JPS60182471A - Recording device - Google Patents

Abstract

PURPOSE:To save parts and space and also to prevent oscillations, etc., by fitting a discharged paper inverting part and/or cooling fan part to a fixing device in one body. CONSTITUTION:A paper discharge tray 11 is fitted to the upper part of a substrate 3 and the discharged paper inverting part which consists of guide plates 7a and 7b and feed-out rollers 8a and 8b for guiding and turning over discharged recording paper is arranged between paper discharge rollers 5a and 5b. The recording paper once discharged from a path 7 is turned over to right by the feed- out rollers 8a and 8b and send out onto a tray 11. The recording paper is inverted and therefore stacked on the paper discharge tray 11 with its transfer surface down. The cooling fan part 12 is fitted in the space formed by arranging the fixing device 4, tray 11, and further path 7, etc., at the center part of the substrate 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device such as a copier facsimile receiving device or a computer output printer, and particularly to an electrostatic recording device.

[Prior art]

When copies are made using a copying machine, the originals are generally copied one after the other according to the stacked pages, starting from the top page.However, when a normal copying machine is tilted, the copied records Paper is ejected onto the output tray with its transfer side facing upwards, and recording sheets complementary to each subsequent page are similarly stacked one after another onto the output tray with their respective transfer sides facing upwards. ing.

As a result, the pages of the copied recording paper are busy in a completely opposite manner to the pages of the original, and the copy operator has to replace the pages of the recording paper after copying is completed.

Such work requires a lot of effort and time on the part of the operator when there are a large number of originals or when a large number of copies are required, and cannot be taken lightly from the standpoint of office efficiency.

To solve this problem, the recording paper ejected from the copying machine's paper output port is turned over by a device attached to the outside of the copying machine, and placed on the lid paper tray with the transfer surface facing downward. A device for reversing the recording paper contained therein is provided.

According to the reversing device, the pages of the recording paper stacked on the paper output tray are all (identical) to the pages of the original, so it is not necessary to replace and glance at the pages of the recording paper after copying as described above. Adjacent without the need for.

However, the above-mentioned reversing device has conventionally been a unit-type device prepared separately from the main body of the copying machine, and when used, it is attached to the fixing device, which is the last process in the copying machine. -I am. This requires various connecting parts and mounting space, and in addition, the distance from the copying machine's paper output port to the paper output tray of the device increases, making the recording paper conveyance path complicated. The cost is also significant.

In addition, in terms of functionality, since the device is unitary and independent, it is necessary to have a drive source to rotate the rollers incorporated in it, and as a result, vibrations of the device due to the drive force are There was a possibility that this would be transmitted to the main body of the machine, especially the optical system, and impair the sharpness of the image. This risk is particularly high in copying machines in which the reversing device is mounted on the top of the copying machine.

On the other hand, in a position close to the fuser of a copying machine, there is a
A cooling fan section is provided for the purpose of discharging ozone generated within the copying machine or cooling the entire interior of the copying machine.

The cooling fan section is generally installed in the copying machine body as a separate unit from the fuser, but as with the reversing device described above, installation as an independent small-scale unit is possible due to the connection. This requires a large number of parts and extra space, and since the board that makes up the unit is also small, it also has the disadvantage that vibrations are amplified and transmitted to the copying machine.

[Purpose of the invention]

The present invention provides a fixing device for a copying machine that minimizes vibrations caused by the operation of a copying machine equipped with a recording paper reversing section and a cooling fan section, and allows installation of these components with a small number of parts and space. The purpose is to provide

[Structure of the invention]

The present invention is constructed by arranging either or both of the recording paper reversing section and the cooling section of the fixing device on the same substrate of the fixing device including the fixing device. This is achieved by a fixing device for a copying machine characterized by integrating a paper discharge reversing section and/or a cooling fan section.

〔Example〕

A side sectional view of one embodiment according to the invention is shown in FIG.

In FIG. 1, reference numeral 1 denotes a copying machine of which only the outline of the main part is shown. Inside the main body of the copying machine 10, a pair of left-right symmetrical substrates 3 incorporating a fixing device 2 according to the present invention are installed. The mounting is fixed with a predetermined distance maintained by the stay 3a or a plate member replacing the stay 3a.

The substrate 3 includes a heating roller 4a and a heating roller 4a.
A fixing device 4 equipped with a pressing roller 4b which is driven by pressing the fixing device 4 is fixed in several places, and discharging rollers 5a and 5b are disposed adjacent to the fixing device 4.

The respective shafts of the heating roller 4a and the paper ejection roller 5a are extended to the outside of the substrate 3, and are provided with several gears 6a and 6d, respectively, with an intermediate gear 6b,
6C is interposed.

On the other hand, the gear 6 rotated by the power of the copying machine 1 meshes with the gear 6a, and also meshes with the gear 5a via intermediate gears 6b and 6C, forming a five-drive gear train.

Further, a paper ejection tray 11 which is open to the upper surface of the copying machine 1 is attached to the upper part of the substrate 3, and the paper ejection tray IJ
Guide plates 7a and 7 are provided between the paper ejection rollers 5a and 5b to guide the ejected recording paper and to turn the paper upside down.
A paper discharge reversing section is provided, which includes a paper discharge roller 8b and feed rollers 8a and 8b.

The guide plates 7a and 7b form an arc-shaped passage 7 for guiding the recording paper, and one opening of the passage 7 is connected to the pressing surface K of the paper discharge rollers 5a and 5b, and the other opening The portion is inverted so that it faces the pressing surfaces of the feed rollers 8a and 8b.

Further, the feed roller 8a has a boolean IJ 9b coaxially attached on its extended axis and is connected by a belt to a pulley 9a integrated with the gear 6C. It is also possible to follow the delivery roller 8b which is rotated simultaneously with the delivery roller 5a and is mounted in such a manner that it presses the delivery roller 8a.

Furthermore, the fixing device 4 and the paper output tray 11 located at the center of the substrate 3. Furthermore, a cooling fan section 12 is installed in the space created by the arrangement of the passage 7 and the like.

The fixing device of the present invention has the above structure, and its functions will be explained next.

First, when the copying operation of the copying machine 1 starts, the gear 6 starts to rotate counterclockwise, and its rotational speed is determined by the speed of the heating roller 4a, the paper ejection roller 5a, and the feed roller 8a, which are driven by the gear 6. are determined so that the recording paper can be conveyed smoothly.

The recording paper, on which the toner image of the original image has been transferred, moves leftward on a transport plate la by transport rollers (not shown) and is transported into the fixing device 2 of the present invention.

The recording paper is clamped between a clockwise rotating heat roller 4a and a pressure roller 4bK, and then conveyed to the left while welding the toner image thereon, and then transferred to a counterclockwise rotating paper ejection roller 5a and The paper is ejected to the path 7 by being gripped and conveyed by the driven paper ejection roller 5b.

At this time, the cooling fan section 12 located close to the fuser 4 which is already in operation sucks and discharges the moisture generated by heating in the fuser, and also removes ozone generated inside the copier 1. Since the toner is discharged to the outside and the temperature inside the copying machine is kept constant, the fixing function and the condition of the recording paper are always kept in the best condition.

The recording paper discharged into the passage 7 is guided by guide plates 7a and 7b.
The leading end of the recording paper moves upward along the feed roller 8aK before the trailing edge of the recording paper leaves the paper ejection roller 5a.

Therefore, at the same time as the recording paper is discharged from the path 7, it is reversed rightward by the feed rollers 8a and 8b and sent onto the paper discharge tray 11, but at this time, the recording paper is turned upside down. Therefore, the paper is placed on the paper discharge tray 11 with the transfer surface facing downward.

Since the recording sheets transferred from the subsequent originals are stacked one after another in the same manner, the pages are obtained in exactly the same order as the originals.

In this way, the present invention directly fixes the fuser, the paper ejection reversing section, and the cooling fan section to the copying machine body using a strong board that incorporates them into one, so there is no need for extra parts for installation. Since the drive power is introduced through meshing with the gear 6 on the copying machine side at one location, the power system is simple and the resonance accompanying the operation is small.

FIG. 2 shows the second embodiment, in which the paper output tray 11
1 is placed in the lower part of the copying machine 101. Therefore, the copying machine 101 is placed on a stand 200 and used, and in this case, the guide plates 107a, 107b forming the recording paper path 107, the feed roller 108a,
108 b, and the belt 110 is a paper ejection roller 105
The substrate 1()3 is formed and attached as shown in the figure since the substrate 1() is disposed below the substrate a, and its functions have the same effects as in the previous example.

〔Effect of the invention〕

The present invention provides a fixing device in which a fixing device, a paper ejection reversing device connected thereto, and a cooling fan section can also be installed on the substrate in a copying machine, and as a result, recording paper reversing and fixing unit cooling are possible. It is possible to realize a copying machine that can save the parts and space required to add the functions, prevent harmful vibrations caused by them, and make assembly and adjustment easier because it is made into blocks. became.

[Brief explanation of the drawing]

1 and 2 show a copying machine equipped with a fixing device according to the present invention, respectively. ! 1. Main part sectional view showing the second embodiment. 1 * 101... Copying machine 2, 102... Fixing device 3, 103... Group @ 4, 104... Fixing device 4a, 104a... Heating roller 5a, 1
05a... Paper ejection rollers 7a, 107a, 7b
, 107b-guide plate 8a, l08a, 8b
, 108b-=feeding roller 10.110...belt 11, 11.1...paper ejection tray 12.112
...Cooling fan section 2flO ... Frame agent Patent attorney No. 1) Parent-in-law Figure 1 1 2

Claims (1)

[Claims] A recording device characterized in that a fixing device is integrated with a paper discharge reversing section and a cooling fan section.