JPH04280759A - Facsimile device - Google Patents

Abstract

PURPOSE:To provide a facsimile device capable of saving power and performing automatic transmission and polling at a low cost. CONSTITUTION:When a stepping motor 1 is rotated in the direction A, a cam 25 is rotated, and a transmission switching arm 30, an RS arm 37 (cut switching arm 35), and a reception switching arm 33 are shifted. The engagement state of gears is switched to the state corresponding to the transmission or reception mode. A mode switch 29 detects the rotation position of the cam 25, and the mode switching is controlled based on it. When the stepping motor 1 is rotated in the direction B, the rotation is transmitted to a platen roller 4, a separating roller 10, a sensor roller 14 and a cutter block 8 in response to each mode, and a sheet is conveyed and cut.

Description

[Detailed description of the invention]

0001

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

0002

2. Description of the Related Art In a conventional facsimile machine, a transmitting section, a receiving section, and a recording paper cutting section are each provided with separate motors to drive the conveyance of a document in the transmitting section, and to drive the conveyance of recording paper in the receiving section. A device that uses separate motors to drive and cut the recording paper in a recording paper cutting section, and
As described in Japanese Patent No. 4865, there has been a device that is provided with one motor and three one-way clutches to drive the conveyance of a document in a transmitting section and the conveyance of recording paper in a receiving section.

0003

[Problem to be Solved by the Invention] Among the conventional facsimile devices described above, the former device has a transmitting section, a receiving section,
Since separate motors are provided for each of the recording paper cutting sections, there is a problem in that the cost and power consumption of the apparatus increases. In addition, the latter device has a drive mechanism that ejects the original when the receiving operation is performed while the original is set in the transmitter, so there is a problem that automatic sending and polling cannot be performed as a facsimile function. there were.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art described above, and to provide a facsimile device that is low in cost, saves power, and is also capable of automatic transmission and polling. .

[0005]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a first conveying means for conveying continuous recording paper wound into a roll in the sub-scanning direction by a transmitted driving force. , a second conveying means for conveying the document to be transmitted in the sub-scanning direction by the transmitted driving force; and a second conveying means for separating the document one by one by the transmitted driving force;
a separating/supplying means for sequentially supplying the continuous recording paper to the conveying means; a cutting means for cutting the conveyed continuous recording paper by the transmitted driving force; a single motor capable of forward and reverse rotation; a transmission means for transmitting the rotational force of the motor to the first and second conveying means, separation/supply means, and cutting means as the driving force when the motor rotates in the opposite direction; The present invention includes a cam which is rotationally driven by a cam and which switches the transmission path and/or destination of the driving force in the transmission means, and a rotational position detection means which detects the rotational position of the cam.

[0006]

According to the present invention, when the motor rotates in reverse, the cam is rotationally driven to switch the transmission route and destination of the driving force in the transmission means. At this time, the switching state differs depending on the rotational position of the cam.

For example, when the cam is in the "transmission mode", the driving force is transmitted in the transmission means only to the second conveyance means and the separation/supply means, and the driving force is transmitted to the first conveyance means and the separation/supply means. The switching state is such that it is not transmitted to the cutting means. Therefore, during the transmission operation, when the motor rotates forward, only the second conveyance means and the separation/supply means are driven.

Further, when the cam is in the "receiving mode" position, the driving force is transmitted to the first transmission means.
The switching state is such that the signal is transmitted only to the second conveying means, and not to the second conveying means, the separating/supplying means, and the cutting means. Therefore, during the receiving operation, when the motor rotates forward, only the first conveyance means is driven.

Further, when the cam is in the "cutting mode" position, the driving force is transmitted only to the cutting means in the transmission means, and the driving force is transmitted to the first and second conveyance means and the separation/supply means. is in a switching state such that it is not transmitted. Therefore, during the cutting operation, when the motor rotates forward, only the cutting means is driven.

Furthermore, when the cam is in the "copy mode" position, the driving force is transmitted in the transmission means only to the first and second conveyance means and the separation/supply means, and the driving force is transmitted to the cutting means. is in a switching state such that it is not transmitted. Therefore, during a copying operation, when the motor rotates forward, only the first and second conveyance means and separation/supply means are driven.

Further, when the cam is in the "heading mode", the driving force is transmitted only to the first conveying means in the transmitting means, and the driving force is transmitted to the second conveying means and the separating/supplying means. and the switching state is such that the information is not transmitted to the cutting means, and the transmission route to the first conveying means is different from that in the "receiving mode". Therefore, in the beginning operation, when the motor rotates forward, only the first conveyance means is driven.

[0012] Therefore, the transmitter (
Since each drive can be performed in the second conveyance means, separation/supply means, etc.), the receiving section (the first conveyance means, etc.), and the recording paper cutting section (cutting means, etc.), it is possible to achieve low cost and Can save power. Furthermore, even if a receiving operation is performed while a document is set in the transmitter, the document will not be ejected, so automatic transmission and polling can be performed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a facsimile apparatus as an embodiment of the present invention, and FIG. 2 is a side view of the facsimile apparatus of FIG.

In FIG. 1, reference numeral 1 denotes a stepping motor that can rotate in both forward and reverse directions.A gear 2 is fixed to a rotating shaft, and the stepping motor 1 is fixed to a chassis 3. A platen roller 4 has a gear 5 fixed to one end thereof, and conveys the roll recording paper 6 in the sub-scanning direction. A thermal head 7 has a heating resistor (not shown) arranged in the main scanning direction, and is pressed against the platen roller 4 by a spring (not shown) to print on the roll recording paper 6. Reference numeral 8 denotes a cutter block equipped with a cutting blade, which is driven by the rotation of a gear 9 to cut the roll recording paper 6.

Reference numeral 10 denotes a separation roller, with a gear 11 at one end and a one-way clutch 1 provided at its boss.
When the gear 11 rotates in the C direction, the separating roller 10 and the separating pad 12 separate and feed the documents 13 one by one. A sensor roller 14 has a gear 15 fixed to one end thereof, and conveys the original 13 in the sub-scanning direction. Reference numeral 16 denotes a close-contact line sensor that reads character information on the document 13 and converts it into an electrical signal.

Next, the drive transmission system will be explained. The gear 2 fixed to the rotating shaft of the stepping motor 1 rotates through gears 17, 18, 19, and 19'.
It is transmitted to the gear 15 and rotationally drives the sensor roller 14,
The separation roller 10 is rotationally driven by the rotation of the gear 11 via the gear 15, the gear 20, and the gear 41.

A gear 2 is used to drive the rotation of the platen roller 4.
A path for transmitting the rotation of
There are two transmission paths, one through 3 to the gear 5. The cutter block 8 is driven by gears 18' and 2.
2. This is obtained by rotating the gear 9 via the gears 23 and 24.

Here, gear 17, gear 17', gear 18
, gear 18', gear 20, gear 22, gear 41, gear 2
4 and the gears 9 are rotatable by pins fixed to the chassis 3, respectively.

A cam 25 has a groove (not shown), is rotatable by a pin 26 fixed to the chassis 3, and is rotationally driven via a gear 18, a gear 27, and a gear 28. 29 operates only when the cam 25 is rotated by the mode switch, and detects the rotational position of the cam 25.

30 is a transmission switching arm, which is connected to gear 19.
and the pin that is the center of rotation of gear 19' is fixed,
It is guided by the groove of the cam 25 and moves around the pin 31, which is the rotation center of the gear 18, so that the gear 19' and the gear 15
Switches between transmitting rotation and not transmitting rotation.

The gear 27 and the idler arm 32 are connected by a pin 39 fixed to the chassis 3, and the gear 28 is connected by a pin 39 fixed to the chassis 3.
The pins are fixed to the idler arm 32 and are rotatable. Here, the gear 28 has a friction clutch (not shown), and together with the idler arm 32 constitutes a swinging mechanism. That is, when the gear 18 rotates,
When the gear 27 rotates, the gear 28 and the idler arm 32 rotate together around the pin 39.

That is, when the gear 2 fixed to the rotating shaft of the stepping motor 1 rotates in the direction A, the gear 2
8 rotates together with the idler arm 32 and meshes with the gear portion of the cam 25. Conversely, when gear 2 rotates in direction B, gear 28 rotates together with idler arm 32,
It separates from the gear part of the cam 25 and stops at a predetermined position. Therefore, the cam 25 is rotationally driven only when the gear 2 rotates in the A direction.

33 is a reception switching arm, which is connected to the gear 21.
The pin that is the center of rotation of the gear 18' is fixed, and is guided by the groove of the cam 25, and moves around the pin 34 that is the center of rotation of the gear 18'. Performs a switching operation.

35 is a cutting switching arm, which is connected to the gear 23.
A pin 35a that engages with the groove 37a of the RS arm 37 is fixed, and moves around a pin 36 fixed to the chassis 3 as the center of rotation. RS arm 3
7 is guided by the groove of the cam 25 and moves around a pin 38 fixed to the chassis 3 as the center of rotation. At this time, the cutting switching arm 35 is connected to the pin 35 by the engagement between the groove 37a of the RS arm 37 and the pin 35a of the cutting switching arm 35.
By moving around the center of rotation, a switching operation is performed to determine whether or not to transmit the rotation between gear 23, gear 5, and gear 24.

Next, each operating state will be explained using FIGS. 3 to 7. FIG. 3 is a side view showing the operating state of the facsimile apparatus of FIG. 1 in a transmission mode. In Figure 3,
The transmission switching arm 30 is located at a position where gear 19' and gear 15 mesh, and the reception switching arm 33 is located at a position where gear 21 and gear 5 do not mesh.
are restricted by cams 25 to positions where the gears 23, 24, and 5 do not mesh with each other. This state is called "transmission mode."

FIG. 4 is a side view showing the operating state of the facsimile apparatus of FIG. 1 in the receiving mode. In FIG. 4, the transmission switching arm 30 has a gear 19' and a gear 15.
The reception switching arm 33 is regulated by the cam 25 to a position where the gears 21 and 5 do not mesh, and the cutting switching arm 35 is regulated by the cam 25 to a position where the gears 23, 24, and 5 do not mesh. There is. This state is called "reception mode."

FIG. 5 is a side view showing the operating state of the facsimile apparatus of FIG. 1 in the cueing mode. In FIG. 5, the transmission switching arm 30 has gear 19' and gear 1.
5 does not engage, the reception switching arm 33 is
The cutting switching arm 35 is restricted by the cam 25 to a position where the gear 21 and the gear 5 do not mesh, and the cutting switching arm 35 is restricted to a position where the gear 23 and the gear 5 mesh. This state is
It's called "head start mode".

FIG. 6 is a side view showing the operating state of the facsimile machine of FIG. 1 in copy mode. In FIG. 6, the transmission switching arm 30 has gear 19' and gear 1.
The receiving switching arm 33 is in the position where the gear 21 and the gear 5 are engaged, and the cutting switching arm 33 is in the position where the gear 21 and the gear 5 are in meshing.
5 is restricted by a cam 25 to a position where the gear 23, the gear 24, and the gear 5 do not mesh with each other. This state is called "copy mode."

FIG. 7 is a side view showing the operating state of the facsimile machine of FIG. 1 in the cutting mode. In FIG. 7, the transmission switching arm 30 has a gear 19' and a gear 15.
The receiving switching arm 33 is restricted by the cam 25 to a position where the gears 21 and 5 do not mesh, and the cutting switching arm 35 is restricted by the cam 25 to a position where the gears 23 and 24 do not mesh. This state is
This is called "disconnection mode."

As explained above using FIGS. 3 to 7, there are five mode states corresponding to the rotational position of the cam 25, and the mode switch 29 detects the rotational position of the cam 25. By doing so, mode switching is controlled based on the detection result. These modes are arranged in the following order: "Send mode", "Start mode", "Copy mode", "Receive mode", and "Disconnect mode".
The standby state (initialization state) is set to "transmission mode".

The operation of this embodiment will be explained below. First, the transmission operation will be explained. In FIG. 3, when the original 13 passes through the original detection member 40 after setting the original 13, the stepping motor 1 rotates in the B direction, and when the rotation is transmitted to the gear 11, the separation roller 10 rotates in the C direction. Then, the document 13 is separated from other documents in combination with the separation pad 12. After the leading edge of the document 13 passes the document detection member 43, the stepping motor 1 stops.

Next, the stepping motor 1 is rotated in the B direction again in response to the transmission signal, and the sensor roller 14 is driven to transport the original 13 in the sub-scanning direction and the contact type line sensor 16.
The document is read and scanned by the computer, and the document is sent. Here, the circumferential speed of the separation roller 10 due to the rotation of the gear 11 is set to be slower than the circumferential speed of the sensor roller 14. Therefore, when the document 13 is held between the sensor roller 14 and the contact type line sensor 16 and the conveyance speed of the document 13 becomes equal to the circumferential speed of the sensor roller 14, the separation roller 10 becomes driven by the action of the one-way clutch 11a of the gear 11. , the peripheral speed of the separation roller 10 is equal to the transport speed of the document 13, that is, the peripheral speed of the sensor roller 14. The above transmission operation is repeated until the document detecting member 40 is in the document non-detecting state.

Next, the reception operation will be explained. In FIG. 3, upon receiving a facsimile reception signal, the stepping motor 1 rotates in the direction A, and the idler arm 3
2, the gear 28 meshes with the gear part of the cam 25, rotates the cam 25, and indicates that the rotational position of the cam 25 has changed from the "transmission mode" position to the "heading mode" position. When the switch 29 detects this, the stepping motor 1 stops.

Next, in FIG. 5, when the stepping motor 1 rotates in the B direction, the gear 5 rotates in the E direction, and the platen roller 4 moves the roll recording paper 6 in the H direction to detect the presence or absence of the roll recording paper 6. The member 42 is transported from the detected state to the position where it is determined to be in the non-detected state. After this, the stepping motor 1 rotates in the A direction, and when the mode switch 29 detects that the rotational position of the cam 25 changes from the "heading mode" position to the "receiving mode" position, the stepping motor 1 stops. do.

In FIG. 4, when the stepping motor 1 rotates again in the B direction, the platen roller 4 rotates in the F direction, transporting the roll recording paper 6 in the G direction, and the facsimile reception information is rolled by the thermal head 7. is written on recording paper 6. When the writing of the facsimile reception information is completed, the stepping motor 1 rotates in the A direction, and when the mode switch 29 detects that the rotational position of the cam 25 has changed from the "reception mode" position to the "cutting mode" position, Stepping motor 1 stops.

Next, in FIG. 7, when the stepping motor 1 rotates in the direction B, the cutter block 8 is driven to cut the roll recording paper 6. Here, when receiving signals are sequentially received, the above receiving operation is repeated, and when the receiving signals are completed, the stepping motor 1 rotates in the direction A, and the rotational position of the cam 25 changes from the "cutting mode" position to the "transmission mode". When the mode switch 29 detects that the stepping motor 1 is in the position, the stepping motor 1 stops.

Finally, the copy operation will be explained. The rotational position of the cam 25 when setting the original 13 is shown in FIG.
When the document 13 passes the document detection member 40, the stepping motor 1 is in the "reception mode" position shown in FIG.
rotates in direction B, and when the rotation is transmitted to gear 11, separation roller 10 rotates in direction C, and in combination with separation pad 12 separates document 13 from other documents. After the leading edge of the document 13 passes the document detection member 43, the stepping motor 1 stops.

Next, the stepping motor 1 rotates in the A direction in response to the copy start signal, and the mode switch 29 indicates that the rotational position of the cam 25 has changed from the "transmission mode" position to the "heading mode" position. When detected, the stepping motor 1 stops.

Next, in FIG. 5, when the stepping motor 1 rotates in the B direction, the gear 5 rotates in the E direction, and the platen roller 4 moves the roll recording paper 6 in the H direction. 42 is transported from the detected state to the position where it is determined to be the non-detected state. After that, the stepping motor 1 rotates in the A direction, and when the mode switch 29 detects that the rotational position of the cam 25 has changed from the "start mode" position to the "copy mode" position, the stepping motor 1 stops. do.

Next, in FIG. 6, when the stepping motor 1 rotates in the direction B, the scanning of the original 13 is performed in the same manner as the sending operation, and the recording on the roll recording paper 6 is performed in the same manner as the receiving operation. be exposed. When reading and scanning of the original 13 is completed, the stepping motor 1 rotates in the A direction, and the rotational position of the cam 25 changes from the "copy mode" position to the "copy mode" position.
Check that the mode switch 29 is in the “receive mode” position.
When detected, the stepping motor 1 stops.

Next, in FIG. 4, when the stepping motor 1 rotates again in the B direction, the platen roller 4 rotates in the F direction and conveys the roll recording paper 6 by a certain length in the G direction. After this, the stepping motor 1 rotates in the A direction, and the rotational position of the cam 25 changes from the "reception mode" position to the "reception mode" position.
Press the mode switch 29 to confirm that it is in the “cutting mode” position.
When detected, the stepping motor 1 stops.

Next, in FIG. 7, when the stepping motor 1 rotates in the direction B, the cutter block 8 is driven and cuts the roll recording paper 6. After this, the stepping motor 1 rotates in the A direction, and when the mode switch 29 detects that the rotational position of the cam 25 has changed from the "cutting mode" position to the "transmission mode" position, the stepping motor 1 stops. . However, if there are multiple manuscripts 13,
Repeat the above copy operation.

[0043]

[Effects of the Invention] As explained above, according to the present invention,
Since each of the transmitting section, receiving section, recording paper cutting section, etc. can be driven by a single motor, cost and power saving can be achieved. Furthermore, even if a receiving operation is performed while a document is set in the transmitter, the document will not be ejected, so automatic transmission and polling can be performed.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing a facsimile apparatus as an embodiment of the present invention.

FIG. 2 is a side view of the facsimile machine of FIG. 1;

FIG. 3 is a side view showing the operating state of the facsimile apparatus of FIG. 1 in a transmission mode.

FIG. 4 is a side view showing the operating state of the facsimile machine of FIG. 1 in a reception mode.

FIG. 5 is a side view showing the operating state of the facsimile machine of FIG. 1 in a cue mode.

FIG. 6 is a side view showing the operating state of the facsimile machine of FIG. 1 in a copy mode.

7 is a side view showing the operating state of the facsimile machine of FIG. 1 in a cutting mode; FIG.

[Explanation of symbols]

1... Stepping motor, 4... Platen roller, 6... Roll recording paper, 7... Thermal head, 8... Cutter block, 10... Separation roller, 12... Separation pad, 13... Document,
14...Sensor roller, 16...Contact type line sensor, 2
5...Cam, 29...Mode switch.

Claims (3)

[Claims] 1. A first conveying means for conveying continuous recording paper wound into a roll in the sub-scanning direction by a transmitted driving force, and a first conveying means for conveying a document to be transmitted in the sub-scanning direction by the transmitted driving force. a single motor that can rotate in both forward and reverse directions; and when the motor rotates forward, the rotational force of the motor is transmitted to the first and second conveying means as the driving force. a transmission means, a cam that is rotationally driven by the rotational force of the motor when the motor rotates in reverse and switches the transmission path and/or destination of the driving force in the transmission means, and rotation that detects the rotational position of the cam. A facsimile device comprising: a position detection means. 2. The facsimile apparatus according to claim 1, further comprising a separation/supply means for separating the original document one by one by a transmitted driving force and sequentially supplying the document to the second conveyance means; cutting means for cutting the continuous recording paper using the transmitted driving force, and the transmitting means transmits the rotational force of the motor to the first and second conveying means when the motor rotates forward. In addition, the above-mentioned separation/
A facsimile apparatus characterized in that the driving force is also transmitted to a supplying means and a cutting means. 3. The facsimile apparatus according to claim 1, wherein the rotational position detection means comprises a rotary type switch that rotates in conjunction with the cam.