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公开(公告)号：US4959687A
公开(公告)日：1990-09-25
申请号：US228462
申请日：1988-08-05
CPC分类号： G03G15/065
摘要： A controller for controlling a bias power source associated with, for example, a developing unit of an electrophotographic copier such that a bias voltage to be applied to the developing unit for the adjustment of image density is variable in level. The controller includes a central processing unit in which a timer/event counter is built in for delivering a trigger pulse signal to trigger the power source. In order to produce a bias voltage associated with a desired density level, the trigger pulse signal is subjected to pulse width modulation control at a period which is far shorter than an output time consant of the power source.
摘要翻译： 用于控制与例如电子照相复印机的显影单元相关联的偏置电源的控制器，使得施加到显影单元上用于调节图像浓度的偏置电压是可变的。 控制器包括中央处理单元，其中内置定时器/事件计数器，用于传送触发脉冲信号以触发电源。 为了产生与期望的浓度水平相关联的偏置电压，触发脉冲信号以远远短于电源的输出时间的时间经受脉冲宽度调制控制。
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公开(公告)号：US4952976A
公开(公告)日：1990-08-28
申请号：US221337
申请日：1988-07-19
申请人： Eiichi Katoh , Hitoshi Hoshi
发明人： Eiichi Katoh , Hitoshi Hoshi
IPC分类号： G03G15/08
CPC分类号： G03G15/08 , G03G15/0856 , G03G15/0862
摘要： A copier with a toner supply device which includes a toner cartridge. Toner is supplied from the toner cartridge to a hopper section of a developing unit of the copier and from the toner hopper section to a developing section which includes a developing sleeve. The end of toner in the toner hopper is sensed by a toner end sensing mechanism. A switching device is provided which performs an on-off operation as an operation for supplying toner from a new or full toner cartridge proceeds. A controller controls the developing unit, toner end sensing mechanism and switching device to insure good reproductions even before or immediately after the supply of toner.
摘要翻译： 一种具有包括调色剂盒的调色剂供应装置的复印机。 调色剂从调色剂盒供应到复印机的显影单元的料斗部分和从调色剂料斗部分到包括显影套筒的显影部分。 调色剂料斗中的调色剂的末端由调色剂结束感测机构感测。 提供一种开关装置，其作为从新的或全部的墨粉盒供应调色剂的操作进行开关操作。 控制器控制显影单元，调色剂末端检测机构和开关装置，以确保在调色剂供应之前或之后立即进行良好的再现。
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公开(公告)号：US4602778A
公开(公告)日：1986-07-29
申请号：US692491
申请日：1985-01-18
申请人： Hiroshi Hirose , Tokuzo Kaneda , Tomio Sasaki , Kunio Hibi , Hitoshi Hoshi
发明人： Hiroshi Hirose , Tokuzo Kaneda , Tomio Sasaki , Kunio Hibi , Hitoshi Hoshi
CPC分类号： G03B27/625 , B65H9/00
摘要： A copying machine which takes copies of a draft sheet by slit exposure while it is being conveyed. This copying machine includes a draft correction apparatus. This draft correction apparatus is provided with holding bars attached to a copying machine body so as to turn round the center line of a convey way for the draft, a pair of curved guide plates leaving therebetween a distance sufficient for forming a curved convey way constituting a part of said convey way, at least a pair of solenoids which are attached to the copying machine body on both sides of the draft convey way for turning said holding bars, draft sensors which are provided corresponding to said solenoids on both sides of the center line of the draft convey way this side of the solenoids, and a control means which inputs detection signals from the draft sensors and outputs working signals corresponding thereto against solenoids.
摘要翻译： 一种复印机，其在传送时通过狭缝曝光来接受稿纸的副本。 该复印机包括一个草稿修正装置。 该牵伸修正装置具有附接到复印机主体的保持杆，以便绕着用于牵伸的输送方式的中心线转动，一对弯曲的导向板离开它们之间的距离足以形成构成弯曲的输送方式 所述传送方式的一部分，至少一对螺线管，其在用于转动所述保持杆的通气道两侧的复印机主体上，在中心线的两侧对应于所述螺线管设置的通风传感器 输送方式为螺线管的这一侧，以及控制装置，其输入来自牵伸传感器的检测信号，并输出与螺线管对应的工作信号。
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