JPH0310865A - Serial printer - Google Patents

Abstract

PURPOSE:To shorten a printing time when printing is applied to an elongated recording medium by providing the first recording medium feed means capable of feeding the recording medium in the direction crossing the moving direction of a printing head at the right angle and the second recording medium feed means capable of feeding the recording medium in parallel to the moving direction of the printing head. CONSTITUTION:When printing is applied to a wide recording medium 6, the recording medium 6 is held between the first feed roller 2 and a press roller 4 and a character or figure is printed on the recording medium 6 while a printing heal 1 is moved. When printing is applied to a narrow recording medium 7, the recording medium 7 is held between the second feed roller 3 and a press roller 5 and the printing head 1 is moved to the position opposed to the printing surface 3a of the second feed roller 3. Then, the second feed roller 3 is rotated to feed the narrow recording medium 7 in the direction shown by an arrow D. At this time, printing is performed by the printing head 1 in synchronous relation to the feed of the narrow recording medium 7 in the direction shown by the arrow D.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a printer that prints characters, figures, etc. on a recording medium such as paper or film. Regarding serial printers.

[Conventional technology]

As a conventional serial printer, there is known a serial printer as disclosed in Japanese Patent Publication No. 63-25953, which has a feed roller as a recording medium feeding means capable of feeding the recording medium in a direction perpendicular to the direction of movement of the print head.

[Problem to be solved by the invention]

However, in the above-mentioned serial printers, printing is performed by moving the print head left or right, and then feeding the recording medium by a predetermined amount, which is repeated several times. There is a problem in that it takes time to print on a tape-shaped recording medium.

Therefore, the present invention is intended to solve these problems, and its purpose is to be able to print ordinary documents, figures, etc., and to shorten the printing time when printing on tape-shaped recording media. It is located in a place that provides serial printers.

[Means to solve the problem]

The serial printer of the present invention is a serial printer that moves a print head to print characters, figures, etc. on a recording medium, and includes a first recording medium feeder that allows the recording medium to be fed in a direction perpendicular to the moving direction of the print head. and a second recording medium feeding means capable of feeding the recording medium parallel to the moving direction of the print head.

[Effect]

According to the above configuration of the present invention, when printing on a normal wide recording medium, printing is performed while moving the print head to the left or right, and then printing is performed in a direction perpendicular to the direction of movement of the print head. The recording medium is fed by a predetermined amount by the first recording medium feeding means capable of feeding the medium, and characters, figures, etc. are formed and printed. When printing on long and narrow recording media,
The print head does not move, and printing is performed while the recording medium is fed by a second recording medium feeding means that is capable of feeding the recording medium parallel to the moving direction of the print head. This eliminates the need to move the print head, making it possible to shorten printing time.

〔Example〕

FIG. 1 is a perspective view of an embodiment according to the invention, and FIG. 2 is a plan view of the embodiment. Reference numeral 1 denotes a print head capable of printing a plurality of dots in a line, and is movable in the directions of arrows A and B by external means (not shown). A first feed roller 2 is a first recording medium feeding means, and an external means (not shown) is used to feed the recording medium in a direction perpendicular to the moving direction of the print head 1 (direction of arrow C). ) can be rotated in the direction of arrow E. 3 is a second feed roller which is a second recording medium feeding means;
It is rotatable in the direction of arrow F by external means (not shown) so that the recording medium can be fed in a direction parallel to the direction of movement (direction of arrow F). Further, the first feed roller 2 and the second feed roller 3 also serve as platens, and the printing surfaces 2a and 3a are in the same plane. Reference numeral 4.5 denotes a pressing roller, which is pressed against the first feed roller and the second feed roller by springs or the like (not shown), and grips the recording medium to obtain a feeding force for the recording medium.

FIG. 3 is a perspective view when printing is performed on a wide recording medium. 6 is a wide recording medium. First, a wide recording medium 6 is held between the first feed roller 2 and the press roller 4. Characters or figures are printed while moving the print head 1 in the direction of arrow A or arrow B.

Next, when printing for one movement of the print head 1 is completed, the first feed roller 2 is rotated by a predetermined amount in the direction of arrow E, thereby feeding the wide recording medium 6 by a predetermined amount in the direction of arrow C. This operation is repeated several times to print one page's worth of characters, figures, etc.

FIG. 4 is a perspective view when printing is performed on a narrow recording medium. 7 is a narrow recording medium. First, the narrow recording medium 7 is held between the second feed roller 3 and the presser roller 5. Next, the print head 1 is moved to a position facing the printing surface 3a of the second feed roller 3. By rotating the second feed roller 3 in the direction of arrow F, the narrow recording medium 7 is fed in the direction of arrow F. At this time, printing is performed by the print head 1 in synchronization with feeding the narrow recording medium 7 in the direction of the arrow. Instead of moving the print head 1, a narrow recording medium 7 is moved to compose and print characters, figures, etc.

In this embodiment, the feed roller also serves as the platen, but even if the feed roller and platen are independent, the first feed roller is capable of feeding the recording medium in a direction perpendicular to the direction of movement of the print head. Naturally, the same function can be achieved if two feed rollers, the second feed roller capable of feeding the recording medium in parallel to the moving direction of the print head, are provided. For example, FIG. 5 is a perspective view of another embodiment of the present invention. 1 is a print head capable of printing a plurality of dots in a line; 2 is a first feed roller which is a first recording medium feeding means capable of feeding the recording medium in a direction perpendicular to the moving direction of the print head 1; and 4 is a first feed roller. It is a presser roller. 31 is a second feed roller which is a second recording medium feeding means capable of feeding the recording medium parallel to the moving direction of the print head 1, and 51 is a presser roller. Presser roller 4
．． 51 are in pressure contact with the first feed roller 2 and the second feed roller 31, respectively, to sandwich the recording medium and obtain a feeding force for the recording medium. 9 is a platen and the printing surface 9
a is in the same plane as the printing surface 2a of the first feed roller 2 which also serves as a platen. Further, the contact surfaces of the second feed roller 31 and the presser roller 51 are also printed on the printing surfaces 2a and 9.
It is in the same plane as a. To explain the operation of this embodiment, when printing on a wide recording medium using the first feed roller 2, the operation is the same as that described in FIG. 6 above using FIG. When printing a narrow recording medium 8, the narrow recording medium 8 is first held between the second feed roller 31 and the presser roller 51.

Next, the print head 1 is moved to a position facing the printing surface 9a of the platen 9. By rotating the second feed roller 31 in the direction of arrow F, the narrow recording medium 8 is fed in the direction of arrow F. At this time, printing is performed by the print head 1 in synchronization with feeding the wide recording medium 8 in the direction of the arrow. Instead of moving the print head 1, a narrow recording medium 8 is moved to compose and print characters, figures, etc.

With this configuration, even if the recording medium is thick and stiff, there is no need to bend the recording medium, so printing is possible.

Although the present invention has been described above using a dot head that prints characters, figures, etc. using a dot matrix, there is no problem if a type-type head is used as the print head. Further, although the description has been made using a feed roller as the recording medium feeding means, there is no problem even if the recording medium feeding means is, for example, a belt, as long as the recording medium can be fed.

〔Effect of the invention〕

As described above, according to the present invention, a serial printer includes a first recording medium feeding means capable of feeding a recording medium in a direction perpendicular to a direction of movement of a print head, and a first recording medium feeding means capable of feeding a recording medium in a direction perpendicular to a direction of movement of a print head; With the simple structure of providing two recording medium feeding means, the second recording medium feeding means capable of feeding the medium, it is possible to print on a normal wide recording medium and to print on a narrow recording medium at high speed. This has the effect of being able to provide a single serial printer compactly and at low cost.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a serial printer according to the present invention. FIG. 2 is a plan view of FIG. 1. FIGS. 3 and 4 are perspective views illustrating the operation of an embodiment of the present invention. FIG. 5 is a perspective view showing another embodiment of the invention. 1... Print head 2... First feed roller 3.31 ・
・・Second feed roller first drawing angle or more

Claims (1)

[Claims] A serial printer that moves a print head to print characters, figures, etc. on a recording medium includes a first recording medium feeding means capable of feeding the recording medium in a direction perpendicular to the moving direction of the print head; A serial printer characterized by having a second recording medium feeding means capable of feeding the recording medium parallel to the moving direction.