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11. 发明专利

CA1325241C ELECTROSTATIC RECORDING APPARATUS, METHOD OF CONTROLLING THEAPPARATUS, AND METHOD OF EVALUATING LIFE OF PHOTOCONDUCTIVE MEMBER OF ELECTROSTATIC RECORDING APPARATUS 未知
公开(公告)号：CA1325241C
公开(公告)日：1993-12-14
申请号：CA594356
申请日：1989-03-21
申请人： HITACHI LTD , HITACHI KOKI KK
发明人： UMEDA TAKAO , MIYASAKA TORU , NAMIKAWA OSAMU , KOMATSU ISAMU
IPC分类号： G03G15/00 , G03G15/02 , G03G21/00
摘要： A potential of a reference potential measure section is set to a desired value of a potential of a drum surface (charge receptive surface) such that a potential of the reference potential measure section and a potential of the charge receptive surface are detected by a surface potential detect device during a rotation of the drum to obtain a difference between the values of the measured potential, so that an operation of a charger is controlled to be reduced to zero, thereby changing the potential of the charge receptive surface. This enables the surface potential to be precisely controlled without necessitating a frequent calibration of the surface potential detect device. In addition, the potential of the reference potential measure section is appropriately set depending on a develop condition so as to prevent a toner, when the portion passes a developer at a position over a circumferential area of the drum, from being fixed thereonto. Moreover, a potential of the reference potential detect section and a potential of the charge receptive surface are detected by use of the surface potential detect device so as to examine a difference therebetween and a distribution thereof, which enables a change as well as an irregular variation of the potential due to deterioration of the charge receptive surface to be analyzed. based on the analysis, it is possible to detect the deterioration of the photoconductive body as the charge receptive surface so as to evaluate the life thereof. Furthermore, when an information processing system is configured by combining a computer with an electrostatic recording apparatus according to the present invention, there can be provided a picture quality control system effecting a precise control depending on a characteristic of the photoconductive body.

12. 发明专利

DE3272689D1 ELECTROPHOTOGRAPHIC RECORDING METHOD 未知
公开(公告)号：DE3272689D1
公开(公告)日：1986-09-25
申请号：DE3272689
申请日：1982-05-13
申请人： HITACHI LTD
发明人： KOMATSU ISAMU , ANZAI MASAYASU , HOSHI NOBUYOSHI
IPC分类号： G03G15/01 , G03G13/01 , G03G15/08
摘要： In an electrophotographic recording method in which electric charge is uniformly applied to the surface of a photoconductive drum (1), the drum surface is then exposed to a first information light beam (3A) to form a first negative latent image, the first negative latent image is developed with a first two-component developer (4B), the drum surface is further exposed to a second information light beam (5A) to form a second negative latent image, and the second negative latent image is developed with a second two-component developer (6B) to produce a two-color toner image, the toner content (a 2 ) in the second two-component developer is made larger than that (a,) in the first two-component developer.

13. 发明专利

DE3330273A1 未知
公开(公告)号：DE3330273A1
公开(公告)日：1984-02-23
申请号：DE3330273
申请日：1983-08-22
申请人： HITACHI LTD , HITACHI KOKI KK
发明人： KOMATSU ISAMU , ANZAI MASAYASU , HOSHI NOBUYOSHI , AKIMARU SUSUMU
IPC分类号： G03G15/01 , G03G15/08

14. 发明专利

DE2738186A1 未知
公开(公告)号：DE2738186A1
公开(公告)日：1978-03-09
申请号：DE2738186
申请日：1977-08-24
申请人： HITACHI LTD
发明人： KOMATSU ISAMU , SUGAWARA TORU , YAMAUCHI TSUKASA
IPC分类号： H02M1/08 , H03K17/13 , H03K17/79 , H03K17/72 , H03K17/78

15. 发明专利

JPH0125059B2 失效
公开(公告)号：JPH0125059B2
公开(公告)日：1989-05-16
申请号：JP13769080
申请日：1980-10-03
申请人： HITACHI LTD
发明人： ANZAI MASAYASU , HOSHI NOBUYOSHI , KOMATSU ISAMU
IPC分类号： G03G13/01 , G03G15/01

16. 发明专利

JPS58189656A Two-color developing method 失效
标题翻译：双色发展方法
公开(公告)号：JPS58189656A
公开(公告)日：1983-11-05
申请号：JP7115882
申请日：1982-04-30
申请人： Hitachi Ltd
发明人： HOSHI NOBUYOSHI , ANZAI MASAYASU , KOMATSU ISAMU , AKIMARU SUSUMU
IPC分类号： G03G13/01 , G03G15/01
CPC分类号： G03G15/0126
摘要： PURPOSE:To obtain a clear two-color picture free of color mixing, by scattering a toner when a developer leaves a rubbing plate provided in contact with the surface of the developer, and removing the 1st toner mixed with the 2nd toner from the developer. CONSTITUTION:The 1st toner 5 is carried on the surface of a sleeve 11 together with the 2nd toner 8 and the developer 9 consisting of a carrier. The carried amount of the developer 9 is specified by a doctor 12 to secific thickness to develope an electrostatic latent image on the surface of a recording body 1 and after the development, the developer is scraped off from the sleeve 11 by a scraper 13. The rubbing plate 14 is provided in contact with the surface of the developer 9 in front of the scraper 9. The developer 9 flows down in contact with the rubbing plate 14 and the toner 5 also scatters in powder together with the toner 8 when leaving the end part 15 of the plate 14. A separating electrode 16 which rotates by being applied with a positive voltage is provided on the opposite position to the scraper 13 and only the toner 5 having negative charge among the scattering toner sticks to the separating electrode 16.
摘要翻译：目的：为了获得无色混合的清晰的双色图像，当显影剂离开与显影剂表面接触的摩擦板时散开调色剂，并从显影剂中除去与第二调色剂混合的第一调色剂。构成：第一调色剂5与第二调色剂8和由载体组成的显影剂9一起承载在套筒11的表面上。显影剂9的承载量由医生12指定，以便在记录体1的表面上形成静电潜像，并且在显影之后，通过刮刀13将显影剂从套筒11刮掉。摩擦板14设置成与刮板9前面的显影剂9的表面接触。显影剂9向下流动，与摩擦板14接触，并且调色剂5在离开末端时与调色剂8一起散射在粉末中通过施加正电压而旋转的分离电极16设置在与刮刀13相对的位置上，并且只有散射调色剂中具有负电荷的调色剂5粘附到分离电极16。

17. 发明专利

JPS57118268A Developing device by magnetic brush 失效
标题翻译：通过磁力刷开发设备
公开(公告)号：JPS57118268A
公开(公告)日：1982-07-23
申请号：JP319681
申请日：1981-01-14
申请人： Hitachi Koki Co Ltd , Hitachi Ltd
发明人： KOMATSU ISAMU , ANZAI MASAYASU
IPC分类号： G03G15/09
CPC分类号： G03G15/09
摘要： PURPOSE:To form a uniform and stable magnetic brush by specifying the shape and installation position of a developer regulating member. CONSTITUTION:A developing vessel 1 is provided therein with a developing magnet roll having a sleeve which has a stationary magnet 4 in the inside and conveys a developer by rotating around the same. A shaping member 7 which controls the thickness and shape of the developer is provided opposite to the developing magnet roll. The shaping member is provided between the dissimilar magnetic poles 4a and 4b of the magnet 4 in such a way that the angle theta from the pole 4a attains 50-65% the angle between the poles 4a and 4b and it is formed to the shape wherein the distance between the shaping member and the sleeve decreases gradually in the conveying direction (1.2-2.0 normal distance ratios) so that the bulk density of the developer increases gradually. The angle that the normal in the position on the circumferential surface of the sleeve placed opposite to the shaping member and the plane of the shaping member where the developer contacts assumes is set at 3-15 deg..
摘要翻译：目的：通过指定显影剂调节构件的形状和安装位置，形成均匀稳定的磁刷。构成：显影容器1在其中设置有具有套筒的显影磁性辊，该套筒在内部具有固定磁体4，并通过围绕其旋转来传送显影剂。控制显影剂的厚度和形状的成形构件7设置在显影磁性辊的对面。成形构件设置在磁体4的不同磁极4a和4b之间，使得来自极4a的角度θ达到极4a和4b之间的角度的50-65％，并且形成为其中成形构件和套筒之间的距离在输送方向（1.2-2.0正常距离比）上逐渐减小，使得显影剂的堆积密度逐渐增加。套筒圆周表面上位于与成形构件相对的位置处的法线和显影剂接触所形成的成形构件的平面的角度设定为3-15度。

18. 发明专利

JPS5723952A Bicolor electrophotographic method 失效
标题翻译：双色电子显示方法
公开(公告)号：JPS5723952A
公开(公告)日：1982-02-08
申请号：JP9751580
申请日：1980-07-18
申请人： Hitachi Ltd
发明人： KOMATSU ISAMU , HOSHI NOBUYOSHI , ANZAI MASAYASU
IPC分类号： G03G13/01 , G03G15/01
CPC分类号： G03G15/0157 , G03G15/0163
摘要： PURPOSE:To achieve clear bicolor printing by preventing the 2nd toner from sticking on the 1st toner picture, by providing a means of discharging a photoconductor and the secondary electrifying means between the 1st developing means and 2nd exposing means. CONSTITUTION:An exposing means 12 and the 2nd charger 13 are provided behind the 1st developing device 4, and a photoconductive drum 1 on which the 1st toner picture is formed is first exposed by the exposing means 12 to lower its surface potential V1 nearly to zero. Then, the photoconductive drum 1 is electrified again positively and uniformly by the 2nd charger 13. To pring the photoconductive drum 1 in the 2nd color, the drum is exposed to the 2nd rays 6 of light carrying the 2nd information. Further, reversal development is carried out by using the 2nd toner 8 having the positive polarity and differing in color from the 1st toner 5, thus achieving clear bicolor printing.
摘要翻译：目的：通过在第一显影装置和第二曝光装置之间提供放电感光体和二次充电装置的方法，通过防止第二调色剂粘附在第一调色剂图像上来实现清晰的双色打印。构成：曝光装置12和第二充电器13设置在第一显影装置4的后面，并且其上形成有第一调色剂图像的感光鼓1首先被曝光装置12暴露以将其表面电位V1几乎降至零。然后，感光鼓1通过第二充电器13再次被正电和均匀地通电。为了以第二种颜色来驱动感光鼓1，该鼓暴露于携带第二信息的第二光线6。此外，通过使用具有正极性和与第一调色剂5不同的颜色的第二调色剂8进行反转显影，从而实现清晰的双色印刷。

19. 发明专利

JPS54116269A LEVEL DETECTOR FOR POWDER AND GRANULAR MATERIALS 失效
公开(公告)号：JPS54116269A
公开(公告)日：1979-09-10
申请号：JP2204878
申请日：1978-03-01
申请人： HITACHI LTD , HITACHI KOKI KK
发明人： KOMATSU ISAMU , ANZAI MASAYASU
IPC分类号： G01F23/22
摘要： PURPOSE:To achieve the prevention of deposition of powder and granular materials on a level detecting vibrator and enable the detector to operate surely even for powder and granular materials of high cohesive and adhesive forces by forcefully vibrating the vibrator such as tuning fork, tuning bar of the like with natural frequency. CONSTITUTION:When the output voltage of an oscillating circuit 4 generating voltage at the frequency nearly equal to the natural frequency of a tuning bar 1 is applied to an electrostrictive vibrating element 3a, the tuning bar 1 is forcefully vibrated by the natural frequency and this causes the electrostrictive vibrating element 3b to generate an electric signal. After this signal is amplified with an amplifier 5, it is converted to an arbitrary signal in a signal processing circuit 6. Now, when powder or granular material touches the tuning bar 1 and restrains the same, the vibrations of the tuning bar 1 attenuate or stop, but when there is no more powder or granular material, the tuning bar 1 again begins to make separate excitation vibration. This enables the level of the one restraining the vibration of the tuning bar 1 to be detected by the output voltage of the amplifier 5 and the powder or granular material depositing on the tuning bar 1 to be readily shaken off by the forceful separate excitation vibration of the tuning bar 1, thus making possible the sure level detection.

20. 发明专利

JPS5360183A BIDIRECTIONAL PHOTO THYRISTOR AND ITS USE CIRCUIT 失效
公开(公告)号：JPS5360183A
公开(公告)日：1978-05-30
申请号：JP13564876
申请日：1976-11-11
申请人： HITACHI LTD
发明人： KONISHI TOBUTAKE , YOKOTA TAKESHI , YAO TSUTOMU , KOMATSU ISAMU
IPC分类号： H01L29/74 , H01L29/747 , H01L31/10 , H01L31/111 , H02M1/08 , H03K17/13 , H03K17/72
摘要： PURPOSE:To make possible the adjustment of photo ignition sensitivity and electrical characteristics by exposing two P type base regions respectively corresponding to the two thyristors displaced in reverse parallel on the main surface of the light receiving side and providing two external terminals here.

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