公开(公告)号：US07806492B2

公开(公告)日：2010-10-05

申请号：US12270683

申请日：2008-11-13

申请人： Tatsuo Furukawa ,  Nobuyuki Hirayama ,  Yoshiyuki Imanaka ,  Teruo Ozaki ,  Takuya Hatsui ,  Takaaki Yamaguchi

发明人： Tatsuo Furukawa ,  Nobuyuki Hirayama ,  Yoshiyuki Imanaka ,  Teruo Ozaki ,  Takuya Hatsui ,  Takaaki Yamaguchi

IPC分类号： B41J29/38

CPC分类号： B41J2/1752 ,  B41J2/04541 ,  B41J2/0458 ,  B41J2/1753 ,  B41J29/38

摘要： A printhead in which the voltage fluctuation absorption range of a MOS transistor serving as a constant current source is narrowed according to constant current driving. The printhead includes a controller which controls voltage fluctuations to adjust a current supplied to a plurality of printing elements. The printhead also includes a DC/DC converter which outputs a voltage of a voltage value to be applied to a plurality of printing elements from outside a printing element substrate.

摘要翻译： 根据恒定电流驱动，用作恒定电流源的MOS晶体管的电压波动吸收范围变窄的打印头。 打印头包括控制电压波动以调节提供给多个打印元件的电流的控制器。 该打印头还包括一个DC / DC转换器，其从打印元件衬底的外部输出要施加到多个打印元件的电压值的电压。

公开(公告)号：US07530653B2

公开(公告)日：2009-05-12

申请号：US11134418

申请日：2005-05-23

申请人： Nobuyuki Hirayama

发明人： Nobuyuki Hirayama

IPC分类号： B41J29/38

CPC分类号： B41J2/04541 ,  B41J2/04543 ,  B41J2/0455 ,  B41J2/04555 ,  B41J2/0457 ,  B41J2/0458

摘要： A recording head having a plurality of recording elements comprises a plurality of switching elements, each provided in correspondence to each of the plurality of recording elements, constant current sources, each provided in correspondence to each of groups in which the plurality of recording elements are divided, for flowing a constant current into a plurality of recording elements of each group, and a constant current control circuit for controlling the constant current supplied from the constant current sources, and the recording elements are driven by the constant current.

摘要翻译： 具有多个记录元件的记录头包括多个开关元件，每个开关元件分别设置成对应于多个记录元件中的每一个，恒定电流源，每个记录元件分别对应于多个记录元件被分割的组 用于将恒定电流流入每组的多个记录元件，以及恒定电流控制电路，用于控制从恒定电流源提供的恒定电流，并且记录元件由恒定电流驱动。

公开(公告)号：US07448709B2

公开(公告)日：2008-11-11

申请号：US11177303

申请日：2005-07-11

申请人： Yoshinori Nakajima ,  Jiro Moriyama ,  Takayuki Murata ,  Nobuyuki Hirayama

发明人： Yoshinori Nakajima ,  Jiro Moriyama ,  Takayuki Murata ,  Nobuyuki Hirayama

IPC分类号： B41J29/38

CPC分类号： B41J2/04521 ,  B41J2/04525 ,  B41J2/04541 ,  B41J2/04543 ,  B41J2/04573 ,  B41J2/0458

摘要： This invention provides a printing head which can prevent an increase in the number of block enable signal lines, and can prevent changes in printing ink density caused by interference due to the relative pressures of nozzles generated in ink discharge, and an image printing apparatus using the printing head. For this purpose, an increase in the number of input signal lines along with an increase in the number of blocks is prevented using a block clock signal or the like instead of a block enable signal as an input signal to the printing head. Three ring counters generate signals having different nozzle driving orders. These signals are selectively used by a ring counter selection signal. Ink is not always discharged from the nozzles in the same output order. This can prevent changes in ink density caused by pressure interference.

摘要翻译： 本发明提供一种打印头，其能够防止块启用信号线的数量的增加，并且可以防止由于在喷墨时产生的喷嘴的相对压力而引起的干扰引起的打印油墨浓度的变化，以及使用 打印头。 为此，使用块时钟信号等代替块使能信号作为打印头的输入信号来防止输入信号线的数量的增加以及块数量的增加。 三个环形计数器产生具有不同喷嘴驱动顺序的信号。 这些信号由环计数器选择信号选择使用。 墨水并不总是以相同的输出顺序从喷嘴排出。 这可以防止由压力干扰引起的墨密度变化。

公开(公告)号：US06976748B2

公开(公告)日：2005-12-20

申请号：US10419140

申请日：2003-04-21

申请人： Kenji Yabe ,  Mineo Kaneko ,  Ken Tsuchii ,  Nobuyuki Hirayama ,  Masaki Oikawa

发明人： Kenji Yabe ,  Mineo Kaneko ,  Ken Tsuchii ,  Nobuyuki Hirayama ,  Masaki Oikawa

IPC分类号： B41J2/045 ,  B41J2/055 ,  B41J2/15 ,  B41J2/21

CPC分类号： B41J2/15 ,  B41J2/2125 ,  B41J2002/14475

摘要： Since the large amount nozzle arrays are disposed at first columns and the small amount nozzle arrays are disposed at second columns on both sides of the shifting directions along the main scan direction, the deflection of the ink droplet caused by the first air flows is totally reduced.

摘要翻译： 由于大量喷嘴阵列设置在第一列处，并且少量喷嘴阵列沿着主扫描方向设置在沿着移动方向的两侧的第二列处，所以由第一空气流引起的墨滴的偏转完全降低 。

公开(公告)号：US20050140707A1

公开(公告)日：2005-06-30

申请号：US10980192

申请日：2004-11-04

申请人： Yoshiyuki Imanaka ,  Nobuyuki Hirayama ,  Ichiro Saito ,  Muga Mochizuki ,  Takaaki Yamaguchi ,  Masao Kato ,  Toshiyasu Sakai

发明人： Yoshiyuki Imanaka ,  Nobuyuki Hirayama ,  Ichiro Saito ,  Muga Mochizuki ,  Takaaki Yamaguchi ,  Masao Kato ,  Toshiyasu Sakai

IPC分类号： B41J2/05 ,  B41J29/38

CPC分类号： B41J2/04538 ,  B41J2/04541 ,  B41J2/04555 ,  B41J2/04565 ,  B41J2/0457 ,  B41J2/0458

摘要： An object of this invention is to prevent an increase in energy applied to a heating element and prolong the service life of a printhead even when the temperature of the printing element having a negative temperature coefficient rises and the resistance of the heating element decreases upon controlling a switching element for controlling a current flowing through the heating element so as to make energy as constant as possible. For this purpose, a printhead having a plurality of heating elements connected to a common power supply comprises: a switching element which is series-connected to the heating element and controls driving of the heating element at a voltage applied to a control terminal; a constant voltage source using a common power supply as a reference; a wiring resistance generated at a connection wiring line serial-connected to the heating element; and a voltage control circuit which controls to make the potential difference between both ends of the wiring resistance equal to the voltage of the constant voltage source when driving the heating element. Then, a current flowing through the heating element is made constant without any influence of the temperature of the heating element.

摘要翻译： 本发明的目的是防止加热元件的能量增加，并延长打印头的使用寿命，即使当具有负温度系数的打印元件的温度升高并且加热元件的电阻在控制 开关元件，用于控制流过加热元件的电流，使能量尽可能的恒定。 为此，具有连接到公共电源的多个加热元件的打印头包括：开关元件，其串联连接到加热元件，并以施加到控制端子的电压来控制加热元件的驱动; 使用公共电源作为参考的恒定电压源; 在与所述加热元件串联的连接布线处产生的布线电阻; 以及电压控制电路，其控制在驱动所述加热元件时使所述布线电阻的两端之间的电位差等于所述恒定电压源的电压。 然后，流过加热元件的电流恒定，不受加热元件温度的任何影响。

公开(公告)号：US06407620B1

公开(公告)日：2002-06-18

申请号：US09234302

申请日：1999-01-21

申请人： Nobuyuki Hirayama

发明人： Nobuyuki Hirayama

IPC分类号： G05F110

CPC分类号： G05F3/265

摘要： In a current mirror circuit having different output ratios or outputting a plurality of output currents, the present invention provides a current mirror circuit which suppresses the influence of an early effect of a transistor serving as a reference and achieves an effect of base current compensation. In the current mirror circuit utilizing a common base transistor for an output stage, the base current of the common base transistor for the output stage is subtracted from the sum of the base current of a first transistor inputting a reference current and the base current of a second transistor where the base of the first transistor and the base of the second transistor are commonly connected. The resultant current is added to a current output terminal at the same current ratio as an input/output current ratio of the current mirror circuit and output.

摘要翻译： 在具有不同输出比或输出多个输出电流的电流镜电路中，本发明提供一种电流镜电路，其抑制作为基准的晶体管的早期效应的影响，并实现基极电流补偿的效果。 在利用用于输出级的公共基极晶体管的电流镜像电路中，从输入基准电流的第一晶体管的基极电流和基准电流的基准电流之和减去用于输出级的公共基极晶体管的基极电流 第二晶体管，其中第一晶体管的基极和第二晶体管的基极共同连接。 所得到的电流以与电流镜电路的输入/输出电流比相同的电流比加到电流输出端，并输出。

公开(公告)号：US09033442B2

公开(公告)日：2015-05-19

申请号：US13462936

申请日：2012-05-03

申请人： Hideo Kanno ,  Nobuyuki Hirayama

发明人： Hideo Kanno ,  Nobuyuki Hirayama

IPC分类号： B41J29/38 ,  B41J2/045

CPC分类号： B41J2/0458 ,  B41J2/0451 ,  B41J2/04563 ,  B41J2/04596

摘要： A printing apparatus includes a control unit configured to perform control so as to apply a first driving voltage to a heat generation element to discharge ink from an orifice and then apply a second driving voltage to the heat generation element so as not to cause bubbling or discharging of ink. In this case, the control unit performs control to apply the second driving voltage before detection of a feature point on the waveform of a signal representing temperatures in a temperature drop process detected by the temperature detection element after application of the first driving voltage and along with the application of the first driving voltage based on a temperature detected by a temperature detection element.

摘要翻译： 打印装置包括：控制单元，被配置为执行控制以便向发热元件施加第一驱动电压以从孔排出墨，然后向发热元件施加第二驱动电压，以便不引起发泡或放电 的墨水。 在这种情况下，控制单元执行控制，以在检测到特征点之后施加第二驱动电压，该信号表示在施加第一驱动电压之后由温度检测元件检测的温度降低过程中的温度的信号，以及与 基于由温度检测元件检测到的温度来施加第一驱动电压。

公开(公告)号：US08292407B2

公开(公告)日：2012-10-23

申请号：US12916055

申请日：2010-10-29

申请人： Nobuyuki Hirayama ,  Yusuke Imahashi

发明人： Nobuyuki Hirayama ,  Yusuke Imahashi

IPC分类号： B41J2/05

CPC分类号： B41J2/1404 ,  B41J2/14072 ,  B41J2/14145 ,  B41J2002/14403 ,  B41J2002/14467

摘要： In a liquid-discharging-head substrate including a plurality of ink supply ports, if lines are provided on the substrate between adjacent elements, energy generating elements cannot be arranged in high density. A liquid-discharging-head substrate according to the present invention includes an element array in which a plurality of elements configured to generate energy for discharging liquid are arranged, a first common line, a second common line, first individual lines configured to connect the elements and the first common line, and second individual lines configured to connect the elements and the second common line. The element array is provided between the first common line and the second common line, the first individual lines are provided in an area between the element array and the first common line, and the second individual lines are provided in an area between the element array and the second common line.

摘要翻译： 在包括多个供墨口的液体排出头基板中，如果在相邻元件之间的基板上设置线，则能量产生元件不能以高密度排列。 根据本发明的排液头基板包括其中布置有多个被配置为产生用于排出液体的能量的元件的元件阵列，第一公共线，第二公共线，构造成将元件 和第一公共线，以及配置成连接元件和第二公共线的第二单独线。 元件阵列设置在第一公共线和第二公共线之间，第一独立线设置在元件阵列和第一公共线之间的区域中，并且第二单独线设置在元件阵列和第二公共线之间的区域中 第二条共同线。

公开(公告)号：US20090091594A1

公开(公告)日：2009-04-09

申请号：US11913708

申请日：2006-05-11

申请人： Nobuyuki Hirayama ,  Masataka Sakurai

发明人： Nobuyuki Hirayama ,  Masataka Sakurai

IPC分类号： B41J29/38

CPC分类号： B41J29/38 ,  B41J2/04541 ,  B41J2/04555 ,  B41J2/0458

摘要： This invention is directed to: a printhead substrate which employs a constant current driving method and can suppress power consumption in a standby state, prevent an increase in printhead temperature, and stably discharge ink; a printhead using the printhead substrate; a head cartridge incorporating the printhead; and a printing apparatus using the printhead. The head substrate includes a plurality of printing elements; a plurality of driving elements which are provided in correspondence with the plurality of printing elements and drive the plurality of printing elements; a reference voltage generation circuit which generates a reference voltage; a reference current generation circuit which generates a first reference current on the basis of the generated reference voltage; a plurality of constant current sources, each of which generates a constant current to drive the plurality of printing elements on the basis of the generated first reference current; and a switch which controls supply of the first reference current in accordance with a printing operation.

摘要翻译： 本发明涉及：采用恒流驱动方法并能够抑制待机状态下的功耗的打印头基板，防止打印头温度升高并稳定地排出墨; 使用打印头基板的打印头; 并入打印头的头盒; 以及使用打印头的打印装置。 头基板包括多个打印元件; 多个驱动元件，其与所述多个打印元件对应地设置并驱动所述多个打印元件; 产生参考电压的参考电压产生电路; 参考电流产生电路，其基于产生的参考电压产生第一参考电流; 多个恒定电流源，每个恒定电流源产生恒定电流以根据产生的第一参考电流来驱动多个打印元件; 以及根据打印操作来控制第一参考电流的供应的开关。

公开(公告)号：US07448730B2

公开(公告)日：2008-11-11

申请号：US10577320

申请日：2004-11-08

申请人： Nobuyuki Hirayama

发明人： Nobuyuki Hirayama

IPC分类号： B41J2/05

CPC分类号： B41J2/04541 ,  B41J2/04543 ,  B41J2/04548 ,  B41J2/0455 ,  B41J2/04555 ,  B41J2/0458 ,  B41J2/04588

摘要： A printhead includes a plurality of switching elements which are arranged in correspondence with respective printing elements and control energization to the respective printing elements, a reference voltage circuit which generates a reference voltage, a current generation circuit which generates a reference current (Iref) on the basis of a reference voltage (Vref) generated by the reference voltage circuit, and a plurality of constant current sources which supply, in accordance with the reference current (Iref) generated by the current generation circuit, constant currents via the switching elements arranged in correspondence with the respective printing elements.

摘要翻译： 打印头包括多个开关元件，这些开关元件与相应的打印元件相对应地布置并且对各个打印元件进行控制通电，产生参考电压的参考电压电路，产生参考电流的电流产生电路（I SUB 基于由参考电压电路产生的参考电压（V SUB ref），以及多个恒定电流源，根据参考电流（I < 由当前产生电路产生的恒定电流经由与各个打印元件对应地布置的开关元件。