JPH10228141A - Device for reading and forming image of book document - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and surely set a final page or a finished page, to eliminate trouble in setting a page to be copied and to prevent operation procedure from getting complicated by stopping reading and page turning operation by a stopping means designating the final page to be read or outputted of a book document. SOLUTION: An operator sets a finishing sheet 400 functioning as the stopping means designating the final page to be read or outputted of the book document before starting copying. In a bound document mode, a bound document tray is drawn out and the bound document to be copied is set on right and left document platens while putting its cover in between, and the sheet 400 is set in a state where it is put between the pages where copying should be finished. When the page where the sheet 400 is put comes due to page-turning by repeating the page image reading and page turning operation, the turning operation begins after reading the spread right and left pages, but the page can not be turned, so that detecting operation due to non-turning begins. In the case of judging that the sheet 400 exists, operation stopping guidance is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for reading and forming an image of a book document, and is applicable to an image forming apparatus such as a copying machine, a facsimile, a printer, and the like, and an image reading apparatus connected to an image output apparatus and an image storage apparatus. It is.

[0002]

2. Description of the Related Art The present applicant has proposed an apparatus for reading and forming an image of a book document, outputting an image of a read page, and turning a page of the book document. In the case where this apparatus automatically copies some pages of a book document, it is necessary to designate a page to be copied of the book document. There are three types of copy page setting methods as follows. A “start-end page method” for inputting the open start page and the end page of the book document. For example, JP-A-7-110528 by the present applicant. "Page number method" for inputting the total number of pages to be copied. For example, Japanese Unexamined Patent Publication No. Hei.
No. gazette. “Setting 1 to 3 methods” in which pages not to be copied are skipped and a copy page range is input by a start page and an end page (details will be described later). For example, Japanese Patent Application Laid-Open No.
No. 110530. Any of the setting methods (1) to (4) is designated at the time of setting an image forming mode of a book document prior to copying.

[0003]

By the way, when a book manuscript is copied by such a book manuscript image reading and forming apparatus, it is necessary to copy a wide range of pages or copy all pages of one book manuscript. In particular, since this apparatus can automatically process page turning and copying of a book manuscript, it is often used to copy a whole book manuscript.

However, this apparatus has no means for designating copying of all pages of a book document. In this apparatus, when copying all pages after a certain page, or when copying one whole original, theoretically, the last page of the original is input when the end page of the above setting method is input. However, it is difficult to correctly specify the last page of the book manuscript, because there are some book manuscripts having no page number or pages having skipped pages.

Therefore, when copying all pages of a book original in the present apparatus, the start page and the end page for inputting the open start page and the end page of the book of the above-mentioned setting method are set to a maximum of the end page. Is set to a large number, such as "999", or by entering the total number of pages to be copied in the above setting method, and setting the total number of pages to a value sufficiently larger than the number of pages of the original document to start copying. Is attached to the apparatus, and when the desired last page is reached, the apparatus is stopped.

For this reason, in this type of apparatus, when copying all pages after a certain page or when copying a whole original, it is not possible to specify the copy range with one touch. Troublesome, and the setting method is not well understood.

Therefore, the present invention can easily and surely set the last page or the end page, and can improve the operability by eliminating the trouble of setting the copy page and complicating the operation procedure. It is an object of the present invention to provide an apparatus for reading and forming an image of a book document.

[0008]

The turning operation can be surely terminated by simply inserting a page obstructing the page turning operation of the apparatus between the last page and the end page. Even if the number of pages does not change or the number of pages jumps, it is possible to directly specify the final page or the end page by sandwiching it instead of the number of pages. Can be. This is the purpose of the present invention. More specifically, according to the first aspect of the present invention, in the reading and forming apparatus for reading an image of a book document, outputting an image of a read page, and turning the pages of the book document, Alternatively, a reading means and a page turning operation are stopped by a stop means for instructing the last page of the output. According to a second aspect of the present invention, in the configuration of the first aspect, the stopping means is a sheet-like member, and is set to be sandwiched between the last page of the book original or the next page after the last page, and is read on the corresponding page. And stop the operation of turning pages,
The configuration is adopted. According to a third aspect of the present invention, in the configuration of the first aspect, the stopping means is a sheet-shaped member, and has a property that it is not turned up by the turning operation of the apparatus. . According to a fourth aspect of the present invention, in the configuration of the third aspect, the stopping means has a configuration in which at least a part thereof is larger than the size of the book document. According to a fifth aspect of the present invention, in the configuration of the third aspect, the stopping means is formed of a material that curves together with the book. According to a sixth aspect of the present invention, in the configuration of the third aspect, the stopping means is formed of a material harder than the page paper of the book.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG.
The entire display unit is shown. FIG. 2 shows a copy page setting input operation unit of a conventional book document image forming apparatus.

In FIG. 1, an operation panel 99 has a clip holder 99-1 for placing a removed clip or a stapler needle, and a book original (hereinafter referred to as a bookbinding original).
Key 99-2 for setting a mode for automatically turning over and copying, a copy page setting key 99-3 for setting a page to be copied, and a setting for setting a copy page by skipping a page not to be copied 1 key 9
9-4a, setting 2 key 99-4b, setting 3 key 99-4
c, a copy format key 99-5 for selecting either an independent page mode in which the left and right pages of the bound document are independently copied and a double page mode in which the left and right pages are copied onto one sheet of paper. A copy start page key 99-6 for selecting a page to start copying when the independent page mode is designated by the copy format key 99-5, and a sort mode for sorting a plurality of copies one by one using a sorter. And a sorter key 99-7 for selecting one of a stack mode for sorting copies of a plurality of copies for each page.

Also, a single-sided original mode in which a two-sheet original and a page-limited bound original are copied onto both sides of one sheet using a two-sided sheet feeding table, and the left and right pages of a two-page spread original are combined into one sheet. Left / right page mode for copying on both sides of a book, front / back page mode for copying front and back pages of a two-page spread original independently on both sides of two sheets, or front / back page mode for copying four-page spread left / right pages on both sides of one sheet A liquid crystal display unit 99-9 for displaying the operation state of the apparatus and an error message, etc .; a center erasing key 99-10 for erasing the binding shadow of the copied image; A frame erasing key 99-11 for erasing a peripheral copy image, a front discharge key 99-12 for discharging a copy image upward, and moving a copy image position. Page limit key 99-14 for copying only the left or right page of a bound document when the independent page mode is designated by the move key 99-13, the copy format key 99-5, and the horizontal magnification of the copied image. And an independent scaling key 99-15 for independently scaling the vertical magnification, a center erasing width change key 99-16 for changing the erasing width when erasing the center, and for changing the erasing width when erasing the frame. Frame erase width changing key 99-17, a moving amount changing key 99-18 for changing the moving amount when moving the image position of the copy, the position of the bound original when the page is not turned or the image is missing Key 99-19 and right end key 99-2 for manually inputting
0, down key 99-21 and up key 99-22 for zooming the magnification of the copy image, and reduction key 99- for reducing and enlarging the fixed magnification of the copy image
23, an enlargement key 99-24, an equal-size key 99-25 for copying to the same size as the original, a paper key 99-26 for selecting a paper size to be copied, and a manual feed table for copying a bound original. A manual size selection key 99-27 for selecting the loaded paper, and a photo key 99 for selecting the type of the original (text / photo, photo).
-28, light key 99-29, dark key 99-30, automatic density key 99- for adjusting the density of the copied image
31, an abnormal state display section 99-32 for displaying an abnormal state of the apparatus, and a number excess display section 99-33 which is displayed when the number of copies exceeds the settable number.

A set number / copy number display section 99-34 displays the number of copies set before copying and displays the number of copies during copying, and a program key 99 for registering and recalling frequently used settings. -3
5. Numeric keys 99-36 for inputting numerical values such as the number of copies and magnification, and canceling (clearing) the number of sets, etc.
And a clear / stop key 99-37 for instructing stop / stop of copying, for canceling the set contents, returning to the screen when the power is turned on, or pressing and holding for about one second or more to set the remaining heat mode. Mode clear / remaining heat key 99-38, for confirming the number of copies set during copying or when copying is stopped in the middle (confirmation of the number), and confirming the number / enter for confirming the numerical value and specification (enter) Key 99-39, an interrupt key 99-4 for interrupting copying of a sheet original and copying another sheet original
0, start key 99-4 for starting copying
1, etc. are provided.

The setting of "start-end page method" is shown in FIG.
As shown in (a), first, the bookbinding original key 99-2 is pressed to set a bookbinding original, and the copy page setting key 99- is set.
In step 3, "start-end page" is selected (when the copy page setting key 99-3 is pressed, the order changes from "number of pages" to "start-end page"). Next, the number of pages to start copying is input using the numeric keys 99-36, and the "#" key (enter key 99-39) is pressed to confirm the input numerical value. If a mistake is made before pressing the "#" key, the clear stop key 99-37 is pressed. After pressing the "#" key, the procedure returns to the copy page setting procedure. Then, input the end page of the copy with ten keys 99-36,
Press the “#” key to confirm the entered value.

The setting of the “page number method” is shown in FIG.
As shown in (1), first, a bookbinding original key 99-2 is pressed to set a bookbinding original, and "number of pages" is selected by a copy page setting key 99-3. Then, the number of pages to be copied is input using the numeric keys 99-36, and the input numerical value is determined by pressing the "#" key.

To set the "setting 1 to 3 method", a bookbinding original is set by pressing a bookbinding original key 99-2, and then a setting 1 key 99-4a is pressed. Next, the number of pages to start copying is input with ten keys 99-36, and the entered numerical value is determined by pressing the “#” key.
Enter the value in 9-36, and press the “#” key to confirm the entered value. Then, the user presses the setting 2 key 99-4b, and repeats the above-described procedure for specifying the copy page range (start page and end page). If the user wishes to add more settings, the user presses the setting 3 key 99-4c and repeats the above-described procedure for specifying the copy page range. Then, the paper key 99-
At 26, a sheet is selected, and a start key 99-41 is pressed to start copying.

As described above, in this type of apparatus, all pages after a certain page are copied, and
When copying a book, there is a problem that the copy range cannot be specified by one touch, and the setting is troublesome and the setting method is not well understood. Therefore, in the book document image forming apparatus of the present invention, as shown in FIG. 3, the above-mentioned copy page setting input operation unit is provided with an “end sheet” input unit as a stop unit for instructing the last page.
In FIG. 3, when the page setting key 99-3 is pressed, every time the page setting key 99-3 is pressed, “start-end page” → “number of pages” →
The input mode of the copy page setting is switched in the order of “end sheet”, and the page setting selection display LED 99-3 is displayed.
a, 99-3b and 99-3c are sequentially turned on. Further, by switching the input mode of the copy page setting, the number of pages is guided to the liquid crystal display unit 99-9 as described later.

The operation guide and the warning of the image forming apparatus are displayed on an LCD panel capable of displaying characters of 20 digits and 2 lines arranged on an operation display section (liquid crystal display section 99-9). FIG. 4 shows a guidance display of the present apparatus.

FIG. 4A shows a general display during the copying of a bookbinding document, in which the displayed content is a bookbinding document (lower reading), the copy magnification is the same, and the spread right pages 15 to 48 are displayed. The setting indicates that 24 pages are being copied. That is, the upper left of the guidance display section displays the reading selection, the upper right displays the copy magnification, the lower left displays the number of set pages, and the lower right displays the number of pages being copied.

FIG. 4 (b) shows a general display during bookbinding original standby.
This shows a state in which the copy magnification is set to 1 and the total number of pages in the double-page spread mode is set to 40 pages. In this display, the number of pages being copied at the lower right is not displayed because the copy is not started yet.

As described above, at the time of general bookbinding document copying, a page input indicating the start page and the end page of the double-page bookbinding document or the number of image forming pages based on the total number of pages is performed, and the setting contents are displayed by displaying the set contents. Check and correct the number of pages you have done. Also, in the case where the start page is opened and set, as in the present apparatus, the bookbinding document is opened by viewing the display after setting the number of pages. The set number of pages is displayed at the time of standby before starting the operation and at the time of finishing reading the bound document.
In addition, the number of pages set and the number of pages during the copy operation are displayed at the time of reading and copying a bound document.

That is, after starting the operation, the book image forming apparatus automatically and continuously performs a series of operations such as reading a book document, forming an image of a read page, and turning a page of a read end page, and setting the same. The number of pages and the number of pages being executed during reading (or copying) of a bound document are displayed to inform the operator of the status and progress of the operation. Stop key 9
By pressing 9-37, the operation is interrupted or stopped midway depending on the execution page.

FIG. 5 shows a general display during copying of a sheet document, in which the display content is a sheet document (upper reading) and shows a 1: 1 copy.

FIG. 6 shows an example of a guidance display, in which the display content indicates that the apparatus has automatically stopped at the last page specified in the end sheet of the bookbinding document. This is guided when the process ends normally by specifying the end sheet.

FIG. 7 shows a page number setting display, from selection of a bookbinding original reading mode to setting of the number of pages. This page number setting is indispensable for automatic reading of a bound document, and is displayed with priority up to input selection. Here, by pressing the copy page setting key 99-3, “start to end page”, “number of pages”, or “end sheet” is selected. In the case of "start to end page" and "number of pages", the guidance display shown is continued until the number of pages is input by a key. In the “start-end page” input mode, in FIG. 7A, while the start-end page is being input, the numerical value portion blinks, and a numerical value is input with the ten keys 99-36, and the enter key 99-39 or the start-end page is input. With the key,
Enter and confirm the start page number. Thereafter, the process proceeds to the next guidance, in which a numeric value is input using the numeric keypad 99-36, and the number of end pages is input and confirmed using the enter key 99-39. In the "number of pages" input mode for inputting the total number of pages to be copied, a display as shown in FIG.
Enter the numerical value with 9-36, and press the enter key 99-39.
Enter and confirm the number of pages.

FIG. 8 shows a general display of the stop page mode for selecting copying up to the page sandwiching the end sheet of the set bookbinding document. FIG. 8A shows the display of the independent page mode when the end sheet mode is selected by pressing the copy page setting key 99-3. In the independent page, the copy start page is automatically selected with the right page as an initial. FIG. 8B shows the copy-in-progress display in the double-page spread mode, which indicates that 245 pages are being copied. Thereafter, two pages are added and displayed.

FIG. 9 shows the transition of the display at the time of shifting to the page setting. Each time the copy page setting key 99-3 is pressed, the designated contents are displayed in the order of “start to end page” → “number of pages” → “end sheet”. Guidance changes. The number of pages input and confirmed in the “start-end page” mode is the same as the “page number” mode, as shown in FIG.
Page ", and the copy page setting key 99-3
The value is also read out when the "start-end page" mode is set again by pressing. Here, if it is not necessary to correct the number of pages, the number of pages is determined by pressing the enter key 99-39.

FIGS. 10 to 13 show a control flow in each mode. These controls are performed by a main controller that performs mode control of image formation, which will be described later, and the IPU controller controls reading of an image, data processing, and page turning according to a command from the main controller. Further, the sequence controller controls the timing of adding the image forming unit. FIG. 10 shows a selection flow of the copy page setting,
FIG. 11 is a page number setting flow, FIG. 12 is a copy format selection flow, and FIG. 13 is a setting flow for starting left and right pages.

In the copy page setting selection flow shown in FIG. 10, each time the copy page setting key 99-3 is pressed by operating the apparatus shown in FIG. 3 and inputting the copy page setting key 99-3 on the display unit. Then, the mode is switched from the initial setting “start to end page” to “number of pages” → “end sheet”. Here, when the "end sheet" mode is selected, the number of pages is not specified by the ten keys 99-36 thereafter, and when the "start-end page" and "number of pages" input modes are selected, The number of pages is input and determined according to the page number setting flow shown in FIG.

In the flow for setting the number of pages shown in FIG.
The number of pages is set in a mode other than the “end sheet mode”, and the following two methods are available for setting the number of pages, which are selected by pressing each key. As the first method, "start-end page" is input by inputting two numerical values of a copy start page and an end page, calculating the number of pages from the copy start page to the end page, and copying the difference page. . The second method of inputting “number of pages” is a method of directly inputting the number of pages to be copied, and copying is repeated from the specified left and right pages by the specified number of pages. The latter is mainly used when a bound document does not have a page number or when pages are skipped.

The method of inputting the number of pages is performed as described above in accordance with the guidance display shown in FIGS. This page number input is indispensable for the repetitive operation of automatic page turning for reading a bound document, and the guidance is displayed first so as to be preferentially set in the bound document reading mode.

As shown in FIG. 11, the number of pages once determined in the "start to end page" and "page number" input modes is stored in the memory of the main controller.
Thereafter, when the copy page setting key 99-3 is pressed, the mode is switched from “start to end page” to “number of pages” → “end sheet”, and the mode returns to the “start to end page” mode again. , The number of previously input pages is read. The number of pages blinks in the guidance (indicating a state in which correction is possible), and when correction is required, a correction value is entered using the ten keys 99-36 and an enter key 99 is displayed.
Confirm with -39. If the enter key 99-39 is pressed without any correction, the value is determined. The state of the guidance at this time is as shown in FIG.

The copy format key 99-5 and its status display LEDs 99-5a and 99-5b shown in FIG. 1 operate and display a copy format mode. This copy format mode is effective in the bookbinding original reading mode, and as shown in the copy format selection flow of FIG.
(2) There is a double-page spread. This mode is switched by pressing the copy format key 99-5, and the LEDs 99-5a (independent pages) and 99-5b (spread pages) in the designated mode are alternately turned on. In this apparatus, the copy mode is prioritized, and the first setting is the "independent page mode" which is frequently used to form one page of a bound document on one page of transfer paper. The initial setting of the copy format mode when the power is turned on or when the bookbinding original reading mode is selected is also set to the “independent page mode”.

When the "independent page" mode of the copy format mode is designated, the image information of the page image of the read double-page spread original is read from the frame memory for each page,
Copy to page transfer paper. In the image alignment, as described later, a page image position is calculated based on detection of a page edge portion, and the page image position is arranged in a transfer sheet. On the other hand, when the "two-page spread" mode is designated, the image information of both pages of the read two-page spread book is continuously read from the frame memory and copied to one page of transfer paper.

Generally, books and books are printed on both sides, and office documents such as stapler and file also have double-sided originals. Therefore, in a book document image forming apparatus that reads a bookbinding document, forms an image of a read page, and turns the pages of the bookbinding document, an “independent page mode” in which an image for each page of the bookbinding document is formed on one sheet of paper. By providing a "spread left and right page mode" for forming images of both spread pages of a bound document on one sheet of paper,
Copies with different image forming modes can be obtained. Especially,
In the “independent page mode”, the page configuration is the same as that of the bookbinding document. In the “spread page mode”, the number of copies is two.
This makes it possible to form an image over a spread page such as gravure as a continuous image.

In this apparatus, image reading is controlled in the same manner by one one-way scanning regardless of the image forming mode. That is, both page images of a two-page spread original are read by one scan and written to the image storage means, and the "independent page mode"
Then, the read image is divided into image ranges for each page, read out from the storage unit, and an image is formed on one sheet of paper.
In the “spread-page mode”, the read image is read from the storage means in a continuous manner on both sides of the page, and an image of both sides of the bound document is formed on one sheet of paper.

The selection of the copy start page includes (1) a left page and (2) a right page as shown in the setting flow of the start left and right pages in FIG.
Either is selected by pressing 9-6. When the right page is designated in the copy start page mode, an image is formed from the right page of the read double-page spread original, and the pages are turned to further form an image for each page. The image is formed by reading out the image information of one page in the “independent page mode” from the frame memory. In the image alignment, as described later, the image position is calculated from the detection of the edge of the page, and the calculated image position is arranged in the transfer paper. On the other hand, when a supplementary page is specified in the copy start page mode, an image is formed from the left page of the read double-page spread original, and the page is turned to further form an image for each page.

The copy start page is selected in the "independent page mode" in which image formation is started by the designation and unnecessary pages are not copied. Also in the "two-page spread mode", control can be performed so that page images outside the designated page are not erased or formed. For example, in the "spread page mode", when the copy start page is selected as the right page, the image of the first spread left page portion is converted into white data and formed. In addition, as described above, when the last page is a spread left page, similarly, the image of the last spread right page portion can be converted into white data and formed.

Next, the scanner unit 30 for reading an image in the present apparatus will be described with reference to FIG. The scanning unit 200 scans the bound document BO placed and opened on the document table 1 by traveling inside the scanner unit 30 in the horizontal direction on the drawing. FIG. 15 shows a configuration diagram of a scanning drive system of the scanning unit 200.

FIG. 15 shows a scanning drive system of the scanning unit 200 as viewed from above the apparatus main body. In FIG.
And a three-stage pulley 302, a timing belt 313 is attached to the pulley 305 and a two-stage pulley 306 in front of the apparatus body.
, Respectively. here,
The rotation shafts of the pulley 304 and the pulley 305 are supported by springs 307 and 308, respectively, and apply predetermined tension to the timing belts 312 and 313. The three-stage pulley 302 is connected to a motor pulley 301 by a timing belt 310 and to a two-stage pulley 306 by a timing belt 311. Timing belt 3
11 obtains a predetermined tension by pulling the idler 303 outward with a spring 309. The scanning unit 200 is fixed to the respective timing belts 312 and 313 by clamps 315 on the inner side and the lower side, respectively, and is rotated via the respective timing belts 312 and 313 by the rotation of the scanner motor 106 that drives the rotation shaft of the motor pulley 301. Driven.

FIG. 16 shows the configuration of the scanning unit 200 in this apparatus. In FIG. 16, the scanning unit 200
Document holding rollers 281a and 281b
On the outside thereof, a sheet take-up roller 280 is provided.
a and 280b are each rotatably supported by the shaft.
The left and right independent document holding sheets 282a and 282b are wound around the center ends of the sheet pressing rollers 280a and 280b, respectively. The outside ends of the document holding sheets 282a and 282b are , Are fixed to side plates of the scanner unit 30, respectively.

As shown in FIG. 17, sheet take-up gears 232a and 232b are fixed to the outer ends of the take-up roller shafts 251a and 251b as supports for the sheet take-up rollers 280a and 280b. And
These sheet take-up gears 232a, 232b are fixed at both left and right ends to the side plate of the scanner unit 30, and mesh with a drive rack 231 having teeth over substantially the entire length via idle gears 233a, 233b. . Thereby, the scanning unit 200 in FIG.
Travels, the sheet take-up gears 232a, 232b rotate together with the idle gears 233a, 233b, the respective take-up roller shafts 251a, 251b, the respective spring springs (not shown), and the respective sheet take-up rollers 2
80a and 280b, each document holding sheet 282
a and 282b are pulled out and taken up, and the tension of the left and right sheet take-up rollers 280a and 280b is always maintained substantially constant.

On the other hand, as shown in FIG. 16, a platen glass 205 for reading a bound document and a turning belt 208 for turning a page of the bound document are arranged between the document pressing rollers 281a and 281b. As shown in FIG. 16, inside the platen glass 205, two fluorescent lamps 201 and 202 for illuminating a bound document are arranged on the left and right sides of the bound document reading unit, respectively. These fluorescent lights 2
The bookbinding manuscript image illuminated by 01 and 202 is shown in FIG.
In, after being reflected by the first mirror 219, the light is alternately reflected by the second mirror 220 and the third mirror 221, and finally transmitted through the lens 216 to be reduced and imaged on the CCD 101. Further, the turning belt 208 is stretched around a turning belt driving roller 223 and a turning roller 224, and a charging roller 225 is provided above the turning belt 208 and outside a portion slightly away from the turning belt driving roller 224. Are arranged in contact with each other. A pair of page guides 22 are provided above the document pressing roller 281a.
7, 228 are provided, and a page sensor 214 for detecting a document page is provided.

Next, the turning operation of the scanner unit 30 will be described. FIG. 18 is a view for explaining the operation of the page turning section of the scanning unit 200 in the present apparatus. The turning belt 208 in this apparatus is made of PET, P
C, PVC, etc., and the surface layer has a surface resistance of 10 ¹⁴
High resistance film of Ω or more, the back layer has a surface resistance of 10 ⁸
It is composed of a double-structure resin film made of a low-resistance film of Ω or less. Also, a turning belt driving roller 2
Reference numeral 23 denotes a roller formed by coating a conductive rubber on the surface of a grounded metal roller, and realizes reliable belt driving and grounding. Further, the charging roller 225 is formed of a metal roller.
At a predetermined timing, a high voltage of ± 2 kV is applied from the AC power supply 253 via the changeover switch 253a.

In FIG. 18, while the scanning unit 200 is running and the turning belt 208 is driven, the changeover switch 253a is turned on at a timing described later, and a high voltage of ± 2 kV is applied to the charging roller 225 from the AC power supply 253. Then, an alternating electric field is generated on the surface of the turning belt 208, and by the action of the alternating electric field, an attraction force is generated on the surface of the turning belt 208 so as to adsorb the uppermost page 254 of the bookbinding original BO in contact.

Next, a description will be given of page reading and page turning operations of the bookbinding original BO. First, in response to the reading start signal, the scanning unit 200 located at the center of the spread book BO starts moving rightward in FIG. 14 to pre-scan the right page end of the book BO. I do. The right page end position detected at this time is stored as first page turning position information. Next, the scanning unit 200 that has completed the prescan
Starts moving to the left after moving to the right end of the device,
The device is moved to the home position on the left side of the device. After that, as shown in FIG. 19, the scanning unit 200 starts moving rightward again, reads the original page of the bookbinding original BO from the left page to the right page, and when the page reading of the first page is completed, As shown in FIG. 20, the original scanning direction is reversed, and as shown in FIG. 21, the page turning operation of the right page of the bound original BO that has been read is started.

When the page turning operation of the bookbinding original BO is started, prior to the page turning operation, the charged pattern portion formed on the surface of the turning belt 208 overlaps the uppermost page 254 of the bookbinding original BO. And
The top end of the top page 254 is the turning belt 208.
After crossing the lower center, as shown in FIG.
The turning belt 208 is moved to a position shown by a solid line in FIG. 18 by the action of a solenoid (not shown). As a result, only the top page 254 of the bookbinding original BO is attracted to the surface of the turning belt 208 by the attraction force due to the uneven electric field of the charge pattern formed on the surface of the turning belt 208, and the top page The end of 254 is lifted with the turning belt 208. The attraction force due to the uneven electric field has a characteristic that pages other than the top page 254 are not attracted.

As described above, after turning the top page 254 of the bookbinding original BO up, the scanning unit 200 is moved toward the end home position as shown in FIG. As shown in FIG. 22, the topmost page 254 of the bookbinding original BO is reliably conveyed and passes between a pair of upper and lower page guides 227 and 228 (FIG. 16) arranged on the right side of the scanning unit 200. Thus, the leading end side is sent out to the right outside of the scanning unit 200. At this time, the page sensor 214 mounted on the page guide 227 on the upper side of the scanning unit 200
(FIG. 16) detects the original page sent to the right outside of the scanning unit 200, and determines that the original page has been normally turned.

As is apparent from the above description, in the present apparatus, the original page turned up by the page turning operation of the scanning unit 200 is held in a natural posture without being rounded or bent. The scanning unit 2 does not need to be provided in the scanning unit 200 because the raised original page is not damaged and the page storage means for storing the flipped original page is not required.
00 can be reduced in size.

In this apparatus, the page turning sensor 2
From the timing at which the right page edge is detected by 14,
The right edge of the page before turning the page can be calculated, and this value is used as the read image and the next page turning start position. Next, as shown in FIG. 23, the top page 254 of the bookbinding original BO is set to the binding portion BO of the bookbinding original BO.
When the scanning unit 200 is further moved toward the home position on the left side in a state where the scanning unit 200 is turned up to
As shown in FIG. 7, the turned-up original page is pulled by the binding portion BOa of the bookbinding original, and a pair of page guides 2 are formed.
27 and 228, the scanning unit 200 is overlapped on the left page of the bookbinding original BO.
Exhausted from inside. At this time, the page guides 227 and 2
Since the shape of the page discharged from the printer 28 always has the same form, the next page reading start position can be calculated at the timing when the end of the discharged page is detected by the page turning sensor 214.

Further, the scanner unit 30 has the configuration shown in FIG.
As shown in FIG.
1. A reference white plate 30-2 for reading a bound document, a home position sensor 30-3 for detecting a home position of the scanning unit 200, a scanner open detector 30-4 for detecting an open state of the scanner 30, and a Dew condensation prevention heater 30-5 for preventing dew condensation, platen 1
Platen raising motor 30-6 for raising the document, a booklet original set sensor 30-7 for detecting the setting state of the booklet original on the platen 1, and a booklet original tray set sensor 30- for detecting the setting state of the booklet tray. 8. Bookbinding document tray lock solenoid 30-for locking bookbinding document tray
9. A lower platen position detector 30-10 for detecting a lowermost position of the platen 1, a booklet tray setting solenoid 30-11 for setting a booklet tray, and a turning condition change for changing a page turning condition of a booklet. Switch 30
-11, and so on.

On the other hand, when reading a document set on the contact glass 206 of the scanner unit 30,
As shown in FIG. 4, the right end of the scale 207 disposed on the left side of the contact glass 206 serves as an end surface reference which is used as a reference set position of the document. In this manner, in this case, the reference set position is different from the reading start position of the bound document, and the configuration is set to the minimum size. In other words, by setting the reference set position of the document as the end face reference, the reading start point of the document set on the contact glass 206 is always constant, and the control is simplified.

In the sheet mode for reading the original on the contact glass 206, the scanning unit 200 moves to the left from the center home position and stops at the end home position detected by the end HP sensor. Wait for the input and the start button to be pressed. Here, the scale 20 is located on the right side of the contact glass 206, that is, on the page turning start side of the bound document.
7, the original is placed on both the original platen 1 and the contact glass 206, and scanning is performed by the scanning unit 200. Can read.

In the case of this configuration, the optical path of the reading optical path of the scanning unit 200 is switched at the time of turning over pages of a bookbinding document, as described later. With this configuration, the scanning direction of the scanning unit 200 in the sub-scanning direction is the same on the original platen 1 and on the contact glass 206, and the sheet discharge direction at the time of printing is the same. There is an advantage that becomes unnecessary.

Further, the bookbinding document BO is set on the document table 1, the sheet document SO is set on the contact glass 206, and the scanning unit 200 is scanned from the end home position to read the bookbinding document BO on the document table 1. While turning over the pages of the bookbinding original BO by the return scanning of the scanning unit 200, the sheet original SO on the contact glass 206 is turned over.
The reading mode can be set. In this case, even during the operation of turning over the read page of the bookbinding original BO, the sheet original SO is set on the contact glass 206 and the interruption mode is set, so that the operation of turning over the read page of the bookbinding original BO is interrupted. Both documents can be read without having to do so. Here, regardless of which side of the scale 207 is placed on the contact glass 206, the image read from the original on the contact glass 206 is mirror-inverted in the main scanning direction and stored in the frame memory.

In this example, the reference setting position of the document in the depth direction on the document table 1 and the contact glass 206 is configured such that the front side of the apparatus main body is used as an abutment reference. An original setting operation on the glass 206 is facilitated. Also, at the start of the operation of the scanning unit 200 in this example, the center H
The P sensor again confirms that the scanning unit 200 is at the center home position. When a start signal is sent from the operation panel 99, the scanning unit 200 moves to the left from the center home position,
It stops at the end home position detected by the end HP sensor.

When reading a document set on the contact glass 206, as shown in FIG. 16, a switching mirror (sub first mirror) 222 retracted to a position off the reading optical path of the scanning unit 200 is used. , FIG. 2
By the action of the mirror switching solenoid 255 shown in FIG. 7, the scanning unit 200 is moved to a position where it has advanced into the reading optical path of the scanning unit 200 as shown in FIG. By the movement of the switching mirror 222, as shown in FIG.
The optical path between the mirror 219 and the second mirror 220 is switched from the platen glass 205 shown by the broken line to the contact glass 206 shown by the solid line, and the two fluorescent lamps 20 are switched.
Contact glass 206 illuminated by 3,204
The original image on the second mirror 22
The light is alternately reflected by the 0 and third mirrors 221 and transmitted through the lens 216 to form a reduced image on the CCD 101 as a reading sensor.

FIG. 28 shows an image forming section of the present apparatus. The image forming unit 701 includes a printer main body 701 including a fixing unit 712 that feeds paper from paper feed trays 707 and 708, forms an image, and fixes an image on the paper, and a manual feed tray 709 as a peripheral device. , A sorter 702, a sheet reversing unit 703, and a bank 705 including a duplex unit 720 and a large-volume paper feed tray (LCT) 704. In the image formation, a toner image is formed on a photosensitive member 706 for forming an image by a series of processes of charging, exposure, and development, and the toner image is transferred to a fed sheet by a transfer unit 710.
After the sheet on which the toner image has been transferred is separated from the photoconductor 706 by the separator 711, the sheet is fixed and discharged outside the apparatus. After the transfer of the toner image onto the paper, the photoconductor 706 is cleaned and prepared for the next image formation. Also, the photoconductor 706
Writing of an image on the photosensitive member 706 is performed by exposing and scanning the photosensitive member 706 with the semiconductor laser LD.
An image pattern of electric charge is created on 06.

Next, a basic operation procedure in the bookbinding mode of the present apparatus will be described. (1) Binding original reading mode selection; when the apparatus is in the sheet original mode, a binding original key 99-
Press 2 to select "bookbinding original mode". (2) Copy mode set; Copy format selection: Independent page or facing page selection. Editing / processing selection: selection of sorting, double-sided, erased, standard, page-only, front-side discharge.
Page number setting: (Required) Enter the number of copy pages, start left and right pages. Other settings: Setting of copy function (magnification, paper selection, text, photo, density, number). (3) Bookbinding original set; open the original tray. Book set: The book is mounted on the platen with the binding part left end
Hold the right cover with the left holding plate and the left cover with the right holding plate, and open the copy start page of the book. Close the document tray (the document table is raised by the setting operation, and the upper surface of the page is flattened). (4) Copy; copy start: Press the start key 99-41 to start the copy process. Copy end: Automatic page turning / copy of the set number of pages. (5) Bookbinding document removal; document tray opening instruction: press bookbinding document tray set switch 30-8 to lower the document table and permit release. Open the document tray. Removing the book: Pull the release lever, release the left and right covers, and take out the book. Close the document tray.

Next, a book / sheet original reading apparatus TPS (Turn the Page Scanner) of the present apparatus is used.
r) The operation of the system (TPS operation mode) will be described.

(1) Reading mode: binding original reading: sub first mirror (switching mirror 222) is released,
The lower fluorescent lamp is turned on, and after shading correction is performed at the left H / P (home position), the carriage (scanning unit 200) is scanned rightward to read a double-page spread original at a time, and the F / M (frame memory) is read. ). Sheet document reading: The sub first mirror is inserted, the upper fluorescent lamp is turned on, the shading correction is performed by the left H / P, and then the carriage is scanned rightward to read the sheet document.
/ M (frame memory).

(2) Return mode; page turning:
In the binding original reading mode, apply a high voltage bias,
Scan the scanning turn unit to the left, stop when the turning roller reaches the right end of the spread book,
Raise the turning roller for 0.5 sec. Later, the carriage is scanned leftward. From the read sensor image, the right end and the upper end of the two-page spread original are detected, and the first page suction position and the image effective range in the main scanning direction are calculated. Further, at the time of page turning, the position of the right end and the left end of the two-page spread original is detected by a sensor on the page transport path (page turning sensor 214), and the image effective range in the sub-scanning direction is calculated. Unit return: In the sheet original reading mode, the scanning unit (scanning unit 200) is scanned leftward.

(3) Homing mode: When the power is turned on normally, the document table is lowered and retracted from the carriage. The carriage is scanned and set at the center H / P position.

(4) Pre-scan mode: The carriage is scanned to the left H / P to prepare for shading correction and start reading.

(5) Post-scanning mode: After the return operation is completed, the carriage is scanned and set at the center H / P, the original table is lowered and retracted from the carriage, and the bound original can be taken out.

Next, the TPS system will be described with reference to FIG. This system uses a book / sheet original reading device (TPS: Turn the Page Scanner).
r) a system for outputting a document read image by an electrophotographic printer, wherein the scanner unit 5 reads the document
00, and a printer 501 for forming an image. The scanner unit 500 includes a reading carriage (scanning unit) 200 for turning over and scanning a document. The scanning unit 200 includes an image reading plate (SBC) 101 having a CCD (charge coupled device) for reading a document image,
A VPU (Video Pr) that performs from analog image signal processing from the image reading plate 101 to A / D conversion.
(processing unit) 102, and a portion 502 for relaying a power supply line and a signal line of a load system such as a fluorescent lamp and its inverter power supply, a heater, a thermistor, a fan, a solenoid, and the like. This part 502 and VPU10
2 is an independent flexible cable, IPU10
3 is connected.

IPU (Image Processni)
g Unit; image processing apparatus) 103 is a DRAM which is detachable by a connector and stores a read image signal.
Equipped with a frame frame 104 consisting of modules,
The microcomputer in 103 is a scanning unit 200
Motor for scanning the document and D for driving the platen
A load such as a C motor is controlled via a motor drive circuit 503 and a signal from a sensor is taken in. Printer 50
A main control unit 107 includes a main control unit 107 for performing a copy mode control, taking in and displaying a key signal of the operation unit 99, and a sequence control unit for performing a copy timing control. The microcomputers of the control unit and the operation unit 99 transmit and receive commands by serial communication with each other. The main control board 107 includes inputs of sensors related to image formation of the printer 501, a motor,
A sequence control of image formation is performed by controlling a solenoid, a clutch and the like.

FIG. 30 shows a data flow block of an apparatus for copying and outputting an original read image of the TPS to an electrophotographic printer. This system is roughly divided into a TPS image reading unit, an image data processing unit, and an image forming unit. The image reading plate 101 arranged at the right end of the scanning reading turn-over unit (carriage) of the TPS has a CC
D (Charge Imaging Element) and VPU (Video Pr
processing unit) 102, the IPU (Im
Based on a reference signal from an image processing unit (image processing unit) 103, a drive signal is generated for the CCD, and correction from analog data output signals of the CCD to digital conversion is performed. The 8-bit read image data of each dot synchronized with the clock and the gate signal in the main scanning direction is output to the IPU 103 at a speed of about 7.5 MHz, and the IPU 103 performs processing such as scaling of image data from the VPU 102 and electronic processing. Performs high quality image processing. IPU1
In the final processing of step S03, gradation processing including gamma correction of image data is performed, the image data is converted into 4-bit video data suitable for writing, and the processed data is stored in the frame memory 10
4

In this TPS, the scanning speed for reading the original is 90 mm / sec. , Scanning speed of a sheet original at 120 mm / sec. And an image forming speed of 180 mm / sec.
Therefore, since there is a difference between the reading scanning speed and the image forming speed, the frame memory 104 for one page of A3 size is used for the speed buffer. Further, in order to read and scan by contacting the bound document, at the time of repeat copying, the image data may be repeatedly read out and output from the frame memory 104 a plurality of times.
Reference numeral 04 is effective for document protection during repeat copying. Further, in the continuous page printing in which the left and right pages of the booklet original are printed independently, the image of the left and right pages can be divided by using the frame memory 104 by one scanning and reading. There is no need for synchronous scanning with the image writing of the laser printer 501 and re-running.

Further, the frame memory 104 stores the IP
According to the speed correspondence of U103, the frame memory 104 of each dot 4-bit configuration is arranged after the IPU 103,
By storing the write data after image processing by the IPU 103 in the frame memory 104, the frame memory 10
Halving the capacity of 4

The capacity of the frame memory 104 of the TPS is 4
12 images per A3 size page with image data of 00 dpi
It is 8M bits, and is configured by a DRAM. IP
The input of image data from the U 103 to the frame memory 104 is performed in parallel for two dots of the image data.
Input sequentially at a speed of 8 MHz. On the other hand, the image data output from the frame memory 104 is the same as the image data 2
The main control board 107 performs the dots in parallel and synchronizes with the clock signal sent from the IPU 103 and the gate signals in the main scanning direction and the sub-scanning direction at a speed of about 7.5 MHz.
Are output sequentially. Further, a general-purpose SCSI interface is provided for transferring the read image data to another system device, for example, a printer or a workstation.

In the main control board 107, the image data output at high speed in accordance with the image forming speed of the printer by the frame memory 104 is combined with the serial data of about 15 MHz, and FIFO (First In First) is used.
Out), the speed is further increased in the main scanning direction, and about 18
Synchronize with the write clock of MHz. The 4-bit image data of each dot is pulse-width-modulated into emission time data, and transmitted to the controller of the LD (Laser Diode) 105 in PWM data in synchronization with a write clock. The LD controller includes an LD driver, and LD1
05 is emitted to expose and scan the photosensitive member to form an image.

The IPU 103 also controls the scanning of the TPS reading-turning unit (scanning unit 200). When reading a sheet document and reading a bookbinding document, the reading-turning unit operates at a scanning speed of 90 mm / sec. And at the time of zooming including zooming from 71 to 141%, the scanning carriage 200 is scanned at a linear speed of 1.41 to 0.71 times the zoom speed. When returning the reading turning unit to the scanning start position and when turning the pages of the bound original, 227 mm / sec. The stepping motor (scanner motor 106) of the scanner is driven at the speed.

The image detection circuit at the end of the document is arranged in the IPU and samples and determines pixel data before image scaling in the main scanning direction. The start and end of the detection are instructed by the microcomputer of the IPU, the sub-scanning direction detection is managed by the microcomputer according to the scanning position of the reading turning unit, and the main scanning direction detection is performed by the microcomputer by a pixel counter in the main scanning direction. refer. The microcomputer calculates the page suction position and the image range in the main scanning direction from the detected position.

Next, the operation timing of bookbinding originals will be described. FIG. 31 and FIG. 32 show the copy operation timing in the bookbinding original mode of the present apparatus. In the initial mode after the print key (start key 99-41) is pressed, edge detection by an image is performed. FIGS. 31 and 32 show the detection of the end portion based on the page storage position during the continuous copy mode. The page size of the bound document in each mode is A4 size, and two pages of the bound page of the bound document are continuously read by one scan of the carriage, the read data of A3 size is stored in the frame memory, and each output mode is set. In response, data is read from the frame memory to form an image, and is recorded on transfer paper.

FIG. 31 shows a 1-to-1 copy mode in which double-page spread output is performed on A3-size transfer paper and one copy is copied for a bound document. FIG. 32 shows a 1TO in which right and left pages are read on an A4 size transfer sheet and output on separate transfer sheets for each independent page, and one copy is copied on a bookbinding document.
One copy mode.

When the start key 99-41 for instructing the start of copying on the operation panel 99 is turned on, the scanning unit 200 is turned on.
Is driven in the forward direction, the scanning unit 200 located at the center is moved rightward (reading start direction), and the end position of the first page turn is detected first. I do. Next, at the book original mode operation timing in FIG. 16, the carriage (scanning unit 200) is moved at a high speed in the reading start direction at the left end. When the carriage moves to the reading start position at the left home position, the scanner motor 106 is driven in the normal rotation direction, and the fluorescent lamps 201 and 202 are turned on to start reading scanning of a bound document.

The microcomputer in the IPU 103 processes the original as a document image from the end of the left page of the two-page spread original, and reads the effective image area signal SFG in the reading sub-scanning direction.
Generate an ATE. Further, the microcomputer in the IPU 103 operates the data write signal memory W of the frame memory 104 based on the effective image area signal SFGATE to control the data write range.

When the reading scan is completed, a return page turning scan is started. In the first time, image formation is started after the image effective range is determined based on the page storing and discharging position.
In the second and subsequent times, image formation is started immediately after the end of the scanning in the image effective range calculated based on the previously detected page storage position.

The page range is detected when turning the page.
The position of the top page of the double-page spread is determined by the scanner motor
Detecting from the control address of the second page, calculating the center point of the bound booklet binding portion, and forming the reference position of the second image in the independent page output mode or the image read in the double-page output mode at the center of the transfer paper Used for etc.

The data read signal memory R of the frame memory 104 is operated by the effective image area signal PFGATE in the sub-scanning direction on the printer side, and data is image-output in synchronization with the printer. Further, at the time of turning a page, the edge of the page of the double-page spread original is repeatedly detected by the page sensor. By repeating the above steps, the double-page spread copy of the bookbinding original is performed while automatically turning the pages of the bookbinding original.

FIG. 32 shows 1TO output for each independent page.
One copy mode is shown. In the read mode, FIG.
In the image output at the time of turning a page, the data read signal memory R of the frame memory 104 is operated by two PFGATEs in accordance with the transfer paper that is continuously conveyed, and the output of the bound document is performed. Outputs data for each page as an image. For the image data of the right page of the bound manuscript, the address counter of the frame memory 104 is set to P
By stopping by masking with FGATE,
The image data linked to the first image of the left page of the bound document is read out at a transfer paper interval by the second PFGATE signal.

The present apparatus performs a stable page turning operation with respect to the bookbinding original page suction / separation method by the displacement of the suction roller. In this method, only the leading end of the page is sucked and displaced upward to guide the page to the page storage unit, so that the sucking position is important. As described above, the page storage sensor detects the end of the page of the bound document at the time of scanning the page of the bound document, and determines the suction / separation operation position with respect to the end of the page of the bound document which is changed by repeating the page turning. That is, the end of the page on the scanning end side is detected from the page storage position data, the ascent position of the attraction roller at the time of page turning scanning is determined, and control is performed so that the same amount of pages is always absorbed and separated.

Next, detection of the end of the original in the read image / sub-scan direction will be described. FIG. 33 shows data of detection of the right end of a two-page spread original by a reading sensor in the image reading method of the present invention. In the case of the spread size B4, the detected edge portion of the book document is approximately one position from the center set position (center home position) in the sub-scanning direction position.
The position is 80 mm. At the time of page turning scanning after the image reading scanning, detection is started from the position of the outer frame portion of the original table, and the outer frame portion of the original table is read first, and then the black original table portion is read. In a certain manuscript book, the step between the inside of the right cover part and the page edge is read, and then the background density, which is the margin of the top page, is read, and an image is generally detected after a margin of more than ten millimeters. By comparing the continuous data in the sub-scanning direction with the threshold,
The start of the margin is detected and its position is determined as the end of the page.

The end of the original in the sub-scanning direction is detected by a change in the information read by a specific pixel of the reading sensor in the sub-scanning direction. As for the specific pixels in the main scanning direction, the 1024th pixel of 64 mm from the CCD reference in front of the apparatus is set to the 1024th pixel in FIG.
And the data latch circuit 301 performs sampling for each main scanning line. Read 8
The upper 4-bit data of the bit data is compared with a detection threshold by the digital comparator circuit 302. This threshold is set by the microcomputer. D-
The determination data is delayed by the F / F circuits 303 and 304, and a detection signal is generated by the AND circuit 305 when the value of the data of the specific pixel of the reading sensor is larger than the threshold value by three pixels in the sub-scanning direction, Notify the controller. In reading for edge detection, scanning is started to the left from the black original platen at the right end of the scanning or the outer frame of the table, and the controller cancels the detection start reset signal. A striped portion continuous in the main scanning direction due to the cover or the edge of the paper is detected, and image information on the right page from the uppermost page end of the book is randomly detected. The background of most books is white, and generally, there is no character or image in the frame part which is more than ten millimeters from the edge of the book original. Therefore, when a white uniform color is generated at or above the threshold value, it is detected as a blank portion of the page. For the determination, the accuracy can be improved by using a plurality of sensor outputs in the main scanning direction. It is also effective to increase the number of determination pixels from three consecutive pixels in this example, or to change the comparison threshold value in accordance with the system or the applicable document. As a result, in the case of the example of reading the end of the book original in FIG. 33, the end of the book original is detected as a point 180 mm from the home position.

The leading edge and the trailing edge of the image change depending on the size of the book set based on the center binding portion. In addition, the page position changes according to the double-page spread, and the page length changes according to the binding portion. The detection of the end of the original in the sub-scanning direction is used in the present apparatus to calculate a page suction position for turning a page. In another embodiment, the left edge of a two-page spread original can also be detected from the left side of the original platen when scanning the original.
The detection of the end of the original in the sub-scanning direction is used to determine the effective image range of the original in the sub-scanning direction. For example, in copying, it is used as a register for determining the image position on the transfer paper. Further, the out-of-range image is automatically erased to prevent a useless black solid image. Further, when applied to a file system or the like, the data is reduced and the amount of memory is saved.

Next, detection of the end of the original in the main scanning direction of the read image will be described. FIG. 35 shows data for detecting the upper end of a two-page spread original by a reading sensor in the image reading method of the present invention. In the case of the spread size B4, the detected edge portion of the book document is located at a position approximately 270 mm from the front set reference position in the main scanning direction. At the page suction and rising position when the page turning scan is stopped after the image reading scan, detection starts in the forward direction from the platen outer frame position, first the black platen outer frame portion, and then the black platen portion Read. In a certain manuscript book, the inside of the right cover part is read, and then the background density, which is the margin of the topmost page, is read. The start of the margin is detected by comparing the continuous data in the main scanning direction with the threshold value, and the position is determined as the page end.

FIG. 36 shows a detection circuit at the end of the book document in the main scanning direction. This is performed based on a change in read data of one line of the main scan of the read sensor. The double-page spread manuscript is shown in FIG.
As shown in (a), the left end of the binding portion is aligned on the book table, and set and fixed in front of the center. In order to detect the original document placement reference from the near side and from the back side of the document table, data in a certain main scanning direction is rearranged in reverse order using FILO (first in / last out) 306 for one line. The data latch circuit 307 samples each main scanning line, and the upper 4 bits of the read 8 bits are compared with the detection threshold by the digital comparator circuit 308. This threshold is set by the controller. The judgment data is delayed by the DF / F circuits 309 and 310, and a detection signal is generated by the AND circuit 311 when the value of the data of the specific pixel of the reading sensor is larger than the threshold value for three consecutive pixels in the main scanning direction. Then, the counter 312 for counting pixels in the main scanning direction is masked by the OR circuit 313 as a gate circuit and stopped, and the counter value is notified to the controller. Reading for edge detection is performed in the forward direction from the black book plate on the back side or the outer frame portion of the plate, and the occurrence of page background in the book document is detected in the same manner as described above. This detection is performed in the main scanning direction when the controller does not perform the scanning control and the unit scan for stopping the page is taken for a long processing time, and the controller cancels the reset signal upon detection.

The detection of the end portion of the original in the main scanning direction is used to determine the effective image area in the main scanning direction of the original having a relatively large irregular size. An erasing process is performed to prevent useless black solid images. Further, when applied to a file system or the like, the data is reduced and the amount of memory is saved. that's all,
In this embodiment, the end position of a page is detected by using a circuit as shown in FIGS. 34 and 36. The image data is taken into the CPU controlling the IPU.
If the method is compared with the threshold value, the processing hardware cost is unnecessary. Further, detection accuracy can be improved by detection using data of a plurality of pixels or a change in threshold value.

Next, the detection of the end of the original in the sub-scanning direction by the page sensor will be described. In the detection of the page edge after the first page turning, the edge position of the top page is accurately and stably calculated using the page sensor (transmission type) in the page turning transport path. In this apparatus, since the front cover of the original is fixed to the original platen, deviation during scanning of the original is small. In addition, the book original tends to have a very small displacement due to the turning of one page.
In this apparatus, a transmissive page sensor 315 is used for page detection as shown in FIG. The page sensor 315 includes a light emitting diode 315a as a light emitting element on the upper page transport guide 316 and a photodiode 315b as a light receiving element below the lower page transport guide 317. Holes 316 are provided in the page transport guides 316 and 317.
a, 317a are provided, and the light emitting diode 315a and the photodiode 315b are arranged obliquely to the vertical direction of the detection position of the page transport unit. For this reason, the paper dust generated by storing the pages of the book does not accumulate in the sensor unit but falls downward. Since this method detects the page after one page separation,
Regardless of the manuscript, the detection accuracy is extremely high, varying within 1 mm. Further, the page sensor 315 is also used as a sensor for detecting a page jam that has not been stored and has not been discharged when turning a page.

The scanning unit 200 shown in FIG. 14 turns to the left after reading a double-page spread original BO, and turns over the pages of the original BO. The uppermost right page end of the book BO is attracted to the turning belt 208, and the scanning unit 20
When the scanning of 0 is temporarily stopped, the turning belt 208 rises and the turning page is guided in the direction of the page transport path. The scanning unit 200 is further scanned leftward, the turning pages are stored in the page transport path, and the leading end of the pages comes out of the scanning unit 200. The trajectory of the turning page rises and the turning belt 208
Is always substantially constant along the line and is determined by the mechanical layout. The page sensor 315 is disposed near the entrance of the page storage section formed by a page transport path and detects a page of a book original. The microcomputer in the IPU 103 detects that the page sensor 315 detects the turning page, and that the turning page is positioned on the original from the position of the scanning unit 200 at the turning page storage detecting position of the turning page storage unit. Calculate the position of the right end of the page to be turned when Therefore, by detecting the page edge after one page separation, the page edge position in the turning start direction (right in the present apparatus) of the double-page spread original BO is accurately and reliably detected, and the image effective area of the book original BO is detected. And the end of book B
In O, since the displacement of the position due to page turning of one page is extremely small, the next page turning position is calculated and corrected.

The control of the page suction position based on the above calculation result is performed as follows. The present apparatus has a suction width of approximately 40 mm in which the turning belt 208 is brought into contact with the right end of the page and lifted. When the timing of detecting the storage of the turning pages of the book BO in the turning-page storing section is earlier than the target timing, the suction width thereof is larger than the target of 40 mm. Is displaced earlier. For example, when the detection position is 2 mm earlier in distance, the suction width is estimated to be 42 mm, and the next page suction position is changed to the right by the address of the scanning unit 200 by 2 mm. On the other hand, when the timing of detecting the storage of the turning pages of the book BO in the turning page storage section is later than the target timing, the suction width is set to the target 40 m.
m, the suction and ascending timing of the page end in the turning start direction of the two-page spread original BO is displaced in a slower direction. As a result, the page suction width is controlled to a constant value, preventing turning over, turning over many sheets, and preventing damage to the original.
A stable repetitive operation is performed.

When the scanning unit 200 is further scanned to the left after the page is stored in the page turning section, the double-page spread original is constrained at the center binding section, so that the page is turned at the binding section. The paper is ejected from the turning page transport path while drawing a U-shaped trajectory. The trajectory of the turning page discharge is also turned by the turning page transport path and the pressing roller 281a.
Is always almost constant along. The microcomputer in the IPU 103 detects the turning-over page from the position of the scanning unit 200 at the timing of detecting the start of turning over the original in the turning-over page storage unit by the page sensor 315, that is, the timing of detecting the start of discharging of the turning-over original in the turning-over page storage unit. The right end position to be placed on the upper left of the original is calculated from the output signal of the page storage sensor 315.

The microcomputer in the IPU 103 calculates the start position address A and the end position address B of the effective image range between the right end and the left end of the calculated book document.
Since the center position is the binding portion of the double-page spread of the book document, the center binding portion address C is calculated as follows. C = (A + B) / 2 Thereby, the reference position of the page arrangement at the time of copying the two-page spread original image read at a time is obtained. Also, since the image of the central binding portion of a two-page spread original tends to be shaded or distorted,
The microcomputer in U103 surely erases the image at that position. Further, the microcomputer in the IPU 103 registers the right page at the time of page independent output using the calculated center binding portion address C.

As described above, the position of the uppermost double-page spread of a double-page spread original is repeatedly shifted by repeating the page turning, but the shift by one page turning is extremely small. In addition, the positional deviation in the repeated turning of page 10 is 1 mm.
Because of the following, the deviation of the image position (copy resist) is small. Therefore, the calculation of the book original page suction position is performed a plurality of times by repeatedly performing the page turning scan, for example, one page turning operation for ten pages.
By performing this operation twice and updating the position data, the time required for the scanning unit 200 to calculate the end of the page of the original document and reduce the time.

Next, a description will be given of an end sheet as stop means for instructing the last page of reading or outputting the book document. The end sheet 400 in the present embodiment is shown in FIG.
As shown in the figure, the vertical size is slightly larger than the A5 size.
It is formed of a resin material in the form of a sheet having a width of 230 mm and a width of 230 mm, and has almost the same elasticity as paper, and is freely curved together with a group of pages for bookbinding. End sheet 40
The right side of 0 is a solid black portion 400a, which is set between pages so as to protrude beyond the page position. In the case of a booklet of A4 size, which is the maximum page size, the horizontal length of the page is 210 mm, and the end sheet 400 protrudes at least 20 mm from the page when sandwiched between pages. In the case of a booklet of a smaller size, the width of the protrusion becomes larger. The solid black portion 400a is black, similar to the platen, and makes it easier to detect the position of the right end of the page when the above-described first page turning position is detected. On the left side of the end sheet 400 is a printing unit 400b, which describes how to use the end sheet 400 and its illustration.

The setting of the end sheet 400 is performed by the operator according to the following procedure before copying. In the bookbinding document mode, the bookbinding document tray is pulled out, and bookbinding documents to be copied are set on the left and right document tables with the front cover thereof interposed therebetween. The end sheet 400 is set between pages for which copying is to be ended.
For example, when specifying from page 1 of the spread right page to page 100, page 100 is Mihiraki left page,
Page 101 is a right spread page. The end sheet 400 is set between the 100 and 101 pages. After opening the copy start page, adjust the page height so that the left and right page heights are substantially flat, and close the bookbinding document tray. When the copy mode is set and the print key is pressed, the reading and page turning operations are started. FIG. 37 shows a state where the end sheet 400 is set on the bookbinding document BO set on the document tray.

The image forming apparatus of the present invention has a function of determining whether or not a page turning operation is possible. The method is based on the page guides 227 and 2 for storing the pages.
Page sensor 214 for detecting the presence or absence of a page in 28 parts
Is determined by the presence or absence of page detection by the page sensor 214 at a predetermined position of the scanning unit 200 at the time of turning scanning. When a page is not detected, it is determined that the page is turned over or the last page. Also, this page sensor 2
14 is used for detecting the page end position in addition to the turning-over detection. When the discharge of the page is completed, and when the scanning unit 200 reaches the leftmost end, there is a page.
Abnormality such as peeling of the binding part is detected. This apparatus stops when the page is not turned, such as a cardboard page, or when there is no last page to be turned, upon detection of turning over.
In addition, since there is a case where it is not accidentally turned over, when turning over is detected at the time of turning scanning, it is moved to the right end again and the turning operation is repeated three times thereafter.

The stop operation by the end sheet 400 will be described below. The page image reading and the page turning are repeated, and when the page is turned to the page sandwiching the end sheet 400, the page turning left and right pages are read, and then the turning operation is started. However, the end of the end sheet 400 protrudes to the right side of the page, and at the same turning position as in the previous time, the end sheet 400 tries to be sucked over the right side of the position of the turning belt 208, so that the page guide 227 is formed. , 228 cannot be stored. The turning operation is repeated as described above. However, since the turning operation is not performed, the detection operation is started due to the non-turning operation. In the detection, as shown in FIG. 37A, an image change from the back side in the main scanning direction is checked. In the case of a small-sized page, the black portion of the document table is detected first, and then the right page image is detected. Then, when black pixels from substantially the center in the main scanning direction are continuously detected, it is determined as an end sheet, and the operation is stopped and guidance is performed as described above. On the other hand, if the end sheet 400 is not detected, it is processed as normal turning over.
When the end sheet 400 is sandwiched between pages, the “start to end page” or “number of pages” is determined and copied by the copy page setting input operation unit, and the end sheet is detected before the set end page. Similarly, the end sheet is similarly determined by turning over and image detection, and the operation is similarly stopped,
Guidance is given with the warning "Setting page Yorimaeni Soryo Sheet Gaarimas". If the end sheet is not sandwiched between pages in advance despite copying in the end sheet mode, the end sheet is not detected until the last page of the document, and the operation is repeated until the last page of the document field as described above. The operation is stopped by detecting the turning of the last page, and a warning of “Saishu page death” is issued.

In the above embodiment, the example in which the key input means for designating the end sheet mode is provided has been described. However, another embodiment in which the key input means is not provided will be described. When the operation is started by the print key without inputting the numerical values of "start to end page" or "number of pages", reading and turning the page to the end sheet position are repeated as the end sheet mode, and the operation is repeated. Stop. If there is no end sheet, the operation stops at the last page of the book. In the setting flow of the start left and right pages in FIG. 13, a flow in which copying is started in a state where the number of pages is not input and the operation shifts to a stop operation in an end sheet is shown.

Next, another embodiment of the end sheet 400 will be described. The entire end sheet 400 or the right half corresponding to the turning position is made of a resin material harder than the page paper of the book. The size is 150 mm long,
At a width of 150 mm, the width is smaller than that of the above embodiment. In the case of this rigid end sheet 400,
Similarly, when sandwiched between the end pages, it is not necessary to protrude from the end of the page, and the set state may be substantially aligned with the end of the page.
In the case of the hard end sheet 400, even if the end sheet 400 is sucked and lifted by the turning operation, the end sheet 400 does not bend like the paper of the original document, so that the end sheet 400 is not turned and is not turned. Thereafter, the stop processing is performed similarly. In the present embodiment, if the left half of the end sheet 400 is configured to be curved together with the book original, the reading and the contact scanning for turning the pages are not hindered.

[0101]

According to the first aspect of the present invention, the stop means for instructing the last page of reading or outputting the original is provided, so that even if the number of pages of the original is unknown, the desired final page can be obtained. Can be specified, and the operability of the operator can be improved. According to the second aspect of the present invention, since the stopping means is formed in a sheet shape to be sandwiched at a position where the reading and page turning operations are to be terminated, it is easy to simply sandwich the last page without considering the number of pages. It is possible to specify the address by a simple operation, and to facilitate and speed up the operability. In addition, since the configuration is extremely simple in that an object is physically sandwiched instead of being controlled by numerical input, the last page can be reliably specified without increasing costs.

According to the third aspect of the present invention, the stop means is formed in a sheet shape sandwiched at a position where the reading and page turning operations are to be terminated, and is not turned up by the book turning structure. The operation can be reliably stopped at the specified last page. According to the fourth aspect of the present invention, the stopping means is formed in a sheet shape sandwiched at a position where the reading and page turning operations are to be terminated, and at least a part thereof is larger than the size of the book original. However, when it is sandwiched between the last pages, it always protrudes from the original document, turning over occurs at that position, and the operation can be reliably stopped.

According to the fifth aspect of the present invention, the stopping means is formed in a sheet shape sandwiched at a position where the reading and page turning operations are to be completed, and has the same degree of elasticity as the page paper of the book. Since it is configured to be freely curved together with the page of the book, even if the group of pages of the book is distorted, it can follow the distortion, so that the reading and the contact scanning of the page turning can be prevented. According to the invention described in claim 6, the stop means is formed in a sheet shape sandwiched at a position where the reading and page turning operations are to be terminated, and is formed of a material harder than the page paper of the book. Therefore, since the stopping means does not bend in the turning operation, the turning can occur at that position, and the operation can be surely stopped.

[Brief description of the drawings]

FIG. 1 is an overall view of an operation / display unit of a book image forming apparatus.

FIG. 2 is a partial view showing a copy page setting input operation unit of a conventional book document image forming apparatus.

FIG. 3 is a partial view showing an input operation unit of copy page setting of the book image forming apparatus of the present invention.

FIG. 4 is a diagram showing a general guidance display during book copy and standby of the book image forming apparatus of the present invention.

FIG. 5 is a view showing a general guidance display during copying of a sheet document of the book document image forming apparatus of the present invention.

FIG. 6 is a diagram showing a guidance display example of the book image forming apparatus of the present invention.

FIG. 7 is a diagram showing a guidance display when the number of pages is set in the book image forming apparatus of the present invention.

FIG. 8 is a diagram illustrating a general guidance display when an end sheet is set in the book image forming apparatus of the present invention and during copying.

FIG. 9 is a diagram showing a transition of a guidance display at the time of shifting to page setting of the book document image forming apparatus of the present invention.

FIG. 10 is a flowchart of selection of a copy page setting of the book image forming apparatus of the present invention.

FIG. 11 is a flowchart of setting the number of pages in the book image forming apparatus of the present invention.

FIG. 12 is a flowchart of a copy format selection of the book image forming apparatus of the present invention.

FIG. 13 is a flowchart illustrating setting of left and right pages to be started by the book image forming apparatus according to the present invention.

FIG. 14 is a schematic cross-sectional view showing the overall configuration of a book / sheet document reading device (TPS) of the book document image forming apparatus of the present invention.

FIG. 15 is a schematic plan view showing a driving mechanism of a scanning unit in the TPS.

FIG. 16 is a schematic sectional view of the scanning unit.

FIG. 17 is a schematic side view of a turning belt driving mechanism in the scanning unit.

FIG. 18 is a schematic sectional view of a main part of the scanning unit showing a page turning operation of the scanning unit in the TPS.

FIG. 19 is a transition diagram at the left page image reading position of the scanning unit in the page turning operation mode of the scanning unit.

FIG. 20 is a transition diagram at the right page image reading completion position of the scanning unit in the page turning operation mode of the scanning unit.

FIG. 21 is a transition diagram at a right page turning start position of the scanning unit in the page turning operation mode of the scanning unit.

FIG. 22 is a transition diagram in the middle of turning the right page of the scanning unit in the page turning operation mode of the scanning unit.

FIG. 23 is a transition diagram at the right page turning end position of the scanning unit in the page turning operation mode of the scanning unit.

FIG. 24 is a transition diagram of the scanning unit in the middle of discharging the right page in the page turning operation mode.

FIG. 25 is a schematic explanatory view of a configuration of a carriage in the TPS.

FIG. 26 is a schematic explanatory diagram of a configuration of a reading optical system of the scanning unit.

FIG. 27 is a perspective view showing a driving device of a sub first mirror in the reading optical system of the scanning unit.

FIG. 28 is a schematic diagram showing a configuration of an image forming unit of the book document image forming apparatus of the present invention.

FIG. 29 is a block diagram showing a system configuration for copying and outputting a document read image of the TPS to an electrophotographic printer.

FIG. 30 is a block diagram showing a data flow block of an apparatus for copying and outputting a document read image of the TPS to an electrophotographic printer.

FIG. 31 is a timing chart showing bookbinding mode operation timings in the TPS double-page output / 1TO1 copy mode.

FIG. 32 is a timing chart showing bookbinding document mode operation timings in the TPS independent page output / 1TO1 copy mode.

FIG. 33 is a diagram showing read data of an end of a book in the sub-scanning direction of the TPS.

FIG. 34 is a circuit diagram of an image detection circuit at an end of a book in the sub-scanning direction of the TPS.

FIG. 35 is a diagram showing read data of an end of a book in the main scanning direction of the TPS.

FIG. 36 is a circuit diagram of an image detection circuit at an end of a book in the main scanning direction of the TPS.

FIGS. 37A and 37B are diagrams showing a detection direction of the end of the book original of the TPS and a setting state of an end sheet, wherein FIG. 37A is a plan view and FIG.
Is a front view with the platen omitted.

FIG. 38 is a schematic sectional view showing the configuration and arrangement of the transmissive page sensor of the TPS.

FIG. 39 is a plan view showing an end sheet of the TPS.

[Explanation of symbols]

 400 End sheet as stop means BO Book manuscript

Claims (6)

[Claims] 1. An apparatus for reading and forming an image of a book, outputting an image of a read page, and turning over the pages of the book, instructing the last page of reading or outputting the book. An apparatus for reading and forming a book image, wherein the stopping means stops reading and page turning operations. 2. The method according to claim 1, wherein the stopping means is a sheet-like member, and is set to be sandwiched between a last page of the book original or a page next to the last page, and stops reading and page turning operations on the corresponding page. 2. An apparatus for reading and forming a book document image according to claim 1, wherein: 3. An apparatus according to claim 1, wherein said stopping means is a sheet-like member, and has a property not to be turned up by the turning operation of said apparatus. . 4. An apparatus for reading and forming an image of a book document according to claim 3, wherein said stop means is at least partially larger than the size of the book document. 5. The book image reading and forming apparatus according to claim 3, wherein said stopping means is formed of a material which is curved together with the book document. 6. An apparatus according to claim 3, wherein said stopping means is made of a material harder than a page of the book.