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    • 1. 发明专利
    • Image forming apparatus, method of deciding timing to perform image adjusting processing, and program
    • 图像形成装置,决定执行图像调整处理的时序的方法和程序
    • JP2009294487A
    • 2009-12-17
    • JP2008148768
    • 2008-06-06
    • Sharp Corpシャープ株式会社
    • MORIKUNI SHUICHI
    • G03G15/08G03G15/00
    • G03G15/556G03G15/0853G03G15/0877G03G15/553
    • PROBLEM TO BE SOLVED: To keep toner concentration at a predetermined value by supplying toner by an inductance detection system, and to lessen performance of image quality adjusting processing by making timing to perform the image quality adjusting processing variable in accordance with circumstances of an image forming apparatus. SOLUTION: The image forming apparatus includes: a toner supply device 26 which performs toner supply so that the toner concentration may be a predetermined value based on the detected result by a sensor 24 detecting the toner concentration in a developing device developing an electrostatic latent image based on an image signal with toner; a storage part 111 which counts the time for toner supply actually performed by the device 26 and accumulates the counted result as a cumulative actual toner supply time; a storage part 112 which calculates estimated necessary toner supply time based on the image signal and accumulates the calculated result as cumulative estimated toner supply time; and a decision part 173 which decides whether to perform the image quality adjusting processing based on a difference between the cumulative actual toner supply time and the cumulative estimated toner supply time in predetermined timing. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:通过由电感检测系统提供调色剂来将调色剂浓度保持在预定值,并且通过根据情况进行定时以执行图像质量调整处理变量来降低图像质量调整处理的性能 图像形成装置。 解决方案:图像形成装置包括:调色剂供应装置26,其执行调色剂供给,使得调色剂浓度可以基于检测到显影装置中的调色剂浓度的传感器24的检测结果而为预定值 基于具有调色剂的图像信号的潜像; 计数由装置26实际进行的调色剂供给时间的积存部件111,并将计数结果积累为累计实际调色剂供给时间; 存储部分112,其基于图像信号计算估计的必要调色剂供给时间,并将计算结果累积为累积估计调色剂供应时间; 以及决定部173,其基于在预定定时中的累积实际调色剂供应时间和累积估计调色剂供给时间之间的差来决定是否执行图像质量调整处理。 版权所有(C)2010,JPO&INPIT
    • 2. 发明专利
    • Image forming apparatus
    • 图像形成装置
    • JP2009210786A
    • 2009-09-17
    • JP2008053303
    • 2008-03-04
    • Sharp Corpシャープ株式会社
    • MORIKUNI SHUICHITOMITA SHOJI
    • G03G15/00G03G15/06G03G15/08G03G21/00
    • PROBLEM TO BE SOLVED: To provide an image forming apparatus using two-component developer, capable of regularly forming an image of a predetermined level or more in accordance with the environment and passage of time of a developing device constituting the image forming apparatus. SOLUTION: The apparatus comprises: a first print rate storage part which stores an average document print rate of a print job having a predetermined print number; a conversion table which stores an area corresponding to the first print rate storage part in association with a correction quantity of development bias corresponding to the area; and a development bias correction means which corrects the development bias using the conversion table when an area corresponding to the average document print rate in the predetermined print number is differed from a reference area, and further recorrects the development bias using the conversion table when an area corresponding to the average document print rate including the current job is changed from the area corresponding to the first print rate storage part. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种使用双组分显影剂的图像形成装置,其能够根据构成图像形成装置的显影装置的环境和时间的规律形成规定级别以上的图像 。 解决方案:该设备包括:第一打印速率存储部分,其存储具有预定打印编号的打印作业的平均文档打印速率; 转换表,其与对应于该区域的显影偏差的校正量相关联地存储对应于第一打印速率存储部分的区域; 以及显影偏差校正装置,当与预定打印数量的平均文档打印速率相对应的区域与参考区域不同时,使用转换表校正显影偏压,并且当区域 对应于包括当前作业的平均文件打印速率的对应于与第一打印速率存储部分相对应的区域。 版权所有(C)2009,JPO&INPIT
    • 3. 发明专利
    • Developing device and image forming apparatus
    • 开发设备和图像形成装置
    • JP2009086290A
    • 2009-04-23
    • JP2007256122
    • 2007-09-28
    • Sharp Corpシャープ株式会社
    • OSADA TSUTOMUMORIKUNI SHUICHITOMITA SHOJI
    • G03G15/08
    • PROBLEM TO BE SOLVED: To provide a developing device, enhancing printing speed and achieving a smaller device size, in which the developer carrying quantity from an agitation supply member to a developing roller is never reduced even when the developer interface in a developing tank is reduced, and to provide an image forming apparatus with the developing device. SOLUTION: An accumulation auxiliary member 10 which is a plate-like member is disposed so that its vertical tip is located below an arrangement position of a pumping magnetic pole N3 of a developing roller 3. The accumulation auxiliary member 10 preferably has a shape having a back plate part 15 and side wall parts 16 vertical to the back plate part 15 formed at both longitudinal ends of the back plate part 15, and is provided so that the back plate part 15 comes into contact with the vertical lower surface of a carrying plate 9 and the extending direction thereof is parallel to the axial direction of the developing roller 3. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供一种显影装置,提高打印速度并实现更小的装置尺寸,其中即使显影剂界面在显影剂中,显影剂承载量从搅动供给构件到显影辊也不会降低 罐减少,并且提供具有显影装置的图像形成装置。 解决方案:作为板状构件的堆积辅助构件10被设置成使得其垂直末端位于显影辊3的泵送磁极N3的配置位置的下方。累积辅助构件10优选地具有 具有背板部15和形成在背板部15的两纵向端部的背板部15垂直的侧壁部16,并且设置成使背板部15与垂直的下侧面 承载板9及其延伸方向与显影辊3的轴向平行。版权所有(C)2009,JPO&INPIT
    • 4. 发明专利
    • Cleaning device and cleaning method of discharge roller
    • 排放辊清洁装置和清洗方法
    • JP2008222401A
    • 2008-09-25
    • JP2007065786
    • 2007-03-14
    • Sharp Corpシャープ株式会社
    • MORIKUNI SHUICHI
    • B65H5/00G03G15/20G03G21/10
    • PROBLEM TO BE SOLVED: To provide a cleaning device and a cleaning method of a discharge roller capable of accurately cleaning the discharge roller.
      SOLUTION: This cleaning device 1 of the discharge roller comprises a cleaning pad 2, a support member 3 of the cleaning pad 2, a temperature sensor 4 and a control means (unillustrated), and cleans the surface of a discharge roller 6a between a pair of discharge rollers 6 by making the cleaning pad 2 contact with the discharge rollers. The control means controls so that the cleaning pad 2 contacts with the discharge roller 6a when a surface temperature of the discharge roller 6a outputted from the temperature sensor 4 exceeds a predetermined boundary temperature.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够精确地清洁排出辊的排出辊的清洁装置和清洁方法。 解决方案:排出辊的清洁装置1包括清洁垫2,清洁垫2的支撑构件3,温度传感器4和控制装置(未示出),并且清洁排出辊6a的表面 通过使清洁垫2与排出辊接触而在一对排出辊6之间。 当从温度传感器4输出的排出辊6a的表面温度超过预定的边界温度时,控制装置进行控制,使得清洁垫2与排出辊6a接触。 版权所有(C)2008,JPO&INPIT
    • 5. 发明专利
    • Image forming apparatus
    • 图像形成装置
    • JP2008064901A
    • 2008-03-21
    • JP2006240842
    • 2006-09-05
    • Sharp Corpシャープ株式会社
    • NAKAMURA SHOJIKONO HIROSHIOTSUKI MASAAKIYOSHIOKA TORUMORIKUNI SHUICHI
    • G03G21/20G03G15/08G03G21/14
    • PROBLEM TO BE SOLVED: To prevent deterioration of fluidity and supply performance of toner stored in a toner supply means due to increase of an internal temperature of an image forming apparatus and toner clogging due to blocking in the electrophotographic type image forming apparatus. SOLUTION: In the image forming apparatus 1 including an original reading means 2, an image forming means 3, a paper feed means 4, a toner supply means 5, a temperature detection means 7, a paper sheet discharge means 8, and a control means not shown, a temperature in the neighborhood of the toner supply means 5 is detected by the temperature detection means 7, provided is a cooling means 6 for cooling the toner supply means 5 by a liquid-like medium, and cooling of the toner supply means 5 is controlled by the cooling means 6 according to the detection results of the temperature detection means 7. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了防止由于图像形成装置的内部温度升高而导致的调色剂供应装置中存储的调色剂的流动性和供给性能的劣化以及由于电子照相图像形成装置中的阻塞引起的调色剂堵塞。 解决方案:在包括原稿读取装置2,图像形成装置3,送纸装置4,调色剂供给装置5,温度检测装置7,纸张排出装置8和图像形成装置1的图像形成装置1中, 未示出的控制装置,由温度检测装置7检测调色剂供应装置5附近的温度,设置有用于通过液体介质冷却调色剂供给装置5的冷却装置6, 调色剂供给装置5根据温度检测装置7的检测结果由冷却装置6控制。版权所有:(C)2008,JPO&INPIT
    • 6. 发明专利
    • Image forming device
    • 图像形成装置
    • JP2007183439A
    • 2007-07-19
    • JP2006001939
    • 2006-01-07
    • Sharp Corpシャープ株式会社
    • MORIKUNI SHUICHITOMITA SHOJIYOSHIOKA TORUFUJITA SHOICHI
    • G03G15/02G03G15/00G03G21/00
    • PROBLEM TO BE SOLVED: To provide an image forming device which can keep the static charged voltage constant on the surface of a photoreceptor drum irrespective of its operating conditions (printing sheet number). SOLUTION: The controller 12 obtains the signals sensed by the infrared sensor 13 based on the reflected light from the mark 14, counts the integrated revolutions (drum run distance) of the photoreceptor drum 1 by outputting the obtained sense signals to the counter 15 and records them in a memory 16. It accesses the grid voltage correction information showing the corrected amount of the grid voltage depending on the integrated revolutions and corrects the voltage of the grid 7 by outputting the control signals to the dc voltage section 8 to change the dc voltage generated there. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种能够保持静电荷电压在感光鼓的表面上恒定的图像形成装置,而与其操作条件(打印纸张号)无关。 解决方案:控制器12基于来自标记14的反射光获得由红外传感器13感测的信号,通过将获得的感测信号输出到计数器来计数感光鼓1的积分转数(鼓距离) 并将它们记录在存储器16中。它根据积分转数访问示出校正的电网电压量的电网电压校正信息,并通过将控制信号输出到直流电压部分8来改变电网7的电压,以改变 在那里产生的直流电压。 版权所有(C)2007,JPO&INPIT
    • 7. 发明专利
    • Image forming apparatus and image forming method
    • 图像形成装置和图像形成方法
    • JP2010164748A
    • 2010-07-29
    • JP2009006517
    • 2009-01-15
    • Sharp Corpシャープ株式会社
    • MORIKUNI SHUICHI
    • G03G15/00G03G15/06G03G15/08G03G21/00
    • PROBLEM TO BE SOLVED: To provide an image forming apparatus and an image forming method which can always obtain a developed image that is a predetermined level or more corresponding to the environment and lapse of time of a developing unit using a two component developer. SOLUTION: The image forming apparatus 100 for controlling the developed image obtained by an image forming section 103 is provided with: a developing bias calculating means 231 that obtains an output value of a developing bias application unit 244 and an approximation formula for a measured value of an image density measuring means 216 and calculates an output value of a developing bias application unit 244 in which a measured value by an image density measuring means 216 corresponds to 0 by the approximation formula; an effective developing potential calculating means 232 for calculating an effective developing potential based on the calculated result of the developing bias calculating means 231; and a control means 95 for comparing an effective developing potential that is obtained by the effective developing potential calculating means 232 and an effective developing potential range that is made a reference value set before hand and then controlling a process forming condition for the image forming section 103 according to the compared result. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种图像形成装置和图像形成方法,其可以总是获得对应于使用双组分显影剂的显影单元的环境和时间的预定水平或更高的显影图像 。 解决方案:用于控制由图像形成部分103获得的显影图像的图像形成装置100设置有:显影偏压计算装置231,其获得显影偏压施加单元244的输出值和用于 图像浓度测量装置216的测量值,并计算显影偏压施加单元244的输出值,其中图像浓度测量装置216的测量值通过近似公式对应于0; 基于显影偏差计算装置231的计算结果计算有效显影电位的有效显影电位计算装置232; 以及控制装置95,用于将由有效显影电位计算装置232获得的有效显影电位与作为手前设定的基准值的有效显影电位范围进行比较,然后控制图像形成部103的处理形成条件 根据比较结果。 版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • Cleaning device and cleaning method for discharge roller
    • 清洁滚筒清洗装置和清洗方法
    • JP2008225255A
    • 2008-09-25
    • JP2007065787
    • 2007-03-14
    • Sharp Corpシャープ株式会社
    • MORIKUNI SHUICHI
    • G03G21/10
    • PROBLEM TO BE SOLVED: To provide a cleaning device that can precisely clean the discharge roller by applying a voltage directly to the discharge roller, and a cleaning method for the discharge roller.
      SOLUTION: The cleaning device 1 for the discharge roller includes a scraper 2, a container 3, a power source 4, and a voltage control means (not shown), and the cleaning device 1 cleans the surface of an upper discharge roller 6a. The power source 4 has its minus side connected to a discharge roller 6b and its plus side grounded. The discharge roller 6a is grounded. When the voltage is applied while a recording medium 7 does not pass through a press-contact part, paper powder and toner sticking on the lower discharge roller 6b receive electrostatic repulsive force according to its current path, so they are moved to the upper discharge roller 6 a. Paper powder and toner sticking on the upper discharge roller 6a also receive electrostatic repulsive force, so efficiency of cleaning by the scraper 2 is improved.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够通过向排出辊直接施加电压来精确地清洁排出辊的清洁装置和用于排出辊的清洁方法。 解决方案:用于排出辊的清洁装置1包括刮刀2,容器3,电源4和电压控制装置(未示出),清洁装置1清洁上排料辊的表面 6A。 电源4的负侧连接到排出辊6b,其正面接地。 排出辊6a接地。 当记录介质7不通过压接部分施加电压时,粘着在下排出辊6b上的纸粉和调色剂根据其电流路径接收静电排斥力,因此它们移动到上排纸辊 6 a。 粘附在上排纸辊6a上的纸粉和调色剂也受到静电排斥力,从而提高了刮刀2的清洁效率。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Developing device and developing method
    • 开发设备和开发方法
    • JP2008197179A
    • 2008-08-28
    • JP2007029790
    • 2007-02-08
    • Sharp Corpシャープ株式会社
    • MORIKUNI SHUICHITOMITA SHOJIYOSHIOKA TORUOSADA TSUTOMUHIROTA TAKASHI
    • G03G15/08G03G21/00G03G21/14
    • PROBLEM TO BE SOLVED: To provide a developing device and a developing method, wherein more accurate preliminary stirring time can be decided. SOLUTION: A humidity sensor 5 detects humidity in a developing tank, and a toner replenishment control part 44 calculates replenishing time when the developing device 1 is replenished with developer for replenishment from a replenishing device 2 based on input image data. A cumulative dot count time arithmetic calculation part 46 calculates developing time required for developing an electrostatic latent image based on input image data, and a part 47 measuring the time elapsed from the previous stirring time. A control part 40 decides the preliminary stirring time based on the detected humidity, the calculated replenishing time, the calculated developing time and the measured time. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种可以确定更准确的初步搅拌时间的显影装置和显影方法。 湿度传感器5检测显影槽中的湿度,并且调色剂补充控制部分44基于输入的图像数据计算补充显影装置1从补充装置2补充显影剂的补充时间。 累积点计数时间运算运算部46计算基于输入图像数据显影静电潜像所需的显影时间,以及测量从前一搅拌时间起经过的时间的部分47。 控制部40基于检测到的湿度,计算出的补充时间,计算出的显影时间和测定时间来决定初步搅拌时间。 版权所有(C)2008,JPO&INPIT
    • 10. 发明专利
    • Image forming apparatus
    • 图像形成装置
    • JP2008102293A
    • 2008-05-01
    • JP2006284362
    • 2006-10-18
    • Sharp Corpシャープ株式会社
    • TOMITA SHOJIYOSHIOKA TORUMORIKUNI SHUICHIOSADA TSUTOMUHIROTA TAKASHI
    • G03G15/00G03G21/00
    • G03G15/0849G03G15/5041G03G2215/00033
    • PROBLEM TO BE SOLVED: To form a toner image having toner density substantially approximate to a designed value, without causing stoppage of image forming operation, even when a toner density detection means breaks down in an image forming apparatus, having a mechanism for automatically adjusting the toner density of the toner image based on toner patch. SOLUTION: The image forming apparatus 1 includes a document feed means 30, a document reading means 31, an image forming means 32, a paper ejection means 33, a paper supply means 34, a patch density detection means (not shown), and a toner density adjusting means for adjusting the density of the toner image according to the result of detection by the patch density detection means. The image forming apparatus 1 is provided with a patch forming means for forming the toner patch, an operation detection means for detecting the operation state of the patch density detection means, and a patch printing means for obtaining the patch image by printing the toner patch, according to the result of the detection that the patch density detection means is not operating normally by the operation detection means, and adjusts the toner density based on the patch image. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了形成具有基本上接近设计值的调色剂浓度的调色剂图像,而不会导致图像形成操作的停止,即使当调色剂浓度检测装置在图像形成装置中发生故障时,具有用于 根据墨粉贴片自动调节墨粉图像的墨粉密度。 图像形成装置1包括原稿输入装置30,原稿读取装置31,图像形成装置32,纸张排出装置33,供纸装置34,贴片浓度检测装置(未示出) 以及调色剂浓度调节装置,用于根据贴片浓度检测装置的检测结果来调节调色剂图像的浓度。 图像形成装置1设置有用于形成调色剂贴片的贴片形成装置,用于检测贴片浓度检测装置的操作状态的操作检测装置和用于通过印刷调色剂贴片获得贴片图像的贴片印刷装置, 根据检测结果,斑块浓度检测装置不能由操作检测装置正常地操作,并且基于斑块图像调节调色剂浓度。 版权所有(C)2008,JPO&INPIT