JP2012166940A - Roll paper holding device for printer and printer - Google Patents

Abstract

An object of the present invention is to eliminate the expansion of the space in the upward direction caused by an increase in the outer shape of the roll paper, and to improve the mountability of the roll paper to the roll paper holder.
A roll paper disposed outside the housing and supplied to a paper feed port of the housing is provided apart from the paper feed port of the housing, and a rotation axis of the roll paper is positioned in a vertical direction. A roll paper holder that rotatably holds the roll paper, and is disposed between the roll paper holder and the paper feed port of the housing, and the roll paper from the roll paper holder is parallel to the paper feed port of the housing. And a roll paper guide member that changes the direction of the roll paper to guide it.
[Selection] Figure 1

Description

  Embodiments described herein relate generally to a roll paper holding device for a printer and a printer.

  Conventionally, as a roll paper holding device for a printer, when the roll paper used in the printer has an outer shape that exceeds the size of the paper storage section in the housing, an optional roll paper holder is attached to the outside of the housing. One that supplies roll paper is known.

JP-A-2005-231180

  However, in such a roll paper holder, the rotation axis of the roll paper is placed so as to be horizontal with the printing surface of the printer, that is, the paper feed port formed in the housing. In such an installation form, the larger the outer shape of the roll paper attached to the roll paper holder, the more space required for the outer size of the roll paper is required in the vertical space at the installation location. The necessary space (at least the space equivalent to the diameter of the roll paper) must be secured. Where there is a restriction on the space in the upper direction, this type of roll paper holder has been inconvenient.

  Therefore, the problem to be solved by the present invention is to eliminate the expansion of the space in the upward direction caused by the increase in the outer shape of the roll paper, and to improve the mountability of the roll paper to the roll paper holder.

    A roll paper holding device for a printer according to an embodiment of the present invention is disposed outside a housing, and is provided separately from a roll paper supplied to a paper feed port of the housing and a paper feed port of the housing. A roll paper holder that rotatably holds the roll paper with a rotation axis of the roll paper disposed between the roll paper holder and the paper feed port of the housing, and the roll paper from the roll paper holder A roll paper guide member that changes the direction of the roll paper so as to be parallel to the paper feed port of the housing.

  The printer according to the embodiment of the present invention is disposed inside the housing and is disposed outside the housing, a sheet passing path extending from the sheet feeding port to the sheet discharge port, a printing unit provided in the sheet passing path, and the like. A roll paper to be supplied to the paper feed port of the housing, and a roll that is provided apart from the paper feed port of the housing and rotatably holds the roll paper with a rotation axis of the roll paper positioned in a vertical direction The roll paper is disposed between the paper holder and the roll paper holder and the paper feed port of the housing, and the orientation of the roll paper is changed so that the roll paper from the roll paper holder is parallel to the paper feed port of the housing. A roll paper guide member for guiding.

1 is a longitudinal side view schematically showing a printer according to an embodiment. FIG. 2 is a plan view of the printer according to the embodiment. The perspective view which looked at the printer concerning an embodiment from the back side.

  Details of a roll paper holding device and a printer according to an embodiment will be described below with reference to the accompanying drawings. In the following, an example of application to a label printer as a roll paper holding device of a printer will be described.

  FIG. 1 is a longitudinal side view schematically illustrating a printer according to an embodiment. As shown in FIG. 1, the label printer 1 includes a housing 2 and a roll paper holding device 3 disposed outside the housing 2. The roll paper holding device 3 includes a roll paper holder base 4, a roll paper holder 5 provided on the roll paper holder base 4, a roll paper 6 held on the roll paper holder 5, and a roll paper holder. It is composed of a roll paper guide member 7 and the like provided on the base 4.

  The label printer 1 according to the present embodiment draws the roll paper 6 held in the roll paper holder 5 into the housing 2, and the printing unit 8 provided in the housing 2 for the drawn roll paper 6 performs predetermined items. Is printed. In the present embodiment, as the roll paper 6, a label paper or a tag paper in which continuous paper is wound in a roll shape is used.

  Inside the housing 2, a paper passage path 11 is formed that extends from the paper feed port 9 to the paper discharge port 10. The paper passage route 11 includes a pair of paper feed rollers 12 on the paper feed port 9 side, A pair of paper discharge rollers 13 is provided on the paper discharge port 10 side, and the roll paper 6 is drawn from the paper supply port 9 into the paper passage path 11 and guided to be discharged from the paper discharge port 10.

  In this way, in the sheet passing path 11 for guiding the roll paper 6, a printing unit 8 is provided between the pair of paper feed rollers 12 and the pair of paper discharge rollers 13. The printing unit 8 includes a rotatable platen 14 that is driven to rotate by a stepping motor (not shown), a thermal head 15 that abuts the platen 14 via a sheet passing path 11, and the like. The thermal head 15 is rotatably supported by a support shaft arranged in parallel with the platen 14, and is urged in a direction in which the thermal head 15 is pressed against the platen 14 by a spring (not shown). Then, the roll paper 6 printed by the printing unit 8 is cut into an appropriate length by the cutter unit 16 disposed at the downstream position of the printing unit 8 in the paper passing path 11 and issues a label.

  FIG. 2 is a plan view of the printer according to the embodiment, and FIG. 3 is a perspective view of the printer according to the embodiment as viewed from the back side. As shown in FIGS. 2 and 3, the roll paper holding device 3 is fixed to the housing 2 with one end of the roll paper holder base 4 engaging with the outer wall of the housing 2 on the paper feed port 9 side. Yes. A roll paper holder 5 is provided at the other end of the roll paper holder base 4 so that the rotation axis of the roll paper 6 is positioned in the vertical direction and is rotatably held. With respect to the roll paper holder 5, the loading and unloading directions of the roll paper 6 are taken in and out from the lateral direction (that is, the horizontal direction), and the loading and unloading operations are very easy and simple. Then, on the roll paper holder base 4, the roll paper 6 from the roll paper holder 5 is positioned parallel to the paper feed port 9 of the housing 2, between the roll paper holder 5 and the paper feed port 9 of the housing 2. A roll paper guide member 7 is provided to guide the roll paper 6 by changing the direction. The roll paper guide member 7 includes a pair of holding portions 17 and 17 and a roller 18 rotatably held by the holding portions 17 and 17.

  Next, the paper feeding operation of the roll paper 6 in the label printer 1 of the present embodiment will be described. The roll paper 6 held by the roll paper holder 5 with its rotation axis positioned in the vertical direction is parallel to the paper feed port 9 of the housing 2 by the roller 18 of the roll paper guide member 7. Is changed by approximately 90 degrees, is drawn into the housing 2 from the paper supply port 9, and is discharged from the paper discharge port 10 after the printing by the printing unit 8 is completed. The roll paper 6 is drawn from the paper feed port 9 and guided along the paper passing path 11 when the platen 14 is rotationally driven by the stepping motor.

  According to the above embodiment, the roll paper that is disposed outside the housing and is supplied to the paper feed port of the housing is rotatably held by the roll paper holder with the rotation axis of the roll paper positioned in the vertical direction. ing. Accordingly, the expansion of the space in the upward direction caused by the increase in the outer shape of the roll paper is eliminated, and the mountability of the roll paper to the roll paper holder is improved.

  In addition, although embodiment of this invention was described, embodiment is shown as an example and is not intending limiting the range of invention. The embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention.

1 Label printer (printer)
DESCRIPTION OF SYMBOLS 2 Housing 3 Roll paper holding device 5 Roll paper holder 6 Roll paper 7 Roll paper guide member 8 Printing part 9 Paper feed port 10 Paper discharge port 11 Paper passage route

Claims (4)

Roll paper disposed outside the housing and supplied to the paper feed port of the housing;
A roll paper holder provided apart from the paper feed port of the housing, the roll paper rotating shaft being positioned in the vertical direction, and holding the roll paper rotatably;
Roll paper that is disposed between the roll paper holder and the paper feed port of the housing and guides the roll paper from the roll paper holder by changing the orientation of the roll paper so as to be parallel to the paper feed port of the housing. A guide member;
A roll paper holding device for a printer.   The roll paper holding device for a printer according to claim 1, wherein the roll paper guide member is a roller rotatably held by a pair of holding portions. A paper passing path formed in the housing and continuing from the paper feed port to the paper discharge port;
A printing unit provided in the sheet passing path;
A roll paper disposed outside the housing and supplied to a paper feed port of the housing;
A roll paper holder provided apart from the paper feed port of the housing, the roll paper rotating shaft being positioned in the vertical direction, and holding the roll paper rotatably;
Roll paper that is disposed between the roll paper holder and the paper feed port of the housing and guides the roll paper from the roll paper holder by changing the orientation of the roll paper so as to be parallel to the paper feed port of the housing. A guide member;
Printer with.   The printer according to claim 3, wherein the roll paper guide member is a roller rotatably held by a pair of holding portions.

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