JPH06289674A - Copying device - Google Patents

Abstract

PURPOSE:To surely obtain an Nin1 copy where plural documents are copied on a sheet of transfer paper in regular order or desired order by easy operation. CONSTITUTION:In the case of specifying any of a 1st placing mode in which the document is successively placed on a platen glass in separation order by a document selection key and a 2nd placing mode in which the document successively separated is placed on the platen glass in order different from the separation order, a CPU 901 controls to separate and feed the respective documents from an RDF based on a mode specifying state, so that the plural documents are placed on the platen glass in order different from the separation order.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying apparatus to which a circulating type document feeder capable of feeding and discharging a plurality of originals at a predetermined position on a document table can be connected, and more particularly, a plurality of originals The present invention relates to a copying apparatus capable of copying on a sheet of transfer paper.

[0002]

2. Description of the Related Art Heretofore, as a copying apparatus of this type, there has been proposed a copying apparatus to which a document feeding apparatus capable of feeding and discharging a plurality of (for example, two) documents at a predetermined position on a document table can be connected. The load on the document table is reduced.

Further, when a mode for placing a plurality of originals on the platen glass is selected by the original feeding device,
All originals were transported and copied in order. At this time, when the number of originals is less than the number of originals to be placed on the platen glass, the originals are placed in a fixed direction and placed.

Further, when the above-mentioned plural-placing mode is selected, all the originals are placed and copied on the platen glass in the plural-placing mode.

On the other hand, in this type of copying apparatus, the frame of the placed document is erased to prevent the toner from being transferred to the four corners of the sheet, so that a clear copy can be obtained. There were also some.

[0006]

However, when the above-mentioned plural loading mode is selected, since the character arrangement on the original does not distinguish between vertical writing and horizontal writing, the page arrangement of the copied original is reversed horizontally. There was a problem to do.

Further, when the above-described plural-placing mode is selected, all the originals are placed on the platen glass in the plural-placing mode, so that the originals to be copied on one transfer paper have a page order. There was a problem that it was copied (bringing apart) and copied over two sheets.

Further, in the case where the above-mentioned plural loading mode is selected and the number of originals is less than the number of originals to be placed on the platen glass, the originals are packed in a predetermined direction and placed. There is a problem in that the images are biased in a fixed direction on the transfer paper, and the images may not line up in the page order.

Further, when the number of originals fed and placed on the platen glass is arbitrary, there is a problem that the effective frame erasing copying process cannot be executed.

Further, when the document is fed on the platen glass and the document is placed with a space between the sheets, there are many problems such that an effective sheet-space erasing copying process cannot be executed.

The present invention has been made in order to solve the above-mentioned problems, and by controlling the state of document separation and feeding from the document feeding means onto the platen glass, a regular sheet can be formed on one transfer sheet. An object of the present invention is to provide a copying apparatus which can surely obtain an output obtained by copying a plurality of originals in order or in a desired order by a simple operation.

[0012]

SUMMARY OF THE INVENTION In a copying apparatus according to the present invention, a first placement mode for placing sequentially separated originals on the platen glass and an order for sequentially separated originals are Based on the mode designating means for designating any one of the second placement modes to be placed on the platen glass in a different order, and the separation of each document from the document feeding means based on the mode designating state by the mode designating means. And a feeding control means for controlling the feeding and placing the original on the platen glass in an order different from the separation order.

Further, a document number designating unit for designating the number of documents placed on the platen glass is provided, and the feeding control unit separates and feeds each document according to the number designated by the document number designating unit. It is configured to control the placement order of.

Further, a document number designating unit for designating the number of documents sequentially separated and fed from the document feeding unit and simultaneously placed on the platen glass, and a document for setting the number of documents to be copied onto one transfer sheet. A number of sheets setting means and a control means for controlling the number of sheets fed from the sheet feeding means based on the number of sheets specified in the number of sheets setting means while the number of sheets setting by the number of sheets setting means is set. Is.

Further, the set number of sheets set by the number-of-documents setting means and the designated number of sheets specified by the number-of-original-sheets designating means are compared and collated, and the number-of-original-sheets designation by the number-of-original-sheets designating means which exceeds the set number of sheets is designated. The first prohibition means for prohibiting is provided. Further, a document size detecting means for detecting the size of the document, a document size detected by the document size detecting means, and a first maximum number of sheets that can be placed on the platen glass based on the document placement effective length on the platen glass. The first stacking number calculating means for calculating and the designated number of sheets designated by the original sheet number designating means are compared and collated with the first maximum number of sheets, and the original sheet number designating means for exceeding the first maximum number of sheets. The second prohibition means for prohibiting the designation of the number of originals by the above is provided.

Further, an original size detecting means for detecting the size of the original, a transfer paper size detecting means for detecting the transfer paper size, a magnification detecting means for detecting a copying magnification, and a transfer detected by the transfer paper size detecting means. Scan length calculating means for calculating the effective scan length during copying from the paper size and the copy magnification detected by the magnification detecting means, and the size of the original detected by the original size detecting means and the effective scan calculated by the scan length calculating means The second maximum number of sheets for calculating the second maximum number of sheets that can be placed on the platen glass from the length is compared with the second maximum number of sheets designated by the original sheet number designating means. In addition, a third prohibiting means for prohibiting the original number designation by the original number designating means that exceeds the second maximum number is provided.

Further, the number of originals setting means for setting the number of originals to be copied onto one transfer sheet, and the same number of originals as the number of originals set by the original number setting means are placed on the platen glass. The mode selection means for selecting either the first placement mode or the second placement mode for placing the originals on the platen glass up to the number set by the original number setting means, and the selection means. When the second placement mode is selected, a position designating unit that designates a placement position on the platen glass on which each document fed from the document feeding unit is placed is provided.

Further, when the selection means selects the second placement mode, the placement position on the platen glass for placing each original fed from the original feeding means is set on the platen glass. The document placement position control means is provided for controlling the setting at a position near the document placement position reference to be set or at a position separated from the document placement position reference set on the platen glass by a predetermined length.

Further, the predetermined length is an integral multiple of the document size.

Further, the original size detecting means for detecting the size of the original, the size of the original detected by the original size detecting means, and the number of originals sequentially separated and fed on the platen glass from the original feeding means. Based on this, there is provided frame erasing control means for controlling the frame erasing exposure of the frame erasing means.

Further, a sheet interval detecting means for detecting the sheet interval of the documents sequentially separated and fed from the original sheet feeding means onto the platen glass is provided, and the frame erasing control means is provided between the sheets detected by the sheet interval detecting means. Accordingly, the frame erasing exposure of the frame erasing means is controlled.

Further, the original size detecting means for detecting the size of the original, the size of the original detected by the original size detecting means, and the number of originals sequentially separated and fed from the original feeding means onto the platen glass. On the basis of this, there is provided an inter-frame border erase control means for controlling the inter-frame border erase exposure of the inter-frame border erase means.

Further, a sheet interval detecting means for detecting the sheet interval of the documents sequentially separated and fed from the document feeding means onto the platen glass is provided, and the sheet frame erasing control means detects the sheet detected by the sheet interval detecting means. It is configured to control the frame erasing exposure of the paper frame erasing unit according to the interval.

Further, the frame-erasing exposure of the sheet-frame erasing unit is limited in accordance with the sheet-space length detected by the sheet-space detecting unit.

[0025]

In the first aspect of the present invention, the first placement mode for placing the originals sequentially separated by the mode designating means on the platen glass in the separation order and the order for the sequentially separated originals different from the separation order. The second to be placed on the platen glass
When any one of the loading modes is designated, the feeding control means controls the separation feeding of each original from the original feeding means based on the mode designation state, and the originals are transferred in an order different from the separation order. By placing the document on the platen glass, it is possible to obtain a copy output in which the page order is normalized even if the description format of the document is different between vertical writing and horizontal writing.

Further, when the number of originals to be placed on the platen glass is specified by the original number specifying means, the feeding control means controls the placing order of the respective originals to be separated and fed according to the designated number. Therefore, when copying three or more originals onto one transfer sheet, it is possible to obtain a copy output in which the page order is normalized even if the description format of the originals is different between vertical writing and horizontal writing. To do.

Furthermore, the number of originals which are sequentially separated and fed from the original feeding means by the original number specifying means to be simultaneously placed on the platen glass is designated, and the original number setting means makes a copy onto one transfer sheet. When the number of originals to be set is set, the control unit controls the number of originals to be fed from the original feeding unit based on the designation of the number of originals placed on the platen glass at the same time. Documents can be fed onto the platen glass with priority given to the specified number.

Further, by comparing and collating the set number of sheets set by the number-of-original-sheets setting unit with the designated number of sheets specified by the number-of-original-sheets designating unit, the first prohibiting unit uses the number-of-original-sheets designating unit that exceeds the set number of sheets. By prohibiting the specification of the number of originals, it is possible to monitor the incorrect input of the number of originals by the original number specifying means and invalidate the incorrect specification of the original number.

Further, the first maximum number of sheets that can be placed on the platen glass is calculated from the original size detected by the original size detecting means and the original placement effective length on the platen glass by the first stacking sheet number calculating means. Then, the second prohibition means compares and collates the first maximum number of sheets with the number of originals designated by the original number designation means, and prohibits the number of originals designation by the original number designation means exceeding the second maximum number of sheets. It is possible to monitor an erroneous number designation input from the number-of-documents designating means and invalidate an erroneous number-of-documents designation that exceeds the document placement effective length.

Further, when the effective scan length at the time of copying is calculated from the transfer paper size detected by the transfer paper size detecting means by the scan length calculating means and the copy magnification detected by the magnification detecting means, the second stacked sheet number calculating means From the effective scan length, the second maximum number of sheets that can be placed on the platen glass is calculated, and the third inhibiting means compares and collates the second maximum number with the number of original sheets by the original sheet number designating means. By prohibiting specification of the number of originals by the original number specification means that exceeds the maximum number of sheets, the incorrect input of the number of originals from the original number specification means is monitored and the incorrect original number specification that exceeds the valid scan length is invalidated. It is possible to

Further, when the second loading mode is selected by the selecting means for loading the originals on the platen glass up to the number of originals set by the original number setting means, the position specifying means causes the original feeding means to operate. By making it possible to specify the position on which the respective originals fed from are placed, it is possible to select and specify the position of each original when the number of originals to be placed is different from the designated number.

Further, when the second placement mode for placing the originals on the platen glass by the selection means with the number of originals or less set by the original number setting means is selected, the placement position control means places the originals on the platen glass. By controlling the position designated by the position designating means, that is, a position near the original placement position reference set on the platen glass or a position separated from the original placement position reference set on the platen glass by a predetermined length. It is possible to automatically set the placement position of each document when the document placement number and the designated number are different.

Further, when the second placing mode for placing the originals on the platen glass with the number of originals set by the original number setting means or less is selected by the selecting means, the placing position control means causes the platen glass to operate. The number of originals to be placed can be specified by controlling the setting to a position near the original placement position reference set above or a position that is an integer multiple of the original size away from the original placement position reference set on the platen glass. When the number of sheets is different, it is possible to automatically set the placement position of each original document to the optimal position for the original size.

Further, the frame erasing control means performs the frame erasing exposure of the frame erasing means based on the size of the original detected by the original size detecting means and the number of originals sequentially separated and fed from the original feeding means onto the platen glass. By controlling, it is possible to perform the automatic document frame erasing process most suitable for the document size of the documents sequentially separated and fed on the platen glass.

Further, the frame erasing control unit controls the frame erasing exposure of the frame erasing unit according to the space between the sheets detected by the sheet interval detecting unit, so that the original is placed without the sheet interval. , It is possible to limit the automatic document frame erasing process.

Further, based on the size of the original detected by the original size detecting means and the number of originals sequentially separated and fed from the original feeding means onto the platen glass, the inter-paper-frame erasing control means performs the inter-paper-frame erasing means. By controlling the exposure of the inter-frame borders, it is possible to perform the automatic inter-frame border erase processing most suitable for the document size of the documents sequentially separated and fed onto the platen glass.

Further, the inter-paper-frame erasing control means controls the frame-erasing exposure of the inter-paper-frame erasing means according to the paper space detected by the paper-interval detecting means, so that the original is placed without the paper space. In this case, it is possible to limit the automatic paper-frame removal processing.

Further, by limiting the frame erasing exposure of the sheet interval erasing unit according to the sheet interval length detected by the sheet interval detecting unit, the automatic sheet interval erasing process is performed according to the detected sheet length. It is possible to selectively execute.

[0039]

FIG. 1 is a sectional view for explaining the construction of a copying machine showing an embodiment of the present invention, which comprises a main body 100, a pedestal 200, an RDF 300, a sorter 400, etc., which will be described in detail in order. FIG. 2 shows the RD shown in FIG.
It is an expanded sectional view explaining the structure of F300.

Structure of Main Body 100 In the main body 100, 101 is a platen glass on which an original is placed, 103 is an illumination lamp (exposure lamp) for illuminating the original, and 105, 107 and 109 are first to third reflection mirrors (scanning). A scanning mirror for changing the optical path of the reflected light due to the illumination of the original by the illumination lamp 103,
Is an imaging lens having a focusing and variable magnification function, 113 is a fourth scanning mirror for changing the optical path, 115 is an optical system motor for driving the optical system, 117, 119 and 121 are position sensors (sensors), and Detect the scanning position of the system.

Reference numeral 131 is a photosensitive drum, 133 is a main motor for driving the photosensitive drum 131, 135 is a high voltage unit, 137 is a blank exposure unit, 139 is a developing device, 140 is a developing roller, 141 is a transfer charger, and 143.
Is a separation charger, and 145 is a cleaning device. 15
Reference numeral 1 is an upper cassette, 153 is a lower cassette, 171 is a manual paper feed port, 155 and 157 are paper feed rollers, and 159 is a registration roller. Further, 161 is a conveyor belt that conveys the recording paper on which an image is recorded to the fixing side, 163 is a fixing device that fixes the conveyed recording paper by thermocompression bonding, and 167 is a sensor used in double-sided recording.

The surface of the above-mentioned photosensitive drum 131 is composed of a photoconductor and a seamless photosensitive member using a conductor. The photosensitive drum 131 is rotatably supported and responds to the pressing of a copy start key, which will be described later. The main motor 133 that operates in this way starts rotation in the direction of the arrow shown. Next, when the predetermined rotation control of the photosensitive drum 131 and the potential control processing (preprocessing) are completed, the original placed on the platen glass 101 is illuminated by the illumination lamp 103 that is integrally configured with the first scanning mirror 105. The reflected light of the original document forms an image on the photosensitive drum 131 via the first scanning mirror 105, the second scanning mirror 107, the third scanning mirror 109, the imaging lens 111, and the fourth scanning mirror 113.

The photosensitive drum 131 is corona charged by the high voltage unit 135. After that, the image (original image) irradiated by the illumination lamp 103 is slit-exposed, and an electrostatic latent image is formed on the photosensitive drum 131 by the known Carlson method.

Next, the electrostatic image on the photosensitive drum 131 is
It is developed by the developing roller 140 of the developing device 139 and visualized as a toner image, and the toner image is transferred to the transfer charger 14.
1 is transferred onto the transfer paper as described later.

That is, the transfer paper in the upper cassette 151 or the lower cassette 153 or the manual feed port 171.
The transfer sheet set at is fed to the inside of the main body apparatus by the sheet feeding roller 155 or the sheet feeding roller 157, and is fed to the photosensitive drum 131 at a correct timing by the registration roller 159 so that the leading edge of the latent image and the transfer sheet are The tip is aligned. After that, the transfer charger 141 and the photosensitive drum 1
By passing the transfer sheet between the transfer sheet 31 and the sheet 31, the toner image on the photosensitive drum 131 is transferred onto the transfer sheet. After this transfer is completed, the transfer paper is separated from the photosensitive drum 131 by the separating charger 1.
43, and the fixing device 1 is separated by the conveyor belt 161.
It is guided to 63, fixed by pressure and heating, and then discharged to the outside of the main body 100 by the discharge roller 165.

After the transfer, the photosensitive drum 131 continues to rotate, and its surface is cleaned by the cleaning device 145 including a cleaning roller and an elastic blade.

Structure of Pedestal 200 The pedestal 200 can be detached from the main body 100 and can accommodate 2,000 sheets of transfer paper.
And an intermediate tray 203 for double-sided copying. Further, the lifter 205 of the deck 201 capable of accommodating 2,000 sheets ascends according to the amount of transfer paper so that the transfer paper always contacts the paper feed roller 207. Also, 2
Reference numeral 11 is a paper discharge flapper that switches between a double-sided recording side or multiple recording side path and a discharge side path, 213 and 215 are conveyance belt conveyance paths, and 217 is an intermediate tray weight for pressing the transfer paper. 211 and transport path 21
The transfer paper that has passed through the sheets 3, 215 is turned over and stored in the double-sided copy intermediate tray 203. Reference numeral 219 denotes a multiple flapper for a double-sided recording and a multiple recording path. The multiple flapper is provided between the transport path 213 and the transport path 215 and rotates upward.
The transfer paper is guided to the multiple recording transport path 221.

Reference numeral 223 denotes a multiple paper discharge sensor for detecting the end of the transfer paper passing through the multiple flapper 219. Reference numeral 225 is a paper feed roller for feeding the transfer paper to the photosensitive drum 131 side through the path 227. A discharge roller 229 discharges the transfer paper to the outside of the machine.

During double-sided recording (double-sided copying) or multiplex recording (multiplexing copying), first, the paper discharge flapper 211 of the main body 100 is raised to transfer the copied transfer paper to the intermediate position via the conveying paths 213 and 215 of the pedestal 200. Store in the tray 203. At this time, the multiple flapper 219 is lowered during double-sided recording, and the multiple flapper 219 is raised during multiplex recording. The intermediate tray 203 can store, for example, up to 99 transfer sheets. The transfer sheet stored in the intermediate tray 203 is pressed by the intermediate tray weight 217.

During the next reverse recording or multiple recording, the transfer sheets stored in the intermediate tray 203 are fed one by one from the bottom, the paper feed roller 225, and the intermediate tray weight 217.
By the action of and, it is guided to the registration roller 159 of the main body 100 via the path 227.

Structure of Circulating Document Feeder (RDF) In RDF300, reference numeral 305 denotes a stacking tray (document placing table) on which a stack of documents S is set. First, when a single-sided original is used, the separating motor M301 is driven. The half-moon roller 307, the separation / conveyance roller 309, and the separation belt 310 separate the document bundle S one by one from the lowermost part, and by driving the belt motor M302, the registration roller 3
21 and the entire surface belt 303, the platen glass 10
The sheet is conveyed to the exposure position above 1 via paths I to II, then stopped, and the copying operation starts. After the copying is completed, the belt motor M302 is driven via the path III, the conveyance large roller 315 feeds it to the path V, and the paper discharge roller 317 returns it to the upper surface of the original stack S again. Reference numeral 306 denotes a recycle lever that detects one circulation of the original document. The recycle lever 3 is placed on the upper part of the original document stack when the original document feeding is started, and the original documents are sequentially fed.
One round of the original is detected by falling due to its own weight when it exits 06. Next, in the case of a double-sided original, the original is once guided from path I, II to path III as described above, and the flapper solenoid FLAPSL is driven there to switch the rotatable flapper 320 in the direction of the dotted line shown in FIG. This guides the leading edge of the document to pass IV, and the registration roller 3
After passing through the path II by 21 and the whole surface belt 303 onto the platen glass 101, it is stopped. That is,
By the large conveyance roller 315, pass III, pass IV, pass II
The document is reversed on the path of. In addition, the document bundle S is passed one by one in passes I to III and passes IV to pass VI.
The number of originals can be counted by transporting the document through the recycle lever 306 until the circulation is detected.

FIG. 3 is a plan view of an essential part of the RDF 300 shown in FIG.

As shown in this figure, the original stacking table 30
5 is provided with a movable wall 329 which is movable in a direction orthogonal to the document feeding direction in the figure, and is configured so that the document placing position can be adjusted.

FIG. 4 is a plan view showing an arrangement configuration example of the operation panel provided in the main body 100 shown in FIG. 1, which is composed of a key group 600 and a display group 700 shown in FIG. 5 described later. Each key group and display group will be described in detail.

In the key group 600, an asterisk (*) key 601 is pressed by the operator (user) when setting the binding margin amount or setting the mode such as the size of the document frame erasing. An all reset key 606 is pressed when returning to the standard mode. Reference numeral 602 denotes a preheat key, which is pressed to bring the machine of the main body 100 into a preheat state and release the preheat state. The preheat key 602 is also used when returning from the auto shutoff state to the standard mode.
Press. Reference numeral 605 denotes a copy start key (copy start key), which is pressed when copying is started. A clear stop key 604 is pressed to function as a clear key during standby (standby) and as a stop key during copy recording. Clear stop key 604
Is pressed to cancel the set number of copies.

The button is also pressed to cancel the asterisk (*) mode. Furthermore, if the clear stop key 604 is pressed during continuous copying, the copying operation is stopped after the copying at the time of pressing is completed.

Reference numeral 603 is a ten-key pad which is depressed to set the number of copies. It is also pressed when setting the asterisk (*) mode. A memory key 619 can be used to register a mode that the user frequently uses. Here, four types of registration of M1 to M4 can be performed. Copy density keys 611 and 612 are pressed when manually adjusting the copy density. 613 is an AE key,
When automatically adjusting the copy density according to the density of the original,
Alternatively, it is pressed when the AE (automatic density adjustment) is canceled and the density adjustment is switched to manual (manual). A cassette selection key 607 is depressed when selecting the upper cassette 151, the lower cassette 153, and the deck 201.
Further, when a document is placed on the RDF 300, APS (automatic paper selection) can be selected by the cassette selection key 607. When APS is selected, a transfer paper cassette having the same size as the original is automatically selected.

Reference numeral 610 denotes a unity size key, which is depressed when making a copy of the same size (actual size). An automatic scaling key 616 is pressed to automatically reduce or enlarge the image of the original according to the size of the designated transfer paper. Zoom keys 617 and 618 are pressed when designating an arbitrary magnification between 64% and 142%, for example. Reference numerals 608 and 609 denote fixed-size variable magnification keys, which are pressed when the reduction / enlargement of the fixed-size is designated. Reference numeral 626 denotes a double-sided key, which is pressed to make a double-sided copy from a single-sided original, a double-sided copy from a double-sided original, or a single-sided copy from a double-sided original. A binding margin key 625 can create a binding margin of a designated length on the left side of the transfer paper. A photo key 624 is pressed when copying a photo original. Reference numeral 623 denotes a multi-key, which is pressed when an image is created (combined) from two originals on the same surface of the transfer paper. 62
Reference numeral 0 denotes a document frame erasing key, which is pressed when the user uses the frame erasing of a standard size document, and the size of the document at that time is set with an asterisk key 601. Reference numeral 621 denotes a sheet frame erasing key, which is pressed to erase the frame of the original according to the size of the cassette. A page continuous shooting key 622 is pressed to copy the left and right pages of the original into separate sheets. Numeral 614 is a sheet ejection method (staple, sort, group) selection key. When a stapler capable of stapling the printed sheets by staple is connected, the staple mode or the sort mode can be selected or released to sort the sheets. When a tray (sorter) is connected, you can select or cancel the sort mode or group mode. Reference numeral 615 denotes a paper folding selection key, which is used to fold a recorded sheet of A3 or B4 size into a Z-shaped cross section,
You can select and cancel half-folding. Further, a key (not shown) that enables a selection operation of a first mode in which the bin is moved to an initial setting position (sort / home position) before the start of sheet storage and a second mode in which the bin is not moved. Is provided. Reference numeral 627 denotes an interrupt key, and when pressed during copying, the copying is interrupted and a new copying (hereinafter referred to as interrupt copying) is enabled. If the button is pressed while the interrupt copy mode is set, the interrupt copy enable state is canceled.

A reservation key 628 allows registration / cancellation of reservation copying. When the reservation key 628 is pressed, a copy mode different from the copy mode already set can be set. Here, the copy mode to be registered is set, and when the setting is completed, the reservation setting key 629 is pressed. As a result, the set copy mode is R shown in FIG.
It is stored on the AM 805.

Reference numeral 630 denotes a 2-in-1 mode key, which allows selection and cancellation of the 2-in-1 mode in which a plurality of originals are placed on the platen glass 101 and the images of the plurality of originals are formed on one transfer sheet.

Reference numeral 632 denotes a horizontal writing vertical writing original selection key, which is 2
It is possible to select the stacking order of a plurality of originals when the 2in1 mode is designated with the in1 mode key 630, and when omitted, the horizontal writing original is selected.

Reference numeral 634 is an odd-even input key, which is depressed when the total number of document bundles S set in the RDF 300 is odd,
The CPU shown in FIG. 5, which will be described later, is notified of the number of documents.

In the display group 700, reference numeral 701 is a liquid crystal (LCD) type message display for displaying information relating to copying, for example, 5 × 7.
One character is made up of dots, and a message for 40 characters and the copy magnification set by the fixed size scaling keys 608 and 609, the same size key 610, and the zoom keys 617 and 618 can be displayed. This message display 701 is a semi-transmissive liquid crystal and uses two colors for the backlight, and a normal green backlight is lit, and an orange backlight is lit when there is an abnormality or the copying is impossible. Reference numeral 706 denotes a unity-magnification display, which lights up when the unity-size is selected. Reference numeral 703 denotes a color developing device indicator, which lights up when the sepia developing device is set.
A copy number display 702 displays the number of copies or a self-diagnosis code. Reference numeral 705 denotes a used cassette display, which indicates which of the upper cassette 151, the lower cassette 153, and the deck 201 is selected. An AE display 704 is turned on when AE (automatic density adjustment) is selected by the AE key 613. Reference numeral 709 denotes a preheat indicator, which is a two-color LED of green and orange, which lights up green when ready (when copying is possible) and lights up orange when waiting (when copying is not possible).

Reference numeral 708 denotes a double-sided copy display, which is turned on when either double-sided copy from double-sided original or double-sided copy from single-sided original is selected. When the RDF300 is used in the standard mode, the number of copies is 1, the density AE mode,
Auto paper selection, normal size, single-sided original to single-sided copying. In the standard mode when the RDF 300 is not used, the number of copies is one, the density manual mode is the same size, and the settings are for single-sided copy to single-sided copy. The difference between when the RDF 300 is used and when it is not used is determined by whether or not a document is set on the RDF 300. A power lamp 710 is turned on when the power switch is turned on. Reference numeral 711 is an interrupt indicator, which lights up when the interrupt copy mode is set and during interrupt copy. Reference numeral 712 denotes a reservation registration display, which lights up when reservation copying is registered.

FIG. 5 is a block diagram illustrating the control configuration of the copying apparatus shown in FIG.

In the figure, reference numeral 801 is a central processing unit (CPU) for performing arithmetic control for carrying out the present invention, and is constituted by a microcomputer V50 of NEC (manufactured by NEC 8 formula company), for example. Reference numeral 803 denotes a read-only memory ROM in which the control procedure (control program) shown in FIG.
Controls each constituent device connected via the bus in accordance with the control procedure stored in the ROM 803. A random access memory (RAM) 805 is a main storage device used as a storage area for input data, a storage area for work, and the like.
Is. 807 is a CPU for the load of the main motor 133, etc.
Interface for outputting control signal from 801 (I /
O), 809 is an interface for inputting an input signal from the sensor 121 or the like at the image destination and sending it to the CPU 801, and 811 is an interface for controlling input / output of the key group 600 and the display group 700. These interfaces 80
7, 809 and 811 use, for example, an NEC input / output circuit port μPD8255.

Reference numeral 900 denotes a control unit for controlling the RDF 300, which is mainly composed of a one-chip microcomputer (CPU) 901 having a built-in ROM, RAM, etc., and signals of various sensors are inputted to input ports I1 to I4 of the CPU 901. Is entered. Each load is connected to the output ports O1 to O11 of the CPU 901 via the drivers D1 to D11, and control data is exchanged with the copying apparatus via the serial interfaces 903 and 813. . The data transmitted from the RDF 300 to the main body 100 includes a feeding completion signal indicating completion of feeding the original onto the platen glass 101, a feeding position signal indicating the feeding position, and an original size indicating the size of the fed original. signal,
This is a document number signal indicating the total number of document bundles.

In the copying apparatus configured as described above,
Firstly, the originals that are sequentially separated by the mode designation means (original selection key 632) are placed on the platen glass in the separation order.
When any one of the loading mode and the second loading mode in which the sequentially separated originals are placed on the platen glass in an order different from the separation order is designated, the feeding control unit (CPU 90).
1) controls the separation and feeding of each original from the original feeding means based on the mode designation state, and places a plurality of originals on the platen glass in an order different from the separation order. Even if the description format is different between vertical writing and horizontal writing,
It is possible to obtain a copy output in which the page order is normalized.

Further, a document number designating means (ten-key 603
When the number of originals to be placed on the platen glass is designated by the and Nin1 keys 635), the feeding control means (CP
U901) controls the stacking order of each document to be separated and fed according to the designated number of sheets, and when three or more documents are copied onto one transfer sheet, the description format of the document is written vertically. / It is possible to obtain a copy output in which the page order is normalized even if horizontal writing is different.

Further, means for designating the number of originals (ten-key pad 60
3 and Nin1 key 635) to the document feeding means (RD
The number of documents to be separately fed from F300) and placed on the platen glass at the same time is designated, and the number of documents to be copied onto one transfer sheet is set by the document number setting means (ten key 603). And control means (CPU 90
1) controls the number of originals to be fed from the original feeding means (RDF 300) based on the designation of the number of originals to be placed on the platen glass at the same time. When the number of sheets exceeds the number of sheets specified by, the originals can be fed onto the platen glass with priority given to the number of sheets specified by the original sheet number specifying means.

Further, a document number setting means (ten-key pad 60
3) the set number of sheets and the number of originals designated by the means (N
By comparing and collating with the designated number of sheets designated by the in1 key 635), the first inhibiting means (due to the functional processing of the CPU 901) inhibits the number of originals designated by the number of originals designating means exceeding the preset number, It is possible to monitor an erroneous document number designation input by the document number designation means and invalidate the erroneous document number designation.

Further, the first stacked sheet number calculating means (CPU
The first maximum number of sheets that can be placed on the platen glass is calculated from the original size detected by the original size detecting unit (original detection sensor S1) and the effective length of placing the original on the platen glass by the functional processing of 901). And the second
Means (by the functional processing of the CPU 901) compares and collates the first maximum number of sheets with the number of originals by the original number designation means, and prohibits the number of originals designation by the original number designation means exceeding the second maximum number. This makes it possible to monitor an erroneous number designation input from the number-of-documents designating unit and invalidate an erroneous number-of-documents designation that exceeds the document placement effective length.

Further, scan length calculation means (CPU 901)
Transfer paper size detection means (CP
U801) transfer paper size and magnification detection means (C
When the effective scan length at the time of copying is calculated from the copy magnification detected by the PU801 functional processing), the second stacking sheet number calculation means (by the functional processing of the CPU 901) places it on the platen glass from the effective scan length. The second possible maximum number of sheets is calculated, and the third prohibiting means (by the functional processing of the CPU 901) compares and collates the second maximum number of sheets with the number of original sheets by the original sheet number designating means so that the second maximum number of sheets is exceeded. It is possible to monitor incorrect input of the number of originals from the original number specifying unit and invalidate the incorrect number of originals exceeding the effective scan length by prohibiting the original number specification by the original number specifying unit. And

Further, selecting means (mounting mode selection key 6
36), when the second placement mode for placing the number of originals equal to or less than the number set by the original number setting means (ten key 603) on the platen glass is selected, the position specifying means (position specifying key 637) Is the document feeding means (RDF3
By allowing the position of each original fed from 00) to be designated, the position of each original can be selectively designated when the number of placed originals is different from the designated number.

Further, selecting means (mounting mode selection key 63
When the second placement mode is selected in which the number of originals equal to or less than the number set by the original number setting means on the platen glass is selected by 6), the placement position control means (CPU 90)
(By the function processing of 1) is set to a position near a document placement position reference set on the platen glass or a position separated by a predetermined length from the document placement position reference set on the platen glass. When the number of placed sheets and the designated number of sheets are different, the placing position of each document can be automatically set.

Further, selecting means (mounting mode selection key 6
36), when the second placement mode for placing the number of originals equal to or less than the number set by the original number setting means on the platen glass is selected, the placement position control means (CPU 9)
01) is designated by the placement position designation key 637, that is, the position near the document placement position reference set on the platen glass or the document placement position reference set on the platen glass. By setting and controlling the positions separated by an integral multiple of the size, it becomes possible to automatically set the placement position of each document to the optimum position for the document size when the number of document placements is different from the designated number.

Further, the frame erasing control means is based on the size of the original detected by the original size detecting means (original detection sensor S1) and the number of originals sequentially fed from the original feeding means (RDF300) onto the platen glass. (CPU80
1) controls the frame erasing exposure of the frame erasing means (blank exposure unit 137), thereby making it possible to perform the automatic document erasing process most suitable for the document size of the documents sequentially separated and fed onto the platen glass.

Further, the frame erasing control means (CPU 801)
By controlling the frame erasing exposure of the frame erasing unit (blank exposure unit 137) according to the space between the sheets detected by the sheet interval detecting unit (by the timer processing of the CPU 901),
It is possible to limit the automatic document frame erasing process when a document is placed without a sheet interval.

The space between sheets is determined based on the size of the original detected by the original size detecting means (original detection sensor S1) and the number of originals sequentially fed from the original feeding means (RDF300) onto the platen glass. Erase control means (C
The PU 801) controls the inter-frame border erasing exposure of the inter-frame border erasing means (blank exposure unit 137) to perform automatic inter-frame border erasing processing optimal for the document size of the documents sequentially separated and fed onto the platen glass. It is possible.

Further, the paper frame erasing control means (CPU 80
1) controls the frame erasing exposure of the sheet interval frame erasing unit (blank exposure unit 137) according to the sheet interval detected by the sheet interval detecting unit (by the timer processing of the CPU 901), so that there is no sheet interval. When a document is placed,
It is possible to limit the automatic paper frame erasing process.

Further, the paper frame erasing control means (CPU 80
1) limits the frame-erasing exposure of the paper-frame erasing unit (blank exposure unit 137) according to the paper-space length detected by the paper-space detecting unit (by the timer processing of the CPU 901), and It is possible to selectively execute the automatic interleaf frame erasing process according to the length of the.

6 and 7 are flow charts showing an example of the 2 in 1 mode processing procedure in the copying machine according to the present invention. Note that (1) to (37) indicate each step.

First, a document is set on the document loading table 305 of the RDF 300 (1). Then, press the automatic scaling key 616 on the operation panel to select the single-sided copy mode,
Further, the 2-in-1 mode key 630 is pressed to select the single-sided copy mode (2). Next, copy start key 60
Press 5 to start the copy process (3). In response to this, the main body CPU 801 sends to the RDF 300 a count mode command for determining the number of documents by idly feeding a plurality of documents placed on the document stacking table 305 (4).
. In response to this command, the RDF 300 repeats the separating process, the paper feeding process, and the paper discharging process, which will be described later, to count the number of document bundles S and transmit the number of document sheets to the main body CPU 801 (5).

Next, it is judged whether or not the document vertical writing / horizontal writing designation is vertical writing (6), and if NO, the process proceeds to step (24) and thereafter, and if YES, the maximum of the document stack S on the document stacking table 305 of the RDF 300. A forward order paper feed command for feeding sheets one by one from the bottom is sent to the RDF 300 (7). Next, it is determined whether the number of originals is an even number (8), and if YES, the originals PA are set at both the position A (referred to as the left mounting position) and the position B (referred to as the right mounting position) shown in FIG. R to place PB
Send 2in1 original left and right placement command to DF300 (9),
After that, the completion of paper feeding is awaited (10), and the copy process 1 described later is performed (11). When the copy process 1 is completed, RDF
Determine if the manuscript sent from 300 is the final manuscript
(12) If NO, send a reverse-order paper discharge command for switching the order of the two originals placed on the platen glass 101 and discharging, and a forward paper feed command for feeding the next original. (1
3), wait for the completion of the paper discharge process (14), then step (11)
Return to.

On the other hand, in the case of YES in step (12), the reverse order paper discharge command for changing the order of the originals and discharging the paper is transmitted (1
5) Waiting for the completion of document discharge (16), and the entire copying process is completed.

On the other hand, in the case of NO in the determination in step (8), the process proceeds to step (17) and the document is placed on the left side.
A document left placement command is transmitted, waiting for completion of paper feeding (18), and copy processing 2 described later is executed (19). Then, when the copy process 2 is completed, it is determined whether or not the document is the final document (20), and NO.
In that case, a normal order paper discharge command for discharging one original placed on the platen glass 101 and a normal order paper feed command for feeding the next original are transmitted (21), and the discharged paper is discharged. Wait for processing (1
4) Return to step (11) and repeat the process.

On the other hand, if YES in step (20), a normal order paper discharge command for discharging the originals in order is transmitted.
(22) After waiting for the completion of document discharge (23), the entire copying process is completed.

On the other hand, in the case of NO in the step (6) (in the case of horizontal writing), the reverse order paper feed command for feeding the originals on the original loading table 305 of the RDF 300 one by one in reverse order from the bottom is sent to the RDF 300 ( 24), it is determined whether the number of originals is an even number (25), and if YES, a 2 in 1 original left / right placement command is sent to the RDF 300 to place the originals left / right (26), and then paper feeding is completed. Waiting for (27), the copy process 1 described later is performed (28).

When the copy process 1 is completed, it is judged whether or not the document is the final document (29), and if NO, a normal order paper ejection command for ejecting the two documents placed on the platen glass 101 in order. Then, the reverse order paper feed command for changing the order of the next original and feeding the paper is sent (30), waits for the completion of the paper discharge processing (31), and returns to step (28) to repeat the processing.

On the other hand, in the case of NO at step (25), the document is placed on the right side, so the document right placing command is transmitted (3
4) After waiting for the completion of feeding (35), copy processing 3 described later is executed (36). When the copy process 3 is completed, a document left / right placement command is transmitted to place the document on the left / right (37), and the process returns to step (29).

On the other hand, if the result of the determination in step (29) is YES, a normal order paper discharge command for discharging the originals in order is transmitted (32),
Waiting for the completion of document discharge (33), the entire copying process is completed.

FIG. 9 is a flow chart showing an example of the detailed procedure of the copy processing 1 in the copying apparatus according to the present invention. In addition, (1) to (10) indicate each step.

First, the optical system is forward scan (F
WDSCAN) is started (1), and when the image front is detected by the sensor 117 serving as an image front sensor (2), the original PA is exposed and the original image is formed for the length of the original PA (3),
(4) When scanning for a predetermined sheet interval is completed (5), the original PB is exposed in the same manner as the original PA, and the original image is formed for the length of the original PB (6), (7), and then the optical system is formed. Motor 1
By turning off 15 (8), starting back scan (9), and executing predetermined back scan control to return the optical system to the predetermined home position, that is, with the back scan of the optical system When the sensor 117 serving as a sensor detects the optical system (10), the optical system motor 115 is turned off (11), and when the sensor 119 serving as a home position sensor detects the optical system (12), the optical system motor 115 is detected. Then, the forward rotation brake is turned on (13), the optical system is stopped at a predetermined home position, and the copy process 1 is ended.

FIG. 10 is a flow chart showing an example of a detailed procedure of the copy processing 2 in the copying apparatus according to the present invention. In addition, (1) to (10) indicate each step.

First, the optical system uses the forward scan (F
WDSCAN) is started (1), and when the image front is detected by the sensor 117 serving as an image front sensor (2), the original PA is exposed and the original image is formed for the length of the original PA (3),
(4) Then, the optical system motor 115 is turned off (5), the back scan is started (6), the predetermined back scan control is executed to return the optical system to the predetermined home position, that is, the optical system. When the sensor 117, which is the image tip sensor, detects the optical system in accordance with the back scan of (7), the optical system motor 115 is turned off (8), and when the sensor 119, which is the home position sensor, detects the optical system (9). The normal rotation brake is turned on for the optical system motor 115 (10), the optical system is stopped at a predetermined home position, and the copy process 2 ends.

FIG. 11 is a flow chart showing an example of a detailed procedure of the copy processing 3 in the copying apparatus according to the present invention. Note that (1) to (12) indicate each step.

First, the optical system uses the forward scan (F
(WDSCAN) is started (1), and when the image tip is detected by the sensor 117 serving as an image tip sensor (2), the optical system is set to the original P.
Perform A length (3), and after finishing scanning for the specified interval
(4) As with the original PA, the original PB is exposed and the original image is formed for the length of the original PB (5) and (6), and then the optical system motor 115 is turned off (7) to start back scanning. (8) By executing a predetermined backscan control to return the optical system to a predetermined home position, that is, when the sensor 117 serving as an image tip sensor detects the optical system along with the backscan of the optical system (9 ), Turn off the optical system motor 115 (1
0), and a sensor 119 that serves as a home position sensor.
When (11) detects the optical system, the forward rotation brake is turned on for the optical system motor 115 (12), the optical system is stopped at a predetermined home position, and the copy process 3 is ended.

FIG. 12 is a main flow chart showing an example of a double-sided copy processing procedure in the copying apparatus according to the present invention. Note that steps (1) to (6) except steps (4) and (6)
(7) shows a processing routine. First, a separation process routine for separating and feeding one lowermost original in the bundle of originals S in the sheet path I direction is executed (1), and then the originals are conveyed from the sheet path II to the sheet path III. Platen glass 101
Execute the paper feed processing routine to feed the original so that the trailing edge of the original stops at the upper original stop reference position (2), and then set the sheet path III.
A sheet reversal process routine in which the original is turned over to be conveyed to the sheet path IV, the sheet path V, the sheet path II, and the sheet path III to be fed to the original stop reference position on the platen glass 101 (3), If the CPU 801 of the main body detects that the optical system has finished exposure,
(4) Further, the inversion processing routine is executed in the same manner as above (5)
, Reverse the original. Then, when it is detected by the command from the CPU 801 of the main body that the optical system has completed the exposure,
(6) Then, a paper discharge processing routine for discharging the original onto the original placing table 305 is executed (7), and the processing ends.

FIG. 13 is a flow chart showing an example of the detailed procedure of the separation processing routine in the copying apparatus according to the present invention. It should be noted that (1) to (11) indicate each step.

First, the CPU 901 of the RDF 300 determines whether the original fed from the original placing table 305 is the first original (1), and if YES, the recycle lever 306 for detecting the separation of the original bundle S. To turn on the document stack S
The separation motor M301 is turned on to perform the above judgment (2), and a jogging process (to be described later) for aligning the document bundle S in the width direction is started (3). When the jogging process is completed (4), the stopper solenoid STPSL is turned on (5) to lower the paper feed stopper 311 so that only the lowermost document in the document stack S is separated (5). When the registration sensor S302 detects the leading edge of the document and turns on (6), the control for driving the separation motor M301 at low speed is started (7), and the separation loop timer is started (8), and separation is started. When the loop timer ends (9), turn off the separation motor M301 (1
0), since the leading edge of the document is abutted against the nip portion of the registration rollers 321a and 321b at low speed, it is possible to prevent damage to the leading edge of the document, reduce the collision noise, and further, in a state where a predetermined amount of loop is formed. Stop. As a result, even if the skew occurs when separating the originals, the effect is corrected.

When the determination in step (1) is NO (when the document is fed from the second sheet onward), the separation motor M30
Turn on 1 (11), and proceed to step (6) and thereafter.

FIG. 14 is a flow chart showing an example of a detailed procedure of a paper feed processing routine in the copying apparatus according to the present invention. Note that (1) to (7) indicate each step.

First, the registration rollers 321a and 321b.
And drive the full-face belt 303 to move the original to the sheet path I
From the belt motor M3 to convey from the
When 02 is rotated in the normal direction (1), at the same time, the size checker counter that counts by the clock signal input from the belt clock interrupter PI302 is started (2),
At the same time when the measurement of the document size is started, the resist processing described later is started (3). Then, when the document is conveyed and the leading edge thereof is detected by the registration sensor S302 (4),
The size checker counter is stopped (5), and the document size is determined based on the count data by the size check routine described later (6). Next, when the resist processing started in step (3) is completed (7), the paper feed processing routine is ended.

FIG. 15 is a flow chart showing an example of the detailed procedure of the jogging processing routine in the copying apparatus according to the present invention. Note that (1) to (9) indicate each step.

When the jogging process for aligning the document bundle S in the width direction is started, a counter JOG-CN for determining the number of times of jogging is initialized (JOG-CN ← 0) (1). Next, a jogging solenoid (JO) for pushing out a jogging guide (not shown) of the width regulating member.
(G-SL) is turned on (2), timer JOG-TM that can be set arbitrarily at the same time is started (3), and timer JOG is started.
-When the set time of TM is completed (4), turn off the jogging solenoid (JOG-SL) (5), start the timer JOG-TM that can be arbitrarily set in the same manner as above (6), and set the timer JOG-TM. When the set time ends (7), the number of times of the counter JOG-CN is increased (8), until the reciprocating movement of the jogging guide of the width regulating member ends three times (9), the process returns to step (2), and the above processing is performed. repeat. by this,
The original stack S is aligned in the width direction, and skew feeding, lateral registration, etc. can be prevented.

FIG. 16 is a flow chart showing an example of a detailed procedure of a document size check processing routine in the copying apparatus according to the present invention. It should be noted that (1) to (11) indicate each step.

First, data obtained by adding the size check counter data of the size check counter and the distance between the registration sensor S302 and the registration rollers 321a and 321b is set as size data (1). Next, it is judged whether or not the size data is smaller than the A3 data stored in advance (2).
3 ”(10), the size check counter is cleared (11), and the process ends.

On the other hand, if the result of the determination in step (2) is YES, it is determined whether the size data is smaller than the B4 data stored in advance (3). If NO, it is determined that the document size is "B4". (9) The size check counter is cleared (11), and the process ends.

On the other hand, if the result of the determination in step (3) is YES, it is determined whether or not the size data is smaller than the A4R data stored in advance (4). If NO, it is determined that the document size is "A4R". (8) Clear the size check counter (11) and end the process.

On the other hand, if the result of the determination in step (4) is YES, it is determined whether the size data is smaller than the A4 data stored in advance (5). If NO, it is determined that the document size is "A4". (7) The size check counter is cleared (11), and the process ends.

On the other hand, if the result of the determination in step (5) is YES, the document size is determined to be "B5" (6), the size check counter is cleared (11), and the process is terminated.

FIG. 17 is a flow chart showing an example of a detailed procedure of a resist processing routine in the copying machine according to the present invention. Note that (1) to (7) indicate each step.

First, the trailing edge of the original is set to the registration sensor S30.
If 2 is detected (1), that is, the registration sensor S30
After 2 detects the leading edge of the document and turns on, and then detects the trailing edge of the document and turns off, the resist counter RGCN for stopping the document at a predetermined position on the platen glass 101 is set (2), and the resist counter RGCN is set. Start (3). The registration counter RGCN is counted by the belt clock interrupter, and the document feed amount and the count value are surely matched. Next, in order to accurately stop at the stop position on the platen glass 101, the low speed control of the belt motor M302 is started, the control is continued until the registration counter RGCN is finished (4), and when the registration counter RGCN is finished.
(5) The output of the belt motor M302 is turned off (6), and the electromagnetic brake is turned on to stop at a predetermined position (7).

FIG. 18 is a flow chart showing an example of a data set processing procedure of the registration counter RGCN in the copying apparatus according to the present invention. Note that (1) to (3) indicate each step.

First, it is judged whether or not there is an instruction to feed a document skipped by n originals from the original stop reference position on the platen glass 101 (1). If NO, the values up to the original stop reference position are set. Set (2), return processing,
If YES, a value obtained by adding n-1 times the size length of the fed document size in the feeding direction to the value up to the document stop reference position is set in the registration counter RGCN (3), and the process is returned.

FIG. 19 is a flow chart showing an example of a detailed procedure of a document determination processing routine in the copying apparatus according to the present invention. In addition, (1) to (19) indicate each step.

First, the flapper solenoid FLAPSL is driven (1) to form the reverse path of the document (the path from the sheet path IV to the sheet path V), and the flapper 320
Is moved to the downward position shown in FIG. Next, the belt motor M302 is driven in the reverse direction (2), and the document is passed through the sheet path II.
The original is conveyed in the path direction from I to sheet path IV.
Next, when the sensor S303 detects the trailing edge of the document (3)
Then, the transport motor M303 is driven in the normal direction (4), and at the same time as preparation for document reception, the reverse counter TC1 for determining the timing for controlling the transport motor M303 and the belt motor M302 at low speed is started (5), When the reverse counter TC1 is finished (6), the belt motor M302
And start the low speed control of the transport motor M303 (7), (8),
After that, if the sensor S302 detects the trailing edge of the document,
(9), start the reverse loop counter TC2 (10), wait for the end of the reverse loop counter TC2 (11), and turn off the driving of the belt motor M302 and the conveyance motor 303 (1
2).

At this time, the inversion counter TC1 has the sensor S
The distance from 303 to the sensor S302 is set to be about 10 mm shorter, and by performing the low speed control of the belt motor M302 and the conveyance motor 303 from that position, it is possible to sufficiently decelerate before colliding with the registration roller 321. Since the leading edge of the document abuts against the nip portion of the registration roller 321 at a low speed, it is possible to prevent damage to the trailing end of the document, reduce the collision noise, and stop the loop with a predetermined amount of loop formed. Even if skew occurs during reversal, it has the function of correcting this.

Then, the stability timer TT1 for stabilizing the loop is started (13), and when the stability timer TT1 is finished (14), the belt motor M302 and the conveyance motor M30.
3 while controlling the speed so that the original feed amount is equal and the speed is constant (15), the original is moved from sheet path V to sheet path II.
When the registration process to be described later is started (16), the sensor S302 is turned off and the trailing edge of the document is detected (17), the conveyance motor is turned off (18), and the registration process is waited for. (19), the process ends.

FIG. 20 is a flow chart showing an example of the detailed procedure of the paper discharge processing routine in the copying machine according to the present invention. In addition, (1) to (17) indicate each step.

First, in order to eject the original on the platen glass 101, the belt motor M302 is reversely turned on (1), and when the leading edge of the original is detected by the paper ejection sensor S303 (2), the conveyance motor M303 is turned on ( 3). Therefore, the original is conveyed from the sheet path III to the sheet path IV, and when the trailing edge of the original is detected by the paper discharge sensor S303 (4), the sensor level check routine 2 is executed (5), and the paper is conveyed for paper discharge alignment. The conveyance counter FC1 that controls the timing of starting the speed control of the motor M303 is started (6), and when the conveyance counter FC1 ends (7), the document is placed on the document table 305.
The counter FC2, which determines the distance for discharging the sheet upward, is started (8). The speed control is continued until the counter FC2 is finished (9), and when the counter FC2 is finished (10), the conveyance motor M303 is turned off (11), and the document is placed on the document loading table 30.
Since it takes an interval until it falls on 5, the ejected paper drop timer ORG-DWN-TN is started (12), and when the ejected paper drop timer ORG-DWN-TN ends (13), the ejected document is aligned. At the same time as turning on the jogging solenoid JOG-SL so as to push out the movable walls 329a, 329b (14), a timer EJCT for determining the pushing time.
-Start JOG-TM (15), timer EJCT-J
When OG-TM ends (16), jogging solenoid J
The OGSL is turned off (17), and the paper discharge processing routine ends.

FIG. 21 is a flow chart showing a document order changing 2 in 1 mode processing routine in the copying apparatus according to the present invention. Note that (1) to (9) indicate each step.

First, the separation processing routine and the paper feeding processing routine are sequentially executed (1) and (2), and the first original is placed on the platen glass 101. Then, the retract processing routine is executed (3) to retract the first original on the platen glass 101 to the path toward the sheet path IV and the sheet path VI shown in FIG.

Then, similarly to the above, the separation processing routine and the paper feeding processing routine are sequentially executed (4) and (5), and when the second original is placed on the platen glass 101, the moving paper feeding processing routine is executed. (6) The placement order of the first and second originals placed on the platen glass 101 is exchanged, and the originals are placed on the platen glass 101 again in parallel.
Next, when a paper discharge command is received (7), a paper discharge processing routine is executed (8), the first original is discharged onto the document stacking table 305 of the RDF 300, and the paper discharge processing routine is executed again ( 9) Place the second document on the RDF300 document stack 3
The paper is discharged to 05 and the processing is ended.

FIG. 22 is a flow chart showing an example of the detailed procedure of the save processing routine in the copying apparatus according to the present invention. Note that (1) to (6) indicate each step.

First, in order to retract the original on the platen glass 101, the belt motor M302 is reversely turned on (1), and when the leading edge of the original is detected by the paper discharge sensor S303 (2), the original stop position on the platen glass 101 is reached. The transport counter FC1 set so that the trailing edge of the document is stopped at a position between the documents designated with reference to (3), the belt motor M302 is controlled at a low speed (4), and the transport motor M303 is set to the motor M302. The uniform speed control is performed (5), and when the carry counter FC1 is finished (6), the evacuation process is finished.

FIG. 23 is a flow chart showing an example of a detailed procedure of a moving paper feed processing routine in the copying machine according to the present invention. Note that (1) to (12) indicate each step.

First, a belt clock counter BCOUNT and a conveyance clock counter FC for counting the amount of conveyance of the belt 303 and the conveyance roller 315 in order to detect a change between the originals while simultaneously moving two originals.
Start OUNT respectively (1), (2).

Then, the belt motor M302 is turned on in the normal direction (3), and the conveyance motor M303 is turned on in the reverse direction at the same speed as the belt motor (4). Next, waiting for the paper discharge sensor S303 to detect the trailing edge of the document A (5), the paper discharge sensor S303 is detected.
When the trailing edge of the original A is detected, the belt clock counter BCOUNT and the transport clock counter FCOUNT are stopped (6) and (7), respectively, and the trailing edge of the original is set to the original stop position on the platen glass 101. The conveyor counter FC1 is started (8), the speed of the belt is controlled to a predetermined speed, the conveyor motor M303 is controlled at the same speed as the belt motor M302 (9), and when the conveyor counter FC1 ends (10), the electromagnetic brake is turned on. (11), the full-face belt 303 is stopped, and the paper interval is detected from the belt clock counter and the transport clock counter FCOUNT (12),
The sheet interval data is sent to the main body CPU 801, and the moving sheet feeding process ends.

FIG. 24 is a flow chart showing a 2 in 1 mode processing routine without original order change in the copying apparatus according to the present invention. It should be noted that (1) to (11) indicate each step. First, the separation processing routine and the paper feeding processing routine are sequentially executed (1) and (2), and the first original is placed on the platen glass 101. Then start the separation process routine,
After separating the second original, a pre-feeding processing routine for adjusting the distance between the first original and the second original is executed.
(Four) . Next, a movement processing routine for placing two originals side by side on the platen glass 101 is executed (5). Next, when a paper discharge command is received (6), a large reversal processing routine described later is executed (7), and two originals on the platen glass 101 are reversed at the same time. Next, a reversing processing routine for reversing the first original is executed (8), and a paper discharging processing routine for discharging the original on the original stacking table 305 is executed (9).
Execute the inversion process routine to invert the first document (10),
A paper discharge process routine for discharging the document on the document stacking table 305 is executed (11), and the process ends. As a result, the copying process can be performed without changing the order and the front and back of the document stack placed on the document stacking table 305.

FIG. 25 is a flow chart showing an example of the detailed procedure of the pre-feeding processing routine in the copying apparatus according to the present invention. It should be noted that (1) to (5) indicate each step.

First, the joint clutch JNTCL is turned on (1) to connect the separation section and the registration roller to enable the separation roller, the separation conveyance belt, and the registration roller to operate.
At the same time when the separation motor M301 is turned on (2), the pre-feed timer is started (3).

Incidentally, the separation motor M is set in the preceding paper feeding timer.
By driving 301, the time is set so that the document PA is conveyed from the nip portion of the registration rollers to the position between the designated documents from the exposure reference position.

Then, when the pre-feed timer expires (4),
The separation motor is immediately turned off (5), and the pre-feed processing routine ends.

FIG. 26 is a flow chart showing an example of a detailed procedure of a moving paper feed processing routine in the copying machine according to the present invention. Note that (1) to (7) indicate each step.

First, the belt motor M302 is normally rotated (1).
Wait until the registration sensor S302 detects the trailing edge of the original PA (2), and the registration sensor S302 detects that the original PA
When the trailing edge of the sheet is detected, the registration counter RGCN is activated in the same manner as the above-described paper feed processing routine (3),
At the same time, start speed control of the belt motor M302 (4),
Speed control is executed until the registration counter RGCN is finished, and when the registration counter RGCN is finished (5)
The belt motor M302 is turned off (6), the electromagnetic brake is turned on (7), and the moving paper feed processing routine is ended.

FIG. 27 is a flow chart showing an example of the detailed procedure of the large inversion processing routine in the copying apparatus according to the present invention. In addition, (1) to (30) show each step. First, a flapper solenoid FLA is used to form an inversion path of a document (a path from the sheet path IV to the sheet path V).
The PSL is driven (1), the flapper 320 is moved to the position indicated by the dotted line in FIG. 2, and then the belt motor M302 is driven in the reverse direction (2) to convey the document from the sheet path III to the sheet path IV. To do. Next, when the leading edge of the document is detected by the discharge sensor S303 (3), the conveyance motor M30
3 is driven in the normal direction (4), the carry counter TCI is started (5), and the carry motor M303 is driven in the normal direction until the carry counter TCI is finished, and the document is fed to the carry roller 315. When the carry counter TCI is finished (6), the reverse rotation speed control of the belt motor M302 and the carry motor M303 are performed.
(7) is started, and the linear velocity of the large conveyance roller 315 and the linear velocity of the full-face belt 303 are set to be equal to each other, or the belt is set to be slightly slower.

Next, when the sensor S302 detects the leading edge of the document (8), the reverse loop counter TC2 is registered and started (9), and the completion of the reverse loop counter TC2 is awaited (10). Then, the belt motor M302 and the conveyance motor M303 are performed. Turn off the drive (11). At this time, the reverse counter TC1 is set to be about 10 mm shorter than the distance from the paper discharge sensor S303 to the registration sensor S302, and the belt motor M302 and the conveyance motor M303 are controlled at a low speed from that position to sufficiently perform registration. It is possible to decelerate before colliding with the roller 321, so that the leading edge of the document abuts against the nip portion of the registration roller 321 at a low speed, so that the trailing edge of the document can be prevented from being damaged and the collision noise can be reduced. Further, it can be stopped in the state where a predetermined amount of loop is formed, and even if skew occurs at the time of reversal, it has a function of correcting this.

Next, the stability timer TT1 for stabilizing the loop is started (12), and after waiting for the end of the stability timer TT1 (13), while controlling the speed of the carry motor M303 (14), the original is sheeted. When the sheet is fed by a predetermined length in the path direction from the path V to the sheet path II, the sheet discharge sensor S303 is turned off (15), and the trailing edge of the document is detected, the conveyance motor M
303 is turned off (16), the reverse rotation drive of the belt motor M302 is turned on (17), and the belt reverse rotation counter BC1 is started.
(18) When the belt reverse rotation counter BC1 ends (19) and the discharge sensor S303 detects the leading edge of the document, the document is transported by a predetermined distance such that the leading edge of the document abuts the large transport roller 315. The speed of the belt motor M302 is controlled in the reverse direction by a predetermined distance until the second document is sufficiently gripped by the conveying roller, and whether the linear velocity of the conveying motor M303 is equal to the linear velocity of the full-face belt 303. The speed is controlled to be somewhat faster (20).

Then, the inversion counter TC1 is started.
(21) When the reversal counter TC1 ends (22), the belt motor M302 and the conveyance motor M303 are turned off (23).
Next, the belt stop timer TB1 is started (24), and when the belt stop timer TB1 ends (25), the conveyance motor M
While controlling the speed of 303, the speed of the entire surface belt 303 is controlled to be equal to or slightly higher than the linear speed of the conveying roller (26), the resist processing is started (27), and the registration sensor S302 is set to 2 sheets. If you detect the trailing edge of the eye document (28),
The conveyance motor M303 is turned off (29), and when the activated registration processing is completed (30), the large reversal processing routine for reversing two originals at the same time is completed.

It should be noted that in the above embodiment, the odd and even of the original is determined by the RDF.
Although the case of determining by the count mode process of 300 has been described, it may be configured to determine whether the document is odd or even by inputting the odd-even input key 634 on the operation panel shown in FIG. Without doing
Immediately start the 2 in 1 copy mode.

Further, the odd / even of the original may be judged based on the numeric keypad or the like on the operation panel shown in FIG. The 2 in 1 copy mode is immediately started without performing the document count process.

FIG. 28 is a flow chart showing an example of the first document feeding control processing procedure in the copying apparatus according to the present invention. Note that (1) to (4) indicate each step.

First, the CPU 901 determines whether or not the 2in1 key 630 has been pressed (1). When the 2in1 key 630 has been pressed, it is determined by the manuscript selection key 632 which of a portrait document and a landscape document has been selected (2), When it is determined that the portrait document is selected, the document order changing 2 in 1 mode processing routine shown in FIG. 21 is executed (3), and the bottom of the document stack ST placed as shown in FIG. Starting feeding from the original with the number of pages “3”, executing the retract feeding with the RDF 300, the original with the number of pages “2” and the original with the number of pages “3” are exchanged and placed on the platen glass GA. Place. This makes it possible to obtain a 2-in-1 copy in which the page order is uniform even for a vertically written original.

On the other hand, if it is determined in step (2) that the horizontal document has been selected, the 2-in-1 mode process routine without document order change shown in FIG. 24 is executed (4), and as shown in FIG. Feeding is started from the bottom of the stack of documents ST placed on the document, that is, from the document having the page number "3", and the document having the page number "2" is sequentially fed.

On the operation panel shown in FIG.
When the number of originals designated by the n1 key 635 is placed on the platen glass GA, the order among the plurality of originals corresponding to one transfer sheet is selectively changed as shown in FIGS. By making it possible to replace it with, it is possible to accurately output the Nin1 copy corresponding to the vertically written document / horizontally written document.

The second to sixth document feeding control operations in the copying apparatus according to the present invention will be described below with reference to FIG. 33 to FIG.

FIG. 33 is a flow chart showing an example of a second document feeding control procedure in the copying apparatus according to the present invention. It should be noted that (1) to (5) indicate each step.

First, the number of originals to be copied on one transfer sheet is designated by the ten keys 603 (1), and the number of originals to be placed on the platen glass GA is designated by the Nin1 key 635 ((2) ), Compares the specified number of originals to be placed with the set number of set originals, and determines whether the number of specified originals to be placed is less than or equal to the set number of originals.
(3) If YES, the designated number of originals are sequentially fed from the RDF 300 (4), and the process returns.

On the other hand, in the case of NO in the step (3), the error of the designated number of sheets by the Nin1 key 635 is notified (5), and the routine is returned. As a result, the platen glass G
When the number of originals to be placed on A is specified, it is possible to feed the originals according to the specified number.

FIG. 34 is a flow chart showing an example of the third document feeding control procedure in the copying apparatus according to the present invention. Note that (1) to (7) indicate each step.

First, the number of originals to be copied on one transfer sheet is designated by the ten keys 603 (1), and the number of originals placed on the platen glass GA is designated by the Nin1 key 635 (2). ), Compares the specified number of originals to be placed with the set number of set originals, and determines whether the number of specified originals to be placed is less than or equal to the set number of originals.
(3) If YES, the designated number of originals are sequentially fed from the RDF 300 (4), and the process returns.

On the other hand, in the case of NO in the step (3), the error of the designated number of sheets by the Nin1 key 635 is notified (5), the designated number value is cleared (6), and the Nin1 key 63
The system waits for the re-input of the designated number by 5 (7), and if there is a re-input, returns to step (3). As a result, it is possible to invalidate the incorrect designation of the number of originals, and it is possible to reliably prohibit the incorrect execution of the Nin1 copy.

FIG. 35 is a flow chart showing an example of a fourth document feeding control procedure in the copying apparatus according to the present invention. Note that (1) to (7) indicate each step.

First, the number of originals placed on the platen glass GA is designated by the Nin1 key 635 (1), and when the original size is detected by the output of the sensor S1 (2).
The CPU 901 calculates the first maximum number of sheets that can be placed on the platen glass GA from the detected document size and the effective length of placing the document on the platen glass (3). Then, the calculated first maximum number of sheets is compared with the designated number of sheets designated in step (1) to determine whether the designated number of sheets exceeds the first maximum number of sheets (4). Start sending
(5) Feed the specified number of originals to the platen glass GA,
To return.

On the other hand, if the determination in step (4) is YES, an error of the designated number of sheets by the Nin1 key 635 is notified (6), and the re-input of the designated number of sheets by the Nin1 key 635 is waited (7), and the re-input is performed. If there is, return to step (4).
This makes it possible to invalidate an erroneous document number designation that exceeds the document placement effective length, and to reliably inhibit erroneous Nin1 copy execution.

FIG. 36 is a flow chart showing an example of the fifth document feeding control procedure in the copying apparatus according to the present invention. In addition, (1) to (10) indicate each step.

First, the number of originals to be placed on the platen glass GA is designated by the Nin1 key 635 (1), and then the original size is detected by the output of the sensor S1 (2).
Then, the transfer paper size is detected (3), and when the copy magnification set on the operation unit is detected (4), the CPU 8
01 or the CPU 901 calculates the effective scan length at the time of copying from the detected transfer paper size and copy magnification (5), and the platen glass G is calculated from the effective scan length obtained by this calculation.
The second maximum number of sheets that can be placed on A is calculated (6). Then, the calculated second maximum number of sheets is compared with the designated number of sheets designated in step (1) to determine whether the designated number of sheets exceeds the second maximum number of sheets (7). The feeding is started (8), the designated number of originals are fed to the platen glass GA, and the process returns.

On the other hand, if the judgment in step (7) is YES, an error of the designated number of sheets by the Nin1 key 635 is notified (9), and the re-input of the designated number of sheets by the Nin1 key 635 is awaited (10) and the re-input is performed. If there is, return to step (7).
This makes it possible to invalidate an erroneous document number designation that exceeds the effective scan length, and to reliably inhibit erroneous Nin1 copy execution.

FIG. 37 is a flow chart showing an example of a sixth document feeding control procedure in the copying apparatus according to the present invention. It should be noted that (1) to (8) indicate each step.

First, the number of originals to be copied on one transfer sheet is designated by the ten keys 603 (1), and the platen glass G
When the mode of the document placed on A is selected by the placement mode selection key 636 of the operation unit (2), the second placement mode for placing the number of documents or less on the platen glass GA is set. It is judged whether or not it has been selected (3), and if NO, the process proceeds to step (8), where the RDF 300 feeds to a predetermined placement position in the document separation order and returns. If YES, the placement position is designated by the position designation key. Wait for input by 637
(4) It is determined whether or not the position is in the vicinity of the document placement reference (in this embodiment, the position detected by the image tip sensor is used as the document placement reference (see FIG. 8 for details)) (5), and if YES For example, the document designated as the document placement standard is fed (6) and the process returns.

On the other hand, if NO in step (5), a predetermined length from the original placement reference position (in this embodiment, {(Nin1 key 6
35)-(number of sheets to be placed on the platen glass GA)} × (length of the number of originals) The originals are fed to a position on the platen glass GA which is distant (7), and the process returns. .

When the number of sheets to be placed on the platen glass GA is smaller than the number designated by the Nin1 key 635, the platen glass G is determined from the transfer sheet size and the copy magnification.
The point farthest from the placement reference position when performing a scan on A is obtained, and when placing the document, the document can enter the placement reference base side from the above-mentioned point, and the most from the placement reference position. The same effect can be expected even if the document is placed at a distant position.

Hereinafter, referring to the flow charts shown in FIGS. 38 and 39, the first and the first in the copying machine according to the present invention will be described.
The second frame erasing processing operation will be described.

FIG. 38 is a flow chart showing an example of the first frame erasing processing procedure in the copying apparatus according to the present invention. Note that (1) to (7) indicate each step. Further, it corresponds to the case where the frame erasing process shown in the present embodiment is applied to the copy process 1 (see FIG. 9).

When the sensor 117 serving as an image tip sensor detects the image tip of the document PA shown in FIG. 8 (1), blank exposure is performed while the optical scanning system scans in the sub-scanning direction by a predetermined frame length. LEs arranged in the main scanning direction of the unit 137
Perform blank exposure 1 with all D turned on (2),
(3). As a result, the electrostatic latent image on the photosensitive drum 131 is erased, and the frame erase on the left side of the transfer sheet is completed.

Next, a length obtained by subtracting the length of the predetermined frame from the length of the original PA in the sub-scanning direction, a predetermined distance between sheets, and a length of the original PB in the sub-scanning direction are determined by a predetermined frame. Perform blank exposure 2 in which both ends are lit while scanning for the total length of the lengths after subtracting the length of (4)
,(Five) . The blank exposure unit 1 that is turned on at this time
The lengths of both ends of the LED of 37 are half of the value obtained by subtracting the length of the original in the main scanning direction from the total LED length and further adding the lengths of predetermined upper and lower frames. with this,
The erase of the upper and lower parts of the transfer paper is completed. Next, during scanning for a predetermined frame length in the sub-scanning direction, blank exposure 1 in which all the LEDs of the blank exposure unit 137 are turned on is executed (6), (7). As a result, the erasing of the right frame of the transfer paper is completed.

FIG. 39 is a flow chart showing an example of the second frame erasing processing procedure in the copying apparatus according to the present invention. Note that (1) to (9) indicate each step. Further, it corresponds to the case where the frame erasing process shown in this embodiment is applied to the copy process 3 (see FIG. 11).

When the sensor 117 serving as an image tip sensor detects the image tip of the original PA shown in FIG. 8 (1), blank exposure is performed while the optical scanning system scans in the sub-scanning direction by a predetermined frame length. LEs arranged in the main scanning direction of the unit 137
Perform blank exposure 1 with all D turned on (2),
(3). As a result, the electrostatic latent image on the photosensitive drum 131 is erased, and the frame erase on the left side of the transfer sheet is completed.

Then, during scanning for a length obtained by subtracting twice the length of the predetermined frame from the length of the original PA in the sub-scanning direction, blank exposure 2 is performed in which both ends thereof are lit (4), (Five) . This completes the frame erasing of the upper and lower portions of the transfer paper. At this time, the length of both ends of the turned-on LED is half of the value obtained by subtracting the length of the original in the main scanning direction from the length of all LEDs and adding the lengths of predetermined upper and lower frames. It becomes a value.

Next, while scanning a predetermined frame length in the sub-scanning direction, L of the blank exposure unit 137 is set.
Perform blank exposure 1 to turn on all EDs (6),
(7) The right half of the left half of the transfer paper can be erased.
Next, when the image front of the original PA is scanned (8), the optical system motor 115 is turned off (9), and the processing is ended. As a result, for example, the A4 size original can be erased and transferred onto the left half of the A3 size transfer paper.

The originals PA and PB in the main scanning direction,
The length in the sub-scanning direction is obtained by the document size signal from the RDF 300. Also, the timing for performing blank exposure is
On the photosensitive drum 131, from the position where an image is latently formed,
The time for the photosensitive drum 131 to rotate to the position for blank exposure is delayed from the timing for scanning the original.

Hereinafter, referring to the flow charts shown in FIGS. 40 and 41, the first and the first in the copying apparatus according to the present invention will be described.
The second sheet spacing frame erasing processing operation will be described.

FIG. 40 is a flow chart showing an example of a first inter-paper frame erasing processing procedure in the copying apparatus according to the present invention. It should be noted that (1) to (11) indicate each step. Further, it corresponds to the case where the frame erasing process shown in the present embodiment is applied to the copy process 1 (see FIG. 9).

When the sensor 117 serving as an image tip sensor detects the image tip of the document PA shown in FIG. 8 (1), blank exposure is performed while the optical scanning system scans in the sub-scanning direction by a predetermined frame length. LEs arranged in the main scanning direction of the unit 137
Perform blank exposure 1 with all D turned on (2),
(3). As a result, the electrostatic latent image on the photosensitive drum 131 is erased, and the frame erase on the left side of the transfer sheet is completed.

Then, blank exposure 2 is executed in which both ends of the LED of the blank exposure unit 137 are turned on for a length obtained by subtracting twice the length of the predetermined frame from the length of the original PA in the sub-scanning direction ( 4), (5). This erases the top and bottom of the electrostatic latent image. At this time, the length of both ends of the turned-on LED is half of the value obtained by subtracting the length of the original in the main scanning direction from the length of all LEDs and adding the lengths of predetermined upper and lower frames. It becomes a value. This completes the frame erasing of the upper and lower parts of the left half of the transfer paper.

Next, all the LEDs of the blank exposure unit 137 are turned on (6) and (7) during scanning for twice the length of the predetermined frame and for the length of the predetermined paper. This completes erasing the frame between the sheets.

Next, blank exposure 2 is executed in which both ends of the LED of the blank exposure unit 137 are turned on for a length obtained by subtracting twice the length of the predetermined frame from the length of the original PB in the sub-scanning direction ( 8), (9). As a result, the frame erasing of the upper and lower parts of the right half of the transfer paper is completed.

Next, during scanning in the sub-scanning direction by the length of a predetermined frame, blank exposure 1 in which all the LEDs arranged in the main scanning direction of the blank exposure unit 137 are turned on is executed (10), ( 11). As a result, the erasing of the right frame of the transfer paper is completed.

It should be noted that, in the above-described first inter-page border erasing process, the main body 100 obtains the number of originals, the original size, and the inter-paper length signal as signals obtained from the RDF 300. In addition, in the above-described first sheet spacing frame erasing process, in steps (6) and (7), the sheet spacing is set to a predetermined length. However, the sheet spacing detection means of the RDF 300 (for example, the document detection sensor S1) is described. It may be configured such that the inter-paper frame erasing is executed based on the obtained inter-paper length. As a result, even if the distance between the sheets of the document actually placed on the platen glass changes, it is possible to erase the sheet frame accurately according to the length of the sheet.

FIG. 41 is a flow chart showing an example of the second inter-paper frame erasing processing procedure in the copying apparatus according to the present invention. Note that (1) to (7) indicate each step. Further, the frame erasing process shown in this embodiment is a copy process 3 (see FIG. 11).
It corresponds to when applied to. Further, it is a process corresponding to the case where the space between sheets is offset by the document placement.

When the sensor 117 serving as an image tip sensor detects the image tip of the document PA shown in FIG. 8 (1), blank exposure is performed while the optical scanning system scans in the sub-scanning direction by a predetermined frame length. LEs arranged in the main scanning direction of the unit 137
Perform blank exposure 1 with all D turned on (2),
(3). As a result, the electrostatic latent image on the photosensitive drum 131 is erased, and the frame erase on the left side of the transfer sheet is completed.

Next, from the sum of the length in the sub-scanning direction of the original document PA and the length in the sub-scanning direction of the original document PB, the length twice the predetermined frame length and the sheet interval detecting means in the RDF 300 were obtained. Blank exposure 2 in which the LED of the blank exposure unit 137 is turned on is executed by the length obtained by subtracting the overlapping length (4), (5). As a result, the top and bottom of the electrostatic latent image are erased. At this time, the lengths of both ends of the turned-on LED are half the value obtained by subtracting the length of the document in the main scanning direction from the length of all the LEDs and further adding the lengths of predetermined upper and lower frames. Becomes the value of.

Next, while scanning a predetermined frame length in the sub-scanning direction, L of the blank exposure unit 137 is set.
Perform blank exposure 1 with all EDs turned on (6),
(7). As a result, the right frame of the transfer paper can be erased. Further, when the originals are overlapped with each other, it is possible to omit erasing the frame between the sheets and reduce power consumption.

In the second blanking process, the lengths of the originals PA and PB in the main scanning direction and the sub-scanning direction are obtained from the original size signal from the RDF 300. Further, the timing of blank exposure is the time during which the photosensitive drum 131 rotates from the position where an image is latently formed on the photosensitive drum 131 to the position where blank exposure is performed.
CPU 801 so that the timing of document scanning is delayed
Is in control.

[0186]

As described above, according to the present invention, the first placement mode in which the documents sequentially separated by the mode designating means are placed on the platen glass in the order of separation and the documents in the order of separation are referred to as the order of separation. When one of the second placement modes for placing on the platen glass in a different order is designated, the feeding control means separates and feeds each original from the original feeding means based on the mode designation state. Since the originals are controlled to be placed on the platen glass in an order different from the separation order, even if the written format of the originals is different between vertical writing and horizontal writing, the copy output in which the page order is normalized is output. Obtainable.

When the number of originals to be placed on the platen glass is specified by the original number specifying means, the feeding control means controls the order of placing the originals to be separated and fed according to the designated number. Since it is configured as described above, when copying three or more originals onto one transfer sheet, even if the description format of the originals is different between vertical writing and horizontal writing, it is possible to obtain a copy output in which the page order is normalized. You can

Further, the number of originals sequentially fed from the original feeding means by the original number designating means and simultaneously placed on the platen glass is designated, and the original number setting means copies onto one transfer sheet. When the number of originals to be set is set, the control unit is configured to control the number of originals to be fed from the original feeding unit based on the designation of the number of originals to be placed on the platen glass at the same time. When the number of originals set by the setting unit exceeds the number specified by the original number specifying unit, the originals can be fed onto the platen glass with priority given to the number specified by the original number specifying unit.

Further, the set number set by the number-of-documents setting unit and the designated number specified by the number-of-originals specifying unit are compared and collated, and the first number-of-inhibiting unit uses the number-of-original-designating unit that exceeds the set number. Since the specification of the number of originals is prohibited, it is possible to invalidate the incorrect specification of the number of originals by monitoring the incorrect input of the number of originals specified by the original number specifying means.

Further, the first maximum number of sheets that can be placed on the platen glass is calculated from the original size detected by the original size detecting means and the original placement effective length on the platen glass by the first stacking sheet number calculating means. And the second prohibiting means compares and collates the first maximum number of sheets with the number of originals by the original number specifying means, and prohibits the number of originals specifying by the original number specifying means that exceeds the second maximum number. Therefore, it is possible to invalidate an erroneous document number designation that exceeds the document placement effective length by monitoring the erroneous document number designation input from the document number designation means.

When the effective scan length at the time of copying is calculated from the transfer paper size detected by the transfer paper size detecting means by the scan length calculating means and the copy magnification detected by the magnification detecting means, the second stacked sheet number calculating means From the effective scan length, the second maximum number of sheets that can be placed on the platen glass is calculated, and the third inhibiting means compares and collates the second maximum number with the number of original sheets by the original sheet number designating means. Since it is configured to prohibit the number of originals specified by the original number specifying means that exceeds the maximum number of sheets, the incorrect number of originals input from the original number specifying means is monitored, and the incorrect number of originals exceeding the effective scan length is monitored. The designation can be invalidated.

Further, when the second placing mode for placing the originals on the platen glass by the selecting means on the platen glass is equal to or less than the number of originals set by the original number setting means, the position specifying means selects the original feeding means. Since the position where each original fed from is placed can be designated, the position of each original can be selected and designated when the number of placed originals is different from the designated number.

Further, when the second placement mode for placing the originals on the platen glass with the number of originals set by the original number setting means or less is selected by the selection means, the placement position control means operates the platen glass. The number of originals placed and the specified number of originals are set because the control is set to a position near the original placement position reference set above or a position separated from the original placement position reference set on the platen glass by a predetermined length. When the originals are different, the placement position of each original can be automatically set.

Further, when the second loading mode is selected in which the number of originals equal to or less than the number of originals set by the number-of-originals setting means is selected on the platen glass by the selecting means, the mounting position control means causes the platen glass to operate. Since it is configured to be controlled to a position near the original placement position reference set above or a position separated by an integer multiple of the original size from the original placement position reference set on the platen glass, the original placement position is set. When the number of sheets and the designated number of sheets are different, the placement position of each document can be automatically set to the optimum position for the document size.

Further, the frame erasing control unit performs the frame erasing exposure of the frame erasing unit based on the size of the document detected by the document size detecting unit and the number of documents sequentially separated and fed from the document feeding unit onto the platen glass. Since it is configured to be controlled, it is possible to perform the automatic document frame erasing process most suitable for the document size of the documents sequentially separated and fed onto the platen glass.

Further, since the frame erasing control means is configured to control the frame erasing exposure of the frame erasing means according to the space between the sheets detected by the paper space detecting means, the original is placed without the paper space. In this case, the automatic document frame erasing process can be restricted.

Further, the inter-paper-frame erasing control means is operated by the inter-paper-frame erasing means based on the size of the original detected by the original-size detecting means and the number of originals sequentially separated and fed from the original feeding means onto the platen glass. Since it is configured to control the inter-frame border exposure, the automatic inter-frame border erase processing can be performed that is optimum for the document size of the documents sequentially separated and fed onto the platen glass.

Further, since the inter-paper-frame erasing control means is configured to control the erasing exposure of the inter-paper-frame erasing means in accordance with the inter-paper space detected by the inter-paper-frame detecting means, the original document can be printed without the paper space. When the sheet is placed, it is possible to limit the automatic inter-paper frame erasing process.

Further, since the frame erasing exposure of the sheet interval frame erasing means is limited according to the sheet interval length detected by the sheet interval detecting means, the automatic sheet interval is adjusted according to the detected sheet length. The frame erasing process can be selectively executed.

Therefore, the Nin1 copy in which a plurality of originals are copied in a regular order or a desired order on one sheet of transfer paper can be surely obtained by a simple operation.

[Brief description of drawings]

FIG. 1 is a cross-sectional view illustrating the configuration of a copying apparatus showing an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view illustrating the configuration of the RDF shown in FIG.

FIG. 3 is a plan view of a main part of the RDF shown in FIG.

4 is a plan view showing an arrangement configuration example of an operation panel provided in the main body shown in FIG. 1. FIG.

5 is a block diagram illustrating a control configuration of the copying apparatus shown in FIG.

FIG. 6 is a flowchart showing an example of a 2 in 1 mode processing procedure in the copying apparatus according to the present invention.

FIG. 7 is a flowchart showing an example of a 2 in 1 mode processing procedure in the copying apparatus according to the present invention.

FIG. 8 is a plan view showing a document arrangement state in a 2-in-1 mode in the copying apparatus according to the present invention.

FIG. 9 is a flowchart showing an example of a detailed procedure of copy processing 1 in the copying apparatus according to the present invention.

FIG. 10 is a copy process 2 in the copying apparatus according to the present invention.
3 is a flowchart showing an example of a detailed procedure of FIG.

FIG. 11 is a copy process 3 in the copying apparatus according to the present invention.
3 is a flowchart showing an example of a detailed procedure of FIG.

FIG. 12 is a main flowchart showing an example of a double-sided copy processing procedure in the copying apparatus according to the present invention.

FIG. 13 is a flowchart showing an example of a detailed procedure of a separation processing routine in the copying apparatus according to the present invention.

FIG. 14 is a flowchart showing an example of detailed procedures of a paper feed processing routine in the copying apparatus according to the present invention.

FIG. 15 is a flowchart showing an example of detailed procedures of a jogging processing routine in the copying apparatus according to the present invention.

FIG. 16 is a flowchart showing an example of detailed procedures of a document size check processing routine in the copying apparatus according to the present invention.

FIG. 17 is a flowchart showing an example of a detailed procedure of a resist processing routine in the copying apparatus according to the present invention.

FIG. 18 is a flowchart showing an example of a resist counter data set processing procedure in the copying apparatus according to the present invention.

FIG. 19 is a flowchart showing an example of detailed procedures of a document determination processing routine in the copying apparatus according to the present invention.

FIG. 20 is a flowchart showing an example of detailed procedures of a paper discharge processing routine in the copying apparatus according to the present invention.

FIG. 21 is a flowchart showing a document order rearranging 2in1 mode processing routine in the copying apparatus according to the present invention.

FIG. 22 is a flowchart showing an example of a detailed procedure of a save processing routine in the copying apparatus according to the present invention.

FIG. 23 is a flowchart showing an example of a detailed procedure of a moving paper feeding processing routine in the copying apparatus according to the present invention.

FIG. 24 is a flowchart showing a 2 in 1 mode processing routine without original order change in the copying apparatus according to the present invention.

FIG. 25 is a flowchart showing an example of a detailed procedure of a pre-feeding process routine in the copying apparatus according to the present invention.

FIG. 26 is a flowchart showing an example of a detailed procedure of a moving paper feeding processing routine in the copying apparatus according to the present invention.

FIG. 27 is a flowchart showing an example of detailed procedures of a large inversion processing routine in the copying apparatus according to the present invention.

FIG. 28 is a flowchart showing an example of a first document feeding control processing procedure in the copying apparatus according to the present invention.

FIG. 29 is a schematic diagram showing a document placed state by the first document feeding control in the copying apparatus according to the present invention.

FIG. 30 is a schematic diagram showing a document placed state by the first document feeding control in the copying apparatus according to the present invention.

FIG. 31 is a schematic diagram showing a document placed state by the first document feeding control in the copying apparatus according to the present invention.

FIG. 32 is a schematic view showing a document placed state by the first document feeding control in the copying apparatus according to the present invention.

FIG. 33 is a flowchart showing an example of a second document feeding control processing procedure in the copying apparatus according to the present invention.

FIG. 34 is a flowchart showing an example of a third document feeding control processing procedure in the copying apparatus according to the present invention.

FIG. 35 is a flowchart showing an example of a fourth document feeding control processing procedure in the copying apparatus according to the present invention.

FIG. 36 is a flowchart showing an example of a fifth document feeding control processing procedure in the copying apparatus according to the present invention.

FIG. 37 is a flowchart showing an example of a sixth document feeding control processing procedure in the copying apparatus according to the present invention.

FIG. 38 is a flowchart showing an example of a first frame erasing processing procedure in the copying apparatus according to the present invention.

FIG. 39 is a flowchart showing an example of a second frame erasing processing procedure in the copying apparatus according to the present invention.

FIG. 40 is a flowchart showing an example of a first inter-paper frame erasing processing procedure in the copying apparatus according to the present invention.

FIG. 41 is a flowchart showing an example of a second inter-paper frame erasing processing procedure in the copying apparatus according to the present invention.

[Explanation of symbols]

 300 RDF 801 CPU 901 CPU

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Masayuki Honma 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (14)

[Claims] 1. A plurality of originals placed on an original table are sequentially separated and fed onto a platen glass to be placed at a predetermined position, and an original placed on the platen glass is placed on the original table. In a copying apparatus to which a document feeding means for automatically ejecting paper can be connected, a first placement mode for placing sequentially separated documents on the platen glass and a sequence for separating sequentially separated documents Is a mode designation means for designating any one of the second placement modes to be placed on the platen glass in a different order, and based on the mode designation state by the mode designation means, each document from the document feeding means is A copying apparatus, comprising: a feeding control unit that controls separation feeding and places documents on the platen glass in an order different from the separation order. 2. A document number designating unit for designating the number of documents placed on the platen glass is provided, and the feeding control unit separates and feeds each document according to the number designated by the document number designating unit. The copying apparatus according to claim 1, wherein the copying order is configured to be controlled. 3. A plurality of originals placed on an original plate are sequentially separated and fed onto a platen glass to be placed at a predetermined position, and an original placed on the platen glass is placed on the original plate. In a copying apparatus to which a document feeding means for automatically ejecting paper can be connected, a document number designating means for designating the number of documents sequentially separated and fed from the document feeding means and placed on the platen glass at the same time, 1 An original sheet number setting means for setting the number of original sheets to be copied onto one transfer sheet, and an original sheet feeding means based on the original sheet number specified by the original sheet number specifying means during the setting of the original sheet number by the original sheet number setting means. A copying machine comprising: a control unit for controlling the number of fed originals. 4. The number of originals designated by the number-of-original-number designating unit is compared so as to compare the set number of sheets set by the number-of-original-number setting unit with the designated number of sheets designated by the number-of-original-number designating unit. 4. The copying apparatus according to claim 3, further comprising a first prohibiting means for prohibiting. 5. A document size detecting means for detecting a size of a document, and a first size which can be placed on the platen glass based on the size of the document detected by the document size detecting means and the effective length of placing the document on the platen glass. The first maximum number of sheets is calculated by comparing the first maximum number of sheets with the first maximum number of sheets, and the first maximum number of sheets is compared with the first maximum number of sheets. 4. The copying apparatus according to claim 3, further comprising a second prohibition unit that prohibits the number of originals designated by the number of sheets designation unit. 6. A document size detecting means for detecting a size of a document, a transfer paper size detecting means for detecting a transfer paper size, a magnification detecting means for detecting a copy magnification, and a transfer detected by the transfer paper size detecting means. Scan length calculating means for calculating the effective scan length during copying from the paper size and the copy magnification detected by the magnification detecting means, and the size of the original detected by the original size detecting means and the effective scan calculated by the scan length calculating means The second maximum number of sheets for calculating the second maximum number of sheets that can be placed on the platen glass from the length is compared with the second maximum number of sheets designated by the original sheet number designating means. 4. A third prohibiting means for prohibiting the original number designation by the original number designating means that exceeds the second maximum number is provided. Copying apparatus. 7. A plurality of originals placed on an original table are sequentially separated and fed onto a platen glass to be placed at a predetermined position, and an original placed on the platen glass is placed on the original table. In a copying apparatus to which a document feeding unit for automatically ejecting paper can be connected, a document number setting unit for setting the number of documents to be copied onto one transfer sheet, and a set number set by the document number setting unit. Either the first placement mode in which the same number of originals are placed on the platen glass or the second placement mode in which less than the set number of originals set by the original number setting means is placed on the platen glass And a mode selection means for selecting whether or not the second placement mode is selected by the selection means and a placement position on the platen glass for placing each document fed from the document feeding means. Positioning hand Copying apparatus characterized by comprising and. 8. A placement position on the platen glass for placing each document fed from the document feeding unit when the selection unit selects the second placement mode is set on the platen glass. 8. A mounting position control means for controlling the setting at a position near a document mounting position reference set on the platen glass or at a position separated by a predetermined length from the document mounting position reference set on the platen glass. The described copying machine. 9. The copying apparatus according to claim 8, wherein the predetermined length is an integral multiple of the original size. 10. A frame erasing device for exposing a document frame area to erase the frame, and a plurality of documents placed on a document table are sequentially separated and fed onto a platen glass and placed at a predetermined position. An original size detecting means for detecting the size of the original in a copying apparatus to which the original feeding means for automatically discharging the original placed on the platen glass onto the original table can be connected. A frame erasing control unit for controlling the frame erasing exposure of the frame erasing unit based on the size of the document detected by the document size detecting unit and the number of documents sequentially separated and fed from the document feeding unit onto the platen glass. A copying machine characterized by the above. 11. A paper gap detecting means for detecting a paper gap of originals sequentially separated and fed from the document feeding means onto the platen glass is provided, and a frame erasing control means is provided between the papers detected by the paper gap detecting means. 11. The copying apparatus according to claim 10, wherein the copying apparatus is configured to control the frame erasing exposure of the frame erasing unit according to the above. 12. An inter-paper-frame erasing unit for exposing the space between the originals to erase the inter-paper-frame, and a plurality of originals placed on an original table are sequentially separated and fed onto a platen glass. Document size for detecting the size of a document in a copying apparatus to which a document feeding means for automatically discharging the document placed on the platen glass onto the platen glass can be connected. Based on the detection means and the size of the original detected by the original size detection means and the number of originals sequentially separated and fed onto the platen glass from the original feeding means, the inter-paper frame erasing exposure of the inter-paper frame erasing means A copying machine comprising a control unit for erasing the inter-frame space for controlling. 13. A paper interval detecting means for detecting a paper interval of originals sequentially separated and fed from the original feeding means onto the platen glass, and a paper interval frame erasing control means detects the papers detected by the paper interval detecting means. 13. The copying machine according to claim 12, wherein the copying machine is configured to control the frame erasing exposure of the paper frame erasing means according to the space. 14. The copying apparatus according to claim 13, wherein the frame erasing exposure of the sheet interval erasing unit is limited in accordance with the sheet interval length detected by the sheet interval detecting unit.