JP3400970B2 - Image forming device - Google Patents

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 digital copying machine for reading an original image and copying the read image on a sheet.

[0002]

2. Description of the Related Art Generally, an original document conveyed by an automatic document feeder (ADF: automatic document feeder) or an original document placed on an original document table (reading glass surface) is read by a scanner unit, and the read original image is read. A digital copying machine is put into practical use, which is stored in a page memory, and the stored image is used to sequentially copy onto a sheet by a printer unit to obtain a sheet for the above-mentioned original and stapling the obtained sheet. ing.

The stapling process is a stapling process performed by a stapler provided in a sorter (finisher), and is a process that is not performed during non-sorting.

In this digital copying machine, the reading of an original from the ADF by the scanner section is performed by the line sensor in the main scanning direction 1 without moving in the sub scanning direction.
The reading scan (registered in the line buffer) line by line is performed.

Further, the reading of the original placed on the original placing table by the above-mentioned scanner unit is performed such that the line sensor performs the reading scanning line by line in the main scanning direction while moving in the sub scanning direction. ing.

Further, in the printer section, an exposure image is formed on the photosensitive drum by the exposure means by the laser based on the image from the page memory, and the exposure image is visualized by the developing device and transferred onto the sheet. After that, by fixing, printing is performed.

Further, it is possible to perform various image processing on the input image data. For the finishing function or the like in which the orientation of the printed image is limited, the image data rotated in an appropriate orientation is exposed.

Input and printing of an image when the original is set on the reading glass surface with the side to be copied facing down will be described with reference to FIG.

That is, the image is, as shown in (a),
Input from the right side of the document to the left side. By registering this image data in the page memory as shown in (b), the image data is stored, the stored image data is read out, and then, as shown in (c), exposure is performed. , (D), the output is performed so that the binding margin of the staple is provided on the rear side in the sheet conveying direction.

As shown in FIGS. 2A to 2C, when an image is input using an ADF that reads a document while conveying it in the left direction, the document is copied as shown in FIG. When the original is set with the side to be printed facing up, the image is input from the left side to the right side of the original. When the image data is registered in the page memory while being read, the image data is in a state in which the original is mirror-processed (FIG. 3).
Therefore, it is necessary to perform mirror image processing before exposure.

Image input and printing when printing is performed without performing image processing when the through lead ADF is used will be described with reference to FIG.

That is, the image is, as shown in (a),
Input from the left side of the document to the right side. By registering this image data in the page memory as shown in (b), the registered image data is read out, and then, as shown in (c), exposure is performed. , (D), the output is performed so that the binding margin of the staple is provided on the rear side in the sheet conveying direction.

When the image data subjected to the mirror image processing is exposed, it is output so that the binding margin of the staple is formed at the front side in the sheet conveying direction. In this state, stapling cannot be performed normally, so the image data is rotated 180 degrees before exposure. (See FIG. 4) Input and printing of an image when image processing is performed and printing is performed when the through lead ADF is used will be described with reference to FIG.

That is, the image is, as shown in (a),
Input from the left side of the document to the right side. This image data is subjected to mirror image processing, and as shown in (b), the image data is registered by registering it in the page memory, and (c)
As shown in FIG.
A rotation process of 0 degree is performed, the image data subjected to the rotation process is read out, and then exposure is performed as shown in (d), so that the image is moved backward in the sheet conveying direction as shown in (e). It is output so that the margins for the staples are attached.

The rotation of the image data is realized by changing the calling position of the image in the page buffer. (See FIG. 5) The reading position of the image on the page memory during rotational printing will be described with reference to FIG.

That is, when there is no rotation, as shown in (a), it is read from the upper left on the page memory, and when it is rotated 90 degrees right, it is read from the lower left on the page memory as shown in (b), 90. In the case of a left rotation, as shown in (c), the upper right is read from the page memory, and in the case of 180 degrees, the lower right is read from the page memory as shown in (d). .

As described above, when the document from the ADF is read and printed, the above-described rotation process is involved. Therefore, the read image data for one page is registered in the page buffer, and this one page is registered. After that, the complete printing process is performed to print the image data.

However, even when the stapling is not used, since it is possible to print only after the image data for one page is registered in the page buffer for each original, it takes time. There is a drawback that it ends up.

[0019]

SUMMARY OF THE INVENTION According to the present invention, when an image is formed on a document conveyed by an automatic document feeder, the image formation time can be shortened when the image is formed without rotation processing. An object is to provide a forming device.

[0020]

SUMMARY OF THE INVENTION An image forming apparatus of the present invention comprises a conveying means for conveying an original, a reading means for reading image data of the original conveyed by the conveying means, and image data read by the reading means. A page memory for storing, and a first processing means for performing an editing process such as a rotation process on the image data stored in the page memory,
An image forming means for forming an image on an image forming medium based on the image data stored in the page memory, wherein one page of the original is printed when the editing processing by the first processing means is not performed. When the image data for one minute is stored in the page memory partway, the reading means for sequentially reading the image data for the original document previously stored in the page memory, and the image sequentially read by the reading means. Second processing means for forming an image on the image forming medium by the image forming means using the data.

The present invention comprises a conveying means for conveying an original,
Reading means for reading the image data of the document conveyed by the conveying means, page memory for storing the image data read by the reading means, and editing such as rotation processing for the image data stored in the page memory In the first processing means for performing processing and the image forming means for forming an image on the image forming medium based on the image data stored in the page memory, the editing processing by the first processing means is performed. If not performed, when the image data for one page of the original document is partially stored in the page memory, the reading means sequentially reads the image data for the original document previously stored in the page memory. , Using the image data sequentially read by this reading means,
When the second processing means for forming an image on the image forming medium by the image forming means and the editing processing by the first processing means are performed, all the image data of one page of the original document is stored in the page memory. A third process for editing the image data stored in the page memory
And the fourth processing means for forming an image on the image forming medium by the image forming means by using the image data edited by the third processing means.

The image forming apparatus of the present invention comprises a conveying means for conveying an original, a reading means for reading image data of the original conveyed by the conveying means, and a page memory for storing the image data read by the reading means. An image forming means for forming an image on an image forming medium based on the image data stored in the page memory; and a stapling process for a plurality of image forming mediums image-formed by the image forming means. When the staple processing by the first processing means is not performed, when the image data for one page of the document is partially stored in the page memory, the first processing means is provided. Reading means for sequentially reading the image data for the original document stored in the page memory, and image data sequentially read by the reading means. With, and a second processing means for forming an image on an image forming medium by the image forming means.

The image forming apparatus of the present invention comprises a conveying means for conveying an original, a reading means for reading image data of the original conveyed by the conveying means, and a page memory for storing the image data read by the reading means. An image forming means for forming an image on an image forming medium based on the image data stored in the page memory; and a stapling process for a plurality of image forming mediums image-formed by the image forming means. When the staple processing by the first processing means is not performed, when the image data for one page of the document is partially stored in the page memory, the first processing means is provided. Reading means for sequentially reading the image data for the original document stored in the page memory, and image data sequentially read by the reading means. When the stapling process is performed by the second processing unit for forming an image on the image forming medium by the image forming unit and the first processing unit by using the When the image data stored in the page memory is rotated, the third image processing unit performs a rotation process on the image data stored in the page memory, and the image data rotated by the third processing unit is used to generate the image. And a fourth processing unit for forming an image on the image forming medium by the forming unit.

The image forming apparatus of the present invention comprises a conveying means for conveying a document, a reading means for reading image data for each scanning line in the main scanning direction of the document conveyed in the sub-scanning direction by the conveying means, and It has a capacity for storing the image data for one page of the original and is read by the reading means 1
A page memory that sequentially stores image data for each scanning line, a rotating unit that rotates the image data for one page stored in the page memory, and image data stored in the page memory for each scanning line. An image forming an image on the image carrier by scanning exposure of the reading unit for reading and the image data of each scanning line read by the reading unit or the image data of each scanning line rotated by the rotating unit. Forming means, developing means for developing the image on the image carrier formed by the image forming means with toner, supplying means for supplying the image forming medium to the image carrier, and image carrier for the developing means. Transfer means for transferring the developed image onto the image forming medium supplied by the supplying means, and an image to which the developed image is transferred by the transfer means. A discharge unit for discharging the forming medium, and a stapling unit for performing a stapling process on the plurality of image forming mediums discharged by the discharging unit on the rear end side in the discharging direction of the image forming medium, When the stapling process is not selected, the image data read by the reading means for each scanning line is sequentially stored in the page memory, and the scanning data for each scanning line previously stored in the page memory is sequentially stored. The image data is read by the reading means, an image is formed on the image carrier by the image forming means on the basis of the read image data for each scanning line, and the image is developed by the developing means and then developed. First processing means for discharging the image by the discharging means after transferring the image to the image forming medium supplied by the supplying means; When the staple process is selected, the image data for each scanning line read by the reading means is sequentially stored in the page memory, and the image data for one page of the original is stored in the page memory. The image data for one page stored in the page memory is rotated by the rotating means, and the rotated 1
An image is formed on the image carrier by the image forming means based on the image data of each scanning line, the image is developed by the developing means, and the developed image is formed on the image forming medium supplied by the supplying means. After the transfer, it comprises a second processing means for discharging by the discharging means.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 6 is a sectional view showing the schematic arrangement of a digital copying machine 1 as an example of the image forming apparatus of the present invention.

As shown in FIG. 6, the digital copying machine 1 is provided with an apparatus body 2, and in the apparatus body 2, a scanner section 4 as a reading means and a printer section 6 functioning as an image forming means are provided. ing.

On the upper surface of the apparatus main body 2, there is provided an original placing table 8 made of transparent glass on which an object to be read, that is, an original D is placed. Further, an automatic document feeder 9 (hereinafter referred to as ADF) is arranged on the upper surface of the apparatus main body 2 as a conveying means for automatically feeding the document D onto the document table 8.

The document D placed on the document tray 9a of the ADF 9 is transported by a transport guide (not shown) and discharged onto the discharge tray 9c via the platen roller 9b. As a result, while the document D is being conveyed by the platen roller 9b, it is exposed and scanned by the exposure lamp 10 of the scanner unit 4 described later,
The image of the document D is read.

Documents D are set on the document tray 9a of the ADF 9 with the reading surface of the documents D facing upward, and the documents D are picked up one by one from the top document D.

The scanner section 4 provided in the apparatus main body 2
Is an exposure lamp 10 formed of, for example, a halogen lamp or the like as a light source for illuminating the document D conveyed by the ADF 9 or the document D placed on the document mounting table 8, and the reflected light from the document D is directed in a predetermined direction. Deflection first mirror 1
2 and these exposure lamps 10, the first mirror 12
Is the first carriage 1 disposed below the document table 8.
It is attached to 4.

The first carriage 14 is movably arranged in parallel with the original placing table 8 and reciprocated below the original placing table 8 by a scanner motor (driving motor) 16 via a toothed belt (not shown). It Scanner motor 16
Is composed of a stepping motor or the like.

A second carriage 18 which is movable in parallel with the document placing table 8 is disposed below the document placing table 8. The second carriage 18 sequentially deflects the reflected light from the document D deflected by the first mirror 12
And the third mirrors 20, 22 are mounted at right angles to each other. The rotation force from the scanner motor 16 is transmitted to the second carriage 18 by a toothed belt or the like that drives the first carriage 14, and the second carriage 18 is driven by the first carriage 14 and also moves with respect to the first carriage 14. , 1/2 speed is moved in parallel along the document table 8.

Below the document table 8, an imaging lens 24 that focuses the reflected light from the third mirror 20 on the second carriage 18 and the reflected light that is focused by the imaging lens 24 are received. A CCD sensor (line sensor) 26 for performing photoelectric conversion is provided. The imaging lens 24 is movably arranged in a plane including the optical axis of the light deflected by the third mirror 22 through a drive mechanism, and by moving itself, the reflected light has a desired magnification ( An image is formed in the main scanning direction). The CCD sensor 26 is a main CP described later.
The incident reflected light is photoelectrically converted in accordance with the image processing clock given from U, and an electric signal corresponding to the read document D is output. The magnification in the sub-scanning direction can be adjusted by changing the carrying speed of the ADF 9 or the moving speed of the first carriage 14.

When the document D conveyed by the ADF 9 is read, the irradiation position of the exposure lamp 10 is
It is fixed at the position shown in FIG. Also, the document placing table 8
When the document D placed on the document is read, the irradiation position of the exposure lamp 10 is moved from left to right along the document table 8.

On the other hand, the printer section 6 is provided with a laser exposure device 28 which functions as a latent image forming means. Laser light from the laser exposure device 28 scans the peripheral surface of the photosensitive drum 30 to form an electrostatic latent image on the peripheral surface of the photosensitive drum 30.

The printer unit 6 also has a rotatable photosensitive drum 30 as an image bearing member, which is disposed on the right side of the center of the apparatus main body 2. The peripheral surface of the photosensitive drum 30 is a laser exposure device 28. And a desired electrostatic latent image is formed. On the peripheral surface of the photosensitive drum 30, a charging charger 3 for charging the peripheral surface of the drum to a predetermined electric charge.
2. A developing unit 34 as a developing unit that supplies toner as a developer to the electrostatic latent image formed on the peripheral surface of the photoconductor drum 30 to develop it at a desired image density, and each cassette 4 described later.
The image forming medium fed from Nos. 8 and 50, that is, the separation paper 36 for separating the copy paper P from the photoconductor drum 30 is integrally provided, and the toner image formed on the photoconductor drum 30 is formed on the paper P. Transfer charger 3 to transfer to
8, a peeling claw 40 for peeling the copy sheet P from the peripheral surface of the photoconductor drum 30, a cleaning device 42 for cleaning the toner remaining on the peripheral surface of the photoconductor drum 30, and a static eliminator 44 for discharging the peripheral surface of the photoconductor drum 30. Are arranged in order.

At the lower part of the apparatus main body 2, there are respectively an upper cassette 48 and a lower cassette 5 which can be pulled out from the apparatus main body.
0 are arranged in a stacked state with each other and each cassette 48, 50
Copy sheets P of different sizes are loaded in the inside.
A manual feed tray 54 is provided on the side of the upper cassette 48.

Inside the apparatus main body 2, each cassette 48, 50
Is formed with a transfer path 56 extending through a transfer portion located between the photosensitive drum 30 and the transfer charger 38, and a fixing device 58 having a fixing lamp 58a is provided at the end of the transfer path 56. A discharge port 60 is formed in the upper portion of the fixing device 58.

In the vicinity of the upper cassette 48 and the lower cassette 50, there are provided a paper feed roller 62 and a separation roller 63 for taking out the sheets P one by one from the cassettes 48 and 50, respectively. Further, the transport path 56 is provided with a large number of paper feed roller pairs 64 for transporting the copy paper P taken out by the paper feed roller 62 and the separation roller 63 through the transport path 56.

A registration roller pair 66 is provided upstream of the photosensitive drum 30 in the transport path 56. The pair of registration rollers 66 corrects the inclination of the taken copy paper P, aligns the leading edge of the toner image on the photosensitive drum 30 with the leading edge of the copy paper P, and adjusts the movement speed of the peripheral surface of the photosensitive drum 30. The copy paper P is fed to the transfer unit at the same speed. Before the registration roller pair 66, that is, on the side of the paper feed roller 64, a pre-aligning sensor 68 for detecting the arrival of the copy paper P is provided.

The paper feed roller 62 allows the cassettes 48, 5
The copy paper sheets P taken out one by one from 0 are sent to the registration roller pair 66 by the paper feed roller pair 64. Then, the copy paper P is sent to the transfer unit after the leading edge of the copy paper P is aligned by the registration roller pair 66.

At the transfer portion, the developer image formed on the photosensitive drum 30, that is, the toner image is transferred onto the paper P by the transfer charger 38. The copy sheet P on which the toner image is transferred is peeled from the peripheral surface of the photoconductor drum 30 by the action of the peeling charger 36 and the peeling claw 40,
A conveyor belt (not shown) forming a part of the conveyor path 56
It is conveyed to the fixing device 58 via. Then, after the developer image is melted and fixed on the copy paper P by the fixing device 58, the copy paper P is discharged by the discharge roller pair 70 to the discharge port 6.
It is discharged through 0.

On the right side of the conveying path 56, an automatic double-sided device 74 for reversing the copy sheet P having passed through the fixing device 58 and sending it to the conveying path 56 again is provided.

A distribution lever (not shown) is provided at the discharge port 60, and the copy paper P discharged from the discharge port 60 is distributed to the discharge tray 72 in the main body 2 of the apparatus or to the external transport mechanism 76. It is supposed to be distributed.
The external transport mechanism 76 is installed in the upper cavity portion 78 of the paper discharge tray 72 in the apparatus main body 2 and transfers the copy paper P discharged from the discharge port 60 to the outside of the apparatus main body 2.

A finisher 80, which is an optional device, is mounted on the side of the apparatus main body 2. The copy sheet P (lower side is the printing surface) transported by the external transport mechanism 76 is supplied to the finisher 80.

The finisher 80 staples a part of the supplied document (paper P) having a partial structure by a stapler 81, and stores it on a tray 82. The tray 82 can move up and down, and descends based on the stack of documents.

Further, the copy sheet P supplied to the finisher 80 is conveyed by the reversing conveyance path 83 and is transferred to the tray 8
4 is ejected with the printing surface facing upward.

An operation panel (to be described later) for instructing various copying conditions such as copy magnification and the start of copying is provided on the upper front surface of the apparatus main body 2.

On this operation panel, as shown in FIG.
A liquid crystal display unit (LCD) 86 with a built-in touch key is provided for performing operation guidance and giving various instructions.

The liquid crystal display section 86, as shown in FIG.
It is composed of an operation guide display section 86a for displaying operation guide such as "READY" and a setting display section 76b for switching and displaying various setting contents. The setting display portion 86b is
As shown in FIG. 7, for example, a basic function (BASIC) setting screen is displayed as the initial screen, the selection state of the LCF 52 is displayed, the zoom is 100%, the document size is A4, and the photo image and the text image are automatically selected. , Non-sort, non-staple, and document-to-paper setting of 1: 1 are displayed, and icons for instructing editing, programming, setting changes, etc. are displayed.

In addition, the setting display section 86b has an edit (ED
There are setting screens for IT), programs (PROGRAM), and setting (SETTINGS). For example, on the setting screens of programs and settings, priority setting, job cancellation, job list display, priority setting change and addition can be made. It can be done.

The digital copying machine 1 may be used alone or as a network printer.

In this case, the digital copying machine 1 is connected to a personal computer (PC) (not shown), ... Or a server (not shown) via a local network (LAN) (not shown). ing.

The internal structure of the control circuit of the digital copying machine 1 will be described with reference to FIG.

The digital copying machine 1 is provided with a main controller 90 for controlling the whole. This main control unit 90
(Not shown) are CPs that control the operation of each
U (central processing uni
t), a ROM (read only memory) in which software for operating the digital copying machine 1 is stored.
y), a RAM (random access memory) in which image data and other operational data are temporarily stored
y) (S-RAM).

The main control section 90 includes the ADF 9, scanner section 4, printer section 6, finisher 80, operation panel 91, image processing section 92, page memory 93, HDD 9 and the like.
4 are connected via a bus 95. The image processing unit 92, the page memory 93, and the HDD 94 include an image bus 96.
Connected through.

The image processing section 92 processes the document image read by the scanner section 4, and the page memory 93 and HD.
The image data from the D94 is processed, and the processed image data is processed by the page memory 93, the printer unit 6, or the HD.
It is output to D94.

The image processing section 92 has a compression / expansion circuit (not shown), and the page memory 93 is created using this compression / expansion circuit.
The image data from the HDD 94 is compressed, and the image data from the HDD 94 is expanded.

The page memory 93 is for registering image data from the image processing section 92.

The HDD 94 is an external storage device represented by a hard disk in which various data are stored. For example, when copying a plurality of copies, an image obtained by compressing read images of a plurality of original images is registered, and at the time of printing, the compressed images are read and printed.

The main controller 90 has an input task and a print task managed for each job.

Next, in the above configuration, the ADF
Processing for performing non-sorting and non-rotating copy using 9 will be described with reference to the flowchart shown in FIG.

FIG. 9 is a flow chart when the page memory 93 selects a function in the copying machine 1 in which the number of copies is 1, non-sorting, and image rotation processing is not required.

That is, after receiving the copy start, the input task and the print task are executed. The parameters of the job to be executed are acquired for both the input task and the print task (ST1). The job parameter includes the number of print copies of the job and the selected function, and it is determined whether the sequential print processing is possible according to the selected function (ST2). In this case, since the sequential printing process is possible, the sequential printing process is performed.

In this sequential printing process, the cut-off printing is a process in which the image data already written in the page memory 93 is read and printed before the image for one page of the original is written in the page memory 93. By performing this cutoff printing, it is possible to shorten the copyout time.

(Input Task) 1. Since this is a sequential printing process, the document is cut off and read to a position where printing is possible (ST 3 to 5).

2. After reading to the cut-off printable position, the print task is notified that the page memory 93 can be read (ST6).

3. Read the remaining images (ST7,
8).

4-1. If there is a next manuscript (ST
9), the processing of 1 to 3 (ST3 to 8) is repeated.

4-2. If there is no next manuscript (ST
9) Then, the input process ends.

(Print Task) 1. Since this is a sequential printing process, it waits for a notification that the page memory 93 can be read from the input task (ST1).
0).

2. When the page memory readable notification is received, the image is read from the page memory 93 and printed (ST11).

3. When printing is completed, a write enable notification of the page memory 93 is issued to the input task (ST12).

4-1. If there is a next print image (S
The processes of T13) and 1 to 3 (ST10 to 12) are repeated.

4-2. If there is no next print image (S
T13), and the printing process ends.

Next, the processing in the case of performing staple copy using the ADF 9 will be described with reference to the flowchart shown in FIG.

FIG. 10 is a flow chart in the case where the digital copying machine 1 having one page memory 93 selects a function that requires rotational printing such as one copy and stapling.

That is, after receiving the copy start, the input task and the print task are executed. The parameters of the job to be executed are acquired for both the input task and the print task (ST21). The job parameter includes the number of print copies of the job and the selected function, and it is determined whether the sequential print processing is possible according to the selected function (ST2).
2). In this case, since the function that requires the rotation printing is selected, the sequential printing process cannot be performed. Therefore, the printing is performed by the completed printing process that does not perform the sequential printing.

In this completion printing process, since the image rotation process is performed, the image data corresponds to one page of the original document and the page memory 93.
It must exist above and cannot be used for cutoff printing.

(Input Task) 1. Since this is the completion printing process, one page of the original is read (ST23 to 25).

2. 1 if all pages of the manuscript are read
Rotation processing of 80 degrees is performed (ST26).

3. After this rotation processing, the print task is notified that the page memory 93 can be read (ST
27). At this time, when printing a plurality of copies, the image data is compressed and registered in the HDD 94.

3-1. If there is a next manuscript (ST2
8) and the processing of 1-2 (ST23-27) is repeated.

3-2. If there is no next manuscript (ST2
8) The input process ends.

(Print Task) 1. It waits for a notification that the page memory 93 can be read from the input task (ST30).

2. Upon receiving the readable notification of the page memory 93, the image is read from the page memory 93 and printed (ST31).

3. When printing is completed, a write enable notification of the page memory 93 is issued to the input task (ST32).

4-1. If there is a next print image (S
The process of T33) and 1 to 3 (ST30 to 32) is repeated.

4-2. If there is no next print image (S
T33), and the printing process ends.

When printing a plurality of copies, the HDD 9
The image data registered in 4 is read page by page, expanded on the page memory 93, and printed.

As described above, when the copy process is performed on the plurality of documents D placed on the tray 9a of the ADF 9, whether or not to staple some of the copies of the plurality of copies is determined. That is, depending on whether or not the rotation processing of the read image is performed, all the image data for one page of the document is registered in the page memory 93 before printing is possible, and the image for one page of the document is stored in the page memory 92. When the registration is performed up to the middle of the data, it is possible to perform printing (stop printing). As a result, the printing time can be shortened in the case of processing that does not involve rotation processing.

[0093]

As described above in detail, according to the present invention, when an image is formed on a document conveyed by an automatic document feeder, the image is formed without rotation processing.
An image forming apparatus capable of shortening the image forming time can be provided.

[Brief description of drawings]

FIG. 1 is a diagram for explaining image input and printing when a document is set with the side to be copied facing down on a reading glass surface.

FIG. 2 is a diagram for explaining a case of inputting an image using an ADF.

FIG. 3 is a diagram for explaining image input and printing when printing is performed without performing image processing when the through lead ADF is used.

FIG. 4 is a diagram for explaining image input and printing when image processing is performed and printing is performed when the through lead ADF is used.

FIG. 5 is a diagram for explaining an image reading position on a page memory during rotation printing.

FIG. 6 is a sectional view showing a schematic configuration of a digital copying machine.

FIG. 7 is a diagram showing a display example of a liquid crystal display unit.

FIG. 8 is a block diagram showing an internal configuration of a control circuit of the digital copying machine.

FIG. 9 is a flowchart for explaining processing when non-sorting and non-rotating copying are performed using the ADF.

FIG. 10 is a flowchart for explaining processing when performing staple copy that requires rotation printing using an ADF.

[Explanation of symbols]

1 ... Digital copier 4 ... Scanner section 6 ... Printer section D ... manuscript 9 ... ADF 9a ... tray 9b ... Platen roller 93 ... Page memory P: Copy paper

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI H04N 1/21 G03G 21/00 382 (58) Fields investigated (Int.Cl. ⁷ , DB name) H04N 1/387 G03G 15 / 36 G03G 21/00 384 H04N 1/00 H04N 1/04 107 H04N 1/21

Claims (5)

(57) [Claims] 1. A conveying unit for conveying an original document, a reading unit for reading image data of the original document conveyed by the conveying unit, a page memory for storing the image data read by the reading unit, and a page memory for storing the image data. First processing means for performing editing processing such as rotation processing on the stored image data, and image forming means for forming an image on an image forming medium based on the image data stored in the page memory. In the image forming apparatus, when the editing process by the first processing unit is not performed,
A reading unit that sequentially reads the image data of the original document stored in the page memory when the image data for one page of the original document is partially stored in the page memory, and the reading unit. An image forming apparatus comprising: a second processing unit that forms an image on an image forming medium by the image forming unit using image data that is sequentially read. 2. Conveying means for conveying an original, reading means for reading image data of the original conveyed by the conveying means, page memory for storing the image data read by the reading means, and storage for the page memory. First processing means for performing editing processing such as rotation processing on the stored image data, and image forming means for forming an image on an image forming medium based on the image data stored in the page memory. In the image forming apparatus, when the editing process by the first processing unit is not performed,
A reading unit that sequentially reads the image data of the original document stored in the page memory when the image data for one page of the original document is partially stored in the page memory, and the reading unit. When the image data is sequentially read, the second processing means for forming an image on the image forming medium by the image forming means, and the editing processing by the first processing means, one page of the original document is processed. Third processing means for performing an editing process on the image data stored in the page memory when all the image data of the above are stored in the page memory, and the image data edited by the third processing means. And a fourth processing unit for forming an image on the image forming medium by the image forming unit. 3. Conveying means for conveying an original, reading means for reading image data of the original conveyed by the conveying means, page memory for storing the image data read by the reading means, and storage for the page memory. Image forming means for forming an image on the image forming medium based on the image data being formed, and first processing means for stapling the plurality of image forming mediums image-formed by the image forming means, In the image forming apparatus including the above, when the stapling process is not performed by the first processing unit, when the page data of one page of the document is partially stored in the page memory, the page memory is preceded. The reading means for sequentially reading the image data for the original document stored in, and the image data sequentially read by the reading means are used. An image forming apparatus characterized by including a second processing means for forming an image on an image forming medium by the image forming means. 4. A conveyance means for conveying an original, a reading means for reading image data of the original conveyed by the conveyance means, a page memory for storing the image data read by the reading means, and a storage for the page memory. Image forming means for forming an image on the image forming medium based on the image data being formed, and first processing means for stapling the plurality of image forming mediums image-formed by the image forming means, In the image forming apparatus including the above, when the stapling process is not performed by the first processing unit, when the page data of one page of the document is partially stored in the page memory, the page memory is preceded. The reading means for sequentially reading the image data for the original document stored in, and the image data sequentially read by the reading means are used. When the second processing means for forming an image on the image forming medium by the image forming means and the stapling processing by the first processing means are performed, all the image data for one page of the original document is stored in the page memory. At this time, a third processing means for performing rotation processing on the image data stored in the page memory, and image data rotated by the third processing means are used by the image forming means. An image forming apparatus comprising: a fourth processing unit that forms an image on an image forming medium. 5. Conveying means for conveying an original document, reading means for reading image data for each scanning line in the main scanning direction of the original document conveyed in the sub-scanning direction by the conveying means, and one page of the original document. A page memory having a capacity for storing image data and sequentially storing image data of each scanning line read by the reading means, and rotation for rotating one page of image data stored in the page memory. Means, reading means for reading the image data stored in the page memory for each scanning line, image data for each scanning line read by the reading means, or one scanning line rotated by the rotating means. Image forming means for forming an image on the image carrier by scanning exposure for each image data, and an image on the image carrier formed by the image forming means. Developing means for developing with toner, supply means for supplying the image forming medium to the image carrier, and a developed image on the image carrier by the developing means on the image forming medium supplied by the supplying means. The transfer means for transferring, the discharging means for discharging the image forming medium on which the developed image is transferred by the transferring means, and the stapling process for the plurality of image forming mediums discharged by the discharging means In an image forming apparatus having a stapling unit that is provided on the rear end side in the medium discharge direction, when the stapling process is not selected, the image data of each scanning line read by the reading unit is stored in the page memory. The data is sequentially stored, and the image data for each scanning line previously stored in the page memory is read by the reading means and read. An image is formed on the image carrier by the image forming means based on the image data for each scanning line, the image is developed by the developing means, and the developed image is supplied to the image receiving means by the supplying means. A first processing unit for discharging by the discharging unit after transferring to the forming medium and an image data for each scanning line read by the reading unit to the page memory when the stapling process is selected. Image data for one page of the original is stored in this page memory, the image data for one page stored in this page memory is rotated by the rotating means, and each rotated one scanning line is stored. An image is formed on the image carrier by the image forming means based on the image data, the image is developed by the developing means, and the developed image is the image supplied by the supplying means. After transfer of the forming medium, the image forming apparatus characterized by comprising a second processing means for discharging by said discharging means.