JPS58107778A - Both side recorder - Google Patents

Abstract

PURPOSE:To attain both side recording clearly with fidelity without using a storage device, by individually reading pictures on left and right pages of a book type original at a glance. CONSTITUTION:With a book type original 1 placed closing on a platen 2, reading units 3, 4 are horizontally moved toward the arrow along slide shafts 6, 7 while keeping the units at a reading interval l, for the scanning of a picture of the original 1. The platen 2 of the reading means is formed into folded shape having an angle theta, and the reading units 3, 4 are provided in opposition to each slope of the units 3, 4. Since the reading position of the units 3, 4 is shifted apart from the same interval as the bus of the storage head, the both side recording is done without using the storage means (memory).

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a double-sided recording device particularly suitable for recording both sides of printed documents such as books and thick ledgers.

Many single-sided recording devices have been proposed that perform recording on both sides of recording paper, but in these devices, the platen (original table) for reading images is a horizontal flat plate. When a book-type document is placed open, there is a considerable gap between the spine of the document and the platen. This gap increases according to the thickness of J[s, so if the manuscript is somewhat thick, the image of the character surroundings near the open spine will be curved and distorted, making it impossible to record clearly or at all. This causes an inconvenience due to the so-called back-opening effect. In addition, in the above-mentioned recording device, since the reading system does not correspond to the left and right pages of the original document individually, in other words, the entire area on the document table is read by one reading system, so the reading system does not correspond to the left and right pages of the original document. When double-sided recording is performed in the same format, there is a problem in that it is necessary to sequentially read the left and right pages one page at a time and temporarily store the image of one single-sided page in a storage device (memory). .

It is an object of the present invention to eliminate such conventional drawbacks, and to separate images of the left and right pages of a book-type manuscript at a time, respectively, with Kv1. and without using a storage device, MingW#,
To provide a double-sided recording device capable of faithfully recording both sides.

The present invention will be described in detail with reference to 11 below.

Figure 1 shows an example of the present invention. Figure 2 shows an embodiment of the present invention.
1 shows the internal configuration of the reading means of the recording device. In No. 1-1C, l is a book-type original, - is a platen made of a transparent plate, JX and da are g-taking units, monthly 1, and a reading unit mounting base that connects the two units Jg and da together; The slide shaft is a slide shaft that moves the reading unit 3 and the plate parallel to the vertical direction of the image plane of the original l (in Fig. 1, the direction of force perpendicular to the paper plane) through the reading unit dispersion stand S. be. The platen λ is bent approximately from the center in the direction of both reading units 3 and DA at υT constant S degrees 0 to form a mountain shape,
An aS unit J or a bower is arranged to face each of the left and right inclined surfaces of the platenco so as to be relatively movable in parallel. The angle θ is J [back opening of draft l/& and platen]'1f
fttJ& are in close contact with each other, and the original l and the surface of the platenco are in close contact with each other. Generally, the angle of 0 is determined by considering the thickness of the original, ease of setting the original, and prevention of the original from slipping.

It is selected in the range of 90°〈0≦/f O''. Therefore.

It is more preferable to use hinge means or the like for the platenco to make the angle 0 variable. ; Alternatively, only one side of the platen λ may be made horizontal. Furthermore, if a stopper (not shown) is provided on the upper surface of the platen λ to prevent the original sl from sliding down along the inclined surface, it is possible to read the original sl accurately.

Figure 2 is a side view of Figure 1, where %j/
and DA1 are rod-shaped light sources using halogen lamps, 32~3DA and DAKO~Mari are folding mirrors, 3S and DAS are imaging lenses, J6 and 416
is a one-dimensional image sensor such as a can-line image sensor, which is composed of a large number of light-receiving elements arranged one-dimensionally. 'f&
The reading positions of m units 3 and q are moved relative to the platen during image reading, but reading unit 3'
reading position (for example, A) and reading position of reading unit Hiro @(
For example, B) is always separated by a distance @1, and this gap t is set to be approximately equal to the transport path length (lambda) between the two recording heads, which will be described later.

The operation of the reading means having such a configuration will be explained.

When the operator places the book-type original l on the platenco and presses down a push button (not shown) for instructing image reading and recording, the reading units J and l maintain a reading gap t with respect to each other. The slides 16 and 7 are moved horizontally in the direction of the arrow to scan the image of the original. At that time, the original S images of the left and right pages of the document
Or, the reflected light is irradiated by mirror 3, 3
3,3 daf or lko, 4I3. 'lda and lens 3S
Alternatively, each image is formed on one image sensor 36 or the other via IIy. The reflected light incident on the image sensor 36 or Hiroru is converted into a time-series electrical signal (-image signal) according to the energy of the radiant light, and this image signal is electrically processed by a processing circuit (not shown). Recording is performed on recording paper using a recording means to be described later. Then, when the reading position A or a of reading any) 3 or da reaches the top or bottom, which is the end of the document l, respectively, the reading and recording are finished.

Here ↑, the platen of the reading means is formed into a half-folded shape with an angle of 0, and the reading units J and D are respectively disposed directly facing the platen surface. The back opening/a and the platen can be brought into close contact even to the top 2a, and are parallel to the back opening/a part of 7.
, and the reading units 3s and q can faithfully read that part.

Therefore, it is possible to accurately and faithfully record images such as characters and figures in the vicinity of the opening /a of the original SL on 1j11# without distorting them. Furthermore, since the reading position of the jfil reading unit 3g is moved at the same distance as the path of the recording head, it is possible to record 11 sides of 1g without using a storage means (memory) as described later. A double-sided recording device with a simple structure and low cost can be obtained.

FIG. 3 shows an example of a recording means according to the present invention that performs double-sided recording using image signals from the reading means shown in FIGS. 1 and 2. FIG. In the figure ζ, jO is the recording paper, j/ is the paper feeder that feeds the recording paper jO, j2 and Sa are the transport rows 2 that transport the recording paper SO, and 14t and 53 are the reading rows. A registration roller that aligns 100 million records in synchronization with the drive signal of the means.

j6 to j6.2 are conveyance rollers that convey the recording paper SO.

63 ~ Goji is a recording paper! 73 is a conveyance belt that conveys the recording paper Sθ.

This is a paper discharge tray that stores the recording paper go that has undergone double-sided recording.

7S and 76 are recording heads such as inkjet,
A reproduced image corresponding to the output image signal of the corresponding one-dimensional image sensor 36 or image sensor 6 is formed on the front or back surface of the recording paper jθ. The recording heads qs and 76 are so-called full multi-heads arranged in a full line in a direction substantially perpendicular to the conveying direction of the recording paper Sθ, for example. Reference numeral 7g indicates a suction fan as suction means for the recording paper go, and reference numerals 79 and So indicate porous guide plates interposed between the recording paper 5θ and the suction fan 77 or the guide plate 1.

To explain the operation of the above-mentioned recording means, which maintains the best flatness of the recording paper Sθ by suctioning the recording paper 50 to the guide & 7D and lθ using the suction funk and 7t, the operator Place it on the type Harayu/Y platen, press down on the push button, and press F! When It and MiL records are instructed, the paper feed roller 31 and the conveyor rollers J and JJ are rotated in synchronization with the instruction signal.

Recording paper! O is placed in the conveyance guide bases 3 and 6 and in the registration rollers 4j and 66! Transport it to Ko and sJ. Next, the reading unit 3 and the reader are moved in the direction of the arrow in FIG. , At the same time, register roller j and 3! And the conveyance rollers j6 to j62 are also rotated.

This allows the recording paper 30 to be moved between the guide plate 79 and the six guides.
4 to the recording position C. that time,
The paper feeding speed of resists Cl-5za and 55 and the moving speed of reading units J and DA are kept the same.

Here, at the recording position IIIC, the first recording head 7s is driven by the rough image gI signal output from the one-dimensional image sensor 36 of the bladder unit 3.

One side of the document l corresponding to the reading unit 3 (for example.

The image on the left four page surface is reproduced and recorded on the first surface (front side) of the recording paper jO. Next, bring the recording paper SO to the recording position.
I! and further in the direction of the conveyor belt 73 - conveying 1
Here, at the recording position, the image rotation signal from the one-dimensional image sensor 4 (A) is driven by the reading unit 76, and one side of the document l corresponding to the reading unit 4 (for example) is driven.

The image on the right side page is reproduced and recorded on the first side (back side) of the recording paper SO.

The recording paper SO with adjacent double-sided recording is discharged and stored in the paper discharge tray by the conveyance rollers SR to 6, the conveyance guide 72, and the conveyance belt 3. By repeating the above-mentioned operations one after another in this manner, a desired number of sheets of 1IIIil-recording can be obtained. In particular, as mentioned above, since the distance of the conveyance path between the positive recording head S and 76 (P2) and the reading position of the rPa reading unit 3 and D are the same distance as the distance @1, Images of the left and right pages of the document l can be recorded on both sides of the corresponding recording paper 100 without using any storage means.

As explained above, according to the present invention, reading systems (reading units) are provided to separately KM each image plane of the left and right pages of a book-type original, and the reading positions of the v4 reading system are separated by a predetermined distance, and Since the predetermined distance is made equal to the distance of the path between the corresponding recording heads, it is possible to eliminate the back-opening effect of the original and reproduce the original III image faithfully and accurately, and without using any storage means. It is possible to record on both sides.

In the double-sided recording device of the present invention, the recording head is not limited to the inkjet type (of course, other types such as dot type are also applicable).

[Brief explanation of the drawing]

No. xlQ is an internal configuration diagram of a reading means of a double-sided recording device showing an example of the present invention, and FIG. 2 is a side view of FIG. 1. FIG. 3 is an internal configuration diagram showing an example of the recording means in the present invention, which performs double-sided recording using the image signal from the reading means of FIG. 1. l...The core of the book type. λ...Platen (original table). j, lI...reading unit. ! ...Reading unit mounting base. 6.7...Slide axis, ,yi,yi...Light source. J-~, 7F, Q, 2~ Tag...Return mirror. To 3? ! ;...Imaging lens. JA, 4'A...-dimensional image sensor. 3-θ...Recording paper, Sl...Paper feed roller. 5, jJ... Conveyance roller. SL, ss...Registration roller. jL~6λ...conveyance roller. 63～riλ...Conveyance guide. 7J...Transportation belt, ゛7V...Output tray, riS, ri6...Seki-recording head. 77, rit... Suction fan, '7, 10... Porous guide plate. Figure 1 Figure 2

Claims (1)

[Claims] In a double-sided recording device that reproduces and records on both sides of recording paper, which is a book-type manuscript such as a book or ledger, a platen is bent at an angle θ to keep each image surface of the left and right pages of the manuscript flat; at least λ reading means that move relative to each other parallel to the vertical direction of each of the image planes,
a first recording head that separates the "+" reading positions of both the driver reading means from each other by a predetermined distance in the vertical direction, and reproduces and records the predetermined interval on a first surface of the recording paper; and a second recording head of the recording paper. A double-sided recording device characterized in that the conveyance path between the second recording heads is formed to be equal to the conveyance path between the second recording heads for reproducing and recording.