JPS60141072A - Copying device - Google Patents

Abstract

PURPOSE:To miniaturize the device and to reduce influence upon scanning irregularity at the time of scanning by providing reading and recording heads and by constituting in such a way that the direction of either main scanning of subscanning will be reverse between a reading head and a recording head. CONSTITUTION:A recording head 10 and a reading head 1 are fixed on a main scanning timing belt 13, which is driven by a main scanning pulse motor 16, by a fixing member 14, etc. At the time of main scanning, the reading head 1 reads out originals while moving in the direction of an arrow (b). The recording head 10 shifts in the reverse direction [an arrow (c)] at the same speed as that of the reading head 1. In terms of reading signals, signal processing such as dither operation and amplification is executed if necessary, and the operated signals are inputted to a reading head 8. Carridges 17 and 17' of a main scanning unit move smoothly on subscanning rails 18 and 18', and one carriage 17' is fixed on a subscanning timing belt 20 by fixing members 21 and 21'. After main scanning has been completed, a pulley 19 shifts in the direction of an arrow (d) by a pulse motor by the prescribed distance, subscans the main scanning unit in the direction of an arrow (e) and stops.

Description

[Detailed description of the invention] The present invention relates to type document reading and scanning type recording devices.

Conventionally, this type of device is used in facsimile machines,
One type is to move the document in the sub-scanning direction while reciprocating the document reading head, which consists of a photoelectric conversion element such as a photodiode array and an optical system such as a lens, in the main scanning direction perpendicular to the sub-scanning direction. to read the original. This type of device is used to scan sheet-like originals, and has the disadvantage that it is difficult to operate and cannot be used when reading fixed originals, such as books, for example.
Such devices are read-only and cannot read and copy at the same time. As a type of copying machine,
The entire width of the paper is imaged on a photoelectric conversion element, the reading head scans the paper surface, the image signal obtained by the cracking is scanned onto the electrophotographic photoreceptor with a laser beam, etc., and the image is developed.
Some copy images are obtained through a series of steps such as transfer to recording paper and fixing. However, in this type of device,
In order to form an image over the entire width of the paper, in addition to lenses with a long focal length, mirrors and other equipment are required.

Since processes such as transfer and fixing are required, the device becomes larger and the cost inevitably increases.

The present invention improves the disadvantages of writing and provides a document reading and recording device that is small and simple in structure.

The structure and operation of the present invention will be explained below with reference to the accompanying drawings showing one embodiment of the present invention.

FIG. 4 is a perspective view showing the configuration of a scanning type reading and recording device according to the present invention. The reading head unit 1 is slidably mounted on the reading head rails 2 and 2', and is equipped with a lamp 8 for illuminating the original and a photoelectric conversion element such as a solid-state image sensor such as a CCI (CCI) for converting the original image (see FIG. 2). It is composed of a lamp 4 and the like that forms an image. Reference numeral 5 denotes a flexible conductive wire bundle for supplying power to the lamp 8, power to the photoelectric conversion element, and transmitting image signals and the like. A carriage 6 for transporting the recording head is slidably mounted on the recording head rail 7.7'. The recording head 8 is fixed on the gear ridge 6 for transporting the recording head, and is equipped with recording means such as an on-demand type inkjet head, and 9 is an electrical board consisting of a transistor array for driving the recording head. 10 is a carriage 6 for transporting the recording head, and a recording head 8
and a recording head section composed of an electrical board 9,]1
is a flexible conductive wire bundle for transmitting image reading signals, recording head, driving power, etc., which goes up to the connector and is connected to the recording head substrate 9. Both the recording head section 10 and the reading head section 1 are connected to a main scanning timing belt 13.
It is fixed by a fixing member 14 or the like. The timing belt 18 is stretched between pulleys 15° and 15', and is moved by the rotation of a main scanning pulse motor ]-6. During main scanning, the pulse motor rotates in the direction of arrow a. Therefore, the reading head section 1 reads the original document while moving in the direction indicated by the arrow. At this time, the recording head section 10 moves at the same speed in the opposite direction (arrow C) to the moving direction of the reading head section, and the read signal is amplified and undergoes signal processing such as teaser processing as necessary. 8 is input. In other words, you can record while reading.

After moving the required distance corresponding to the original, the main scanning nokurusu motor 1 (i rotates in the opposite direction to the arrow a, and the reading head J and the recording head IO return to their initial positions.1 .7.17' is a carriage of the main scanning unit that slides on the sub-scanning rails 18° and 18'.One carriage 17' is stretched between a pulley '9' which is rotationally driven and a rotating roll 19'. The fixed portion 1-14' 21 is attached to the sub-scanning timing belt 20.

21-'. After the main scanning is completed, a pulse motor (not shown) moves the pulley 19 a predetermined distance in the direction of arrow d (approximately the same distance as the image d read during main scanning).
The main scanning unit moves in a sub-scanning direction in the direction of arrow e, and then stops. Here, the pulse motor 6 rotates again to perform main scanning. By repeating main scanning and sub-scanning in this manner, the entire document image area is scanned, and after copying is completed, the sub-scanning pulse motor rotates in the reverse direction to return the main scanning unit to its initial position.

FIG. 2 is a conceptual diagram of a main scanning unit section consisting of a reading head section that scans the document surface and a recording head section that scans the recording paper surface. In the figure, the same numbers as Figure 1 indicate parts with the same function. 1 is the reading head section and the document table glass 28
An image 25 of the upper original 24 is projected onto the solid-state image sensor 22 through the lens 4 . 22 is a linear image sensor in which a plurality of pixels are arranged in the direction of arrow e, which is the sub-scanning direction. lO is the recording head section,
The recording paper 28 is fixed on the recording paper fixing and holding member 27, and a recording image 29 having the same width as the image 25 read by the recording head 8 is recorded. After the main scanning is completed, the main scanning unit moves in the direction of arrow e by approximately the same distance as the scanned image 1],
The original image @30 is moved to a reading position, and at the same time as the reading is performed, a recorded image 81 is recorded on the recording paper. By repeating this process, the original image is sequentially recorded on the recording paper. In this way, the reading position of the reading head for document "2" is
It always corresponds to the recording head position on the recording paper corresponding to the original. Therefore, even if a slight mechanical positional change occurs in the main scanning and sub-scanning, the recording position shift, which is the most serious problem of image quality deterioration, does not occur.

FIG. 3 illustrates the concept of the style of the sub-scanning moving means of another embodiment of the sub-scanning means, and all unrelated parts are omitted from the illustration. The main scanning unit 82 carries a reading head section, a recording head section, etc., and slides on a rail (not shown) in the same manner as in FIG. A sub-scanning wire 85 fixed to both sides 33.84 of the main scanning unit i. has parts A and B parallel to the two sub-scanning rails, and pulleys 36.37, 88.85 fixed to the main body. 89 as shown in the figure. Reference numeral 40 denotes a rotating roll around which the wire 35 is wound, and is rotated in the direction of arrow F during sub-scanning by a pulse motor (not shown). At this time, the main scanning unit moves in the direction of arrow G.

FIGS. 4 and 5 show other embodiments of the main scanning means, and for the sake of clarity, they are shown in format diagrams with unrelated parts omitted, similar to FIG. 8. In FIG. 4, the small 0 has a main scanning unit, a reading head section 1, a recording head section 10, etc. mounted thereon. 42.4'8° 44.45 is main scanning unit 4
0 is the fixed pulley and 46.47 is the pulley fixed to the read head. 48.4.9 is a pulley fixed to the main body, and 50 is a roll rotated by a main scanning pulse motor (not shown). Reference numeral 41 denotes a main scanning wire with both ends 51 and 52 fixed to the main body, which is stretched between the above pulleys as shown in the figure and wound around the main scanning roll 50, and by this rotation (in the direction of arrow G) The reading head moves in the direction of arrow H.

The reading head section 1 and the recording head section 10 are fixed to a belt 55 stretched between the grooves 58 and 54 fixed to the main scanning unit, and when the reading head section 1 moves, the recording head section 101d moves in the opposite direction. Move in the direction of the arrow ■.

FIG. 5 shows another embodiment in which both the recording head section and the reading head section are wired.

The recording head section 10 slides on rails 58 and 59 fixed to the main scanning unit 40. The reading head 1 slides on the rails 56,57. For main scanning of the recording head section, pulleys 60, 61, 62, and 68 are fixed to the main scanning unit, and pulleys (38, 09 are fixed to the reading head section 1).

Pulley 64+ 65.66 for recording head, section
67 is fixed to the main scanning unit, and pulleys 70 and 71 are fixed to the recording head section. 72 is a reading head main scanning wire, which is fixed to the main body via each reading head wire of the main scanning unit.
75 and both ends 76.7 of it via the main scanning roll 74
It is fixed mainly at 7.

Reference numeral 78 denotes a recording head main scanning wire, and its both ends 8], , 82 are fixed to the main body via the recording head pulley of the main scanning unit, a pulley 79, a main scanning roll 74, and a pulley 80. Here, the way the wire is wound around the main scanning roll 74 is different for the recording head and for the reading head, as shown in the figure. Therefore, when the roll 74 rotates in the direction of the arrow, the reading head moves to the right in the figure, and the recording head moves to the left in the figure.

By stretching the wires as shown in FIGS. 4 and 5, the main scan moves independently without being affected by the sub scan.

5 and 7 show still another embodiment, in which the main scanning direction of the recording head and the reading head are the same, and the sub-scanning direction is opposite.

FIG. 6 is a format diagram showing the sub-scanning means. Reference numeral 84 denotes a carriage for the main scanning unit of the reading head on which the reading head section is mounted, and slides on rails 85 and 85'.

Reference numeral 86 denotes a carriage for a main scanning unit of a recording head having a recording head section, which slides over the sill, 8th foot, and 8th foot. Both main scanning units have a timing belt 88
Fixed. The timing belt 88 has a roll 90 and a pulley 9 rotated by a sub-scanning pulse motor 89.
1, and is moved in the direction of arrow J by the rotation of a motor 89. At this time, the main scanning unit for the reading head moves in the direction indicated by the arrow, and the main scanning unit for the recording head moves in the direction indicated by the arrow, which is the opposite direction to the arrow.

FIG. 7 shows a formal diagram of the main scanning means, with the reading head 92
The recording head 93 slides within the main scanning unit 84, and the recording head 93 slides within the main scanning unit 86. The way the wire is stretched in FIG. 7 is almost the same as that in FIG. 5, so the details are omitted; the difference is the way the wire is wound around the rotating roll 9 by the main scanning pulse motor. As shown in the figure, the recording wire 1 and the reading wire are wound in exactly the same direction. Therefore, as the roll rotates in the direction of the arrow, both the recording head and the reading head move downward in the figure.

In addition to the above-mentioned reading sensor, an amorphous/recon image sensor or the like can also be used, and in short, any image sensor that can be applied to the above-mentioned scanning means may be used. In addition, as an example of a recording head, an inkjet multi-head is used, but this also uses a thermal transfer force type due to the installation of a thermal ribbon, etc., or a thermal recording method, etc. due to the use of thermal recording paper. Needless to say.

Furthermore, the recording head can be changed to, for example, cyan, maze/maze.

Four colors, yellow and black, are arranged and read.RAD also uses corresponding color separation filters, and colorization is also ``duplicate''.

As described above, the present invention uses a means in which the reading head and the recording head are repeatedly scanned in the main scanning direction and the sub-scanning direction respectively, and one of the scanning directions of the main scanning direction and the sub-scanning direction is opposite between the reading head and the recording head. By this configuration, not only can the copying device be made smaller, but also the influence on scanning unevenness during scanning can be reduced, and by lengthening almost only the rails for main scanning and sub-scanning, there is no large increase in cost. A scanning method is provided that allows the original size to be enlarged to a large screen, and has the effect of easily responding to colorization.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the configuration of a copying apparatus according to the present invention;
FIG. 2 is a schematic diagram of the main scanning unit, FIG. 3 is a diagram of the configuration of another embodiment of the sub-scanning means, and FIGS. 4 and 5 are diagrams of the configuration of another embodiment of the main scanning unit. , FIGS. 6 and 7 show still another embodiment of the sub-scanning means and the main scanning means, respectively.
It is a 14 format diagram. ]-...Reading head section 2.2'...Reading head rail 6...Recording head carriage 7.7'...Recording head rail 8...Recording spatula 1'9... Electrical equipment board 10...Recording head section Jl...Conductive flux], :3...Timing belt], 5115'...Pulley 16...Pulse motor 1.7, 1.7'...Main Carriage 1 for scanning unit
．． 8, 1.8'... Hanging scanning rail 19... Drive pulley 19'... Rotating roll 20... Timing belt 22... Image sensor 28... Recording paper 82... Main scanning Unit 35... Sub-scanning wire: 3 (t~89...) - Lee 4.0... Rotating roll 441... Main scanning wire 4.2. ~4,5...Pulley 46.47...Read head boolean 48.49.
・Fixed pulley 50 ・Drive roll 58.54 ・Main scanning unit υ-55 ・Belt 56.57 ・Reading rail 58.59
...Recording head rails 60-68...Pulleys 68, 69...Reading head pulleys 70, 71...
・Recording head boot leaf 2...Reading head main scanning wire 78.75...Fixed pulley 74...Drive roll 78...Recording spatula)・Main scanning wire 79.80・
...Pulley 84...Reading head main scanning gear ridge 85.85'
...Rail 86...Recording head main scanning galino/87.87'.
...Rail 88...Timing helmet 89...Pulse motor 90...Drive roll 9)]...Pulley 92...Reading head 98...Recording head 94..., drive roll Fig. 2 Figure 3

Claims (1)

[Claims] a reading means for simultaneously or sequentially scanning and reading unit lengths obtained by dividing the length of the surface to be read into an arbitrary number of equal parts; and a reading means for simultaneously or sequentially scanning and reading unit lengths obtained by dividing the length of the surface to be read into an arbitrary number of equal parts; a first reading scan that scans the unit length of the reading surface in one direction; and a first scan that scans the recording notebook material in the one direction for the unit length. a recording scan, a second reading scan and a second recording scan in which the surface to be read and the surface to be recorded are sequentially scanned by the unit length in another direction perpendicular to each of the first scanning directions; and the scanning direction of reading and recording is opposite in one of the first scanning pair and the second scanning pair of recording, and the scanning direction of reading and recording is the same direction in the other scanning pair. A copying device characterized by: