JPH0412232B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application The present invention relates to an inkjet recording device, and in particular, it is capable of achieving monochrome and color copies at low cost.

b. Prior Art A typical conventional inkjet recording apparatus is one in which ink contained in an ejection nozzle is ejected using a piezoelectric element or the like.

c Problems to be Solved by the Present Invention In the conventional configuration as described above, a large number of nozzles are provided, but since the entire nozzle is not constantly moistened with ink, it may dry out and clog the nozzle. This occurred and appeared as white spots when printed, which was extremely inconvenient.

d Means for Solving the Problems The present invention aims to provide extremely suitable means for eliminating the above-mentioned drawbacks. An ink-impregnated body provided in an ink guide body for constantly impregnating ink in an ink-impregnated body provided in an ink guide body and the ink-impregnated body and the ink guide, in an apparatus for recording by ejecting ink stored in a micro-concave portion onto a recording paper using heat generated by a thermal head. This configuration includes an ink tank containing ink for supplying ink to the body.

e Effect: The ink supplied from the ink tank is supplied to the ink-impregnated body through the ink guide body, and is also supplied into the micropores or micro-recesses of the tape that slides on the ink-impregnated body, and is supplied to the thermal head. Recording is performed by ejecting ink within the micropores or microrecesses onto the recording paper due to heating.

f Example The inkjet type recording apparatus according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a sectional view showing an inkjet type recording apparatus according to the present invention, which is particularly applicable to a line printer. A pair of elongated ink guide bodies 1, 1 are held and fixed by a pair of holders 2, and an ink impregnated body 3 made of felt or the like is provided on the end face of each ink guide body 1, 1. The extension portion 3a of the ink-impregnated body 3 is immersed in the ink 4 in the ink guide body 1 through the guide hole 1a of the ink guide body 1, and the ink 4 is sufficiently absorbed into the ink-impregnated body 3 by capillary action. Impregnated.

This ink guide body 1 is connected to an ink tank 6 provided in the main body (not shown) via a pipe 5, and any excess ink supplied from this ink tank 6 is removed from the ink guide body 1. It overflows and is guided into the surplus tank 7.

The base 6a of the ink tank 6 is attached to the holding portion 9 of the tank holder 8 so as to be movable up and down as shown by the arrow, and is actuated by known electric means (not shown).

A float 10 made of aluminum or the like is floated in the ink tank 6, and a plurality of position sensors 11, 12, 13 are provided on the tank holder 8 at different height positions. The settings are such that when the position sensor 11 is moved, it is used to send a large amount of ink, when the position sensor 12 is used, it is used for normal use, and when the position sensor 13 is used, it is used when removing ink.

The configurations shown in FIGS. 2 and 3 show a state in which a tape reel 15 for winding a tape 14 is rotatably attached to the configuration shown in FIG. 1, and this tape 14 is made of heat-resistant polyimide or metal. It is made of foil and has a large number of micropores 16 or microrecesses (not shown) as shown in FIGS. Even if one microhole 16 becomes clogged, the entire pixel corresponding to one heating dot element 17a will not become a white spot, and the image quality will hardly be affected. It is.

Therefore, in the configuration shown in FIG. 3, the pair of ink guide bodies 1, 1 are disposed facing each other at a distance from each other, and the tape 14 wound on each tape reel 15 is
The tape 14 wound around each tape reel 15 is slidably disposed in contact with each ink impregnated body 3 of each ink guiding body 1, 1, and the tape 14 is slid by rotating each tape reel 15. By doing so, the ink 4 is stored in each of the pores 16 of the tape 14. The thermal head 17 provided on the main body 18 is interposed between the ink guide bodies 1, 1, and the tape 14 is joined to the heating dot element 17a of the thermal head 17.

FIG. 6 is a perspective view corresponding to the cross-sectional view of the line printer in FIG. A press member 19 is shown through a tape 14, and a supply pipe 20 and a discharge pipe 21 for supplying and discharging ink are provided within the ink guide body 1. Note that it is also useful when this discharge pipe 21 is not used.

FIG. 8 shows another embodiment of the configuration shown in FIG.
is the link rod 2 connected to the float 10 inside the ink tank 6.
4, and the position of the float 10 can be read with a potentiometer 22.

To describe the case where the above configuration is operated, the ink 4 supplied from the ink tank 6
is impregnated and supplied to the ink-impregnated body 3 via the ink guide body 1, and the tape 1 is supplied by rotating the tape reel 15.
4 in each microhole 16 of the tape 14 by sliding the
The ink 4 is always stored in the ink, and the heating dot element 17 of the thermal head 17 is activated according to the recording signal.
By generating heat in a, ink is ejected onto recording paper (not shown) and recording (printing) is performed. A single color configuration facilitates monochrome printing, and a four color configuration facilitates color printing.

g. Effects of the Invention According to the present invention, since there is an ink tank, it is possible to prevent printing mistakes during printing, and a large amount of printing can be performed, and ink is constantly supplied from the ink tank to constantly slide the tape. As a result, there is no drying of the tape's micropores, and clogging can be completely prevented.

[Brief explanation of drawings]

The drawings show an inkjet recording device according to the present invention, and FIG. 1 is a cross-sectional view showing the whole, and FIG.
The figure is a sectional view showing the main part of Fig. 1, Fig. 3 is a sectional view taken along line A-A in Fig. 2, Fig. 4 is a partial plan view showing the relationship between the tape and the thermal head, and Fig. 5 is a sectional view showing the main part of Fig. 1. 4 is a side sectional view, FIG. 6 is a perspective view showing the state shown in FIG. 3, FIG. 7 is a sectional view showing another embodiment of the ink guide, and FIG. 8 is another embodiment of the ink guide body shown in FIG. It is a sectional view showing an example. 1 is an ink guiding body, 2 is a holding body, 3 is an ink-impregnated body, 4 is ink, 6 is an ink tank, 14 is a tape, and 17 is a thermal head.

Claims (1)

[Claims] 1 In a device that records by ejecting ink contained in a large number of micropores or microrecesses formed in a movable tape onto recording paper using heat generated by a thermal head, an ink guide provided in the ink guide and constantly impregnated with ink is used. and an ink tank containing ink for supplying ink to the ink impregnated body and the ink guiding body, the ink supplied from the ink tank passing through the ink guiding body. An inkjet type recording device configured to be supplied to an ink-impregnated body and into the micropores or micro-recesses of the tape that slides on the ink-impregnated body.