JPH01116569A - Image forming device - Google Patents

Abstract

PURPOSE:To easily and surely execute automatic variable magnification with a simple operation in manually feeding paper in an image forming device by inputting the size of an undefined medium to be recorded by a coordinate input means and determining the copying magnification of the image of an original according to the size thereof. CONSTITUTION:When an automatic variable magnification function is selected by an automatic variable magnification key and paper feeding in a manual mode is performed, it is judged whether a size input flag is set by a mode key on a pressure plate with a digitizer. When a size input flag is set, each area specified data of a memory area is fetched as the size data of the undefined recording paper. Next, variable magnification rate is determined based on the size data and copying in the optimum automatic variable magnification is performed to the fed undefined recording paper in the determined variable magnification rate. Thus, automatic variable magnification can be easily and surely performed with a simple operation in manually feeding the paper in the image forming device.

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to an image forming apparatus such as a copying machine or a facsimile machine, and in particular has an area designation function, a manual paper feeding function, and
The present invention relates to an image forming apparatus having an automatic magnification change function.

[Conventional technology] 2. Description of the Related Art Conventionally, image forming apparatuses such as copying machines have been provided that have a function of manually feeding recording paper. In addition, some copying devices in recent years are equipped with a function, generally called automatic scaling, that automatically enlarges or reduces the original image to match the size of the standard recording paper being fed. There is. [Problems to be solved by the invention]

However, the automatic magnification change function of conventional devices of this type is
It can only be used for standard-sized recording paper stored in a designated cassette or deck, and cannot be used for feeding recording paper of unknown size (that is, irregularly shaped) by manual paper feeding, etc. as described above. There are drawbacks. SUMMARY OF THE INVENTION It is an object of the present invention to provide an image forming apparatus that eliminates the above-mentioned drawbacks and is capable of automatically changing magnification even when using irregular-sized recording paper. [Means for Solving the Problems] In order to achieve the above object, the present invention provides a feeding means for feeding an irregularly shaped recording medium to an image recording section, and a system that inputs and specifies the size of the irregularly shaped recording medium. The present invention is characterized by comprising a coordinate input means and an automatic magnification change means for automatically determining the copy magnification of the image of the document according to the size input and designated by the coordinate input means. [Function] According to the present invention, the size of an irregularly shaped recording medium is input using the coordinate input means, and the copying magnification of the original image is automatically determined according to the size. Even when manually feeding paper into the device, automatic magnification change can be easily and reliably performed with a simple operation. [Embodiment 1] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the internal configuration of an embodiment of the image forming apparatus of the present invention. In this figure, 100 is a main body that has an image reading function that exposes and scans a document and an electrophotographic image recording function that uses a charged image, and 200 is a main body that has a double-sided image recording function that uses an electrophotographic image recording function that uses a charged image. Bedistal is a recording paper refeeding means that has a processing function and a multiplex recording function that performs multiple recordings on the same recording medium, and 300 is a document holding pressure plate (hereinafter referred to as a digitizer pressure plate) that has an area specification function using a digitizer. ). Further, 400 is a paper folding device that folds sheets at a predetermined position, and 500 is a finisher (post-processing device) that has a sorting function and a stable function. These 200 to 500 devices can be used in any combination with the main body 100. A9 main body (100) In the main body 100, 101 is a document table glass on which the original is placed, 103 is an illumination lamp (exposure lamp) that illuminates the original, and 105, 107, and 109 are scanning lights that change the optical path of the reflected light of the original. Reflection mirror (scanning mirror), 1
11 is an imaging lens having a focusing function and a variable magnification function;
13 is a fourth reflection mirror (scanning mirror) that changes the optical path
, 115 is an optical system motor that drives the optical system, 11
7, 11, 9, and 121 are sensors, respectively. 131 is a photosensitive drum, 133 is a main motor that drives the photosensitive drum 131, 135 is a high voltage unit, 137 is a blank exposure unit, 139 is a developing device, 141 is a transfer charger, 143 is a separation charger, and 145 is a cleaning device. be. Reference numeral 151 denotes an upper cassette containing regular-sized recording paper, 153 a lower cassette, 154 a manual feed tray having a manual feeding function for irregular-sized recording paper, 155, 156 and 157 paper feeding rollers, and 159 a registration roller. Also, 1
61 is a conveyor belt that conveys the recording paper on which an image has been recorded to the fixing side, 163 is a fixing device that fixes the conveyed recording paper by thermocompression bonding, and 167 is a sensor used for double-sided recording. The surface of the photosensitive drum 131 described above is made of a seamless photosensitive member using a photoconductor and an electric conductor. The motor 133 starts rotating in the direction of the arrow in the figure. Next, when the predetermined rotation control and potential control processing (preprocessing) of the drum 131 is completed,
An original placed on an original platen glass 101 is illuminated by an illumination lamp 103 integrated with a first scanning mirror 105, and the reflected light from the original is reflected by the first scanning mirror 105,
Second scanning mirror 107. An image is formed on the photosensitive drum 131 via the third scanning mirror 109 , the imaging lens 111 , and the fourth scanning mirror 113 . On the other hand, the photosensitive drum 131 is connected to the high pressure unit 13 immediately before it.
Corona charged by 5. After that, the lighting lamp 103
The image (original image) illuminated by is exposed to slit light,
An electrostatic latent image is formed on the photosensitive drum 131 using a known electrophotographic copying method (for example, NP method). Next, the electrostatic latent image on the photosensitive drum 131 is transferred to a developing device 139.
The toner image is developed by a developing roller 140 and visualized as a toner image, and the toner image is transferred onto recording paper by a transfer charger 141 as described later. That is, the upper cassette 151. Recording paper (also referred to as transfer paper) in the lower cassette 153 or the manual feed tray 154 is fed into the device of the main body 100 by paper feed rollers 155, 157, or 156,
9, the latent image is sent toward the photosensitive drum 131 with accurate timing, and the leading edge of the latent image and the leading edge of the recording paper are aligned. Thereafter, the recording paper passes between the transfer charger 141 and the drum 131, so that the toner image on the drum 131 is transferred onto the recording paper. After this transfer is completed, the recording paper is separated from the drum 131 by a separation charger 143, guided to a fixing device 163 by a conveyor belt 161, fixed by pressure and heat, and then discharged from the main body 100 by a discharge roller 165. be done. After the transfer, the drum 131 continues to rotate, and its surface is cleaned by a cleaning device 145 composed of a cleaning roller and an elastic blade. B. Bedistal (200) The bedestal 200 can be separated from the main body 100 and includes a deck 201 capable of storing 2000 sheets of recording paper and an intermediate tray 203 for double-sided copying. In addition, the deck 201 lifter that can hold 2000 sheets (
The elevator (elevator) 205 automatically ascends according to the amount of transfer paper so that the recording paper always contacts the paper feed roller 207 with a predetermined pressure. Further, 211 is a paper discharge flapper that switches the path between the double-sided recording side or multiplex recording side and the discharge side path, and 213, 2
Reference numeral 15 denotes a conveyance path of a conveyor belt, 217 denotes an intermediate tray weight for holding down the recording paper, and the recording paper that has passed through the paper ejection flapper 211 and the conveyance path 213 and 215 is turned over and stored in the intermediate tray 203 for double-sided copying. . Reference numeral 220 denotes a width adjusting plate that aligns the recording sheets stored in the intermediate tray 203. Reference numeral 219 denotes a multiplex flapper that switches the path for double-sided recording and multiplex recording, and is disposed between the conveyance paths 213 and 215, and rotates upward to move the recording paper to the multiplex recording conveyance path 22.
1, 223 is a multiple paper ejection sensor that detects the end of the recording paper passing through the multiple flapper 219. 225 is route 2
This is a paper feed roller that feeds recording paper to the drum 131 side through 27. Reference numeral 229 is a discharge roller that discharges the recording paper to the outside of the bedistal 200. During double-sided recording (double-sided copying) or multiplex recording (multiple copying), first, the tip of the paper ejection flapper 211 in the vicinity of the paper ejection roller 165 of the main body 100 is raised upward by rotating counterclockwise to remove the copied records. Paper transport path 2 of bedicle 200
13, 215 to the intermediate tray 203, where it is stored. At this time, the multiple flapper 219 is lowered during double-sided recording and raised during multiple recording. This intermediate tray 2G3 can store up to 99 sheets of recording paper, for example. The recording sheets stored in the intermediate tray 203 are aligned by the width shifting plate 220 and are pressed down by the intermediate tray weight 217. The position of the width shifting plate 220 can be changed using, for example, a stepping motor. During the next back-side recording or multiplex recording, the recording paper stored in the intermediate tray 203 is fed one by one from the bottom to the registration of the main body 100 via the path 227 by the action of the paper feed roller 225 and the weight 217. The paper is guided to the roller 159 and recorded by the same copying operation as described above. C. Digitizer pressure plate (300) A second example of the appearance of the digitizer pressure plate 300 seen from above.
As shown in the figure. In this figure, 301 is a resistor (hereinafter referred to as a size specification sheet) as a planar area specification section for reading the position in the horizontal direction (X direction) and the vertical direction (Y direction);
302 is a writing instrument-shaped lead-ben switch used when specifying an area and mode input, 310 is a clear key for clearing input on the digital Shibu Iza, 311 is a registration key for registering input for area specification, and 312 is a trimming key. mode key 313 for specifying copy mode such as masking, etc.
is a size input mode key for specifying the size of irregular recording paper when copying by manual paper feeding. After the operator presses the mode key 312 or 313 with the tip of the lead pen switch 302, the operator also presses the lead pen switch 302 to select two points in the area specified on the size specification sheet 301, for example, point A and point A', or 8 points. By pressing and B' point, the area surrounded by A-B-A'-8'-A is specified, and by further pressing the registration key 311 with the lead pen switch 302, the specified mode and area are set to internal. It is registered in the memory, and when copying is subsequently performed, the trimming, masking, or irregular-shaped recording paper size specification function operates according to the registration. 00 Paper folding device (4θθ) The paper folding device 400 shown in Fig. 1 can perform half-folding, which folds recorded recording paper at approximately the center of the paper, and Z-folding, which folds recorded paper into three parts at two predetermined positions so that the cross section is almost Z-shaped. This is what we do. In this paper folding device 400, 401 is a flapper that guides the recording paper downward during paper folding, and 403 and 405 are paths (
407 and 409 are folding rollers. In the paper folding device 400, when Z-folding is specified using the Z-folding key described later, the flapper 401 is turned on to guide the recorded paper to the lower path 403, and the leading edge of the paper is folded at the end of the path 403. Once stopped, the sheet of paper that has been folded into pieces passes through rollers 407 and hits the end of path 405, and then the roughly folded paper passes from rollers 407 to rollers 409 again and is guided to finisher 500. Also, when half-fold is specified using the half-fold key described later,
The recorded paper is folded at a pass 403, and then is ejected from a roller 409 to a finisher 500 without going to a pass 405. On the other hand, when the fold key is not specified and the paper is not folded, the flapper 401 is turned off and the recorded paper is directly ejected to the finisher 500. E. Finisher (500) In the finisher 500 that performs sorting or stable processing of recorded paper, 501 is a path switching paper discharge flapper that selectively switches between the sorting bus 503 and the stable path 505. , 507 is a stable tray that temporarily stores recorded paper before being stabilized, 509 is a width adjusting plate provided on the stable tray 507 for regulating width, and 511 is a width adjusting plate 509 for regulating width. A stapler that stabilizes multiple recorded papers (
513 is a stacker tray for storing stable recorded paper, and the width adjusting plate 509 is driven and controlled by a stepping motor (not shown). Reference numeral 515 denotes a sorting tray for sorting non-stable recording paper. The recorded paper ejected from the main body 100 or the bedistal 200 is half-folded or Z-folded by the paper folding device 400 according to a key specification, and then the oscillating type sorting of the finisher 500 is ejected to the tray 515. Further, it is discharged to the stable tray 507. The recorded sheets discharged to the stable tray 507 are regulated in width by a width adjusting plate 509 for each part of the specified number of sheets, stapled by a stapler 511, and dropped into a stacker tray 513. That is, in the finisher 500, when the stable mode is selected by the stable key described later, the paper ejection flapper Sol is turned on and the recorded paper is ejected to the stable tray 507 via the path 505, and the specified number of sheets is When this is reached, the width adjusting plate 50g and the stapler 511 are turned on in response to an instruction from the main body 100, and the recorded sheets on the stable tray 507 are stapled using the stable stapler. Thereafter, the stabilized paper is dropped onto the stacker tray 513. By repeating this operation, a plurality of recorded documents that are collated and stably bound are completed. A sensor 517 detects the presence or absence of a needle on the stable, and a reflective optical sensor is used, for example. Furthermore, when stable processing is not selected, the paper ejection flapper 501 is turned off and the sorting is switched to the side.
The recorded paper passes through a path 503 and is sorted and discharged to a tray 515. At this time, according to instructions from the main body 10G, the recorded sheets can be stacked by alternately shifting 30+am to the left and right in well-defined units. FIGS. 3A to 3C show examples of the arrangement and configuration of the operation panel provided on the top surface of the main body 100 described above. The operation panel has a key group 600 and a display group 700 as described below. F. Key group (600) In Fig. 3 (^), 601 is an asterisk (*) key, which allows the operator (user) to select setting modes such as binding substitution settings and document frame eraser size settings. Used when specifying. Reference numeral 602 is an all-resect key, which is pressed to return to the standard mode. 603 is a preheating key;
Press to put the machine in the main body 100 into a preheating state and to cancel the preheating state. This key 603 is also pressed when returning from the auto-shutoff state to the standard mode. 604 is a copy start key (copy start key);
Press to start copying. 605 is a clear/stop key, which functions as a clear key during standby and as a stop key during copy recording. This clear key is pressed to cancel the set number of copies. It is also used to cancel * (asterisk) mode. Also, press the stop key to interrupt continuous copying. The copying operation stops after the copying at the time when the button is pressed is completed. 606 is a numeric keypad for setting numbers from 1 to 9.0, which is pressed when setting the number of copies. It is also used to set the * (asterisk) mode. Reference numeral 607 is a memory key in which modes frequently used by the user can be registered in advance. In FIG. 3(B), 608 and 609 are copy density keys, which are pressed when manually adjusting the copy density. 6
Reference numeral 10 denotes an AE (automatic density adjustment) key, which is pressed to automatically adjust the copy density according to the density of the original, or to cancel AE and switch the density adjustment to manual. A cassette selection key 611 is pressed to select the upper cassette 151, the lower cassette 153, and the lower paper deck 201.In addition, an RDF (circulating document feeder) is installed in place of the digitizer pressure plate 300. When a document is placed on this RDF, APS (automatic paper cassette selection) can be selected using this selection key 611. When APS is selected, a cassette of the same size as the original is automatically selected. Also, 612
is the same-size key, which is pressed to make a same-size (original size) copy. In FIG. 3(C), 613 is an auto-magnification key, which is pressed to automatically reduce or enlarge the original image according to the specified recording paper size. 614 and 615 are zoom keys, which are pressed when specifying an arbitrary magnification between 64 and 142%; 616 and 617 are fixed magnification keys, which are pressed when specifying reduction or enlargement of a fixed size. 618 is a duplex key, which is pressed to make a double-sided copy from a single-sided original, a double-sided copy from a double-sided original, or a single-sided copy from a double-sided original. 619 is a binding key, which prints a specified length on the left side of the recording paper. You can create a binding margin. 62
0 is a photo key, which is pressed when copying a photo original. Reference numeral 621 is a multiple key, which is pressed when creating (combining) an image from two originals on the same side of recording paper. Reference numeral 622 denotes a document frame erase key, which the user presses when erasing the frame of a standard size document.The size of the document at that time is set using the asterisk key 601 in FIG. 3(A). 62
3 is a sheet frame erase key, which is pressed to erase the frame of the document according to the cassette size. Reference numeral 624 is a page continuous copying key, which is pressed when copying the left and right pages of the original onto separate sheets. Reference numeral 625 is a staple key, which is pressed to bind the recorded sheets with a stapler. 62B is the Z-fold key, and A
627 is a half-fold key, which is pressed to fold recorded paper of size 3 or B4 into a Z-shaped cross section, and is pressed to fold recorded paper of size A3 or B4 in half. 628 is a sort key, and sorting is done by tray (sorter) 5.
If 15 is connected, it is lit in standard mode. At this time, press this key 628 to cancel the sort mode or to enter the sort mode. Reference numeral 629 is a group key, which copies a plurality of sheets from one document and stores the sorting in the tray 515 bin by bin if the tray 515 is connected. Reference numeral 630 in FIG. 3(A) is an interrupt key, which is used when performing interrupt copying during the - series copying operation. G. Display Group (700) In FIG. 3(C), 701 is an LCD (liquid crystal) type message display, for example, one character is made up of 5×7 dots and can display a 40-character message. This display 701 is a transflective liquid crystal display and uses two colors for the backlight.Normally, a green backlight is lit, and an orange backlight is lit when an abnormality occurs or when copying is not possible. 702 is a magnification display, which displays the copy magnification set with the zoom keys 616 and 617 in % (
(percentage). Further, in FIG. 3(B), reference numeral 703 is an equal magnification indicator, which lights up when equal magnification is selected. Reference numeral 704 is a color development indicator, which lights up when a sepia developer is set. A copy number display 705 displays the number of copies or a self-diagnosis code. Reference numeral 706 indicates a used cassette display, indicating whether the upper cassette is 151°, the lower cassette is 153. Which of the lower decks 201 is selected is displayed by lighting. Reference numeral 707 denotes a document direction indicator, which displays the direction in which the document is set (vertical/horizontal). Reference numeral 708 denotes an A2 display, which lights up when AE (automatic concentration adjustment) is selected using the AE key 610. Furthermore, in FIG. 3(A), 709 is a preheating indicator, which lights up in the preheating state. In the auto-shutoff state, this indicator 709 flashes. 710
is a ready/wait indicator, which is a two-color LED of green and orange, which lights green when ready (copy possible) and lights orange when wait (copy not possible). Reference numeral 711 in FIG. 3(C) is a double-sided copy display, which lights up when either double-sided copying from a double-sided original or double-sided copying from a single-sided original is selected. The standard mode has settings for one copy, manual density mode, same size, and one-sided copying from a one-sided original. H1 Control Device (aOO) FIG. 4 shows an example of the circuit configuration of the control device 800 of the embodiment shown in FIG. In FIG. 4, 801 is a central processing unit (CPU) that performs arithmetic control for carrying out the present invention, and uses, for example, a microcomputer μC0M87AD manufactured by NEC (NEC Corporation). Reference numeral 803 denotes a read-only memory (a control program) in which a control procedure (control program) as shown in FIGS. 5 and 6 according to the present invention is stored in advance.
ROM), and the CPU 801 is: (7) RO
Each component device connected via the path is controlled according to the control procedure stored in the M 803. Reference numeral 805 denotes a random access memory (RAM) which is a main storage device used for storing input data and as a working memory. 807 is a CPU 80 for loads such as the main motor 133.
809 is an interface for input signal transfer that inputs input signals from the image tip sensor 121 and the like and sends them to the CPO 301; 811 is a key group 600 and a display group 700; This is an interface that controls input and output. These interfaces 807, 809, and 811 use, for example, NEC's input/output circuit board μPD8255. Note that the display group 700 is each display device shown in FIG. 3, and uses, for example, an LED (light emitting diode) or an LCD (liquid crystal display). The key group 600 is each key shown in FIG. 3, and the CP 0801 can tell which key has been pressed by a known key matrix. 1. Operation example (Part 1) Next, referring to the flowchart in FIG. 5, size setting is performed using the digitizer pressure plate 300 when feeding irregularly shaped recording paper by manual paper feeding, etc. according to the embodiment of the present invention. We will explain the operation to perform this. First, the user (operator)
02 to the electrode surface of the digitizer pressure plate 300 to specify an area, wait for the lead ven signal pressed by the lead ven switch 302 to turn on (input) (step 5101, see FIG. 2). When the ON signal of 302 is input, the pressure plate 30 with digitizer is immediately turned on.
0 electrode applied voltage is specified on the X axis (step 5102
), convert the voltage corresponding to the pressed position (i.e.,
It is stored in a predetermined area (X-BuF) in the AM 805 (step 5104). Next, switch the electrode applied voltage mentioned above to Y-axis designation (
Similarly, the X-axis input terminal is A/D converted (Step 510B) and stored in a predetermined area (Y-BuF) in the RAM 805 (Step 5107).
. Next, the data of the area (Y-BuF) is compared with the maximum value within the preset coordinate input area of the digitizer pressure plate 300 to determine whether it is within the area or outside the area (step 51θ8). If it is determined, RAM 805
Area specification data address (X-2nd) within
Data address (X-1st) to (Y-2nd). Shift (transfer) the contents of (Y-1st) (Step 5
109), the area imported this time (X-BuF),
The contents of (Y-BuF) are (X-1st), (Y-1
st) Refresh the coordinates of the designated area by clicking 7 (transfer) so that the latest two points of data are always stored, and then return to step 5. With this, even if the data is sequentially specified by the lead-ven switch 302, the latest data will always be available. On the other hand, if it is determined in step 5108 that it is outside the area, either mode setting key 312 or 313 is scanned. Then, it is determined whether the data value of the area (X-BuF) is the voltage value of the size input mode key 313 of the irregularly shaped recording paper by comparing it with a predetermined setting value (step 5111), and if it is the setting value. If it is determined, set the size input flag F in step 5112.
), the process returns to step 5101 again. However, in step 5ill, the size input mode key 313
If it is determined that the voltage value is not the same, processing is performed according to the corresponding various keys 310, 311, and 312 (step 5113), and the process returns to step 5101 again. The processing in response to the various keys in step 5113 is not directly related to the present invention, so detailed explanation thereof will be omitted. J. Operation Example (Part 2) Next, the copying operation with automatic magnification change according to the embodiment of the present invention after inputting the size of the amorphous recording paper as described above will be explained with reference to the flowchart in FIG. do. When the automatic magnification change function is selected by the auto magnification change key 613 in FIG. It is determined whether the size input flag F is set (step S6θ1), and if the size input flag F is not set, operations in other various modes are performed (step 5605). The details of the operation in step 5605 are not directly related to the present invention and will therefore be omitted. If the size input flag F is set, the memory area (X-
1st), (Y-1st), (X-2nd)
, (Y-2nd) is taken in as irregular recording paper size data (step 5602),
Next, a magnification ratio is determined based on the size data (step 56o3), and copying is performed using the optimal automatic magnification change for the fed irregular-form recording paper at the determined magnification ratio (step 5604). . Since the specific contents of automatic magnification change are well known, detailed explanation thereof will be omitted. Then return to the main routine. K. Modification In the above-mentioned embodiment, manual paper feeding was explained as a paper feeding means for irregularly shaped recording paper of unknown size.
As a paper feeding means for this irregularly shaped recording paper, there is also a so-called universal cassette which can load irregularly shaped recording papers, and it goes without saying that the present invention can also be applied to paper feeding by this universal cassette. [Effects of the Invention] As explained above, according to the present invention, the size of an amorphous recording medium is input using the coordinate input means, and the copying magnification of an image of a document is automatically determined according to the size. Since this is done, it is possible to easily and reliably perform automatic magnification change with a simple operation even when manually feeding paper into an image forming apparatus.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing the overall internal structure of an embodiment of the present invention, FIG. 2 is a plan view showing an example of the structure of the digitizer pressure plate 300 shown in FIG. 1, and FIGS. C) are the first
FIG. 4 is a block diagram showing an example of the circuit configuration of the control device of the embodiment of the invention shown in FIG. 1; FIG. 5 is a size diagram of the embodiment of the invention. Flowchart showing the input operation. FIG. 6 is a flowchart showing the automatic magnification changing operation according to the embodiment of the present invention. 1θ0...Main body, 131...Photosensitive drum, 151.153...Cassette, 154...Manual feed tray, 200...Bad storage, 201...Deck (lower deck), 203...Double-sided copying 207... Paper feed roller, 211... Paper discharge flapper, 217... Intermediate tray weight, 219... Multiple flapper, 220... Width shifting plate, 300... Pressure plate with digitizer , 301...Resistor, 302...Lead Ben switch, 310...Clear key, 311...Registration key, 312 Axis/mode key, 313-...Size input mode key, 400...Paper Folding device, 401... Flapper, 500... Finisher, 501... Flapper, 507... Stable tray, 509... Width baffle plate (width regulating plate), 511... Stapler-1 513 ...Stacker tray, 515...Tray for sorting, 600...Key group, 604...Copy start key, 613...Auto magnification key, 618...Double-sided key, 621...Multiple Key, 625... Stable key, 626... Bi-fold key, 628... Sort key, 700... Display group, 711... Double-sided copy display, 800... Control device, 801...・cpu. 803...ROM. 805...RAM.

Claims (1)

[Claims] 1) a) Feeding means for feeding an irregularly shaped recording medium to an image recording section; b) Coordinate input means for inputting and specifying the size of the irregularly shaped recording medium; c) An image forming apparatus comprising: automatic scaling means for automatically determining a copying magnification of an image of a document according to the size input and specified by a coordinate inputting means.