JPS62180664A - Picture reading and recording device - Google Patents

Abstract

PURPOSE:To simplify a structure reducing the number of parts, and to attain miniaturization, thinning and a remarkable cost down in a device by driving a main scanning mechanism in a reading system, and the main scanning mechanism at a recording head side with one driving source. CONSTITUTION:By rotating a motor 27, a wire 40 is pulled in arrow head direction shown in full line, and the second moving body 20 is moved in arrow head direction shown in full line, and reads an original 2 from its one end to the other end with a width of DELTA1. A carriage 38, synchronizing with the second moving body 20, is moved through a wire 35. A bit of picture information read out with a read sensor 34 is converted to an electrical signal, and is sent to a recording head 39 in the carriage 38 through a controller, and a read picture is recorded instantly with the head. Afterwards, the motor 27 is rotated in a reverse direction, the second moving body 20 and the carriage 38 are moved backward in arrow head direction shown in broken line, then returning to their original positions. Following that, a motor 19 is rotated, and after the first moving body 4 is moved by DELTA1 in continuous line Y direction and a subscan is performed, a share of width of DELTA1 adjacent to an original area read at the previous or preceding time is read, then being recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an image reading and recording device, and more particularly to an image reading and recording device that integrates an image reading system and a recording system.

[Prior Art] An image reading/recording apparatus, such as a digital copying apparatus, which reads an image using an image reading sensor and records the image based on the data is known.

In a conventional digital copying apparatus of this type, read image information is converted into a digital signal, and a recording head is operated based on the digital signal to perform recording.

[Problems to be Solved by the Invention] However, in the above-described structure, there is a mechanism that causes the reading system to perform main scanning and sub-scanning, an AL structure that causes the recording head to perform main scanning, and a recording medium such as a cut sheet or a roll of recording paper. A separate drive source was required for each.

For this reason, the number of parts is large and a complicated mechanism is required, which hinders miniaturization of the device and results in an extremely high cost.

[Means for Solving the Problems] In order to solve the two problems, the present invention provides a structure in which the main scanning mechanism of the reading system and the main scanning mechanism of the recording head are driven by one drive source. Adopted.

"Operation" When the above structure is adopted, one drive source drives the main scanning system on the reading side and recording side, and the other drive source drives the sub-scanning system on the reading side and the sub-scanning system on the recording sheet feeding side. and can be driven, reducing the number of parts and
The structure can be simplified, making the device smaller and thinner, and significantly reducing costs.

[Example] Hereinafter, the present invention will be described in detail based on the example shown in the drawings.

Figures 1 to 5 illustrate an embodiment of the present invention.
In the figure, the reference numeral 1 indicates the casing of the apparatus, and an opening 11 formed in a part of the upper surface of the casing is provided with a glass plate 3 on which a document 2 is placed. A first moving body 4 is arranged below the glass plate 3. This first moving body 4 has a length equal to or greater than the width of the glass plate 3, and its left and right sides are a pair of left and right guide rails 5.6 disposed inside the casing.
It is slidably fitted in via bearings 5a and 6a.

Further, shafts 7.8 are arranged in parallel within the casing at both ends in the longitudinal direction of the glass plate 3. Pulleys 9 are fixedly or rotatably installed at both ends of one shaft 7, a platen roller 10 is installed on the other shaft 8, and a pulley 11 is provided at a position corresponding to the pulley 9.
are fixed to both ends of the shaft 8. And pulleys 9 and 1
A wire 12 is stretched between the wires 1 and 1.

Further, one-sided clutches 13 are attached to both ends of the shaft 8 in parallel with the platen roller 10. This one-way clutch 13 has a structure that rotates the platen roller 10 only when the shaft 8 is rotated clockwise in FIG. A recording paper 14 is wound around this platen roller 10 and guided. The recording paper 14 is guided between the platen roller 10 and driven rollers 15, 16 which are in contact with the platen roller 10.

Further, a worm wheel 17 is fixed to one end of the shaft 8, and this worm wheel 17 meshes with a worm gear 18 rotated by a motor 19. Also,
The wire 12 is formed endlessly, and its upper middle portion 12a is fixed to both ends of the first movable body 4.

Therefore, when the shaft 8 is rotated by the rotation of the motor 19 via the worm gear device, the first moving body 4 is moved via the wire 12 in the Y direction (sub-scanning direction) in FIG.

Note that the diameter of the pulley 11 and the diameter of the platen roller 10 are determined so that the amount of movement of the wire 12 running through the pulley ll is the same as the amount of feeding of the recording paper 14 fed by the rotation of the platen roller 10. It is being Also,
In the illustrated example, the wires 12 are provided on the left and right sides, but the first movable body 4 can be moved using only one of them.

However, by downsizing the device and preventing shaking,
In order to improve accuracy during movement, it is better to provide wires 12 on the left and right sides.

Further, the first moving body 4 is provided with guide shafts 4a, 4a (Fig. 5) along the longitudinal direction, and the second moving body 20 is slidably attached to these shafts 4a, 4a. installed. The moving direction of the second moving body 20 is the X direction (main scanning direction) shown in FIG. 1, and the second moving body 20 is moved in a direction perpendicular to the moving direction of the first moving body. By the way, on the upper surface of both ends of the first moving body 4, there are two pulleys 21.
22, 23, and 24 are rotatably supported independently, and a pair of left and right pulleys 2 is mounted on the upper surface of the second moving body 20.
5.26 is rotatably supported. In addition, another motor 27 is installed at a position closer to the platen roller 10.
The motor 27 is provided with pulleys 28 and 29 in two stages, upper and lower. Also, this motor 27
On the other end side of the platen roller 10, parallel to and facing the platen roller 10, pulleys 30 and 31 in two stages, upper and lower, are rotatably supported. A single piece of wire 40 using these pulleys
is strung up. Assuming that one side of the wire 40 is 40a and the other side is 40b, the wire 40 is stretched in the following manner.

That is, as shown in FIG. 3, the wire 40 on the 40a side is wound around the pulley 23, then around the pulley 26 and then returned to its original position. 27 several times, and is then wound around the opposite pulley i0. This wire 40 extends parallel to the platen roller lO, is wound around the pulley 30, then around the pulley 21 on the first moving body 4, and then around the pulley 25 on the second moving body 20. After that, return to normal,
It is wound around the pulley 22 to form an end portion 40b.

The ends 40a and 40b of the wire 40 are fixed to the casing side under tension.

Incidentally, on the second movable body 20, there are provided a light emitting source 32 forming an imaging means for the original 2, and a lens 33 consisting of a short focus cylindrical lens, a light condensing lens, or the like. Further, below the lens 33, as shown in FIG.
A reading sensor 34 consisting of a CD, a contact sensor, etc. is provided.

Therefore, when the motor 27 rotates, the ends 40a and 40b of the wire 40 are fixed depending on the direction of rotation.
The movement of the wire 40 moves the second moving body 20 to the first moving body 4.
The document is moved along the guide rail 4a, receives reflected light from the document, and reads the image. In other words, the reading sensor 34 has a plurality of reading elements arranged along the Y direction, and each reading element reads scanning image information decomposed at a constant density from the document surface in correspondence with bits under imaging, and converts it into an electrical signal. It is designed to be converted to .

On the other hand, an endless wire 35 is stretched between an upper pulley 28 attached to the motor 27 and a pulley 31 disposed opposite thereto. Alongside this, two upper and lower guide shafts 36 and 37 are arranged in parallel.
A carriage 38 is slidably fitted into these.

: The carriage 38 is connected to the middle of the endless wire 35.

The wire 35 and the carriage 38 are connected in a direction opposite to the running direction of the wire 40, as shown by the arrow in FIG. By employing this type of connection structure, the second movable body 20 and the carriage 38 can move in the same direction. In addition, the wire 40
When is run at a speed of ``2'' via the motor 27, the second moving body □O moves at a speed of ``1'' due to the principle of a movable pulley. To move the carriage 38 at the same speed, pulleys 28.
29.30.31 have different diameters, wire 35 is rl
Is it necessary to fix the speed to J, that is, the speed in the direction of the second moving body 20□? □ ... A recording pad 39 is provided on the key 9/fuji 38, and when the motor 27 is rotated, the carriage 38 is moved. This is synchronized with the movement of the second moving body □20.

It should be noted that what is indicated by the reference numeral 41 located behind the recording paper 14 is a platen.

Next, the operation of this embodiment configured as above will be explained. '' □ First, the first moving body 4 is moved to the starting point, that is, the left end, as shown in FIG. 1, and the carriage 38 and the second moving body 20 are returned to the home position. Rotate the platen roller lO clockwise □ using the operating knob that does not have a
Only can be rotated independently: □. At this time, the first moving body 4 does not operate.

In this state, the original 2 is placed face down on the glass plate 3.

Next, when the start button (not shown) is pressed, the motor 27 starts rotating, and as shown in FIG. The document 2 is moved in the direction shown by the arrow, and the document 2 is read from one end to the other end with a width of Δl. The carriage 38 is moved via the wire 35 in synchronization with the second moving body 20 . The image information read by the reading sensor 34 is converted into an electrical signal and sent to the recording pad 39 of the carriage 38 via a control device (not shown), so that the read image can be immediately recorded.

After the second movable body 20 is moved forward in this manner and the image is read with a width of Δ1, the motor 27 is reversed and the second movable body 20 and the carriage 38 are moved forward as shown by the dashed arrow. It is restored and returned to its original state. Next, motor 19
is rotated and the first movable body 4 is moved in the direction of the solid line Y by 61 minutes to perform sub-scanning, then the width of Δl adjacent to the document area read last time is read, and recording is performed in the same manner as described above. . The movement of the first moving body 4 for 61 minutes is equivalent to the movement of the second moving body 4.
This can also be done when the moving object returns.

The above-mentioned operations are repeated to perform reading and recording operations over the entire surface of the document 2, and when all operations are completed, the first
and returns the second moving body 4.2o and carriage 38 to their home positions. The operation of restoring the first movable body to its home position after reading all the reading areas can be done by rotating the sub-scanning motor 19 in the reverse direction, but at this time the one-way clutch is in a free state, and after recording It is possible to prevent the paper from moving backwards and maintain the stopped state.

If necessary, during the main scanning backward movement of the second moving body 20, the first moving body 4 is sent one pitch in the Y direction and then a reading operation is performed, and the recording radar 39 is used to perform the reading operation during the backward movement of the second moving body 20. A recording operation may also be performed. Further, to feed the recording paper 14, the motor 19 is rotated in synchronization with the recording operation by the recording head 39, and the platen roller 10 is rotated clockwise.The one-way clutch 13 is turned on, and the recording paper 14 is fed by one line. be able to.

By the way, although the above-mentioned embodiment shows a structure in which image information is read and recorded simultaneously, a structure in which read image information is temporarily stored in a memory may be adopted. In such a case, there is no need to synchronize the second movable body 20 and the carriage 38, so the connection state between the carriage 38 and the wire 35 is not limited to the above-described structure. It may be combined with the above-mentioned 35 wires moving in the opposite direction. Furthermore, although the above-described embodiment has been shown as a structure for reading and recording at the same magnification, it is also possible to perform enlargement and reduction recording by making the pulley diameters different.

Further, the document is not limited to a sheet-like document, and information can also be read from a book or three-dimensional object.

As the recording method, various methods such as a thermal method, a thermal transfer method, or an inkjet method can be adopted.

In addition, the pulleys 21 and 22 provided on the first moving body 4
and 23 and 24 may be provided separately on the left and right sides as shown in FIG. 4 instead of being provided on the lower two levels. Further, the wire functions as a traction member, and may be made of a material such as metal or plastic, and a commonly used toothed belt or the like may also be used.

[Effect] As is clear from the above description, according to the present invention, a second moving body that performs main scanning for image reading is provided on a first moving body that performs sub-scanning, and this second moving body The structure uses a single drive source to drive the body and the carriage on which the recording head is mounted, which simplifies the drive mechanism and reduces the number of parts, making it possible to create small, thin originals that are placed in a stationary state. It is possible to provide an apparatus capable of reading images from a low cost.

[Brief explanation of drawings]

Figures 1 to 5 illustrate an embodiment of the present invention.
Fig. 1 is a perspective view of the main parts, Fig. 2 is an overall perspective view, Fig. 3 is a perspective view of the drive system, Fig. 4 is an explanatory diagram of the pulley arrangement, and Fig. 5 is a vertical cross-sectional side view of the main parts. . A 2... Original, 4... First moving body, 9, l
1, 21, 22, 23, 24, 25.26.28.2
9.3o, 31...Pulley, 10...Platen roller, 12.35.40...Wire, 14...Recording paper, 19.27...Motor, 38...Carriage, 39... ...recording head.

Claims (1)

[Claims] 1) A first moving body movable in the sub-scanning direction;
a second movable body that is slidably disposed on the movable body and is movable in the main scanning direction and is equipped with an image reading means for reading image information of a document; and a recording head that records the read image information on a recording medium. What is claimed is: 1. An image reading and recording apparatus comprising: a carriage on which a recording medium is mounted; and a conveying means for transporting a recording medium, the second moving body and the carriage being driven by the same drive source. 2) The image reading and recording apparatus according to claim 1, wherein the first movable body and the recording medium transport means are driven by the same drive source. 3) The image reading and recording apparatus according to claim 2, wherein the recording medium transport means is provided with a one-way clutch that transmits power only in the direction in which the recording medium is fed.