JPS61223745A - Input device for position data on original - Google Patents

Abstract

PURPOSE:To improve the utilization efficiency of a device body such as a scanner by providing a mechanism for inputting the position of an original on a disassembling drum separately from the device body. CONSTITUTION:A mechanism for supporting the drum rotatably is constituted and a rotary encoder 201 which generates a pulse signal corresponding to the angle of rotation of the drum is provided to this mechanism; and a mark 202a which indicates the rotation-directional origin is provided to the drum and a detector 202b for the mark is provided to the drum support mechanism to generate pulses of the angle of rotation from the origin on the drum. A linear encoder 203 generates a pulse signal corresponding to the quantity of axial movement of the scope 200 which observes the peripheral surface of the drum, a mark 20 indicating the axial origin of the drum is provided to the scope, and a detector 204b for the mark is also provided to generate pulses corresponding to the movement distance of the scope form the origin. Those signal pulses are suppled to and counted by a counter 206. Its counted value is supplied to a computer 207 and stored in a floppy disk 208.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an apparatus that measures the position of a document and captures position data prior to disassembling a scanner or the like.

(Technical background of the invention and its problems) For example, in order to capture color separation data of a document using a scanner, the document is pasted on the surface of the separation drum on the scanner, the document position is input, and the image data is scanned. I'm trying to incorporate it. Since a scanner is an expensive device, there is a demand to use it without wasting time as much as possible.

From this point of view, the work of taking in the position data of the document on the disassembling drum is a preliminary work for taking in image data, which is the original function of the scanner, and it cannot be said that the scanner is being used effectively.

(Object of the Invention) The present invention has been made in consideration of the above-mentioned points, and an object of the present invention is to provide a device for inputting the position of a document on a disassembly drum separately from the main body of the device such as a scanner.

[Summary of the invention]

In order to achieve this objective, the present invention constitutes a mechanism that rotatably supports the drum, and includes a rotary encoder that generates a pulse signal according to the rotation angle of the drum, and a mark on the drum that indicates the origin of the rotation direction. A means for detecting this mark is provided in the drum support mechanism to extract the rotation angle pulse from the origin of the drum, and a scope for observing the circumferential surface of the drum is supported movably in the axial direction of the drum. In addition to providing a linear encoder that generates a pulse signal in accordance with the axial movement m of the scope, a mark indicating the origin in the drum axis direction is provided on the scope, and a means for detecting this mark is provided on the scope support mechanism to prevent movement of the scope from the origin. The present invention provides a device that extracts pulses according to distance.

〔Example〕

The present invention will be described below by way of example with reference to the accompanying drawings.

FIG. 1 shows the electrical configuration of an embodiment of the present invention, in which 100 is a decomposition drum, and a document has already been pasted on the drum surface. This drum 100 can be freely rotated by operating an operation section (not shown). This rotational self-injection is detected by the 0-tari encoder 201 and given to the counter 206 as a pulse signal for counting. The counter 206 has an origin mark detector 202
A signal detected by the origin mark detector 202a of the drum 100 is applied from b to perform a reset operation.

In addition, a scope 200 is used to observe the peripheral surface of the drum 100.
is provided so as to be movable along the axial direction of the drum 100, and the amount of movement of the scope 200 is detected by a linear encoder 203 and provided as a pulse signal to a counter 206 for counting. The counter 206 receives a signal from the origin mark detector □ 204b based on the detection of the origin mark 204a of the scope 200, and performs a reset operation.

In addition to this, the counter 206 is also given a signal from the keyboard 205, and when the keyboard 205 is operated, the count value of the counter 206 is given to the computer 207, where it is converted into a data format that can be instructed to the scanner, and then transferred to the floppy disk. It is stored on disk 208.

FIG. 2 shows an overview of a system including an apparatus according to the present invention. The decomposition drum 100 is rotatably supported by a first shaft support 120.

To install the disassembly drum 100, tilt the second shaft support operation handle 130 to the left in the figure to widen the distance between the first shaft support 110 and the second shaft support 120, and place the disassembly drum 100 between both shaft supports 110 and 120. After setting the operation handle 13
The decomposition drum 100 is fixed to the double shaft supports 110° and 120 by rotating it to the right in the drawing until it stands upright again. At this time, if the original is attached to the circumferential surface of the decomposition drum 100,
The document is illuminated from inside by operating means 300 for moving a lamp (not shown) provided inside the drum 100 in the axial direction of the drum 100.

Then, the drum 100 is rotated and the scope is moved in the axial direction of the drum 100 so that a predetermined point on the document, for example, each corner of the document, matches the aim of the scope, and the keyboard 205 is operated each time. counter 2
The count value of 06 is given to the computer 207, and the data is converted and written to the floppy disk 208.

This 70-tube eye disc 208 is set in the computer 1 on the scanner side into which color separation conditions are input, and after predetermined color separation conditions are written therein, it is used by the scanner 2 to take in image data.

That is, the decomposition drum, on which position data has been taken in in advance, is set in the decomposition unit @2a of the scanner 2, image data is taken in based on the position data from the computer 1, and an exposure operation is performed by the exposure device 2b.

Therefore, the scanner 2 can immediately perform the film exposure operation by setting the disassembly drum and the floppy disk, and the utilization efficiency of the scanner 2 can be maximized.

Figure 3 (a>, (b), and (c) shows the structure of the part surrounded by the dashed-dot line in Figures 1 and 2 in more detail, and Figure (a) shows the structure excluding the scope. Front view of the condition,
Figure (b) is a front view of only the scope, and figure (c) is a plan view.

First, in FIGS. 3(a) and 3(C), the protrusion 111 of the first shaft support 110 in the drum support mechanism fits into the right-end recessed portion of the drum 100 indicated by the dashed line, and the drum 100
The protrusion 121 of the second shaft support 120 fits into the left end recess of the second shaft support 120 . This second shaft support 120 is provided with a lever 130, which presses and supports the drum 100 in the illustrated state, and when the lever 130 is rotated counterclockwise, the drum 100 becomes free.

An arm 311 with a fluorescent lamp 310 attached to the tip is provided at the axial center of the drum 100.
is attached to the support column 321 of the carrier 320. This arm 311 is attached to a column 321 of a carrier 320. And the pillar 321 is a ball bearing 32
It is attached to a slide par 323 supported by 2.

Therefore, the fluorescent lamp 310 can be freely moved in the axial direction of the drum 100. Therefore, the fluorescent lamp 310 is aligned with the document pasting position on the drum 100 so that the image of the document can be clearly observed.

A rotary handle 1 is located near the right end of the drum of the first shaft support 110.
12 is provided, and the drum 100 can be rotated around the axis by rotating this handle 112 toward the front in the figure or toward the back in the figure. This rotational motion is transmitted to the 0-tary encoder 201 via the coupling 140, and the rotary encoder 2
01 forms a pulse corresponding to the amount of rotation of the drum 100. Incidentally, when it is desired to rotate the drum 100 by a minute angle, the fine movement handle 113 is operated. This fine movement handle 1
The mechanism for transmitting the operation a of 13 to the drum 100 may be a well-known mechanism, so its explanation will be omitted.

Next, the scope 200 shown in FIGS. 3(b) and 3(C) includes a lens barrel 210 and an X-Y table 220 that moves the lens barrel 210 in parallel and perpendicular directions to the axial direction of the drum 100.
Consisted of.

The lens barrel 210 consists of a horizontal objective mirror and an inclined eyepiece so that the lateral peripheral surface of the drum 100 can be observed from slightly above. An X-Y table 220 that supports this lens barrel 210
is a rail 2 arranged parallel to the axial direction of the drum 100.
21, a carriage 222 placed on this rail 221 and running parallel to the axial direction of the drum 100; an X fine adjustment table 2 stacked sequentially on this carriage 222;
23, Y movement table 224, Y fine adjustment table 225
has. Then, the carriage 222 and the Y movement table 224 are operated to roughly adjust the XY position, and then the X fine adjustment table 223 and the Y fine adjustment table 2
Operate the fine adjustment knob 25 to accurately adjust the XY position.

Therefore, the scope 200 can be aimed at a predetermined point on the document attached to the circumferential surface of the drum 100.

As shown in FIG. 1, the position data after this alignment is transmitted to the rotary encoder 201 and the linear encoder
3 is input to the counter 206. Prior to inputting this position data, the origin mark detectors 202b and 204
The counter 206 is reset by aligning the origin marks 202a and 204a with respect to b.

The document position data captured in this manner is written to a floppy disk 208 via the computer 207, and then used for capturing image data with a scanner.

〔Effect of the invention〕

As described above, the present invention is designed to rotatably hold a drum disassembly drum and extract a pulse signal according to the amount of rotation, and also includes a scope for observing the circumferential surface of the drum, and a scope for observing the circumferential surface of the drum. Since the pulse signal is extracted according to the drum axis direction line +J+FA of the scope when focusing on a desired point on the surface, it is possible to determine in advance which range on the decomposition drum to capture image data at the time of image data capture. There is no need to capture position data on the main body of the device, such as a scanner. Therefore, there is no time required to use the main body of the apparatus, such as a scanner, to capture position data of the original, and the efficiency of use of the main body of the apparatus can be improved.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an outline of an embodiment of the present invention, Fig. 2 is an explanatory diagram showing an outline of a system including the embodiment, and Fig. 3 (a
), (b), and (c) are diagrams showing one embodiment of the present invention. 100... Disassembly drum, 110.120... Axial support, 130... Lever, 200... Scope, 210
... Lens barrel, 220... X-Y table, 310...
・Fluorescent lamp, 320°...carrier. Applicant's agent Kiyoshi Inomata Figure 1

Claims (1)

[Scope of Claims] A mechanism for rotatably supporting a drum; a rotary encoder that generates a pulse signal according to a rotation angle of the drum; a mark provided on the drum to indicate the origin of the rotational direction of the drum; means for detecting the mark provided on a support mechanism; a mechanism for supporting a scope for observing the circumferential surface of the drum so as to be movable in the axial direction of the drum relative to the drum; and axially moving the scope. a linear encoder that generates a pulse signal according to the amount; a mark provided on the scope to indicate the origin of the scope in the direction of the drum axis; a means provided on the scope support mechanism for detecting the mark; and a means for detecting both the marks. A document position data input device comprising a counter that is reset by a detection signal from the means and counts pulse signals from both of the encoders.