JP3744056B2 - Printer device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a printer device that is built in or connected to an information processing device such as a word processor.
[0002]
[Prior art]
In recent years, in an information processing apparatus such as a word processor for creating a document, a printer apparatus for printing the created document is used in the information processing apparatus or connected to the information processing apparatus by a cable. . When a document is printed by the printer device, the printing paper is inserted and set in advance from the paper feed port of the printer device, sucked by the paper feed roller, printed by the printing unit, and discharged from the paper discharge port by the paper discharge roller.
[0003]
FIG. 2 is a partial sectional view of an information processing apparatus incorporating a conventional printer device. In FIG. 2, reference numeral 21 denotes an information processing apparatus main body, which includes a printer device 22. Reference numeral 23 denotes a paper feed port through which the printing paper 27 is fed to the printing unit 24 of the printer device 22 by the paper feeding roller 25 and the paper feeding roller 26. Reference numeral 28 denotes a printing paper printed by the printing unit 24 by the paper discharge roller 29. A paper discharge port 30 is a printer cover that covers the paper supply port 23 and the paper discharge port 28 of the printer 22.
[0004]
The conventional printer configured as described above will be described with reference to the drawings. The printing paper 26 set in the paper feeding port 23 is sucked into the printer by the paper feeding roller 25 and further sent to the printing unit 24 by the paper feeding roller 26. Then, after printing by the printing unit 24, the paper is discharged from the paper discharge port 28 by the paper discharge roller 29.
[0005]
[Problems to be solved by the invention]
However, in such a printer apparatus, if the printing paper is thin, flexible, or curled, the printing paper discharged from the paper discharge port after printing may be sucked into the paper supply port again. there were.
SUMMARY OF THE INVENTION An object of the present invention is to solve such problems and to provide a printer device that does not rewind into a sheet feeding port even if it is a thin flexible sheet or a curled sheet.
[0006]
[Means for Solving the Problems]
In the printer apparatus of the present invention, a sheet entanglement preventing piece that rotates about an attachment fulcrum in both directions of the sheet feeding port side and the sheet discharging port side is provided between the sheet feeding port and the sheet discharging port.
According to the present invention, it is possible to obtain a printer device that does not rewind into a paper feeding port even if it is a thin flexible paper or a curled paper.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes a paper feed port through which printing paper is fed, a paper ejection port through which the printing paper is discharged after printing is performed on the printing paper by a print head, A paper feed guide unit for supporting and feeding printing paper to the paper feed port, and is installed between the paper feed port and the paper discharge port, and both directions of the paper feed port side and the paper discharge port side A paper wrap prevention piece that rotates about a mounting fulcrum, and the paper wrap prevention piece , when rotated in the direction toward the paper discharge port, hits the discharged print paper and is directed toward the paper feed port. The printer device is characterized in that the printed paper after printing is prevented from entering the paper feed port again by covering part or all of the paper feed port . This has the effect that the printing paper is not sucked into the paper feed port again.
[0008]
According to a second aspect of the present invention, in the printer device according to the first aspect, the paper feed guide portion can cover the paper feed port when the paper entrainment prevention piece rotates in the direction of the paper discharge port. Even if there is a sheet entrainment prevention piece, it is possible to close the sheet feed port by the sheet feed guide portion and to prevent the entry of dust and the like.
[0009]
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3.
(Embodiment 1)
FIG. 1A is an external perspective view showing information processing in which the printer apparatus of the present invention is built. FIG. 1B is a partial cross-sectional view thereof. In the figure, reference numeral 1 denotes an information processing apparatus main body, and a printer apparatus 2 is built in the rear part. Reference numeral 3 denotes a paper feeding port through which the printing paper 7 is fed to the printing unit 4 of the printer apparatus 2 by the paper feeding roller 5 and the paper feeding roller 6. Reference numeral 8 denotes the printing paper printed by the printing unit 4. A paper discharge port 10 is a sheet entanglement preventing piece provided between the paper supply port 3 and the paper discharge port 8 and is attached to the printer device 2 so as to be rotatable by a fulcrum 11. Reference numeral 12 denotes a printer cover that can cover the paper feed port 3 and the paper discharge port 8.
[0010]
The operation of the printer apparatus configured as described above will be described with reference to the drawings. First, printing paper is set in the paper feed port 2 of the information processing apparatus main body 1. At this time, the printer cover 12 opens the paper feed port 3 and supports the printing paper 7. Next, the printing paper 7 is sucked by the paper feeding roller 5 and the paper feeding roller 6 and supplied to the printing unit 4. After printing by the printing unit 4, the printing paper 6 is discharged from the paper discharge port by the paper discharge roller 9. When the printing paper 7 is thin or curled, the printing paper 7 advances in the direction of the paper feed port 3, but at this time, it strikes the paper winding prevention piece 10 and continues to be pressed as it is. Shift from position to B position. The leading end of the paper wrap prevention piece 10 comes into contact with the printer cover 12 or the printing paper supported by the printer cover 12. In this way, a part of the paper feed port 3 is covered with the paper curb prevention piece 10. In addition, when the printer is not in use, if the paper curb prevention piece 10 is tilted to the A side, there is no problem in closing the printer cover 12 and covering the paper feed port 3.
[0011]
【The invention's effect】
As described above, according to the present invention, since the sheet entanglement preventing piece is provided between the sheet feeding port and the sheet ejection port, even if the sheet is thin and easily bent or curled, it is not entangled again in the sheet feeding port. Further, it is possible to obtain a printer device that can cover the paper feed port with the printer cover even with the paper wrap prevention piece attached.
[Brief description of the drawings]
1A is an external perspective view of an information processing apparatus incorporating a printer apparatus according to an embodiment of the present invention; FIG. 1B is a partial cross-sectional view of the printer apparatus according to an embodiment of the present invention; Partial cross-sectional view [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Information processing apparatus main body 2 Printer apparatus 3 Paper feed port 4 Printing part 5 Paper feed roller 6 Paper feed roller 8 Paper discharge port 9 Paper discharge roller 10 Paper entanglement prevention piece 11 Support point 12 Printer cover

Claims (2)

A paper feed port through which printing paper is fed; a paper ejection port through which printing paper is discharged after printing is performed by a print head; Paper feed guide unit for preventing the paper from being caught between the paper feed port and the paper discharge port and rotating around the mounting fulcrum in both directions of the paper feed port side and the paper discharge port side The paper entrainment piece is rotated in the direction of the paper feed port by being abutted against the discharged print paper when in the state of being rotated in the direction of the paper discharge port, and a part of the paper feed port Alternatively, a printer apparatus characterized in that the printing paper after printing does not enter the paper feed port again by covering the whole . 2. The printer apparatus according to claim 1, wherein the paper feed guide unit is configured to cover the paper feed port when the paper entrainment prevention piece rotates in the direction of the paper discharge port.

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