公开(公告)号：US09335710B2

公开(公告)日：2016-05-10

申请号：US14855219

申请日：2015-09-15

Applicant: KONICA MINOLTA, INC.

Inventor： Mikiyuki Aoki ,  Taku Kimura ,  Yohei Yamada ,  Morio Kinoshita ,  Toru Kasamatsu ,  Kouei Cho

IPC: G03G15/00 ,  H02M3/24

CPC classification number: G03G15/80 ,  G03G2215/0132 ,  H02M1/36 ,  H02M3/156 ,  H02M3/24 ,  H02M3/33523 ,  H02M2001/0032 ,  H02M2001/0035 ,  H02M2001/0054 ,  H02M2001/007 ,  H02M2001/008 ,  Y02B70/1491 ,  Y02B70/16

Abstract: An electric power supply control device comprises a first converter, at least one second converter, and an electrical voltage control unit. The second converter can work in intermittent oscillation, and converts outputting electrical voltage from the first converter. The electrical voltage control unit controls the outputting electrical voltage of the first converter, so that the outputting electrical voltage is equal to or less than a minimum value of upper limits of operating electrical voltage of the second converter, and is more than or equal to a maximum value of lower limits of operating electrical voltage of the second converter, and at least one of the second converter performs low electric power behavior.

Abstract translation: 电源控制装置包括第一转换器，至少一个第二转换器和电压控制单元。 第二转换器可工作在间歇振荡中，并转换为从第一转换器输出电压。 电压控制单元控制第一转换器的输出电压，使得输出电压等于或小于第二转换器的工作电压的上限的最小值，并且大于或等于a 第二转换器的工作电压的下限的最大值，以及第二转换器中的至少一个执行低电力行为。

公开(公告)号：US09256188B2

公开(公告)日：2016-02-09

申请号：US14662865

申请日：2015-03-19

Applicant: Konica Minolta, Inc.

Inventor： Toru Kasamatsu ,  Mikiyuki Aoki ,  Yohei Yamada ,  Kouei Cho

IPC: G03G15/00 ,  G03G15/06

CPC classification number: G03G15/80 ,  G03G15/065

Abstract: An image forming apparatus having image supporting members and developing devices provided for a plurality of colors respectively, and a developing bias source. The developing bias source includes DC power circuits provided for the colors respectively, an AC power circuit provided for use in common for all of the colors, and an element provided for at least one of the colors other than black. The developing bias source generates developing biases by superimposing an AC voltage output from the AC power circuit on DC voltages output from the DC power circuits and applies the developing biases to the respectively corresponding developing devices. The element maintains a constant voltage having a potential of an opposite polarity to a potential of charged toner used for the development. The developing bias source further superimposes the constant voltage on the developing bias for the at least one of the colors other than black.

Abstract translation: 具有分别设置有多种颜色的图像支持部件和显影装置的图像形成装置和显影偏压源。 显影偏压源包括分别为颜色提供的DC电源电路，为所有颜色共同使用而设置的AC电源电路，以及为黑色以外的至少一种颜色提供的元件。 显影偏压源通过将从AC电源电路输出的AC电压叠加在从DC电源电路输出的直流电压上产生显影偏压，并将显影偏压施加到相应的显影装置。 该元件保持具有与用于显影的带电调色剂的电位相反极性的电位的恒定电压。 显影偏压源进一步将恒定电压叠加在黑色以外的至少一种颜色的显影偏压上。