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1. 发明授权

US5361088A Electrophotographic printer and method for controlling the same 失效
标题翻译：电子照相打印机及其控制方法
公开(公告)号：US5361088A
公开(公告)日：1994-11-01
申请号：US28747
申请日：1993-03-09
申请人： Katsuyuki Ito , Shinichi Katakura , Takehiko Okubo
发明人： Katsuyuki Ito , Shinichi Katakura , Takehiko Okubo
IPC分类号： B41J2/44 , B41J2/45 , B41J2/455 , B41J29/00 , B41J29/38 , G03G15/00 , G03G15/02 , G03G15/04 , G03G15/16 , G03G15/20 , G03G15/22 , H04N1/29 , G01D15/06 , G01D15/14
CPC分类号： G03G15/221 , G03G15/043
摘要： An electrophotographic printer capable of changing its printing speed includes a change signal generating circuit for generating a speed change signal, a head scan cycle setting circuit for setting a cycle time of a scan line of an LED array head, and a motor speed setting circuit for setting a rotation speed of a photosensitive drum. Since the head scan cycle setting circuit and the motor speed setting circuit are activated in response to the speed change signal outputted from the change signal generating circuit, the operations of the photosensitive drum and the LED array head are synchronized with each other, so that the printer can print a fine image on a recording medium. The printer control unit including those circuits also includes control circuits for controlling a constant current supplied to a transfer roller, and for controlling a temperature of fixing rollers, to avoid unevenness of printing.
摘要翻译：能够改变其打印速度的电子照相打印机包括用于产生变速信号的变化信号产生电路，用于设置LED阵列头的扫描线的周期时间的头扫描周期设置电路和用于设定感光鼓的旋转速度。由于头扫描周期设置电路和电动机速度设置电路响应于从改变信号发生电路输出的速度变化信号被激活，所以感光鼓和LED阵列头的操作彼此同步，打印机可以在记录介质上打印精细图像。包括那些电路的打印机控制单元还包括用于控制提供给转印辊的恒定电流并且用于控制定影辊的温度的控制电路，以避免印刷不均匀。

2. 发明授权

US5424934A Multivoltage power supply and control method thereof 失效
标题翻译：多电源电源及其控制方法
公开(公告)号：US5424934A
公开(公告)日：1995-06-13
申请号：US148431
申请日：1993-11-08
申请人： Jiro Tanuma , Katsuyuki Ito , Shinichi Katakura , Takehiko Okubo
发明人： Jiro Tanuma , Katsuyuki Ito , Shinichi Katakura , Takehiko Okubo
IPC分类号： H02M3/28 , H02M3/335 , H02M7/00
CPC分类号： H02M3/33515 , H02M3/28 , H02M3/33561
摘要： A multivoltage power supply which can output a plurality of high voltages in parallel. The voltage values of the respective outputs are feedback to an A/D converter. Each feedback signal is converted to a digital signal and the difference between the digital signal and a corresponding predetermined output voltage is then calculated in the form of a digital value. This digital value is inputted to a corresponding auto-reload timer, whereby a pulse signal having a pulse width corresponding to the digital value is output at a predetermined frequency.
摘要翻译：可以并行输出多个高电压的多电压电源。各个输出的电压值反馈给A / D转换器。每个反馈信号被转换为数字信号，然后以数字值的形式计算数字信号与对应的预定输出电压之间的差值。该数字值输入到相应的自动重载定时器，由此以预定的频率输出具有对应于数字值的脉冲宽度的脉冲信号。

3. 发明授权

US5101233A Electrophotographic recording apparatus indicating a wear rate for consumable parts 失效
标题翻译：指示消耗部件的磨损率的电子照相记录装置
公开(公告)号：US5101233A
公开(公告)日：1992-03-31
申请号：US654501
申请日：1991-02-13
申请人： Katsuyuki Ito , Naoji Akutsu , Takehiko Okubo , Koichi Negishi , Kazuhiko Itoh
发明人： Katsuyuki Ito , Naoji Akutsu , Takehiko Okubo , Koichi Negishi , Kazuhiko Itoh
IPC分类号： G03G15/00 , G03G21/16
CPC分类号： G03G15/553 , G03G15/55 , G03G21/16 , G03G2221/16 , G03G2221/1663 , G03G2221/18 , G03G2221/183
摘要： In an electrophotographic recording device which includes a number of consumable parts, there is provided a first memory for storing a currently integrated total number of prints, and a number of prints at replacement of each consumable part. A second memory stores a number of lifetime prints, which is a conversion of the life of each part into a number of prints. A processor performs a first calculation to calculate a number of prints for replaced consumable parts after such replacement and a second calculation to calculate a wear rate of the replaced consumable parts from the number of lifetime prints read out from the second memory, and from the number of prints calculated by the first calculation. An indication section indicates the wear rate obtained from the second calculation. The number of prints stored in the first memory for the consumable parts at replacement is written into the current total number of prints.
摘要翻译：在包括多个可消耗部件的电子照相记录装置中，提供了用于存储当前集成的总数量的第一存储器和用于替换每个消耗部件的多个打印件。第二个存储器存储许多寿命打印，这是将每个部分的寿命转换成多个打印件。处理器执行第一次计算以计算在这种更换之后更换的可消耗部件的打印数量，以及第二次计算，以从第二存储器读出的寿命打印数量和从第二存储器读出的寿命打印数量计算更换的消耗部件的磨损率通过第一次计算计算的印刷品。指示部分表示从第二次计算获得的磨损率。存储在替换的可消耗部件的第一存储器中的打印数量被写入当前总打印数量。

4. 发明授权

US5722010A Electrophotographic printer having transferring device with control mode switching control 失效
标题翻译：具有控制模式切换控制的转印装置的电子照相打印机
公开(公告)号：US5722010A
公开(公告)日：1998-02-24
申请号：US673904
申请日：1996-07-01
申请人： Takehiko Okubo , Toshikazu Ito , Toshiro Murano
发明人： Takehiko Okubo , Toshikazu Ito , Toshiro Murano
IPC分类号： G03G15/16 , G03G15/00
CPC分类号： G03G15/1675 , G03G2215/1614
摘要： A sensor detects the leading edge of the print medium. A position counter counts a time length required for the print medium to advance from where the print medium is detected by the sensor to the photosensitive drum. The position counter also counts a time length for the print medium to advance past the photosensitive drum. The distance of the toner image from the leading edge of the print medium is determined on the basis of the image data of print data. A row counter counts the number of dots in a direction in which the print medium is transported and a column counter counts the number of dots in a direction perpendicular to the direction the print medium is transported. The distance between the first line of an image data and the line in which a first dot to be printed in the image data is determined on the basis of the contents of the column counter and the row counter. The controller switches the transferring device from the constant current control mode to the constant voltage control mode immediately before the first line is printed on the print medium, thereby allowing transferring of the toner image in accordance with the distance of the toner image from the leading edge of the print medium.
摘要翻译：传感器检测打印介质的前缘。位置计数器计数打印介质从由传感器检测到打印介质到感光鼓的前进所需的时间长度。位置计数器还计数打印介质通过感光鼓的时间长度。基于打印数据的图像数据确定调色剂图像与打印介质的前沿的距离。行计数器对传送打印介质的方向上的点数进行计数，并且列计数器对与传送打印介质的方向垂直的方向上的点数进行计数。基于列计数器和行计数器的内容，确定图像数据的第一行之间的距离和要在图像数据中打印的第一点的行。所述控制器将所述传送装置从所述恒定电流控制模式切换到在所述第一行被打印在所述打印介质上之前的所述恒定电压控制模式，从而允许根据所述调色剂图像与所述前端的距离的打印介质。

5. 发明授权

US4905028A Electrophotographic printer 失效
标题翻译：电子照相打印机
公开(公告)号：US4905028A
公开(公告)日：1990-02-27
申请号：US370438
申请日：1989-06-23
申请人： Takehiko Okubo , Shigeki Nakajima
发明人： Takehiko Okubo , Shigeki Nakajima
IPC分类号： B41J2/44 , B41J2/45 , B41J2/455 , B41J2/46 , B41J29/13 , G03G15/04 , G03G21/16 , G06K15/12
CPC分类号： G03G21/1821 , B41J29/13 , G03G21/1628 , G03G21/1666 , G06K15/12 , G03G2221/1636 , G03G2221/1654 , G03G2221/166 , G03G2221/183
摘要： An electrophotographic printer comprises an access cover for opening and closing an upper opening of a cavity in an enclosure, a rotatable head holder supported at one adjacent to the inner surface of the access cover, an optical print head provided on the inner surface of the head holder, and a process cartridge containing a photosensitive drum provided so that it can be inserted and removed through the upper opening. The optical print head may have holes provided at both ends thereof, and the process cartridge may have pins which are engageable with the holes on the optical print head, thereby to facilitate alignment between the optical print head and the photosensitive drum. The optical print head may have a surface electrode, and the enclosure may have a pressure-contact type connector, so that when the head holder is closed, the surface electrode of the optical print head and the pressure-contact type connector of the enclosure are connected to enable supply of electric power and print signals to the optical print head.
摘要翻译：电子照相打印机包括用于打开和关闭外壳中的空腔的上开口的进入盖，在接近盖的内表面附近支撑的可旋转头保持器，设置在头部的内表面上的光学打印头保持器和包含设置成能够通过上部开口插入和移除的感光鼓的处理盒。光学打印头可以具有设置在其两端的孔，并且处理盒可以具有可与光学打印头上的孔接合的销，从而便于光学打印头和感光鼓之间的对准。光学打印头可以具有表面电极，并且外壳可以具有压力接触型连接器，使得当头部保持器关闭时，光学打印头的表面电极和外壳的压力接触型连接器是连接以便能够向光学打印头提供电力和打印信号。

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