KR100437167B1 - a inkjet printer in which a carriage is mounted in longitudinally - Google Patents

Abstract

An inkjet printer in which the carriage of the present invention is disposed vertically includes a carriage shaft and an upper guide, both ends of which are provided in a left and right frame of the printer; A carriage frame having a lower portion and an upper portion supported by the carriage shaft and an upper guide; First and second carriages having a rear surface facing each other and installed in the same direction as the conveying direction of the paper so that the two cartridges can be separately attached to the front and rear of the printer; And first driving means for transferring the first and second carriages from side to side. Preferably, the driving means includes a drive motor configured to transfer power of the drive motor and the drive motor installed at the lower end of the printer frame to the carriage shaft. The driving means may include a driving motor installed at a lower end of the printer frame and a timing belt which transmits power of the driving motor to the carriage frame.

Description

Inkjet printer in which a carriage is mounted in longitudinally}

The present invention relates to an inkjet printer, and more particularly to an inkjet printer in which the carriage is installed vertically.

In the general inkjet printer, as shown in FIG. 1, a carriage frame 15 is installed inside the printer frame 21, and the first and second cartridges (not shown) may be mounted on the carriage frame 15. The second carriages 12 and 14 are provided horizontally.

The carriage frame 15 is supported by the carriage shaft 15 and the upper guide 18, both ends of which are fixed to the left and right frames 22 and 23 of the printer, and are printed with the timing belt 20 and the printer frame. (21) It is moved in the left-right direction by the drive motor 34 provided on the rear surface.

The maintenance unit 30 is generally installed at a lower side of one side of the printer frame 21 and two wipers 32 for wiping ink heads (not shown) of the cartridges mounted on the carriages 12 and 14. ) Is provided.

The paper sheet feeding apparatus includes a paper feeder 24 provided at the rear of the carriage frame 15, a feed roller (not shown), a deflection roller 26, and a discharge roller 28. When the paper is mounted on the feed tray 24, the paper is transferred to the printer position by the feed roller and the deflection roller 26, and when the printing is completed, the paper is discharged by the discharge roller 28.

In this way, the inkjet printer in which the first and second carriages 12 and 14 are installed in the horizontal direction, that is, perpendicular to the conveying direction of the paper, requires twice as much space as the ink carriage width when printing the same size paper. The wider range of printer engines has led to price increases for inkjet printers.

In addition, such a conventional inkjet printer has a disadvantage in that it takes a lot of printing time because the color ink head and the mono ink head have to repeatedly print one printing path in order to prevent a bleeding phenomenon during color printing.

In order to solve such a problem of the prior art, the applicant has filed in 1999 (application number P1999-41249) a cartridge device of an ink jet printer configured by vertically arranging a carriage such that a cartridge mounting port faces the front of the printer.

However, the present invention has the effect of increasing the printing speed, but since the carriages are arranged vertically with the same direction, two cartridges must be removed at the same time when the cartridge is detached, and the cartridge contact tube is installed separately from the first and second carriages. There has been a problem that the manufacturing cost of the printer is increased.

In addition, since the cartridges must be mounted in the same direction, the distance between the ink heads increases, which increases the space of the printing unit, which causes a problem in that the printing quality is lowered.

SUMMARY OF THE INVENTION An object of the present invention devised to solve the problems of the prior art as described above and the problems of the prior application of the present applicant is to improve the printing speed, reduce the width of the printer engine, and reduce the manufacturing cost of the first and second cartridges. It is an object of the present invention to provide an inkjet printer in which a carriage configured to be detachable in a front and rear direction is installed vertically.

The present invention also provides an inkjet printer in which a carriage having excellent printing quality is vertically installed even if the printing speed is increased.

1 is a perspective view showing a conventional inkjet printer,

2 is a schematic view of the inkjet printer in which the carriage of the present invention is installed from the front, as viewed from the front,

3 is a schematic side view of an inkjet printer in which the carriage of the present invention is installed vertically;

4 is a schematic view showing another embodiment of the inkjet printer in which the carriage of the present invention is installed vertically.

<Description of the symbols for the main parts of the drawings>

50: first carriage 52: second carriage

54: carriage shaft 53, 55: left, right frame

56: upper guide 58: encoder strip

60: drive motor 62: maintenance unit

64: wiper 66: drive belt

68,69: first and second cartridge 70: head contact tube

68a, 69a: inkhead

In order to achieve the object of the present invention as described above, the inkjet printer in which the carriage of the present invention is disposed vertically, the carriage shaft and the upper guide is provided at both ends of the left and right frame of the printer; A carriage frame having a lower portion and an upper portion supported by the carriage shaft and an upper guide; First and second carriages having a rear surface facing each other and installed in the same direction as the conveying direction of the paper so that the two cartridges can be separately attached to the front and rear of the printer; And driving means for transferring the first and second carriages from side to side.

Preferably, the driving means includes a drive belt which transfers power of the drive motor and the drive motor to the carriage shaft.

In addition, the driving means, a timing belt for transmitting the power of the drive motor and the drive motor to the carriage frame; may be configured to include.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 2 is a front view of the inkjet printer in which the carriage of the present invention is installed vertically.

As can be seen from the figure, in the present invention, the first and second carriages 50 and 52 are supported by the upper guide 56 and the carriage shaft 54. The upper guide 56 and the carriage shaft 54 are fixed to the printer side frames 53 and 55, and one side of the carriage shaft 54 protrudes a predetermined distance out of the printer side frame 53.

That is, the present invention is configured to remove the printer rear frame of the prior art so that the cartridge (68, 69) can be attached to each carriage (50, 52) (see Fig. 3). An encoder strip 58 is provided between the upper guide 56 and the carriage shaft 54, and the maintenance unit 62 is installed at the lower side of one side of the printer.

The maintenance unit 62 is provided with one wiper 64. This wiper 64 wipes two ink heads 68a and 69a (see FIG. 3) simultaneously. This is possible because the first and second carriages 50 and 52 are installed with their rear surfaces facing each other. In addition, a driving motor 60 is installed at the lower end of the maintenance unit 62, and the driving belt 66 is connected to the shaft 60a of the driving motor and one side 54a of the carriage shaft 54. Is provided.

Fig. 4 is a schematic side view of the ink jet printer of the present invention, in which the cartridges 68, 69 are mounted on the first and second carriages 50, 52. Figs.

As can be seen in the figure, the first and second carriages 50 and 52 are mounted on the carriage frame 72 so that the rear surfaces face each other, and at the bottom the carriage shaft 54 supports the carriage frame 72. At the upper end, the upper guide 56 is supported to prevent rolling.

Since the rear surfaces of the first and second carriages 50 and 52 face each other, the first and second cartridges 68 and 69 also have the first and second carriages 50 in the same direction as the paper advance direction. 52, the ink heads 68a, 69a of the cartridges 68, 69 are also located close to each other in the same direction.

Head contact tube 70 is installed so as to face in parallel to each other can reduce the manufacturing cost compared to separately installed in the prior art. At the lower ends of the carriages 50 and 52, a feed roller 78 and a deflection roller 76 for supplying paper are arranged, and a discharge roller 74 for discharging the printed paper is provided.

In the inkjet printer in which the carriage of the present invention configured as described above is installed vertically, the width of the printer can be reduced by twice the width of the carriage, compared to a conventional inkjet printer arranged horizontally, and there is no rear frame of the printer and the rear of the carriage is mutually Since they are installed facing each other, not only can manufacturing cost be reduced, but also the cartridge can be mounted and removed from the carriage before and after the printer.

Looking at the operating relationship of the present invention, after moving the paper in the paper feed port (not shown) by the deflection roller 76 and the feed roller (78) to the printer position, the drive motor 60 is operated to drive belt Power 66 transfers power to the carriage shaft 54 and moves the carriage frame 72 to the left and right of the printer.

In the carriages 50 and 52 installed in the carriage frame 72, ink cartridges 68 and 69 are mounted, and the ink heads 68a and 69a of the cartridge are located close to each other in the same direction as the paper feed direction. Ink can be ejected and printed simultaneously from two ink heads 68a and 69a in one movement.

In addition, since there is no rear frame of the printer when the ink cartridge is mounted, the first cartridge 68 is mounted on the first carriage 50 at the front of the printer, and the second cartridge 69 is mounted on the second carriage 52. Can be mounted from the rear of the printer, and the cartridge can be removed as well.

As shown in FIG. 5, the first and second carriages 50 and 52 may be moved by using the driving motor 60 and the timing belt 80. That is, when the driving motor 60 is operated, the carriage frame 72 (see FIG. 3) is moved left and right through the timing belt 80. The driving belt 80 is supported by the first to fourth rollers 81, 82, 83, and 84 installed on the printer side frames 53 and 55, as shown in the figure.

According to the embodiment of the present invention as described above, by arranging the two carriages to face each other in the same direction as the conveying direction of the paper, it is possible to mount or remove the cartridge in the front and rear of the printer.

In addition, by using two ink heads can be printed at the same time, the printing speed is improved, and since the rear frame of the printer can be removed and the width of the printer can be made smaller, manufacturing cost can be reduced.

In addition, the present invention has the effect of improving the printing quality by reducing the space between the print heads because the distance between the ink heads is close.

As described above and described with reference to a preferred embodiment for illustrating the principle of the present invention, the present invention is not limited to the configuration and operation as shown and described as such. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (3)

A carriage shaft and an upper guide provided at both ends of the left and right frames of the printer; A carriage frame having a lower portion and an upper portion supported by the carriage shaft and an upper guide; First and second carriages on the carriage frame, the rear surfaces of which are disposed in the same direction as the conveying direction of the paper so as to face each other so that the two cartridges can be detached and separated separately from the front and rear of the printer; And And a driving means for transferring the first and second carriages to the left and right. The method of claim 1, The driving means, a drive belt for transmitting the power of the drive motor and the drive motor to the carriage shaft; characterized in that the carriage is installed vertically inkjet printer. The method of claim 1, And the driving means includes a timing belt for transmitting power of a driving motor and the driving motor to the carriage frame.