JPS587156A - Recording device - Google Patents

Abstract

PURPOSE:To enhance resolution of a recorded image, by using a recording electrode made of magnetic material, providing a magnet near the electrode, and bringing a liquid developer dispersing toner particles containing a magnetic component, into contact with the electrode and a recording material. CONSTITUTION:Space between groove 9 and 10 for introducing a liquid developer is divided with a partition wall 13 formed together with a recess material in one body, a large number of recording electrodes 3 made of thin and long ferromagnetic materials penetrate the wall 13 vertically, corresponding to an individual image element. A magnet 16 is adjacent to the lower parts of the electrodes. Recording voltage is applied to an opposite electrode 4 and the electrodes 3 in accordance with image signals from a recording power supply 6. A concentration of toner particles 15 in the liquid developer increases extremely along magnetic force lines extending from the electrodes 3 to the electrode 4, and an amount of particles attaching to a recording material 5 per unit time increases, permitting a sufficient recording density to be obtained even when recording speed is raised.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a recording medium between a recording electrode and a counter electrode, and also distributes Tochiiqsaiko in an electrically insulating solvent. By bringing the developing solution made by the developer into contact with at least the front electrode 16*electrode J... and the recording medium, and applying a recording voltage between the recording electrodes and the opposed electrodes in this state, the coulomb This is related to a recording device 1 that performs recording by causing the above-mentioned Qi particles to land on the IJ recording medium by force.

FIG. 1 shows a conventional device for this purpose, in which a developer container 2 containing toner particles dispersed in a solvent of an insulator 1'1 is housed in a developer container 1 at 71. Recording electrodes 3: l', - and opposing 'Ftf, poles 4 are immersed in the developer 2, and these electrodes 3, 44j: 3/, 7 are opposed to each other.

The recording medium 5 is conveyed in the direction of arrow A between the recording electrode 3 and the counter electrode 4 with both surfaces immersed in the developer 2.

In this state, the recording power source 6 is connected to the recording electrode 3.
When a recording voltage is applied between the recording electrode 3 and the counter electrode 4, the toner particles land on the narrow part of the recording medium 5 between the recording electrode 3 and the counter electrode 4 due to electrophoresis. and recording is performed.

However, in such an apparatus, since the toner particles in the developer 2 are moved toward the recording medium 5 using only the electrophoretic phenomenon, the amount of toner particles that land on the recording medium 5 per unit time is limited. It is possible to make a sufficient amount of power. Therefore, if the recording speed is increased, sufficient recording density cannot be obtained, so there is a drawback that high-speed recording cannot be performed.

However, it also had the disadvantage of poor resolution because it was not possible to obtain recording dots that clearly corresponded to the recording electrodes.

The present invention has been made to solve the above-mentioned conventional drawbacks, and is designed to provide a recording device that can perform high-speed recording and has excellent resolution.

The present invention will be described below based on embodiments shown in the drawings.

In FIGS. 2 and 3, the four parts It7 extending in the main scanning direction and the horizontal direction are provided with four parts 8 with their openings facing toward one side. The four parts 8 include developer introduction grooves 9 and 10, developer recovery grooves 11 and 12, and the like. The developer introduction i'1171'9 and 10 are separated by a partition wall 13 formed integrally with the recessed part 4'7, and the upper end of the partition wall 13 between It is slightly lower than the upper end of the outer peripheral wall 14 of the moon 7. A large number of recording molds 1@3 made of elongated ferromagnetic material are vertically penetrated through the partition wall 13. These recording electrodes 3 correspond to each pixel, and one end of each recording electrode 3 is arranged in a line with straight lines -1- extending at the main scanning direction Fi] at the same pitch. has been done. ''-/The upper end of each recording electrode 3 is at the same height as the uphill portion 111 of the partition wall 13. Note that each recording type) i[j 3
iJ are electrically isolated from each other 5), -1. The developer introduction grooves 9, 10 and the developer recovery groove 11.12 are separated by partition walls 23.24 integrally formed on the four-part member 7. '' One end is approximately at the same height as the upper end of the partition wall 13.

A magnet 16 is adjacent to the lower end of each recording electrode 3 . The bottoms of the developer introduction grooves 9 and 1o are connected to a developer tank 18 via a suction pipe 1a. The developer tank 18 is filled with a developer 2 which is made by dispersing toner particles in an electrically insulating solvent such as petroleum-based or Freon-based solvent. The toner particles have a pigment such as carbon blank, a ferromagnetic material such as magnetite, a resin, and the like as constituent components.

A discharge pipe 2 is connected to the bottom of the developer recovery grooves 11 and 12 to the suction port of a circulation pump 19 that sucks and discharges gas and liquid.
The discharge port of this pump 19 is connected to the developer tank 18 via a discharge pipe 21.

7 Above the recessed member 7, there is a 6.
\-7 A counter electrode 4 is installed at the gate 1, and a recording voltage corresponding to both signals is applied between the counter electrode 4 and the recording electrode 3 from a recording power supply 6.

5B is a recording medium such as electrostatic recording paper or plain paper, and a recording paper supply means (not shown) moves between the recording electrode 3 and the counter electrode 4 in the sub-scanning direction, that is, in the direction perpendicular to the four-part member 7 (arrow is transported in the incoming direction).

During this conveyance, the recording medium 5 is transferred to the outer circumferential wall 1 of the four-part member 7.
(In order to make it easier to understand the operation of this embodiment, in Fig. 3,
The gap between the recording body 5 and the upper end of the outer circumferential wall 14 is somewhat exaggerated in the drawing. ) Next, the operation of this embodiment will be explained. When the pump 19 is operated in a state where the recording medium 5 has been conveyed between the recording electrode 3 and the counter electrode 4, the pressure in the recess 8 is reduced. As a result, the developer 2 in the developer tank 18 is sucked up. The developer is sucked up via the tube 17 and introduced into the fourth part 8 from the bottom of the developer introduction groove 9.10. Therefore, the developer 2 comes into contact with one end of the three recording electrodes and the lower surface of the recording medium 6. Since the toner squid in the current r□□□ liquid 2 contains a magnetic substance component, the presence of the magnet 116 causes a magnetic force to be applied to the recording electrode 3 (1, -).
I am attracted to it. Therefore, the line of magnetic force emanating from the magnet 16, passing through the recording 'i'1L443, and further extending in the same recording mold (from one end of the recording plate 3 to the opposite electric plate 4) is connected to the magnetic force line at the edge of the magnetic field. The concentration of toner particles becomes locally very high. Reference numeral 15 indicates a toner core at a portion where the recording electrode 31- has a high concentration.

In such a state, when a recording voltage is applied from the recording 11L source 6 between the recording electrode 3 and the counter electrode 4 according to the image convex → JK, the recording electrode 3 is applied to the recording chamber) liis+ particles 15. Charges of the same polarity as (positive charges in Figure 3) are connected to band 7 [L]. On the other hand, a charge having a polarity opposite to the above-mentioned charge is injected into the recording body 5 from the back electrode 4 (a negative charge in FIG. 3) 1, [7], and toner particles 15 of the three recording electrodes. for,
The following two forces will come into play. That is, one is the Coulomb force FQ that acts between the two types of charges, and this FQ forces the particles 15 toward the recording medium 5 as F). , the other one is based on the magnet 16 < (jl
Energy FM-η′ leakage, this FMη; 1, toner particles 15
Let there be one f'+,'t,-1 on the recording electrode 3Ill11.

Therefore, the size of the previous t'L 14% recording month is set to 6-1 minutes, and the two particles 16 of 1 moxibustion 31 are recorded in the recording body 5. Attracted to -(1-
ij); 71, 1.-1r11 of the same record 5.
It will be done. As a result, 1/cHL recording is performed depending on the image quality.

Here, the recording device (7 (:l:;) is submerged in the magnetic field lines extending from the recording electrode 3 toward the lunar surface electrode 4 as described above) to remove the toner particles in the developer 2. The density becomes very high, and the density is very high.]/Toner particles in this part 1
5 is transferred to the recording body 5 by applying the bar on the recording,
When recording? 1'i-position]], pro1. il , >jdo1
Since -111 of the toner particles covering the side of the recording medium 5 increases, a sufficient recording density can be obtained even at a high recording speed of 17.

J... Are you a developer addict? 1llll] 9, 10 into the recesses 8-, -, tq.
; υ wall 23.24 above 9 ・ force passes through, and developer recovery product 11.12. Emission property/
20, Pump 19”. - The liquid is returned to the developer tank 18 via the drain pipe 21.

Ox/ko, 1 in the part that is in the fourth part 8 of the recording body 5
, clogged with developer 27. . However, when the pump is in operation, external air flows through the small gap between the -1 end of the outer circumferential wall 14 of the four parts (7) and the recording medium as shown by arrow B, and passes through the developer collection groove 11. 12, an air curtain is formed between the lower end of the outer peripheral wall 14 and the recording medium 5, consisting of an air flow from the first part toward the fourth part 8. Therefore, as the recording body 5 is conveyed in the direction of the arrow A, the developing solution 2 of the recording body 5 is
The part that was filled with is 1. on the outer periphery. If you make the child end of the part of the recording body 5 on the forward force side of the recording body 5 out of ¥14, the recording body 5 will have 11
Since the developer 2 that has arrived at the first position 7 is subjected to a force directed into the fourth part 8 by the air curtain, it follows the recording medium 5 and comes out of the recessed part 8. It is separated and remains in the four parts 8.

Sengata, ``By applying the recording voltage of 1f, the recording medium 5 (=
10 After the arrival of the L.
1-11 Recording body 5 has passed through the fourth part (7/ζ still arrives at the same recording body 6, and is still in the fourth part)' 7, l Toner particles were applied only to the areas where the recording medium 5 had been subjected to the printing process.・It has been removed and dried! It is in a state of 1.

In addition, rail record M] Concave as in 1 example) '11f
? 'r [I 'I4' 7, circulation pump 19, developer tank 18 r-, Il two! J1. Image liquid contacting means; The only thing to do is to read the book of the snow that is 1゛.
'＜ : I', +・; It is shown that the developer 1 and the tentacle which mix the carrier developer in contact with each other are constructed as shown in the example shown in the example. 11 things, 3 things
In addition, the counter electrode may also be formed in such a way that the developing solution comes into contact with it.

1. In the present invention, I... Then kl'
, in which position \yo, i3, -ma/4 one opposite, 'I11.
119 (+7) i1'l: :i'+"Ul, record body 5
It doesn't matter where it is, as long as it is in a position where charges 11...-7 can be injected into it.

Note that as the recording medium, not only papers such as the above-mentioned plain paper and electrostatic recording paper, but also recording bodies formed by forming a dielectric layer on a conductor can be used.

Furthermore, by connecting the Kojiroki system in a cascade,
The present invention can also be applied to a recording device that performs multicolor recording or transfer recording.

As is clear from the above description, the recording device according to the present invention includes a recording electrode made of a magnetic material, a magnet provided near the recording electrode, and toner particles containing a magnetic material component in an electrically insulating solvent. By bringing the dispersed developer into contact with the recording electrode and the recording medium, (a) The concentration of toner particles in the developer can be locally extremely high around the recording electrode. , sufficient recording density can be obtained even during high-speed recording.

(b) The part where the concentration of toner particles is high in the developer is formed along the lines of magnetic force passing through the recording electrode, so it has an oval shape, so that the recording area clearly corresponds to the recording electrode. The resolution of dot recorded images is improved.

It is possible to obtain excellent effects such as.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view of a conventional recording apparatus, FIG. 2 is a schematic perspective view of an embodiment of the recording apparatus according to the present invention, and FIG. 3 is a schematic cross-sectional view of the main parts thereof. 2...Developer, 3...Recording electrode, 4...
... Counter electrode, 5 ... Recording body, 6 ...
・Recording power source, 7...Recess member, 8...Recess, 15...Toner particles, 16...Magnet, 18...Developer tank , 19...Circulation pump. Name of representative Patent attorney Toshi Nakao Haga 1st person
Figure 2

Claims (2)

[Claims] (1) Magnet 1 (a recording electrode consisting of 11 elements, a counter electrode opposite to the recording electrode, a magnet provided near the recording electrode, and a recording electrode between the recording electrode and the counter electrode) A recording body supplying means for supplying a recording body, and a developer formed by dispersing torch grains containing a magnetic substance component in an electrically insulating solvent, are applied to the recording electrode, this recording electrode, and 1) the counter electrode mentioned in 11 above. A recording apparatus comprising: a developer contacting means for contacting the recording medium supplied therebetween; and a recording voltage applying means for applying a recording voltage between the recording electrode and the counter electrode. (2) The developer contacting means includes a developer tank for storing a developer connected to a recess provided in a recess member of the four parts, and a suction port connected to the four parts, and a developer tank connected to a recess provided in a recess member of the developer It has a pump for sucking and discharging gas and liquid, the discharge port of which is connected to the liquid tank. A tongue 1 installed outside the recess, a recording body (J (feeding means -
71. characterized in that two recording bodies are supplied between the two electrodes while being in contact with the -1 end of the four-part member;
! 1''Recording device 'j''' according to claim 1,