JPS6078448A - Method and device for original positioning in color scanner drum - Google Patents

Abstract

PURPOSE:To stick a color original to a color scanner drum accurately and easily by moving the color original in parallel to a prescribed position on the circumferential face of the color scanner drum, whose revolving shaft is provided in parallel with a reference line, while holding the angle between the color original and the reference line on a projection plate as it is. CONSTITUTION:A format 25 is projected onto a projection plate 11 along a fixed reference line 12 from below, and a color original 27 is placed on the projection plate 11, and the magnification and the angle of the color original image 27 are matched to a prescribed insertion section 25' in this format 25. In this state, a position means is used to read one point of the color original 27 as a coordinate reference point. The color original 27 is held on a holding plate 23 while keeping this angle as it is. The holding plate 23 is moved along a shaft 21 by a turning arm 22 to stick the color original to a prescribed position on the circumferential face of a color scanner drum 20 whose revolving shaft is provided in parallel with the reference line. Thus, the color original is stuck to the color scanner drum accurately and easily at the angle according with the format.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for applying a color document to a color scanner drum at a predetermined precise angle.

Conventionally, color scanners are known that have a so-called editing function, that is, a full-page collection function, which performs color separation and layout at the time of final finishing. In order to load a document into a scanner that processes color separations and full-page collections at the same time, the document must be placed in a predetermined position relative to the baseline of the scanner's document drum according to the final layout. It needs to have an angle.

The reason for this is that when the original 2 is mounted on the original drum 1 straight with respect to the base line 3 of the original drum as shown in FIG. The image f46 exposed on the exposed film 5 also becomes an image that is straight with respect to the base line 7 of the exposure drum 4.

Therefore, in order to fully utilize the function of this scanner, which processes color separation and layout processing at the same time, an image 8 oblique to the base line 7 of the exposure drum 4 is required, as shown in FIG. When the original 2 is placed on the original drum 1,
When mounting the document drum 1, it is desirable to mount the document drum 1 diagonally with respect to the base line 3. This is because when such a scanner body scans a document and then exposes the film on the exposure drum 4, the scanner itself has a function that rotates the scanned image at an arbitrary angle relative to the document before exposing it. However, if the angle rotation is performed by a computer that processes information for page collection, problems such as an increase in the capacity of the computer itself and an increase in processing time will occur, so it is also costly. This is because it is disadvantageous in terms of time.

Furthermore, the IfA document attached to the document drum 1 at a predetermined angle must transmit necessary trimming information of a predetermined image therein to the exposure drum 4; Starting from scratch based on a manuscript was extremely cumbersome in terms of operation.

This invention has been made in view of the above circumstances, and allows a color M manuscript to be pasted onto a color scanner drum accurately and easily at an angle consistent with the format, and also allows desired trimming information in the manuscript to be pasted onto the color scanner drum. An object of the present invention is to provide a method and apparatus for positioning a document for a color scanner drum, which can easily and accurately determine the position of a document before pasting it on the drum.

That is, in this invention, the appearance is projected onto a digitizer table surface from below based on a certain reference line, and then a color original is placed on the table surface, and the magnification and angle of this appearance image are made to match the color original image. In this matched state, use the position indicating means to read the necessary trimming information in the color document using one point in the color document as a coordinate reference point, and then move the color document to the rotation axis while maintaining the above angle. The present invention provides a document positioning method for a color scanner drum, characterized in that the document is set parallel to the reference line, is moved in parallel to a predetermined position on the circumferential surface of the Lareta color scanner drum, and is pasted.

Further, the present invention includes a digitizer table for document positioning, a projection lens provided below the table,
a display fixing plate provided below the projection lens and movable on a plane parallel to the table; a v4 joint mechanism for adjusting the distance between the projection lens and the display fixing plate; a projection device comprising a light source for illuminating the upper surface of the fixed plate; a color scanner drum support mechanism provided on one side of the table; a shaft provided on one side of the table; One end is pivotally supported, and the other end has an original holding plate for holding a color original,
A rotary arm mounted on the shaft and movable between the table and the peripheral surface of the color scanner drum; coordinates one point on the color document for trimming information of the color document placed on the table; The present invention provides a document positioning device for a color scanner drum, characterized in that it is equipped with a position indicating means for reading as a reference point.

The present invention will be described below with reference to illustrated embodiments. ,
In FIG. 3, reference numeral 11 denotes a digitizer table having a reflective surface of white color or the like and a grid-like wiring for electrically reading coordinate points on the back surface, and position indicating means on the surface of the table 1. , for example, place and slide the cursor 9,
The desired coordinate position can be read and stored. Note that a reference line 12 is drawn on the surface of the digitizer table 11 along one side thereof. Note that a plurality of reference lines 2 may be provided in a predetermined direction.

Note that instead of providing this reference line 12 on the table 11, a corresponding line may be provided on the appearance fixing plate 15, which will be described later. This table 11 is fixed to a frame 13, and below it a projection lens 14 is also attached to the frame J3 via a bellows 10. A presentation fixing plate J5 is provided below the projection lens 4 and parallel to the surface of the table 1. A base line 16 parallel to the reference line 12 on the table 11 is provided on the upper surface of the appearance fixing plate J5, and is connected to a pair of shafts 17 and 18 perpendicular to each other in the front-rear, left-right directions (
In other words, it can move parallel to the XY plane).

Further, a color scanner drum support device 19 held on the side surface of the frame body 13 is provided on one side of the table 1, and the color scanner drum 20 is supported so that its axis (or reference line 28) is above the table 1. It is rotatably and removably supported so as to be parallel to the reference line No. 2 of the figure. Note that the support device 19 is not limited to the illustrated example, and can be attached to the frame body 3 at any other arbitrary position.

Further, in front of the table 1, there is provided a shaft 2 whose one end is fixed to a part of the frame 13 and which extends to the front of the color scanner drum 20 in parallel with the reference line 12 of the table 1. One end of a telescopic rotary arm 22 is pivotally supported on this. A document holding plate 23 is fixed to the other end of the rotary arm 22 for holding a color document using tape or a suction tube. The rotating arm 22, the color scanner drum support device 9, the projection lens 14, and the table 1 are integrally moved vertically in the direction of the format fixing plate 15, or the format fixing plate 5 is moved in the direction of the lens 14. The distance between them can be adjusted by moving the scanner up and down, or by moving both of them up and down, thereby specifying the magnification for the format layout of the color document. A pair of light sources 24 are provided diagonally above the form fixing plate 15 to illuminate the form fixed on the form fixing plate 15.

Next, using this document positioning device for color scanner drum, the desired trimming information in the document is read υ,
Also, the operation of pasting this document onto the color scanner drum will be explained.

First, the format 25 is positioned on the format fixing plate J5 so that the pair of opposing register marks 26 are parallel to the reference line 16 or the reference line 12, and fixed with tape or the like. The form 25 thus fixed is illuminated by the light source 24 and projected onto the digitizer table 1 via the lens 4 (see FIG. 4). Next, the color document 27 is placed on the digitizer table 11, and the format fixing plate 5 or the frame 3 supporting the lens 14 is moved up and down to align the color document with a predetermined insertion section 25' within the projected format 25. While adjusting the magnification and silence of the color original 27, the angle and image of the color original 27 on the table 1 are made to perfectly match the image being displayed (see FIG. 5).

In this state, move the digitizer cursor 9 onto the color original 27 and use an obvious point on this original edge 427 (for example, a corner of the original 270) as a reference point to determine the desired trimming range in the color original 27. The coordinates of are read, and this trimming information is written to 1 using a Micronorocera+j (not shown) or the like.

Next, the rotary arm 22 is moved along the shaft 2, and then the color original holding plate 23 is rotated onto the table 11, and the color original 22 positioned as described above is applied with tape or suction. It is held by the holding plate 23 (see Fig. 6). Then, rotate arm 2 again.
2 to shaft 2 and color scanner drum 20
The color original 27 is moved to a predetermined position on the circumferential surface of the drum 200 by rotating it in a predetermined position, and is fixed with tape or the like (see FIG. 7). This allows the color original 21 to be pasted onto the color scanner drum 20 in a state that accurately matches the angle of the layout.

On the other hand, the previously stored trimming information is stored in the encoder,
Scanner drum 20 for use with Nogurusu motor, etc.
The coordinates are converted into the trimming coordinates in the document 27 shown above, and output onto the exposure drum by a microprocessor or the like. Note that the conversion to trimming coordinates on the color scanner drum 20 is performed, for example, as shown in FIG.
From the arbitrary origin 30 of the color original 27 to the reference point 3 (
For example, the coordinates (XIIyI) of the corner of the color original 27
By subtracting the trimming stop coordinates (x, y) previously set on the digitizer table 1 to these coordinate values, the h (final track trimming coordinate) on the color scanner drum 20 can be set. can.

As described in detail above, according to the present invention, it is possible to accurately and easily paste a color original onto a color scanner drum at the desired angle, and also to paste a desired trimming pin in the original onto the drum. It can be easily and accurately determined before entering the market.

In addition, in the above embodiment, the appearance fixing plate) 5 is in-plane X,
Although an example has been described in which it is provided so that it can be moved in parallel only in the Y direction, it is not limited to this and may be provided so that it can be rotated on a plane. Further, in the above embodiment, the shaft 2 is arranged parallel to the reference line 12 of the digitizer table 1, but it may be arranged not parallel but at an arbitrary angle.

[Brief explanation of the drawing]

FIGS. 1 and 2 are perspective views illustrating the relationship between the angle at which a color document is attached to the document drum and the output, and FIG. 3 is a main part of the document pasting device for a color scanner drum according to the present invention. 4 to 7 are perspective views, and FIG. 8 is a plan view illustrating a method of pasting a color document onto a color scanner drum using the document pasting device shown in FIG. 3. FIG. FIG. 3 is a plan view of the drum for explaining a method of determining trimming coordinates. In the figure, 1... Original drum, 2... Original, 3... Baseline 4... Exposure drum, 5... Film, 6... 1
Recess, 7... Base line, 8... Surface 11, I... Projection plate, 12... Reference line, 13... Frame, No. 4... Projection lens, No. 5°.・Format fixing plate, 16...baseline, 1
7.18... Shirt tonneau 9... Color scanner drum support device, 20... Color scanner drum, 2
No...shaft, 22...rotating arm, 23...
Original holding plate, 24... Light source, 25... Appearance, 26.
...Tombi, 27...Color original, 28...Reference line. Figure 1 Figure 2 Figure 3 Figure 4 End S Figure Figure 6 Figure 7 Figure 8 n

Claims (3)

[Claims] (1) Project the format from below onto the digitizer table surface along a certain reference line, then place a color original on the table surface, match the magnification and angle of this format image with the color original image, and check the matching. In this state, use the position indicating means to read the necessary trimming information in the color document using a point on the color document as a reference point, and then, while maintaining the above angle, move the color document so that the rotation axis is aligned with the above reference line. A document positioning method for a color scanner drum, characterized by moving the document parallel to a predetermined position on the peripheral surface of a color scanner drum provided in parallel and pasting the document. (2) a digitizer table for document positioning; a projection lens provided below the table; and a presentation fixing plate provided below the projection lens and movable in a plane parallel to the table; a projection device comprising: an adjustment frame for adjusting the distance between the projection lens and the appearance fixing plate; and a light source for illuminating the upper surface of the appearance fixing plate; provided on one side of the table; A color scanner drum support mechanism: a shaft provided on one side of the table; one end is pivotally supported by the shaft, and the other end has a document holding plate for holding a color document; A rotating arm that is movable between the table top and the color scanner drum circumferential surface; a position for reading the trimming information of the color document placed on the table with one point on the color document as a reference point; 1. A document positioning device for a color scanner drum, comprising: indicating means. (3) The device according to claim 2, wherein the appearance fixing plate is provided to be rotatable within a plane.