JPS61150939A - Recording device - Google Patents

Abstract

PURPOSE:To reduce the occupied area of a copying machine when it is used and to make possible to set the machine even on a narrow place, by making use of the upper cover plate of a feed cassette as a recorded paper receiving tray. CONSTITUTION:Owing to the rotation of a send-out roller 27, the top recording paper P1 on a paper place board 22 is carried out one by one, is placed and conveyed on a conveying belt 28, makes a U-turn by a curved guide board 29 and a conveying roller 30, and reaches a resist roller 12. The recording paper P1 is successively conveyed by the resist roller 12 interlocking with the operation of a light-sensitive body drum 3 and an optical system 2, and after performs recording process, that is copying, separating, and fixing, and is discharged out of the main body of copying machine owing to a paper discharge roller 16. The discharged copied paper P2 from the paper discharge roller 16 is placed on the upper face 23B of the upper cover 23 of a paper feed cassette 20, and slides along the inclined face and drops smoothly, and stops after the rear end of the recorded paper P2 touches a screen 23C.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is a system for stacking recording paper in a recording paper stacking section after the recording paper is fed from a paper feed center that stores the recording paper and is recorded by a recording means. The present invention relates to image recording apparatuses such as copying machines such as electrophotographic copying machines, electrostatic recording apparatuses, facsimile machines, computer output printers, and light printing machines.

[Conventional technology]

For convenience of explanation, the schematic configuration of recording paper conveyance of the various conventional recording apparatuses described above will be described with reference to FIG. 2, taking an electrophotographic copying machine as an example. In the copying machine shown in FIG. 2, reference numeral 1 denotes an original table glass on which a document to be copied is placed, and 2 an optical system consisting of an exposure lamp, a mirror, and a lens for exposing and scanning the document table.

Below that, there is a charged electrode 4 extending in the circumferential direction of the rotating photosensitive drum 3. Developing device5. A transfer electrode 69, a separation electrode 7, and a cleaning device 8 are provided to constitute an image forming process.

On the other hand, the recording paper conveyance system includes a paper feed cassette 10 that stores the recording paper P, a feed roller 11 . Registration roller 12. Guide plate 13, conveyor belt 14. Fixing device 15
．． It is composed of a paper ejection roller 16 and a paper ejection tray 17 on which recorded recording paper P is accumulated.

When the copy button of a copying machine with such a configuration is operated, the optical system 1
The image is exposed and scanned on the original document and is formed on the photoreceptor drum 3, and is visualized by the image forming apparatus [5]. On the other hand, the paper feed cassette 10
The recording paper P stored in the feed roller 11. It is fed from registration roller No. 12 and reaches the photosensitive drum 3.
After the image is transferred here, the image is fixed by the fixing device 15 via the conveyor belt 14, and is discharged to the outside of the copying machine body by the paper discharge roller 16, completing one cycle of copying. The paper ejection tray 17 is mounted so as to protrude from the copying machine main body, and is used to accumulate recorded recording sheets P to be ejected.

[Problem that the invention seeks to solve]

As described above, since the paper feed cassette 10 and the paper ejection tray 17 each protrude from both sides of the copying machine main body, the area occupied by the copying machine becomes large when the copying machine is used. In recent years, technology for making copying machines smaller and more compact has progressed, and there is a demand for small-sized copying machines that can be easily installed in corners of offices, stores, etc. However, even if the main body of the copying machine becomes smaller, if the paper feed cassette and paper ejection tray described above occupy a large space as in the past, it still takes up a lot of space, which poses a practical problem.

In addition, the paper output tray 17 right side and the paper feed cassette 10 are detachably attached to the outer surface of the copying machine body, and can be removed so as not to get in the way when the copying machine is not in use. It is time-consuming and there is a risk of forgetting to put it on.

Furthermore, the paper feed cassette 10 and the paper ejection tray 17 must be manufactured separately and separately attached to the main body of the copying machine, which increases costs.

The above has described conventional problems using an electrophotographic copying machine as an example, but similar problems also exist with various recording devices in which the paper feed section and stacking section are provided protruding from the main body. The present invention was discovered in view of the above-mentioned circumstances, and its first object is to provide a recording device that can reduce the installation area occupied by the device when the recording device is used. A second object is to provide a recording apparatus that can simplify the operation of separately installing a paper feeding section and a stacking section in the recording apparatus main body.

The present invention has a configuration in which a paper feeding section and a stacking section provided in a recording device are integrated, and the paper is fed from a paper feeding cassette that stores recording paper. This is achieved by a recording device that stacks recording sheets in a recording paper stacking section after recording from this, characterized in that the upper lid of the paper feed cassette serves as a discharge tray for recorded recording sheets. Ru.

〔Example〕

An embodiment of a recording apparatus according to the present invention is shown in FIG. 1st
The figure is used for an electrophotographic copying machine as an example of a recording device, and shows a schematic configuration diagram thereof.

Of course, the same reference numerals are given to the same structural parts as in FIG. 2.

In the figure, a paper feed cassette 20 is capable of storing a predetermined number of recording papers P in a stack. The paper feed cassette 20 has a housing 21. It is composed of a swingable recording paper mounting plate (intermediate plate) 22 degrees (openable and closable) and a lid 23, and is removably mounted on a paper feed table 24 of the copying machine. The bent portion at the left end of the mounting plate 22 is inserted into one slit of the housing 21 and becomes the center of swing.
The mounting plate 22 is made swingable and tiltable.

The recording paper PI is housed in the housing 21 and placed on the placement plate 22, and is moved up and down as the placement plate 1a swings.

A top lid 23 is hinged to the upper opening of the housing 21. The upper lid 23 is a dust-proof cover that covers the upper opening of the housing 21 of the paper feed cassette 20, and is hinged to the housing 21 through a hinge portion 23A and is rotatable. When inserting or removing the recording paper P into the housing 21, the upper cover 23 is rotated upward to open the opening of the housing 21. Up! 23
The opening/closing operation is performed by connecting the housing 21 and the upper lid 23 with a sliding rail instead of the rotation operation using the hinge part 23A described above, and pulling out the upper lid 23 from the housing 21 to expose the opening and recording fiP. The upper surface 23B of the upper 1123 is a mounting surface on which the recorded recording paper P2 is placed, and the screen portion 23C at the right end of the upper surface is the mounting surface on which the recorded recording paper P2 is placed.
, and serves as a stopper to stop it from sliding down. The recording paper stacking section consisting of the upper surface 23B of the upper [23] and the screen section 23C is as follows:
Recorded recording sheets P are ejected from the main body of the copying machine and placed one after another to be stored in a pile.

If the paper feed cassette 20 having such a configuration is mounted on the paper feed tray 24 of the copying machine main body, it can be swung around the rotation shaft 25 of the paper feed device on the copying machine main body side by automatic or manual operation. The flip-up lever 26 comes into contact with the lower surface of the target placement plate 22, and the spring pressure is applied. This pushes it upward. As a result, the recording sheets P1 stacked on the storage plate 22 are pushed upward, and the uppermost layer of recording sheets P is brought into contact with the feed roller 27 at the fixed position.

When copying is started, the feed roller 27 rotates and the top layer of recording paper P on the placement plate 22 is carried out one by one.
It is carried on a conveyor belt 28, makes a U-turn by a curved guide plate 29 and a conveyance roller 30, and reaches the registration roller 12jζ. Continuing with the 14th paper P, ha...
The paper is fed by the registration rollers 12 in conjunction with the operations of the photosensitive drum 3 and the optical system 2, and after performing the above-mentioned recording process, that is, transfer, separation, and fixing, the paper is discharged from the copying machine main body by the paper discharge rollers 16. Ru.

The recording paper P discharged from the paper discharge roller 16 is placed on the upper surface 23B of the upper part 123 of the paper feed cassette 20, slides down along the inclined surface, and the rear end of the recording paper P is comes into contact with the screen portion 23C and stops. The recording sheets P2 that have been subsequently copied are stacked and stored one after another on the upper surface 23B of the upper lid 23.

Note that the screen section 23C may be fixedly installed on the top 123, but it can be turned upside down, and when the paper feed cassette 20 is removed from the copying machine main body and stored, the screen section 230 is folded down and the opening section of the housing 21 is opened. By closing the paper feed cassette 20, the paper feed cassette 20 can have a flat shape without increasing its overall height, and is also effective in preventing dust. When loading the paper feed cassette 20 into the copying machine main body, the screen section 23C can be raised manually or automatically using a locking member within the copying machine main body to be in use.

Alternatively, the screen portion 23C may be provided on the copying machine main body side,
The top cover 23 of the paper feed cassette 20 is made into a flat shape, and when the paper feed cassette 20 is loaded into the main body of the copying machine, the top i23 of the paper feed cassette 20 and the screen portion 23C on the main body side are engaged with each other. Good too.

When duplex copying is performed using the paper feed cassette 20 having such a configuration, the recording paper P that has been copied on one side and ejected onto the tray 3 is picked up and transferred to the lower paper feeder with the front and back sides (top and bottom) intact. Stored in the casing 21 of the cassette 20,
When copying is performed again, the back side is copied, so this operation can be easily performed using only the left side of the copying machine body, and furthermore, even when reloading the recording paper, it is possible to accurately copy both sides without making a mistake.

〔Effect of the invention〕

As described above, according to the present invention, since the paper feed cassette and the paper ejection tray are integrally formed, the area occupied by the copying machine during use can be reduced and the copying machine can be installed even in a narrow space. Now you can use it. In addition, since paper feeding and paper ejection can be operated from the same side of the copying machine main body, the operation has become easier. Furthermore, when recording on both sides of the recording paper, the operation is easy and it is possible to reliably record on both sides without making mistakes in loading the recording paper. Furthermore, since it forms a paper feeding power center that also serves as a paper discharge tray, it is effective in reducing the number of parts and cost.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of an electrophotographic copying machine as an example of a recording device according to the present invention, and FIG. 2 is a schematic diagram of a conventional electrophotographic copying machine.

Claims (1)

[Claims] In a recording device that collects recording paper in a recording paper stacking section after being fed from a paper cassette that stores recording paper and being recorded by a recording means, the top cover of the paper cassette is inserted into the recording paper that has already been recorded. A recording device characterized by having a paper discharge tray.