JPS5878788A - Dot printer with single slip guide - Google Patents

Abstract

PURPOSE:To simplify the mechanism of a dot printer for making the printer inexpensive by using paired rollers provided above a printing head as ones to deliver two kinds of papers in the dot printer capable of using a continuous paper and a single slip paper. CONSTITUTION:A single slip guide 6 is provided rotatably around a shaft 7 above paired rollers 3 (3a and 3b) provided above a printing head 1 and a platen 2. In such a device, when printing is made on a single slip paper (i), the opening portion of the single slip guide 6 is turned onto the paired rollers 3, a single slip paper 8 is inserted into the guide 6 and brought down to a printing position, printing is made while returning the single slip paper 8 into the guide 6 by the rotation of the roller 3 each time printing for one line is finished. Also, when printing is made on a continuous paper (ii), the single slip guide 6 is turned around the shaft 7 and retreated, widthwise direction of the continuous paper 9 is positioned by a tractor and its tip is held by the rollers 3, and printing is made while sending the continuous paper 9 upwardly by the rollers in the same way as in the foregoing. (4 is cutter).

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved dot printer, and more specifically, to a dot printer with a cut guide that can use not only continuous paper but also cut paper. Most printers use one type of slip paper, and the only one that can use both is a dot printer for continuous paper that is equipped with a cut-sheet input function so that it can also use cut paper. There is something.

Jin's dot printer prints on continuous paper set between a printing spatula P and a platen placed opposite it, and positions and transports the continuous paper using a pair of tractors placed above and below this platen. I am told to do it. After printing, the continuous paper is cut with a cutter installed between the platen and the upper tractor.
Ru. This is done manually.

When such a dot printer prints on paper, a dot inserter for inserting the paper is attached above the upper tractor. This sheet inserter consists of a sheet guide and a pair of rollers. The cut guide is used to determine the insertion position of the cut paper. A pair of rollers are provided at the lower end of the cut guide for holding and conveying the paper cut, and usually receive rotational force from the upper tractor section. When printing, a cut sheet is inserted into the cut guide, and a pair of rollers are rotated to lower the cut sheet to the printing position tt. When the dot printer is operated at that position, printing starts, and the printed paper is pushed back into the paper guide by a pair of rollers.

Conventionally, it was possible to use not only continuous paper but also cut paper in this way, but this dot printer requires a transmitter #I that applies rotational force to a pair of rollers of the cut inserter. In addition to being complicated in terms of its mechanism, it also had the disadvantage of being expensive in terms of cost because the conveying device (an upper tractor and a pair of rollers) was duplicated.

The present invention has been made in view of the above-mentioned drawbacks, and its purpose is to provide a low-cost dot printer with a cut guide by simplifying the mechanism of the conveying device.

Below, l! S! An embodiment of the present invention will be described in detail with reference to J.

A dot printer with a ticket guide according to the present invention is constructed as shown in FIG.

1 is a printing spatula P. This printing spatula P1 is the same as the conventional one, and is configured to move on a shaft (not shown) to print characters, etc. on the set paper (the continuous paper is the cut paper). The 2Vi platen is provided opposite the print head 1 and is used to support the paper when the print head 1 prints on the paper.

3 is a pair of rollers. The pair of rollers are arranged directly above the six-piece printing spatula P1 and the platen 2, and grip the paper after printing and convey it upward. Normally, this roller 3 receives a rotational force from a drive source (not shown) and is rotated by a predetermined amount in accordance with a control signal. Well, this roller 3
There is a knob on the end so that you can turn it 1-1 even manually.

It is a JFi cutter. This cutter 4ij is for cutting continuous paper, and is installed on the platen 2 so that its tip protrudes above the roller 3b. This tip is shaped like a saw blade, for example, to facilitate cutting of the continuous paper.

5 is a tractor. This tractor 5Iri is for positioning the conveyance of the continuous paper, and is disposed below the platen 2. It should be noted that these five tractors are no different from the conventional ones, and like the pair of rollers described above, they receive power from a drive source and are rotated by a predetermined amount in accordance with a control signal.

6 is a cut guide. This cut guide 61-j is for positioning insertion of the cut paper, and is connected to the pair of rollers 3.
It is arranged in a phase that moves upwards.

This is done by a shaft 7 pivotally attached to the upper part of the cut guide 6. Follow the lever cut guide 6#i&+ and rotate at the same time as the arrow shown. This may be rotated manually or mechanically or by using a motor or the like. The reason why the cut guide P6 is moved in this way is to facilitate the use of continuous paper, and for this purpose, the cut guide 6 may be slid laterally.

The present invention is constructed as described above, and its operation will be described below.

No. 2N is a diagram showing a dot printer K with a cut guide (hereinafter referred to as a dot printer) printed using cut paper.

First, in order to insert the cut sheet 8 into the cut guide 6, the operator moves the cut guide y6 so that its opening faces onto the pair of rollers 3. Next, the operator inserts the cut sheet 8 into the cut sheet guide P6 and rotates the pair of rollers 6 to move the cut sheet 8 to the printing position 11i! Once the printing position is determined, operate this dot printer to start printing. In this dot printer, when one line is printed by the print head 1, a pair of rollers 3 rotate by a predetermined amount to return the cut sheet 8 into a single guide 6. When printing is completed in this way, the final Ktl cut paper 8r/'i cut guide 6
returned inside. In this case, the tractor 5 is never used.

FIG. 3 is a diagram showing a case 7 in which continuous paper is used.

In this case, the operator loads the continuous paper 9 into this dot printer by rotating the monochrome guide 6, which is an obstacle, 90° counterclockwise around @7 and moving the tractor 5. The continuous paper 9 is fixed according to the print position and the width of the continuous paper 9, and the leading end of the continuous paper 9 is held between a pair of rollers 3 and set on the tractor 5. This completes the setting of the continuous paper 9, and the operator then operates this dot printer to print. In this dot printer, when one line is printed by the print head 1, the pair of rollers 6 rotate by a predetermined amount to convey the continuous paper 9 continuously. When printing is completed in this manner, the operator cuts the continuous paper sheet with the cutter 4.

As explained above, according to the present invention (according to the present invention), since a pair of rollers are shared as a conveyance unit for cut paper and continuous paper, an upper tractor is not required, and a drive transmission mechanism to the tractor is also not required. This simplifies the mechanism, thereby reducing manufacturing costs.

Note that the dot printer according to the present invention can sufficiently maintain the printing position on continuous paper using the pair of rollers and the lower tractor even without the upper tractor.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention. FIG. 2 shows the embodiment shown in FIG. 1 printed on cut paper, and FIG. 3 shows the embodiment printed on continuous paper. 1... Printing spatula P 2... Platen 6.5 a, 3 b=-o-ra 4... Cutter 5... Tractor 6... Cut guide 7... Shaft 8... Single purchase paper 9...Continuous paper (7317)

Claims (1)

[Claims] A printing spatula P, a platen provided opposite to this print head, a pair of rollers arranged directly above these to sandwich continuous paper or cut paper and convey it upward, and a tip of the roller that is placed above this roller. K so as to protrude and cut the continuous paper.
a tractor disposed below the platen to determine the transport position of the continuous paper; and a cutter movably disposed above the pair of rollers to determine the insertion position of the cut paper. A dot printer with a cut guide.