JPS58153666A - Dot printer - Google Patents

Abstract

PURPOSE:To elongate the life of ink ribbon, in the printer in which a plurality of printing heads are aligned in parallel and the printing is performed by using the common ink ribbon, by arranging the printing heads so that they use the different places of the ink ribbon in the direction of the width. CONSTITUTION:The printing head 1a for printing receipt paper 2a and the printing head 1b for printing journal paper 26 are mounted on a head table 4. The positions of the printing heads are separated by a length B in the direction of the width of the ink ribbon 3. In this constitution, the common ribbon 3 is arranged and used between the printing heads 1a and 1b and the receipt paper 2a and the journal paper 2b. Then the printing heads 1a and 1b use the different places 3a and 3b of the ink ribbon 3. Therefore, the life of the ink ribbon is elongated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an impact type dot printer. More specifically, the present invention relates to a dot printer equipped with a plurality of print heads.

Conventionally, impact type dot printers used for moR (money register) etc. print Subi-Y.

In order to speed up the process, there are ways to develop and use faster print heads, and ways to use receipt paper (receipts) and journal paper (
A method is used in which two print heads are provided, each corresponding to the printing paper placed at two locations on the recording paper. The inking device used in such a dot printer uses an ink cartridge, and has the drawback of poor durability such as poor durability of the ink and wear of the ribbon material. For example, in endless ribbons that are stored in a case or in a cassette, only the center portion of the ribbon fabric is used, and the durability of the ribbon is poor. There is a method of arranging the 91-linker cassette and the ribbon device diagonally in order to use the entire surface of the ribbon, but this method has the drawbacks that the ribbon device is complicated and the replacement operation is difficult. l! For inklidan, which is wound on a spool in a mirror shape, use the top side of the ribbon fabric, and when the ink rarely runs out, replace the ink upside down and use the unprinted or inner fabric part. However, this method has disadvantages in that the ribbon exchange operation is time consuming, and the structure of the ribbon device is complicated and the cost is high.

The present invention is intended to eliminate such drawbacks, and its purpose is to increase the printing speed of printers used for Xa* etc. and to improve the durability of ink 91.

The present invention provides a dot printer that is equipped with multiple print heads to increase the speed of the printer, uses the entire surface of the ink ribbon to print, is easy to operate, has an inexpensive ribbon device, and has a long lifespan. It provides:

The present invention will be described in detail below based on Examples.

Figures 1 and 2 II j Figure 5 show the original W110-actual
They are a front view, a plan view, and an iww view of an example. 1101 printer, the print head 11 prints on receipt paper 2S and journal paper! Each is provided with a print head 1h for printing on birds;
It is mounted on two head stands 4. The head stand 4 is structured to reciprocate between the arrows using a guide shaft 5 as a guide and using other power (explanation will be omitted here). During this back and forth, the print head is energized at a predetermined timing, and the characters and
Print symbols etc. On the front side of the receipt paper and journal paper, there is an ink ribbon 5 stored in a ribbon force set 1-5c. Here, as shown in the positive mm of the first wi, each print head has one dimension, and the print head 1a is arranged on the upper surface and the print head 1b is arranged on the lower surface with respect to the width direction of the ink ribbon 5. There is.

Therefore, when printing is performed, the print head 1m uses the upper surface portion 5a of the ink ribbon, and the print head 1b uses the lower surface portion 5b.

FIGS. 4 and 5 show a front view and a plan view of another embodiment. To explain in detail, the
A print head for printing is made up of print head units each having one wire arranged in parallel in the horizontal direction.

Each head is provided with four enits, and predetermined printing is performed while the heads are reciprocated from side to side. Now, to parallel printing on paper (register) □As in the previous embodiment, the upper surface of the ribbon is used for the print head 101a, and the lower surface of the parallel print head 101h for the journal is used. In this way, by placing the νF position on the top and bottom of the fabric, the two print heads and multiple prints provided to increase the speed of the printer can be effectively used to print clearly. By using the top and bottom surfaces of the sponge material, we can provide a highly durable dot printer with less wear on the ink ribbon.Furthermore, it is also possible to install a 9-inch cassette. Therefore, it is possible to provide a dot printer which has an inexpensive printing device that is easy to operate and allows the use of the entire surface of the printing material.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the present invention at 111 m. FIG. 2 is a plan view thereof, FIG. 3 is a *m diagram thereof, FIG. 4 is a front view of another embodiment, and FIG. 5 is a plan view thereof. 1α...Print head 1h for receipt paper...
...Journal paper print head 2g...Reggie) paper 2k...Journal paper 3...Ink ribbon 5 e---...Ribbon cassette 4.・・・・・・・・・Head stand 5・・・・・・Guide shaft 6・・・・・・Platen 101G・・・Parallel print head 1 for receipt paper
01h・・・Parallel print head for journal paper and above Agent Tsutomu Mogami, patent attorney

Claims (1)

[Claims] In a dot printer in which a plurality of corresponding print heads are provided on printing paper arranged in several places through inkliners, 4kktl of the printhead is used at different places in the width direction of the inklin fabric. A dot printer characterized by being arranged in a similar manner.