KR19990023702U - Duplex Printable Inkjet Printers - Google Patents

Abstract

The present invention relates to a printer having a pair of print cartridges capable of simultaneously printing on both sides of a sheet during printing operation of an inkjet printer.

According to the present invention, a first cartridge for printing on the front side of the printing paper and a second cartridge for printing on the back side of the printing paper are installed together, so that both sides of the printing paper can be printed simultaneously. Disclosed is an inkjet printer. The first cartridge and the second cartridge perform printing using ink supplied from one ink container.

Description

Duplex Printable Inkjet Printers

The present invention relates to an inkjet printer, and more particularly to an inkjet printer configured to enable duplex printing.

In general, an inkjet printer (hereinafter also referred to simply as a printer) is configured to perform printing by one print cartridge. A predetermined ink used for printing is built in the inside of such a print cartridge, and includes a print head for injecting such ink onto printing paper. The print cartridge is configured to perform a predetermined printing operation while moving left and right with respect to the print paper by a command of a control unit inside the printer.

In a conventional inkjet printer, printing is performed only on one surface of a printing sheet by one print cartridge. According to such a conventional print cartridge and printing method, since only one surface of the printing paper is printed by one print cartridge, the following disadvantages are pointed out.

First, there is a disadvantage that the speed is limited as the printing speed corresponds to one print cartridge. In addition, since printing is performed only on one end face of the printing paper, it is a reality that the speed is followed by a predetermined limit. According to the conventional print cartridge, since the ink is contained therein, the disadvantage is that the ink cartridge itself must be replaced when the ink in the interior is exhausted.

With respect to the problems caused by the above-described conventional structure, in order to further improve the printing speed, it may be considered to constitute a plurality of print cartridges. That is, for example, if the print cartridges are configured in a pair, and the pair of print cartridges are configured to perform printing on two sides at the same time, it is possible to overcome the limitation on the printing speed.

And by configuring the pair of print cartridges to print on both sides (front and back) of the printing paper, it is possible to take advantage of the printing paper to fully utilize.

It is an object of the present invention to provide an inkjet printer capable of providing a fast printing speed.

Another object of the present invention is to provide an inkjet printer capable of reducing printing paper consumption by configuring printing on both sides of the paper at the same time.

1 is a schematic view showing the configuration of an inkjet printer according to the present invention.

Figure 2 is an exemplary view showing an ink supply example of the inkjet printer according to the present invention.

* Explanation of symbols for main parts of the drawings

10 inkjet printer 12 first cartridge

14 second cartridge 20 ink container

According to the present invention for achieving the above object, the first cartridge for printing on the front of the printing paper and the second cartridge for printing on the back of the printing paper are installed together, printable on both sides of the printing paper at the same time Disclosed is an inkjet printer which is configured to be configured.

According to the printer having such a configuration, since printing is performed on both sides of the printing paper at the same time, it is expected that the printing speed is increased and the printing paper can be saved.

According to another embodiment of the present invention, the first cartridge and the second cartridge are configured to perform printing using the ink supplied from one ink container. According to this configuration, the ink can be reused by simply refilling the ink without having to replace the cartridge itself.

Next, the present invention will be described in more detail with reference to the embodiments shown in the drawings.

As shown in FIG. 1, according to the present invention, a pair of printer cartridges 12 and 14 are installed inside the inkjet printer 10. The printer cartridges 12 and 14 are capable of simultaneously printing contents to be output on both sides of the printing paper P by the supplied ink, and are used in the concept of including a printhead for ejecting printing ink. .

In the inkjet printer according to the present invention, since the printing paper is taken out one by one from the paper cassette and the internal mechanism in which the paper is conveyed along a predetermined conveying path is the same as the conventional one, the description of this part will be omitted. . Therefore, in the following description of the present invention, only the installation position of the print cartridge installed in the last part of the feeding path of the printing paper conveyed along the predetermined feeding path will be described.

The first cartridge 12 performs the printing operation on the front surface of the printing paper, that is, the same printing surface as in the prior art, and the second cartridge 14 is the back surface of the printing paper, that is, the portion which is not printed compared with the conventional printing paper. It is for carrying out printing on the back side of the paper. Therefore, according to the present invention, the first cartridge 12 prints the front side of the printing paper and the second cartridge 14 simultaneously prints the back side of the printing paper, so that both sides of the printing paper can be printed. do.

For example, the first cartridge 12 prints the first side of the information to be output on the front side of the printing paper P, and at the same time the second cartridge 14 has the second side of the information to be output on the back side. Will print. Therefore, according to the present invention, it is possible to provide twice the printing speed as compared with the conventional one.

In this case, the first cartridge 12 and the second cartridge 14 should be installed at a position capable of simultaneously printing on both sides of the paper on a path moving through the feeding path in the paper cassette of the printer. .

Next, the supply of ink to the first cartridge 12 and the second cartridge 14 according to the present invention will be described with reference to FIG. 2.

Since a conventional cartridge contains ink therein, when the ink is used up, all of the cartridges themselves have to be replaced. In contrast, the cartridges 12 and 14 according to the present invention perform printing while receiving printing through the supply pipe 22 in one ink container 20.

As shown in FIG. 2, the first cartridge 12 and the second cartridge 14 perform printing operations through ink urgently supplied from the supply pipe 22, respectively. The ink container 20 contains ink for performing printing and simultaneously supplies ink to the first cartridge 12 and the second cartridge 14 through the supply pipe 22.

Using the separate ink container 20 in the present invention, when the ink inside the ink container 20 is exhausted, only the ink can be refilled in the container (20) It is to eliminate waste, unnecessarily replacing all of the cartridges. In addition, in the case where ink is supplied from the ink container 20 to the cassettes 12 and 14, an apparatus for supplying ink at a constant pressure to the ink container may be required to supply ink constantly.

In operation of the present invention, the first cartridge 12 and the second cartridge 14 are basically configured to operate at the same time, but it will be possible to selectively operate only one cartridge. For example, when printing for a report, it may be possible to control printing on only one surface.

According to the present invention configured as described above, when printing a single sheet of printing paper, since the contents are printed on the front and rear surfaces of the paper at the same time, it can be seen that the printing speed is improved as compared with the prior art.

In addition, according to the present invention, since it is basically printed together on the front and back of the printing paper, there is an advantage that can reduce the consumption of the paper.

In addition, when the ink in the ink container 20 is exhausted, there is an advantage that it can be used by refilling the ink in the ink container 20 without replacing the entire print cartridge.

Claims (2)

An inkjet printer, comprising: a first cartridge for printing on a front surface of a printing paper and a second cartridge for printing on the back surface of a printing paper are configured to print on both sides of the printing paper at the same time. The inkjet printer of claim 1, wherein the first cartridge and the second cartridge perform printing using ink supplied from one ink container.