped. Further, when the motor 9 is driven in reverse, that is, when the gear 45 is rotated in the direction of arrow R5, power is transmitted to the cam 41 via the one-way clutch 43, and the cam 41 rotates. At this time, the roller 1 is stopped.

3 and 4 are a plan view and a sectional view showing the drive mechanism for the roller 1 and the cam 41. FIG.

Both ends 5a and 5b of the rotating shaft 5 are rotatably provided on side walls 22c and 22d of the body 22, respectively.

The one-way clutch 43 is provided on the outer peripheral surface of a slide bearing 49 through which the rotating shaft 5 is inserted. Gear 47 which is the input end
Power is transmitted from a gear 46 to the output end 48, and a cam 41 is fixed to the output end 48. As described above, when the motor 9 is driven in reverse, power is transmitted to the output end 48, thereby driving the cam 41 to rotate.

The one-way clutch 44 is provided on the circumferential surface of the rotating shaft 5. The power from the gear 46 is transmitted to the gear 50 which is the input end, and the output end 51 is fixed to the rotating shaft 5. As mentioned above, when the motor 9 is driven in normal rotation, the power is transferred to the output end 5.
1, thereby rotationally driving the rotating shaft 5 and the roller 1.

FIG. 5 is a block diagram showing the electrical configuration of the facsimile machine 21. As shown in FIG. The facsimile machine 21 is provided with a line network control section 25 connected to the telephone line 11.

This line network control unit 25 performs line control operations between the telephone line 11 and the facsimile machine 21.
5 includes a handset 27a including a transmitter and a handset;
A telephone section 27 for making telephone calls is connected.

The telephone section 27 is provided with a hook state detection section 27b,
The hook state detection section 27b is connected to the control section 32.

A facsimile communication section 26 is provided between the control section 32 and the line network control section 25. Facsimile communication department 2
6 is a facsimile device 21 via the telephone line 11.
modulates and demodulates the carrier signal transmitted/received by the

The control section 6 also includes an operation section 28 including a dial key and a "start" key, a reading means 13 for optically reading an image of a document 19 loaded in the facsimile device 21 , and a telephone line 11 . A recording means 2 for recording the image data received by the receiver is connected to the recording means 2, respectively.

A document detecting means 31 composed of a microswitch or the like provides a detection signal to the control section 32 when detecting the document 19. Microswitches 33 and 34 respectively provided on the recording means 2 and the reading glass 3 give detection signals to the cam position detection section 35 when pressed by the cam 41. The cam position detection section 35 detects the position of the cam 41 based on detection signals from the microswitches 33 and 34.

The control section 32 controls the motor forward rotation circuit 36, the motor reverse rotation circuit 37, and the switch 38 based on the output from the document detection means 31 or the cam position detection section 35. Control part 3
Based on the control signal from 2, the motor forward rotation circuit 36 outputs a drive signal to rotate the motor 9 in the forward direction, and the motor reverse circuit 37 outputs a drive signal to rotate the motor 9 in the reverse direction. given to. The switch 38 outputs a drive signal from either the motor forward rotation circuit 36 or the motor reverse rotation circuit 37 based on the control signal from the control section 32 . The motor 9 is rotationally driven by a drive signal from the switch 38.

FIG. 6 is a flowchart for explaining the reading operation of the document 19 in the facsimile device 21, and FIG. 7 is a diagram showing the state of the cam 41 during the reading operation. In step a1, it is determined whether or not the original 19 has been detected, and if the original 19 has been detected, step a2
In step a2, the position of the cam 41 is detected, and in step a3, it is determined whether it is in a readable state.

When it is not in a readable state, that is, when the recording means 2 is pressed against the roller 1 via the recording paper 18, as shown in FIG. 7(1), the switch 38 is
Switching to the motor reversing circuit 37 is performed. In step a5, the motor 9 is driven in reverse, that is, the gear 45 is rotated in the direction of the arrow R5, so that the cam 41 is rotated in the direction of the arrow R5.
Rotate it in six directions to make it readable, that is, as shown in Figure 7 (
2), the recording means 2 is separated from the roller 1 by the cam 41. It is determined whether the microswitch 33 is pressed by the cam 41 to determine whether the readable state has been reached. In step a3, if it is already in a readable state, the process advances to step a6.

In step a6, the motor forward rotation circuit 36 is controlled by the switching device 38.
The reading operation of the original 19 is performed in step a7. That is, as shown in FIG. 7(3), only the reading glass 3 is pressed against the roller 1, and the recording means 2 is separated from the roller 1 by the cam 41. In this state, by driving the motor 9 in normal rotation, that is, by rotating the gear 45 in the direction of arrow R4, the roller 1 is driven to rotate in the direction of arrow R3 and the document 19 is fed. The container is conveyed while being compressed by the glass 3 for use.

FIG. 8 is a flowchart for explaining the recording operation in the facsimile device 21, and FIG. 9 is a diagram showing the state of the cam 41 during the recording operation. step b1
Then, it is determined whether or not a facsimile has been received. If the facsimile is received, the process proceeds to step b2. In step b2, the position of the cam 41 is detected, and in step b
In step 3, it is determined whether or not the recording is possible.

When the recording is not possible, that is, when the reading glass 3 is pressed against the roller 1 as shown in FIG. 9(1), the switch 38 switches to the motor reversing circuit 37 in step b4. will be held. In step b5, the motor 9 is driven in reverse, that is, the gear 45 is rotated in the direction of arrow R5, and the cam 41 is rotated in the direction of arrow R6, and the cam 41 is brought into a recordable state, as shown in FIG. 9(2). The reading glass 3 is separated from the roller 1 by the cam 41. Whether or not the recording is possible is determined by whether or not the microswitch 34 is pressed by the cam 41. In step b3,
If it is already in a recordable state, the process advances to step b6.

In step b6, the motor forward rotation circuit 36 is controlled by the switching device 38.
The recording means 2 is cut off and the recording operation is performed in step b7, as shown in FIG. 9(3).
Only the reading glass 3 is pressed against the roller 1 via the recording paper 18, and the reading glass 3 is separated from the roller 1 by the cam 41.

In this state, if the motor 9 is driven in normal rotation, that is, the gear 45 is rotated in the direction of arrow R4, and the roller 1 is rotated in the direction of arrow R3, the recording paper 18 is sandwiched between the recording means 2 and the roller 1. It is conveyed in the direction of arrow B2 in a pressed state.

As described above, according to this embodiment, the cam 41 can release either the pressing state of the recording means 2 against the roller 1 or the pressing state of the reading glass 3 against the roller 1. , the recording paper 18 or the original document 19 can be individually conveyed using only the roller 1. Also, by using one-way clutches 43 and 44, the roller 1
And the cam 41 can be driven only by the motor 9. Therefore, the number of parts can be reduced compared to conventional facsimile machines, and the facsimile machine 21 can be made lighter and smaller in size.
It also becomes possible to manufacture at a lower cost.

Furthermore, when the document 19 is supplied to the facsimile machine 21, the pressing state of the recording means 2 against the roller 1 is automatically released. This eliminates the need to manually release the pressing state of the recording means 2 against the roller 1 using, for example, a switching lever, and the operability of the facsimile device 21 is improved.

In this embodiment, the position of the cam 41 is detected by the conduction/non-conduction of the microswitches 33 and 34.
When the motor 9 is a stepping motor, the cam 41
The position of the cam 41 is detected by assuming that the amount of angular displacement per time is, for example, 90 degrees, determining in advance the number of steps of the motor 9 corresponding to 90 degrees, and angularly displacing the cam 41 by 90 degrees. You can also.

In addition, the rod lens is placed under the reading glass 3 by the roller 1.
A plurality of image sensors may be arranged along the axis of the roller 1, and a line-type image sensor extending along the axis of the roller 1 may read the original image through the rod lens.

Effects of the Invention As described above, according to the present invention, the original and recording paper can be conveyed with one roller, so the number of parts can be reduced. This makes it possible to reduce the weight and size of the facsimile device, and also to manufacture it at low cost.

Further, when a document is supplied to the facsimile machine, the state in which the recording means is pressed against the roller through the recording paper is automatically released, thereby improving the operability of the facsimile machine.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing the basic configuration of a facsimile machine 21 according to an embodiment of the present invention, FIG. 2 is a perspective view showing the drive mechanism of the roller 1, and FIG. 4 is a plan view of the drive mechanism of the roller 1, FIG. 5 is a block diagram showing the electrical configuration of the facsimile device 21, and FIG. 6 is a diagram showing the reading operation of the document 19 in the facsimile device 21. FIG. 7 is a flowchart for explaining the state of the cam 41 during the reading operation, FIG. 8 is a flowchart for explaining the recording operation of the facsimile machine 21, and FIG. 9 is a diagram showing the state of the cam 41 during the recording operation. It is a figure showing a state. DESCRIPTION OF SYMBOLS 1... Roller, 2... Recording means, 3... Reading glass, 9... Motor, 18... Recording paper, 19...
Original, 21...Facsimile device, 41...Cam,
43.44...-Direction clutch agent Patent attorney Number of strokes

Claims (1)

[Scope of Claims] The present invention includes a roller for conveying the original and recording paper, and a pressing means for pressing the original against the roller, and reading means for reading the original pressed against the roller by the pressing means. , a recording device capable of recording on a recording paper while pressing the recording paper against the roller, and releasing the pressed state; and a document detection device that detects that the document is fed to the roller. and when the original is detected in response to the output of the original detection means,
When the state in which the recording means is pressed against the roller through the recording paper is released and the document is read by the reading means, and the document is not detected by the document detecting means and recording should be performed, 1. A facsimile apparatus comprising: a control means for pressing a recording means against a roller via a recording paper to cause the recording means to perform recording.