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1. 发明授权

US06847791B2 Image formation controlling method and image forming apparatus 有权
标题翻译：图像形成控制方法和图像形成装置
公开(公告)号：US06847791B2
公开(公告)日：2005-01-25
申请号：US10626059
申请日：2003-07-23
申请人： Takashi Kitagawa , Kaori Dakeshita , Toshiaki Ino , Takayuki Yamanaka , Eiichi Kido
发明人： Takashi Kitagawa , Kaori Dakeshita , Toshiaki Ino , Takayuki Yamanaka , Eiichi Kido
IPC分类号： G01N21/47 , G01N9/00 , G03G15/00 , G03G15/01 , G03G15/08 , G03G21/00 , H04N1/23 , H04N1/29 , H04N1/60
CPC分类号： H04N1/6033 , G03G15/0131 , G03G15/0194 , G03G15/5058 , G03G2215/00059 , G03G2215/0164 , G03G2221/1603
摘要： Before replacement of constituent parts of an image density sensor or of other image forming units, the image density of a formed test toner patch image is detected by the image density sensor and conditions for image formation are controlled. After replacement of the constituent parts, the image density sensor detects the image density of a test toner patch image which is formed based on the controlled conditions for image formation. The optical output and/or the optical sensitivity is adjusted so that a detected value becomes a predetermined reference value, to calibrate the image density sensor. With this image formation controlling method, the image density sensor can be calibrated easily and precisely, the image density of a toner pattern image can be held proper and a stable high-quality image can be obtained.
摘要翻译：在更换图像浓度传感器或其它图像形成单元的组成部分之前，通过图像浓度传感器检测所形成的测试调色剂色块图像的图像浓度，并且控制用于图像形成的条件。在更换构成部件之后，图像浓度传感器检测基于图像形成的受控条件形成的测试色粉贴片图像的图像浓度。调整光学输出和/或光学灵敏度，使得检测值成为预定的参考值，以校准图像浓度传感器。利用该图像形成控制方法，可以容易且精确地校准图像浓度传感器，可以使调色剂图案图像的图像浓度保持正确，并且可以获得稳定的高质量图像。

2. 发明授权

US06678491B2 Optical electric charge removal device and image formation apparatus including the same 有权
标题翻译：光学电荷去除装置及包括其的图像形成装置
公开(公告)号：US06678491B2
公开(公告)日：2004-01-13
申请号：US10097142
申请日：2002-03-13
申请人： Eiichi Kido , Toshiaki Ino , Takayuki Yamanaka , Toshio Yamanaka , Hideaki Kadowaki , Mitsuyoshi Terada , Kaori Fujii , Takashi Kitagawa
发明人： Eiichi Kido , Toshiaki Ino , Takayuki Yamanaka , Toshio Yamanaka , Hideaki Kadowaki , Mitsuyoshi Terada , Kaori Fujii , Takashi Kitagawa
IPC分类号： G03G2100
CPC分类号： G03G21/08
摘要： An optical electric charge removal device mountable on an image formation apparatus of an electrophotographic system for removing residual charges on a photosensitive member by light irradiation is provided. The optical electric charge removal device includes a point light source provided in the image formation apparatus; and an optical conductor, mountable on a process cartridge which is detachable from the image formation apparatus, for guiding light incident from the point light source to the photosensitive member.
摘要翻译：提供一种安装在用于通过光照射去除感光构件上的残留电荷的电子照相系统的图像形成装置上的光学电荷去除装置。光学电荷去除装置包括设置在图像形成装置中的点光源; 以及可以安装在处理盒上的光学导体，该处理盒可与图像形成装置分离，用于将从点光源入射的光引导到感光构件。

3. 发明授权

US06215968B1 Image forming apparatus with half-tone density control 有权
标题翻译：具有半色调密度控制的图像形成装置
公开(公告)号：US06215968B1
公开(公告)日：2001-04-10
申请号：US09545721
申请日：2000-04-07
申请人： Makoto Uehara , Toshihiro Ohta , Yasutaka Maeda , Takashi Kitagawa , Katsuhiro Nagayama , Shouji Tomita , Kaori Dakeshita , Daisaku Imaizumi
发明人： Makoto Uehara , Toshihiro Ohta , Yasutaka Maeda , Takashi Kitagawa , Katsuhiro Nagayama , Shouji Tomita , Kaori Dakeshita , Daisaku Imaizumi
IPC分类号： G03G1500
CPC分类号： H04N1/4078
摘要： A high density detecting toner pattern is formed on a photosensitive body and a high density correction is effected by comparing a value detected by a reflection sensor with a high density reference value so as to maintain an image density at a specific level. An image density correcting section adopts a result of the preceding high density correction as the high density reference value, and compares the same with a result of a current high density correction. The image density correcting section effects the half-tone density correction only when a difference reaches or exceeds a preset difference reference value by forming a half-tone density detecting toner pattern on the photosensitive body and comparing a value detected by the reflection sensor with a half-tone reference value. Consequently, it has become possible to provide an image forming apparatus which can maintain a density output of an entire image at a specific level for any kind of images including solid, line, and half-tone, etc. while shortening a time required for the density correction and reducing a quantity of toner consumed for the density correction.
摘要翻译：在感光体上形成高密度检测调色剂图案，并且通过将由反射传感器检测的值与高密度参考值进行比较来实现高密度校正，以将图像浓度保持在特定水平。图像浓度校正部分采用先前的高浓度校正的结果作为高密度参考值，并将其与当前高密度校正的结果进行比较。图像浓度校正部仅通过在感光体上形成半色调浓度检测调色剂图案而将差分达到或超过预设差值基准值来实现半色调浓度校正，并将反射传感器检测到的值与半参考值。因此，可以提供一种图像形成装置，其可以将包括实线，线条和半色调等的任何种类的图像的整个图像的浓度输出保持在特定的水平，同时缩短所需的时间密度校正和减少密度校正所消耗的调色剂量。

4. 发明授权

US06516162B2 Image forming apparatus with automatic density compensation 有权
标题翻译：具有自动浓度补偿的图像形成装置
公开(公告)号：US06516162B2
公开(公告)日：2003-02-04
申请号：US09839835
申请日：2001-04-20
申请人： Toshiaki Ino , Hiroshi Kawamoto , Masayasu Narimatsu , Takashi Kitagawa , Ken Yamagishi , Yuka Sakagami
发明人： Toshiaki Ino , Hiroshi Kawamoto , Masayasu Narimatsu , Takashi Kitagawa , Ken Yamagishi , Yuka Sakagami
IPC分类号： G03G1500
CPC分类号： G03G15/5041 , G03G2215/00042
摘要： The object of this invention is to provide an image forming apparatus capable of preventing decrease in image density at a rear end part of an image. A change in waveform in sensor outputs which is produced when a toner patch image is read by an optical sensor used for the process control is detected. The difference (Vg−Vd) between grid voltage Vg and development bias voltage Vd is changed only between a target value of 300 V corresponding to low-output side threshold value Va and a target value of 100 V corresponding to high-output side threshold value Vb according to the sensor output deflection &Dgr;V so that the difference (Vg−Vd) decreases as the image loss level increases. The difference between the grid voltage Vg and the development bias voltage Vd is set so as to prevent the image loss in the rear end part of an image.
摘要翻译：本发明的目的是提供一种能够防止图像后端部的图像浓度降低的图像形成装置。检测由用于过程控制的光学传感器读取调色剂补片图像时产生的传感器输出中的波形变化。栅极电压Vg与显影偏压Vd之差（Vg-Vd）仅在对应于低输出侧阈值Va的目标值300V与高输出侧阈值对应的目标值100V之间变化 Vb根据传感器输出偏差DELTAV，使差值（Vg-Vd）随着图像损耗水平的增加而降低。设定电网电压Vg与显影偏压Vd之间的差异，以防止图像后端部的图像损失。

5. 发明授权

US07272332B2 Image forming apparatus and density correction data creation method used therein 有权
标题翻译：其中使用的图像形成装置和密度校正数据创建方法
公开(公告)号：US07272332B2
公开(公告)日：2007-09-18
申请号：US11158675
申请日：2005-06-21
申请人： Takashi Kitagawa , Mitsuru Tokuyama , Toshiaki Ino , Kiyofumi Morimoto , Yasuhiro Nishimura
发明人： Takashi Kitagawa , Mitsuru Tokuyama , Toshiaki Ino , Kiyofumi Morimoto , Yasuhiro Nishimura
IPC分类号： G03G15/00
CPC分类号： G03G15/5041 , G03G2215/00042 , G03G2215/0119
摘要： An image forming apparatus is arranged such that one reference test pattern image expressed in a tone expression is formed on the predetermined image bearing member, the tone expression being different from a tone expression of an image formed in the print modes that carry out a normal print process, and density of the formed reference test pattern image is detected, and subsequently sets of density correction data for the print modes are created based upon the detected density.
摘要翻译：图像形成装置被布置成使得在预定图像承载部件上形成以色调表达式表示的一个参考测试图案图像，该色调表达式与在执行正常打印的打印模式中形成的图像的色调表达不同检测所形成的基准测试图案图像的处理和密度，随后基于检测到的浓度创建用于打印模式的浓度校正数据集合。

6. 发明申请

US20060060751A1 Optical discharge apparatus and image forming apparatus containing the same 有权
标题翻译：光放电装置及含有该放电装置的成像装置
公开(公告)号：US20060060751A1
公开(公告)日：2006-03-23
申请号：US11226389
申请日：2005-09-15
申请人： Yasuhiro Nishimura , Toshiaki Ino , Mitsuru Tokuyama , Kiyofumi Morimoto , Takashi Kitagawa
发明人： Yasuhiro Nishimura , Toshiaki Ino , Mitsuru Tokuyama , Kiyofumi Morimoto , Takashi Kitagawa
IPC分类号： H01J5/16 , H01L27/00 , H01J3/14
CPC分类号： G03G21/08
摘要： In an optical discharge apparatus used in an electrographic image forming apparatus, by forming, on a light guiding member, a diffusing reflecting face for reflecting light from an LED lamp towards a photosensitive drum, and by supplementing the amount of light by altering the height of the diffusing reflecting face to the light emitting face and the width of the diffusing reflecting face in accordance with their distance from the light source, the light intensity distribution of the irradiating light that is irradiated onto the photosensitive drum is made uniform. Furthermore, since light that leaks from the diffusing reflecting face is reflected by a reflecting film that is pasted onto an upper face in the vicinity of a rear end portion of the light guiding member, and returned to the interior of the light guiding member, the amount of light that is irradiated from the light emitting face in the vicinity of the rear end portion of the light guiding member increases, and thus it is possible to further increase the uniformity of the light intensity distribution of the irradiating light. Furthermore, an optical discharge apparatus used in an electrographic image forming apparatus is provided with a light guiding member that is arranged facing the photosensitive drum of the image forming apparatus, and an LED lamp for irradiating the light onto the light incident face of the light guiding member. A diffusing reflecting face for reflecting the light from the LED lamp toward the photosensitive drum is formed on the light guiding member. The rear end face of the light guiding member is an optically transparent face, and the amount of irradiating light that is irradiated onto the photosensitive drum from the vicinity of the rear end portion of the light guiding member increases by forming a reflecting face behind the rear end face of the light guiding member.
摘要翻译：在电子照相图像形成装置中使用的光学放电装置中，通过在导光部件上形成用于将来自LED灯的光反射到感光鼓的扩散反射面，并且通过改变光的高度来补充光量根据其与光源的距离，扩散反射面到发光面和扩散反射面的宽度，照射到感光鼓上的照射光的光强度分布均匀。此外，由于从扩散反射面泄漏的光被粘贴在导光部件的后端部附近的上表面的反射膜反射并返回到导光部件的内部，从导光部件的后端部附近的发光面照射的光量增加，因此能够进一步提高照射光的光强度分布的均匀性。此外，在电子照相图像形成装置中使用的光学放电装置设置有与图像形成装置的感光鼓相对配置的导光部件，以及用于将光照射到导光体的光入射面的LED灯会员。在导光构件上形成用于将来自LED灯的光反射到感光鼓的扩散反射面。导光构件的后端面是光学透明面，并且从导光构件的后端部附近照射到感光鼓上的照射光的量通过在后方形成反射面而增加导光部件的端面。

7. 发明授权

US07251422B2 Image correction method and image forming apparatus 有权
标题翻译：图像校正方法和图像形成装置
公开(公告)号：US07251422B2
公开(公告)日：2007-07-31
申请号：US11084493
申请日：2005-03-18
申请人： Mitsuru Tokuyama , Toshiaki Ino , Kiyofumi Morimoto , Takashi Kitagawa , Yasuhiro Nishimura
发明人： Mitsuru Tokuyama , Toshiaki Ino , Kiyofumi Morimoto , Takashi Kitagawa , Yasuhiro Nishimura
IPC分类号： G03G15/00 , H04N1/407
CPC分类号： G03G15/5058 , G03G2215/00059
摘要： One embodiment of an image correction method is an image correction method for correcting image forming condition(s). The image correction method includes forming, on photoreceptor(s), correction test pattern(s) having continuously varying toner gradation; wherein a single correction test pattern in which density is varied in sequence from high to low in paper transport direction(s) is formed as a result of controlling exposing unit laser power(s) while photoreceptor charging potential(s) is/are held constant, or while develop bias(es) is/are held constant, or while photoreceptor charging potential(s) is/are held constant and develop bias(es) is/are held constant. In such case, total length(s) in paper transport direction(s) of such correction test pattern(s) is/are less than or equal to circumference(s) of photoreceptor(s).
摘要翻译：图像校正方法的一个实施例是用于校正图像形成条件的图像校正方法。图像校正方法包括在感光体上形成具有连续变化的调色剂层次的校正测试图案; 其中，由于控制曝光单元激光功率，同时感光体充电电位保持恒定，所以形成了一个单独的校正测试图案，其中密度从纸张输送方向的高到低依次变化。或者当显影偏差保持恒定时，或者当感光体充电电势保持恒定并且发生偏压保持恒定时。在这种情况下，这种校正测试图案的纸张传输方向上的总长度小于或等于感光体的周长。

8. 发明申请

US20060275048A1 Image forming apparatus and intake/exhaust system 有权
标题翻译：图像形成装置和进/排气系统
公开(公告)号：US20060275048A1
公开(公告)日：2006-12-07
申请号：US11444391
申请日：2006-06-01
申请人： Yasuhiro Nishimura , Toshiaki Ino , Mitsuru Tokuyama , Takashi Kitagawa , Kiyofumi Morimoto
发明人： Yasuhiro Nishimura , Toshiaki Ino , Mitsuru Tokuyama , Takashi Kitagawa , Kiyofumi Morimoto
IPC分类号： G03G21/20
CPC分类号： G03G15/0258 , G03G15/0291 , G03G21/206 , G03G2215/028 , G03G2221/1645
摘要： The image forming apparatus according to the present invention carries out intake and exhaust so as to generate air flow between a photoconductor drum and a charger in a long side direction of the charger. As a result, it is possible to always exhaust O3, NOx, and the like caused by corona discharge. Therefore, it is possible to always form a high-quality image without deterioration of images caused by charge unevenness.
摘要翻译：根据本发明的图像形成装置执行进气和排气，以在充电器的长边方向上产生感光鼓和充电器之间的空气流。结果，可以总是排出由电晕放电引起的O 3 3，NO x等。因此，可以始终形成高质量的图像而不会由电荷不均匀引起的图像劣化。

9. 发明授权

US07498559B2 Optical discharge apparatus and image forming apparatus containing the same 有权
标题翻译：光放电装置及含有该放电装置的成像装置
公开(公告)号：US07498559B2
公开(公告)日：2009-03-03
申请号：US11226389
申请日：2005-09-15
申请人： Yasuhiro Nishimura , Toshiaki Ino , Mitsuru Tokuyama , Kiyofumi Morimoto , Takashi Kitagawa
发明人： Yasuhiro Nishimura , Toshiaki Ino , Mitsuru Tokuyama , Kiyofumi Morimoto , Takashi Kitagawa
IPC分类号： H01J3/14 , H01J5/16 , H01J40/14
CPC分类号： G03G21/08
摘要： In an optical discharge apparatus used in an electrographic image forming apparatus, by forming, on a light guiding member, a diffusing reflecting face for reflecting light from an LED lamp towards a photosensitive drum, and by supplementing the amount of light by altering the height of the diffusing reflecting face to the light emitting face and the width of the diffusing reflecting face in accordance with their distance from the light source, the light intensity distribution of the irradiating light that is irradiated onto the photosensitive drum is made uniform. An optical discharge apparatus may include a light guiding member arranged facing a photoreceptor; and a light source, a diffusing reflecting face for reflecting the light from the light source toward the photoreceptor is formed on the light guiding member, and a reflecting member is arranged on an upper face in the vicinity of an end portion of the light guiding member.
摘要翻译：在电子照相图像形成装置中使用的光学放电装置中，通过在导光部件上形成用于将来自LED灯的光反射到感光鼓的扩散反射面，并且通过改变光的高度来补充光量根据其与光源的距离，扩散反射面到发光面和扩散反射面的宽度，照射到感光鼓上的照射光的光强度分布均匀。光学放电装置可以包括面向感光体布置的导光部件; 并且在导光部件上形成有用于将来自光源的光反射到感光体的漫射用反射面，反射部件配置在导光部件的端部附近的上表面。

10. 发明申请

US20050281573A1 Image forming apparatus and density correction data creation method used therein 有权
标题翻译：其中使用的图像形成装置和密度校正数据创建方法
公开(公告)号：US20050281573A1
公开(公告)日：2005-12-22
申请号：US11158675
申请日：2005-06-21
申请人： Takashi Kitagawa , Mitsuru Tokuyama , Toshiaki Ino , Kiyofumi Morimoto , Yasuhiro Nishimura
发明人： Takashi Kitagawa , Mitsuru Tokuyama , Toshiaki Ino , Kiyofumi Morimoto , Yasuhiro Nishimura
IPC分类号： G03G15/00
CPC分类号： G03G15/5041 , G03G2215/00042 , G03G2215/0119
摘要： An image forming apparatus is arranged such that one reference test pattern image expressed in a tone expression is formed on the predetermined image bearing member, the tone expression being different from a tone expression of an image formed in the print modes that carry out a normal print process, and density of the formed reference test pattern image is detected, and subsequently sets of density correction data for the print modes are created based upon the detected density.
摘要翻译：图像形成装置被布置成使得在预定图像承载部件上形成以色调表达式表示的一个参考测试图案图像，该色调表达式与在执行正常打印的打印模式中形成的图像的色调表达不同检测所形成的基准测试图案图像的处理和密度，随后基于检测到的浓度创建用于打印模式的浓度校正数据集合。

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