-
公开(公告)号：JPH04138261A
公开(公告)日：1992-05-12
申请号：JP26075190
申请日：1990-09-29
Applicant: CASIO COMPUTER CO LTD
Inventor： TAKEUCHI EIICHI , SHIMIZU SHIGERU , YAMAMOTO TADAO , INOUE HIDEAKI , SATO YASUTO , NAKAYAMA KENJI , TAKAHASHI HIDEKI , ASAKO KENICHIRO , HONDA TOSHIRO
Abstract: PURPOSE:To form an excellent image in high resolution by focusing magnetic force lines of a recording position on a recording electrode by a method wherein a surface of a part extending at a recording position upmost near to, at least, an opposed electrode of the recording electrode is formed by a magnetic material. CONSTITUTION:A recording electrode EL is constructed by two layers of coating a magnetic layer 17d consisting of a magnetic conductive material on a surface of a recording electrode wire 17a consisting of a non magnetic conductive material. The recording electrode EL is parallel constructed in an area Z on an upstream side from a recording position W, and a drive circuit element 18 selectively applies recording voltage according to a recording data. In this case, when the recording data of one bit is, for instance, 'H', it is transferred to a surface of a cylindrical electrode 5 to form a black dot. That is, almost of magnetic force lines (indicated by the broken line) of a progressive wave magnetic field on a surface of a developing sleeve 15 are so controlled as to be focused on the recording electrode EL and be extended toward a cylindrical electrode 5 side, and a magnetic toner (d) forms a crest along said focused magnetic force wires. Therefore, on dot is accurately formed by a clear contour.
-
公开(公告)号：JPH04133071A
公开(公告)日：1992-05-07
申请号：JP25457490
申请日：1990-09-25
Applicant: CASIO COMPUTER CO LTD
Inventor： TAKEUCHI EIICHI , SHIMIZU SHIGERU , YAMAMOTO TADAO , INOUE HIDEAKI , SATO YASUTO , NAKAYAMA KENJI , TAKAHASHI HIDEKI , ASAKO KENICHIRO , HONDA TOSHIRO
Abstract: PURPOSE:To prevent wear of recorder head and to stabilize a recorded image of high resolution over a long period of time by bringing a recording head of the electrostatic recorder and a recording medium into noncontact with each other. CONSTITUTION:A recording electrode sheet 17 is provided so as to cover a surface of a nonmagnetic cylindrical body with a magnetic roll 16 inside. Next, horizontal circulatory paths 13a, and 13b for developer are formed on a bottom part of a developer recording tank 12. Then, auger rolls 14a and 14b with spiral blades 14a3 and 14b2 erected in the horizontal circulatory path are provided. Following that, the magnetic toner (d) agitated and made to flow by the auger rolls 14a and 14b are selectively transferred to the peripheral face of the cylindrical electrode 5 according to the recorded information and the toner recorded image is formed. Thus, the good picture of a non-contact recording method can be stably formed over a long period of time.
-
公开(公告)号：JPH0451163A
公开(公告)日：1992-02-19
申请号：JP16091890
申请日：1990-06-19
Applicant: CASIO COMPUTER CO LTD
Inventor： TAKAHASHI HIDEKI , TAKEUCHI EIICHI , SHIMIZU SHIGERU , YAMAMOTO TADAO , INOUE HIDEAKI , SATO YASUTO , NAKAYAMA KENJI , HONDA TOSHIRO , ASAKO KENICHIRO
Abstract: PURPOSE:To stably form a recorded image with high resolution on a plain paper by opposing recording electrodes juxtaposed on a developer carrying member to a cylindrical electrode which is combined with an intermediate recording medium with a very small gap and setting a cleaning electrode on which the voltage of a reverse polarity to the electrostatically charge polarity of the developer is impressed on the surface part of the developer carrying member on an upstream side. CONSTITUTION:The leading edge part 20al of a recording electrode line 20a positioned in a recording part W is made to rise a little and exposed to the surface of an insulat ing coat 20c, then a recording action is performed. The cleaning electrode 20d made of a non-magnetic conductive material is disposed at a position set at specified length apart from the leading edge exposed part 20al of the recording electrode line to the upstream side, and a cleaning power source 20e capable of outputting the DC voltage of a reverse polarity to the electrostatically charged polarity of developer is interposed between the electrode 20d and a cylindrical electrode 5, and toner d0'' which is not transferred and left on the circumferential surface of the electrode 5 is transferred to the electrode 20d side so as to clean the circumferential surface of the electrode 5. Thus, the plain paper is used and the excellent recorded image with the high resolution is stably formed without causing an after-image.
-
公开(公告)号：JPH0413168A
公开(公告)日：1992-01-17
申请号：JP11707990
申请日：1990-05-07
Applicant: CASIO COMPUTER CO LTD
Inventor： TAKEUCHI EIICHI , SHIMIZU SHIGERU , YAMAMOTO TADAO , INOUE HIDEAKI , SATO YASUTO , NAKAYAMA KENJI , TAKAHASHI HIDEKI , HONDA TOSHIRO , ASAKO KENICHIRO
Abstract: PURPOSE:To improve durability and the quality of a noise surface and to miniaturize an applicable equipment by burying conductors into plural recessed parts, forming a magnetizing coil part, and energizing a pulse width modulating current whose phase is deviated by a proper quantity to the magnetizing coil part. CONSTITUTION:Plural conductors 4a are laid in respective recessed parts 3a in parallel, to form plural coil parts 4, and they are separated to the groups of m-pieces. The coil parts 4 of each group are disposed at every other (m-1) piece, the pulse width modulating current so as to sequentially reverse the direction of a magnetic pole is energized, and the pulse width modulating current whose phase is deviated is sequentially energized to m-coil parts which belong to different groups and arranged in an adjacent relation pi/m by pi/m, in an arranged order. The traveling-wave magnetic field advancing along the outer periphery of a sleeve 2 is formed, and a magnetic powder body (dt) is carried. Thus, a mechanically rotary mechanism is eliminated, and the improvement of the durability and the quality of the noise surface, and the miniaturization of the applicable equipment are attained.
-
公开(公告)号：JPH045666A
公开(公告)日：1992-01-09
申请号：JP10728890
申请日：1990-04-23
Applicant: CASIO COMPUTER CO LTD
Inventor： YAMAMOTO TADAO
Abstract: PURPOSE:To sufficiently carry out the flying of toner and to produce a sharp recorded image by setting the volume resistivity R of a developer carrier at 10 OMEGAcm. CONSTITUTION:When a control signal output part 24 outputs a pulse signal, the voltage of a potential difference V1 + V2 is applied between an intermediate transfer medium 6 and a wire electrode 22, and the toner T flies to the medium 6 along a formed electric field. At this time, a charge having the reversed polarity equivalent to the total charge quantity of the flied toner T is left on a magnetic grain left on a film 21. When voltages V1 and V2 are set so that, for instance, the electric field of 10 V/cm is formed between the medium 6 and the electrode 22 via the film 21, the volume resistivity of the film 21 is almost 10 OMEGA.cm. Therefore, when the volume resistivity of the film 21 is low such as 10 .cm, a residual charge flows into a ground via the electrode 22 a power source 23, and is not stagnated. Thus, the toner enough to form one dot flies to the medium 6.
-
Patent Agency Ranking
公开(公告)号：JPH021870A
公开(公告)日：1990-01-08
申请号：JP14311688
申请日：1988-06-10
Applicant: CASIO COMPUTER CO LTD , CASIO ELECTRONICS MFG CO
Inventor： YAMAMOTO TADAO , ABE TETSUYA , DOI MASAAKI , HISATOMI SHINICHI , OISHI MITSUGI , HONDA TOSHIRO
Abstract: PURPOSE:To reduce adhesiveness between a toner and the surface of a photosensitive body and to enhance a transfer efficiency of the toner to a transfer paper almost up to 100% and to enable a cleaner to be dispensed with by externally adding hydrophobic silica particles to the toner in a specified proportion. CONSTITUTION:The adhesive force between the toner layer and the surface of the photosensitive body is usually composed of Van der Waals force and an image force, and since the former amounts to about 80%, it is necessary to reduce this force in order to facilitate peeling. When a binary developer composed of a ferrite carrier and an N type toner, for example, in a weight ratio of 9:1, is used, further the fine hydrophobic silica particles is added in an amount of 0.125-0.25wt.% of the toner, thus permitting the transfer efficiency of the toner to be enhanced and the image remaining phenomenon to be restrained and superior images to be formed for a long period.
-
公开(公告)号：JPH01216368A
公开(公告)日：1989-08-30
申请号：JP4135088
申请日：1988-02-24
Applicant: CASIO ELECTRONICS MFG CO , CASIO COMPUTER CO LTD
Inventor： ABE TETSUYA , HISATOMI SHINICHI , YAMAMOTO TADAO , DOI MASAAKI , OISHI MITSUGI , HONDA TOSHIRO
Abstract: PURPOSE:To prevent image quality from lowering when a cleaner is not used and the length of a photosensitive body is shorter than the size of a maximum transfer sheet by setting an irradiating light quantity and a uniform electrification potential so that the changing quantity of a latent image mean potential and the lowering rate of the irradiating light quantity satisfy a specific relation. CONSTITUTION:The irradiating light quantity I and the uniform electrification potential VS are set so that the changing quantity DELTAVM volt of the latent image mean potential, between the latent image mean potential at the time of forming a dot-like electrostatic latent image with the irradiating light quantity I and the uniform electrification potential VS on the surface of a photosensitive body where residual toner does not exist and the latent image mean potential at the time of forming the same latent image in lowering the irradiating light quantity I by x%, and the lowering rate of the irradiating light quantity I (x)% satisfy the relation DELTAVM/x
-
公开(公告)号：JP2006342017A
公开(公告)日：2006-12-21
申请号：JP2005169188
申请日：2005-06-09
Applicant: CASIO COMPUTER CO LTD
Inventor： YAMAMOTO TADAO
Abstract: PROBLEM TO BE SOLVED: To reduce heat loss regarding a reaction apparatus for a fuel cell device where reactors having different operating temperatures such as a vaporizer, a reformer and a CO remover are integrated. SOLUTION: The reaction apparatus 10 comprises a plurality of reactors 13, 14, 15 for reforming fuel. Then, in the plurality of reactors, a low temperature reaction part 12 of causing reaction at a prescribed temperature, a high temperature reaction part 11 of causing reaction at a temperature higher than that in the low temperature reaction part 12, and connection tubes 25 to 28 of connecting the low temperature reaction part 12 and the high temperature reaction part 11 are included. In at least either the low temperature reaction part 12 or the high temperature reaction part 11, the part connected with the connection tubes 25 to 28 is retreated to the face confronted with the other in the low temperature reaction part 12 and the high temperature reaction part 11. COPYRIGHT: (C)2007,JPO&INPIT
-
公开(公告)号：JPH11227219A
公开(公告)日：1999-08-24
申请号：JP3694998
申请日：1998-02-19
Applicant: CASIO COMPUTER CO LTD
Inventor： ODA MASAHIRO , TAKEYAMA HIROYUKI , NAKAMURA YOSHISUKE , OTA MASANORI , YAMAMOTO TADAO , TAKEUCHI EIICHI
IPC: B41J2/175
Abstract: PROBLEM TO BE SOLVED: To provide an ink jet printer having a plurality of ink ejection nozzles whereby clogging hardly occurs. SOLUTION: In a print head 2, a common 7a on a substrate 8-1, and a cutting electrode 7b and accelerating electrodes 7c on a substrate 8-2 are opposed to each other and an ink passage 9 of which inner wall is covered with water- repellent films 14-1, 14-2 is formed. Ink 11 in an ink tank 3 is introduced from an ink stand-by section 12 having a water-repellency to the cutting electrode 7b to be cut. The ink becomes an ink droplet to be accelerated to a direction X in the ink passage 9 having the water-repellency by virtue of a Maxwell's distortion by an electric field which is sequentially generated toward a side of an ejection nozzle 16 by the plurality of accelerating electrodes 7c. The ink droplet is ejected from the ejection nozzle 16 to a surface of a recording paper to form one dot thereon. In the case where plural sets of the common electrode 7a, cutting electrode 7b and accelerating electrode 7c are juxtaposed in the direction Y (paper width direction), it is possible to constitute a print head capable of printing a plurality of dots at the same time.
-
公开(公告)号：JPH11227175A
公开(公告)日：1999-08-24
申请号：JP3695098
申请日：1998-02-19
Applicant: CASIO COMPUTER CO LTD
Inventor： NAKAMURA YOSHISUKE , TAKEYAMA HIROYUKI , ODA MASAHIRO , OTA MASANORI , YAMAMOTO TADAO , TAKEUCHI EIICHI
Abstract: PROBLEM TO BE SOLVED: To provide an ink jet printer for facilitating a multivalue by a dot size modulation or a multivalue by a density modulation. SOLUTION: A print head 2 has four cutting electrodes 8a, 8d of different sizes arranged oppositely to a common electrode 7 in a water repelling region, droplet collecting electrode 9 adjacent to the electrodes 8a, 8d, and an accelerating electrode (11a and the like) adjacent to a droplet collecting spot J. The electrodes 8a, 8d or the like quarry ink droplets (e.g. 21a) of different sizes from a waiting part 13 of a hydrophilic region for supplying an ink. A thickness of an insulating layer 15 for isolating the electrodes 9 and 7 is thinner toward a discharge port direction (downward in the drawing) and thinner toward a droplet collecting spot J side direction. Thus, the quarried droplet is collected to the spot J. The electrode 11 (11a, or the like) adheres the droplet becoming one dot of various sizes from the same discharge port by the collected droplets (in combination) of the ink droplets quarried in various size.
-
-
-
-
-
-
-
-
-
Search Results
107
records
(took 0.026 seconds)
