JPS5931982A - Magnetic toner transferring device - Google Patents

Abstract

PURPOSE:To enhance the sticking force of a toner image to a recording medium and to improve transfer efficiency, by electrifying toner to the polarity opposite to a reversal bias potential used for a reversal development process and increasing the sticking effect between the toner image and recording medium. CONSTITUTION:While a magnet roll 3 is impressed with the reversal bias potential from a DC power source 10, the reversal development of an electrostatic latent image formed on the recording medium 1 is performed with a developing device 4 by using the magnetic toner 6 attracted to the magnet roll 3 and the developed toner image 7 almost reaches a charging means 11 as a drum rotates as shown by an arrow to be placed in an ion electric field established by the charging means 11; and then the toner image 7 loses fine positive charges that it obtains during the development and is given many negative charges to stick onto the recording medium 1 tightly.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an electric photographic record or (θ, static 'i4j, record a
Magnetic L/S transfer device 1. Regarding.

In general, electrophotographic recording and electrostatic recording each use a photoconductive element typified by selenium or zinc oxide, or a recording element using an inducer as a medium, and electrostatic latent recording is performed by known means. An image is formed, and a toner image is formed by developing the electrostatic latent image with a magnetic toner (1:1).
Below, transcription. ) After washing, it is clarified.

The most widely used practical example of this series of recording methods is the Koichi-shuttle camera, but this one? tj child copy tower 1 &:]:
4. Mirror image W1 for the original image to be copied. An electrostatic latent image is formed, and a toner image corresponding to the electrostatic latent image is properly developed and then transferred.

In addition, other practical examples include the output of image information, which is a field in which application development has recently made remarkable progress, and -
C1 Nozahim printer, LED printer (Fakunmiri tongue device 6).

Such a device rt-s + Nai '1' form lJ
Mata no 1 to 2, - Toki'1ij7;
Name', 5T, l, ``: Necessity of the external light system 4ij as a means of forming a static image, ``I'' from K- cases, n1IW self-static submergence. So-called reversal development is performed to develop a toner image that has a negative relationship with the image.
:I will. This J1d5, Kof-"1 Child Shizuka? (1, Poetry's Kasu'1F1 World 17) is to apply a sufficient inversion bias potential to the current protector to cancel the above (・C up 1
1 Now.

Traditionally, after leaving the lab, I said 1, and then turned it around. Unlike the I-component toner h!1, which is a developer other than L-toner, L-toner itself has no retained charge, so faithful reversal development (, (Jli; 1. Do (・(is the above-mentioned reversal bias T)'r, the city of the same polarity as the can, the load "?c I will become a positive toner?" Therefore, due to the frost with the recording medium, there is a need to strengthen the air-breathing power.

] - sword) while at the same time, 1 at the same time, the present r by Toner
There are many aspects of the image mechanism that have not yet been elucidated, such as the L-na-T effect in the U1 image.
Nagisa's well-known 11′!, (−Cλ・, , specifically U],
The ratio of the two-component toner is 1'j'j and -IJ after development.
, specific gravity, A::, L ``H-''. Guide box 7th grade Jl ke, otto shi, -) 1, it does not result in a sudden increase in box load 11: (or rather, transfer after development). 11-7 load up'M
, :Recording medium (4. The degree of leakage is further increased) ・d: Neku.

Historically, when performing field roller transfer of a toner image made of magnetic toner (ordinary colono transfer or 71), which also affects the transfer process, there is a phenomenon induced in the magnetic toner during development in the transfer means. Is there not much difference in the transfer cooling effect even if a 1 or u-reverse electric field is applied to the same polarity as the 4 charge, or is there a difference in the transfer cooling effect due to the 21 conjunction? There are also unnatural phenomena such as 't t ;l;1<.

Therefore, we investigated the percentage during development, load induction and transfer/7)
’7 (・load 1 “■゛holding” and y, H)
f, sex toner pigeon・''(' 11 in S etc.) 67i
Also 1 easy i 4゛, f・yoso I OFf/ m ~I
O75/ to i,! i7 ((Is Pentecost, -■- correct? The specific charge of inkstone 1' totowo- at this time =
&: l, 1/Ic/ri right 'Peng and persimmon with a little nib.

Koil,, (1:l, -4fi'i lhaL:i!l
:sha (<IIS', f i?) Y; ;i;・'Revised,
End of J↓゛□fi, part 1'・, helmet body! This occurs due to the i′4j nature. Immediately↓1, know this 15j゛form, pod small seregouno・no)Y, atsushijl・1,7. Hiro, when it comes to light,
Shishi Niuno, did you ask for the first wish - ranjit tights?
Effective movement ji of Or: t- is approximately 5 X I CJ-3c
rj/v second L・phantom, 11゛ hole movement bar・4],
Approximately]

Book-1 Paraphrase Jl Bako flldl, Magnetic 1-ner+(,
′iJ3: load or positive 71 induced in the toner at the inverted current value due to
1: In the load β′・7S・et al.? j-j, the load is”-
Selenium leaks to 11 pieces 1!3- or il,
In current use, it means that the electric current induced in the Ig+-ner during the New Year's holiday is extremely high compared to f't 71j g(',). It is.

Therefore, in reversal development and transfer using magnetic toner, Q
``1.Magnetic I・temporary'' - The drawback is that reversal development is performed using magnetic toner (, <).

Finally, transfer the final point of the toner image to the rolling paper in 4 fonts.'' In terms of efficiency, the transfer efficiency is only about 50% to 60%, and the toner consumption efficiency is also low. It is inevitable to select a transfer paper with a high resistance to force and resistance, and it is also necessary to select a transfer paper that has a high resistance to force and resistance.
Is it for 1 or the original toner protector? b. Stable transfer because it cannot depend on the electrical attraction force corresponding to the load-1
: It has the disadvantage of not being able to weigh 100.

The present invention solves the drawbacks of ``k-,''
1/-1, and its purpose is to increase the perceptibility of the toner image viewed on the recording medium and to
) The purpose is to improve the transcription efficiency of It':.

In order to achieve the above object, the present invention has the following features: 11. A reversal development process TVi! for the toner image before the transfer process. Special Jh11 is characterized by increasing the side light effect between the toner image and the recording medium by applying a charge of opposite polarity to the inversion bias potential used for the toner image. Rueton:ill
i'.

17'1 is the age, and 1 is 〃kuπf-Sereniuno,〈1
It is assumed that the surface of the medium has already been subjected to electrostatic aggregation by known means. , 2i+, lead? L month't''-・L', /9
,ru1rano,there,-eye;1:Does not support recording medium 1/
,). 36-1: ``it; 8' to the opening 15 of the kidney device 4
・Shipped magnet r” --/lz, 6 iJ,'
D'y branch f'iFI''-ner, 71J-lx;
':l-', note 41", θ1,; toner image selectively developed on holiday 11, 8υ, jΦl: photo paper λ・su, O
-/l・9 Takumi, l: Riff, mark direction (・te sent J.

1011, reverse bar to McNet roll 3 117713
Iseki, 9l counter current % source, 1 power 11' small 1 in\in Q; 1: above 11 words: I'f 4: 1? C
Shape IJ+! , the electric field of the static 741W'r' image,
T11. Let it be 1"l.

Is there a way to charge the electric charge of a discharger, etc.? An ion box 1''μ is completely formed in the tram 2''- between the location where the +jl'1t・ner 6 is transferred to the transfer paper 8 and the developing device 4.

12ij, the above 1-F load i'N]! '-i is a direct current applied to the means 11, and the applied level is equal to the direct current 1
0's willow condition and reverse rod property, that is, negative electrode, or 1), electrification J I 1-
The ion box and field emitted by the means 11 are adjusted to such an extent that the above record is 1 and the non-ambiguous T1 region of the body does not move inversely toward the negative electrode V1: side.

111: ir applied to the corona emitter 14
1' 41i city 7 source, and the application of 'ltI+ can be the above charge (1i+means ion it'4';,':
With the reverse polarity, that is, the positive electrode, the corona jN143.1ri
s 14 K Twisted transfer paper 8-1x Nidosu-(”!=
77 't: η・Enough to attract air? )・, the world should be frosted enough to form a).

Next, if we elaborate on the effect of f1°q formation mentioned above, we get
First, the magnet roll 3 has a reverse bias of 119, and the position is 1 yen - 1 style? ! , 7 sources and 10 forces were applied to the electrostatic latent image formed on the recording medium 1 in the state 91: 3J/, image type 4d: by the magnetic toner 6 formed on the Macnet roll 3. As the drum 2 moves in the direction of the arrow, the toner image 7 formed by the reversal development reaches the vicinity of the redundant charge applying means 11, and is charged with ion electricity emitted by the applying means 11. Exposure to μ and listening to Den 41.
Take it, this is it! ll The toner image 7 is retained at the time of development and is erased in the 11' direction (~, even more processing).
, 'Hanging, loading;
Medium 1'', narrows to 1.

I-, i! ! : L-7 た王f 11j-f, passed 1ner f noodles 71: 1-11・→Mu 2, according to the arrow direction, 1;
The toner image 7 is 11.
1'sui, I-, 81 to 111. To absorb the trend, it takes a minute to catch the box world - 11 static ■ 1. It is moved by the suction force and is rotated.

After completing the transfer, the transfer guide 8 is transferred to the next 14' by the roll 9.
, ``σヰ11 goes to ten stages of constant circulation.

Furthermore, 1. 11 for the toner image 7, and the inversion bar 1
Asden (1'r and the reverse cargo box cargo, cargo I, 1 means 1
1 by I'l'i L fr, Yu Mikawa & J1,
Recording gun body 1 is ";" //i+j In the example, P type "1' force body has rhenium 1 and 1F? ``M load'', also on the negative side, see j as E IJ) -1-word 1; band of toner image 7?
b. This is because the effect and charge retention rate are high.

10. As mentioned above, the magnetic properties of the present invention are as follows:
According to the nail device, an ion electric field is formed on the drum between the place where the magnetic toner is transferred to the transfer paper and the developing device by means for applying t+charge τj, and the ion electric field reaches the transfer gob. Reversed appearance for the image of L. Na] - Inverted bias used for the culm and reversed 4Vlj ■1, stone:
(By giving = 1, the toner particles are less likely to leak to the recording medium.) 1 liter from
In the route leading to the lJ, 'ij, and Tll culms, the toner image is disturbed]'1 and the magnetic l/ner's f1 by Yako 11 (the dispersion is reduced and the 'na both images 1■]-maintains the cow. There is an effect that can be done, and it is a phantom 1 in transcription-1f1'',
r-1suJ3 (r, for electric appliances): for transcription 7 [1,”) I
'- has the significant effect of acting on the T1 effect and transferring a toto image with high transfer efficiency and good stability.

Furthermore, the present invention actively applies the magnetic toner to L' which depends on the city and Kikuzuki for the development, transfer, and C-contact formation. Qualitative -l
, moreover, enabled effective spot effects and effective transfer operations. Therefore, high-speed development or CI of magnetic toner, high-speed transfer magnetic toner 7... Toner image 8... Transfer paper 11
.

%, Loading force means procedural amendment (voluntary) May 19, 1980 Kazuo Wakasugi, Director General of the Patent Office 1. Indication of the case 1981 Patent Application No. 141876 ';'';
2. Name of the invention Magnetic lm-transfer device 3, auxiliary 11 sol.
East 6 [Toramon IJ'', Miyakominato-ku, No. 7-12 Name f5 (
029) Oki Denki Gyokugyo Co., Ltd., 2nd right, 4th attorney, Minami 1, Masao 4, agent 7, supplementary IE, δ 1, the name of the invention is added as "Magnetic toner transfer force method".

2. The entire scope of the claims shall be supplemented as follows.

1. The electrostatic latent image formed on the recording medium is inverted using a 1'-component magnetic toner. In the magnetic toner transfer force method in which a negative toner image is formed with respect to the electrostatic latent image by imaging, and the toner image is transferred to a transfer body, C1 Magnetic Unit 1: Transfers the toner to a transfer carrier. An ion electric field is formed by means for applying a charge 4=J on the drum between the transfer point and the development area, and the ion electric field causes the transfer 'V-1-
By applying a charge of 1:1 with the opposite polarity to the reversal bias potential used in the reversal development step to the toner image before reaching the stage of reversal development, the electrical adsorption force between the recording medium and the toner image can be reduced to at least H during development. A magnetic toner transfer method characterized in that the magnetic toner is transferred onto a transfer carrier after increasing the adhesive strength. , 2 Claim 1, Paragraph 1 (15α) (wherein, the electric field strength of the ion electric field is set within a range that is comparable to that of the non-image area of the recording medium.) What we have set up to proceed is the direct toner transfer method. ``Method'' and sleeve +1E-J-ru.

4 In the 2nd line of the 400th μl on the 4th side, add ``not done'' to ``not done''.

5. Specifications", page 7, line 2 and line 3, insert "The drawing is a schematic side view showing an example of an apparatus for carrying out the magnetic l/ner transfer method according to the present invention."

6 In the specification - page 8, No. 1, . 1. Line 0r-J-For the work Jll of the composition described, Etsu 1IJ1 then ``[]-
The magnetic toner transfer 'IJh method using the above-mentioned apparatus will be explained as follows.''

7. [-Magnetic toner transfer recording device J'f: rMethod of transferring magnetic toner' on page 9, lines 17 to 18 in Ill.
Complement +fE.

8, Akira, 1l111! Insert the entire text below between page 10, line 17 and line 18.

[4. BRIEF DESCRIPTION OF THE DRAWINGS The drawing is a schematic side view showing an example of an apparatus for carrying out the magnetic toner transfer method according to the present invention. ”

Claims (1)

[Claims] 1. A negative toner image is formed with respect to the electrostatic latent image by reversing and developing the electrostatic latent image formed on the medium with a one-component magnetic toner. , in the magnetic toner transfer device 1j which transfers the toner image to the transfer carrier, there are 1, 1, 1 and 1, 1 and 1, 1 and 1, which transfer the magnetic toner to the transfer medium.
An ion electric current is generated on the drum between the container and the
By applying a charge of opposite polarity to the reversal bias potential used in the reversal development step to the toner image before the transfer step using the ionic charge μ.
fjr: A magnetic toner transfer device characterized by transferring the toner image to a transfer carrier after increasing the electrical handling force between the recording medium and the toner image at least higher than the developing force. 2. In claim 1, the electric field strength of the ion electric field is set to the toner image within a range that does not reversely charge the non-image area of the recording medium? Is the book and load set up for birds? A two-transfer device for Gokan I that takes /l=i; as a sign.