JPS6022139A - Operating method of copying machine - Google Patents

Abstract

PURPOSE:To eliminate a waste of operation time and to increase a copying speed by regarding the specification of copy format such as color selection and the specification of the number of copies in the format as one combination and specifying plural combinations at a time before copying operation is started. CONSTITUTION:An auto button 61 is pressed, copy format is specified with a mode selection key 52, and then a ten-key 55 is used to specify how many copies are to be taken in the format. Then, the mode selection key 52 and ten-key 55 are operated to specify how many copies are to be taken in another format, thus completing the operation. When a print button 59 is pressed after all combinations of desired format and copy quantity are specified, a copying machine performs copying operation in specified format until the specified quantity of copies are obtained. Five kinds of color specification mode are selected; format A for dichroic (alpha color and beta color), B for only alpha color, C for only beta color, D for removal of alpha color parts, and E for removal of beta color parts.

Description

[Detailed description of the invention] Technical field The present invention relates to a method of operating a copying machine.

PRIOR ART In conventional copying machines, the size of the copy paper can be switched between one or more sizes, such as 35 size, B4 size, A5 size, A4 size, etc., and the copying magnification can also be changed. Same size,
It is common practice to be able to switch between enlargement, reduction or even between several magnifications. Also, when copying a two-color original (the first color is expressed as α and the second color as β), such as with a two-color copying machine, when copying a two-color original with two colors as is ( Copying in two colors corresponding to α and β of the original), copying in one color (two ways of copying α and β of the original as α and copying as β), and copying in one color When copying with part removed (copying only the β part excluding the α part of the original and copying only the β part)
An operating method has been proposed that allows switching between two types of copying (i.e., copying only the α part and excluding the α part). In conventional copying machines, it is possible to switch between multiple types of copying as described above. If you want to make multiple copies of each copy type, set one copy type, set the number of copies, turn on the print switch, and when the copy process is finished, set the next copy type and copy. A series of repeated operations were required to set the number of copies and turn on the print switch i. Therefore, when a plurality of types of copies are to be made, there is inevitably time to stop the copying operation, and the operator is required to perform the operations many times. In other words, it had the disadvantage of wasting a lot of time.

Purpose The present invention solves the above-mentioned conventional objects, and when making multiple types of copies, especially when making copies in multiple copy formats in two-color copying, it is possible to easily set the copy format, set the number of copies, etc. The purpose is to provide an operation method that allows copying by performing an input operation only once.

Configuration A configuration for achieving the above object of the present invention will be described in detail below based on an embodiment shown in the drawings.

In the figure, an original placed on an original table l is illuminated by a lamp 2, passes through a first mirror 3, a second mirror 4, a third mirror 5, and an imaging lens 6e, and reaches a half mirror 7. The light beam is directed to the first photosensitive drum 11 by the half mirror 7.
The light beam is divided into a light beam and a second light beam directed toward the second photoreceptor drum 12.

The first light beam reflected by the half mirror 7 is reflected by the fourth mirror 8,
The light is incident on the first photoreceptor drum 11, for example, a red photoreceptor drum, through the fifth mirror 9.

The second light beam transmitted through the half mirror 7 is reflected by the sixth mirror io, and is exposed to the second photoreceptor drum 12, for example, a black photoreceptor drum.

It is convenient to arrange each mirror so that the optical path lengths of the first beam and the second beam are the same.

Although the following two colors, red and red, will be described, the present invention is not limited to these two colors.

A focus correction glass 13 and an aperture 1 are provided in the path of the first light beam for red.
4 is provided, and a filter t is provided in the path of the second light beam for black.
S, diaphragm 16 is provided.

A primary charging device 1 is provided around the first photoreceptor drum 11. ,
Secondary charging device 18, exposure position 19, developing device 20° transfer corona charger 21. A cleaning device 22 and a potential erasing lamp 23 are sequentially arranged in the rotational direction of the photoreceptor drum,
Using the difference in spectral sensitivity of the photoconductive layer of the photosensitive drum, an electrostatic latent image of only a red image is formed, and the image is visualized by the red developer of the developing device 20 and printed on the copy paper conveyed by the conveying heald 24. Transcribe.

After the transfer, the photosensitive drum is cleaned and neutralized to complete one cycle.

Around the second photoreceptor drum 12, there is also a primary charging device 17 (in the case of black, the secondary charging device can be omitted), an exposure device [is, a developing device 2° (the first photoreceptor drum 12 A transfer corona charger 2 which accommodates a developer of a different color, for example, black, than the developing device 20 disposed in the transfer corona charger 2! , a cleaning device 22 and an IJD 23' for potential erasing are arranged to transfer a black image onto copy paper conveyed by a conveyor belt 24 in the same manner as the first photoreceptor drum 11.

The second photoconductor drum has a green LED (IJD for potential erasing).
) 25 is placed between the primary charging device 17 and the exposure position to erase unnecessary portions prior to exposure. LED for potential erasing
A plurality of are arranged in the width direction.

The copy paper is fed out from the paper feed tray 26 by the paper feed roller 27, the leading edge of the paper is detected by the pre-registration sensor 34, and after a predetermined time necessary for the paper to reach the registration roller pair 35, the paper is fed. The conveyor belt 24, which is wound around the driving roller 36 and the driven roller 37 and corrected by the correction roller 38, is formed of a dielectric material, and the n1 belt position detector 39 detects the passage of the belt through the seam. Home position is detected.

Immediately after the belt position detector 39 detects passage of the seam, the conveyor belt 24 stops and waits. The conveyor belt 24 starts in synchronization with the start of the registration roller pair 35.

When the copy paper reaches the top of the conveyor belt 24, the corona discharger 2
8, it is electrostatically attracted to the conveyor belt 24 and conveyed without relative slippage on the conveyor belt 24.

While being conveyed, the copy paper transmits the light of the pre-transfer static elimination lamp 43 and is then charged with the first charge under the action of the transfer corona charger 21.
A developed image (for example, a red image) is transferred to the photoreceptor drum 110, and then, under the action of a transfer corona charger 21, a developed image, for example, a black image, is transferred to the second photoreceptor drum 12. The transfer static elimination lamp (PTL) 43 is operated for the purpose of lowering the electric charge of the developed image on the drum, that is, for the purpose of increasing the transfer efficiency.A transfer static elimination lamp (PTL) 43 is also provided on the side of the second drum 12. The photosensitive drums 11 and 12 are cleaned, neutralized if necessary, and the process from primary charging is repeated again. On the other hand, after the transfer, the copy paper is separated from the conveyor belt 24 by the action of the separation corona discharger 29 and the separation claw 30, fixed while passing between the fixing roller 31 and the pressure roller 32, and sent out to the paper output tray 33&C. At that time, discharge plan 4
4 to discharge the charged charge.

After the copy paper is separated, the conveyor belt 24 is cleaned by a cleaning blade 40 to remove the adhering developer, and is neutralized by discharge from a static eliminating corona discharger 42&C against a counter electrode plate 41, and is moved to a standby position by detection by a belt position detector 39. Stop.

Depending on the first photoreceptor drum 11, that is, the drum on the upstream side in the paper feeding direction, an image of two colors or the lighter color is formed, and depending on the second photoreceptor drum 12, or the drum on the downstream side, an image of the darker color of the two colors is formed. For example, in the case of two colors, red and black, it is convenient to form a red image on the first photoreceptor drum 11K and a black image on the second photoreceptor drum 12.

In other words, the residual developer on each drum is collected by each cleaning device 22 and can be reused, but some of the developer carried out by the conveyor belt 24 or on the copy paper is used for development on the next photoreceptor drum. If the developer is mixed with the developer, there is a possibility that the developer recovered from the second photoreceptor drum 12 will be a mixture of two colors. At this time, if a bright color (for example, red developer) is mixed with even a small amount of dark (for example, black) developer, the color will deteriorate and cannot be reused, but on the other hand, even if a little light color developer is mixed with a dark color, it will not be reused. It can be reused since it does not have much impact. Therefore, it is preferable that the upstream photoreceptor drum 11vc in the paper feeding direction forms a bright color, for example, a red image, and the downstream photoreceptor drum 12 forms a dark color, for example, a black image. Also, when copying images, if a bright color image is transferred first, there is no risk of dark color developer being mixed in, and a clear image can be obtained.
12 & I: In order to expose and transfer to the same copy paper, the transfer timings of both drums must be shifted by the distance between the two drums, that is, the distance between the copying positions of the photonic drums 11 e 12. Therefore, the distance between the exposure position and the transfer position of the first photoreceptor drum ti is the second photoreceptor drum 12.
It is necessary to make the distance between the transfer positions of both drums shorter than the distance between the exposure position and the transfer position of the two drums. For this reason, in order to make the diameter of the drum as small as possible, it is necessary to make the diameter of the first photoreceptor drum 1lTI'' smaller than that of the second photoreceptor drum A12. Since images can be formed separately on the drum, there is no need to form images for the entire copy paper on the drum, and it is only necessary to form partial images one after another and transfer them continuously. A drum with a smaller diameter is required compared to when forming a color image.Experimentally, the diameter of the first photoreceptor drum was 11'g, considering the purpose of downsizing the device.
o le+-25 degrees is preferred.As the photoreceptor drum, a composite photoreceptor having at least two conductive layers with different spectral sensitivities and a transparent insulating layer is used. A commonly used photosensitive drum such as a selenium drum can be used.

If a composite photoreceptor is used only for the first photoreceptor drum, due to sensitivity issues, it is necessary to switch modes between copying using only the second photoreceptor drum in monochrome copying mode and copying using two photoreceptor drums in two-color copying mode. If possible, it may be desirable to set the linear velocity of the conveying system for two colors to be slower than the linear velocity of the conveying system for single colors.

There is also a known method for making two-color copies using one photoreceptor drum.

In the example of the copying machine shown in FIG. 1, if it is desired to make multiple copies in different copying formats, the copying machine is provided with an operation panel 50 as shown in FIG. 2, for example.

That is, a selection key 51 is used to select between a conventional manual operation in which operations are performed for each copy format, or an automatic operation in which copy formats are automatically switched according to copy processing, and a mode selection key 52 is used to select a copy format. A number setting key 55 having a numeric keypad 53 for setting the number of copies, a clear stop key 54, and a first display section 5 for displaying the set number of copies.
6 and a second display section 57 for displaying the actual number of copies, and a print key 5 for giving a print command.
9. The selection key 51 includes a manual key 60 and an auto key 61. The mode selection keys 52 include, for example, an A key indicating two-color copying that reproduces two colors α and β as they are, a B key indicating forming an image with both α and β colors, and a key B indicating that images are to be formed using α and β. The C key indicates that both colors are to be imaged in β color, the D key is used to form an image only on the β color part excluding the α color part of the original, and the D key is used to form an image on only the β color part excluding the β color part of the original. and an E key for image formation. The operation panel 50 utilizes a storage device, such as a microcomputer, for storing the selected copy format, number of copies, etc.

The operation method using the operation panel 2 shown in FIG. 2 will be explained with reference to the flowchart shown in FIG. 3.

The operator selects manual or auto using the selection key 51 on the operation panel 50. In the case of manual, the number of sheets is set for each copy format as before. 55 i1'
ll: Repeat copying with more settings.

In the case of automatic mode, first, the desired copy format is set using the mode selection key 52, and the number of copies is set using the numeric keypad 53 of the number setting key 55.

Next, set the next copy format and number of copies. Similarly, all necessary copy formats and number of copies are set.Finally, by pressing the print key 59, copying is automatically performed.

As a specific example, 15 copies in copy format A and 7 copies in copy format C.
If you want to make a type of copy, select [A].

The keys will be pressed in the order of [:n, [s], C, (7), and [:P].

When pressing the print key on the operation panel, make sure that the main switch of the copier is on and ready for copying, and if necessary, the copy paper size, reduction, enlargement, etc.
It is assumed that settings such as designation of magnification such as equal magnification have been made.

Even in the case of automatic selection, it is of course possible to copy only one copy format and end the process.

In the case of two-color copying, copying formats of up to Sg class are possible. (The expression “copy format 5” in the claims is 2
It is not limited to color copying formats, but also includes those with different paper sizes and magnifications. ) The program in the microcomputer of the operation panel 50 in this case is shown in a flowchart as shown in FIG.

The operation of the copying machine according to the present invention will be explained with reference to FIG.

When a voltage is input to the operation panel due to operation of the copying machine, the microcomputer program starts.

Manual-auto selection key operation using selection key 51 (
Step ■) Determine whether the selection key operation is manual or automatic (Step ■) If manual, set the copy format using the mode selection key vc (Step ■), set the number of copies using the number setting key (Step ■) ), the print key is operated (step ■), and the copying machine performs a copying operation (step ■). When the copying operation is completed, it is determined whether the number of copies is equal to the set number of sheets (step ■). If the determination is NO, the process returns to the copying operation (step ■) and repeats until the determination in step ■ becomes equal to the set number of sheets. If the determination in step (2) is YES, the process returns to the standby state and repeats the steps. In addition, if you want to continue manually, especially select key 5L.
The previous state will be maintained even if you do not perform any operations.
You can set it to proceed automatically. The same process can be repeated for various copy formats below.

Of course, it is also possible to complete the process with one flow for one copy format.

If the determination in step ■ is automatic, set the copy format by operating the mode selection key (step ■), and operate the number setting key to set the number of copies in that case (step ■)
One copy format and the number of copies are set using the following steps. If you want to copy multiple copy formats, repeat steps ① and ② in that order. The microcomputer stores the copy format and number of copies according to the order of key operations.

Thereafter, by operating the print key (step O), the copying machine performs a copying operation (step 0). The first copying operation is about the copying format initially set in step (2).

Upon completion of step 0, determine whether the number of copies matches the number of copies set in step ■ (step ■)
. If the result of the determination is NO, a step ovc return copy operation is performed. Below, the determination of O step ■, which repeats step 0 5 times until the determination of step Q becomes yEs, is YES.
When K is reached, step σ is started for the second copy format set in step ①. After step 0 is completed, determine whether the number of copies for the second copy format matches the number of copies set second in step ■. return. Step @ discrimination is YIPI
Then, for the third copy format, the same operations as Step 2 and Step 0 are repeated.

In this way, the copying operation (step σ') and the determination of whether the number of copies matches the set number of copies (step σ) are repeated in the same manner for the copy format set last in step ■, and the determination of step σ is performed. When becomes YES, it returns to the standby state.

As described above, copying is automatically repeated for a plurality of copying formats by one operation of the print key 59.

Effects According to the present invention, if the desired copy format and number of copies are first set using the mode selection key and the number of copies setting key, multiple copies can be automatically made in succession for multiple copy formats by simply pressing the print key once. This eliminates the need for an uneconomical idle link operation when switching copy formats. Therefore, the operation is simplified and the production time can be shortened.◇ Although the present invention uses the expression "copying machine", the application is not limited to the operation of a so-called copying machine. It can also be applied to the operation of printers, and printers are also within the scope of the present invention.

[Brief explanation of drawings]

FIG. 1 is a schematic illustration of an example of a two-color copying machine, FIG. 2 is a schematic illustration of an example of an operation panel, and FIG. 3 is a flow chart showing an example of an operating method according to the present invention. 52...Selection key 55...Number of sheets setting key 59...
・Print key

Claims (2)

[Claims] (1) In a method of operating a copying machine having a key for selecting a copy format, a key for setting the number of copies, a print key, and a storage device for storing the set copy format and number of copies, A method of operating a copying machine, characterized in that a key for setting the number of copies is operated a plurality of times according to a copy format and the number of copies, and then a print key (i-1 times) is operated. (2) The copy format is the first color (referred to as α) and the second color (referred to as β).
From the two-color copy original of
iD A format that reproduces all images of the original as a monochrome image of α, OiD A format that reproduces all images of the original as a monochrome image of β, ■ A format that reproduces the image with the color part of the α erased from the original, (A format in which an image is reproduced with the color portion β of the manuscript erased. How to operate the machine.