JPH0527398Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention is a method for inserting paper of a different quality (for example, color paper), which is different from ordinary copy paper, into a predetermined position of a plurality of copy papers that are ejected outside the machine after copying. This invention relates to a control device for paper work.

Prior Art Conventional interleaving paper control selects a specific paper feed tray by identifying the type of inserter paper, and feeds the interleaving paper from there. There is no way to check whether the paper being printed is a foreign paper or not.

Problem that the invention aims to solve Therefore, if regular paper is mixed in the paper feed tray selected for interleaving paper, or if regular paper is accidentally added when replenishing foreign paper, Ordinary paper is used for paper, and the classification of paper types by paper work is not clear, making it impossible to achieve the purpose of paper.

Especially when it is possible to make copies on foreign paper for interleaf paper, images that should be copied on foreign paper may be mistakenly copied onto regular paper, then copied onto regular paper, and then these images are ejected. Since the sheets are stacked one after another on the tray, the sorting becomes even more unclear than if the interleaving sheets are left blank, and it becomes extremely difficult to find the position of the interleaving sheets later.

Furthermore, if an image is accidentally copied onto regular paper, it becomes a tedious task to copy the same image later onto a different type of interleaf paper.

The present invention was devised in view of these points, and its purpose is to determine at an early stage whether the paper to be fed is foreign paper or regular paper, and to prevent the required paper from being fed. Another object of the present invention is to provide an automatic interleaving sheet control device that can stop the operation of a copying machine before copying.

Means and Effects for Solving the Problems In order to achieve the above-mentioned object, the present invention has been developed so that the interleaved sheets can be inserted by commands from the inserter paper which separates and places the original along with the original on the original placing section of the copying machine. Copying is performed by selecting an interleaving paper format that copies onto a different type of paper as an interleaf paper, and an interleaf paper format that does not copy onto a different type of paper as an interleaf paper, and copies the above paper according to the selected interleaf format in the copied copy paper. An automatic interleaving sheet control device that inserts foreign paper to separate copied sheets, and supplies multiple paper feed trays and the foreign paper contained in any of the paper feed trays to the copying section of a copying machine. a sensor for determining foreign paper in each paper feed tray, a form of interleaf copying is selected by the inserter paper, and it is determined by the sensor that the paper selected as the interleave paper is not a foreign paper. case,
The automatic interleaf sheet control device is provided with a control means for stopping copying by the copying machine.

When the inserter paper format is selected according to the inserter paper command and regular paper is fed as the inserter paper,
The sensor determines whether the selected paper is an abnormal paper or not, and if it is not an abnormal paper, copying is stopped. Therefore, copying continues without interleaving the abnormal paper, and the sorting process is interrupted. It is possible to avoid a situation where the purpose cannot be achieved, and there is no need for troublesome post-processing to make the paper in the correct state later.

Embodiment An embodiment of the present invention illustrated in FIG. 1 and subsequent figures will be described below.

FIG. 1 shows a dry electrophotographic copying machine 1 according to this embodiment.
and an internal schematic diagram of ADF2.

A platen glass 3 is provided on the top surface of the copying machine 1, and a document 4 is placed above the platen glass 3 for copying.

An optical system consisting of an exposure lamp 5, a plurality of mirrors 6, a lens 7, etc. is located below the platen glass 3, and a drum-shaped photoreceptor 8 is rotatably supported below it.

The exposure lamp 5 is configured to scan the original 4 from side to side while irradiating the original 4 in a slit shape through the platen glass 3.

Around the drum-shaped photoreceptor 8, a charger 9, a developer 10,
A transfer device 11, a cleaning device 12, etc. are arranged. First, a charging device 9 uniformly charges the surface of the photoreceptor 8, an electrostatic latent image is formed by the optical system, and then a developing device 10 forms an electrostatic latent image. The toner image thus formed on the surface of the photoreceptor is transferred to paper by the transfer device 11, and the toner remaining on the surface of the photoreceptor is scraped off by the cleaning device 12, and then transferred to the charger 9 again. Charging is done by .

Further, the paper that has undergone the transfer is fixed by the fixing device 13 and is discharged outside the machine.

An ADF 2 is attached to the top surface of such a copying machine 1.

Above the platen glass 3 is the platen glass 3.
The platen belt 14 that conveys the upper document 4 is stretched around a pair of pulleys 15, and a paper feed section is located adjacent to the right side of the belt, so that when a stack of documents is set, the bottom document is A portion of the platen belt 14 is in contact with the paper feed roll 16, and the platen belt 14 is partially touched by the paper feed roll 16.
The original is fed to the side.

Further, sheets to be copied are stored in a plurality of paper feed trays 20, 21, 2 provided below the drum-shaped photoreceptor 8.
In this embodiment, color paper 23 is stored in the uppermost paper feed tray 20 of these trays, and two types of blank paper of different sizes are stored in the other trays 21 and 22.

The sheets stacked on each tray are sequentially fed to the transfer section by paper feed rolls 26, 27, and 28, starting from the top layer.

Reflective photo sensors 40, 41, and 42 are installed at positions where the leading edge of the paper fed from each tray is slightly pulled out from the tray, and these sensors detect the feeding status of the paper and detect the paper being fed. The amount of light reflected from paper can be detected.

The color of the paper can be identified by the amount of reflected light, and normal paper for copying and foreign paper for interleaf paper can be easily distinguished.

FIG. 2 is a plan view with the ADF 2 removed.

On the front side of the platen glass 3 is a control panel 17 on which various switches such as a start button 18 and displays are arranged.

Four photo sensors S ₁ , S ₂ , S ₃ , S ₄ are arranged at predetermined positions on the right side of the platen glass 3, and the ADF
The size of the document fed from the second paper feeding unit is detected.

Photo sensors S ₂ arranged in a row in the front and rear direction,
The length of the document in the width direction is detected by S ₃ and S ₄ , and the length in the traveling direction is detected by the detection time of another photo sensor S ₁ .

Using this photo sensor for detecting the document size, the inserter paper 19 for interleaf paper is discriminated and its type is identified.

An example of the inserter paper 19 is shown in FIG.

The inserter paper 19 has one to three small holes (20 x 15 mm) arranged in a predetermined position, and when the inserter paper 19 is fed onto the platen glass 3, the photo sensor _S2 The presence or absence of holes and the number of holes are detected.

Next, the interleaf control in this embodiment will be explained with reference to a control system block diagram (FIG. 4) and a flowchart (FIG. 5) showing its operating procedure.

The central part of the control system is the CPU 30, and the RAM is controlled as appropriate according to the program written in the ROM 31.
It operates while using 32.

The CPU 30 includes the start button 18, a photo sensor 40 for detecting paper to be copied,
41, 42 and a photo sensor that detects the original
Signals from S ₁ , S ₂ , S ₃ , S _{4 ,} etc. are inputted via the input interface 33 , and the signals are inputted to the document feed roll 1 .
6, platen belt 14 and paper feed roll 2
Each motor 35, 36, which drives 6, 27, 28,
A control signal is output to 37, 38, and 39 via the output interface 34.

The operation procedure performed in the above control system is explained in the fifth section.
This will be explained based on the flowcharts shown in FIGS.

In FIG. 5, a stack of originals is first set in the ADF 2 (step), and when the start button 18 is pressed (step), the original paper feed roll 16 is driven to feed one original (step).

During paper feeding, photo sensor S ₂ detects the presence or absence of holes in the document and the number of holes, and at the same time, photo sensors S ₃ and S ₄ detect the length of the document in the direction perpendicular to the direction of travel ( step).

Then, it is temporarily stopped (step) at the in-gate located before being taken over by the platen belt 14, and the timing is determined.

Here, based on the signal from the photo sensor _S2 , it is determined whether or not the fed original is inserter paper with three holes (step). If it is a normal original, not inserter paper, the process proceeds to step, where the original is re-fed by the paper feed roll 16 (step), and the length of the original in the traveling direction is detected by the photo sensor S ₁ while the original is being transported. Then, the original size is detected (step), and thereafter the original is set on the platen glass 3 and normal copying steps are performed.

If the fed document is inserter paper, the number of holes formed in the inserter paper is determined in step, and the routine is divided into the following three routines depending on the number.

First, FIG. 6 shows a case where the inserter paper has three holes. The 3-hole inserter paper is set at the beginning of a series of originals, and is determined in the above step to set the inserter mode. From then on, when 1-hole or 2-hole inserter paper is fed, the inserter mode described later is used. Processing is performed as a mode.

The operation when 3-hole inserter paper is fed is shown in Figure 6, and there are three routes, namely ADF.
divided into a route showing the drive of the paper feed roll 16, a route showing the drive of the platen belt 14, and a route showing the drive of the paper feed rolls 26, 27, 28,
It will be explained as if they proceed at the same time.

Note that this also applies to the case where the operation of one-hole and two-hole inserter sheets is explained based on FIGS. 7 and 8, which will be described later.

First, the inserter paper stopped at the step is fed again (step), and after feeding, the next original is fed (step), and stopped at the in-gate (step).

The fed inserter paper is set on the platen glass 3 by the platen belt 14 (step), but is ejected without being exposed to light (step).

During this time, paper is fed by the copy paper feed roll 27 or 28 (step).

Then, the document that had stopped at the step is fed again by the paper feed roll 16 (step).
During paper feeding, the size of the original is detected in the same manner as described above (step), and then the original is transferred to the platen belt 14, set on the platen glass 3 (step), and subjected to exposure.

Then, the image is transferred to the paper supplied in the step (step).

After the document size is detected in the step and the conveyance of the same document is taken over by the platen belt 14, the next document is fed (corresponding to the step), and then from the step to the step (this time the document is ejected) and the step , is repeated.

When a one-hole inserter sheet is supplied during the copying operation as described above, the routine shown in FIG. 7 is entered.

After feeding the inserter paper (step), the paper feed roll 16 continues to feed the next document (step) and is stopped at the ingate (step).

The fed inserter paper is set on the platen glass 3 (step 〓〓), but is ejected without being exposed to light (step 〓〓).

In the meantime, upper tray 2 is used to supply copy paper.
0 is selected (Step 〓〓), and color paper 23 is fed from the same tray 20 (Step 〓〓).

Then, the document that had stopped at the step is fed again by the paper feed roll 16 (step).
The document size is detected during paper feeding (Step 〓〓),
Next, the platen belt 14 takes over and sets it on the platen glass 3 (step), where it is subjected to exposure.

Then, the image is transferred onto the color paper 23 supplied in step <<>.

After the document size is detected in step, the next document is fed by the paper feed roll 16 (step〓〓), and stopped at the in-gate (step〓〓).

The original that has been exposed is ejected (step), the next original that has been stopped at the in-gate is fed again (step 〓〓), and the size of the same original is detected during feeding (step 〓〓). 〓), platen glass 3
set above (step).

In the meantime, the previous tray (the tray that was selected before the upper tray was selected in step 〓〓) is selected for supplying the copy paper (step 〓〓),
Ordinary blank paper is fed from the same tray (Step 〓〓).

Then, in step, the image of the original set on the platen glass 3 is transferred (step 〓〓).

Thereafter, steps 〓〓〓〓〓〓〓〓, step〓〓〓, step〓〓〓,〓〓 are repeated.

When a single-hole inserter sheet is fed in this way, the image of the document fed next to the inserter sheet is copied onto the color paper 23, and the next document and subsequent documents are copied onto blank sheets. .

Next, a case in which a two-hole inserter sheet is fed will be explained based on FIG. 8.

After the two-hole inserter paper is fed by the paper feed roll 16 (Step 〓〓, the platen belt 14
The image is then taken over and set on the platen glass 3 (Step 〓〓), but is discharged without being subjected to exposure (Step 〓〓).

The next document on the inserter sheet is fed by the paper feed roll 16 (Step 〓〓) and stopped at the in-gate (Step 〓〓).

During this time, the upper paper feed tray 20 is selected for supplying copy paper (step 〓〓), and the
The color paper 23 is supplied from 0 (step 〓〓), but is ejected as is without being transferred.

Then, in step 〓〓, the original stopped at the in-gate is fed again by the paper feed roll 16 (step), the original size is detected during feeding (step 〓), and then the platen belt 16
4 on the platen glass 3 (step 〓〓) and subjected to exposure.

In the meantime, the previous tray is selected for supplying copy paper (step 〓〓), and blank paper is fed from the same tray (step 〓〓).

Then, in step <<>, the original set on the platen glass 3 and subjected to exposure is transferred (step <<>).

After that, 〓 〓 〓, Steetp 〓 (this time, manuscript discharge), 〓, and Stezp 〓, and 〓 are repeated.

When the two-hole inserter paper is fed in this way, the color paper 23 is fed, but is ejected without being copied, and a copy image is formed on the blank paper that is fed afterwards. .

As described above, three types of inserter paper are fed between the required originals, and depending on the type of inserter paper, color paper is inserted between normal white paper after copying or without copying. can be inserted.

However, the paper to be stored in the paper feed tray 20 is supposed to be the color paper 23, but if there are blank sheets interspersed among them, or if you mistakenly replenish the blank paper when replenishing the paper, there will be paper between the copied blank sheets. Even if it is inserted, since the paper inserted for interleaving paper is blank, its insertion position is not clear, and the purpose of interleaving paper cannot be achieved.

Therefore, reflective photo sensors 40, 41, and 42 are provided to detect the color of the fed paper at an early point in time after paper feeding from the tray begins.
If the paper fed for interleaf paper is blank, the operation of the copying machine is immediately stopped.

This control operation will be explained according to the flowchart shown in FIG.

First, it is determined whether or not the paper feed roll 26 is supported or not (step 〓〓), and if there is no such instruction and the paper feed roll 26 is not driven, no control is performed by this routine.

When inserter paper is detected and a slip sheet is specified, an instruction is given to drive the paper feed roll 26, and the amount of light reflected from the fed paper is detected by the photo sensor 40 (step). If the amount of reflection is small, it is determined to be color paper, and if the amount of reflection is large, it is determined to be white paper (step 〓).

If the fed paper is the color paper 23, it is correct and the routine exits. However, if it is a blank paper, it was placed in the tray 20 by mistake, so the paper feed roll 26 is immediately stopped. (Step〓〓), and stop the operation of the copying machine (Step〓〓).

Therefore, the operator can immediately remove the blank paper that has stopped during paper feeding, check the paper in the paper feed tray 20, and start copying again with all colored paper.

Therefore, copies are made with blank sheets supplied as interleaf sheets, and there is no need to later search for the mistakenly ejected blank sheets and replace them with colored sheets.

In addition, when forming a copy image on color paper for interleaf paper as in the one-hole routine described above,
It is possible to prevent waste such as when blank paper is fed by mistake and copies are made on the same blank paper.

In particular, if a copy is mistakenly made on a blank sheet of paper during the one-hole routine, it becomes increasingly difficult to find the interleaving part because there are copies made on blank sheets of paper in succession before and after.
Although it is necessary to perform troublesome work such as copying onto color paper again in order to obtain the correct interleaf state, there is no need for these post-processing steps.

Note that in this embodiment, not only the sheets fed from the interleaf tray 20 but also the sheets fed from the other trays 21,
The difference in quality of the paper fed from the paper 22 is also determined by photo sensors 41 and 42, thereby preventing unnecessary copying due to mistaken paper replenishment.

In this embodiment, photo sensors 40, 41, 4
2 was placed on the exit side of the tray, but by placing it above the paper stored in the tray, it is possible to determine the paper quality of the paper immediately before feeding by driving the paper feed rolls 26, 27, and 28. good.

In this embodiment, a reflective photo sensor was used to identify the color of the paper being fed, and identification was performed based on the amount of light reflected. However, a transmissive photo sensor is used to detect the amount of light transmitted. It is also possible to identify it by

Furthermore, by using a transmissive photo sensor, it is possible to identify differences in paper quality other than the color of the paper, and it is possible to use paper with a different quality other than color for the interleaf paper.

Furthermore, in this embodiment, different types of paper for interleaf sheets were stored only in the upper paper feed tray, but several types of different types of paper were stored in separate trays to correspond to the types of inserter paper. A required different type of paper may be inserted.

Effects of the invention This invention prevents wasteful interleaving work by stopping or not feeding paper when the paper to be fed for interleaf paper is regular paper. At the same time, after copying is completed, there is no need for troublesome work such as searching for erroneously fed regular paper and replacing foreign paper, which greatly reduces the burden on the operator.

Furthermore, it is possible to prevent copying onto the wrong paper, thereby reducing waste.

As described above, the present invention is convenient for users and can increase the value of use.

[Brief explanation of the drawing]

FIG. 1 is an internal schematic diagram of a copying machine according to an embodiment of the present invention, FIG. 2 is a plan view of the embodiment with the ADF removed, and FIG. 3 is a diagram showing inserter paper.
FIG. 4 is a block diagram of the control system of this embodiment, FIGS. 5 through 8 are flowcharts showing the interleaf sheet operation procedure by the same control system, and FIG. 9 is a flowchart showing a foreign paper discrimination control routine. 1... Copy machine, 2... ADF, 3... Platen glass, 4... Original, 5... Exposure lamp, 6...
Mirror, 7... Lens, 8... Drum-shaped photoreceptor,
9...Charging device, 10...Developing device, 11...Transfer device, 12...Cleaning device, 13...Fixing device,
14...Platen belt, 15...Pulley, 16
...Paper feed roll, 17...Control panel,
18... Start button, 19... Inserter paper, 20, 21, 22... Paper feed tray, 23...
Color paper, 24, 25...Blank paper, 26, 27,
28... Paper feed roll, 30... CPU, 31...
ROM, 32...RAM, 33...Input interface, 34...Output interface, 35...
... Paper feed roll motor, 36... Platen belt motor, 37, 38, 39... Paper feed roll motor, 40, 41, 42... Photo sensor,
S ₁ , S ₂ , S ₃ , S ₄ ... Photo sensor.

Claims (1)

[Scope of Claim for Utility Model Registration] An interleaving paper form in which copies are made on a different type of paper as an interleaving paper in response to a command from an inserter paper that separates and places originals together with originals on the original placing section of a copying machine. Copying is performed by selecting an interleaf form that does not perform copying on the different paper as paper, and inserting the different paper according to the selected interleaf form into the copied copy paper to divide the copied copy paper. An automatic interleaving sheet control device that includes a plurality of paper feed trays, a means for supplying foreign paper stored in any of the paper feed trays to a copying section of a copying machine, and discriminating foreign paper in each paper feed tray. a control means for stopping copying of the copying machine when a form of interleaving paper copying is selected by the inserter paper and the paper selected as the interleaving paper by the sensor is found to be not a foreign paper; An automatic interleaving paper control device comprising: