公开(公告)号：US07292374B2

公开(公告)日：2007-11-06

申请号：US10812964

申请日：2004-03-31

申请人： Eiichi Sasaki

发明人： Eiichi Sasaki

IPC分类号： H04N1/407

CPC分类号： H04N1/40087 ,  H04N1/4055 ,  H04N1/407

摘要： A novel image forming apparatus which makes gray-scale by performing at least one of operations including a manipulation of a plurality of dots arranged in a form of matrix, a single-dot-based density adjustment, or a single-dot-based size adjustment, includes a dot status detector and a density adjuster. The dot status detector detects an occurrence in which a dot exists at a focus dot position and no dot exists at positions immediately adjacent to the focus dot position in the main scanning direction. The density adjuster adjusts a writing level of the dot at the focus dot position so as to make the gray-scale smooth when the dot status detector detects the occurrence.

摘要翻译： 一种新颖的图像形成装置，其通过执行包括以矩阵形式排列的多个点的操作，单点密度调整或基于单点的尺寸调整中的至少一个来进行灰度级 包括点状态检测器和密度调节器。 点状态检测器检测在聚焦点位置处存在点的存在，并且在主扫描方向上与焦点位置紧邻的位置处不存在点。 浓度调节器调整聚焦点位置处的点的写入电平，以便当点状态检测器检测到发生时使灰度平滑。

公开(公告)号：US06804031B1

公开(公告)日：2004-10-12

申请号：US09459638

申请日：1999-12-13

申请人： Eiichi Sasaki

发明人： Eiichi Sasaki

IPC分类号： H04N121

CPC分类号： H04N1/40087 ,  H04N1/4055 ,  H04N1/407

摘要： A novel image forming apparatus which makes gray-scale by performing at least one of operations including a manipulation of a plurality of dots arranged in a form of matrix, a single-dot-based density adjustment, or a single-dot-based size adjustment, includes a dot status detector and a density adjuster. The dot status detector detects an occurrence in which a dot exists at a focus dot position and no dot exists at positions immediately adjacent to the focus dot position in the main scaning direction. The density adjuster adjusts a writing level of the dot at the focus dot position so as to make the gray-scale smooth when the dot status detector detects the occurrence.

摘要翻译： 一种新颖的图像形成装置，其通过执行包括以矩阵形式排列的多个点的操作，单点密度调整或基于单点的尺寸调整中的至少一个来进行灰度级 包括点状态检测器和密度调节器。 点状态检测器检测在聚焦点位置存在点的存在，并且在主扫描方向上与焦点位置紧邻的位置处不存在点。 浓度调节器调整聚焦点位置处的点的写入电平，以便当点状态检测器检测到发生时使灰度平滑。

公开(公告)号：US5621221A

公开(公告)日：1997-04-15

申请号：US361950

申请日：1994-12-22

申请人： Tadashi Shinohara ,  Kouichi Noguchi ,  Eiichi Sasaki ,  Kouichi Irie

发明人： Tadashi Shinohara ,  Kouichi Noguchi ,  Eiichi Sasaki ,  Kouichi Irie

IPC分类号： G03G15/01 ,  G03G15/08 ,  G03G21/00

CPC分类号： G03G15/0126 ,  G03G15/0856 ,  G03G15/0862 ,  G03G2215/0177 ,  G03G2215/0894

摘要： An apparatus and method for detecting an empty condition of toner cartridges containing toner for copiers, fax machines, printers and the like is disclosed. The cartridges may be mounted to a rotary developing device. According to one embodiment, when a toner cartridge has been rotatably positioned to a developing position, an empty condition is detected by emitting light into the toner cartridge and detecting the light coming out of its bottom. To accomplish this detection, a light source and a light sensor are fixedly located near a bottom corner of the toner cartridge at the developing position. Light is emitted into the toner cartridge at a predetermined oblique angle with respect to a side wall of the toner cartridge. Light exits out from the bottom wall if a predetermined amount of toner does not exist in the toner cartridge. Due to the oblique angle, the distance between the light source and the light sensor is substantially reduced and provides an accurate measurement. This reduced distance also results in a smaller end detection system.

摘要翻译： 公开了一种用于检测含有复印机，传真机，打印机等的调色剂的调色剂盒的空状态的装置和方法。 盒可以安装到旋转显影装置。 根据一个实施例，当调色剂盒已经可旋转地定位到显影位置时，通过将光发射到调色剂盒中并检测从其底部出来的光来检测空的状态。 为了实现该检测，光源和光传感器固定地位于显影位置处的调色剂盒的底角附近。 光线相对于调色剂盒的侧壁以预定的倾斜角度发射到调色剂盒中。 如果调色剂盒中不存在预定量的调色剂，则光从底壁离开。 由于倾斜角度，光源和光传感器之间的距离显着减小并提供准确的测量。 这种减小的距离也导致较小的端部检测系统。

公开(公告)号：US5115252A

公开(公告)日：1992-05-19

申请号：US475898

申请日：1990-01-30

申请人： Eiichi Sasaki

发明人： Eiichi Sasaki

IPC分类号： B41J2/365 ,  B41J2/355 ,  B41J2/36 ,  H04N1/032 ,  H04N1/23

CPC分类号： B41J2/355

摘要： A thermal head drive apparatus drives a plurality of heating resistors arranged in one line in a thermal head using image data to print picture elements every one line. The drive apparatus comprises a correcting device for correcting an influence by accumulated heat of the heating resistors using data for correction as to the image data; a calculator for making data for correcting the influence by the accumulated heat of the heating resistors from the image data and the data for correction; a delay device for delaying data from the calculator by one line; and a calculating section for calculating and providing the data for correction to the correcting device and the calculator based on data from the delay device and data before and after the data from the delay device. The apparatus may comprise a first delay device for delaying the image data by a predetermined number of lines; a first calculator for making data for correction by data from the first delay device and delayed data for correction; a first correcting device for correcting an influence amount by the accumulated heat of the heating resistors as to the image data by the data for correction from the first calculator; and a second delay device for delaying the data for correction from the first calculator by one line and providing these delayed data to the first calculator as the delayed data for correction.

摘要翻译： 热敏头驱动装置使用图像数据驱动在热头中一行布置的多个加热电阻器，以每一行打印图像元素。 驱动装置包括校正装置，用于使用用于校正图像数据的数据来校正加热电阻器的累积热量的影响; 计算器，用于根据图像数据和用于校正的数据进行校正来自加热电阻器的累积热量的影响的数据; 延迟装置，用于将来自计算器的数据延迟一行; 以及计算部分，用于基于来自延迟装置的数据和来自延迟装置的数据之前和之后的数据，向校正装置和计算器计算和提供用于校正的数据。 该装置可以包括用于将图像数据延迟预定数量的行的第一延迟装置; 第一计算器，用于通过来自第一延迟装置的数据进行校正的数据和用于校正的延迟数据; 第一校正装置，用于通过来自第一计算器的校正数据来校正加热电阻器对于图像数据的累积热量的影响量; 以及第二延迟装置，用于将来自第一计算器的用于校正的数据延迟一行，并将这些延迟数据提供给第一计算器作为用于校正的延迟数据。

公开(公告)号：US5012258A

公开(公告)日：1991-04-30

申请号：US284542

申请日：1988-12-15

申请人： Eiichi Sasaki

发明人： Eiichi Sasaki

IPC分类号： B41J2/36 ,  B41J2/355 ,  B41J2/38

CPC分类号： B41J2/355 ,  B41J2/38

摘要： A device for driving a thermal print head having a plurality of heat-producing elements arranged in the form of a single array for use in a thermosensitive or thermal transfer recording apparatus is provided. The drive device includes a void data counter for counting void data in the data of an image signal for each of the plurality of heat-producing elements and an adjusting unit for adjusting the level of a preheat energy to be supplied to each of the plurality of heat-producing elements in accordance with the void data count for the corresponding heat-producing element.

摘要翻译： 提供一种用于驱动热敏打印头的装置，其具有以单个阵列形式布置的用于热敏或热转印记录装置的多个发热元件。 驱动装置包括用于对多个发热元件中的每一个的图像信号的数据中的空白数据进行计数的空白数据计数器和用于调节要供给到多个发热元件中的每一个的预热能量的水平的调节单元 根据相应的发热元件的空白数据计数的发热元件。

公开(公告)号：US4983994A

公开(公告)日：1991-01-08

申请号：US412797

申请日：1989-09-26

申请人： Takashi Mori ,  Eiichi Sasaki

发明人： Takashi Mori ,  Eiichi Sasaki

IPC分类号： B41J2/36

CPC分类号： B41J2/36

摘要： A printing device suitable for printing on a record medium for use in an overhead projector (OHP) prints at a density controlled as a function of the type of an OHP (transmission type of reflection type) in which the record medium will be used, and/or as a function of the distance from the OHP to the screen. The device can use a transfer printing type print head, in which case the density control can be achieved by means of amplitude or pulse width modulation of the electrical signal energizing the print head or by means of controlling the number or short energization pulses to be applied to the print head.

摘要翻译： 适用于在用于高架投影仪（OHP）的记录介质上打印的打印装置以根据将使用记录介质的OHP（透射型反射型）的类型来控制的浓度进行打印，以及 /或作为从OHP到屏幕的距离的函数。 该装置可以使用转印印刷型打印头，在这种情况下，密度控制可以通过激励打印头的电信号的幅度或脉冲宽度调制来实现，或通过控制要施加的数量或短激励脉冲 到打印头。

公开(公告)号：US4973984A

公开(公告)日：1990-11-27

申请号：US333955

申请日：1989-04-06

申请人： Eiichi Sasaki

发明人： Eiichi Sasaki

IPC分类号： B41J2/355 ,  B41J2/365

CPC分类号： B41J2/355 ,  B41J2/365

摘要： A thermal-head driving apparatus drives a thermal head having a plurality of heating resistors separated in a plurality of groups and disposed in one line, each of the heating resistors capable of being energized by heating pulses the number of which is controlled in accordance with the required density of the corresponding picture element, the heating resistors of the each group being adapted to be sequentially driven. The apparatus comprises a first unit for generating signals representative of time intervals of the heating pulses, which time intervals is determined to keep a temperature of the heating resistors above a predetermined temperature during operation, and a second unit for controlling a time intervals of heating pulses applied to the heating resistors in accordance with the signals from the first unit.

摘要翻译： 热头驱动装置驱动具有多个加热电阻器的多个加热电阻器，该多个加热电阻器以多个组分开并且布置在一条线中，每个加热电阻器能够通过加热脉冲通电，该加热脉冲的数量根据 相应的像素的所需密度，每组的加热电阻器被适当地顺序驱动。 该装置包括用于产生表示加热脉冲的时间间隔的信号的第一单元，确定该时间间隔以将加热电阻器的温度保持在运行中的预定温度以上，以及用于控制加热脉冲的时间间隔的第二单元 根据来自第一单元的信号施加到加热电阻器。

公开(公告)号：US4779102A

公开(公告)日：1988-10-18

申请号：US937014

申请日：1986-12-02

申请人： Eiichi Sasaki

发明人： Eiichi Sasaki

IPC分类号： B41J2/355 ,  G01D15/10 ,  B41J3/20

CPC分类号： B41J2/3551 ,  B41J2/3555

摘要： In a thermal or a thermal transfer printer using a thermal head which has heating elements arranged in one line in a main scanning direction, a thermal head drive system for printing out dots by multi-step modulation is disclosed. The heating elements are divided into an odd and an even dot groups and driven group by group on a time division basis. One line of data are recorded such that the odd dots and the even dots which neighbor each other in the main scanning direction are offset in a subscanning direction. When the elements which are next to a particular one of the elements are of the maximum drive level, they are driven at the same time. Further, those heating elements which are of the same level are driven at a time.

摘要翻译： 在使用具有沿主扫描方向排列成一行的加热元件的热​​敏头的热敏式或热转印式打印机中，公开了一种通过多步调制印刷出点的热敏头驱动系统。 加热元件分为奇数和偶数点组，并按时间分组驱动。 记录一行数据，使得在主扫描方向上彼此相邻的奇数点和偶数点在副扫描方向上偏移。 当特定元件旁边的元件是最大驱动电平时，它们被同时驱动。 此外，同一级别的加热元件一次被驱动。

公开(公告)号：US4715478A

公开(公告)日：1987-12-29

申请号：US928327

申请日：1986-11-07

申请人： Ichiro Nakamura ,  Satoshi Kobayashi ,  Eiichi Sasaki

发明人： Ichiro Nakamura ,  Satoshi Kobayashi ,  Eiichi Sasaki

IPC分类号： B66B1/26 ,  B66B1/24

CPC分类号： B66B1/24

摘要： The velocity of a cage during a time interval from the start of deceleration to the stoppage of the cage is controlled by utilizing a velocity characteristic which changes depending upon the load condition or oil temperature of a hydraulic elevator, that is, a magnitude by which the velocity characteristic during the acceleration of the cage differs from a reference running characteristic. Thus, even when the load state or the oil temperature has changed, the operating period of time of the hydraulic elevator is shortened, so that a comfortable ride, energy saving, cost reduction etc. are attained.

摘要翻译： 在从减速开始到轿厢停止的时间间隔期间，轿厢的速度通过利用根据液压电梯的负载条件或油温而变化的速度特性来控制，即， 轿厢加速时的速度特性与基准行驶特性不同。 因此，即使在负载状态或油温变化的情况下，也能够缩短液压升降机的运转时间，从而能够实现舒适的乘坐，节能，成本降低等。