JP3633101B2 - Paper folding device for electrophotographic equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sheet folding device of an electrophotographic apparatus.
[0002]
[Prior art]
3 and 4 show a paper folding device of a conventional printing apparatus using thermal fixing.
[0003]
The electrophotographic apparatus transfers toner, which is powder ink, in the form of print data onto the printing paper 3, melts the toner by heating with a fixing device (not shown), and fixes the toner on the printing paper 3. Was folding.
[0004]
In the sheet folding device, wind is sent from the blower 1 from the direction A to the table 4 that moves up and down so that the height of the folded upper surface of the printing paper 3 is always constant and the folded upper surface of the printing paper 3. The printing paper 3 is composed of a paper width guide 2 that moves in accordance with various printing paper widths, and the printing paper 3 is folded on the table 4 while the printing paper 3 warmed by the fixing device is cooled by the blower 6 of the blower 1.
[0005]
The blower 6 from the blower 1 spreads away from the discharge port of the blower 1, and as shown in FIG. 4, the blower 6 at the paper end of the paper width (a) close to the discharge port of the blower 1 is just before the printing paper is folded. While it hits the printing paper in the narrow range L, the air blow 6 at the paper edge of the paper width (b) far from the discharge port hits the printing paper in the wide range L ′.
[0006]
[Problems to be solved by the invention]
In the conventional paper folding apparatus, the paper cooling fan 6 spreads at the paper edge having a paper width (b) shorter than the paper width (a). There is a drawback that folding failure occurs depending on the paper width.
[0007]
An object of the present invention is to provide a paper folding device that can realize stable paper folding by adjusting the air blowing of various paper widths and preventing paper folding failure.
[0008]
[Means for Solving the Problems]
The object is to provide a paper folding device of an electrophotographic apparatus provided with a blower for cooling printing paper and a paper width guide corresponding to various printing paper widths. This is achieved by providing an adjustment plate that can be changed accordingly.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
[0010]
As shown in FIG. 1, an adjustment plate 5 that regulates the blower 6 from the blower 1 is provided on a paper width guide 2 that moves at a height that is located above the discharge port of the blower 1 according to the paper width.
[0011]
In the paper folding apparatus configured as described above, the air blow 6 from the blower 1 is blocked by the adjusting plate from the air blow 6 upward to the printing paper regardless of the paper width as shown in FIG. Therefore, since only the range L equivalent to the case of the paper width (a) is passed, flapping of the printing paper is suppressed, paper folding failure is prevented, and stable paper folding is possible.
[0012]
【The invention's effect】
According to the present invention, it is possible to provide a paper folding device that can realize stable paper folding.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.
FIG. 2 is a schematic configuration diagram showing an embodiment of the present invention.
FIG. 3 is a schematic configuration diagram of a conventional paper folding device.
FIG. 4 is a detailed view of a conventional paper folding apparatus.
[Explanation of symbols]
1 is a blower, 2 is a paper width guide, 3 is printing paper, 4 is a table, 5 is an adjusting plate, and 6 is air.

Claims (1)

In a paper folding device of an electrophotographic apparatus equipped with a blower for cooling printing paper and a paper width guide corresponding to various printing paper widths, the flow of air from the blower can be changed according to the paper width in the paper width guide A sheet folding device for an electrophotographic apparatus, characterized in that an adjustment plate is provided.

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