JPH1152799A - Device and method for image forming - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform image formation in accordance with the size of a manually fed paper sheet by a simple operation, dispensing with an additional key on a control panel. SOLUTION: When a manual feeding switch 45 is turned ON, a controlling section 100 provides a manual feeding mode for performing full size image formation for the scan size of a first carriage 1 while turning on a mode display section 77a. And if a cassette selection key 75 and a magnification display key 82 on a control panel 70 are simultaneously depressed in succession, the section 100 sets a flag of a manual feeding half size mode for performing the scan size of the first carriage 1 by half size, while flickering the manual feeding display section 77a, and moreover, when an indication for a post card mode at the time of the manual half size mode is preliminarily stored in a RAM 102, the flag of the post card mode is also set, and the image is formed in accordance with the mode being set.

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 an electronic copier and an image forming method for forming an image on a sheet supplied from a paper feed cassette or a manual guide based on an image read from a document.

[0002]

2. Description of the Related Art In an electronic copying machine as an image forming apparatus, a document placed on a document glass (document mounting table) is irradiated by an exposure lamp, and reflected light scanned by exposure is guided to correspond to the document. A latent image is formed on a photosensitive drum, and the latent image is visualized by applying toner with a developing device, and the visualized toner image is transferred onto a sheet supplied using a transfer device. An image is formed.

[0003] Paper for forming an image may be supplied from a paper feed cassette or manually supplied from a manual feed guide. Here, when copying by manually feeding paper from a manual feed guide, an electronic copying machine in which the copying operation is controlled as described below is known. 1. Since the size of the manual paper is not known, the copy operation is always performed in full scan (maximum size). 2. The size of the manual feed paper is designated from a plurality of paper size keys prepared on the control panel (operating means), and a copy operation is performed using the size. 3. The copying operation for the first sheet is performed in the maximum size (full size) for the time being, the transit time of the registration rollers at that time is measured, and the copying operation is performed using the sheet size converted from the time as the sheet size for the second and subsequent sheets. .

However, if the copying operation is always performed in full size, it takes a long time to copy a small sheet, and the image formation and the sheet conveyance control are performed in full size. , The consumption of toner, the wear of the roller and the like become larger.

If a plurality of paper size keys are prepared, it is necessary to provide a plurality of keys on the control panel, resulting in an increase in cost and an increase in the number of options, leading to a complicated operation.

Further, when the copying operation of the first sheet is performed at the maximum size (full size), the first sheet is always full-scan, and the copying operation is slowed down by this amount. There is a possibility.

[0007]

As described above, when a copy is performed by manually feeding a sheet from a manual feed guide and a copy operation is always performed at full size, it takes time to copy a small sheet. Since image formation and paper transport control are performed at full size, fatigue of the photosensitive drum, consumption of toner, abrasion of the roller, etc. become greater, and when preparing a plurality of paper size keys,
It is necessary to provide a key for specifying the paper size on the control panel, which increases the cost and leads to more complicated operations due to an increase in the number of choices. There is a problem that a full scan is always performed and the copying operation is delayed by this amount, and there is a possibility that a paper jam may occur due to a paper length detection error.

Accordingly, an object of the present invention is to provide an image forming apparatus and an image forming method capable of forming an image in accordance with the size of a manual paper by a simple operation without requiring an additional key on a control panel. And

[0009]

According to the present invention, there is provided an image forming apparatus for forming an image on a sheet supplied from a sheet feeding cassette or a manual feed guide based on image data read by a reading means. Detecting means for detecting insertion of a sheet into the manual feed guide, and setting a first mode in which when the sheet is detected by the detecting means, paper is supplied from the manual feed guide and the reading range of the reading means is set to a full size. After the first setting means and the first mode are set by the first setting means, if necessary, paper is supplied from the manual feed guide and the reading range of the reading means is set to half size. A second setting means for setting the second mode, a second mode set by the second setting means,
Or an image forming means for forming an image in the first mode set by the first setting means.

The image forming apparatus according to the present invention is an image forming apparatus for forming an image on a sheet supplied from a paper feed cassette or a manual feed guide based on image data read by scanning a document by a reading means. Detecting means for detecting insertion of a sheet into the guide, and setting a first mode in which when the sheet is detected by the detecting means, a sheet is supplied from the manual feed guide and a scanning range of the reading means is set to a full size. 1 setting means, and the first setting means
After the mode is set, a second setting means for setting a second mode in which the paper is supplied from the manual feed guide and the scanning range of the reading means is set to half size, if necessary, And the image forming means for forming an image in the second mode set by the setting means or the first mode set by the first setting means.

According to the image forming apparatus of the present invention, there is provided reading means for scanning a document to read an image, and transferring a toner image corresponding to the image read by the reading means to a sheet supplied from a sheet feeding cassette or a manual feed guide. Transfer means, a fixing means for fixing the toner image of the sheet transferred by the transfer means on the sheet by heating and conveying while heating, a detecting means for detecting the insertion of the sheet into the manual feed guide, A first setting unit configured to set a first mode in which a sheet is supplied from the manual feed guide and a scanning range of the reading unit is set to a full size when a sheet is detected by the detection unit; After the first mode is set in the second setting step, a second mode for setting the second mode in which the paper is fed from the manual feed guide and the scanning range of the reading unit is set to a half size, if necessary. Storage means for storing instruction information for instructing execution of a postcard mode for forming an image on a postcard when the second mode is set by the second setting means; A third setting means for setting a postcard mode stored in the storage means when the second mode is set, and a temperature for heating by the fixing means when the third setting means is set. And control means for performing control to increase the temperature.

An image forming apparatus according to the present invention is an image forming apparatus for forming an image on a sheet supplied from a sheet feeding cassette or a manual feed guide based on image data read by a reading means. And a first mode in which when the sheet is detected by the first detecting means, a sheet is supplied from the manual feed guide and the reading range of the reading means is set to a full size. After the first setting means and the first mode are set by the first setting means, if necessary, paper is supplied from the manual feed guide and the reading range of the reading means is set to half size. A second setting means for setting the second mode, and a second mode set by the second setting means, or a first mode set by the first setting means, from the manual feed guide. A second detecting means for detecting the size of the fed paper; and a reading means set in the first mode or the second mode in accordance with the paper size detected by the second detecting means. And control means for changing and controlling the reading range.

An image forming apparatus according to the present invention is an image forming apparatus for forming an image on a sheet supplied from a sheet feeding cassette or a manual feed guide based on image data read by a reading unit in response to an operation from an operation unit. Detecting means for detecting insertion of a sheet into the manual feed guide, and a first mode for feeding a sheet from the manual feed guide and performing a reading range of the reading means in full size when the detecting means detects a sheet. First setting means for setting, and after the first mode is set by the first setting means, paper is supplied from the manual feed guide by the key designation on the operation means as required, and the reading is performed. And a second setting means for setting a second mode in which the reading range of the means is set to half size.

An image forming apparatus according to the present invention is an image forming apparatus for forming an image on a sheet supplied from a sheet feeding cassette or a manual feed guide based on image data read by a reading unit in response to an operation from an operation unit. Detecting means for detecting insertion of a sheet into the manual feed guide, and a first mode for feeding a sheet from the manual feed guide and performing a reading range of the reading means in full size when the detecting means detects a sheet. First setting means for setting, and after the first mode is set by the first setting means, paper is supplied from the manual feed guide by simultaneously pressing two keys on the operation means as necessary. And a second setting unit for setting a second mode in which the reading range of the reading unit is set to a half size.

An image forming method according to the present invention is an image forming method for forming an image on a sheet supplied from a paper feed cassette or a manual feed guide based on image data read by a reading means. When a paper insertion is detected, a first mode in which the paper is supplied from the manual feed guide and the reading range of the reading unit is set to a full size is set. After the first mode is set, if necessary, the first mode is set. ,
A second mode in which the paper is supplied from the manual feed guide and the reading range of the reading unit is set to half size is set, and an image is formed in the set first mode or the second mode. It is characterized by the following.

An image forming method according to the present invention is an image forming method for forming an image on a sheet supplied from a sheet feeding cassette or a manual feed guide based on image data read by scanning a document by a reading means, When detecting insertion of a sheet into the manual guide, a sheet is supplied from the manual guide and the scanning range of the reading unit is set to a full size.
After the first mode is set,
If necessary, a second mode in which paper is supplied from the manual feed guide and the scanning range of the reading unit is set to half size is set, and an image is formed in the set first mode or the second mode. It is characterized in that it is formed.

[0017]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 shows an internal configuration of a main body 11 of an electronic copying machine as an image forming apparatus according to the present invention. A photosensitive drum 28 is rotatably provided at a substantially central portion in the main body 11. Around the photosensitive drum 28, the charger 18, the LED erasing array 21, the developing device 3
1, a transfer charger 26, a peeling charger 27, a cleaner 24, and a static elimination lamp 19 are provided.

An exposure system 21 is provided in the upper part of the main body 11. The exposure system 21 includes an exposure lamp 5 as a light source, a mirror 2, a first carriage 1 on which a reflector 3 is installed, and a second carriage on which mirrors 7 and 8 for bending an optical path are installed.
It comprises a carriage 6, a lens block 15 for zooming, a mirror unit 9 provided with mirrors 10 and 11 for bending the optical path, and a mirror 6 for reflecting light from the mirror unit 9 to the photosensitive drum 28.

The first and second carriages 1 and 6 are connected to each other by a timing belt (not shown), and are moved by a carriage motor 103 described later.
Move in the same direction at half the speed of the first carriage 1. Thus, scanning can be performed so that the optical path length up to the zoom lens block 15 is constant. The zooming lens block 15 has a fixed focal length and is moved in the optical axis direction during zooming.

A paper feed cassette 37 is provided below the main body 11. The paper (image forming medium) P fed from the paper feed cassette 37 is moved along the paper transport path 32 by a cassette pickup roller 43, a cassette paper feed roller 42, a cassette separation roller 41, and a lower transport roller 47. Transported.

On the side of the main body 11, a manual feed guide 36 is provided. The paper (image forming medium) P manually inserted along the manual feed guide 36 is set to a manual feed mode described later by turning on a manual feed switch 45, and the manual feed pickup roller 40, the manual feed roller 39, and the manual separation pad 38 are provided. Paper transport path 3
2 is carried along.

The upper and lower registration rollers 49 and 50, the transfer charger 26, the peeling charger 27, the transport belt 30,
A fixing device 51 and a paper discharge roller pair 68 are provided.

A registration switch 48 is provided near the upper and lower registration rollers 49 and 50. When the registration switch 48 is turned on and off, the passage time of the paper supplied from the manual feed guide 36 through the registration rollers 49 and 50 is measured, and the paper size converted from the time is detected.

Further, an original glass 16 is provided on the upper surface of the main body 11. During normal copying, the original placed on the original glass 16 is scanned with light by the exposure system 21, and the reflected light is imaged on the photosensitive drum 28 whose surface is charged by the charger 18. An electrostatic latent image is formed. This electrostatic latent image is visualized by supplying a developer from the developing device 31. At this time, when the sheet P is supplied from the sheet cassette 37 or the manual feed guide 36, the sheet P is sent between the photosensitive drum 28 and the transfer charger 26 and
8 is transferred to the sheet P.

The paper P on which the image has been transferred is peeled off from the photosensitive drum 28 by the action of the peeling charger 27, and is fixed by the transport belt 30 to the fixing device 5 as fixing means.
1 and the image is fixed. The sheet P on which the image has been fixed is discharged via the pair of discharge rollers 68 and received by the discharge tray 20. Note that the discharge roller pair 68
A paper ejection switch 60 is provided immediately after the sheet
Is detected.

The fixing device 51 fixes the image by heating and pressing the sheet P conveyed by the heat roller 54 and the pressure roller 55 having the heater lamp 53 therein. In the case of double-sided copying, the sheet P is guided to the ADU 69 by switching the sheet discharge / ADU switching gate 67 to the ADU (reverse sheet feeding unit) 69, and the sheet P is turned upside down. 32, the image is transferred to the back side, fixed and discharged, and the
Receive at.

A control panel 70 for inputting various copy conditions, a copy start signal for starting a copy operation, and the like is provided on an upper front portion of the main body 11. FIG. 3 shows a control panel 70 including a print key 71, a numeric keypad 72, a clear / stop key 73,
Page continuous shooting setting key 74, cassette selection key 75, photo mode key 76, status display section 77, density setting key 78,
It comprises a preheat key 79, an interrupt key 80, a display section 81, a magnification display key 82, and a document size setting key section 85.

The print key 71 is for instructing the start of copying. The numeric keypad 72 is composed of keys from 0 to 9 for setting the number of documents and the number of copies.

The clear / stop key 73 is used to correct the number of copies or to stop the copying operation. The page continuous shooting setting key 74 is for setting page continuous shooting.

The cassette selection key 75 is for selecting a paper cassette. The photo mode key 76 is a mode used when copying a photograph or the like having gradation.

The status display section 77 is for guiding and displaying the selection state of the paper feed cassette, jamming of originals and paper, paper supply from the paper feed cassette or the manual feed guide, and the like. Further, the enlarged state display section 7 shown in FIG.
7, a manual feed mode display section 77a that is lit by an LED (not shown) in the manual feed mode is provided.

The density setting key 78 is for setting the copy density. When this key is pressed, the preheating key 79 enters a preheating (power saving) state, and all display lamps are turned off. To make another copy, press this button again.

Interrupt key 80, during continuous copying,
Use when you want to make an interrupt copy. Display section 81
Is for displaying the number of documents and the number of copies, displaying the copy magnification, and providing various operation guidance.

The magnification display key 82 is for displaying the copy magnification on the display section 81. Size setting key part 85
Sets the size of the original and the size of the paper. FIG.
Denotes a control circuit of the electronic copying machine, and a control unit 100 for controlling the whole is provided. The control unit 100 includes a control panel 70, a ROM 101 for storing control programs and the like, and a RAM 10 for storing various information.
2, a carriage motor 103 that drives the first carriage 1 and the second carriage 6 via a timing belt (not shown), and an image forming process unit 104 as an image forming unit are connected. The image forming process unit 104 corresponds to each unit of the internal configuration of the main body 11 described with reference to FIG.

The control unit 100 includes a manual feed switch 4
The manual feed mode is set by turning on 5, and the passage time of the paper supplied from the manual feed guide 36 through the registration rollers 49 and 50 is measured by turning on / off the registration switch 48, and the paper size converted from the time is detected.

Next, the operation of the electronic copying machine in such a configuration will be described with reference to the flowcharts of FIGS. First, in FIGS. 4 and 5, the control unit 1 turns on the power when the main switch (not shown) is turned on (ST ST).
1) If the covers of various electronic copying machines are not opened (ST2), the heater lamp 53 is turned on (ST).
3), initialization of a scanner motor, a lens motor, and a mirror motor (not shown) is started (ST4), and after the registration switch 48 and the paper discharge switch 60 are turned off (ST5, 6), the initialization is completed (ST7, ST7).
8) When the heat roller 54 reaches the fixing-possible temperature (S
T9, 10), a standby state is set.

In FIGS. 6 and 7, when a sheet is inserted from the manual feed guide 36 to perform manual copy in the standby state (ST11), the manual feed switch 45 is turned on and the manual feed paper is inserted. When the operation is detected, an LED (not shown) of the manual feed mode display section 77a is turned on to set the manual feed mode (ST12).

In step ST11, when the manual feed switch 45 is turned on and it is not detected that the manual feed paper has been inserted, the control unit 100 performs a normal copy operation of feeding paper from the paper feed cassette 37.

Here, in the present invention, A4 / LT /
B5 / Cassette selection key 75 on control panel 70 when copying on manual paper (such as a scan half size or smaller) with a small paper size such as a postcard size.
And the magnification display key 82 at the same time, the scan size of the first carriage 1 in the manual feed mode becomes
The size can be changed from a full size (hereinafter, referred to as a manual full size mode) to a half size (hereinafter, a manual half size mode).

That is, the control unit 100 controls the cassette selection key 75 and the magnification display key 8 on the control panel 70.
2 are pressed at the same time (ST13), the LED (not shown) of the manual feed mode display section 77a blinks (ST1).
4) Set the manual feed half-size mode flag (ST15).

As described above, the display of the manual feed mode display portion 77a indicating the manual feed mode is turned on (indicating the manual full size mode) and blinking (indicating the manual half size mode).
To make it possible to know what the scan size of the first carriage 1 is in the current manual feed mode.

In the above-described embodiment, the scan size of the first carriage 1 in the manual feed mode is changed from the full size to the half size by simultaneously pressing the cassette selection key 75 and the magnification display key 82. 2
A dedicated key may be provided as a half-size mode key for pushing or manually pressing half or more. In addition, the mode may be switched from manual feed half size mode to manual feed full size mode every time a key is pressed.

Also, by setting in advance in RAM 102 what the paper is when the manual feed half-size mode is designated, the control unit 100 can set the copy operation to normal plain paper or postcard when the manual feed half-size mode is designated. Control corresponding to the setting of thick paper (or thin paper such as secondary base paper).

In step ST16, the RAM 1
If the post-feed mode is set when the manual feed half-size mode is designated in 02 (ST16), the control unit 10
0 sets a postcard mode flag (ST1).
7). If the mode is not set in step ST16, the control section 100 controls the plain paper in the manual feed half-size mode.

Subsequently, when the print key 71 is depressed, the control unit 100 moves the first carriage 1 and the second carriage 6 to the home positions (ST19), and the exposure lamp 5
Is turned on (ST20), and the first carriage 1 and the second carriage 6 are advanced (ST21).

Here, the control section 100 checks whether or not the manual feed mode is set (ST22). If the manual feed mode is not set, the control section 100 performs a copy operation by feeding paper from the paper feed cassette 37 (ST23). If the manual feed mode is set, it is checked whether the manual feed half-size mode flag is set (ST24). If the manual feed half-size mode flag is not set,
The paper is fed manually, and the scan size of the first carriage 1 is set to the full size (ST25).

If the manual feed half-size mode flag is set in step ST24,
Performs manual feed, performs the scan size of the first carriage 1 at half size (ST26), and if the postcard mode flag is set at this time (S26).
T27), the fixing temperature by the heat roller 54 is raised to a predetermined temperature in the postcard mode (ST28).

When the copying operation for one sheet is completed, the control unit 1
In the step 00, the first carriage 1 and the second carriage 6 are stopped (ST29), and the remaining number of copies set and input from the control panel 70 is checked (ST30). Then, the second carriage 6 is moved backward to the home position (ST31), the exposure lamp 5 is turned off (ST32), and the process returns to step ST20.

If the remaining number is "0" at step ST30, control unit 100 turns off exposure lamp 5 (ST3).
3) The first carriage 1 and the second carriage 6 are moved to the copyable size display position (ST34), and the copy operation ends.

In the above-described embodiment, the scan size is controlled by setting the manual full size mode and the manual half size mode. However, when the first copy supplied from the manual guide is completed in the set mode. As described above, by measuring and detecting the size of the first sheet by turning on / off the registration switch, the scan size from the second sheet can be changed according to the measured and detected sheet size.

As described above, according to the embodiment of the present invention, the copy speed can be increased because the half size copy can be performed as compared with the case where the manual copy is always performed with the scan size full size. Consumption can be suppressed.

Further, compared with the case where the copy is performed at the measurement size of the first sheet from the second sheet and thereafter, the user is allowed to specify the paper size before copying, so that the first copy is not delayed, and the detection error is further reduced. Can be prevented.

Further, as compared with a case where a paper size key is prepared and a paper size is selected, an additional key is not required, so that a copying machine can be provided at a low cost, and since the number of keys is small, setting can be performed by a simple operation. be able to.

[0054]

As described in detail above, according to the present invention,
It is possible to provide an image forming apparatus and an image forming method capable of forming an image according to the size of a manual paper by a simple operation without requiring an additional key on a control panel.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a control circuit of an electronic copying machine according to the present invention.

FIG. 2 is a diagram showing an internal configuration of a main body of the electronic copying machine.

FIG. 3 is a diagram showing a configuration of a control panel.

FIG. 4 is a flowchart for explaining the operation of the electronic copying machine.

FIG. 5 is a flowchart for explaining the operation of the electronic copying machine.

FIG. 6 is a flowchart for explaining the operation of the electronic copying machine.

FIG. 7 is a flowchart for explaining the operation of the electronic copying machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... 1st carriage 6 ... 2nd carriage 11 ... Main body 45 ... Manual feed switch (detection means) 48 ... Registration switch 70 ... Control panel 71 ... Print key 75 ... Cassette selection key 77a ... Manual feed mode display part 82 ... Magnification display key 100 ... Control unit 101 ROM 102 RAM (storage means) 103 Carriage motor 104 Image forming process unit

Claims (8)

[Claims] An image forming apparatus for forming an image on a sheet supplied from a sheet feeding cassette or a manual feed guide based on image data read by a reading means, wherein a detecting means for detecting insertion of a sheet into the manual feed guide is provided. A first setting unit configured to set a first mode in which a sheet is supplied from the manual feed guide and a reading range of the reading unit is set to a full size when a sheet is detected by the detecting unit; After the first mode is set by the means, a second setting means for setting a second mode in which paper is supplied from the manual feed guide and the reading range of the reading means is set to a half size as necessary. And an image forming means for forming an image in the second mode set by the second setting means or the first mode set by the first setting means. Image forming apparatus. 2. An image forming apparatus for forming an image on a sheet supplied from a paper feed cassette or a manual feed guide based on image data read by scanning an original by a reading means, wherein the paper is inserted into the manual feed guide. Detecting means for detecting, and when the detecting means detects a sheet, a first setting means for setting a first mode in which a sheet is supplied from the manual feed guide and a scanning range of the reading means is set to a full size; After the first mode is set by the first setting means, if necessary, a second mode for setting the second mode in which the paper is supplied from the manual feed guide and the scanning range of the reading means is half-size is set. And an image forming unit that forms an image in the second mode set by the second setting unit or the first mode set by the first setting unit. An image forming apparatus comprising and. Reading means for scanning a document to read an image; transferring means for transferring a toner image corresponding to the image read by the reading means to a sheet supplied from a paper feed cassette or a manual feed guide; Fixing means for fixing the toner image of the sheet transferred by the transfer means on the sheet by heating and conveying the sheet under heating; detecting means for detecting insertion of the sheet into the manual feed guide; Upon detection, a first setting unit for setting a first mode in which the paper is supplied from the manual feed guide and the scanning range of the reading unit is set to a full size, and the first mode is set by the first setting unit. After the setting, if necessary, a second setting unit for setting a second mode in which a sheet is supplied from the manual feed guide and the scanning range of the reading unit is set to a half size, and A storage unit for storing instruction information for instructing execution of a postcard mode for forming an image on a postcard in advance when the second mode is set in the step; and a second mode being set by the second setting unit A third setting means for setting a postcard mode stored in the storage means, and a control for increasing the temperature heated by the fixing means to a predetermined temperature when the third setting means is set. An image forming apparatus comprising: a control unit. 4. An image forming apparatus for forming an image on a sheet supplied from a sheet feeding cassette or a manual feed guide based on image data read by a reading means, wherein a first sheet detecting means detects insertion of a sheet into the manual feed guide. Detecting means; and first setting means for setting a first mode in which the paper is supplied from the manual feed guide and the reading range of the reading means is set to a full size when paper is detected by the first detecting means. After the first mode is set by the first setting unit, a second mode in which the paper is supplied from the manual guide and the reading range of the reading unit is set to a half size is set as necessary. A second setting unit, and a size of a sheet supplied from the manual feed guide in the second mode set by the second setting unit or the first mode set by the first setting unit. The second to detect
According to the paper size detected by the second detecting means,
An image forming apparatus comprising: a control unit configured to change and control a reading range of the reading unit set in the first mode or the second mode. 5. An image forming apparatus for forming an image on a sheet supplied from a paper feed cassette or a manual feed guide based on image data read by a reading means in response to an operation from an operation means, the image forming apparatus comprising: Detecting means for detecting insertion of a sheet, and first setting for setting a first mode in which a sheet is supplied from the manual feed guide and a reading range of the reading means is set to a full size when a sheet is detected by the detecting means. Means, after the first mode is set by the first setting means, if necessary, a sheet is supplied from the manual feed guide by a key designation on the operation means to reduce the reading range of the reading means by half. An image forming apparatus comprising: a second setting unit that sets a second mode in which a size is set. 6. An image forming apparatus for forming an image on a sheet supplied from a paper feed cassette or a manual feed guide based on image data read by a reading means in response to an operation from an operation means. Detecting means for detecting insertion of a sheet, and first setting for setting a first mode in which a sheet is supplied from the manual feed guide and a reading range of the reading means is set to a full size when a sheet is detected by the detecting means. Means, after the first mode is set by the first setting means, if necessary, simultaneously press two keys on the operation means to supply paper from the manual feed guide and An image forming apparatus comprising: a second setting unit that sets a second mode in which a reading range is set to a half size. 7. An image forming method for forming an image on a sheet supplied from a sheet feeding cassette or a manual feed guide based on image data read by a reading means, wherein when a sheet is inserted into the manual feed guide is detected. Setting a first mode in which the paper is supplied from the manual feed guide and the reading range of the reading means is set to a full size, and after the first mode is set, the paper is supplied from the manual feed guide as necessary. To set a second mode in which the reading range of the reading unit is set to half size, and the set first mode is set.
An image forming method for forming an image in the second mode or the second mode. 8. An image forming method for forming an image on a sheet supplied from a sheet feeding cassette or a manual feed guide based on image data read by scanning a document by a reading means, comprising: When the insertion is detected, a first mode in which the paper is supplied from the manual feed guide and the scanning range of the reading unit is set to a full size is set. After the first mode is set, if necessary, A second mode in which paper is supplied from the manual feed guide and the scanning range of the reading unit is set to half size is set, and the set first mode is set.
An image forming method for forming an image in the second mode or the second mode.