JPS6162088A - Picture formation device - Google Patents

Abstract

PURPOSE:To synthesize plural pictures simultaneously with respective required magnification to record the synthesized picture by automatically overlaying plural pictures set up on an original board and changing respective magnification. CONSTITUTION:To execute the multi-copying of continuous pages, two originals A, B are set up on the surface of an original glass board 34, a paging key is depressed and a * mode setting key is depressed to set up the multi-copying. At that time, a required magnification can be set up, and when a copy key is turned on, the picture of the original A is copied and the copied paper is stored in an intermediate tray. At the end of the copying of the original A, the magnification is newly set up by a magnification key such as an equal magnification key, a fixed magnification modifying key, a zoom key, and auto- magnification modifying key. When the copy key is depressed again, the copied sheets on the intermediate tray are lead into a carrying course one by one from the lowermost sheet to start into a carrying course one by one from the lowermost sheet to start the copying of the original B. The copied sheets to which the pictures on the originals A, B are transferred are discharged to the outside of the machine by the action of paper discharging flapper.

Description

[Detailed description of the invention] 〔Technical field〕 The present invention relates to an image forming apparatus.

[Prior art]

Conventionally, when changing the magnification of two images and compositing them onto a single sheet of transfer paper, one original is set on the document table, a copy is made at the desired magnification, then the other original is replaced, and the copy is made again. I had to make copies by hand. Therefore, it takes time and effort to exchange originals and manual copying, and there are also drawbacks such as the fact that it is easy to make a mistake in the orientation of the paper when making manual copies.

〔the purpose〕

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to provide an image forming apparatus that can automatically overlay a plurality of images placed on a document table and change the magnification of each image.

〔Example〕

An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a cross-sectional view showing the overall structure of an embodiment of an image forming apparatus to which the present invention is applied.

In the figure, the surface of the drum 1 is made of a seamless photoreceptor using a photoconductor and an electric conductor, and is rotatably supported by a main motor 3 that is activated in response to pressing the copy start key.
starts rotating in the direction of the arrow. Then, when the predetermined rotation of the drum 1 and the potential control process (preprocessing) are completed, the document placed on the document table glass 34 is illuminated by the illumination lamp 40 that is integrated with the first scanning mirror 39. The reflected light is reflected from the first mirror
2nd Mira-36, 3rd Mira-37
.

Lens 35. The image is formed on the drum l via the fourth mirror 38.

The drum 1 is corona charged by the high pressure unit 2. Thereafter, the image irradiated by the exposure lamp 40 is exposed to slit light, and an electrostatic latent image is formed on the drum 1 by a known method. Further, 60 is a blank exposure lamp for erasing the surface charge of the non-copying part of the drum to prevent excess toner from adhering to the drum. It is also used for image shifting and cropping. Note that this embodiment uses an LED array.

Next, the electrostatic latent image on the photosensitive drum 1 is developed by a developing roller of a developing device 7, visualized as a toner image, and the toner image is transferred by a transfer charger 5.

The transfer paper in the upper cassette 13 or the lower cassette 14 is fed into the main unit by the paper feed roller 11 or 12, and is sent in the direction of the photosensitive drum l by the registration roller 15 with accurate timing, so that the leading edge of the latent image and the transfer paper is matched with the tip of the After that, transfer charger 5 and drum 1
The toner image on the drum l is transferred by the transfer paper passing between the drum l and the drum l.

After the transfer is completed, the transfer paper is separated from the drum 1 by the separation charger 8, guided to the fixing device 32 by the conveyor belt 17,
It is fixed by applying pressure and heating, and then the discharge roller 1
9-1 and 19-2 are ejected from the aircraft.

After the transfer, the drum 1 continues to rotate, and its surface is cleaned by a cleaning device 6 comprising a cleaning roller and an elastic blade.

The pedestal 200 can be separated from the main body 100 and has a deck 54 capable of storing 2000 sheets of transfer paper and an intermediate tray 59 for double-sided copying. Also, 20
The lifter 54L of the deck 54, which can accommodate 00 sheets, is raised according to the amount of transfer paper so that the transfer paper always comes into contact with the paper feed roller 50.

For double-sided copying and multiple copying of page snapshots described later,
First, the paper discharge flapper 33 of the main body 100 is raised to guide the copied transfer square paper to the pedestal 200 side, and store it in the intermediate tray 59 via the conveyance path 57 of the pedestal 200.

At this time, the multiplex flapper 52 is lowered for temporary double-sided copying, and raised for multiplex copying of page quick copying.This intermediate tray 59 can store up to 99 sheets of transfer paper. The stored transfer paper is held down by the intermediate tray weight 53.

During the next reverse side copy or multiplex copy, the transfer paper stored in the intermediate tray 59 is fed one sheet at a time from the bottom to the paper feed roller 51, and the weight 300 is operated by the circulating document feeder (
RDF) can automatically copy double-sided originals.

Furthermore, 400 is a collating device (sorter).

Collate the copies ejected from the main unit.

FIGS. 2(a) and 2(b) are plan views showing the entire operating section of the Zoo (7) main body.

A double-sided key 101 is pressed to make a double-sided copy from a single-sided original, a double-sided copy from a double-sided original, or a single-sided copy from a double-sided original.

102 is a sort key, which is lit in standard mode when only one sorter is provided. Press to cancel or enter sort mode.

Reference numeral 103 denotes a page continuous copying key, which is pressed to copy the left and right pages of a document on separate sheets.

104 is a zoom key, which is pressed to specify any magnification between 64 and 142%, and to set the tilt direction during image shift.

Reference numeral 105 is an auto-magnification key, which is pressed to automatically reduce the original to match the specified copy paper size.

Reference numeral 106 is a fixed size scaling key, which is pressed when specifying reduction or enlargement of the fixed size.

107 is the same size key, which is pressed to make a same size (original size) copy.

Reference numeral 108 is an automatic paper selection key, and document size 109 is a cassette selection key, which is pressed to select an upper cassette, a middle cassette, or a lower paper deck.

11O is an AE key, which is pressed to automatically adjust the copy density according to the density of the original, or to cancel AE and switch to manual mode.

111 is a copy density key, which is pressed to manually adjust the copy density.

Numeric keypad 112 is pressed to set the number of copies. It is also used when setting the * (asterisk) mode, when setting the coordinates for trimming, and when setting the shift amount when shifting the image.

113 is the * (asterisk) mode setting key, which is pressed when setting multiple copy, group (collate), image shift, document border erasure, and sheet border erasure.

114 is a clear key, which is pressed to cancel the set number of copies. It is also used to cancel book (asterisk) mode.

115 is a stop key, which is pressed to interrupt continuous copying. After the copying at the time of pressing is completed, the copying operation stops f1-.

116 is an all reset key, which is pressed to return to standard mode.

117 is a copy start key, which is pressed to start copying.

11B is a preheating key, which is pressed to put the machine into a preheating state or cancel the preheating state. It can also be pressed to return to standard mode from the auto shut-off state.

119 is double-sided copy display, double-sided copy from double-sided original,
Lights up when you select 2-sided copy from a 1-sided original.

120 is a one-sided copy display, which lights up when one-sided copy is selected from a double-sided original.

121 is a duplex mode display, which lights up when duplex mode is selected.

Reference numeral 122 is a toner collection display, which lights up when the collection container is full of used toner.

Copy keys will not be accepted while the light is on.

123 is a toner replenishment display, which is lit when toner is insufficient, and when 0 is lit, no copy key is accepted.

Reference numeral 124 indicates a forgotten original display, which lights up when the original is left on the original table glass for a predetermined period of time or more after copying is completed.

125 is a paper feed check display, which lights up when a paper jam occurs.

Reference numeral 126 in FIG. 2(b) is a simulation monitor display that displays the flow of paper within the main body. Note 1: Normally, this display is displayed, and when a paper jam occurs, the paper jam check display is displayed.

127 is a sort (T match) display, which lights up when the sort mode is selected and in that state.

128 is a page continuous shooting display, which displays page continuous shooting.

130 is an auto magnification display, which lights up when auto magnification is selected.

Reference numeral 131 indicates the same size display, which lights up when the same size is selected.

Reference numeral 132 indicates a standard size reduction display, which lights up when a standard size reduction is selected.

Reference numeral 133 indicates a standard size enlargement display, which lights up when a standard size enlargement is selected.

134 is an auto paper selection display, which lights up when auto paper selection is selected.

135 is the original orientation display, which indicates the orientation of the original (portrait/
(horizontal). This is determined by the paper size and copy magnification.

136 is the cassette selected in the paper supply display.

Lights up when there is no paper in the deck, when the selected cassette is not set in the main unit, or when the paper cover of the deck is open.

137 shows the cassettes used, upper and middle rows.

Displays which of the lower cassettes or decks is selected.

138 is a book (asterisk) mode display, which lights up when the zero (asterisk) mode is set.

Reference numeral 139 indicates the number of copies, which displays the number of copies, coordinates at the time of trimming, shift amount at the time of image shift, or self-diagnosis code.

140 is a wait display, and while 0 is lit while the main unit is warming up, copies cannot be made.

141 is an AE display, which lights up when AE (automatic density adjustment) is selected.

142 is a preheating display, which lights up when in the preheating state. Flashes when in auto shutoff mode. Note that when using RDF, the standard mode is set to 1 copy per copy, density AE mode, automatic paper selection, same size, and 1-sided copy from a 1-sided original. When RDF is not used, the settings are 1 copy per copy, manual density mode, same size, and 1-sided copy from a 1-sided original. The difference between when RDF is used and when it is not used is determined by whether or not a document is set in RDF.

Next, the operation control shown in FIG. 1 of the present invention will be explained.

FIG. 3 is a block diagram of a circuit for carrying out the present invention.
501 is a central processing unit (CPU), such as NEC's Kawa C
Use 0M87AD.

502 is a ROM memory that stores a control program;
U501 controls the device according to this program. 503 is a RAM memory which is the main storage device; 504 is an interface that outputs control signals to loads such as the main motor; 505 is an interface that inputs input signals from the tip sensor, etc.; 506 is an input/output device for keys 507 and display 508. It is an interface to control. The display 508 uses an LED and an LCD for each display shown in FIG. 2, and the key 507 is a well-known key matrix for each of the keys shown in FIG. 2, so that it can be seen which key has been pressed.

FIG. 4 is a sequence control flowchart in FIG. 3, and the present embodiment will be explained along this flowchart.

To make multiple copies of page snapshots, as shown in Figure 5,
Two originals A and B (A4 size in this embodiment) are placed on the original table glass 34.

Then, the page continuous copying key 403 is pressed, and the * (asterisk) mode setting key 113 is used to set multiple copying. Setting is performed by pressing a key, the CPU determines this, and latches the mode in the RAM.

That is, it is determined whether or not the page continuous copy key 103 has been pressed (step T1), and if it has been pressed, the page quick copy display 128 is displayed.
is turned on to determine whether or not the multiple copy mode is in step T2). If the multiple copy mode is set (that is, if the key is pressed), wait for the copy button 117 to be pressed (step T2). T3), at this time the operator can set a desired magnification. When the copy key 117 is ON, the multiplex flapper 52 is turned ON, that is,
Raise the flapper 52 to allow the transfer paper to flow to the conveyance path 57-2, turn on/off the main motor 3, turn on the high pressure unit 2, and turn on the paper discharge flapper 33, that is, turn on the flapper 33.
Raise the transfer paper so that it flows toward the intermediate tray (steps S2.3, 4.5), then rotate the drum 1 once to perform preprocessing. Once the preprocessing is completed, the selected cassette is fed. Turn on the paper roller (step SS, 7)
, the paper feed roller rotates and the transfer paper is fed to the registration roller 15. At this time, the drum clock corresponding to the time for feeding the transfer paper to the registration position is counted by a counter (not shown), and when the count value reaches 55, the paper feeding roller is turned off (step 38.9). During this time, the transfer paper reaches the registration position. In synchronization with the roller-off, an optical system motor (not shown) is turned on to move the optical system forward (step 510). When the optical system moves to the position of the image tip sensor 21 and the image tip sensor 21 is turned on, a registration timing by a timer is waited for so that the leading edge of the image formed on the drum I and the leading edge of the transfer paper coincide. After a predetermined time has elapsed, the resist clutch 15 is turned on, and the transfer paper is brought into contact with the drum 1 (step Sll, 12.13). When the optical system moves further forward and counts clocks (encoder pulses of the optical system motor) corresponding to the length of the A4 size sheet in the lateral force direction, the optical system is moved backward (step S14.15). When the home position sensor 22 turns on, the optical system motor is turned off to stop the optical system (step 5).
15-1.15-2). Thereafter, the image of the original A is copied, and the transfer paper is stored in the intermediate tray 59 through the conveyance path 57.degree. 57-2 by the discharge flapper 33 and the multiplex flapper 52.

When the multiple sheet discharge sensor 24 is turned on and then turned off within a predetermined time to confirm that the transfer paper is stored in the intermediate tray 59, the sheet discharge flapper 33 is turned off, that is, the flapper 3 is turned off.
3 and turn off the multiple flapper 52, that is, the flapper 5
2 (steps S16, 17, 18.19).

Next, lower the intermediate tray weight 53 (step 520), turn on the intermediate tray paper feed roller, and guide the transfer paper sheets one by one from the bottom to the conveyance path 58 (step 520). 522), when the image edge sensor 21 turns ON, it counts the clock corresponding to the horizontal length of the A4 size paper.The high pressure unit 2 for the A4 size paper is set to 0FFI (step 521), the main motor 3 is set to 0FFL (step 522), and the original Finish copying A.

Next, input of a magnification key such as the same magnification key 107, fixed magnification key 106, zoom key 104, or auto magnification key 105 is waited for, and when a magnification is pressed, a new magnification is set (step 34). 35).

Next, check the input of the copy key, and if the copy key is pressed, turn on the main motor 3 and turn on the high pressure unit 2.
Next, in steps S26 and 27), the intermediate tray paper feed roller is turned on to guide the transfer sheets one by one from the bottom to the conveying path 58, and copying of the original B is started (step 528).

Then, the timing is set at the position of the resist clutch 15. The optical system is moved forward again (step 529), and the image tip sensor 21
When turned ON, the clocks corresponding to the horizontal length of an A4 size sheet are counted.

After counting the A4 size, a timer (not shown) is used for a predetermined time (
In this embodiment, 150 m5) is measured and the registration timing is adjusted (steps S30 to S32). Then, the registration clutch 15 is turned ON and the image of the document B is copied over the image of the document A that has been copied. (Step 533) When the optical system moves further forward and the reversal sensor 25 turns on, the optical system is moved backward (step S34.35) and returned to the home position.

When the home position sensor 22 is ONL, the high voltage unit 2 is turned OFF, and the main motor 3 is turned OFF. (Steps 336 to 38) The transfer paper on which the images of the documents A and H have been copied is discharged outside the machine (sorter 400) by the action of the paper discharge flapper 33. Furthermore, when making multiple copies, the number of copies is set using the numeric keypad 112. Copy button 1
When 17 is pressed, a cycle of scanning the original A and making copies is performed for a set number of copies, and the set number of copies of the original A are stored in the intermediate tray 59. Next, the transfer paper stacked on the intermediate tray 59 is fed one by one from the bottom, and the document B is scanned and copied onto the transfer paper. This operation is repeated a set number of times.

Next, other copy modes will be briefly explained.

In step T2, if the multiple copy mode is not set, it is determined whether or not the duplex key 101 has been pressed (step T4); if the duplex key 101 has been pressed, the copy button 117 is determined.
Wait until is pressed (step T5). Copy button is ON.

Then, double-sided copying is performed using quick page copying (step T6). That is, first, original A is scanned and copied onto the front surface of transfer paper. Then, the paper discharge flapper 33 is turned on (raised state), the multiplex flapper 52 is turned off (lowered state), and the copied transfer paper is reversed and stored in the intermediate tray 59 through the conveyance path 57-1.

Next, scan the original B and copy it onto the back side of the transfer paper. The paper ejection framer 33 is turned off and the transfer paper on which both sides have been copied is ejected from the machine.

Further, if the copy button 117 is turned on with the duplex key 101 not pressed in step T4, one-sided copying is performed in page quick copying (step T7.8).
That is, first, original A is scanned and copied onto transfer paper.

Then, the paper ejection flapper 33 is turned off and the copied transfer paper is ejected from the machine.Next, the document B is scanned, copied, and similarly ejected from the machine.

Further, when the page continuous copying key 103 is not turned on in step TI, it is determined whether the multiple copy mode is set (step T9), and if it is set, the copy button 117 is waited for being turned on (step T9). Tl0)
. When turned on, multiple copy processing is performed (step T1
1). That is, the original is set on the original table or the RDF 300 and copied onto transfer paper. Then, the paper discharge flapper 33 and multiple flapper 52 are turned ONE.

and is stored in the intermediate tray 59 through the transport path 57, 57-1. Then, another original is set and copied over the transfer paper on which N original A has been copied. Paper ejection flapper 33
Turn it off and eject it from the machine.

Further, when the multiple copy mode is not set in step T9, it is determined whether the duplex key 101 is ONL (step T12), and if it is ON, the copy button 117 is
Wait for it to turn on (step TI 3), and when it turns on, perform double-sided copy processing (step T14). In this case, screen copy from double-sided original, single-sided copy from double-sided original,
There are three types of modes, from single-sided originals to double-sided copying.0 To double-sided copying from a double-sided original, set the double-sided original on the RDF300 and copy the front side.The copied transfer paper is transferred to the conveyance path by the paper ejection flapper 33 and the multiplex flapper 52. 57.57
-1 and is stored in the intermediate tray 59. Then, the original is reversed by the RDF 300, the back side of the original is copied onto the back of the transfer paper on which the front side has been copied, and the paper is ejected from the machine by the ejection flapper 33. Also, when making a single-sided copy from a double-sided original, the double-sided original is set on the RDF, a copy is made of one side, and the copy is discharged outside the machine. RDF300
The document is turned upside down, a copy of the back side is made, and the document is ejected from the machine. In addition, when making a double-sided copy from a single-sided original, the original is set on the original table or RDF and copied onto the front side of transfer paper. And this transfer paper is the paper output flapper 3
3. The multiple flappers 52 pass through the transport path 57° 57-1 and are stored in the intermediate tray 59.

Then, the next original is set, copied on the back of the transfer paper that was copied on the front, and then ejected outside the machine.

Note that when the duplex key 101 is pressed once, it makes a double-sided copy from a single-sided original, and when it is pressed once again, it makes a double-sided copy from a double-sided original, and then once again it copies a double-sided original from a double-sided original.
Press twice to switch to single-sided copy mode from double-sided originals. If you press the key once more, it becomes a normal copy (one-sided copy from a one-sided original), and the cycle continues each time you press the key.

If the duplex key 101 is not turned on in step T12, the process waits for the copy button 117 to be turned on (step T15), and when it is turned on, normal copy processing is performed (step T16).

In the above embodiment, an A4 size original was explained, but it is of course possible to use an 85 size or other size original.
Also, A3. It is also possible to combine the left and right images of a B4 manuscript.

In this way, documents can be easily created by making multiple copies of, for example, manuscript A containing the format of the document and manuscript B containing the details of the criminal.

You can also create documents such as seal certificates.

In addition, an image sensor such as a CCD is used as part of the optical system to perform BriScan to read the document size, and automatically reduce each document to the specified copy paper size.

It can also be expanded. Note that in a device that exposes and scans a document and photoelectrically reads the image with an image sensor, the image sensor for image reading can also be used to detect the size of the document.

In addition, a mode key is provided to select whether or not to make the magnifications of originals A and B different, so that when copying originals A and B at the same magnification, the device does not pause after copying original A. You can also do it.

Furthermore, if the copy magnification of both documents A and B can be set in advance, work efficiency can be further improved.

(Effects) As explained above, according to the present invention, it is possible to combine and record a plurality of images at a desired magnification with one operation.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the device to which the present invention is applied, FIG. 2 is a plan view showing the entire operating section of the device in FIG. 1, and FIG. 3 is a control block diagram of the device in FIG. 1. , Figure 4 (
1) and (2) are flowcharts showing the control procedure;
The figure shows the state of the document cellar 1, and FIG. 6 shows an example of output according to the present invention.

Claims (1)

[Claims] (1) A reading means for separately reading the plurality of images on the document table, a means for combining and recording the plurality of images on a single sheet of recording paper, and a means for combining the plurality of images by varying the magnification of each of them. An image forming apparatus comprising: means.