JPH1152644A - Image forming device and image forming method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce wrong image formation by taking out paper in the same direction as the detected direction of a document regardless of the assignment of an assigning means, and forming a read image on this paper. SOLUTION: During standby, a main control part 101 judges whether an automatic document size detecting mode is on. A document of required size is set lengthwise on a document table, and a document keep cover is closed. Then detectors 111-113 are turned on, and a signal indicating required size length is supplied to the main control part 101 from a document size detecting part 104. The main control part 101 therefore judges that the document of required size length is placed. A paper feeding cassette stored with paper corresponding to the judged required size length is selected, and a paper display 96a of a control panel 5 is lighted for display. When a copy key is closed on the basis of this display, the main control part 101 photocopies the read image of the document on the document table on selected paper corresponding to the required size using a photocopying part 102.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus such as a copying machine for reading a document image on a document table and copying the image on a sheet, and an image forming method.

[0002]

2. Description of the Related Art Conventionally, an image forming apparatus such as a copying machine has been equipped with automatic document size detection (APS; automatic paper).
As a selection mode, a function is provided for detecting the size and direction of a document placed on a platen serving as a platen and selecting a sheet having the detected size and direction of the document.

In such a copying machine, when the user presses a paper size key while the automatic document size detection mode is on, the automatic document size detection mode is turned off, and the size based on the automatic document size detection is changed. Instead of using paper in the direction, copying is performed using paper in the size and direction specified by the user.

However, if the size of the original is A4, A
5, B5, etc., both vertically placed (the longitudinal direction of the document coincides with the moving direction of the scanning system) and horizontally placed (the longitudinal direction of the document coincides with the direction perpendicular to the moving direction of the scanning system) After detecting the size and direction of the original using automatic document size detection, the same size as the original detected by the user (using the paper size key) in the automatic original size detection mode. When you specify the paper size,
In some cases, the automatic document size detection mode is turned off, and the paper direction is changed from portrait to landscape or from landscape to portrait. In this case, the size (size) of the paper does not change, but the orientation of the paper changes, and as a result, there is a disadvantage that the user makes a miscopy.

[0005]

As described above, after detecting the size and direction of a document by automatic document size detection, the user erroneously sets the paper direction from portrait to landscape,
Or, removes the disadvantage of incorrect image formation by changing from landscape to portrait orientation.After detecting the size and orientation of the original with automatic document size detection, the user Change the direction from portrait to landscape,
Another object of the present invention is to provide an image forming apparatus and an image forming method capable of reducing erroneous image formation due to changing from a horizontal installation to a vertical installation.

[0006]

An image forming apparatus according to the present invention comprises scanning means for optically reading and scanning a document placed on a document table by moving the document along the document table. Detecting means for detecting the size of the placed document and the direction corresponding to the moving direction of the scanning means, a plurality of sizes of paper, and storages for storing papers of the same size but different in the take-out direction. Means, designating means for designating one of a plurality of sizes of paper stored in the storage means, when the size of the paper specified by the specification means and the document are the same and the orientations are different, Regardless of the designation by the designation means, a sheet having the same orientation as the direction of the document detected by the detection means is taken out from the storage means, and the taken out sheet is read by the scanning means. And it is configured to image the procedure from which the image forming unit for forming an image.

An image forming apparatus according to the present invention includes a scanning unit for optically reading and scanning a document placed on a document table by moving the document along the document table, and a scanning unit for scanning a document placed on the document table. Detecting means for detecting the size and the direction corresponding to the moving direction of the scanning means, paper of a plurality of sizes, and storing means for storing sheets of the same size as these papers and having different take-out directions, respectively, Designation means for designating one of a plurality of stored sheets of paper; when the size of the paper designated by the designation means and the original are the same and the orientations are different, the designation means Regardless, the paper having the same orientation as the direction of the original document detected by the detection means is taken out of the storage means, and the image read by the scanning means on the taken out paper is image-formed. When the first image forming unit, the size of the original detected by the size and the detection means of the specified sheet by said specifying means for are different, taken out sheet designated by the designation means from said storage means,
A second image forming means for forming an image on the sheet taken out by the scanning means is provided.

An image forming apparatus according to the present invention includes a scanning unit for optically reading and scanning an original placed on a platen by moving the original along the platen, and a scanning unit for scanning the original placed on the platen. First detecting means for detecting the size and the direction corresponding to the moving direction of the scanning means, a plurality of sheets of paper, and a plurality of storing means for storing sheets of the same size but different in the take-out direction, respectively Designation means for designating one of the plurality of storage means, second detection means for detecting the size and orientation of the paper stored in the storage means designated by the designation means,
And referring to the detection result by the second detecting means, when the size of the paper stored in the storing means and the original are the same and the directions are different, regardless of the designation by the specifying means, It is constituted by a selection unit that selects a storage unit that stores sheets of paper in the same direction as the direction of the document detected by the detection unit.

An image forming apparatus according to the present invention includes a scanning unit for optically reading and scanning a document placed on a document table by moving the document along the document table. First detecting means for detecting the size and the direction corresponding to the moving direction of the scanning means, a plurality of sheets of paper, and a plurality of storing means for storing sheets of the same size but different in the take-out direction, respectively Designation means for designating one of the plurality of storage means, second detection means for detecting the size and orientation of the paper stored in the storage means designated by the designation means,
And referring to the detection result by the second detecting means, when the size of the paper stored in the storing means and the original are the same and the directions are different, regardless of the designation by the specifying means, A first selection unit that selects a storage unit that stores a sheet of paper in the same direction as the direction of the document detected by the detection unit; and a storage unit that refers to a detection result obtained by the first and second detection units. And a second selecting means for selecting the storing means specified by the specifying means when the size of the paper stored in the document and the size of the document are different.

[0010] An image forming apparatus according to the present invention comprises: scanning means for optically reading and scanning a document placed on a document table by moving the document along the document table; and scanning means for scanning the document placed on the document table. First detecting means for detecting the size and the direction corresponding to the moving direction of the scanning means, a plurality of sheets of paper, and a plurality of storing means for storing sheets of the same size but different in the take-out direction, respectively Designation means for designating one of the plurality of storage means, second detection means for detecting the size and orientation of the paper stored in the storage means designated by the designation means,
And referring to the detection result by the second detecting means, when the size of the paper stored in the storing means and the size of the document are the same and the directions are different, the document detected by the detecting means is detected. If there is a storage unit that stores the paper in the same direction as the direction, the storage unit that stores the paper in the same direction as the direction of the document detected by the detection unit is selected regardless of the specification by the specification unit. With reference to the detection result by the selection means and the first and second detection means,
When the paper stored in the storage unit and the document have the same size and different orientations, there is a storage unit that stores paper in the same direction as the direction of the document detected by the detection unit. If not, a display means for displaying a warning is provided.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the appearance of an image forming apparatus unit A to which the image forming apparatus of the present invention is applied, and FIG. 2 schematically shows the internal structure thereof.

The image forming apparatus unit A includes an electrophotographic copying apparatus 1 as an image forming apparatus, and a multi-cassette feeder 2 serving as a sheet feeding apparatus on which the electrophotographic copying apparatus 1 is mounted.

As shown in FIG. 1, on an upper surface side of an apparatus main body 3 of the electrophotographic copying apparatus 1, a document table 4 as a document table is provided.
A document scale 4a serving as a document placement reference is disposed along the left end of the document table 4, and an operation panel 5 is disposed along the front edge.
A document pressing cover 6 is rotatably attached to the rear edge of the upper surface so as to press the document D placed on the document table 4.

A manual guide 7 is provided on the right side of the apparatus body 3.
Below this, a cassette mounting portion 8 for mounting an optional paper feed cassette is provided. A copy receiver 9 is mounted on the left side of the apparatus main body 3.

The multi-cassette feeder 2 comprises a lower unit 2A and an upper unit 2B. The lower unit 2A has first to third drawers which can be pulled out to the front side.
Paper feed cassettes 15, 16 and 17 are incorporated. On the right side of the lower unit 2A, a lower side cover 18 for maintenance is provided.
On the right side of B, the upper side cover 19 for maintenance
Is provided. First to third paper feed cassettes 1
5, 16 and 17 can be taken out of the main body of the electrophotographic copying apparatus 1 by a service person.

The image forming means 12 has the following configuration. That is, as shown in FIG. 2, a photosensitive drum 2 as an image carrier
5 is provided rotatably.

Around the photosensitive drum 25, along a rotation direction (direction of an arrow), a charging device 26, an LED erasing array 27, a developing device 28, a transfer device 29, a peeling device 30, a cleaning device 31, The static eliminators 32 are sequentially arranged. Further, an optical system movable exposure device 33 for exposing image information of the document D set on the document table 4 is provided between the LED erasing array 27 and the developing device 28 in the upper portion of the apparatus main body 3. Have been.

The exposure device 33 includes a fluorescent lamp 34, mirrors 35, 36, 37, 38, 39, 40, and an imaging lens 4.
1. The scanning system 11 includes a fluorescent lamp 34, a first carriage 42 on which mirrors 35, 36 and 37 are mounted, and a second carriage 43 on which mirrors 38 and 39 are mounted. The scanning system 11 is adapted to move in the direction indicated by arrow a. First carriage 42
And the second carriage 43 move at a relative speed of 2: 1 when scanning the original.

As a result, the original D placed on the original table 4 is irradiated by the fluorescent lamp 34, and the reflected light is reflected by the mirrors 35, 36, 37, the imaging lens 41, and the mirror 3
Light is condensed on the photosensitive drum 25 via 8, 39, and 40.

As shown in FIG. 3, the longitudinal direction of the original D placed on the original table 4 with reference to the original scale 4a is parallel to the moving direction a of the scanning system 11 (see FIG. 3). 4), the case where the document D is placed in the direction perpendicular to the moving direction a of the scanning system 11 is referred to as the horizontal position, as shown in FIG. . A3 portrait (A3 portrait), A4 portrait (A4
Portrait), A4 landscape (A4 landscape), A5 portrait (A5 portrait),
Documents D corresponding to the states of A5 landscape (A5 landscape), B4 portrait (B4 portrait), B5 portrait (B5 portrait), and B5 landscape (B5 landscape) are placed.

As shown in FIG. 5, a plurality of detectors 111, 112, 113, 114, and 115 for detecting the size and placement direction of the document D are provided below the document table 4.
Is provided.

The detectors 111, 112, 113, 11
4 and 115, only the detector 111 is turned on when the A5 vertical document D is placed, and the detectors 111 and 112 are turned on when the B5 vertical document D is loaded, and the B5 horizontal document is placed. D
Is mounted, the detectors 113 and 114 are turned on, and A
When a 5-sided original D is placed, only the detector 113 is turned on, and when an A4-length original D is placed, the detector 111 is turned on.
The detectors 111, 112, 113, and 114 are turned on when 112 and 113 are turned on and the B4 portrait document D is placed, and the detectors 111 and 1 are placed when the A4 landscape document D is placed.
13, 114, and 115 are turned on, and when the original D of A3 length is placed, the detectors 111, 112, 113, 114,
115 is turned on.

As shown in FIG. 2, in the apparatus main body 3, paper P automatically fed from the paper cassette 46 mounted on the cassette mounting section 8 or the multi-cassette feeder 2, or a manual feed guide is provided. A paper transport path 48 is formed to guide the paper P manually fed from the printer 7 to the copy receiver 9 via the image transfer unit 47 between the transfer device 29 and the photosensitive drum 25.

A pair of registration rollers 49 as positioning means is disposed on the paper transport path 48 at an upstream side of the image transfer section 47, and at a downstream side of the image transfer section 47. The fixing device 50 and the discharge roller pair 51 are in a state of being disposed.

The above-described devices constituting the image forming means 12 are not directly related to the present invention, and therefore, detailed description is omitted. However, the image forming means 12 performs the image forming process in different cycles according to the sheet size.

Further, the downstream end of the paper feed path 52 for feeding the paper P fed from the multi-cassette feeder 2 is joined to the upstream side of the pair of registration rollers 49.

A paper detection switch 53 and a manual paper feed roller 54 are arranged between the manual feed guide 7 and the registration roller pair 49. A pickup roller 55 for taking out the paper P in the paper feed cassette 46, a paper feed roller 56, a separation roller 57, and the like are arranged corresponding to the cassette mounting section 8.

Next, the configuration of the multi-cassette feeder 2 will be described with reference to FIG. Lower unit 2A
Are formed in three stages, and as described above, the three sheet cassettes 15, 16 and 17 are housed in the entire surface so as to be freely drawn out.

Then, for example, the lower sheet feeding cassette 15
, A4-size paper P, B4-size paper P in the middle paper cassette 16, and A3 paper in the upper paper cassette 17.
Paper P of a size is accommodated.

Further, on the right side of the lower unit 2A and the upper unit 2B, there is formed a sheet feeding path 52 for conveying the sheet P taken out from each of the sheet feeding cassettes 15 to 17 upward. ing.

The trailing end 52a of the paper feed path 52 is formed at the leading end 63a of a paper feed path 63 formed to join the upstream side of the paper feed path 48 formed in the electrophotographic copying apparatus 1.
Connected.

In the vicinity of the mounting position of the lower paper cassette 15, a pickup roller 64 and a paper feed roller 6 are provided.
5, a separation roller 66, an elevator 67, a paper size detection unit 68, and the like.

A pickup roller 69, a paper feed roller 70, a separation roller 71, an elevator 72, a paper size detection unit 73, and the like are arranged near the mounting position of the middle paper feed cassette 16.

A pickup roller 74, a paper supply roller 75, a separation roller 76, an elevator 77, a paper size detection unit 78, and the like are arranged near the mounting position of the upper paper supply cassette 17.

The paper size detectors 68, 73, 78
Have the same configurations as the claw portion 58 of the paper feed cassette 46 and the switch portion 59 of the cassette insertion portion 8, respectively. These paper size detectors 68, 73, and 78 detect the size and orientation of the paper stored in each of the cassettes 15, 16, and 17.

The paper feed path 52 is formed between mutually facing surfaces of a plurality of guide plates 79. And
In the upstream part of the paper feed path 52, the lower paper feed cassette 15
A registration roller pair 80 is provided as a positioning and transporting unit for positioning and transporting the paper P taken out of the printer. In the middle part of the paper feed path 52, the paper P taken out of the middle paper cassette 16 is aligned and carried, and the paper P taken out of the lower paper cassette 15 is carried out. A registration roller pair 81 is provided as a dual-purpose means. Further, in the downstream portion of the paper feed conveyance path 52, alignment and conveyance of the paper P taken out from the upper paper feed cassette 17, the middle paper feed cassette 16, and the lower paper feed cassette 15
A pair of registration rollers 82 is arranged as alignment transporting means for transporting the paper P taken out of the printer.

The direction of the sheet P set in the sheet cassettes 15, 16, 17 or the sheet cassette 46 is as follows.
The case where the longitudinal direction of the paper P is parallel to the transport direction of the paper P corresponds to the vertically placed document D, and the case where the longitudinal direction of the paper P is orthogonal to the transport direction of the paper P Corresponds to the original D placed horizontally.

FIG. 6 shows the operation panel 5.
As shown in FIG. 6, the operation panel 5 includes a numeric keypad 91, a copy key 92, a status display section 93, a liquid crystal display section 94, an automatic document size detection mode key 95, a paper size key 96, a density display section 97, and a density setting key 98. , And a magnification setting key 99.

The ten keys 91 are used to set the number of originals and the number of copies. The copy key 92 is for instructing the start of copying. The status display section 93 displays the position where the paper jam has occurred in the event of a paper jam or the like.

The liquid crystal display section 94 displays the number of documents and the number of copies, displays an error message, and provides various operation guidance. The liquid crystal display section 94 includes:
A touch panel is provided so that various operation instructions such as input of the selection keys can be input.

The automatic document size detection mode key 95 is used to turn off the automatic document size detection mode which is turned on in an initial state such as when the power is turned on, and to turn on the automatic document detection mode which is turned off. .

The paper size key 96 is used to set the size and direction of the paper P. The size and direction of the paper P according to the original detected by the automatic original size detection or the paper P selected by the user. A paper display 96a is provided for lighting the display.

The density display section 97 displays the copy density set by the density setting key 98. A magnification setting key 99 is for setting a copy magnification.

Next, the control circuit will be described with reference to the block diagram shown in FIG. That is, a main control unit 101 for controlling the entire copying machine is provided. The main control unit 101 includes an operation panel 5 for instructing various operations, a copying unit 102 for performing a copying operation, a memory 103 storing a control program and various data, and the detector 111. , 112, 113, 114, and 115 are connected to a document size detection unit 104 that detects the size and direction of the document based on detection signals.

The copying section 102 has a moving mechanism 102a for moving the internal scanning system 11 such as the first carriage 42 in the moving direction a. Next, the copying operation in the above configuration will be described with reference to the flowchart shown in FIG.

First, during standby, the main controller 101 determines that the automatic document size detection mode is on (ST1).
In this state, the A4 size document D is set vertically on the document table 4 as shown in FIG. 3, and the document pressing cover 6 is closed. Then, the detectors 111, 112, and 113 are turned on, and a signal indicating A4 portrait is supplied from the document size detection unit 104 to the main control unit 101 (ST2). Thereby, the main control unit 101 determines the placement of the A4 portrait document D,
The paper cassette (46, 60, 61, 62) that stores the paper P corresponding to the determined A4 portrait is selected (S
T3), paper indicator 96a of operation panel 5 (A4-R)
Is lit (ST4).

Based on this display, when the copy key 92 is turned on, the main control unit 101 uses the copying unit 102 to
The read image of the document D on the platen 4 is converted to the selected A4
-Copy to paper P corresponding to R.

When the original D is replaced in the display state of step 4 (ST5), the process returns to step 2. Further, when the user enters the A4 landscape (A4) paper size key 96 in the display state of step 4 (ST6), the main control unit 101 determines the size of the paper P and the paper size based on the detection result of the document D. It is determined that the size specified by the key 96 matches (ST7), and the selection of the paper P (by APS) in step 3 described above is maintained (A4 portrait paper selection) (ST8).

Based on this state, when the copy key 92 is turned on, the main control unit 101 uses the copying unit 102 to
The read image of the document D on the document table 4 is copied onto a sheet P corresponding to A4-R in which the above selection is maintained.

When the original D is exchanged in the state where the selection of the paper P in the step 8 is maintained (ST5), the process returns to the step 2. In the display state of step 4, when the paper size key 96 (B5 landscape: B5) having a different size is inserted (ST6), the main control unit 101 determines the size of the paper P and the paper size based on the detection result of the document D. It is determined that the size specified by the key 96 does not match (ST7), the automatic document size detection mode is turned off (ST9), and the paper P corresponding to the size and direction specified by the paper size key 96 is stored. Paper feed cassette (46, 60, 61, 62) is selected (ST1).
0) The paper display 96a (B5) of the operation panel 5 is lit (ST11).

Based on this display, when the copy key 92 is turned on, the main control unit 101 uses the copying unit 102 to
The read image of the document D on the platen 4 is transferred to the selected B5
Is copied on paper P corresponding to.

In step 1, when the paper size key 96 is turned on and the main control unit 101 determines that the automatic document size detection mode is turned off,
Proceed to step 9 above.

A sheet P having the same size as the selected sheet P is loaded in the sheet cassette (46, 60, 61, 6).
When it is not set to 2), the main control unit 101 displays a guidance to the effect that "paper of a desired size is not set" on the liquid crystal display unit 94.

When there is a sheet P of the same size as the selected sheet P, but the sheet P in the selected direction is not set, the main control unit 101 issues a message “Please change the direction of the original”. A guidance to that effect is displayed on the liquid crystal display unit 94.

When copying on paper of the same size as the document and in a different direction, that is, on a paper placed horizontally for portrait orientation and vertically placed for landscape orientation, the automatic document size detection mode is turned off. To make a copy.

In the above-described example, the processing when the A4 size landscape paper is erroneously selected for the A4 size portrait document is described. However, the present invention is not limited to this. The same operation can be performed when an A4 size portrait paper is erroneously selected for a document.

The same can be applied to the case of B5 size, B4 size, etc. size. As described above, when the paper size based on the automatic document size detection mode matches the paper size specified by the paper size key (user), the paper orientation and paper size key based on the automatic document size detection mode are used. Even if the paper orientation specified by does not match, the paper size and orientation based on the automatic document size detection mode are set with priority, and the paper size based on the automatic document size detection mode is When the paper size specified by the paper size key (user) does not match, the automatic document size detection mode is turned off, and the paper size and orientation specified by the user are set with priority. It is.

As a result, if the size of the original is A4, A5,
For documents that can be placed both vertically and horizontally, such as B5, the document size and direction are detected by automatic document size detection, and then the document is detected by the user in the automatic document size detection mode. When you specify paper of the same size and different direction as the size of the paper, change the paper orientation from portrait to landscape,
Alternatively, it is possible to prevent erroneous copying due to changing from horizontal to vertical.

[0059]

As described above in detail, according to the present invention, after detecting the size and direction of the original by the automatic original size detection, the user erroneously changes the orientation of the paper from portrait to landscape, or It is possible to provide an image forming apparatus and an image forming method capable of reducing erroneous image formation due to changing from a horizontal installation to a vertical installation.

[Brief description of the drawings]

FIG. 1 is an external view showing a configuration of a copying machine according to an embodiment of the present invention.

FIG. 2 is a sectional view showing an internal configuration of the copying machine.

FIG. 3 is a view for explaining how to vertically place a document.

FIG. 4 is a view for explaining horizontal placement of a document.

FIG. 5 is a diagram illustrating a relationship between a document and a detector of the automatic document size detection device.

FIG. 6 is a front view showing an operation panel of the copying machine.

FIG. 7 is a block diagram showing the overall configuration of the copying machine.

FIG. 8 is a flowchart for explaining a main part of a copying operation.

[Explanation of symbols]

 D: Document P: Paper 4: Document table 5: Operation panel 46, 60, 61, 62: Paper cassette 94: Liquid crystal display 95: Automatic document size detection mode key 96: Paper size setting key 96a: Paper display 101 ... Main control unit 104 ... Document size detection unit 111,112,113,114,115 ... Detector

Claims (7)

[Claims] A scanning unit that optically reads and scans a document placed on a platen by moving the document along the platen; a size of the document placed on the platen; Detecting means for detecting the direction corresponding to the moving direction of the means, storing means for storing sheets of a plurality of sizes, and sheets of the same size as these sheets and having different take-out directions, respectively; Means for designating one of a plurality of sizes of paper, and when the size of the paper designated by the designating means is different from that of the original, regardless of the designation by the designating means. An image form for taking out a sheet of the same orientation as the direction of the original document detected by the detecting means from the storage means, and forming an image read by the scanning means on the taken-out paper. An image forming apparatus characterized by including the means. A scanning unit that optically reads and scans the original placed on the original table by moving the original along the original table; a size of the original placed on the original table; Detecting means for detecting the direction corresponding to the moving direction of the means, storing means for storing sheets of a plurality of sizes, and sheets of the same size as these sheets and having different take-out directions, respectively; Means for designating one of a plurality of sizes of paper, and when the size of the paper designated by the designating means is different from that of the original, regardless of the designation by the designating means. Take out the paper of the same orientation as the direction of the original document detected by the detection means from the storage means,
A first image forming unit for forming an image on the extracted sheet by the scanning unit, and a size of the sheet specified by the specifying unit and a size of the document detected by the detecting unit are different from each other A second image forming means for taking out the paper designated by the designation means from the storage means and forming an image on the taken out paper by the scanning means. Image forming apparatus. Scanning means for optically reading and scanning a document placed on a platen by moving the document along the platen; size of the document placed on the platen; First detecting means for detecting a direction corresponding to a moving direction of the means, a plurality of sheets, and a plurality of storing means for respectively storing sheets of the same size as these sheets and having different take-out directions; Designating means for designating one of the storing means, a second detecting means for detecting the size and orientation of the sheet stored in the storing means designated by the designating means, With reference to the detection result of the detecting means, when the paper stored in the storing means and the document have the same size and different directions, the detecting means Yo An image forming apparatus comprising the paper of detected original orientation and same direction is provided with a selecting means for selecting the storage means is housed. 4. A scanning means for optically reading and scanning a document placed on a platen by moving the document along the platen; a size of the document placed on the platen; First detecting means for detecting a direction corresponding to a moving direction of the means, a plurality of sheets, and a plurality of storing means for respectively storing sheets of the same size as these sheets and having different take-out directions; Designating means for designating one of the storing means, a second detecting means for detecting the size and orientation of the sheet stored in the storing means designated by the designating means, With reference to the detection result of the detecting means, when the paper stored in the storing means and the document have the same size and different directions, the detecting means Yo A first selection unit that selects a storage unit that stores a sheet of paper in the same direction as the direction of the detected original; and a storage unit that stores the paper in the storage unit with reference to a detection result obtained by the first and second detection units. And a second selecting means for selecting the storage means designated by the designation means when the size of the paper sheet and the size of the document are different. 5. Scanning means for optically reading and scanning a document placed on a platen by moving the document along the platen; size of the document placed on the platen; First detecting means for detecting a direction corresponding to a moving direction of the means, a plurality of sheets, and a plurality of storing means for respectively storing sheets of the same size as these sheets and having different take-out directions; Designating means for designating one of the storing means, a second detecting means for detecting the size and orientation of the sheet stored in the storing means designated by the designating means, Referring to the detection result of the detecting means, when the size of the paper stored in the storing means and the original are the same and the directions are different, the orientation of the original detected by the detecting means is the same as that of the original. Direction Selecting means for selecting a storing means storing a sheet of paper in the same direction as the direction of the original document detected by the detecting means, regardless of the designation by the specifying means, With reference to the detection results by the first and second detection means, when the size of the paper stored in the storage means and the original are the same and the directions are different, the detection is performed by the detection means. An image forming apparatus comprising: a display unit that displays a warning when there is no storage unit that stores a sheet in the same direction as the direction of a document. 6. A step of detecting a size and an orientation of a document placed on a platen, and selecting one of a plurality of size sheets and a sheet of the same size but different in the take-out direction. The step of specifying, and when the specified paper and the original have the same size and different orientations, take out the paper in the same orientation as the detected original regardless of the specification, and take out the paper. Forming an image on a sheet of paper. 7. A step of detecting the size and orientation of a document placed on a platen, and selecting one of papers of a plurality of sizes and papers having the same size as these papers but having different take-out directions. The step of specifying, and when the specified paper and the original have the same size and different orientations, take out the paper in the same orientation as the detected original regardless of the specification, and take out the paper. Forming an image on the specified paper, and when the size of the specified paper is different from that of the original, take out the paper in the same orientation as the specified original, and place the image on the taken-out paper. Forming an image; and an image forming method.