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81. 发明专利

JP2007140145A Image forming apparatus and image density control system 有权
标题翻译：图像形成装置和图像密度控制系统
公开(公告)号：JP2007140145A
公开(公告)日：2007-06-07
申请号：JP2005334029
申请日：2005-11-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HASEGAWA MAKOTO , TAKEUCHI NOBUTAKA , FUJIMORI KOUTA , HIRAYAMA YUJI , TANAKA KAYOKO , KATO SHINJI , ENAMI TAKASHI , KOBAYASHI KAZUMI , SHIMIZU KIICHIRO
IPC分类号： G03G15/01
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of individually setting priorities among image quality, the number of image to be output and a waiting time in accordance with user's demand, even when a toner-end is detected, and to provide an image density control system.
SOLUTION: In the image forming apparatus, when the toner-end is detected, an operation of image output in the same color as the developing color of a developing device wherein the toner-end is detected is inhibited, and an operation of outputting an image in the same color as the developing color other than the developing color of the developing apparatus wherein the toner-end is detected is executed. Regarding the operation of outputting the image in the same color as the developing color other than the developing color of the developing device wherein the toner-end is detected, it can be switch whether to execute an image density control operation.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像形成装置，即使在检测到调色剂结束时，也能够根据用户的要求分别设定图像质量，要输出的图像数量和等待时间之间的优先级的图像形成装置，以及以提供图像浓度控制系统。解决方案：在图像形成装置中，当检测到调色剂末端时，抑制了与检测到调色剂末端的显影装置的显影颜色相同颜色的图像输出的操作，并且操作输出与显影装置的显影颜色以外的显影色相同的颜色的图像，其中检测到调色剂结束。关于输出与显影装置的显影颜色以外的显影颜色相同的颜色的图像的操作，其中检测到调色剂末端，可以切换是否执行图像浓度控制操作。版权所有（C）2007，JPO＆INPIT

82. 发明专利

JP2007010981A Developing device, process cartridge, and image forming apparatus 审中-公开
标题翻译：开发设备，过程盒和图像形成装置
公开(公告)号：JP2007010981A
公开(公告)日：2007-01-18
申请号：JP2005191704
申请日：2005-06-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MURAKAMI WAKAKO , SUZUKI HIROHARU , FURUICHI YASUSHI , ENOKI SHIGEKAZU , KATO SHINJI , HATAKEYAMA KUMIKO
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device, a process cartridge, and an image forming apparatus such that a toner or developer which is supplied can speedily and sufficiently be agitated. SOLUTION: The developing device is equipped with a developer tank 20 containing the developer consisting of a toner and a carrier, and the developer tank 20 is provided with a developing roll 21, a first carrying screw 22 which is adjacent to the developing roll 21 and agitates and carries the developer, a second carrying screw 23 which agitates and carries the developer in the opposite direction from the first carrying screw 22, a partition member 24 which partitions off the first carrying screw 22 and second carrying screw 23, and a first communication portion 25 and a second communication portion 26 provided at both ends of the partition member 24; and a third agitation and conveyance area A3 is provided separately from the first communication portion 25 moving the developer from the first carrying screw 22 to the second carrying screw 23 and the toner supplied by a toner supply means 40 is supplied into the developer tank 20 from the third agitation and conveyance area A3. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种显影装置，处理盒和图像形成装置，使得供应的调色剂或显影剂可以快速和充分地被搅动。解决方案：显影装置配备有容纳由调色剂和载体组成的显影剂的显影槽20，显影槽20设置有显影辊21，与显影辊相邻的第一输送螺杆22 辊21并搅拌并携带显影剂，第二输送螺杆23，其从第一输送螺杆22沿相反方向搅拌并携带显影剂;隔离第一输送螺杆22和第二输送螺杆23的分隔部件24;以及设置在分隔构件24的两端的第一连通部25和第二连通部26; 并且与将显影剂从第一输送螺杆22移动到第二输送螺杆23的第一连通部25分开设置第三搅拌输送区域A3，由调色剂供给装置40供给的调色剂从显影剂罐20供给到显影槽20 第三搅拌输送区域A3。版权所有（C）2007，JPO＆INPIT

83. 发明专利

JP2006234862A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2006234862A
公开(公告)日：2006-09-07
申请号：JP2005045021
申请日：2005-02-22
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： FUJIMORI KOUTA , HASEGAWA MAKOTO , SAWAYAMA NOBORU , KATO SHINJI , ISHIBASHI HITOSHI , IKEGAMI KAYOKO , HIRAYAMA YUJI , ENAMI TAKASHI , KOBAYASHI SHINJI , KOBAYASHI KAZUMI , UCHIDA FUKUTOSHI , WATANABE NAOTO , KAMACHI HIDEKI
IPC分类号： G03G15/00 , B41J2/44 , G03G15/01 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of avoiding the insufficiency of image density and the excess of image density of an entire print-out image caused by the adjustment of beam emitting intensity while suppressing the density irregularity in a main scanning direction of the print-out image by adjusting the beam emitting intensity.
SOLUTION: The image forming apparatus is provided with an image forming performance adjusting means which performs image forming performance adjusting processing that the image forming performance of an image forming means is adjusted based on the result of detection by a toner adhesive amount detection means to detect toner adhesive amount per unit area to a reference toner image on a photoreceptor or the reference toner image transferred to an intermediate transfer belt from the photoreceptor by forming the prescribed reference toner image on the photoreceptor before succeeding print-out operation based on image information in performing beam intensity adjusting processing (S6).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像形成装置，能够避免图像浓度的不足和通过调节光束发射强度而引起的整个打印输出图像的图像浓度过剩，同时抑制在通过调整光束发射强度来打印输出图像的主扫描方向。解决方案：图像形成装置设置有图像形成性能调整装置，其执行图像形成性能调整处理，使得根据调色剂粘合剂量检测装置的检测结果调整图像形成装置的图像形成性能通过基于图像信息在接下来的打印输出操作之前通过在感光体上形成规定的基准调色剂图像来检测感光体上的基准调色剂图像或从感光体转印到中间转印带的基准调色剂图像的每单位面积的调色剂粘合量进行光束强度调整处理（S6）。版权所有（C）2006，JPO＆NCIPI

84. 发明专利

JP2006139180A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2006139180A
公开(公告)日：2006-06-01
申请号：JP2004330339
申请日：2004-11-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ISHIBASHI HITOSHI , SAWAYAMA NOBORU , KATO SHINJI , HASEGAWA MAKOTO , FUJIMORI KOUTA , WATANABE NAOTO , HIRAYAMA YUJI , ENAMI TAKASHI , KOBAYASHI SHINJI , KOBAYASHI KAZUMI , UCHIDA FUKUTOSHI
IPC分类号： G03G21/00 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of maintaining accuracy in terms of the sensitivity correction (calibration) of an optical detecting means at any time even when the characteristics of developer (developing ability) fluctuate. SOLUTION: Regarding the image forming apparatus wherein the sensitivity correction (calibration) of the optical detecting means 40 is performed based on the two-dimensional arrangement data of the output voltage of specular-reflected light and the output voltage of diffused/reflected light of the gradation patterns obtained as the detection results by the optical detecting means 40 capable of simultaneously detecting the specular-reflected light and the diffused/reflected light, and then, the sticking quantity or the image density is obtained, the pattern density value of the gradation pattern used for the calculation of the sensitivity of the optical detecting means 40 is made variable based on the former detection results. Prior to the formation of the gradation pattern, referring to the former detection results stored in a non-volatile memory area, the density value of the gradation pattern is determined based on the reference value, then, the gradation pattern is formed on a transfer belt 18. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使当显影剂（显影能力）的特性波动时，也可以随时提供能够在光学检测装置的灵敏度校正（校准）方面保持精度的图像形成装置。解决方案：关于基于镜面反射光的输出电压和扩散/反射的输出电压的二维排列数据执行光学检测装置40的灵敏度校正（校准）的图像形成装置作为能够同时检测镜面反射光和扩散/反射光的光学检测装置40的检测结果获得的灰度图案的光，然后获得粘附量或图像浓度，可以获得图案密度值根据前面的检测结果，使用于计算光学检测装置40的灵敏度的灰度图案可变。在形成渐变图案之前，参考存储在非易失性存储区域中的前一检测结果，基于参考值确定灰度图案的浓度值，然后在转印带上形成渐变图案 18.版权所有（C）2006，JPO＆NCIPI

85. 发明专利

JP2006133707A Image forming method and image forming apparatus 有权
标题翻译：图像形成方法和图像形成装置
公开(公告)号：JP2006133707A
公开(公告)日：2006-05-25
申请号：JP2004325660
申请日：2004-11-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAWAYAMA NOBORU , IKEGAMI KAYOKO , KAMACHI HIDEKI , KATO SHINJI , HASEGAWA MAKOTO , ISHIBASHI HITOSHI , FUJIMORI KOUTA , WATANABE NAOTO , HIRAYAMA YUJI , ENAMI TAKASHI , KOBAYASHI SHINJI , KOBAYASHI KAZUMI , UCHIDA FUKUTOSHI
IPC分类号： G03G15/01 , G03G15/16 , G03G21/14 , H04N1/23 , H04N1/29 , H04N1/46 , H04N1/60
摘要： PROBLEM TO BE SOLVED: To provide an image forming method, capable of preventing the increase in color slurring amount due to positional deviation between images caused by an error amount of position to be detected, by suppressing the increase in the positional deviation amount to be detected at correction of positional deviation. SOLUTION: When the positional deviation between images is detected by using a position detecting mark, having a set of transverse lines parallel to the main scanning direction and oblique lines inclined to the same, the position detecting mark is formed by allowing speed fluctuation phases to match each other, while securing a writing space of the mark constituting the transverse lines and the oblique lines, by setting the interval in the middle part between the transverse lines and oblique lines on the same color to λ/8 or smaller, with respect to circumferential length λ of a driving roller 5. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种图像形成方法，能够通过抑制位置偏差量的增加来防止由于由待检测位置的误差量引起的图像之间的位置偏差引起的着色量的增加在校正位置偏差时检测。解决方案：当通过使用位置检测标记检测图像之间的位置偏差时，具有与主扫描方向平行的一组横线和倾斜于其的倾斜线的位置检测标记，通过允许速度波动形成位置检测标记通过将相同颜色的横线和斜线之间的中间部分的间隔设定为λ/ 8以下，同时确保构成横线和斜线的标记的写入空间，使其相互匹配，与相对于驱动辊5的圆周长度λ。版权所有（C）2006，JPO＆NCIPI

86. 发明专利

JP2006047779A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2006047779A
公开(公告)日：2006-02-16
申请号：JP2004229724
申请日：2004-08-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAWAYAMA NOBORU , HIRAYAMA YUJI , KATO SHINJI , HASEGAWA MAKOTO , ISHIBASHI HITOSHI , FUJIMORI KOUTA , WATANABE NAOTO , IKEGAMI KAYOKO , ENAMI TAKASHI , KOBAYASHI SHINJI , KOBAYASHI KAZUMI , UCHIDA FUKUTOSHI
IPC分类号： G03G21/14 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To shorten the time required to form/detect a reference pattern image in process control, and to thereby improve productivity in an image forming operation (printing operation). SOLUTION: An image forming apparatus transfers the reference pattern image to an intermediate transfer belt 8 and detects the sticking state of the reference pattern image on the intermediate transfer belt 8 with a reflection type photo-sensor 40 serving as an image density detecting means, which is disposed downstream of a secondary transfer roller 19 as a transfer member, and alters conditions for image formation based upon the result of the detection. In the image forming apparatus, when the reference pattern image on the intermediate transfer belt 8 passes on the secondary transfer roller 19, a voltage having a polarity that is the same as the polarity of toner is applied to the secondary transfer roller 19 being in contact with the intermediate transfer belt 8. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：缩短在过程控制中形成/检测参考图案图像所需的时间，从而提高图像形成操作（打印操作）的生产率。解决方案：图像形成装置将参考图案图像转印到中间转印带8，并用作为图像浓度检测的反射型光电传感器40检测中间转印带8上的参考图案图像的粘附状态装置，其设置在作为转印构件的二次转印辊19的下游，并且基于检测结果改变成像条件。在图像形成装置中，当中间转印带8上的参考图案图像通过二次转印辊19时，将具有与调色剂的极性相同的极性的电压施加到接触的二次转印辊19 中间转印带8.版权所有（C）2006，JPO＆NCIPI

87. 发明专利

JP2006047681A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2006047681A
公开(公告)日：2006-02-16
申请号：JP2004228436
申请日：2004-08-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HASEGAWA MAKOTO , KATO SHINJI , ISHIBASHI HITOSHI , FUJIMORI KOUTA , WATANABE NAOTO , IKEGAMI KAYOKO , HIRAYAMA YUJI , ENAMI TAKASHI , KOBAYASHI SHINJI , KOBAYASHI KAZUMI , UCHIDA FUKUTOSHI , SAWAYAMA NOBORU
IPC分类号： G03G15/00 , G03G15/01 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus with which image control is prevented from being adversely affected by the contact/separation of a secondary transfer body with/from an intermediate transfer body when the image adjustment pattern is passed through the secondary transfer position. SOLUTION: The image forming apparatus has a control means for exerting process control or toner density control. The process control is exerted such that an image adjustment pattern is formed in an image non-formation area on an image carrier 2 and primarily transferred onto the intermediate transfer body 7, an amount of toner attached to the image adjustment pattern is detected by an optical detection sensor 16 disposed downstream of the secondary transfer position in the running direction of the intermediate transfer body 7, and conditions for image formation are changed according to the detection value of the detection sensor. The toner density control is exerted such that an amount of toner supplied is changed. In accordance with the type of an image forming operation, the control means alters the timing of the contact/separation of the secondary transfer body 14 with/from intermediate transfer body 7. This makes it possible to maintain high control accuracy and reduce time required for an image adjustment operation. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像形成装置，当图像调整图案通过时，防止图像控制受到二次转印体与中间转印体的接触/分离的不利影响二次转移位置。解决方案：图像形成装置具有用于进行过程控制或调色剂浓度控制的控制装置。施加过程控制，使得图像调整图案形成在图像载体2上的图像非形成区域中并且主要转印到中间转印体7上，附着到图像调整图案的调色剂的量通过光学检测传感器16设置在中间转印体7的行进方向上的二次转印位置的下游，并且根据检测传感器的检测值改变图像形成条件。调色剂浓度控制被施加使得供应的调色剂量改变。根据图像形成操作的类型，控制装置改变与中间转印体7之间的二次转印体14的接触/分离的定时。这使得可以保持高的控制精度并减少所需的时间图像调整操作。版权所有（C）2006，JPO＆NCIPI

88. 发明专利

JP2005148281A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2005148281A
公开(公告)日：2005-06-09
申请号：JP2003383667
申请日：2003-11-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KATO SHINJI
IPC分类号： G03G15/00 , G03G15/01 , G03G15/16 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus, in which no cleaning failure occurs and a stable toner concentration detection can be carried out. SOLUTION: The image forming apparatus is provided with a primary transfer roller 11 transferring a toner image formed on a plurality of photoreceptors 20 by being brought into contact with an intermediate transfer belt 10 and a secondary transfer roller 24 transferring the toner image transferred to the intermediate transfer belt 10 by being brought into contact with transfer paper 5. Concentration of a reference toner patch formed on each photoreceptor 20 is optically detected by a toner sticking quantity detecting means. Image density control is carried out on the basis of the detected result of the toner sticking quantity detecting means. The toner sticking quantity detecting means are installed by being shifted in each photoreceptor in the direction orthogonal to the moving direction and the transfer conditions for the primary transfer roller 11 are different in the reference toner patch 301 and the toner image. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像形成装置，其中不会发生清洁故障，并且可以进行稳定的调色剂浓度检测。解决方案：图像形成装置设置有一次转印辊11，其通过与中间转印带10和转印调色剂图像转印的二次转印辊24接触而转印形成在多个感光体20上的调色剂图像通过与转印纸5接触而转印到中间转印带10.通过调色剂粘附量检测装置光学检测在每个感光体20上形成的参考色调剂的浓度。基于调色剂粘附量检测装置的检测结果进行图像浓度控制。调色剂粘附量检测装置通过在每个感光体中沿与移动方向正交的方向移动而安装，并且一次转印辊11的转印条件在参考调色剂贴片301和调色剂图像中不同。版权所有（C）2005，JPO＆NCIPI

89. 发明专利

JP2005017661A Image forming apparatus and copying device 审中-公开
标题翻译：图像形成装置和复印装置
公开(公告)号：JP2005017661A
公开(公告)日：2005-01-20
申请号：JP2003182024
申请日：2003-06-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KAYAHARA SHIN , SAWAI YUJI , OGIYAMA HIROMI , KATO SHINJI , TAKEHARA ATSUSHI , YOSHIDA TAKESHI , FUJIWARA KOUKO
IPC分类号： G03G15/00 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To stably perform control of image density for over the long period. SOLUTION: In an image forming apparatus which forms a toner image based on reference pattern data on a toner image carrier 10 capable of carrying the respective toner images to be formed by toner supplied to a plurality of photo conductors 4Y, 4M, 4C, 4K to which exposure scan is performed, respectively based on image data and compensates density of the toner image based on the reference pattern data formed on the toner image carrier 10 and density of the toner image to be formed based on the image data based on density on the surface of the toner image carrier 10, a crack to be generated on the surface of the toner image carrier 10 is suppressed by setting initial surface roughness Rz of the toner image carrier 10 as less than 0.5 μm and setting Young's modulus as ≥ 3500 MPa and ≤ 7500 MPa of the toner image carrier 10. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：长时间稳定地执行图像浓度的控制。解决方案：在图像形成装置中，基于参考图案数据形成调色剂图像，该调色剂图像载体能够承载由多个光导体4Y，4M，4C供给的调色剂图像形成的各个调色剂图像，分别基于图像数据执行曝光扫描的4K，并且基于形成在调色剂图像载体10上的参考图案数据并基于基于图像数据的形成的调色剂图像的浓度来补偿调色剂图像的浓度在调色剂图像载体10的表面上的密度，通过将调色剂图像载体10的初始表面粗糙度Rz设定为小于0.5μm并且将杨氏模量设定为≥≥，来抑制在调色剂图像载体10的表面上产生的裂纹 3500MPa和≤7500MPa的调色剂图像载体10.版权所有（C）2005，JPO＆NCIPI

90. 发明专利

JP2005017621A Image forming device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2005017621A
公开(公告)日：2005-01-20
申请号：JP2003181425
申请日：2003-06-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KATO SHINJI , SAWAI YUJI , OGIYAMA HIROMI , KAYAHARA SHIN , TAKEHARA ATSUSHI , YOSHIDA TAKESHI , FUJIWARA KOUKO
IPC分类号： G03G15/01 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To propose a light reflection density detection method for stably detecting toner adhesion quantity and to provide a small image forming device with high productivity and high reliability.
SOLUTION: In the image forming device, it is constituted by providing a transfer body (secondary transfer roller) 24 for reference pattern detection, which is arranged oppositely to an intermediate transfer body 10 at a secondary transfer part and directly transfers a reference pattern image formed on the intermediate transfer body 10 without interposing a recording member and an optical reference pattern detection means (reflection density detection sensor) 310 to an image transferred on the transfer body for reference pattern detection and changing image forming conditions based on a detection result of the detection means. Thus, flexibility of design increases and image quality is enhanced since there are few restriction items of optical characteristics in material selection of the intermediate transfer body. In addition, the image forming conditions are appropriately controlled since detection of the light reflection density to the reference pattern is stably performed and the image forming device without toner scattering and scumming, etc. and with high stability is provided.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提出一种用于稳定地检测调色剂附着量的光反射浓度检测方法，并提供具有高生产率和高可靠性的小图像形成装置。解决方案：在图像形成装置中，通过在二次转印部分设置与中间转印体10相对设置的用于参考图案检测的转印体（二次转印辊）24，并直接转印基准形成在中间转印体10上的图案图像，而不将记录部件和光学参考图案检测装置（反射浓度检测传感器）310插入到转印体上转印的图像，用于参考图案检测和基于检测结果改变图像形成条件的检测装置。因此，由于中间转印体的材料选择中的光学特性的限制项目很少，因此设计的灵活性增加并且图像质量得到增强。此外，通过稳定地检测到对基准图案的光反射浓度的检测，适当地控制图像形成条件，并且提供没有调色剂飞散和浮渣等并且具有高稳定性的图像形成装置。版权所有（C）2005，JPO＆NCIPI

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