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1. 发明公开

EP1945455A1 IMAGE PROCESSING METHOD, COMPUTER-READABLE PROGRAM, IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS AND IMAGE FORMING SYSTEM 审中-公开
标题翻译：图像处理，计算机可读的程序，图像处理装置，成像设备和成像系统
公开(公告)号：EP1945455A1
公开(公告)日：2008-07-23
申请号：EP06822978.0
申请日：2006-10-30
申请人： Ricoh Company, Ltd.
发明人： KIMURA, Takashi , YOSHIDA, Masakazu , SASAKI, Shino
IPC分类号： B41J2/01 , H04N1/23
CPC分类号： B41J2/04596 , B41J2/04508 , B41J2/04553 , B41J2/04578 , B41J2/0458 , B41J2/04581 , B41J2/04588 , B41J2/04593 , G06K15/02 , G06K15/1842
摘要： An image processing method generates image data for use by an image forming apparatus which forms an image on a recording medium by ink dots formed by ejected ink drops. The image processing method includes the steps of judging an image portion and a background portion of the image, and adding image dots to the background portion adjacent to the image portion to fatten the image portion by a fattening process, depending on at least one of a character size of the image portion, a character type of the image portion, a resolution of the image portion, and a color of the background portion.

2. 发明公开

EP3235647A1 LIQUID EJECTION APPARATUS, INKJET SYSTEM, AND FLUSHING METHOD 审中-公开
标题翻译：液体喷射装置，喷墨系统和冲洗方法
公开(公告)号：EP3235647A1
公开(公告)日：2017-10-25
申请号：EP17151185.0
申请日：2017-01-12
申请人： Ricoh Company, Ltd.
发明人： KATOH, Ryuuta , SASAKI, Shino , NIINO, Yukihito
IPC分类号： B41J2/165
CPC分类号： B41J2/1652 , B41J2/16526 , B41J2/16585 , B41J2002/16529 , B41J2002/16573
摘要： A liquid ejection apparatus (100) includes: a plurality of nozzles (40N) configured to eject liquid onto a conveyed object (Md) conveyed by a conveyance unit (10, 60), based on input image data; and a control unit (70) configured to control a number of droplets in first flushing for ejecting the liquid outside a region corresponding to the image data and a number of droplets in second flushing for ejecting the liquid inside the region corresponding to the image data in addition to ejection based on the image data. The control unit (70) is configured to control the number of droplets in the first flushing and the number of droplets in the second flushing based on at least a length of the image data in a direction (Xm) in which the conveyed object (Md) is conveyed.
摘要翻译：液体喷射装置（100）包括：多个喷嘴（40N），被构造为基于输入图像数据将液体喷射到由输送单元（10,60）输送的被输送物体（Md）上; 和控制单元（70），其被配置为控制第一次冲洗中的液滴的数量，以将液体喷射到与图像数据相对应的区域之外，并且控制第二次冲洗中的液滴的数量，以将液体喷射到与图像数据除了基于图像数据的喷射。控制单元（70）被配置为基于图像数据的至少长度方向（Xm）来控制第一次冲洗中的液滴数目和第二次冲洗中的液滴数目，其中输送物体（Md））被传送。

3. 发明公开

EP1957281A1 IMAGING FORMING APPARATUS 有权
标题翻译：成像成形设备
公开(公告)号：EP1957281A1
公开(公告)日：2008-08-20
申请号：EP06834162.7
申请日：2006-11-30
申请人： Ricoh Company, Ltd.
发明人： SASAKI, Shino
IPC分类号： B41J2/045 , B41J2/055 , B41J2/205
CPC分类号： B41J2/04598 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/04596
摘要： An image forming apparatus is disclosed that includes a recording head including a nozzle from which liquid droplets are ejected, a pressure chamber communicating with the nozzle and containing liquid, and a pressure generation part changing the volume of the pressure chamber; and a drive signal generation part generating a drive signal including multiple drive pulses and causing the pressure generation part to operate so that the liquid droplets are ejected. The drive signal generated by the drive signal generation part includes, within a single print cycle, a resonant drive pulse causing a first one of the liquid droplets to be ejected using the natural vibration period of the pressure chamber, a non- resonant drive pulse causing a second one of the liquid droplets to be ejected without using the natural vibration period of the pressure chamber, and a slight drive pulse prevented from causing the ink droplets to be ejected.
摘要翻译：公开了一种图像形成装置，其包括记录头和压力产生部，所述记录头包括喷射液滴的喷嘴，与所述喷嘴连通并容纳液体的压力室，所述压力产生部改变所述压力室的容积; 以及驱动信号生成部分，其生成包括多个驱动脉冲的驱动信号并且使压力生成部分操作以使得液滴被喷射。由驱动信号生成部生成的驱动信号在一个印刷周期内包含：使用压力室的固有振动周期使液滴中的第一个液滴喷出的共振驱动脉冲; 在不使用压力室的固有振动周期的情况下喷射液滴中的第二个，并且防止引起墨滴喷射的轻微驱动脉冲。

4. 发明授权

EP1957281B1 IMAGING FORMING APPARATUS 有权
标题翻译：成像成形设备
公开(公告)号：EP1957281B1
公开(公告)日：2016-01-27
申请号：EP06834162.7
申请日：2006-11-30
申请人： Ricoh Company, Ltd.
发明人： SASAKI, Shino
IPC分类号： B41J2/045 , B41J2/055 , B41J2/205
CPC分类号： B41J2/04598 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/04596

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