JPH03267950A - Copying machine - Google Patents

Abstract

PURPOSE:To execute a copying operation under different conditions even in the case that plural originals are simultaneously conveyed by storing an inputted copying condition corresponding to the plural originals which are simultaneously conveyed on a conveyance path. CONSTITUTION:This machine is provided with the conveyance path 11 on which the original is conveyed and ejected after the original is allowed to pass a specified exposing position, a photosensitive body 3, exposing means 26-29, a developing means 33, a transfer means 34 for transferring a toner image to a paper 35, copying condition input means 57 and 58, plural memory areas 85-89, and a plural conditions individually executing means 81. Namely, the copying conditions corresponding to the originals are individually stored in the plural memory areas 85-89 corresponding to the plural originals which are simultaneously conveyed on the path 11 and individually executed for every original. Thus, the originals are conveyed out on the conveyance path one after another, and the copying operation is performed to each original under the desired copying condition.

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a copying machine for copying sheet-like originals, and particularly to a copying machine that can continuously transport a plurality of originals on one transport path. Regarding copying machines.

``Prior Art'' Many copying machines are equipped with a platen glass on which a document is placed, and the platen glass itself is moved in a predetermined direction or an optical system placed under the platen glass is scanned. The image of the document is slit-exposed onto the photoreceptor.

In this type of copying machine, the original is fixed to the platen glass and exposed, so the size of the original needs to be equal to or smaller than the maximum size of the platen glass. If the original is larger than this, it will be necessary to divide it, copy each part, and paste them together. If such an operation is to be avoided, the platen glass needs to be particularly large, and the optical system also becomes large, resulting in the problem that the copying machine itself becomes large and expensive. Further, even if the platen glass is made larger, it is actually impossible to prepare a platen glass of such size for, for example, an original whose negative side is several meters long.

Therefore, for sheet-like originals such as long drawings with side lengths of several meters, conventionally the original is not fixed on the platen glass, but moved at a constant speed on the platen glass. A type of copying machine is used in which an image is exposed to a slit onto a photoreceptor.

FIG. 16 shows an example of such a copying machine. A document conveyance path 11 shown by a solid line in this copying machine is a conveyance path from when the document is inserted into this apparatus until it is ejected. This document transport path 11 includes a manual feed roll 12.
．． 13, resist roll 14.15, discharge roll 16~
Various rolls such as 18, a platen glass 19, and first to third sensors 21 to 23 are arranged. Of these, the manual feed rolls 12 and 13 are provided at an insertion slot (not shown), and when a first sensor 21 placed in front of the manual feed roll 12 detects the leading edge of the document, the manual feed motor 2
4, the drive is started. When the first sensor 21 detects the leading edge of the document, the document conveyance motor 25 also starts driving, and the registration rolls 14 .
15, and rolls such as discharge rolls 16 to 18 are rotated.

A platen glass 19 is placed in front of the discharge rolls 16 to 18.
are arranged so that the document conveyed on the conveyance path ll passes there at a predetermined speed. An exposure lamp 26 is arranged near the platen glass 19, and is configured to illuminate the reading portion of the document in a band-like manner. The reflected light from the original is reflected by the mirror 27 as shown by the - dotted chain line.
After being reflected, the light passes through an optical system such as an optical lens 28 and another mirror 29, and is exposed to a slit at the exposure position of the photoreceptor drum 31.

A charge corotron 32 is placed at a predetermined position around the photoreceptor drum 31, and by exposing the uniformly charged drum surface to light, an electrostatic latent image corresponding to the image information on the document is formed. will be formed. This electrostatic latent image is developed by a developing device 33, and the resulting toner image is transferred onto a sheet of paper 35 of a predetermined size by a transfer corotron 34. The paper 35 is obtained by cutting a roll paper 39 selectively fed out from one of the first to third three systems of paper feed rolls 36 to 38 using a cutter 41 .

The paper onto which the toner image has been transferred by the transfer corotron 34 is peeled off from the drum surface by the print corotron 43, conveyed by the conveyor belt 44, and then heated and fixed by the fixing device 45. The paper that has been fixed is transferred to the output tray 48 by the action of the transport rolls 46 and 47.
It will be discharged to the top.

Generally, in a copying machine, various copying conditions can be set by operating an operation panel (not shown). Here, the copying conditions refer to various conditions for copying with a copying machine, such as the density of the original, the reduction ratio, the temperature setting of the fixing device, and the like. In the copying machine shown in FIG. 16 as well, such copying conditions are set for the original to be copied, and the original is inserted through the insertion slot.

``Problems to be Solved by the Invention'' In the conventional copying machine described above, copying conditions are set, a document is manually inserted into the insertion slot, and copying is started.

That is, the light amount of the exposure lamp 26 is controlled according to the copying conditions, and an image is recorded on the paper 35 based on the electrostatic latent image formed on the photoreceptor drum 31.

In such a device, the document insertion slot and the platen glass 1
There are many cases where distances up to 9 are far apart. In such a copying machine, if the original is a small size, it is a formal practice to send the next original onto the conveyance path 11 from the insertion slot while the previously inserted original is exposed on the platen glass 19. is possible. However, in reality, it is necessary to continue exposure under the copying conditions while the previously inserted document is on the platen glass 19. Further, even after exposure is completed, if a paper jam occurs before a copy of the original is ejected to the ejection tray 48, the copying operation must be repeated under the new copying conditions.

For this reason, when changing the copying conditions, control is performed such that the sending of the next original is on standby until the copying process for the previous original is completely completed. That is, after the copying process for the previous original is completed, the copying conditions for the next original are set, and the copying process for the next original is started.

Furthermore, even when copying is performed under the same copying conditions, the leading edge of the next document is stopped at the detection position of the second sensor 22 until the exposure of the previous document is completed. This is because a procedure is taken to finally determine the copying conditions for the document at the position of the second sensor 22.

For this reason, this type of copying machine has a problem in that efficient copying operations cannot be performed, especially when copying conditions are changed for each document.

SUMMARY OF THE INVENTION Accordingly, a first object of the present invention is to provide a copying machine that can send original documents one after another onto a conveyance path and perform a copying operation on each document under desired copying conditions.

A second object of the present invention is to provide a copying machine that can set copying conditions for the next original while copying a previous original sent onto a conveyance path.

A third object of the present invention is to make it possible to input new copying conditions for originals that need to be copied again even if a jam occurs while multiple originals are being conveyed simultaneously on the conveyance path. The object of the present invention is to provide a copying machine that can be set up without the need to do so.

A fourth object of the present invention is to make it possible to efficiently adjust the timing of sending out the original to the transport path depending on whether or not the reduction ratio is changed, when a change in the reduction ratio of the original is included in the copying conditions. The objective is to provide a copy machine with

A fifth object of the present invention is to reduce the distance between documents on the conveyance path when using roll paper as paper for copying images and setting a blank area in a part of the paper after cutting. An object of the present invention is to provide a copying machine which can perform efficient copying by setting appropriately according to the situation.

"Means for Solving the Problem" The invention as set forth in claim 1 includes a conveyance path for conveying a document and discharging the document after passing through a predetermined exposure position, and a conveyance path for discharging the document after it has passed through a predetermined exposure position, and for forming an electrostatic latent image. A photoreceptor such as a photoreceptor drum,
An exposure means for exposing an image on a document passing through an exposure position at a constant speed onto a photoreceptor in the form of a slit, a developing means for developing an electrostatic latent image formed on the photoreceptor, and an image obtained by the development of the developing means. a copying condition inputting means for inputting copying conditions as conditions for copying a document, and copying conditions input by the copying condition inputting means are simultaneously conveyed on a conveying path. The copying machine is provided with a plurality of memory areas for storing the plurality of originals corresponding to the plurality of originals, and a copying condition individual execution means for applying the copying conditions stored in the respective memory areas to the corresponding originals.

That is, in the invention described in claim 1, a plurality of memory areas are prepared in correspondence with a plurality of originals conveyed simultaneously on a conveyance path, copying conditions are individually stored in correspondence with the originals, and these are used to store copy conditions individually. In the invention according to claim 2, characterized in that the first object is achieved by individually executing the copying conditions for each original, the original is conveyed and passed through a predetermined exposure position, and then the original is ejected. A conveyance path, a copy condition input means for inputting conditions for copying the original sent to the conveyance path, and an input memory for storing the copy conditions input by the copy condition input means; A copying condition execution memory is provided corresponding to the transported document and stores the copying conditions to be executed, and the copying conditions stored in the input memory are transferred to the corresponding one of the copying condition execution memories. A copying condition transfer means and an input memory input control means for transitioning the input memory to a state in which copying conditions for the next document can be input after the copying conditions are transferred by the copying condition transfer means are provided to the copying machine. be equipped.

In other words, in the invention as claimed in claim 2, two types of memory are provided, an input memory for inputting copy conditions and a memory for copy condition execution, and the copy conditions stored in the input memory are transferred to the copy condition execution memory as necessary. In the invention as set forth in claim 3, the second object is characterized by a conveying path for conveying the document and discharging it after passing through a predetermined exposure position; A photoconductor that forms a latent image, an exposure unit that exposes the photoconductor in the form of a slit with an image on a document that passes through an exposure position at a constant speed, and a developer that develops the electrostatic latent image formed on the photoconductor. a transfer means for transferring a toner image obtained by the development of the developing means onto a sheet of paper; a copying condition inputting means for inputting copying conditions as conditions for copying a document; Multiple memory areas that store the copied copy conditions corresponding to multiple originals conveyed simultaneously on the transport path, and individual copy condition execution that applies the copy conditions stored in each memory area to the corresponding originals. a jam detecting means for detecting a paper jam, and a copying condition for making the corresponding document copying condition the copying condition for the next document fed into the conveying path when the jam detecting device detects a jam. The copying machine is provided with a reset means.

That is, in the invention according to claim 3, a jam detection means is provided for detecting a paper jam, and when a paper jam is detected, the copy condition resetting means sets the copy conditions of the corresponding document to the next conveyance path. In the invention as set forth in claim 4, the third object is characterized by setting the copying condition of the original as a condition for copying the original. A photoreceptor that forms an electrostatic latent image and an image on a document that passes through an exposure position at a constant speed at one of several reduction ratios.
an exposure means that exposes the photoreceptor in a slit-like manner, a developing means that develops the electrostatic latent image formed on the photoreceptor, and a transfer means that transfers the toner image obtained by the development of the developing means onto paper. , a copying condition input means for inputting copying conditions as conditions for copying the original, and storing the copying conditions inputted by the copying condition inputting means in association with a plurality of originals conveyed simultaneously on the conveyance path. a plurality of memory areas, and copy condition individual execution means for applying copy conditions stored in each memory area to a corresponding document;
When the exposure means changes the magnification, there is a determination means for determining whether or not the exposure of the document has been completed at the previous magnification, and when the determination means determines that the exposure has been completed, there is a determination means for determining whether or not the exposure of the document has been completed at the previous magnification. The copying machine is provided with a document feeding timing control means which is one of the conditions for allowing feeding of the original document.

In other words, in the invention according to claim 4, when the exposure means changes the reduction ratio, a determination means is provided for determining whether or not the exposure of the previous document has been completed, and when the reduction ratio is not changed, the next step is performed. A fourth object of the present invention is characterized in that when the original is sent out in a short time and the magnification is changed, the next original is allowed to be sent out onto the conveyance path after the exposure before the change is completed. In the invention described in 5, there is provided a roll paper supply means for feeding out the roll paper as a roll paper, a roll paper cutting means as a cutter for cutting the roll paper fed out from the roll paper supply means, and a roll paper cutting means for cutting the roll paper fed out from the roll paper supply means; Margin length setting means for setting the margin length from the trailing edge of the document recording position to the position cut by the roll paper cutting means; and feeding the document to the conveyance path according to the margin length set by the margin length setting means. The copying machine is provided with a calculation means for calculating the interval between the two documents, and a document sending timing control means for setting the timing for sending out the documents on the conveying path so that the distance calculated by the calculating means becomes the minimum distance between the documents.

That is, in the invention described in claim 5, the margin length setting means is used to set the margin length from the trailing edge of the document recording position on the roll paper to the position cut by the roll paper cutting means, and the set margin is The fifth objective is achieved by calculating the feeding interval of the original according to the length and controlling the feeding of the original.

"Example" Hereinafter, the present invention will be described in detail with reference to Examples.

Overview of Copying Machine FIG. 2 shows the external appearance of a copying machine according to an embodiment of the present invention. The internal structure of this copying machine is fundamentally the same as that shown in FIG. A document table 52 projects horizontally from the front of the copying machine 51 in FIG. 2, and a document is inserted from there along a document insertion guide 53. The inserted original travels through a conveyance path 11 shown in FIG. 16 and is discharged onto an original tray 20 disposed at the upper part of the main body of the apparatus.

An automatic paper feeder 54 is arranged below the document table 52. This automatic paper feeder 54 is provided with three systems of paper feed rolls 36 to 38 as shown in FIG. Of course, depending on the device, more or fewer systems of paper feed rolls may be arranged. 3
A paper 39 (see FIG. 16) fed out from one of the paper feed rolls 36 to 38 of the system is cut by a cutter 41 as shown in FIG. It is discharged onto the tray 48.

As shown in FIG. 2, the ejection tray 48 is actually placed above the document tray 20 so as to partially overlap it. The automatic paper feeder 54 can be pulled out for convenience when removing jammed paper 39 or the like. Furthermore, a manual paper table 55 is arranged between the automatic paper feeder 54 and the document table 52.

This is so that sheets of special sizes that are not set in this copying machine 51 can be manually fed from here.

A main control panel 57 and a sub-control panel 58 are arranged on the back side of the document table 52.

The main control panel 57 is provided with buttons and display lamps necessary for operating various functions. On the sub-control panel 58, knobs such as "toner increase", "density adjustment (light amount)", "magnification adjustment", and "toner adjustment j" are arranged. This allows editing (trimming).

Overview of Control Panel FIG. 3 shows the main parts of the main control panel of this copying machine. Main control panel 5
7, a liquid crystal display 61 is arranged. The liquid crystal display 61 displays a status display of the copying machine such as "Ready to copy" and necessary measures such as actions to be taken in the event of a jam. A numeric keypad 62, a clear key 63, and a set key 64 are arranged below the liquid crystal display 61. Further, on the right side of the liquid crystal display 61, a document stop button 65 for stopping document feeding and an all clear button 66 for returning the selection of the main control panel 57 to the basic state are arranged.

Further on the right side of the main control panel 57, several selection keys for setting copy conditions are arranged. Of these, the paper feed roll key 71 is
This key is used to select which of the three paper feed rolls 36 to 38 shown in FIG. Each time the paper feed roll key 71 is pressed once, the paper feed rolls 36 to 38 of each of the first to third systems are cyclically selected one by one. The lamp lights up at the selected location. The same applies to other selection keys.

The copy density key 72 is a key for adjusting the copy density by changing the bias of the developing device 33 (FIG. 16). The reduction ratio keys 73 and 74 consist of two keys, an enlargement direction key and a reduction direction key, and allow selection of five levels of reduction ratio. However, depending on the device, it may be possible not only to select such a fixed magnification but also to set an arbitrary magnification in increments of 1%, for example. The light amount key 75 is a key for setting the light amount according to the condition of the document. Here, the light intensity is 5
It can be set in stages.

The paper cut key 76 is a key for setting the manner in which paper is cut. In the copying machine 51 of this embodiment, one can be selected from synchronized cuts, margin cuts, and cut length instructions. Here, the synchronizing force/gutter refers to the cutting mode in which the paper is cut according to the size of the document. Margin cutting refers to a mode in which a margin other than the image information of the document is set at the leading or trailing edge of the paper. The cut length instruction refers to a manner in which sheets are counted according to a preset length. If the image information of the original is recorded in an area shorter than this length, a margin will appear after the image information, but the difference from margin cut is that the length of the margin is specified or the length of the paper is The difference lies in whether or not it is specified. The fixed size cut key 77 is used when selecting any fixed size cut.

Circuit Configuration of Copying Machine FIG. 1 shows the main part of the circuit configuration of this copying machine.

This copying machine 51 is equipped with a CPU (central processing unit) 81 for performing various controls. The CPU 81 is connected to the following units via a bus 82 such as a data bus. Note that illustrations and explanations of components connected via the I10 boat (input/output boat) will be omitted.

(1) ROM 83: This is a read-only memory that stores programs for controlling each part of this copying machine.

(2) Working memory 84: Consisting of RAM (random access memory), this memory temporarily stores various data for the work of the CPU.

(3) First to fifth memories 85 to 89: transport path 11 (
This is a memory provided for managing documents sent out in FIG. 16). RAM same as working memory 84
It may be configured above.

For details of these memories 85 to 89, see the following 4th section.
This will be explained in the following figures.

(4) First to third sensors 21 to 23: These are sensors arranged on the conveyance path 11 for detecting a document.

This copying machine is provided with several other sensors for detecting paper and the like. Among these sensors, the sensor placed in the paper path is monitored by the CPU 81 in relation to the normal running timing of the paper, and jam detection is performed based on this. ing. A sensor is also placed near the developing device 33, and when this sensor detects paper, it is assumed that the paper is wrapped around the photosensitive drum 31, and a jam is detected in the same way. ing. Since these sensors are generally provided in copying machines, their illustrations are omitted to avoid complexity.

(5) Manual feed motor drive circuit 91: Manual feed motor 2
This is a motor for controlling the drive of 4.

(6) Original transport motor drive circuit 92: This is a motor for controlling the drive of the original transport motor 25.

(7) Magnification motor drive circuit 93: This is a circuit that drives the magnification motor 94 used to move optical components such as the optical lens 28 and set the magnification.

(8) Main motor drive circuit 95: This is a circuit that drives the main motor 96 for operating parts such as the photoreceptor drum 31. Although other motors are used in the developing device 33 and the like in this copying machine, illustration of these motors is omitted since they are not directly related to the present invention.

(9) Temperature control circuit 97: This is a circuit that controls the fixing temperature of the fixing device 45.

(10) Main control panel 57 and sub-control panel 58: The main control panel 57 was briefly explained in FIG.

The sub-control panel 58 is a panel used to make adjustments such as making fine adjustments to the reduction ratio and setting the development potential to improve the reproducibility of colored originals.

(11) Exposure lamp control circuit 101: exposure lamp 260
This is a circuit that controls lighting and its brightness.

(12) High-voltage power supply control circuit 102: This is a circuit that applies a high voltage to a corotron such as the charge flotron 32 and a developing electrode.

(13) Cutter drive circuit 103: This is a circuit that drives the cutter 41.

(14) Clutch control circuit 104: This is a circuit that controls the excitation of various clutches (not shown) for turning on and off the power transmitted from the drive source such as the main motor 9G.

(15) Lenoid control circuit 105: This is a circuit that controls the excitation of a solenoid (not shown) used to control the contact and separation of a predetermined roll.

Details of the first to fifth memories Next, the first to fifth memories 85 to 89 will be explained in detail.

FIG. 4 shows the relationship between the first to third memories. The first memory 85 corresponds to the input memory described in claim 2. That is, the first memory 85 temporarily stores the copying conditions input from the main control panel 57 and the sub-control panel 58. Here, to simplify the explanation (
i>Paper feed roll, (ii) Copy density, (iii)
The copying conditions are a combination of seven items: exposure lamp light intensity, (iv) paper cut, (v) magnification, and (vl) fixing temperature.

Here, regarding the item (]) paper feed roll, the first to third paper feed rolls 36 to 38 are selected according to the document and the reduction ratio.
Select the desired roll from among them using the paper feed roll key 71. The same applies to (iii) iX light lamp light intensity, (iv) paper cut, and (v) magnification. (vi) The fixing temperature is adjusted depending on whether the paper used is tracing paper, etc., but this is adjusted by the sub control panel 58.
Set by.

The second memory 86 corresponds to the copy condition execution memory described in claim 2. In this embodiment, the second memory 86 is divided into four memory areas M, -M. This is based on the fact that the maximum number of documents that can be simultaneously conveyed through the conveyance path 11 in the copying machine 51 of this embodiment is "4." That is, each memory area M1~
M4 is provided corresponding to the documents that are simultaneously conveyed on the conveyance path 11, and when the documents are inserted into the conveyance path 11 one after another, these memory areas M, ~M4 become ring-shaped memory areas. They will be allocated one after another as if they were composing a . Therefore, if the conveyance path 11 is longer than the copying machine 51 of this embodiment, or if it is assumed that documents of smaller size will be continuously fed onto the conveyance path 11, it is necessary to prepare a larger memory area. Bye.

The third memory 87 is a memory that manages four memory areas M, to M4 in the second memory 86. Here, the first memory area DL stores the copy conditions stored in the first memory 85 in four memory areas? Stores an area number indicating to which of vL-M- the data is to be transferred.

The initial value of this area number is "0", and at this time, the first memory area M is designated. Then, each time the document is sent out to the conveyance path 11, "1" is added.

The second memory area DE stores the area number from which the original is ejected. The initial value of this area number is “0”
, and "1" is added each time a document is ejected from the ejection rolls 16 to 18.

That is, when the two pieces of information in both memory areas DL and DE are both "0", the document has not been sent onto the conveyance path 11, and from now on, as the copying process progresses, the area number indicating the transfer position will be sent first. The number will be increased, and the area number that indicated the discharge will follow suit.

FIG. 5 shows the relationship between the fourth memory and the fifth memory. The fourth memory 88 is the third memory 87
It is provided with four memory areas M1 to M4 corresponding to (FIG. 4). Data regarding four timers T, -T4 is stored in each of the memory areas M1 to M, corresponding to the original document. Here, for example, timer T1 is a timer that determines paper feeding timing, and timer T1 is a timer that determines paper feeding timing.
2 is a timer that determines the timing for switching the copy density. The CPU 81 shown in FIG. 1 reserves the memory area indicated by the third memory 87 in the fourth memory 88 at the time when the document is detected by the second sensor 22 on the conveyance path 11. Based on the information stored in this memory area, the copying machine 51 is controlled while referring to the corresponding memory area in the second memory 86.

The fifth memory 89 is a memory for controlling each sheet of paper at the start of sheet feeding. The fifth memory includes a plurality of memory areas P1 to PIG to individually control each sheet of paper being transported, and stores the numerical values of the corresponding memory areas in the second memory 86. If a failure such as a jam occurs, the copying conditions at this time are reset from the second memory 86 to the first memory 85 so that the original copying operation can be continued under these copying conditions. There is. Note that in the memory area "PH" in the fifth memory 89, a numerical value indicating the next memory area to be stored is written. Further, in another memory area "PE", a numerical value indicating the memory area corresponding to the oldest sheet of paper currently being transported is written.

Operation of the copying machine FIG. 6 shows the control for inserting a document. 1st
The CPU 81 shown in the figure checks whether or not the copying machine 51 is in an operable state (step 2 in FIG. 6). If the fixing device 45 of the copying machine 51 has risen to a predetermined temperature and no other trouble occurs during copying (Y),
The CPU 81 checks whether the first and second sensors 21, 22 are both turned off (step 2). In such a case, the trailing edge of the document inserted from the document table 52 is connected to the first and second sensors 21 .
22, the document is not completely inserted into the conveyance path 11.

Now, the trailing edge of the first document is connected to the first and second sensors 21.
．． 22. In this case, if the manual feed motor 24 was being driven, it is stopped, the document insertion permission flag is turned ON, and the next document (second document) is carried onto the transport path 11. Make it possible (step ■). First and second sensor 21
．． If both or one of the devices 22 is detecting the document, the process directly proceeds to the next step (2).

In step (2), it is checked whether the first sensor 21 is turned on. When the second document is inserted from the document table 52, the first sensor 21 is turned on (
Step ■;Y). At this point, the CPU 81 refers to the working memory 84 and checks whether the document insertion flag is turned on (step 2). If it is on (Y), the second document is being inserted, so the flag that allows the insertion of the next document is turned off, the manual feed motor 24 is turned on, and the mode is set. Turn on the unchangeable flag (step ■). That is, the manual feed motor 24 is rotated to feed the inserted second original along the conveyance path 11, and since the insertion of the second original has started, changing the copying conditions for this is prohibited.

In this state, the CPU 81 monitors the point in time when the leading edge of the second document is detected by the second sensor 22 (step (2)). When the leading edge of the second document reaches the position of the second sensor 22 (Y), the CPU checks whether the start ready flag for this second document is on (step ■). . If the start flag is not on (N), it is necessary to stop this second document in this state. Therefore, in this case, the drive of the manual feed motor 24 is stopped (step 2), the process returns to step 2 (return), and the process waits until the start flag is turned on.

On the other hand, if the start flag is turned on in step ■, the start flag for this second document is turned off, and if the drive of the manual feed motor 24 is stopped, this is turned off. Start (step @)
. After this point, this second document will be sent onto the conveyance path 11, so the copying conditions for this document are determined. Therefore, the contents of the first memory 85 shown in FIG. 4 are first stored in a predetermined memory area of the second memory 86 (step 0). The storage area is designated according to the contents of the first memory area DL of the third memory 87, as described above.

Next, the CPU 81 stores four timers T1 to T4 in the memory area indicated by the third memory 87 in the fourth memory 88.
Set. When data has been written to the second and fourth memories 84 and 86 for the second document in this way, the CPU 81 adds "1" to the contents of the third memory 87 and writes the next memory area. Make it possible to give instructions (Step 0). After completing the writing preparation for the third manuscript in this way, proceed to step ■
Release the off state of the mode change not allowed flag that was done in , and enable setting of copy conditions for the third original (
step 0).

The insertion control of the second original has been explained above.
Generally, the same applies to the Nth control.

7 to 9 show the states of the first to fourth memories in the document insertion control described above.

Of these, FIG. 7 shows a state in which the copying conditions for the first original have been written in the second and fourth memories. Each copying condition stored in the first memory 85 is stored in the first memory area M of the second memory 86 at the time when the leading edge of the first document reaches the second sensor 22, Subsequently, four timers T I"" T 4 are set in the first memory area M1 of the fourth memory 88. After this, the contents of the third memory 87 are updated, so the area number written in the first memory area DL becomes "2" as shown in FIG. 7, and the next copy condition is the second one. It is shown that the data is written to the memory area M2. In this FIG. 7, in the second memory area DE,
A numerical value "1" is written as an area number related to document discharge, indicating that the first document has been discharged.

In this FIG. 7, "roll 1" indicates that the first paper feed roll 36 has been selected, "temperature 3" indicates that the third temperature level has been selected, and "light intensity" indicates that the third stage temperature has been selected. 2'' indicates that the second level of light intensity has been selected. Furthermore, "synchro cut" indicates that synchro cut has been selected as the paper cutting mode. The reduction ratio and fixing temperature are as shown in the figure.

FIG. 8 shows a state in which the copying conditions for the second document have been input in the state shown in FIG. 7 and have been written into the second and fourth memories. The copying conditions input to the first memory 85 are stored in the second memory area M2 of the second memory 86 when the leading edge of the second document reaches the second sensor 22, and Four timers T and -T are also set in the second memory area M2 of the memory 88. At this point, the area number written in the first memory area DL of the third memory 87 is counted up by 1 and becomes 3''.
The area number of the memory area DE remains at "1" because only one document has been ejected at this point.

FIG. 9 shows the state of each memory at a time point that has slightly elapsed from the state shown in FIG. The contents of third memory 87 and fourth memory 88 have been changed.

FIGS. 10 and 11 show changes in the state of the fifth memory. Of these, FIG. 10 shows that the number "1" representing the memory area of the first document is written in the first memory area P1 of the fifth memory 89, indicating that this corresponds to the first paper. 11th
In the figure, a new value "2" representing the memory area of the second document is written in the second memory area P2 designated by the memory area "PH" shown in FIG.

Check at the start of original In this copying machine 51, as understood from the above explanation, each original on the transport path 11 is managed with its own copy magnification, so that the previous original is completely ejected from the copying machine. There is no need to wait until the next document is sent out. That is, the documents can be sent out onto the conveyance path 11 one after another at the minimum interval allowed by the relationship between the documents and the paper. however,(
i) If the reduction ratio is different between the previous manuscript and the next manuscript,
It is necessary to move the optical system by the reduction ratio motor 94 (Fig. 1) between the exposure of the previous original and the exposure of the next original, so that the next original is exposed until the reduction ratio is changed. Can not do it. Furthermore, (11) Even if the reduction ratio is not changed, if a margin length is set for the paper, it is necessary to change the timing of sending out the document according to this margin length.

Therefore, in this copying machine 51, when the leading edge of the document is detected by the second sensor 22, it is checked whether or not the document should be started immediately.

FIG. 12 shows the flow of checking at the start of a document. The cpug1 (Fig. 1) stores the reduction ratio written in the first memory 85 for the document to be sent out and the corresponding memory area in the second memory 86 for the previous document sent out. It is determined whether the magnification ratios shown are the same (Step 2 in FIG. 12). If both reduction ratios are the same (Y), it is checked whether the interval setting timer has timed up (step 2).

The time set in the interval setting timer will be explained next.

If the interval setting timer has timed up (Y), turn on the document start flag explained in Figure 6 (
Step ■). Then, the contents of the interval setting timer are cleared. Although not shown in this flowchart, the rotational speed of the document transport motor 25 is set to a speed corresponding to the reduction ratio set for this document, and the document is started to be conveyed.

On the other hand, if it is determined in step 2 that the reduction ratios are different (N), it is determined whether the exposure of the document immediately preceding the document to be sent out is completed (step 2). ). The feeding of the original is in a standby state until the exposure is completed (step ■; N, return). When the exposure is completed, the process proceeds to step (2), and control is performed to start the document when the interval setting timer times out.

FIG. 13 shows the setting of the timer value of the interval setting timer,
This shows the flow up to the start. When the leading edge of the document detects the second sensor 22, cpug i stores the contents of the previous memory area corresponding to the area number written in the first memory area DL of the third memory 87 in the second memory 86. investigate. Then, it is checked whether the paper cutting method in this memory area is a synchro cut (Step 13 in Figure 13). If it is a synchro cut (Y), the cutter 41 is cut at the position where the image information of the original ends. 16)), the paper 39 is cut. Therefore, the minimum paper spacing value determined by the document's reduction ratio, etc. is set in the spacing setting timer (step ■), and as soon as the trailing edge of the document turns off the second sensor 22 (step ■; Y), this This will start the timing operation of the interval setting timer (step ■).

On the other hand, when the paper 39 is cut by a method other than synchronized cutting, a predetermined paper interval value t is set in the interval setting timer (
Step ■). This paper interval value t is expressed by the following equation.

When the -minimum paper interval value + paper interval value t is set in the interval setting timer, the process proceeds to step (2) and the time counting operation of the interval setting timer is started.

That is, in the copying machine 51 of this embodiment, several modes of cutting the paper can be selected as shown in FIG. The paper interval value t is set in the interval setting timer by adding the time obtained by subtracting the length at which information is recorded divided by the paper speed to the time as the minimum paper interval value.
It is said that

Paper Travel Control FIG. 14 shows control of paper feeding timing. The CPU 81 controls the timer of the fourth memory 88 between the area number written in the second memory area DE of the third memory 87 and the area immediately before the area number written in the first memory area DL. The area number whose timer T is timed up is written in the paper feed flag (step ■ in FIG. 14), and the timer T of this fourth memory 88 is cleared to zero (step ■).
.

FIG. 15 shows the processing of the paper feed flag in which the area number has been written in this manner. CPU81
checks whether the paper feed flag is zero, and if it is not zero (step ■; Y in Figure 15), the fifth memory 8
The value of the paper feed flag is written in the area number written in the memory area PH at step 9 (step 2). That is, each time paper is fed, the value of the paper feed flag is sequentially stored in the memory areas P to PIO of the fifth memory 89 to which the value corresponds. Then, the paper feed of the roll paper displayed in the paper feed roll area indicated as "ROLL" (see FIGS. 7 to 9) in the second memory 86 corresponding to the area number indicated by the paper feed flag is determined. Let it start. After this, the paper feed flag is cleared (step ■)
.

In this way, each paper being transported is managed by the fifth memory, so if a jam occurs during transport, the copying conditions for the document corresponding to this paper are automatically set.

"Effects of the Invention" As explained above, according to the invention described in claim 1, there is provided a copying condition input means for inputting copying conditions as conditions for copying a manuscript, and a copying condition input means input by the copying condition inputting means. A plurality of memory areas for storing conditions corresponding to a plurality of originals conveyed simultaneously on a conveyance path, and copying condition individual execution means for applying the copying conditions stored in each memory area to the corresponding originals. Since it is provided in the copying machine, even if a plurality of originals are conveyed on the conveyance path at the same time, different copying conditions can be set for each of them. Therefore, there is no need to wait until the copying process for one document is completed before sending out the next document, and many documents can be processed in a short period of time, making office work more efficient.

According to the invention as set forth in claim 2, there is provided a copying condition input means for inputting conditions for copying the original sent into the conveyance path, and an input memory for storing the copying conditions inputted by the copying condition input means. , a copying condition execution memory that is provided corresponding to the originals that are simultaneously conveyed on the conveyance path and stores the copying conditions to be executed respectively, and a copying condition execution memory that stores the copying conditions stored in the input memory. Since the copying machine is equipped with a copying condition transfer means that transfers the copying conditions to the document sent out previously, the copying conditions for the next document to be sent out can be entered regardless of the condition of the previously sent out document. Be more efficient. In addition, since the input memory and the copy condition execution memory are configured as separate memories or memory areas, the determined copy conditions are input to the copy condition execution memory, simplifying the control of copy operations. It has the advantage of becoming

According to the third aspect of the present invention, there is provided a jam detecting means for detecting a paper jam, and when the jam detecting means detects a jam, the copying conditions of the document corresponding to the jam detecting means are set to the document to be sent next to the conveyance path. The copying machine is equipped with means for resetting copying conditions, so even if a jam occurs, if a corresponding original is set in the copying machine, copies with the same conditions can be made without the need to reset the copying conditions. be able to.

According to the invention as set forth in claim 4, when the exposure means changes the magnification, there is provided a determining means for determining whether or not the exposure of the document has been completed at the previous magnification; The copying machine is equipped with an original document feed timing control means that sets the time when it is determined as one of the conditions for allowing the next document to be fed onto the conveyance path, so that when the copying conditions are changed due to a change in the reduction ratio, It is also possible to set the correct timing for sending out the original.

According to the invention set forth in claim 5, there is provided a margin length setting means for setting a margin length from the trailing edge of the document recording position on the roll paper to a position cut by the roll paper cutting means; a calculation means for calculating an interval at which documents are fed out onto a conveyance path according to a margin length determined by the calculation means; and a document for setting a timing for sending out documents on the conveyance path so that the interval calculated by the calculation means becomes a minimum interval between documents. Since the copying machine is equipped with a feeding timing control means, the feeding interval of the original can be controlled both when cutting the roll paper in synchronization with the size of the image information of the original and when cutting with a predetermined margin. can be set to the minimum width to achieve efficient copying work.

[Brief explanation of drawings]

1 to 13 are for explaining a copying machine according to an embodiment of the present invention, of which FIG. 1 is a block diagram showing the main part of the circuit configuration of the copying machine, and FIG. Fig. 3 is a plan view showing the main parts of the main control panel, Fig. 4 is an explanatory diagram showing the relationship between the first to third memories, and Fig. 5 is a diagram showing the relationship between the fourth memory and the main control panel. An explanatory diagram showing the relationship between the fifth memory, FIG. 6 is a flowchart showing document insertion control, and FIG. 7 shows a state in which the copy conditions for the first document are written in the second and fourth memories. FIG. 8 is an explanatory diagram of each memory showing the state shown in FIG. 7, where the copying conditions for the second document have been input and this has been written to the second and fourth memories. FIG. 9 is an explanatory diagram showing the state of each memory at a time slightly elapsed from the state shown in FIG. 8, and FIGS. An explanatory diagram showing an example, FIG. 12 is a flowchart showing the flow of checking at the start of a document, FIG. 13 is a flowchart showing the flow from setting the timer value of the interval setting timer to starting the timing operation, FIG. 14 is a flow chart showing paper feed timing processing, FIG. 15 is a flow chart showing paper feed control, and FIG. 16 is a schematic configuration diagram showing main parts of the copying machine of this embodiment and a similar conventional copying machine. It is. 11... Conveyance path, 12... Manual feed roll, 19... Platen glass, 20...
・Document tray, 21...First sensor, 22・
...Second sensor, 23...Third sensor, 24...Manual feeding motor, 25...Document transport motor, 31... ...Photoreceptor drum, 32...Charge corotron, 33...
・Developing device, 34...Transfer corotron, 36...
...First paper feed roll, 37...Second paper feed roll, 38...Third paper feed roll, 41...
Cutter, 51... Copy machine, 52... Original table, 57... Main control panel, 5
8...Sub control panel, 71...
... Paper feed roll key 72 ... Copy density key 73.74 ... Reduction ratio key 75 ... Light intensity key, 76 ... Paper cut key 77 ... ...Size cut key 81...
...CPU, 83...ROM, 84...
- Working memory, 85... first memory, 86...
...Second memory, 87...Third memory,
88...4th memory, 89...5th memory
memory, 94...Motor for reduction ratio.

Claims (1)

[Scope of Claims] 1. A conveyance path through which a document is conveyed and discharged after passing through a predetermined exposure position; a photoreceptor on which an electrostatic latent image is formed; an exposure means for exposing the photoreceptor in the form of a slit with an image on a document passing at a constant speed; a developing means for developing the electrostatic latent image formed on the photoreceptor; a copying condition inputting means for inputting copying conditions as conditions for copying a document; and a copying condition inputting means for simultaneously conveying the copying conditions inputted by the copying condition inputting means on the conveyance path. The apparatus is characterized by comprising a plurality of memory areas for storing the plurality of originals corresponding to the plurality of originals, and a copying condition individual execution means for applying the copying conditions stored in the respective memory areas to the corresponding originals. Copy machine. 2. A conveyance path through which the original is ejected after it has been conveyed and passed through a predetermined exposure position, and a copying condition input means for inputting conditions for copying the original sent into the conveyance path. , an input memory for storing the copying conditions inputted by the copying condition input means; and a copying condition execution memory provided corresponding to the originals conveyed simultaneously on the conveying path and storing the copying conditions to be executed respectively. , a copying condition transfer means for transferring the copying conditions stored in the input memory to a corresponding one of the copying condition execution memories; and after the copying conditions are transferred by the copying condition transferring means, the 1. A copying machine comprising: input memory input control means for transitioning the input memory to a state in which copying conditions for the next document can be input. 3. A conveying path for conveying a document and discharging it after passing through a predetermined exposure position; a photoreceptor for forming an electrostatic latent image; and a document passing through the exposure position at a constant speed. an exposure means for exposing the above image to the photoreceptor in a slit shape; a developing means for developing the electrostatic latent image formed on the photoreceptor; and a toner image obtained by the development of the developing means on a sheet of paper. a copying condition inputting means for inputting copying conditions as conditions for copying a document; and a copying condition inputting device for inputting copying conditions inputted by the copying condition inputting means to a plurality of documents simultaneously conveyed on the conveyance path. a plurality of memory areas that are stored in correspondence; a copying condition individual execution unit that applies the copying conditions stored in each memory area to a corresponding document; and a jam detection unit that detects a paper jam in the paper; A copying machine characterized by comprising: a copying condition resetting means for setting the copying condition of the corresponding document as the copying condition of the next document fed into the conveyance path when the jam detecting means detects a jam. . 4. A conveyance path for conveying the document and discharging it after passing through a predetermined exposure position; a photoreceptor for forming an electrostatic latent image; and a document passing through the exposure position at a constant speed. an exposure means for exposing the above image onto the photoreceptor in a slit shape at one of several reduction ratios; a developing means for developing the electrostatic latent image formed on the photoreceptor; and this developing means. a copying condition inputting means for inputting copying conditions as conditions for copying the original; and a copying condition inputting means for inputting the copying conditions input by the copying condition inputting means. a plurality of memory areas that are stored in correspondence with a plurality of originals that are conveyed simultaneously on a conveyance path; a copying condition individual execution unit that applies the copying conditions stored in each memory area to the corresponding original; and the exposure. When the means changes the magnification ratio, it includes a determining means for determining whether or not the exposure of the document has been completed at the previous magnification ratio; 1. A copying machine, comprising: a document feeding timing control means for controlling one of the conditions for permitting feeding of a document. 5. A roll paper supply means for feeding out a roll of paper as a roll of paper; a roll paper cutting means for cutting the roll of paper fed out from the roll paper supply means; and after the document recording position on the roll paper. a margin length setting means for setting a margin length from the edge to a position cut by the roll paper cutting means; and calculating an interval for sending out the document to the conveyance path according to the margin length set by the margin length setting means. 1. A copying machine comprising: a calculating means for calculating the distance between the originals; and a document sending-out timing control means for setting the timing for sending out the originals on the conveyance path so that the interval calculated by the calculating means becomes the minimum interval between the originals.