JPH05132155A - Image forming device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an image forming apparatus capable of forming an image corresponding to a form of paper without error. [Arrangement] The operator sets sheets of paper P of a required size in the sheet feed cassette 12 in a stacked state in the vertical or horizontal direction, and the display content of the display surface 130 of the dial 13 is changed to that cassette 12.
The rotation operation is performed so as to match the form of the paper P set inside. In conjunction with this rotation operation, the protrusion 1 of the dial 13
The content 31 also matches the display content on the display surface 130.
When the operator mounts the set cassette 12 in the apparatus main body 10, the protrusion 131 on the rear surface side of the dial 13 presses the detection sensor 16. The detection sensor 16 includes the protrusion 13
The code information in which 1 is detected is sent to the control unit 14. Control unit 1
4 performs image formation control based on the sent code information and forms an image on the paper P.

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 which is applied to a copying machine, a laser printer or the like and has a paper feed cassette.

[0002]

2. Description of the Related Art An image forming apparatus of this type is provided with a plurality of paper feed cassettes which can be attached to and detached from the main body of the apparatus, and one paper feed cassette includes any one of A3, A4, B3, B4, etc. A plurality of sheets P of different sizes can be stacked in the vertical direction or the horizontal direction and set in advance.

However, since this paper feed cassette is made of an opaque member on its side surface and the like, there is a risk that a cassette having a size different from the size desired by the operator may be erroneously mounted in the apparatus main body. is there.

Therefore, in order to prevent this, a rotary display is provided on the front side of the paper feed cassette, and the form information (size, size, etc.) of the paper set in the cassette is provided on this display.
Direction, etc.) is displayed visually. The display contents of the display can be changed by rotating the display by an operator.

Further, in this image forming apparatus, the control section carries out image forming control such as carrying, enlarging and reducing the sheets in accordance with the form of the sheets stacked in the attached sheet feeding cassette. For this reason, a rotary type code indicator is provided on the back side of the paper feed cassette, and the code information indicating the form information of the sheets set in the cassette is indicated to the code indicator, and the code information is displayed. It is read by the detection sensor and sent to the control unit. This code indicator is
The instruction content can be changed by the rotation operation by the operator.

According to the image forming apparatus thus constructed, when the paper feed cassette is mounted in the main body of the apparatus, the code indicator is located in the vicinity of the detection sensor, and the detection sensor indicates the code information indicated by the code indicator. Is read and sent to the control unit.
The control unit performs image formation control based on the sent code information and forms an image on a sheet.

[0007]

However, since the setting operation of the display device and the code indicator is performed by separate operations, the respective displays shown by the display device and the code indicator are caused by an erroneous setting by the operator. The content and the instruction content may not match.

When the code indicator is set differently from the actual form information, the control unit performs wrong image forming control, while the display is set differently from the actual form information. In this case, the operator mistakes the cassette to be mounted.

Therefore, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an image forming apparatus capable of forming an image corresponding to the form of a sheet without error. ..

[0010]

In order to achieve the above object, the present invention has the following constitution.

According to a first aspect of the present invention, a removable paper feed cassette is provided, and image formation control is performed based on the form of the paper stacked in the paper feed cassette to be mounted, and an image is formed on the paper. In an image forming apparatus for forming, an image forming control is performed based on a display member that is provided in the cassette and displays a form of sheets stacked in the cassette based on a setting operation, and a form of the sheet displayed by the display member. It has a control part.

According to a second aspect of the present invention, a removable paper feed cassette is provided, image formation control is performed based on the form of the paper stacked in the paper feed cassette to be mounted, and an image is formed on the paper. In the image forming apparatus for forming, a display member which is provided in the cassette and displays the form of sheets stacked in the cassette on the basis of a setting operation, and an indicating means arranged on the display member so as to be different for each display content When,
It is characterized in that it has a reading means for reading the arrangement state of the instruction means as code information, and a control section for taking in the code information read by the reading means and performing image formation control.

[0013]

According to the invention described in claim 1, when the setting operation is performed on the display member, the display member displays the form of the sheets stacked in the cassette. The control unit controls the image formation based on the form of the paper displayed by the display member.

According to the second aspect of the present invention, when the setting operation is performed on the display member, the display member displays the form of the sheets stacked in the cassette. Since the indicating means is arranged on the display member so as to be different for each display content, the reading means reads the arrangement state of the indicating means as code information. The control unit controls the image formation based on the code information read by the reading unit.

[0015]

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

FIG. 1 is a sectional view showing the schematic arrangement of an image forming apparatus according to an embodiment of the present invention.

The apparatus comprises a plurality of sheet feeding cassettes 12 which can be mounted in the apparatus main body 10, and image forming control such as carrying, enlarging, reducing, etc. for each section of the apparatus, and the sheet feeding cassette 1
And a control unit 14 that forms an image on the paper P conveyed from inside 2.

In one paper feed cassette 12, A3, A
It is possible to stack a plurality of sheets P of any one size such as 4, B3, B4, etc. in the vertical direction or the horizontal direction and set them in advance.

The front side 12a of the paper feed cassette 12
A plurality of (three in this example) first to third dials 1
3a, 13b, 13c are provided. Each dial 13
Are used for each form information item. The first dial 13a is for displaying the size series of A and B, the second dial 13b is for displaying the size, and the third dial 13 is
c is for displaying the direction.

Each dial 13 has a cassette 1 on the front side.
A display surface 130 as a display member for displaying the form of the paper P set in the sheet 2 is formed, and the display surface 130 is provided on the back side.
Is provided with a protrusion 131 as an instruction means for indicating code information obtained by encoding the form information visually displayed.

The protrusion 131 is adapted to display the code information depending on the presence or absence thereof and the position where it is provided. For example, as shown in FIG. 2, the first dial 1
In the case of 3a, the protrusion 131 is provided for the A size, and the protrusion 131 is not provided for the B size. In the case of the second dial 13b, the protrusion 131 is provided at the left end if the size is A4 or B4, and is provided at the right end if the size is A3 or B3. In the case of the third dial 13c, the protrusion 131 is provided in the horizontal direction (R), and the protrusion 131 is not provided in the vertical direction.

Further, in the main body 10 of the apparatus, a protrusion 13 is provided.
A plurality of (four in this example) first to fourth detection sensors 16a, 16b, 16c, 1 as reading means for detecting 1
It is equipped with 6d. The detection sensor 16 has a protrusion 131.
Is detected, and the control unit 1 outputs 4-bit code information.
To send to 4. Further, the first to fourth detection sensors 16a to 16d include three dials 13a to 13c.
The protrusion 131 is provided at a position corresponding to the position of the protrusion 131. Each sensor 16 is coded as "1" when the switch is pressed by the protrusion 131 and "0" when the switch is not pressed. In the case of FIG. 2A, the first, second, and fourth sensors 16a, 16b, and 16d are pressed by the protrusion 131, so the code is "1101". Further, in the case of FIG. 2B, since only the second sensor 16b is pressed by the protrusion 131, the code is "010
It becomes "0". Further, in the case of FIG. 2C, the code is “1010” because the first and third sensors 16a and 16c are pressed by the protrusion 131.

Next, the operation of the image forming apparatus having the above-described structure will be described.

First, the operator sets paper P of a required size in the paper feed cassette 12 in a stacked state in the vertical or horizontal direction,
The dial 13 is rotated so that the display content on the display surface 130 matches the form of the paper P set in the cassette 12. In association with this rotation operation, the protrusion 132 of the dial 13 also has the content that matches the display content of the display surface 130.

Next, the cassette 1 set by the operator
When 2 is mounted in the apparatus main body 10, the protrusion 131 on the back surface side of the dial 13 presses the detection sensor 16. The detection sensor 16 uses the code information obtained by detecting the protrusion 131 as the control unit 1.
Send to 4.

The control unit 14 forms an image on the paper P without error by performing image formation control corresponding to the form of the paper P based on the sent code information.

According to the image forming apparatus of the above-described embodiment, the contents of the display on the display surface 130 and the contents of the instruction of the protrusion 131 match due to the setting operation of the dial 13 by the operator, so that the form of the paper P is changed. It is possible to provide an image forming apparatus capable of forming an image corresponding to the above without error.

The present invention is not limited to the above embodiment,
Various modifications can be made without departing from the spirit of the invention.
For example, the setting operation for the display member may be another operation such as a moving operation and a tilting operation.

[0029]

According to the present invention described in detail above, the following effects are exhibited.

According to the first aspect of the invention, since the image forming control is performed based on the form of the paper displayed by the display member by the setting operation, the image formation corresponding to the form of the paper can be performed without mistake. It is possible to provide an image forming apparatus that can perform the operations.

According to the second aspect of the present invention, since the disposing state of the indicating means is different depending on the form of the sheet to be displayed by the setting operation on the displaying member, the display content of the display member and the instruction content of the indicating means are different. Therefore, it is possible to provide an image forming apparatus capable of preventing the above-mentioned inconsistency and performing the image formation corresponding to the form of the sheet without mistake.

[Brief description of drawings]

FIG. 1 is a sectional view showing a schematic configuration of an image forming apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing an operation of a dial of the image forming apparatus shown in FIG.

[Explanation of reference numerals] 12 paper feed cassette 130 display surface (display member) 131 projection (instruction means) 14 control section 16 detection sensor (reading means) P paper

Claims (2)

[Claims] 1. An image forming apparatus comprising a detachable paper feed cassette, performing image formation control based on a form of paper stacked in the paper feed cassette to be mounted, and forming an image on the paper. A display member provided on the cassette for displaying the form of the sheets stacked in the cassette based on a setting operation, and a control unit for performing image formation control based on the form of the sheet displayed by the display member. An image forming apparatus characterized by. 2. An image forming apparatus comprising a detachable paper feed cassette, wherein image forming control is performed based on a form of paper stacked in the paper feed cassette to be mounted, and an image is formed on the paper. A display member that is provided in the cassette and displays the form of sheets stacked in the cassette based on a setting operation; an indicating unit that is arranged on the display member so as to be different for each display content; An image forming apparatus comprising: a reading unit that reads an arrangement state as code information; and a control unit that takes in the code information read by the reading unit and performs image formation control.