JPH09200428A - Facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure and lower the manufacture cost. SOLUTION: This equipment is provide with a planetary gear mechanism 23 having a sun gear 23a which is coupled with a paper discharge gear 55 fixed to a paper discharge roller 8 and a planetary gear 54 that the sun gear 23a engages, and the planetary gear 54 is so constituted as to selectively engage a paper feed gear 56 fixed to a paper feed roller 5 and an intermediate gear 57 having an untoothed part 57a; and the paper discharge roller 8 is rotated by rotating the sun gear 23a, the planetary gear 54 which moves associatively with the rotation of the sun gear 23a is engaged with the intermediate gear 57 to rotate the paper feed roller 5 by the rotation of the intermediate gear 57, which is rotated by a specific angle to set the untoothed part 57a opposite the planetary gear 54, thereby disengaging the planetary gear 54 and paper feed gear 56 from each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus capable of reliably sending a plurality of originals to a transmission section at a predetermined interval.

[0002]

2. Description of the Related Art Conventionally, an example of a facsimile apparatus is shown in FIG. This is a transmitter 1 and a receiver 2.
And a recording paper cutting unit 3, and the transmission unit 1 includes the paper feed rollers 5 and 5, the feed roller 6, and the transmission side platen roller 7 which are arranged at predetermined intervals along the conveyance direction a of the document G.
And a paper discharge roller 8, an elastic body 9 that comes into contact with each of the paper feed rollers 5 and 5, and a reading device section 10.
Further, the pressing rollers 6a, 8a are pressed against the paper discharge roller 8, and when a plurality of originals G are inserted into the insertion port 11, each roller 5 is detected based on a detection signal from a sensor (not shown) that detects the insertion. 8 to 8 are rotationally driven, and a plurality of originals G fed between the paper feeding rollers 5 and 5 and the elastic body 9 are separated from each other by a slight displacement in the front-back direction along the conveyance direction a, and separated. The document G that has passed between the paper feed rollers 5 and 5 and the elastic body 9 due to the separation action is sandwiched by the feed roller 6 and the pressing roller 6a and fed forward, and read by the transmission side platen roller 7. Device section 1
After being pressed against 0, the information written on the original G is read by the head 10, and then sent out from the take-out port 12 by the discharge roller 8 and the pressing roller 8a.
The information read by the reading device unit 10 is immediately transmitted.

The receiving section 2 has a recording head 13 and a receiving side platen roller 14 that abuts against the recording head 13. The recording head 13 records the received signal on the recording paper P drawn from the roll paper, By rotating the platen roller 14, the recording paper P on which the received signal is recorded
It is designed to be sent to the outside from the delivery port 15 of.

The recording paper cutting section 3 is composed of a cutter 17 fixed to the support shaft 16 and a fixed blade 18 facing the cutter 17 with the recording paper P being sandwiched between the cutter 17 and the cutter 17. By reciprocally rotating the recording paper P by a predetermined angle, the cutter 17 and the fixed blade 18 cut and separate the recording paper P sent from the receiving unit 2.

[0005]

According to the above configuration, the paper feed rollers 5 and 5 are provided to secure the space between the first and second sheets of the plurality of originals G inserted into the insertion port 11. The original G is fed at a slower speed by rotating it at a speed slower than that of the paper discharge roller 8. However, if the original G is fed by the paper discharge roller 8, the paper feed rollers 5 and 5 that come into contact with the original G are kept as they are. Becomes a brake, and the original G cannot be fed smoothly. Therefore, the paper feed rollers 5 and 5 are provided with one-way clutches so as to idle the paper feed rollers 5 and 5, but since the one-way clutch is expensive, the manufacturing cost is high.

In view of the above problems, it is an object of the present invention to provide a facsimile apparatus which has a simple structure and can be manufactured at a low cost.

[0007]

In order to achieve the above object, the invention according to claim 1 provides a paper feed roller for feeding an original document, a reading device section for reading a record of the original document, and an ejection unit for delivering the original document. A transmitter having a paper roller,
Recording paper having a recording head for recording the received signal on the recording paper and a platen roller for delivering the recording paper on which the received signal is recorded, and a cutter for separating the recording paper delivered from the receiving portion In a facsimile apparatus having a cutting unit, the paper feed roller and the paper discharge roller are interlocked with a drive motor to rotate both rollers at substantially the same speed to feed a document, and then drive the paper feed roller. It is characterized in that a planetary gear mechanism that releases the interlocking connection with the motor is provided.

In the above structure, a plurality of originals are inserted into the insertion port, the first original is conveyed to the reading position in the paper feeding mode, and then the transmission mode or the copy mode is switched to the paper feeding mechanism by the planetary gear mechanism. The roller and the discharge roller are rotated at substantially the same speed, the first original is fed, the recording of the original is read by the reading device section, and the interlocking connection between the paper feed roller and the drive motor is released. When the document passes through the paper feed roller, the rotation of the paper feed roller is stopped and the second document is prevented from being fed. After the first document passes through the paper ejection roller, the above operation is repeated again, and 2
Each original document after the first is fed at a predetermined interval, and the recording of each original document is read by the reading device section.

In this case, the paper feed roller and the paper discharge roller are rotated to sequentially feed a plurality of originals into the transmission section, and at the same time,
Since the paper feed roller is temporarily stopped by the planetary gear mechanism to form a predetermined space between the respective originals, it is necessary to provide the paper feed roller with an expensive one-way clutch as in the prior art. No, the production cost can be reduced.

Further, by rotating the paper feed roller and the paper discharge roller at substantially the same speed, a predetermined feed amount can be read until the original is caught in the paper discharge roller. It can be omitted, and the structure can be simplified by the omitted amount, and the manufacturing cost can be reduced.

According to a second aspect of the present invention, the planetary gear mechanism includes a sun gear that is interlockingly connected to a paper ejection gear that is concentrically fixed to a paper ejection roller, and a planetary gear that meshes with the sun gear. The planetary gear is configured so that it can be selectively meshed with a feeding gear that is concentrically fixed to the feeding roller and an intermediate gear that has a toothless portion, and is pressed concentrically with the intermediate gear. A driven gear is meshed with the paper feeding gear, and by rotating the sun gear in the normal direction, the paper discharging roller is rotated via the paper discharging gear and moves in conjunction with the normal rotation of the sun gear. The planetary gear is meshed with the intermediate gear, and the rotation of the intermediate gear causes the paper feed roller to rotate at substantially the same speed as the paper discharge roller via the paper feed gear, and the intermediate gear is rotated by a predetermined angle to cause the gap. By making the teeth face the idler gear, Is characterized by being configured to release the engagement state between the between the gear.

According to the above construction, the document feeding operation can be carried out smoothly and reliably.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a facsimile apparatus according to an embodiment of the present invention. Since it is substantially the same as the conventional example shown in FIG. 15, the same parts are designated by the same reference numerals and the description thereof will be omitted. Reference numeral 20 is a stepping motor (drive motor), and 21 is a receiver.

FIG. 2 shows a cam mechanism 22 for selecting an appropriate one of the paper feeding roller 5, the paper discharging roller 8, the receiving side platen roller 14 and the cutter 17 and interlockingly connecting the stepping motor 20. A state in which a planetary gear mechanism 23 that operates in conjunction with the cam mechanism 22 is attached to a base frame 24 is shown.

As shown in FIGS. 2 to 5, the cam mechanism 22 has a cam gear 27 having a pair of cams 25 and 26.
A sun gear 29 that is arranged near the cam gear 27 and meshes with a drive gear 28 that is rotated by the stepping motor 20 in the directions of arrows b and c; a small gear 29b fixed to the sun gear 29; A pair of swing levers 30 and 31 swingably supported by a support shaft 29a of the sun gear 29,
It has a pair of planetary gears 32 and 33 that are pivotally attached to the respective rocking levers 30 and 31 and mesh with the small gear 29b of the sun gear 29, and a pair of support shafts 35 provided in the vicinity of the gear 27 for cams The cam levers 36 and 37 are swingably supported, and a spring 38 interposed between the cam levers 36 and 37 presses a protrusion 36a formed on one cam lever 36 against the one cam 25 and the other side. The protruding portion 37 a formed on the cam lever 37 is pressed against the other cam 26.

A platen roller driven gear 41, which is interlocked with the receiving platen roller 14 via a gear mechanism 40, and a support of a cutter 17 so as to face one planetary gear 32 that can mesh with the cam gear 27. A driven gear 44 for a cutter, which is interlockingly connected to the shaft 16 via a crank mechanism 42 and a gear mechanism 43, is arranged, and the other planetary gear 3
3, the sun gear 23a of the planetary gear mechanism 23
A first feed / discharge driven gear 47 and a feed / discharge second driven gear 48 meshing with the feed / discharge first driven gear 47 are arranged in an interlocking manner with an intermediate gear 46. Note that FIG.
In the figure, 49 is a cutter operation detection limit switch provided facing the notch surface 43A of the circular cam 43a formed in one gear of the gear mechanism 43, and in FIG. 3, 35a is fixed to the upper end of the support shaft 35. It is a stopper ring for preventing the cam lever from coming off.

As shown in FIG. 3, the one cam lever 36 faces the projection 30a projecting from the tip of the one rocking lever 30, and the front stage 36A for feeding and transmitting, the middle stage for receiving and copying. 36B and a rear stage 36C for cutting are formed, and as shown in FIG. 4A, one cam 25 facing the protrusion 36a of one cam lever 36 has a large diameter portion 25A for feeding and transmitting, Medium diameter part 2 for receiving and copying
5B and a small diameter portion 25C for cutting are formed.

Further, as shown in FIG. 3, a through hole 50 having a substantially long hole is formed in the center portion of the other cam lever 37 so as to be loosely fitted to the support shaft 27a of the cam gear 27, and the cam gear is formed. 27 and the other cam lever 37 do not interfere with each other, and a protrusion 31a is provided at the tip of the other swing lever 31 so that the base frame 2 faces the protrusion 31a.
4 is formed by cutting and raising a stopper 24a,
The other swing lever 31 is configured so as not to move from the substantially vertical state to the one cam lever 36 side. Further, FIG.
As shown in (b), the protrusion 3 of the other cam lever 37.
The other cam 26 facing 7a includes a small diameter portion 26 for feeding.
A, a medium diameter portion 26B for transmitting and copying and a large diameter portion 26C for receiving and cutting are formed.

In the above structure, as shown in FIG. 4A, one of the cams 25 is intermittently rotated at a predetermined interval in the direction of arrow d so that the A and B positions of the large diameter portion 25A are projected on the cam lever 36. By facing 36a, the paper feed and transmission front stage 36A faces the protrusion 30a of the swing lever 30 (see the paper feed mode of FIG. 6 and the transmission mode of FIG. 7).
By making the C and D positions of the medium diameter portion 25B face the protrusion 36a of the cam lever 36, the receiving and copying middle stage 36B faces the protrusion 30a of the swing lever 30 (see FIG. 9).
(See the reception mode of FIG. 11 and the copy mode of FIG. 11), by making the E position of the small diameter portion 25C face the protrusion 36a of the cam lever 36, the rear stage 36C for cutting faces the protrusion 30a of the swing lever 30. (See the cutting mode in FIG. 10).

Further, as shown in FIG. 4B, the other cam 26 is intermittently rotated at a predetermined interval in the direction of arrow d,
Set the F position of the small diameter portion 26A to the protrusion 37a of the cam lever 37.
By allowing the other planetary gear 33 to mesh with the feeding / discharging first driven gear 47 (see the paper feeding mode in FIG. 6), the G and H positions of the intermediate diameter portion 26B are set to the cam lever 37. By facing the protruding portion 37a, the swing lever 31 is pressed by the cam lever 37, and the other planetary gear 33 is allowed to mesh with the second feed / discharge driven gear 48 (the transmission mode and the drawing in FIG. 7). 11), the I and J positions of the large-diameter portion 26C are made to face the protrusions 37a of the cam lever 37, so that the cam lever 3
The rocking lever 31 is pressed by 7 and the other planetary gear 3
3 is prevented from meshing with the feed and discharge first and second driven gears 47 and 48 (see the reception mode in FIG. 9 and the disconnection mode in FIG. 10).

As shown in FIGS. 2 and 5, the planetary gear mechanism 23 includes a small gear 23b fixed to a sun gear 23a.
A swing lever 53 pivotally supported by a support shaft 52 of the sun gear 23a (in the directions of arrows e and f), and a small gear 23b of the sun gear 23a pivotally attached to the swing lever 53. The sun gear 23a has a planetary gear 54 that meshes with it, and the sun gear 23a meshes with a paper discharge gear 55 that is concentrically fixed to the paper discharge roller 8, and the planetary gear 54 is concentrically fixed to the paper feed roller 5. Partial tooth portion 5 spans approximately 130 ° with the feeding gear 56
7a is formed so as to be selectively meshable with the intermediate gear 57, the intermediate gear 57 is rotatably fitted to the support shaft 58, and rotatably fitted to the intermediate gear 57 and the support shaft 58. The driven gear 59 is brought into pressure contact with the spring 60, and the driven gear 59 is meshed with the paper feeding gear 56.

The swing lever 53 is formed in a bifurcated shape and has a pair of protrusions 53a and 53b. Further, the cam 61 integrally formed with the intermediate gear 57 is formed with an engagement recess 61a with which the one protrusion 53a is engaged and an engagement protrusion 61b with which the other protrusion 53b is engaged. . In FIG. 2, reference numeral 62 is a stopper pin for preventing the swing lever 53 from rotating too much, and 52a in FIG.
Reference numerals 58a and 58a denote stopper rings for retaining, which are fixed to the upper ends of the support shafts 52 and 58, respectively.

In the above structure, when the sun gear 23a is rotated in the direction of arrow f from the state shown in FIG. 2, the swing lever 53 moves in the same direction in conjunction with this, and the engaging projection 61 is formed.
While the protrusion 53b is disengaged from b, the planetary gear 54 is meshed with the intermediate gear 57, the paper feed roller 5 is rotated, and the document G is read by the reading device unit 10. At this time, since the paper feed roller 5 and the paper discharge roller 8 are rotating at substantially the same speed, accurate reading can be performed. The intermediate gear 57
Is rotated about 230 °, as shown in FIG. 8A, the planetary gear 54 faces the toothless portion 57a, and the sun gear 2
The interlocking connection between 3a and the intermediate gear 57 is released.

Next, the document G sandwiched between the paper feed roller 5 and the elastic body 9 is fed in the direction of arrow a by the paper discharge roller 8 and the pressing roller 8a, and is interlocked with the paper feed roller 5.
Is rotated, and the rotation of the paper feed roller 5 causes the intermediate gear 57 to rotate about 60 ° through the paper feed gear 56 and the driven gear 59.
By the rotation, as shown in FIG. 8B, the other protrusion 53a of the swing lever 53 is fitted into the engagement recess 61a, and the rotation of the intermediate gear 57 is stopped. Therefore, thereafter, the driven gear 59 slips on the intermediate gear 57 and runs idle until the document G passes between the paper feed roller 5 and the elastic body 9. Therefore, the feed roller 6 which has been conventionally required
(See FIG. 15) can be omitted.

When the original G passes between the paper feed roller 5 and the elastic body 9, the rotation of the paper feed roller 5 is stopped. Therefore, the second original that stands by in front of the paper feed roller 5 is stopped. There is no risk of G being continuously fed. Therefore, conventionally,
The one-way clutch provided on the paper feed roller 5 is unnecessary.

Then, as shown in FIG. 8 (c), when the sun gear 23a is rotated in the direction of arrow e, the swing lever 53 moves in the same direction in conjunction therewith, and the planetary gear 54 feeds the paper. The intermediate gear 57 is meshed with the gear 56 for rotation and the intermediate gear 57 is rotated by the rotation of the sun gear 23a via the feed gear 56 and the driven gear 59.
Is rotated, the engaging protrusion 61a faces the other protrusion 53b, and returns to the original state shown in FIG.

The mode switching operation will be described. FIG. 2 shows the mode switching state, in which one planetary gear 32 is meshed with the cam gear 27, and in this state, the stepping motor 20 rotates the drive gear 28 in the direction of arrow c, By intermittently rotating the cam gear 27 in the direction of arrow d by a predetermined angle, a paper feed mode (FIG. 6), a transmission mode (FIG. 7), a reception mode (FIG. 9), and a cutting mode (FIG. 1).
0) and the copy mode (FIG. 11).

FIG. 6 shows the sheet feeding mode. By rotating the drive gear 28 in the direction of arrow b in the mode switching state (FIG. 2), both planetary gears are interlocked with the drive gear 28 via the sun gear 29. 32 and 33 are moved in the direction of arrow g, and one planetary gear 32 is moved from the cam gear 27 by the protrusion 30a of the one rocking lever 30 being brought into contact with the front stage 36A of the one cam lever 36. The other planetary gear 33 holds the separated state, and the other planetary gear 33 has the other swing lever 3
When 1 contacts the other cam lever 37, it meshes with the first feeding / discharging first driven gear 47, and the sun gear 23a of the planetary gear mechanism 23 is rotated in the direction of arrow e in association with this, and the planetary gear 54 and The paper feed roller 5 is rotated via the paper feed gear 56, and the document G sandwiched between the paper feed roller 5 and the elastic body 9 is fed in the direction of arrow a.

FIG. 7 shows the transmission mode. By rotating the drive gear 28 in the direction of arrow c in the mode switching state (FIG. 2), the B position of the large diameter portion 25A of one cam 25 is changed to one side. Of the cam lever 36, and the G position of the middle diameter portion 26B of the other cam 26 faces the protrusion 37a of the other cam lever 37. Next, by rotating the drive gear 28 in the direction of the arrow b, the two planetary gears 3 are interlocked with the drive gear 28 via the sun gear 29.
2, 33 are moved in the direction of the arrow g, and the planet gear 32 on one side is brought into contact with the front stage 36A of the one cam lever 36 by the protrusion 30a of the one rocking lever 30.
The other planetary gear 33 is maintained in a state of being separated from the cam gear 27, and the other swing lever 31 is brought into contact with the other cam lever 37, whereby the second feed / discharge second driven gear 4
8, the first feed / discharge driven gear 47 rotates in the opposite direction to that in the paper feed mode, the sun gear 23a of the planetary gear mechanism 23 rotates in the direction of arrow f, and the planetary gear 54 also moves in the same direction and meshes with the intermediate gear 57, and by the rotation of the intermediate gear 57, the paper feed roller 5 is rotated via the paper feed gear 56, and the paper feed roller 5 and the elastic body 9 The sandwiched original G is sent out in the direction of arrow a. At this time, since the paper discharge roller 8 is rotated in the direction of arrow i, which is the reverse of the case of the paper feed mode, the document G is caught between the paper discharge roller 8 and the pressing roller 8a. As a result, the document G is sent out by the paper feed roller 5 and the paper discharge roller 8 that rotate at substantially the same speed, and the recording described on the document G is read by the reading device unit 10.

Subsequently, when the operation shown in FIGS. 8A to 8C is performed and the first original G passes between the paper feed roller 5 and the elastic body 9, the paper feed roller 5 rotates. Is stopped and the second original G waiting in front of the paper feed roller 5 is not continuously fed, and a predetermined gap is formed between the first original G and the second original G. be able to.

FIG. 9 shows the reception mode. By rotating the drive gear 28 in the direction of arrow c in the mode switching state (FIG. 2), the D position of the middle diameter portion 25B of one of the cams 25 is changed to one side. And the I position of the large-diameter portion 26C of the other cam 26 faces the protrusion 37a of the other cam lever 37. Next, by rotating the drive gear 28 in the direction of the arrow b, the two planetary gears 3 are interlocked with the drive gear 28 via the sun gear 29.
2, 33 are moved in the direction of the arrow g, and the planet gear 32 on one side is brought into contact with the middle step 36B of the cam lever 36 by the projection 30a of the one rocking lever 30.
The planetary gear 33 of the other side is meshed with the driven gear 41 for the platen roller, and is separated from the first and second driven gears 47 and 48 for feeding and discharging by the other swing lever 31 coming into contact with the other cam lever 37. The receiving side platen roller 14 is rotated via the gear mechanism 40 in association with the rotation of the platen roller driven gear 41, and the recording head 13 is rotated.
Thus, the recording paper P on which the received signal is recorded is sent out.

FIG. 10 shows the cutting mode,
By rotating the drive gear 28 in the direction of arrow c in the mode switching state (FIG. 2), the small diameter portion 25C of the one cam 25 is rotated.
And the J position of the large diameter portion 26C of the other cam 26 is opposed to the protrusion portion 37a of the other cam lever 37.
Next, by rotating the drive gear 28 in the direction of the arrow b, the two planetary gears 3 are interlocked with the drive gear 28 via the sun gear 29.
2, 33 are moved in the direction of the arrow g, and the planet gear 32 on one side is brought into contact with the rear stage 36C of the cam lever 36 by the projection 30a of the one rocking lever 30.
The other planetary gear 33 is meshed with the driven gear 44 for the cutter, and the other swing lever 31 has the other swing lever 31 and the other cam lever 3
By contacting the first and second driven gears 4 for feeding and discharging,
The gear mechanism 43 and the crank mechanism 4 are separated from each other by the rotation of the cutter driven gear 44.
The cutter 17 rotates about the support shaft 16 via the two, and the cutter 17 and the fixed blade 18 cut the recording paper P.

FIG. 11 shows the copy mode, in which the drive gear 28 is rotated in the direction of arrow c in the mode switching state (FIG. 2), so that the middle diameter portion 2 of one cam 25 is rotated.
The C position of 5B is made to face the protrusion 36a of the one cam lever 36, and the H of the middle diameter portion 26B of the other cam 26 is set.
The position is made to face the protrusion 37a of the other cam lever 37. Next, by rotating the drive gear 28 in the direction of arrow b, the two planetary gears 32, 33 are moved in the direction of arrow g via the sun gear 29 in conjunction therewith, and one planetary gear 32 is The protrusion 30a of the rocking lever 30 is brought into contact with the middle stage 36B of the one cam lever 36 to be meshed with the driven gear 41 for the platen roller, and the other planetary gear 33 has the other rocking lever 31 of the other. The second feed gear 48 for feeding / discharging is brought into contact with the cam lever 37 of the above, and is a combination of a transmission mode and a reception mode, and rotates at the same speed. The document G is sent out by means of 8 and the recording described in the document G is read by the reading device section 10, and the read information is recorded by the recording head 13 on the recording paper P. It is recorded, so that the feeding and the recorded recording paper P.

The operation of a control device (not shown) including a microcomputer for controlling the facsimile machine will be described. In the case of the transmission operation, as shown in FIG. 12, first, the document G is inserted into the insertion port 11, and the drive gear 28 is moved by the arrow c according to the detection signal of the sensor that detects it.
In the direction (S1), the mode switching state (FIG. 2) is switched to the sheet feeding mode (FIG. 6) (S2). Subsequently, the drive gear 28 is rotated in the direction of the arrow b, so that the document G is fed by the paper feed roller 5 and the elastic body 9 (S3). Next, when the document G is fed by a predetermined length (S4), the start button is pressed to switch to the transmission mode (FIG. 7) (S5), and the drive gear 28 is rotated in the direction of arrow b. Thus, the document G is fed by the paper feed roller 5 and the paper discharge roller 8 (S6), the recording of the document G is read by the reading device section 10, the read signal is transmitted (S7), and the document G is sent (S6).
8). Thereafter, the sensor detects whether or not the document G is present in the insertion port 11. If the document G is present, the process returns to S1 again, and the above operation is repeated. If the document G is not present (S9), the drive is performed. The gear 28 is rotated in the direction of arrow c (S10) and returned to the mode switching state (FIG. 2) (S11).

The receiving operation will be described with reference to FIG.
First, the drive gear 28 is rotated in the direction of arrow c based on the reception signal (S12), and the mode switching state (FIG. 2) is switched to the reception mode (FIG. 9) (S13). continue,
By rotating the drive gear 28 in the direction of the arrow b, the recording sheet P is sent out by the receiving side platen roller 14, and the received signal is recorded on the recording sheet P by the recording head 13 (S14). Next, if the recording paper P is fed out for a predetermined length (S15), the drive gear 28 is rotated in the direction of arrow c (S16), and the cutting mode (FIG. 10) is switched (S17), and the drive gear 28 is moved. When the recording paper P is rotated by the cutter 17 by being rotated in the direction of arrow b (S18).
Is cut (S19). After that, if there is a received signal, the process returns to S12 again, and the above operation is repeated. If there is no received signal (S20), the drive gear 28 is rotated in the direction of arrow c (S21), and the mode switching state (FIG. 2) is entered. Returned (S
22).

The copying operation will be described with reference to FIG. 14. First, by inserting the document G into the insertion port 11, the drive gear 28 is rotated in the direction of arrow c by the detection signal of the sensor for detecting it (S23). The mode switching state (FIG. 2) is switched to the paper feeding mode (FIG. 6) (S24). Subsequently, the drive gear 28 is rotated in the direction of the arrow b, so that the document G is fed by the paper feed roller 5 and the elastic body 9 (S25). Next, if the document G is fed by a predetermined length (S26), the start button is pressed to switch to the copy mode (FIG. 11) (S26).
27), the drive gear 28 is rotated in the direction of the arrow b, so that the document G is fed by the paper feed roller 5 and the paper discharge roller 8 (S28), and the recording of the document G is read by the reading device unit 10 and read. Recording head 13
Then, the recording sheet P is sent out by the receiving platen roller 14 (S29), and the original G is sent out. Next, if the recording paper P is fed out for a predetermined length (S30), the drive gear 28 is rotated in the direction of arrow c (S31), the cutting mode (FIG. 10) is switched (S32), and the drive gear 28 is moved. The recording paper P is cut by the cutter 17 by being rotated in the direction of the arrow b (S33) (S34). afterwards,
Whether or not the document G is present in the insertion port 11 is detected by the sensor. If the document G is present, the process returns to S23 and the above operation is repeated. If the document G is not present (S35), the drive gear 28 is used. Is rotated in the direction of arrow c (S36) and returned to the mode switching state (FIG. 2) (S3).
7).

[0037]

According to the first aspect of the invention, the paper feed roller and the paper discharge roller are rotated to sequentially feed a plurality of originals into the transmission section, and the planetary gear mechanism temporarily stops the paper feed roller. Since a predetermined space is formed between the originals, it is not necessary to provide the paper feed roller with an expensive one-way clutch as in the conventional case, and the manufacturing cost can be reduced.

Further, by rotating the paper feed roller and the paper discharge roller at substantially the same speed, the conventionally required feed roller can be omitted, and the structure can be simplified by the amount omitted, and the manufacturing cost can be reduced. Can be cheaper.

According to the second aspect of the invention, the document feeding operation can be performed smoothly and reliably.

[Brief description of drawings]

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

FIG. 2 is a side view of the cam mechanism in a mode switching state.

FIG. 3 is an exploded perspective view of a main part of the cam mechanism.

4A and 4B are front views of a cam of the cam mechanism.

FIG. 5 is an exploded perspective view of the planetary gear mechanism.

FIG. 6 is a side view of a main part of the cam mechanism in a paper feed mode.

FIG. 7 is a front view of a main part of the cam mechanism in a transmission mode.

8A to 8C are side views showing the operation of the planetary gear mechanism.

FIG. 9 is a side view of a main part of the cam mechanism in a reception mode.

FIG. 10 is a side view of a main part of the cam mechanism in a cutting mode.

FIG. 11 is a side view of a main part of the cam mechanism in a copy mode.

FIG. 12 is a flowchart for explaining the same transmission operation.

FIG. 13 is a flowchart for explaining the same receiving operation.

FIG. 14 is a flowchart for explaining the same copying operation.

FIG. 15 is a vertical sectional view showing a conventional facsimile apparatus.

[Explanation of Codes] 1 Transmitter 2 Receiver 3 Recording paper cutting unit 5 Paper feed roller 8 Paper discharge roller 10 Reader unit 13 Recording head 14 Platen roller 17 Cutter 20 Stepping motor (drive motor) 22 Cam mechanism 23 Planetary gear mechanism 23a sun gear 54 planetary gear 56 paper feeding gear 57 intermediate gear 57a toothless portion 59 driven gear G original P recording paper

Claims (2)

[Claims] 1. A paper feed roller for feeding a document, a reading unit for reading a record of the document, a transmission unit having a paper discharge roller for feeding the document, and a record for recording a reception signal on a recording sheet. A facsimile apparatus comprising: a head and a receiving section having a platen roller for sending out a recording sheet on which a received signal is recorded; and a recording sheet cutting section having a cutter for separating the recording sheet sent out from the receiving section, A planetary gear mechanism that interlocks the paper feed roller and the paper ejection roller with the drive motor to rotate both rollers at substantially the same speed to feed the document and then release the interlocking connection between the paper feed roller and the drive motor. A facsimile machine characterized by being provided with. 2. The planetary gear mechanism includes a sun gear that is interlockingly connected to a paper ejection gear that is concentrically fixed to a paper ejection roller,
A planetary gear that meshes with the sun gear, and the planetary gear is configured to be selectively meshable with a feeding gear that is concentrically fixed to a feeding roller and an intermediate gear that has a toothless portion. Is
A driven gear that is concentrically pressed against the intermediate gear is meshed with the paper feed gear, and by rotating the sun gear, the paper discharge roller is rotated via the paper discharge gear, and A planetary gear that moves in conjunction with the rotation is meshed with an intermediate gear, and the rotation of the intermediate gear causes the paper feed roller to rotate at substantially the same speed as the paper discharge roller via the gear for feeding paper. 2. The facsimile apparatus according to claim 1, wherein the toothless portion is rotated by a predetermined angle to face the idle gear to release the meshing state between the planet gear and the intermediate gear.