JP2571415Y2 - Manual paper feeder in image forming apparatus - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual sheet feeding device for an image forming apparatus.

[0002]

2. Description of the Related Art A conventional manual paper feeder 14 is provided on the side of an image forming apparatus 15 as shown in FIG.
When paper is manually fed, the manual feed table 4 is manually opened as shown in FIG. In this state, the sheet is formed so that it can be set straight and without difficulty, and the call roller 1 is moved upward by the moving mechanism 16 so that the sheet setting property is improved. When the use of the manual paper feeder 14 is completed and the manual feed table 4 is closed, the call roller 1 also moves downward, and is pressed against the paper surface of a tray table (not shown) by the force of a spring to feed paper. I have it. FIG. 4
In the figure, 2 is a paper feed roller, 3 is a reverse roller, 12 is a hinge portion of the manual feed table 4, and 13 is an entrance guide plate.

[0003]

In the conventional manual paper feeder as described above, when using the manual paper feeder, the manual feed table has to be manually opened. If the space for installing the image forming apparatus is small, it is difficult to open the manual feed table, and there is a problem that the manual feeder does not function.

Therefore, an object of the present invention is to solve the above-mentioned problems of the manual paper feeder, to enable manual paper feed without opening the manual feed table, and to prevent the feeding roller from interfering with the supply of paper. Instead, it is an object of the present invention to provide a manual paper feeder with good paper passing property.

[0005]

According to the present invention, in order to achieve the above-mentioned object, a paper insertion opening for inserting paper into the apparatus when the manual feed table is closed is provided, and the paper is inserted into a hinge portion of the manual feed table. The guide plate is provided so that the guide plate can be smoothly taken into the paper feed port, a groove is provided in the sheet passing surface of the manual feed table, and the tip of the guide plate fits into the groove.

[0006]

In the present invention as described above, paper is inserted from the paper insertion slot when the manual feed table is closed, and the paper is smoothly taken in by the guide plate provided at the hinge portion of the manual feed table.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention shown in the drawings, the same parts as those of the prior art are referred to by the same numerals, and the description is omitted.
Mainly different parts will be described.

In FIGS. 1 to 3 showing an embodiment of the present invention, a paper insertion slot 5 is provided in an image forming apparatus 15 so that paper can be fed from an upper part thereof, and a paper passage slit 6 is formed in a lower part thereof.
Is provided. One side surface 18 of the sheet passage slit 6 is located on substantially the same plane so that the sheet does not hit the sheet passing surface 8 of the manual feed table 4 when the manual feed table 4 is closed. The paper passing slit 6 is provided with a detecting means 7 for detecting the passage of the paper when the paper is inserted and passed. The detecting means 7 uses a sensor such as a switch or an optical sensor. The detecting means 7 detects that the paper has passed, and activates a moving device 17 constituted by a solenoid or the like (not shown) to move the call roller 1 upward so as not to obstruct the passage of the paper. It has become.

An arc-shaped guide plate 9 is provided at this portion so that the paper coming down from above passes through the hinge portion 12 of the manual feed table 4 smoothly. This guide plate 9 is mounted on the main body side of the image forming apparatus 15. Then, as shown in FIG.
The tip of the guide plate 9 is immersed in the groove 11 and located below the manual table passing surface 8, whereby the manual table passing surface 8 and the sheet passing surface of the guide plate 9 are provided.
There will be no step between this and 10. The paper coming down by the guide plate 9 formed in this way is smoothly turned and taken into the paper feed port.

[0010]

As described above, the present invention provides a paper insertion opening for inserting paper into the image forming apparatus when the manual feed table is closed at the top of the image forming apparatus. The manual feed can be performed without opening the manual feed table, and when the number of sheets is small, the trouble of opening the manual feed table and setting the paper can be saved, the space can be saved, and the arc-shaped guide plate is provided. Since the leading end of the guide plate does not enter into the groove provided on the sheet passing surface of the manual feed table, and no step is formed between the sheet passing surface of the manual feed table and the sheet passing surface of the guide plate, the sheet is fed manually. The paper is guided by the guide plate, and the direction can be changed without being caught by the tip of the guide plate or the hinge portion of the manual feed table.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view of a main part of an embodiment of the present invention.

FIG. 2 is a diagram illustrating a state in which a tip of a guide plate is immersed in a groove of a manual feed table surface according to the embodiment.

FIG. 3 is a vertical sectional front view of a main part of a conventional manual feed table device.

FIG. 4 is a front view showing a state where the manual feed table is opened.

Claims (1)

(57) [Scope of request for utility model registration] A paper insertion port is provided at an upper portion of the image forming apparatus for inserting paper into the apparatus when the manual feed table is closed, and a guide is provided at a hinge of the manual feed table so that the paper is smoothly taken into the paper feed port. A manual sheet feeding device in an image forming apparatus, wherein a plate is provided, a groove is provided in a sheet passing surface of a manual feed table, and a tip of a guide plate is fitted into the groove.