JPS61156966A - Original reproducing device - Google Patents

Abstract

PURPOSE:To attain a reproducing of excellent efficiency by providing a recording means which visualizes an image on recording paper, a vacant-paper detecting means, and a visualization preventing means. CONSTITUTION:If the data transmitted from an optical disc drive device 402 is judged as a blank page by a blank-page detecting circuit 409, the control circuit 408 receives this information, and modifies the page sequence to be set next. Then performs usual actions to print out, and the back side is fully printed. The same paper is set again in a printer 403 for an information printable on the front page of the paper. When the printing is directed, the front page is transmitted sequentially to a page memory 410. The memory 410 then transmits to the printer 403, and the page is printed out. The said sequence is continued until the printing of all of the page is completed. In result, when reproducing from a recording medium that contains the original including the blank page, the reproduction is performed with high efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application I!?) The present invention relates to an original reproduction device for electronic files and the like.

[Prior Art] With the practical use of optical disk devices, electronic file systems with large capacity and high-speed registration and search functions have appeared. Additionally, the speed of document reading devices has also increased, making it possible to register large amounts of documents in a short period of time.

On the other hand, manuscripts are also diversified, and include single-sided, one-sided, one-sided, one-sided, and double-sided sets, and at the time of registration, the sub-sets of these are registered at the same time.

By the way, considering a single-sided document, in a set of documents as shown in FIG. 2, the last page may be blank. in this case.

The storage capacity for the blank page (eighth page) is used for one page. If such sets are registered simultaneously in small sets, the capacity for registering the blank pages increases and is wasted.

Then, when there is a blank sheet, the blank sheet is output. For example, when a double-sided printed item as shown in FIG. 2 is printed on both sides, pages 1 to 7 have content, and page 8 is an unnecessary vane.

Therefore, paper is wasted, which is inefficient in terms of resources and time. Also after printing.

There is a problem that it is necessary to remove the blank paper, which is complicated.

[Purpose of origin] The present invention has been made by focusing on the above-mentioned conventional problem W, and is to efficiently reproduce information when recording a manuscript having blank pages and reproducing the information from a recording medium. The purpose of this invention is to provide a document reproducing device that can perform the following functions.

[Embodiments of the Invention] FIG. 2 is a diagram showing an example of a double-sided set document in which the last page is blank.

:fr, FIG. 3 is a diagram showing the storage state on the optical disk, and FIG. 4 is a diagram showing how to read original data.

For example, with electronic files using optical disk devices,
The original is encoded and recorded on an optical disk. As shown in FIG. 3, data is recorded over a plurality of sectors from the outer circumferential direction of the optical disc to sector φ, and the recording order is not necessarily consecutive.

The total number of pages, which sector a certain page is recorded in, the output order of the page, etc. are recorded as management information for each sector from the inner circumferential direction. This physical information is recorded separately from the image signal, and upon reproduction, the image information is read out based on this management information.

By the way, the page order information recorded in the management information is all rearranged and recorded in IIIR order from the first page to the last page. For example, when a single-sided document is recorded using an automatic reader, as shown in Figure 4, the first time it reads and records only the front, odd-numbered pages, and the second time, it reads and records only the back, even-numbered pages. . Then, in the management information, information on the recording sector of page 7 is recorded so that it can be output to the correct page type.

FIG. 1 is a block diagram showing an embodiment of the invention. The original reading device 401 is an I! device similar to that used in digital copying machines. i Continue reading possible 'A::i
It is. The optical disk drive device 402 is a generally known drive device.

The bullet fi 403 is similar to that used in a digital copying machine, and the control path 405 is used to control each terminal and each function within the electronic file 404. The data bus 406 is used to transfer data between each terminal and each function within the electronic file 404.

Direct Memory Acc
The ESS Controller 407 thereby transfers data between each terminal and each function via the data bus 406. It is something to do. if 'F file device 4
The control circuit 408 of 04 performs communication and control between each terminal and each function.

The blank page detection circuit 409 detects whether the data transferred from the disk I/R9 device 402 to the page memory 410 by the DMA 407 via the data bus 406 is related to a blank page. During O-recording, the page memory 410 temporarily stores one page worth of data from the document reader 401, and then transfers the data to the disk drive device 402. Also, during playback, the optical disk drive device 402
The data for one page is temporarily stored, and then the data is transferred to the printing machine 403. The key manual device 411 is used by the user to operate the electronic file device 404 and each terminal.

In addition to the above configuration, a copying means and a visualization preventing means are provided. The copying means is for visualizing the filed image information on transfer paper, and the visualization preventing means is for preventing blank page information from being visualized. .

Next, the operation of the above embodiment will be explained.

55 is a flowchart showing the operation of the above embodiment.

First, the user inputs whether the printing status is one-sided or two-sided to the control circuit 408 via the key input device 411.

Similarly, control circuit 408 via key human power device 411
When a print instruction is issued (SPI), the control circuit 408 determines whether to print on one side or on both sides (SF3).
If it is one-sided printing, the DMAC 407 sends the data to the optical disk drive device 4 via the data bus 406.
02, data is temporarily stored in page memory 410 in page order (SPI4).

Then, the blank page detection circuit 409 determines whether the data is for a blank page (SPI5);
If there is no blank page, the data is transferred again to the printer 403 by the DMAC 407 and printed out (SPI6).

If the blank page detection circuit 409 detects a blank page,
The blank page data is not transferred to the printer 41) 403, but is transferred from the next image optical disk drive 402 to the page memory 410 (5P17), and then printed out by the printing machine 403, so that all pages are printed. Repeat the above operation until completion (SPI8
).

On the other hand, when printing on both sides, in order to detect a blank page, the back page (i.e.

data in order from the even numbered pages of the first set.

The page is transferred to the page memory 410 by the DMAC 407 (SF3), and if the blank page detection circuit 409 does not detect a blank page (SF3), it is printed out by the printing machine 403 using the same operation as the one-sided printing described above (SF3). , the above operations are repeated until the specified number of sheets have been printed (SF3).

If the data transferred from the optical disk drive device 402 is determined to be a blank page by the blank page detection circuit 409 (S P 7), this information is transmitted to the control circuit 408, and the control circuit 408 performs the next step. Change the page +m of the set and instruct it to be transferred in the order of t''& *vane (SF3), then print it out using the same operation as before (5P9),
The entire back side is printed (SPIO), and the user sets the paper again in the printing machine 403 with information that allows front side printing, and when a print instruction is given, the front page is transferred to the page memory 410 in order (SPIO).
PII), and further print fi from the page memory 410
403 and print out (SPI2),
In this way, the operation is performed until printing of all pages is completed (SPI3).

FIG. 6 illustrates one or more results.

a) is the state inside the optical disk drive/f drive device, b) is the state of single-sided printing S, and C) is the state of double-sided printing. ) This was done when printing out a manuscript such as the following.

FIG. 7 is a circuit diagram showing the blank page detection circuit in more detail.

Data line 1 is set to "L" for "white" and rHJ for "black". The AND circuit 2 is a circuit for detecting the above-mentioned "black", and the counters 3 and 4 are.

It is used to count the number of "black" characters, and the symbol 5 indicates a clock input, the symbol 6 indicates a clear input, and the symbol 7 indicates an output.

Next, the operation of the blank page detection circuit will be explained.

First, before transferring data for one page, the control circuit 4
08 clears counters 3 and 4 by clearing human power 6. Thereafter, data is transferred by the DMAC 407, "black" is detected by the AND circuit 2, and the counter 3.4 counts the number. When the count exceeds r256J, information is transmitted to the control circuit 408 via the signal line 7, and this information recognizes that the page is not a blank page.

In other words, after starting data transfer for one page,
If the count of "black" is less than r256J, the
Since the E information is not issued at y kW 7, it is determined that it is a blank vane.

Note that the number of counters 3.4 can be set arbitrarily, and is determined as appropriate, including margins for image noise and the like.6 [Effects of the Invention] According to the present invention, the number of counters 4 can be set arbitrarily, and is determined as appropriate, including margins for image noise. When recording information and reproducing that information from a recording medium, the efficiency is <1
1) It has the effect of being able to survive.

4, 1ff page 1 simple! Simple explanation: Figure fS1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a diagram showing an example of a double-sided cent original when the contact vane is a blank sheet.

FIG. 3 is a diagram showing the storage state of data on the optical disc.

FIG. 4 is a diagram showing a method for storing five-sided originals.

FIG. 5 is a flowchart showing the operation of the embodiment described above.

FIG. 6 is an explanatory diagram of the embodiment described in L, in which a) is a diagram showing the state inside the optical disk drive device, b) is a diagram showing the state of single-sided printing, and C) is a diagram showing the state of double-sided printing. FIG.

FIG. 7 is a block diagram showing an example of a blank page detection circuit.

401 --- Original reading device, 402 --- Optical disk drive device, 403 --- Printing machine 408 ---
1 control circuit, 409---Blank paper detection circuit.

Patent applicant: Canon Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 CG) (b) (C) ) tJ2 t, /)

Claims (2)

[Claims] (1) Recording means for visualizing filed image information on recording paper; Blank page detection means for detecting that the image information is blank page information; A document reproducing device comprising: visible imaging prevention means for inhibiting imaging. (2) In claim 1, the recording means is capable of recording on one side of the recording paper, and the visualization prevention means is capable of recording on one side of the recording paper, and the visualization prevention means is capable of recording on the white page information when recording on one side. A document reproducing device characterized in that it prevents visualization.