JPS6150421B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a facsimile transmission device equipped with an automatic paper feeding function, which is capable of repeatedly transmitting the same original in order to obtain a plurality of recorded images from the same original.

Conventionally, when a plurality of received recorded images are required in facsimile communication, the receiving side must make copies of the required number of recorded images, which requires time and effort.

Therefore, in facsimile communication, the present invention provides
When a plurality of recorded images are required, the same document can be sent repeatedly on the sending side. That is, according to the present invention, a paper feeding section and a reading scanning section are provided in the document paper transport path, the paper feeding section is provided with a first feeding roller rotated by a pulse motor via an electromagnetic clutch, and the reading scanning section is provided with a first feeding roller rotated by a pulse motor via an electromagnetic clutch. is equipped with a second feed roller that is reversibly rotated by a pulse motor, a transfer conversion section is provided between the paper feeding section and the reading/scanning section, and a return path is branched from the transfer path by a conversion guide. form,
Further, a switch for controlling the operation of the pulse motor and the electromagnetic clutch is disposed in the power feeding section and the reading scanning section, and in a normal state, the pulse motor and the electromagnetic clutch are driven by the operation of the switch to sequentially transport the manuscript paper. performs sub-scanning, and during repeated operations, the first
At the same time, the pulse motor is controlled by the reversal switching signal to reverse the second feed roller, and the document is returned to the return path via the transfer conversion section, and the document is returned to the second feed roller again. A facsimile transmission device is obtained which is characterized in that the roller is rotated in the normal direction to perform repetitive sub-scanning of the document. Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic longitudinal sectional side view of the apparatus of the present application, and FIG. 2 is a perspective view of the automatic paper feeding mechanism thereof. Reference numeral 1 denotes a casing, and a manuscript paper transport path communicating from the top surface to the bottom surface in the front part. 2, a paper feeding section 3 is provided in the upper half of the transfer path 2, and a reading scanning section 4 is provided in the lower half.
are provided respectively, and between the two parts 3 and 4,
A converting section 5 for the direction of document paper transport is provided, and a document paper return path 6 is formed from the converting section 5 to the front side of the casing 1.

The paper feed section 3 has a feed roller 7 and a return belt 8, and the return belt 8 is suspended between pulleys 9 and 9', contacts the feed roller 7, and rotates at a slightly slower speed in the opposite direction as described later. be done. Original paper feed section 1 located above the feed roller 7 and return belt 8
A micro switch 11 as a first switch is disposed on the lower surface side of the switch 0, and the tip of its operator 12 protrudes from the lower surface, and a photoelectric switch as a second switch is disposed on the lower sending part 13. A light-emitting element 15 and a light-receiving element 16 forming the structure 14 are arranged opposite to each other with a passage in between. On the other hand, the reading/scanning section 4 in the lower half is provided with clamp pressure feed rollers 17, 17' and 18, 18' located at the upper and lower parts of the passage.
18', there is a window hole 1 located on the inner surface of the passage.
9 is provided, and a transparent body 20 such as a glass plate is fitted into this window hole 19.
7, 17' and the window hole 19, a light emitting element 22 and a light receiving element 23 constituting a photoelectric switch 21 as a third switch are disposed opposite to each other with a passage in between. Further, a transfer conversion guide body 24 is disposed in the conversion section 5, a swinging piece 26 is fixed to its rotating shaft 25, a movable shaft 27' of a solenoid 27 is connected to one end of the swinging piece 26, and a movable shaft 27' of a solenoid 27 is connected to one end of the swinging piece 26. A return coil spring a is attached to the end to apply a biasing force in the return direction of the swing piece 26 by pulling it in a direction opposite to the direction in which the movable shaft 27' moves. In addition, there is a window hole 1 inside the case 1.
A light source L for sub-scanning is located near the inside of the window hole 19 to optically read the manuscript paper passing through the window hole 19, and the reflected light beam obtained by irradiating the window hole 19 from the inside travels in the traveling direction. A photoelectric conversion device 29 is provided via a lens system 28 .

In addition, the feed roller 7 of the paper feed section 3, the return belt 8, and the upper and lower feed rollers 1 of the reading scanning section 4
7, 17', 18, 18' are driven by a pulse motor 30. That is, as shown in FIG. 2, the rotating shaft 31 of the feed roller 7 of the power supply paper section 3 is connected to an electromagnetic clutch 32, and the electromagnetic clutch 32 is connected to a pulse motor 30, a pulley 33 fixed to the rotating shaft, and a drive belt. 34, first interlocking pulley 35,
The rotational force is transmitted through the second pulley 36 and the interlocking belt 37, and the feed roller 7 and return belt 8 are connected to a small diameter pulley 38 fixed to the rotating shaft 31 of the feed roller 7 and one of the return belts 8. A belt 41 is suspended between the rotation shaft 39 of the pulley 9 and a large diameter pulley 40 fixed to the rotation shaft 39 of the feed roller 7.
1 is transmitted to the rotating shaft 39 of the return belt 8, and the return belt 8 is rotated at a slightly slower speed in the opposite direction to the feed roller 7. On the other hand, the rotating shaft 43 of one of the upper feed rollers 17, 17' of the reading scanning section 4 is coaxial with the interlocking pulleys 35, 36, and a pulley 43 is fixed to this, and this pulley 43 and one of the lower feed rollers 18, 18' rotation axis 44
A belt 46 is suspended between the pulley 45 fixed to the upper rotating shaft 42 and the lower rotating shaft 44.
and one of the upper and lower feed rollers 17 and 18
On the other hand, since the other feed rollers 17' and 18' are rotated under pressure, the one feed rollers 17 and 18 are rotated in opposite directions.

Next, a drive circuit for the pulse motor 30, electromagnetic clutch 32, and solenoid 27 of the present device will be explained with reference to FIG. The first, second, and third switches 11, 14, and 21 are connected to a switch signal conversion circuit 47, and when the switches 11, 14, and 21 are turned on, the switch signal conversion circuit 47 generates switch signals Sw ₁ , Sw _{2 .} , Sw ₃ is supplied, and the signal is converted to a TTL level and sent to the first gate circuit 48, second gate circuit 49, and first logic circuit 5.
0 and the second logic circuit 51.

The first gate circuit 48 includes switches 11, 14,
When one of 21 is turned on, the pulse motor 30
A signal voltage is supplied to the power supply circuit 52 of , and its power switch is turned on. Also, the first logic circuit 50
is the switch signal of switches 11, 14, 21
The output signals of Sw ₁ , Sw ₂ , Sw ₃ and the counter circuit 53 are monitored, and when one of the switches 11 , 14 , 21 is turned on, a fast forward signal is sent to the second logic circuit 51 .
When the output of the counter circuit 53 is turned on, a fast forward stop signal is output to the second logic circuit 51. At the same time, a clutch off signal is output to the clutch drive circuit 54. Further, the counter circuit 53 counts the driving pulses of the pulse motor 30 from when the third switch 21 is turned on until the leading edge of the original reaches the reading line, and when the leading edge of the original reaches the reading line, a signal to that effect is sent. is output to the first and second logic circuits 50 and 51. Further, the second logic circuit 51 controls the third gate circuit 55 using the output signal of the first logic circuit 50, and uses the sub-scanning pulse signal S ₁ inputted to the third gate circuit 55 and the forward rotation fast-forward clock. Which signal of the signal S ₂ and the inverted fast-forward clock signal S ₂ is selected by the pulse motor drive circuit 5?
Selectively control whether to output to 6.

Furthermore, the second logic circuit 51 monitors the normal rotation/inversion switching signals S ₄ and S ₅ and controls the third gate circuit 55 when the inversion fast-forward signal is input, and switches the inversion fast-forward clock signal S ₃ to the pulse motor. The drive circuit 56 outputs the signal. At this time, the solenoid drive circuit 57 of the transfer conversion guide 24 is simultaneously controlled so that the transfer conversion guide 2
Operate 4.

On the other hand, the pulse motor drive circuit 56 is connected to the power supply circuit 5
2, outputs a normal rotation pulse and an inversion pulse according to the pulse signal output from the third gate circuit 55,
The pulse motor 30 is driven. In the figure, 58 is a frequency dividing circuit.

First, a large number of sheets of transmission original paper P are loaded into the paper feed section 3.
When the document is placed on the paper feeding section 10 of the paper, the first switch 11 is turned on, and the pulse motor 30 is turned on.
The power supply circuit 52 is turned on, the pulse motor 30 is driven, the feed roller 7 is rotated, and the original paper P is rapidly transported forward. At this time, the front edges of the many manuscript papers except the lowest manuscript paper come into contact with the return belt 8, and the belt 8 is rotated in the opposite direction to the feed roller 7, so that The transfer to the lowermost tier is prevented, and only the one sheet of manuscript paper at the bottom stage is transferred, and after that, the manuscript paper of the next stage is transferred, and in this way, the manuscript papers are automatically transported one by one in the order of their addresses. In this way, the original paper P is transferred forward, and while it passes between the light emitting element 15 and the light receiving element 16 of the second switch 14, the second switch 1
4 is in the on state and connects the drive of the pulse motor 30. Further, the original paper P is transferred and transferred under pressure by the upper feed rollers 17 and 17' of the reading scanning section 4, and is transferred to the light emitting element 22 of the third switch 21.
When the leading edge of the original paper P reaches the position of the window hole 19, that is, on the reading line, the third switch 21 is turned on. circuit 5
6, the fast forwarding of the document paper P is canceled and sub-scanning is performed at a constant speed, and the document is read and scanned.
Reading and scanning of the original is performed by irradiating light from a light source 27 onto the original paper P from inside the window hole 19, forming an image of the original using a lens system 28, and transmitting the imaged light to a photoelectric conversion device 29. It is guided to a photosensitive surface, photoelectrically converted, and transmitted. At this time, the clutch drive circuit 54 is turned off, the electromagnetic clutch 32 is separated, and the feed roller 7
Transmission of the rotational force from the pulse motor 30 to the rotating shaft 31 of the document is stopped, the feed roller 7 and the return belt 8 are stopped, and the next document sheet is not transferred.

The original paper P that has been read and scanned in this manner is conveyed by the lower conveying rollers 18, 18' under pressure, and is discharged from the lower part of the conveying path 2 to the outside.

When a single document is read and transmitted as described above, a single recorded image is obtained on the receiving side.
To obtain a plurality of recorded images for one document on the receiving side, the following operation is performed. That is, when the inversion switching signal _S3 is supplied to the second logic circuit 51 and the inversion fast-forward clock signal _S3 is outputted to the pulse motor drive circuit 56, the reading scanning of the original is completed in the reading scanning section 4, and the original is The pulse motor 30 is driven in the reverse direction while the paper P is being transferred under pressure by the lower feed rollers 18 and 18', and the feed roller 1
7, 17' and 18, 18' rotate in the opposite direction, and the original paper P
is transported back. At this time, the transfer conversion guide body 24
is the original paper P whose direction is changed (indicated by the two-dot chain line in FIG. 1) by the drive of the solenoid 27 and is transported backwards.
is returned to the front side of the casing 1 from the return passage 6, and in this state, the pulse motor 30 is again driven in normal rotation to rotate the feed rollers 17, 17', 18, 18' in the normal direction, and returned to the return passage 6. The original paper P is again transferred to the reading/scanning device 4, where the original is read, scanned, and transmitted in the same manner as described above.

In this way, the same document is transmitted as multiple documents by repeating the reversal transfer between the reading scanning device 4 and the return path 6 without ejecting one document sheet P from below the path 2 to the outside. However, multiple recorded images can be obtained on the receiving side.

In this example, the transfer/conversion guide 24 is configured to change direction by a solenoid 27 as the original paper is transferred/transferred, but as shown in FIG. , may be fixed above the upper feed rollers 17, 17' of the reading/scanning device 4 so as to form a distribution path.

As described above, according to the present application, the feed roller of the reading scanning unit is configured to be able to rotate in forward and reverse directions, and in normal facsimile transmission in which one recorded image is obtained from one original, the original paper is transferred from the paper feeding unit. The paper is transferred to the reading scanning section, and after being read and scanned, it is ejected as is.If you wish to obtain multiple recorded images from one sheet of paper as necessary, the document is transferred to the reading and scanning section. By repeating forward and reverse transport according to the required number of recorded strokes, the sub-scanning of one sheet of manuscript paper can be automatically repeated and transmitted, making it easy for the receiving side to obtain multiple recorded images of the same manuscript. In addition, it is possible to eliminate the need for copying on the receiving side, allowing the recorded images to be quickly distributed to various locations, and there is no need to provide a copying device, simplifying the equipment on the receiving side. Since the repetitive sub-scanning is automatically performed continuously from the feeding of the original paper, it has the advantage that the operation for transmitting the original becomes extremely simple.

[Brief explanation of the drawing]

What is shown in the drawing is one embodiment of the device of the present application, and the first
2 is a perspective view of the automatic paper feeding mechanism of the present invention, FIG. 3 is a block diagram of the drive circuit of the document paper transport device, and FIG. 4 is a diagram of the document paper transport conversion unit. FIG. 7 is a schematic cross-sectional view of another embodiment. In the figure 1... Enclosure, 2... Transfer path, 3... Paper feeding section, 4... Reading scanning section, 5... Transfer converting section, 6
...Manuscript paper return path, 7...Feed roller, 8...
Return belt, 11...First switch, 14...
Second switch, 17, 17', 18, 18'...
Feed roller, 19... Window hole, 21... Third switch, 24... Transfer conversion guide, 27... Solenoid, 28... Lens system, 29... Photoelectric conversion device, 30... Pulse motor, 32 ... electromagnetic clutch, 47 ... switch signal conversion circuit, 52 ... pulse motor power supply circuit, 54 ... clutch drive circuit, 56 ... pulse motor drive circuit, 57 ... solenoid drive circuit.

Claims (1)

[Claims] 1. A document paper transport path is provided with a paper feeding section and a reading running section, the paper feeding section is equipped with a first feeding roller that is rotated by a pulse motor via an electromagnetic clutch, and the reading scanning section is equipped with a reversible roller that is rotated by a pulse motor via an electromagnetic clutch. a second feed roller that is rotated by the paper feeding section, a transfer conversion section is provided between the paper feeding section and the reading/scanning section, and a return path branching from the transfer path is formed by a conversion guide; A switch for controlling the operation of a pulse motor and an electromagnetic clutch is disposed in the paper feeding section and the reading scanning section, and in a normal state, the pulse motor and electromagnetic clutch are driven by the operation of the switch to sequentially transport the original paper and to Scanning is performed, and during repeated operations, the first feed roller is stopped via the electromagnetic clutch, and the pulse motor is controlled by the reversal switching signal to reverse the second feed roller, so that the original is transferred. The second
1. A facsimile transmitting device characterized by rotating a feed roller in the normal direction to perform repetitive sub-scanning of a document.