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71. 发明专利

JPS58189657A Color mixing detecting method on two-color development system 失效
标题翻译：双色发展系统的色彩混合检测方法
公开(公告)号：JPS58189657A
公开(公告)日：1983-11-05
申请号：JP7116082
申请日：1982-04-30
申请人： Hitachi Ltd
发明人： AKIMARU SUSUMU , KOMATSU ISAMU , HOSHI NOBUYOSHI , ANZAI MASAYASU
IPC分类号： G03G13/01 , G03G15/01
CPC分类号： G03G13/01
摘要： PURPOSE:To detect the degree of the mixing of a low-brightness toner with a high-brightness toner, by allowing a sensor part to which a filter of the same color system as a toner mark is added to measure the reflection density of the toner mark transferred to recording paper. CONSTITUTION:The recording paper 10 is conveyed as shown by an arrow. Toner marks 12 are printed in a red toner at specific intervals at parts other than print areas at the end part of the recording paper 10 and its reflection density is measured by an optical reflection density sensor 13 which measures light passed through the filter of the same color system as the red toner. As the number of printed pages increases, a black toner is mixed with the red toner and the black toner appears in the toner mark 12 of the red toner to increase the reflection density. Thus, the degree of mixing of the low-brightness toner with the high-brightness toner is detected.
摘要翻译：目的：为了检测低亮度调色剂与高亮度调色剂的混合程度，通过添加与作为调色剂标记的相同颜色系统的过滤器的传感器部件来测量调色剂的反射浓度标记转印到记录纸上。构成：记录纸10如箭头所示传送。墨粉标记12以特定间隔在记录纸10的端部的打印区域以外的部分印刷在红色调色剂中，并且其反射浓度通过光学反射浓度传感器13来测量，光学反射浓度传感器13测量通过其的过滤器的光彩色系统作为红色调色剂。随着打印页数的增加，黑色调色剂与红色调色剂混合，并且黑色调色剂出现在红色调色剂的调色剂标记12中以增加反射浓度。因此，检测低亮度调色剂与高亮度调色剂的混合度。

72. 发明专利

JPS57188061A ELECTROPHOTOGRAPHING DEVICE 失效
公开(公告)号：JPS57188061A
公开(公告)日：1982-11-18
申请号：JP7218181
申请日：1981-05-15
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： PURPOSE:To form a high-contrast multi-color image for a long period of time, by using the specific value for the toner mixing rate to the carrier of the 1st and 2nd double component developers which form a multi-color toner image. CONSTITUTION:The electrostatic latent images formed by the 1st and 2nd exposure means 3 and 5 receive a developing process by the 1st and 2nd 2-components developers of the 1st and 2nd developing means 4 and 6. The toner mixing rate of the 1st 2-components developer carrier is set small compared with the 2nd 2-components developer. The degree of the charged electric charge of the toner of the 1st double component developer is large compaed with the 2nd double component developer. As a result, the sticking force of the toner is increased to a photoreceptor. Thus the 1st 2-components developer never detaches nor mixes into the 2nd 2-components developer of the 2nd developing device 6. In such way, a highcontrast multi-color toner image can be formed for a long period of time.

73. 发明专利

JPS57120957A Tri-color electrophotographic method 失效
标题翻译：三色电子方法
公开(公告)号：JPS57120957A
公开(公告)日：1982-07-28
申请号：JP585481
申请日：1981-01-20
申请人： Hitachi Ltd
发明人： HOSHI NOBUYOSHI , ANZAI MASAYASU , KOMATSU ISAMU
IPC分类号： G03G15/01
CPC分类号： G03G15/0152 , G03G15/0163
摘要： PURPOSE:To prevent the color mixture and the lowering of the development density in the tri-color recording, by performing the negative exposure and the inversion development in the first and the second exposure and development and by performing the positive exposure and the normal development in the third exposure and development. CONSTITUTION:When a recording material 1 charged uniformly is subjected to the first and the second negative exposure and inversion development, the quantity of charged electric charge of a toner 10 stuck to the second latent image 19 is made larger than that of a toner 6 stuck to the first latent image 18 to prevent the toner 10 from sticking onto the toner 6. Next, when the recording material 1 is subjected to positive exposure by the third light 21, the third latent image 22 becomes a positive latent image of a charged potential Vo, and places where toners 6 and 10 are stuck have respective toner potentials, and other regions have the residual potential, and they have a low potential together. Therefore, when the third latent image 22 is developed by the third toner 23 which is charged with the polarity opposite to that of the charged potential, the toner 23 does not stick onto toners 6 and 10. Consequently, the color mixture and the lowering of density are prevented.
摘要翻译：目的：为了防止三色记录中的混色和显影密度的降低，通过在第一曝光和第二曝光和显影中进行负曝光和反转显影，并且通过进行正曝光和正常显影第三次曝光和发展。构成：当均匀充电的记录材料1经受第一和第二负曝光和反转显影时，粘附在第二潜像19上的调色剂10的带电电荷量大于调色剂6粘着的量到第一潜像18以防止调色剂10粘附到调色剂6.接下来，当通过第三光21对记录材料1进行正曝光时，第三潜像22成为带电电位的正潜像 Vo和调色剂6和10所在的位置具有各自的调色剂电位，并且其它区域具有残留电位，并且它们一起具有低电位。因此，当第三潜像22由与充电电位相反极性的第三调色剂23显影时，调色剂23不会粘到调色剂6和10上。因此，混色和降低防止密度。

74. 发明专利

JPS5778555A Electrophotogaphic method 失效
标题翻译：电泳方法
公开(公告)号：JPS5778555A
公开(公告)日：1982-05-17
申请号：JP15384580
申请日：1980-11-04
申请人： Hitachi Ltd
发明人： KOMATSU ISAMU , HOSHI NOBUYOSHI , ANZAI MASAYASU
IPC分类号： G03G15/01 , G03G15/08
CPC分类号： G03G15/0126
摘要： PURPOSE:To prevent sticking of a toner in areas of a photoreceptor where developing is not required by making the developing function of a developing device ineffective when there are uncharged parts in a reversal development region. CONSTITUTION:At the start of operation, a photoreceptor 1 is electrostatically charged uniformly with a corona charger 2. When the uniformly charged area after the formation of latent images with an exposure device 3 comes into the developing region of a reversal developing device 11, the developing device is moved and reversal developing is accomplished. Further, when it is desired to form images of two colors, the unexposed region where the uniformly charged charge remains is subjected to the 2nd image exposure 5 and is formed with a latent image, after which it is developed with the 2nd developing device 12. While the uniformly charged area is in a developing region after passage of the latent image part through the 1st and 2nd reversal developing regions, the developing devices are retreated. It is equally well to scrap off the developer on the developing rolls with scrape plates to prohibit developing in place of moving the above-mentioned developing devices.
摘要翻译：目的：为了防止在反转显影区域中存在不带电部分的显影装置的显影功能无效时，不需要显影的感光体区域中的调色剂粘着。构成：在操作开始时，感光体1用电晕充电器2均匀地静电充电。当用曝光装置3形成潜像后的均匀充电区域进入反转显影装置11的显影区域时，移动显影装置并实现反转显影。此外，当需要形成两种颜色的图像时，剩余均匀充电的电荷的未曝光区域经受第二次曝光5并且形成潜像，然后用第二显影装置12显影。当通过第一和第二反转显影区域的均匀带电区域在潜像部分通过之后的显影区域中时，显影装置被退回。用刮板刮除显影辊上的显影剂同样好，以阻止显影而不是移动上述显影装置。

75. 发明专利

JPS56122044A ELECTRONIC PHOTOGRAPHY METHOD 失效
公开(公告)号：JPS56122044A
公开(公告)日：1981-09-25
申请号：JP2414980
申请日：1980-02-29
申请人： HITACHI LTD
发明人： HOSHI NOBUYOSHI , ANZAI MASAYASU , KOMATSU ISAMU
IPC分类号： G03G13/01 , G03G15/01
摘要： PURPOSE:To obtain a record information having a high degree of print importance in the form of a clear double-color picture, by deciding the priority based on the degree of print importance of a plural number of record information and then carrying out a successive exposure and development according to the degree of importance. CONSTITUTION:The first beam 3 radiated from the laser beam source 19 is modulated through the modulator to the data value, i.e., the first information desiring a perfect printing and then scanned by the rotary mirror 21 to be exposed at the photoconductive drum 1 that is electrified uniformly by the electrifier 2 and through the lens 22. This drum 1 is developed by the first toner 5 of the first developer 4 and then exposed by the positive format film 23 on which the small dots serving as the background for the print of the data value, i.e., the first information are printed plus the second beam 6 that is product at the light source 24 and passes through the lens 25. Then the drum 1 is led to the second developer 7 to receive a normal development by the second toner 8 and then transcribed onto the recording paper via the transcriber 10.

76. 发明专利

JPS533275A TEMPRETURE DETECTING APPARATUS 失效
公开(公告)号：JPS533275A
公开(公告)日：1978-01-12
申请号：JP7635076
申请日：1976-06-30
申请人： HITACHI LTD
发明人： SUGAWARA TOORU , SUZUKI KIYOMITSU , KOMATSU ISAMU , KOBORI SHIGEYUKI , TAKAHASHI TOORU , UENO SADATEI
IPC分类号： G01R19/145 , G01R19/32
摘要： PURPOSE:For a catalyst converter in the exhaust system of automobiles, a conventional thermocouple to drive the lead switch is provided and a coil is connected to same. This is connected to make the No.2 coil in closed circuit and connected to the hysterisis width of the actuating temperature to narrow down the hysterisis width of the actuating tempereture.

77. 发明专利

JPS5295072A HIGH TEMPERATURE SWITCH 失效
公开(公告)号：JPS5295072A
公开(公告)日：1977-08-10
申请号：JP1133476
申请日：1976-02-06
申请人： HITACHI LTD
发明人： KOBORI SHIGEYUKI , AMANO MATSUO , KOMATSU ISAMU , SUGAWARA TOORU
IPC分类号： H01H35/00 , H01H37/00

78. 发明专利

JPS5280074A HIGH TEMPERATURE DETECTOR 失效
公开(公告)号：JPS5280074A
公开(公告)日：1977-07-05
申请号：JP15497175
申请日：1975-12-26
申请人： HITACHI LTD
发明人： YAMADA KAZUJI , KOBORI SHIGEYUKI , AMANO MATSUO , KIMURA ICHIRO , SUGAWARA TOORU , KOMATSU ISAMU
IPC分类号： G01J5/02 , G01J5/06 , G01J5/28
摘要： PURPOSE:In a device of measuring temperature by converting a part of the radiation energy emitted by the subject object being heated to a high temperature within a blast furance, etc. to the change in electrical conductivity, the light of the wavelength region unnecessary for measurement is allowed to transmit through the device, whereby the evolution of heat in the device is prevented.

79. 发明专利

JPS5257791A PHOTO TRANSISTOR CIRCUIT WITH TEMPERATURE COMPENSATION 失效
公开(公告)号：JPS5257791A
公开(公告)日：1977-05-12
申请号：JP13298475
申请日：1975-11-07
申请人： HITACHI LTD
发明人： SUGAWARA TOORU , KOBORI SHIGEYUKI , AMANO MATSUO , YAMADA KAZUJI , KOMATSU ISAMU , KIMURA ICHIRO
IPC分类号： H01L31/10 , H01L31/16
摘要： PURPOSE:To compensate the temperature effect of a photo transistor by using a general-purpose transistor whose collector and base are connected by a resistor, and regulating the base current.

80. 发明专利

JPH0333767A COLOR PRINTING SYSTEM 失效
公开(公告)号：JPH0333767A
公开(公告)日：1991-02-14
申请号：JP10581690
申请日：1990-04-20
申请人： HITACHI LTD
发明人： ANZAI MASAYASU , HOSHI NOBUYOSHI , KOMATSU ISAMU
IPC分类号： G03G15/01 , B41J2/525 , G03G9/09
摘要： PURPOSE:To reduce the loss of a toner image and a color mixture and to improve a printing quality by impressing the bias voltage of the same polarity as the electrification of a photoconductor at the time of invertingly developing a second latent image and executing a magnetic brush development with two- component consisting of non-magnetic toner and a specific high resistance from a second and subsequent colors. CONSTITUTION:At the time of invertingly developing the second latent image, the bias voltage of the same polarity as the electrification of the photoconductor is impressed, and at the second and subsequent colors, the magnetic brush development with high resistant two-component consisting of the non-magnetic toner and a high resistance magnetic carrier at 10 OMEGAcm or above is executed. When the high resistance magnetic carrier is used, the attracting force of the carrier and toner is small, a electric field frequency prepared by a photoconductor 1 surface and a magnetic brush is small, in inverted electric field is held, thereby, a first toner image 12 is attracted to the photoconductor 1 surface, and simultaneously, the force to remove it by the carrier is small. Thus, the loss of the toner image and the color mixture can be reduced, and the excellent printing quality can be obtained.

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