JPH0510361U - Manual paper feeding device in image forming apparatus - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a manual paper feeding device that can perform manual paper feeding without opening a manual paper feeding table, and that the calling rollers do not interfere with the paper feeding and that the paper can pass through easily. A sheet insertion port for inserting a sheet into the apparatus when the manual feed table is closed is provided on an upper portion of the image forming apparatus.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a manual sheet feeder for sheets in an image forming apparatus.

[0002]

[Prior art]

  The conventional manual paper feeding device 14 is as shown in FIG. It is provided and the manual feed table 4 is shown in FIG. It is opened as shown. Then, in that state, the paper is set straight and without difficulty. Is formed so that the calling roller 1 can be moved upward by a moving mechanism 16. It has been moved to one side to improve the paper setting property. And manual feeding When the use of the paper device 14 is finished and the manual feed table 4 is closed, the calling roller 1 is also lowered. And press it against the paper surface of the tray table (not shown) with the force of the spring. It has been prepared for paper feeding. In FIG. 4, 2 is a paper feed roller, 3 is a reverse rotation roller, 12 Is a hinge part of the manual feed table 4, and 13 is an entrance guide plate.

[0003]

[Problems to be solved by the device]

  When the conventional manual paper feeder as described above is used, the manual paper feeding table is manually operated. It has to be opened manually, and in the case of a small number of sheets, it is rather troublesome and the image The manual feed table can be opened when the forming device installation space is small. There is a problem in that the manual feed device does not function because it becomes difficult.

[0004]   Therefore, the purpose of this invention is to solve the above-mentioned problems of the manual paper feeding device, Manual feeding is possible without opening the manual feeding table, and the calling roller supplies paper. There is a need to provide a manual paper feeding device that has good paper passing properties without interfering with paper feeding.

[0005]

[Means for Solving the Problems]

  In order to achieve the above-mentioned object, the present invention is designed so that when the manual feed table is closed. It is characterized in that a sheet insertion port for inserting a sheet is provided in the storage. Also, when the manual feeder is closed, the paper that passes through the paper insertion slot is detected. Paper detection means is provided, and paper is smoothly fed to the hinge of the manual feed table. A guide plate is provided so as to be taken into the paper mouth.

[0006]

[Action]

  In this invention as described above, when the manual feed table is closed, it is used from the paper insertion port. Paper is inserted. Also, the fact that the paper has passed through the paper insertion port is detected by the paper passing detection means. Paper is detected by the guide plate provided on the hinge of the manual feed table. Is taken in smoothly.

[0007]

【Example】

  In the present invention shown in the drawings, the same parts as those of the conventional device are designated by the same reference numerals. The description will be omitted, and mainly different parts will be described.

[0008]   1 to 3 showing an embodiment of the present invention, the image forming apparatus 15 has an upper portion. A paper insertion slot 5 is provided so that paper can be fed, and a paper passage slit 6 is provided below it. Has been. One side surface 18 of the paper passage slit 6 is used to close the manual feed table 4. Make sure that the paper does not hit the paper-passing surface 8 of the manual feed table 4 when it is chained. It is located on one side. Then, the paper passing slit 6 has a paper A detection unit 7 is provided for detecting the passage of the sheet when the sheet is inserted and passed. It The detection means 7 uses a switch or a sensor such as an optical sensor. And The detection means 7 detects that the sheet has passed and detects the passing of the sheet by a solenoid (not shown) or the like. The moving device 17 thus formed is operated to move the calling roller 1 upward so that the paper is not passed. It does not interfere.

[0009]   Further, the paper that has come down from above smoothly passes through the hinge portion 12 of the manual feed table 4. As described above, the arc-shaped guide plate 9 is provided in this portion. This guide plate 9 It is mounted on the main body side of the image forming apparatus 15. Further, as shown in FIG. The paper passing surface 10 is formed so that there is no step between the paper passing surface 8 and the manual feeding table paper passing surface 8. There is. In addition, as shown in FIG. 3, the tip of the guide plate 9 is immersed in the paper passing surface 8 of the manual feed table. The groove 11 is provided so that the tip of the guide plate 9 is below the paper passing surface 8 of the manual feed table. You may form so that it may become. With the guide plate 9 formed in this way, The bent paper is smoothly turned and taken into the paper feed port.

[0010]

[Effect of device]

  The invention is as described above, and the manual feed table is closed at the top of the image forming apparatus. Sometimes there is a paper insertion slot for inserting paper into the device, so you can manually feed paper If you can perform manual feeding without opening the manual feeding table and Saves time and labor by opening the manual feed table and setting paper. The effect is that you can In addition, since the paper passing detection means is provided in the paper slit, When the paper passes through it, move the calling rollers upward to smoothly load the paper into the paper feed port. The effect is that it can be reached. In addition, an arc-shaped guide plate By doing so, you can change the direction without jamming the paper at the hinge of the manual feed table. Therefore, there is an effect that the sheet reaches the sheet feeding port smoothly.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of an essential part of an embodiment of the present invention.

FIG. 2 is a diagram showing a state in which a sheet passing surface of a manual feed table and a guide plate of the above embodiment are in contact with each other.

FIG. 3 is a diagram showing a state in which a tip of a guide plate is recessed in a groove of a manual feed table surface of the above embodiment.

FIG. 4 is a vertical sectional front view of a main part of a conventional manual feed table device.

FIG. 5 is a front view showing a state in which the manual feed table is opened.

[Explanation of symbols]

5 Paper insertion slot 6 Paper passing slit 7 Paper passing detection sensor 8 Manual feed table 9 Guide plate 10 Guide plate paper surface 11 groove 17 Moving device 18 Paper passage slit side

Claims (3)

[Scope of utility model registration request] 1. A manual sheet feeding device in an image forming apparatus, wherein a sheet insertion port for inserting a sheet into the apparatus when the manual feeding table is closed is provided on an upper portion of the image forming apparatus. 2. The manual sheet feeder according to claim 1, further comprising sheet passing detection means for detecting that the sheet has passed through the sheet insertion port when the manual sheet feeding table is closed. 3. The manual sheet feeding device according to claim 1, wherein a guide plate is provided at a hinge portion of the manual sheet feeding table so that the sheet can be smoothly taken into the sheet feeding port when the manual sheet feeding table is closed.