JPS62120774A - Copying device - Google Patents

Abstract

PURPOSE:To copy an original with a large size by providing a reader moved on the original face in the main scanning direction and a recorder moving on the recording paper in the main scanning direction so as to move the reader and the recorder synchronizingly in the main scanning direction. CONSTITUTION:A copying machine main body 3 is placed to an original 2 on a table 1. The reader 13 and the recorder 14 are moved in the direction Z synchronizingly by moving a support 12 along a slide shaft 15 extended in the direction Z. Then an exposure lamp 17 exposes the face of an original 2 and a reflected optical image from the original 2 is read by using a read element 19 through a lens 18. The recorder 14 moves the recording paper 10 on a roller 5 in the direction Z. A motor 9 drives the machine main body 3 in the direction X as the self-movement to read the picture on the entire face of the original 2 and to reproduce and record it on the recording paper 10.

Description

[Detailed description of the invention] Technical field The present invention relates to a copying apparatus.

BACKGROUND TECHNOLOGY Conventionally, copying devices (original image recording devices) include the most common electrophotographic copying machines and printers that digitally read and record document images using a reading element such as COD.
There are axis recording devices, etc.

In any case, when considering large originals, these devices require an optical system that is larger than the object to be copied, so the devices are extremely large.
It cannot be made portable.

On the other hand, in recent years, copying machines have become more personalized, and hand-held copying machines have also appeared. These devices are designed to be compact and lightweight, so they cannot copy large originals.

In other words, with conventional copiers, it is not possible to make the device smaller, lighter, or lower in cost when considering the ability to copy large originals. It has the advantage and disadvantage that it cannot be done.

Purpose The present invention was made in view of the above points.
To provide a copying device having a lightweight and inexpensive configuration and capable of making copies of even large-sized originals.

Structure In order to achieve the above object, the present invention provides an apparatus main body that moves relatively in the sub-scanning direction on the document surface, and also provides a recording paper that is conveyed in the sub-scanning direction and is mounted in the apparatus main body. a reading device that moves on the document surface in a main scanning direction orthogonal to the sub-scanning direction; and a recording device that moves on the recording paper in the main scanning direction; The reading device and the recording device are moved in the scanning direction, and each time the reading device and the recording device are stopped, the reading device and the recording device are moved synchronously in the main scanning direction, and the recording device records an image of a predetermined width read by the reading device on the recording paper. It is something.

Hereinafter, one embodiment of the present invention will be described based on the drawings. FIG. 1 shows an outline of the basic configuration of the present invention, and in the drawing, the left and right X direction is the sub-scanning direction, and the Z direction, which is the front and back direction of the paper orthogonal to the X direction, is the main scanning direction. First, a document 2 to be copied is placed on a table 1 such as a desk. A copying apparatus main body 3 is provided for the document 2 on the table 1 as described above. Rollers 4 and 5 are provided at the lower part of the apparatus main body 3, and are provided so as to move by themselves in the X direction on the surface of the document 2. That is, these rollers 4 and 5 are connected by a power transmission means such as a chain or a belt, and are driven by a motor 9 connected to the roller 4 via a pulley 6, a belt 7, and a motor tab 8. . Further, a roll of recording paper 10 is set in the main body 3 of the apparatus, and is provided so as to be drawn out sequentially in the X direction using the roller 5 as a platen roller. A cutter device 11 is provided for cutting the rolled recording paper 10 into a predetermined length.

On the other hand, a reading device 13 and a recording device 14, which are integrally supported by a support body 12, are provided inside the device main body 3. These reading devices 13 and recording devices 14
This means that the support body 12 moves synchronously in the Z direction by moving along a slide shaft 15 extending in the Z direction. Such movement is performed manually or by a motor (not shown) or the like. Here, the reading device 13 reads the document 2.
It moves while facing a surface, and is entirely covered by a casing 16. Then, the exposure lamp 17 exposes two sides of the original, and the reflected light image from the original 2 is read by the reading element 19 through the lens 18. The reading element 19 is typified by a CCD image sensor, but it may be one in which one or more rows of elements are arranged in a dot shape, and each reading width is 08 minutes, for example. Therefore, if the moving length of the reading device 13 in the Z direction is Zl, by moving the reading device 13 in the Z direction for 20 minutes, a document image with an area of n, xz, is read in the main scanning direction (Z direction). It will be done. On this occasion,
The above-mentioned exposure lamp 17 may be one that sequentially exposes two sides of the document as the reading device 13 moves in the Z direction, or one that exposes an area of Q, xz, at a time, and is set as appropriate. Alternatively, exposure illumination may be performed using an LED array or the like.

Next, the recording device 14 moves in the Z direction over the recording paper 10 on the roller 5, and since thermal paper is used as the recording paper 10, a thermal head 21 is placed at the lower end of the recording head main body 2O. 10. Similar to the reading element 19, this thermal head 21 has heat generating parts arranged in a dot shape, and the recording width Q is set approximately equal to the reading width Ω1. For example, if the reading width of the reading element 18 is 8 lines/mm, the heat generating portion of the thermal head 21 is also configured with the same density. However, depending on the signal processing method, it is not necessary to make the density of the reading element 19 and the thermal head 21 exactly the same, and it is sufficient if the width is Ω, =Q□. or,
This condition also assumes a general same-size copy, and the write width Q2 is made larger or smaller depending on the magnification during the variable-size copy of enlargement or reduction. Recording on the recording paper 10 by the recording device 14 is performed on the original image read by the reading device 13, and the image signal read by the reading element 19 is converted by the signal processing circuit 39 and sent to the thermal head. 2
given to 1.

In such a configuration, the operation of copying the image of the document 2 onto the recording paper 10 will be described. First, not only the original 2 but also the apparatus main body 3 and the recording paper 10 are in a stopped state. In this state, the reading device 13 and the recording device 14 move in the Z direction in synchronization. As a result of this operation, the reading device 13 reads the two images of the document over the length Z by the width Q1. In this case, it is determined by the performance of the reading element 19, the signal processing method, etc. whether to read in a straight line with the reading width Ql or read in the Z direction while sequentially scanning the reading width Ω1. In parallel with such a reading operation, the original image signal is sequentially applied to the thermal head 21 moving on the recording paper 10 and generates heat, so that the original image is reproduced and recorded on the recording paper 10.

However, negative-positive recording can also be performed on the recording paper 10 by reversing the signal processing method. In this way, when main scanning for 78 minutes is performed, the image of the original document 2 is read for Q, xz, minutes, and this is reproduced and recorded on the recording paper 10 by the thermal head 21.

Next, the motor 9 moves the device main body 3 1 in the X direction.
The running movement is performed over a length approximately equal to Q. Since this self-propelling is performed by the rollers 4 and 5, when the main body 3 of the apparatus is moved, the recording paper 10 is also pulled out by the roller 5 by a length Ω1. Then, the motor 9 stops, and the device main body 3
Then, the recording paper 10 comes to a halt again. In this state, the reading device 13 and the recording device 14 located at the innermost part in the Z direction perform the reading operation and recording operation as described above while moving toward the front side in the Z direction.

Thereafter, such operations are sequentially repeated to read the image of the entire surface of the document 2 and reproduce and record it on the recording paper 10.

When all recording is completed, the recording paper 10 is cut into a predetermined length by the cutter device 11.

In this way, according to this embodiment, the Z direction (main scanning direction)
Since it is easy to configure the length according to the size of the document 2, and it is easy to configure the length according to the necessity, the overall configuration of the device main body 3 is small, lightweight, and compact. , even in the case of a large-sized original 2, the image can be recorded and reproduced on the recording paper 10.

Incidentally, when performing a variable magnification copy, it may be carried out using a normal variable magnification method using a lens, but for example, if the variable magnification is 0.
In the case of a reduced copy of No. 5, the reading length in the Z direction by the reading device 13 is 1, while the writing length in the Z direction by the recording device 14 is 0. 5, it is possible to perform irregular reduction copying in which the writing density is doubled. or,
Reduction in the sub-scanning direction can be achieved by applying signals to the thermal head 21 of the recording device 14 only to dots corresponding to 1/2 of the recording width Q8. In this embodiment, the moving operation of the reading device 13 and the recording device 14 in such an operation is also included as a synchronous operation.

Next, a modification will be described with reference to FIG. 2, in which a reading head 23 as a reading device and a recording head 24 as a recording device are directly connected by a sheet-like recording paper 22 using something like a support. This assumes a case where this is not possible. In this case, motor pulley 2 connected to motor 25
6 and a part of the drive wire 28 stretched between the plurality of pulleys 27a to 27e are connected to the reading head 23 and the recording head 24, respectively, so that the reading head 23 and the recording head 24 are synchronously moved in the Z direction. It is something that makes you

In other words, by using the drive wire 28, any arrangement can be accommodated. According to such a driving wire 28 method, the reading head 23 and the recording head 24 can be moved in the same direction as shown in the figure, but by changing the tension state of the driving wire 28, these can be moved. The reading head 23 and the recording head 24 can also be moved in opposite directions in the Z direction. However, in this case, it may be necessary to change the signal processing method, the moving direction of the recording paper 22, etc. as appropriate.

Further, in this embodiment, a method has been described in which recording is performed using thermal head 21 using thermal paper as the recording paper 10.22, but plain paper, film paper, nonwoven fabric, etc. can be used as appropriate as the recording paper. Figure 3 shows recording paper 29 made of plain paper.
A modification of the recording device 30 using the following is shown. In this case, a transfer method using a transfer tape 32 together with a recording head 31 is adopted, and the transfer tape 32 is stretched between a pulley 34 and a pulley 35 connected to a tape winding motor 33, and is stretched in the Z direction. It is located in here,
As shown in FIG. 4, the transfer tape 32 has a two-layer structure consisting of a base layer 32a made of a heat-resistant film and an ink layer 32b.
By applying heat (or pressure) to the base layer 32a, it is peeled off from the base layer 32a and transferred and recorded onto the recording paper 29.

The operation of the recording device 30 in this case will be explained. First, during recording, the roller 5, the recording paper 29, and the transfer tape 3
2 is in a stopped state. Therefore, while the recording head 31 moves in the Z direction, the heat generating section 31a generates heat in response to the image signal from the reading device to perform the recording operation over the length Z#. Next, the recording head 31 is stopped, the recording paper 29 is fed by the roller 5 a predetermined length Ql) in the This prepares for recording the primary main scanning line.

Note that at this time, the recording head 31 and the transfer tape 32 may be moved integrally. However, in this case, it is necessary to move the recording head 31 and simultaneously wind up the transfer tape 32. In this case, for example, recording is possible only when the recording head 31 moves from the front side to the rear side in the Z direction, and only a return operation is performed in the reverse direction.

Further, when the recording paper 29 is used, recording may be performed using a recording device of an electric recording method. This is because the base layer 32a portion of the transfer tape 32 described above is formed as a conductive layer, and the heat generating portion 31a portion of the recording head 31 is configured as a needle-like electrode, and by passing current from this needle-like electrode, the base layer is localized. The ink is transferred to the recording paper by heating the recording paper.

Next, FIG. 5 shows a modification of the arrangement of the reading device 36 and the recording device 37. In this modification, the recording device 37 is arranged on the upper surface 38a of the unit support 38 to which the reading device 36 is attached, and the recording paper 10 is
9, a pressure plate 40 is provided on the recording device 37 portion. According to such an arrangement, it is possible to achieve further compactness. Note that the recording device 37 may be provided not only on the upper surface 38a of the unit support 38 but also on the side surfaces 38b, 38c, etc., for example.

Effects Since the present invention is configured as described above, it is possible to copy large-sized originals with a small, lightweight, and inexpensive configuration by simply ensuring the movement length in the main scanning direction. It can be used in a wide range of applications.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a schematic front view showing the basic configuration, FIG. 2 is a schematic perspective view showing a modification, and FIG. 3 is a modification when using plain paper. FIG. 4 is a schematic side view showing an example, FIG. 4 is a sectional view showing the recording operation, and FIG. 5 is a schematic front view showing a modification of the arrangement. 2... Original, 3... Device main body, 10... Recording paper,
13...reading device, 14...recording device, 22...
・Recording paper, 23...reading head (reading device), 2
4... Recording head (recording device), 29... Recording paper,
30... Recording device, 36... Reading device, 37...
・Recording device comparison person Ricoh Co., Ltd. −°
::Tsu n1 Figure 33 Procedural Amendment Band (spontaneous) February 25, 1986 Patent Application No. 60-260800 2 Name of invention Copying device Address 1-3-6-4 Nakamagome, Ota-ku, Tokyo, Agent
Person: 107 Name: 7211 Patent Attorney Aiki
Clear [T1-5, date of amendment order Japanese Patent Application No. 1983-260800 Regarding this application, after "Reproduced" on page 8, line 16 of the specification, "However, in the case of figures, is a mirror image, so it is preferable to use transparent thermal paper or use the ribbon transfer method using transfer tape, which will be described later.In addition, when using opaque ordinary thermal paper, the sensitivity between roller 5 and recording paper 10 is It is necessary to reverse the direction in which the device main body 3 moves by intervening a roller or the like.

Claims (1)

[Claims] A device main body that moves relatively on the document surface in the sub-scanning direction is provided, and a recording paper that is conveyed in the sub-scanning direction is provided, and the device is mounted in the device main body and moves on the document surface in the sub-scanning direction. A reading device that moves in the orthogonal main scanning direction and a recording device that moves on the recording paper in the main scanning direction are provided, and the device main body and the recording paper are intermittently moved in the sub-scanning direction, and each time the device is stopped, the reading is performed. A copying apparatus characterized in that the apparatus and the recording device are moved synchronously in a main scanning direction so that the recording device records an image of a predetermined width read by a reading device on recording paper.