JP2587051Y2 - Read / write device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reading / writing device for reading information in a document and writing information on a recording sheet in a facsimile apparatus or the like, and more particularly to a structure for sucking the document and discharging the recording sheet. is there.

[0002]

2. Description of the Related Art FIG. 3 is a block diagram showing an example of a read / write device in a conventional facsimile machine or the like.

This reading / writing device is a device for reading information on a document 1 and writing information on a recording paper 2 with a single platen roller 3.
The reading sensor 4 and the print head 5 are arranged at symmetrical positions. The read sensor 4 has a function of optically reading information on the document 1, and the print head 5
It is composed of a thermal head and has a function of writing information on the recording paper 2. The platen roller 3 has a function of pressing the document 1 at a reading point of the document 1 and feeding the document 1 in the direction A, and a function of pressing the recording sheet 2 at a writing point on the recording sheet 2 and feeding the document 2 in the direction B. doing.

Next, the operation will be described. The original 1 is sandwiched between a reading sensor 4 and a platen roller 3, and reading is performed by the reading sensor 4 at that position, and at the same time, rotation of the platen roller 3 causes reading and moving line by line in the A direction. Then, this operation is repeated. The recording paper 2 is sandwiched between the print head 5 and the platen roller 3,
At this position, writing is performed by the print head 5 and at the same time, rotation of the platen roller 3 causes
It is written and moved line by line. Then, this operation is repeated . Also, by performing the read and write operations at the same time, while reading move information of the document 1, it is possible to write information on the recording paper 2.

[0005]

However, the apparatus having the above configuration has the following problems. The conventional reading / writing device has the advantage that the paper feed mechanism is simplified because the reading of the information on the original 1 and the writing of the information on the recording paper 2 are performed using one platen roller 3. ing. However, since the recording paper 2 after writing is not cut using a cutter, the structure is simplified, but the recording paper 2 on which information is written must be cut by an operator. Was inconvenient.
In addition, since there is no automatic paper feed mechanism for original 1, original 1
There is a drawback that the manual feeding must be performed one by one, which is inconvenient.

Therefore, as another conventional apparatus, there has been proposed a reading / writing apparatus provided with an automatic paper feeding mechanism and a cutting mechanism for the original 1. This type of apparatus has an automatic sheet feeding mechanism and a cutting mechanism, so that usability is improved. However, since a roller for automatically feeding the original 1 and a roller for discharging the cut recording paper 2 are provided one by one, a plurality of rollers are required, and There was a problem that complexity and cost increased, and it was difficult to solve it.

The present invention provides a read / write device which solves the problem of the prior art that the provision of an automatic paper feed mechanism and a cut mechanism complicates the structure.

[0008]

According to the present invention, there is provided a read / write device comprising:
To feed the document toward the first discharge port and
The sheet is conveyed in the direction of the second discharge port, and is rotated in the reverse direction to rotate the second discharge port.
The recording paper on the unwritten side conveyed in the exit direction is moved in the opposite direction.
A first roller to be pulled back, and facing the first roller
A reading sensor provided for reading information in the document;
Facing the first roller opposite the reading sensor
And the second discharge port is provided by the first roller.
Print head for writing information on the recording paper conveyed in the direction
And the second drain at a predetermined distance from the first roller.
It is provided in the exit direction, and the information is written by the print head.
A cutter for cutting the inserted recording paper;
Is provided in the direction of the second discharge port at a fixed distance, and
With this, the original is sucked and separated into the reading sensor.
The recording paper supplied and cut by the cutter is
A second roller for discharging in a second discharge port direction, and the original
And rotating the first roller forward when the recording paper is conveyed.
After the cutting of the recording paper by the cutter, the first roller
A first rotating means for reversely rotating the first roller,
At the time of rotation, regardless of this forward rotation or reverse rotation, the second
And second rotating means for rotating the rollers in the forward direction.
You.

[0009]

According to the present invention, the reading / writing device is constructed as described above.
The following effects when writing to and copying to
Is performed. When reading an original, the first rotating means
The first roller rotates forward, and the second roller rotates the first roller.
The second roller rotates forward. Supplied to the second roller side
The original is sucked by the second roller and read by the reading sensor.
Sent in the direction. If multiple sheets are supplied,
Only one of them is separated by the second roller.
Then, it is sucked and sent toward the reading sensor. Reading
The information in the original sent in the sensor direction is sent to the reading sensor.
Therefore, the first discharge port is read by the first roller.
It is discharged in the direction. First writing means for writing on recording paper
Causes the first roller to rotate forward, and the second rotating means
Accordingly, the second roller rotates forward. The recording paper is in the first row
And sent to the print head by the
Is written and sent in the cutter direction. Record already written
The paper is held at a predetermined position between the first roller and the second roller.
Cut by cutter. Then, by the first rotating means,
Side after the first roller is rotated in the reverse direction and cut
The leading edge of the recording paper is pulled back to the predetermined position, and the next writing
Prepare for the operation. On the other hand, the retraction movement by the first roller
Recorded paper that has been cut during the operation
Is a second discharge port by a second roller rotating forward.
Discharged in the direction. When copying, copy the first
The information is read by a reading sensor, and the read information is
It is written on the recording paper by the print head. Like this
When the copying of the first document is completed, the recording paper
Cut in place between the roller and the second roller
After that, the first roller that rotates in the reverse direction
The leading edge of the recording paper is pulled back to the specified position, and the second sheet is written
Prepare for the operation. On the other hand, the retraction movement by the first roller
While the operation is being performed, the recorded paper
Discharged by the second roller toward the second discharge port.
You. At the same time, the second original is moved by the second roller.
The document is separated and supplied, and is conveyed in the direction of the reading sensor.
In other words, pull the leading end of the recording paper on the unwritten side to a predetermined position.
Operation and ejecting the cut recording paper
Operation and separation / supply of originals and transport in the direction of the reading sensor
And the three operations are performed in parallel.

[0010]

1 is a block diagram of a read / write device such as a facsimile apparatus showing an embodiment of the present invention.

This reading / writing device reads information on a document 11 and writes information on a recording paper 12 in one line.
This is an apparatus using a first roller (for example, a platen roller ) 13, and a reading sensor 14 and a print head 15 are arranged symmetrically with respect to the platen roller 13. The reading sensor 14 has a function of optically reading information on the document 11. The print head 15
For example, it is composed of a thermal head, one end of which is a fulcrum shaft 15a.
The recording paper 12 is supported by its own weight.
Is pressed against the platen roller 13 to write information on the recording paper 12. The platen roller 13 presses the document 11 at a reading point of the reading sensor 14, sends the document 11 to a first discharge port 16 in a first discharge port direction (for example, the direction A ) , and prints. pressing the recording sheet 12 in the writing point of the head 15, the recording sheet 12 and the second outlet direction (e.g., B direction) and has a function of sending to the second <br/> outlet 17.

At the exit side of the print head 15, a cutter 18 for cutting the recording paper 12 on which information is written by the print head 15 is provided. On the entrance side of the reading sensor 14 and the exit side of the cutter 18, a second roller (for example,
For example, an automatic document feed roller, hereafter called "ADF roller"
19 ) , and the ADF roller 1 is provided on the outer periphery thereof.
9, a separator 20 and a pinch roller 21 are arranged. The ADF roller 19 has a function of feeding the document 11 in the direction A while automatically feeding the document 11, and also has a function of a discharge roller for feeding and discharging the recording paper 12 cut by the cutter 18 in the direction B. ing. The separator 20 has a function of, when a plurality of originals 11 are supplied, separating them and sending only one original 11 to the platen roller 13 side. The pinch roller 21 has a function of moving the recording paper 12 in the direction B without slipping when the recording paper 12 is discharged by the rotation of the ADF roller 19.

FIG. 2 shows the platen roller 13 shown in FIG.
FIG. 2 is a configuration diagram illustrating an example of a drive mechanism of an ADF roller 19; In this drive mechanism, in the forward rotation direction (hereinafter simply referred to as “square
Direction) R or reverse rotation direction (hereinafter simply referred to as “reverse direction”).
), A first rotating means (for example, a pulse motor ) 30 that rotates to L, and the platen roller 13 is directly connected to the pulse motor 30. The reverse rotation of the pulse motor 30 is transmitted to the pulse motor 30 so that the ADF roller 1
A first drive transmission mechanism 31 composed of a gear for rotating the ADF roller 9 in the forward direction R is connected to the first drive transmission mechanism 31 composed of a gear for rotating the ADF roller 19 in the forward direction R by transmitting the positive rotation of the pulse motor 30. Are connected to each other.

A first one-way clutch 33 that rotates only in the forward direction R via the drive transmission mechanism 31 is attached to the first drive transmission mechanism 31, and a second drive transmission mechanism 32 is A second one-way clutch 34 that rotates only in the forward direction R via the drive transmission mechanism 32 is attached. These first and second drive transmission mechanisms 31, 32 and
The first and second one-way clutches 33 and 34 allow the second
Are constituted.

Next, transmission (1), reception (2), and copy (3) operations will be described. (1) Transmission Operation When the original 11 is read by the reading sensor 14 and transmitted, the print head 15 is supported by its fulcrum shaft 15 a and held in a state of being separated from the platen roller 13.
The document 11 is inserted between the ADF roller 19 and the separator 20, and the pulse motor 30 is rotated in the forward direction R. The rotation of the pulse motor 30 in the forward direction R causes the platen roller 13 to rotate in the forward direction R, and the one-way clutch 34 via the second drive transmission mechanism 32 causes the ADF roller 19 to also rotate in the forward direction R.

When the ADF roller 19 rotates in the forward direction R, the supplied document 11 is sucked in the direction A. Manuscript 1
When the document 1 is sucked, only one document 11 that is in contact with the ADF roller 19 is separated by the separator 20 and sucked out of a plurality of documents 11 that are inserted one after another. The document 11 sucked by the ADF roller 19 is
The document 11 advances to the platen roller 13 and the reading sensor 14, and is sent in the direction A by the platen roller 13 rotating in the forward direction R by the pulse motor 30, and the document 11 is held between the platen roller 13 and the reading sensor 14. The above information is read. The feeding and reading of the document 11 are repeated, and the document 11 is discharged to the discharge port 16 in the A direction.

(2) Receiving Operation When information is printed on the recording paper 12 by the print head 15 and received, the print head 15 and the platen roller 13 are used.
The recording paper 12 sandwiched between the rollers is fed in the direction B by the platen roller 13 rotating in the forward direction R by the rotation of the pulse motor 30 in the forward direction R. Then, the recording paper 12
Is written between the print head 15 and the platen roller 13 by the print head 15.

When the recording paper 12 sent in the direction B by the rotation of the platen roller 13 reaches the ADF roller 19 through the cutter 18, the rotation of the pulse motor 30 in the forward direction R is changed by the second drive transmission mechanism 32. The rotation of the ADF roller 19 in the forward direction R transmitted through the one-way clutch 34 causes the ADF roller 19 to be fed in the B direction. Even after the print head 15 finishes writing on the recording paper 12, the pulse motor 30 continues to rotate in the forward direction R and sends the recording paper 12 until the end of the recording part reaches the cut part of the cutter 18. When the end of the recording paper 12 reaches the cut portion of the cutter 18, the recording paper 12 is cut by the cutter 18.

Thereafter, when the pulse motor 30 rotates in the reverse direction L, the platen roller 13 also rotates in the reverse direction L, and the ADF roller 19 rotates in the forward direction R via the first drive transmission mechanism 31 and the one-way clutch 33. To rotate. By the rotation of the platen roller 13 in the reverse direction L, the unused recording paper 12 is pulled back to the predetermined position C in preparation for the next reception, and the separated recording paper 12 is rotated by the rotation of the ADF roller 19 in the forward direction R. It proceeds in the direction B and is discharged from the discharge port 17 . If no second sheet is received, the pulse motor 3
The rotation of the platen roller 13 in the forward direction R by the rotation in the forward direction R of 0 causes the leading end of the recording paper 12 to be sent to the standby position D to be in a standby state.

(3) Copy Operation When information on the original 11 is read by the read sensor 14 and the read information is printed (copied) on the recording paper 12 by the print head 15, the print head 15 is supported by its fulcrum shaft 15a. And is in contact with the platen roller 13 by its own weight. The document 11 is inserted between the ADF roller 19 and the separator 20, and the pulse motor 30 is rotated in the reverse direction L. When the platen roller 13 rotates in the reverse direction due to the rotation of the pulse motor 30 in the reverse direction L, the recording paper 12 having the leading end at the standby position D is pulled back to the writing position sandwiched between the platen roller 13 and the print head 15.

At the same time, the ADF roller 19 is rotated in the forward direction R by the one-way clutch 33 via the first drive transmission mechanism 31. The document 11 is sucked in the direction A by the rotation of the ADF roller 19 in the forward direction R. When the original 11 is sucked, only one of the plurality of originals 11 that are in contact with the ADF roller 19 is separated by the separator 20 and sucked. The document 11 sucked by the ADF roller 19 is sandwiched between the platen roller 13 and the reading sensor 14 and advances to a reading position. With this operation, the recording paper 12 reaches the writing position of the print head 15 and the platen roller 13 at the same time when the document 11 reaches the reading position.

Next, when the pulse motor 30 is rotated in the forward direction R, the platen roller 13 is also rotated in the forward direction R, and the original 11 is fed in the direction A and the platen roller 13 is rotated.
The information on the document 11 is read by the reading sensor 14 at a position between the reading sensor 14 and the reading sensor 14. At the same time, the recording paper 12 is sent in the direction B by the rotation of the platen roller 13, and the platen roller 13 and the print head 15
In sandwiched position in, thus the information to the print head 15 is written. By this operation, feeding and reading of the document 11 are repeated, and feeding and writing of the recording paper 12 are repeated.

The pulse motor 30 continues to rotate in the forward direction R even after the print head 15 finishes writing on the recording paper 12, and feeds the recording paper 12 until the end of the recording paper 12 reaches the cut portion of the cutter 18. When the edge of the recording paper 12 reaches the cut portion of the cutter 18, the recording paper 12 is cut by the cutter 18. Thereafter, when the pulse motor 30 rotates in the reverse direction L, the platen roller 13 rotates in the reverse direction,
The ADF roller 19 rotates in the forward direction R via the first drive transmission mechanism 31 and the one-way clutch 33. When the platen roller 13 rotates in the reverse direction L, the cut recording paper 1
2 is located at a predetermined position C in order to prepare for the second copy.
When the ADF roller 19 rotates in the forward direction R, the next document 11 is pulled in, and at the same time, the cut recording paper 12 advances in the direction B and is discharged from the discharge port 17.

When the second copy is not performed, the platen roller 13 rotates in the forward direction R by the rotation of the pulse motor 30 in the forward direction R, and the leading end of the recording paper 12 is fed to the standby position D. It goes into a standby state. With such a series of operations, the information of the document 11 can be simultaneously written on the recording paper 12 while reading the information of the document 11.

As described above, in the present embodiment , the following
There are advantages. (A) Separation and suction of the original 11 and discharge of the cut recording paper 12 can be performed using one ADF roller 19, so that the usability is improved. Moreover, manuscript 11
Can be separated and sucked, and the cut recording paper 12 can be discharged using one ADF roller 19, so that the number of parts of the apparatus is reduced, the structure is simplified, and the apparatus can be downsized. , And cost reduction becomes possible. (B) In the receiving operation, the written recording paper 12
Is a position between the platen roller 13 and the ADF roller 19.
After being cut by the cutter 18 at the fixed position, the platen row
Unused record after cutting because the laser 13 rotates in reverse
The leading edge of the paper 12 is pulled back to the predetermined position C, and the next writing
It can be prepared for operation. On the other hand, the retraction operation
While being performed, the cut recording paper 12
Is discharged in the B direction by the ADF roller 19 that rotates in the forward direction.
Is done. Thus, the operation of pulling back the recording paper 12 is performed.
This makes it possible to use the recording paper 12 without waste.
Wear. In addition, discharge is performed in parallel with performing the retraction operation.
Operation to improve throughput.
Can be (C) During the copy operation, the copy of the first original 11
Is completed, and the recording paper 12 is
After being cut at a predetermined position between the F roller 19 and the
Since the ten roller 13 rotates in the reverse direction, the unused recording paper 12
Is pulled back to the predetermined position C, and the second
We can prepare for work. On the other hand, the retraction operation
While the recording is being performed, the written recording paper 12 rotates forward.
The paper is discharged in the B direction by the ADF roller 19. This and
At the same time, the second document 11 is moved by the ADF roller 19.
Are separated and supplied to the reading sensor 14 in the A direction.
It is. That is, the leading end of the unused recording paper 12 is moved to the predetermined position C.
And the cut recording paper 12
And the document 11 is separated and supplied, and the reading
The three operations of transporting to the sensor 14 are performed in parallel.
Can be. Thus, the leading end of the unused recording paper 12
By performing the pull-back operation, the recording paper 12 is wasted.
Can be used well. In addition, a pull-back operation is performed.
In parallel with this, the discharging operation of the written recording paper 12 and
Since the transport operation of the original 11 can be performed,
Cost can be improved.

The present invention is not limited to the above embodiment,
Various modifications are possible. For example, in FIG. 1, a configuration is used in which a plurality of documents 11 are separated by the separator 20, but a configuration in which the plurality of documents 11 are separated using other means such as a roller may be employed. In FIG. 2, the pulse motor 30 is formed of another motor, or drive transmission mechanisms 31 and 32 for transmitting the rotational force of the pulse motor 30.
Further, the one-way clutches 33 and 34 may be constituted by another drive transmission mechanism using a pulley or the like. Further, the above embodiment can be applied to other apparatuses such as a printer apparatus other than the facsimile apparatus.

[0027]

As described [devised effect above in detail, according to the present invention, using the second B over La, document separation suction, and it is possible to discharge the cut recording paper, usability improves. Moreover, it is possible to perform the recording paper discharge after the automatic sheet feeding and cut using a second B over La, structure becomes simple parts becomes small, cost reduction with the device can be miniaturized Will be possible. Furthermore, the present invention
Now, the recording paper having been written between the first and second rollers
After cutting the first roller, the first roller is rotated in reverse.
The leading edge of the unwritten side of the recording paper after cutting
The paper is pulled back to the predetermined position,
Can be used well. Moreover, the recording paper is pulled back.
In parallel with the operation, the second
The cut recording paper after cutting and suction of the original.
Can improve throughput.
it can.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a read / write device showing an embodiment of the present invention.

FIG. 2 is a configuration diagram of a driving mechanism in FIG.

FIG. 3 is a configuration diagram of a conventional read / write device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Original 12 Recording paper 13 Platen roller 14 Reading sensor 15 Print head 18 Cutter 19 ADF roller 20 Separator 21 Pinch roller

Claims (1)

(57) [Scope of request for utility model registration] An original is moved in a first discharge direction by a forward rotation.
And the recording paper is conveyed toward the second discharge port,
The unwritten data conveyed in the direction of the second outlet by the reverse rotation
A first roller to retract the viewing side of the recording sheet in the reverse direction, provided opposite to the first roller, information in the document
A reading sensor for reading information and the first roller on the opposite side of the reading sensor.
And the second discharge port is provided by the first roller.
Print head for writing information on the recording paper conveyed in the direction
And the second discharge port at a predetermined distance from the first roller.
Information is written by the print head.
A cutter that cuts the recording paper that has been cut, and a cutter that is separated from the cutter by a predetermined distance in the direction of the second discharge port.
Provided, the document is sucked by the normal rotation, and the reading is performed.
Separated and supplied to the sensor and cut by the cutter.
A second roller for discharging the recording paper toward the second discharge port.
And over La, the first roller during the conveyance of the document and the recording paper
After the cutter cuts the recording paper by the cutter,
A first rotating means for rotating the first roller in the reverse direction, and a forward or reverse rotation when the first roller rotates.
Regardless of the second rotation for rotating the second roller forward
Means for reading / writing
Place.