JPH09331427A - Image reader in process printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operability by interlocking edit of an original by an area designation sheet with a 2-side consecutive shot mode. SOLUTION: An automatic draft feeder(ADF) inserts originals stacked on an original tray 22 one by one original to a read section. A CCD 29 converts an image of the original into an electric signal and stores once the converted signal to a memory. A thermal head 33 of a process device 13 punches an image of the original onto a thermosensing hole original 31. In the case of area designation for process, a translucent area designation sheet 2 is overlapped on the original 1 and an enclosed curve surrounding an edit processing object image is drawn on the sheet 2 and set to the ADF. The process device 13 applies logic discrimination to image information between the original 1 and the area designation sheet 2 to punch the designation area image. In the case of designating the 2-side consecutive shot mode, the process device 13 is overlapped onto the thermosensing hole process original 31 to punch the 2nd designation area image based on the logic discrimination in pairs with the 2nd original 3 and the 2nd area designation sheet 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is designed to specify an area for an image to be edited or processed on an original using an area specifying sheet different from the original, and to read the specified sheet prior to reading the original. The present invention relates to an image reading device in a plate making printing machine.

[0002]

2. Description of the Related Art Conventionally, as described above, a plate-making printing machine having a reading device for designating a specific region of a document using a region designation sheet different from that of the document and reading the designated sheet prior to reading the document. A plate-making printing machine having a two-sided continuous shooting function of making two originals into one printed matter is also known.

In such a case, for example, the D and E parts of the first original 1 as shown in FIG. 1 are deleted,
In addition, the first and second parts of the second manuscript 3 are extracted, and both are combined to create 1
There are times when it is desired to specify the regions of two originals separately and to perform different image processing separately, for example, to make one printed matter 5.

[0004]

In such a case, conventionally, the third original in which the A, B and C parts are extracted from the first original 1 by using the first original area designation sheet 2 and the second original 3 are used. The second original area designating sheet 4 is used to create a composite original that is combined with the fourth original with such portions deleted. Such a composite original is created by cutting and pasting each individual original. Must. By the way, such a work is troublesome in terms of alignment and the like, and in addition, there is a problem that a shadow of a bonding end portion appears on a printed material.

Therefore, an object of the present invention is to solve the problems of the conventional apparatus as described above, and to make an arbitrary handwritten closed curve on the area designation sheet without making a new original by cutting and pasting. Another object of the present invention is to provide an image reading apparatus capable of separately performing image processing on originals and combining them with only an image of a cutting and pasting operation of designating an area.

[0006]

In order to achieve the above-mentioned object, the present invention is an image reading device in a plate-making printing machine, wherein the invention according to claim 1 is a document editing and processing target image. Is specified by using an area specifying sheet different from the original, and the automatic document feeder and the two-side continuous shooting mode are provided in the plate making printing machine which reads the specified sheet prior to reading the original. To do.

According to a second aspect of the invention, in the invention according to the first aspect, the first mode is set in the two-side continuous shooting mode.
This is characterized in that the original and the second surface are separately edited.

According to a third aspect of the invention, in the invention according to the first aspect, in the second side continuous shooting mode, the area designation sheet on the first side and the original are automatically fed, and then the automatic original feeding is performed. The function is temporarily stopped, a new image edit processing mode is designated, and then the area designation sheet on the second surface and the original are automatically fed.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention shown in the drawings will be described. 2 and 3 show a printer equipped with the reading device of the present invention, which includes an automatic document feeder (hereinafter referred to as ADF) 11, a reading device 12, a plate making device 13, a drum removable stencil printing device 14, and an image. A processing circuit 15, a control circuit 16,
It is composed of an operation unit 17. Further, as shown in FIG. 3, a plurality of originals placed on the original tray 22 are inserted one by one from the lowermost one by the separating section 23 and accurately conveyed by the original conveying rollers 24.

The light from the fluorescent lamp 26 is reflected by the original surface and is reflected by the mirror 27.
After changing the optical path with, the lens unit 28 converges and C
The CD sensor 29 photoelectrically converts the image information of the document into an electric signal. The plate-making device 13 is a roll-shaped heat-sensitive stencil sheet.
31, a platen roller 32 that presses the thermal head against the thermal head while transporting it, a thermal head 33 that perforates image information on the base paper 31, a base paper cutting cutter 34, and a plate feed for feeding the front end of the base paper to the clamper section of the printing drum. A roller 35, a peeling roller 36 for peeling the end of the used base paper from the outer circumference of the printing drum, and a conveying roller 37 for conveying the discharged base paper.
And a plate discharge storage box 38 for storing the used base paper stripped from the printing drum.

The printing paper 42 loaded on the paper feed tray 41 is sent out from the uppermost one by the rotation of the call roller 43, and is separated by only one sheet between the paper feed roller 44 and the separation blade 45. Sent to 46. The feed roller 46 feeds the printing paper between the drum 47 and the press roller 48 in synchronization with the rotation of the printing drum 47. The printing drum 47 around which a perforated stencil sheet is wrapped has an ink supply unit inside, and the printing ink is interposed between the printing drum 47 and a press roller 48 so that the printing ink is perforated in the base paper. Transfer to paper according to. The printed sheets are conveyed by the sheet discharge conveyance suction unit 49 and stacked on the sheet discharge tray 50 in order.

The printing drum 47 is integrated with an ink supply container, an ink supply pump, an ink supply unit, etc. as a drum unit. The drum unit containing black ink, the drum unit containing red ink, and a plurality of drum units are sequentially replaced. Can be used.
The details of the drum unit attaching / detaching mechanism are described in detail in Japanese Utility Model Laid-Open No. 61-85462.

To specify an area, a first area specifying sheet 2 having the same size as a semitransparent original size is overlaid on the first original 1 on the first side, and a line width of 0.25 mm is obtained with a water-based felt-tip pen or the like.
With the above writing tool, the image to be edited is surrounded by a closed curve by handwriting. Similarly, the area of the second original 3 on the second side is specified by the second area specifying sheet 4. In this case, the closed curve for specifying the region may be a concave figure as shown in FIGS. 4A to 4D, and any number may be specified.

Next, the original and the area designation sheet are overlapped as shown in FIG. 5, and the automatic document feeder 11 is placed with the image side facing down.
Set as a pair with 4 sheets. Next, the operation board shown in FIG.
Press the 2-sided continuous shooting mode key 56 of 55 to set the 2-sided continuous shooting mode. Then, the user presses the image processing mode key 57 to specify a desired processing mode using the numeric keypad 58 to determine what to do with the designated area of the original on the first side. This processing mode includes extraction of the area, deletion of the area, bordering of the image within the area, shading of the image within the area, photo mode inside the area, character mode outside the area, and image inside the area. And the image in the area is shaded. When the processing mode is specified by the ten keys 58, for example, Fn1
Is displayed.

Next, when the start key 59 is pressed, the area designation sheet 2 on the first surface enters the reading device via the ADF 11. The reading by this device is, for example, with a precision of 16 dots / mm and CCD
It is read by a line reading element such as. However, the thickness of the line that specifies the area is specified to be 0.25 mm or more, so 1
There is no inconvenience even if the data is sampled at / 4.
The reason for defining 0.25 mm here is that the line thickness of writing instruments such as felt-tip pens is mostly 0.5 mm or more.

The sampling method will be described with reference to FIG. In the sub-scanning direction, the excitation method of the driving stepping motor of the ADF 11 is switched to a speed twice as fast as the document feeding speed to read an image every two lines. Then, the 1/2 frequency dividing circuit further separates the image, and as a result, the image is read every four lines. In the main scanning direction, each line data sampled in the sub-scan is sampled every 4 data by the 1/4 frequency dividing circuit. Next, the sampled data is stored in the frame memory, and the closed curve filling process as shown in FIG. 4 is performed.

As shown in FIG. 8, I-1 processing is performed from left to right in the frame memory from top to bottom, and subsequently I-2 processing is performed from right to left. After performing the process up to the bottom, the process II-1 is performed from bottom to top from right to left, and then the process II-2 is performed from left to right up to the top.
This processing method uses the central pixel E and 8 neighboring pixels (A to
This is a method of converting the central pixel into new image information based on the image information from (1) and (2).

The specific method is described in I-1, II- above.
Regarding 2, E or [(CD or G) and (C or F)]
Is satisfied, the target pixel E is filled in and I-2, II-
Regarding 1, the target pixel E is filled if E or [(A or D) and (C or F)] is satisfied. These I-1,
It is the result that the filled area is filled for all of I-2, II-1, and II-2.

Explaining this with reference to FIG. 9, although only the processing of I-1 completely covers the inside of the closed curve, such as the part A, the part C
D part will also be painted over. It is subjected to the process of I-2, and is ANDed with I-1, to erase the C portion, and to perform the processes of II-1 and II-2 to erase the E portion. The data painted in this way is stored in the painting memory. The above is the method of reading the area designation sheet 2 of the first document. 1st original 1 automatically
Automatically enters the ADF 11 to process the image data in accordance with the specified editing processing mode, and at the same time, as described above, the thermal head is used to perforate the base paper.

After completion of the plate making of the original on the first side, all the driving system is stopped and the image processing mode on the second side can be designated again. As with the first surface, when the keys on the operation unit are operated to specify the image processing mode and the start key is pressed on the second surface, the area designation sheet and the document on the third surface are automatically conveyed by the ADF 11. Then, the plate making process is performed subsequently to the first surface. After plate making, printing is performed according to the designated number of prints.

[0021]

As described above, according to the present invention, the automatic document feeder and the two-sided continuous shooting mode are provided in the plate making press using the area designation sheet different from that of the original.
When you specify the area of each of the originals individually and perform image processing separately, you can do it without the troublesome work of cutting and pasting unlike the conventional one, with a simple operation. There is an effect.

[Brief description of drawings]

FIG. 1 is an explanatory view showing two originals different from each other according to an embodiment of the present invention and a printed material obtained by editing and combining the originals.

FIG. 2 is a perspective view of a plate-making printing machine to which the present invention is applied.

FIG. 3 is a vertical sectional front view of the same.

FIG. 4 is an explanatory diagram showing an example of area designation in the embodiment of the present invention.

FIG. 5 is a perspective view showing a state in which the original document and the area designation sheet are set in the plate making printing machine.

FIG. 6 is a plan view of an operation board of the plate making printing machine.

FIG. 7 is an explanatory diagram showing a sampling situation in the embodiment of the present invention.

FIG. 8 is an explanatory diagram showing an area designation sheet reading situation in the above.

9 is an explanatory diagram showing data stored as a result of reading according to FIG.

[Explanation of Codes] 1 First original 2 Same area designation sheet 3 Second original 4 Same area designation sheet 11 ADF 12 Reader 13 Plate making device 14 Printing device 15 Image processing circuit 16 Control circuit 22 Original tray 29 CCD sensor 31 Hole plate Base paper 33 Thermal head 42 Printing paper 47 Printing drum

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G06F 15/66 470A

Claims (3)

[Claims] 1. An automatic document feeder, in an stencil printing machine, in which an image to be edited or processed is designated by using a region designation sheet different from that of the document and the designated sheet is read prior to reading the document. An image reading apparatus having a surface continuous shooting mode. 2. The image reading apparatus according to claim 1, wherein, in the two-sided continuous shooting mode, the first side and the second side are separately edited for manuscripts. 3. In the second side continuous shooting mode, after automatically feeding the area designation sheet on the first side and the original, the automatic original feeding function is temporarily stopped and a new image edit processing mode is designated,
The image reading apparatus according to claim 1, wherein the area designation sheet on the second surface and the original are automatically fed thereafter.