JPH11208048A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent meandering or jamming of a roll paper even when the roll paper is pulled in a direction different from the guiding-conveying direction in terms of issuing of the roll paper. SOLUTION: A guide member 13 for restricting movement of a roll paper 2 in a paper width direction by means of a guide wall 14 extended to a conveying direction of the roll paper 2 is provided to an issuing outlet 8. In the case where the roll paper 2 is issued from the issuing outlet 8, even when the roll paper 2 is pulled to a direction different from the guiding/conveying direction of the roll paper 2 before cutting the roll paper 2 by means of a cutter 12, a side end of the roll paper 2 is abutted to the guide wall 14 so that the deformation in the direction different from the guiding-conveying direction of the roll paper 2 is prevented. It is possible to prevent occurrence of meandering of the roll paper 2, paper jamming or the like because of, for example, position shift of the roll paper 2 at a nip section 7 in a printing section 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer particularly suitable for use as a receipt printer.

[0002]

2. Description of the Related Art FIG. 3 is a perspective view showing an example of a schematic structure of a conventional receipt journal printer. This receipt journal printer performs a predetermined printing on both a receipt paper 102 and a journal paper 103 by one line type thermal printer head 101. That is, the receipt paper 102 and the journal paper 103 are wound in a roll shape and held coaxially, pulled out and conveyed by rubber rollers 104, respectively, and a nip 106 between the platen roller 105 and the thermal printer head 101. Has been guided to. Then, the receipt paper 102 after the printing of the predetermined items is issued from the issuing port (not shown) by the thermal printer head 101, and the journal paper 103 after the printing of the predetermined items is wound around the journal winding shaft 107.

Here, in a receipt journal printer having a schematic structure as shown in FIG. 3, as a method for issuing a receipt paper 102 after printing, for example, a cutter (not shown) is arranged at an issue port (not shown). It is common for an operator to cut and issue the receipt paper 102 by hand with a cutter. In contrast, FIG.
As shown in FIG. 2, a cutter 112 which is located on the upstream side of the paper guide path from the issuing port 111 of the receipt paper 102 and is operated by being driven by a driving source (not shown) is arranged. It has been common practice to automatically cut and issue 102.

[0004]

A receipt journal printer having a structure in which an operator manually cuts a printed receipt paper 102 as shown in FIG. 3 or a sheet after printing with a cutter 112 as shown in FIG. In a receipt journal printer having a structure in which the receipt paper 102 is automatically cut, a direction different from the guide conveyance direction of the printed receipt paper 102 before cutting, in particular, a paper width direction which is a direction orthogonal to the traveling direction of the receipt paper 102, is used. The platen roller 105 and the thermal printer head 1
01 at the nip portion 106 or the like.
02 is displaced, and there is a problem that the receipt paper 102 meanders during subsequent printing, and paper jam occurs when the deviation is excessive. In particular, in the receipt journal printer as shown in FIG. 4, even after the receipt paper 102 is cut in the paper width direction after the receipt paper 102 is cut by the cutter 112, the positional deviation of the receipt paper 102 in the nip portion 106 or the like occurs. I can't get it. However, during actual use, the cutter 112
Paper 1 before cutting the receipt paper 102
02 is sometimes pulled in a direction different from the guide conveyance direction, and in such a case, the positional deviation of the receipt paper 102 in the nip portion 106 or the like occurs.

An object of the present invention is to provide a printer which can prevent the meandering of the roll paper and the occurrence of paper jam even if the roll paper is pulled in a direction different from the guide conveyance direction when the roll paper is issued. Aim.

[0006]

According to a first aspect of the present invention, there is provided a printer for guiding and conveying a long roll paper to an issuing port by using a paper feeding member, and reaches the issuing port. The printing unit arranged on the roll paper guide path, the cutter arranged upstream of the guide path from the issuing port, and the guide wall arranged at the issue port and extending in the roll paper transport direction, the paper width of the roll paper A guide member for restricting movement in the direction.

Therefore, when the roll paper is issued from the issuing port, if the roll paper is pulled in a direction different from the guide conveyance direction before the roll paper is cut by the cutter, the side end of the roll paper is attached to the guide wall. The collision prevents the roll paper from being deformed in a direction different from the guide conveyance direction due to the stiffness of the roll paper. Thus, for example, even if the roll paper is not displaced in the nip portion or the like in the printing section and the roll paper is pulled in a direction different from the guide conveyance direction before the roll paper is cut by the cutter, the subsequent roll paper is not moved. Meandering and paper jam are prevented.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. This embodiment is an example of application to a receipt journal printer that prints predetermined items on a receipt paper 2 and a journal paper 3 as roll paper by one line type thermal printer head 1.

First, receipt paper 2 and journal paper 3
Are rolled up and held coaxially, pulled out and conveyed by a rubber roller 4 as a paper feed member, respectively, and constituted by a platen roller 5 also as a paper feed member and a thermal printer head 1. Part 6
Has been guided to. In the printing unit 6, the receipt paper 2 and the journal paper 3 are guided to a nip 7 which is a portion between the platen roller 5 and the thermal printer head 1. The receipt paper 2 after the printing of the predetermined items is guided and conveyed to the issuing port 8 by the thermal printer head 1, and the journal paper 3 after the printing of the predetermined items is guided by the journal winding shaft 9 and wound up. Therefore, the rubber roller 4, the platen roller 5 and the journal winding shaft 9 constitute a roll paper guide / conveyance unit 11 for guiding / conveying the receipt paper 2 and the journal paper 3 to the guide path 10.

Next, a cutter 12 and a guide member 13 are disposed in the issuing port 8 of the printed receipt paper 2. That is, the cutter 12 is, for example, a guillotine-type auto cutter that operates by being driven by a driving source (not shown).
It is positioned on the upstream side of the guide route 10 from the issuing port 8. The guide member 13 has a structure in which the movement of the receipt paper 2 in the paper width direction is regulated by a guide wall 14 extending in the transport direction of the receipt paper 2.

In such a configuration, the receipt paper 2
The journal paper 3 is guided and conveyed along the guide path 10 by the roll paper guide / conveying means 11, and predetermined items are printed by the thermal printer head 1 in the printing unit 6. The receipt paper 2 after the printing of the predetermined items is automatically cut by the cutter 12 and issued from the issuing port 8, and the journal paper 3 is wound around the journal winding shaft 9 and stored.

Here, when the receipt paper 2 is issued from the issuing port 8 before the receipt paper 2 is cut by the cutter 12 in a direction different from the guide conveyance direction, if the receipt paper 2 is pulled, Since the side end abuts against the guide wall 14, the receipt paper 2 is prevented from being deformed in a direction different from the guide conveyance direction due to the stiffness of the receipt paper 2. Thereby, for example, even if the receipt paper 2 is not misaligned in the nip portion 7 or the like of the printing unit 6 and the receipt paper 2 is pulled in a direction different from the guide conveyance direction before the receipt paper 2 is cut by the cutter 12. , Then receipt paper 2
Meandering and paper jam are prevented.

The guide wall 14 of the guide member 13 is
In the present embodiment, it is formed in a shape that surrounds the issuance opening 8, but in implementation, it may be formed only in a position that restricts the movement of the receipt paper 2 in the paper width direction.

[0014]

According to the first aspect of the present invention, a guide member that regulates the movement of the roll paper in a direction different from the guide conveyance direction is provided by the guide wall extending in the roll paper conveyance direction. When roll paper is issued from the mouth,
Even if the roll paper is pulled in a direction different from the guide transport direction before the roll paper is cut by the cutter, the side edge of the roll paper abuts against the guide wall and the roll paper is deformed in a direction different from the guide transport direction. Thus, for example, it is possible to prevent the roll paper from meandering and the occurrence of paper jam due to the displacement of the roll paper at the nip portion or the like in the printing unit.

[Brief description of the drawings]

FIG. 1 is a schematic vertical sectional side view of a receipt journal printer showing an embodiment of the present invention.

FIG. 2 is a schematic perspective view thereof.

FIG. 3 is a schematic perspective view of a conventional receipt journal printer.

FIG. 4 is a schematic perspective view of a conventional receipt journal printer provided with an automatic cutter.

[Explanation of symbols]

 2 Roll paper 4 Paper feed member 6 Printing section 8 Issuance port 9 Guide path 10 Roll paper guide / conveying means 11 Cutter 12 Guide member 13 Guide wall

Claims (1)

[Claims] A roll paper guide / conveying means for guiding / conveying a long roll paper to an issuing port by using a paper feeding member; and a printing unit arranged on a guide path of the roll paper reaching the issuing port. A cutter disposed upstream of the guide path with respect to the issuing port; and a guide disposed at the issuing port and configured to restrict the movement of the roll paper in the paper width direction by a guide wall extending in the transport direction of the roll paper. And a member.