摘要:
Embodiments of the invention prevent a spindle motor from stopping rotation while data on a magnetic disk is being erased by using a permanent magnet. In one embodiment, data in the whole area of the magnetic disk is erased as a consequence of the magnetic disk rotating in the magnetic field of the permanent magnet located so as to face a part of the magnetic disk. A back yoke is located so as to face a base. The back yoke gives a magnetic force to the spindle motor in the opposite direction of the magnetic force of the erasing permanent magnet so that the fluid dynamic bearing spindle motor can retain the rotation as required without stopping rotation.
摘要:
A sheet finisher having a sheet placing member for placing and adjusting a predetermined number of sheets to which a predetermined processing is carried out thereon; a stapling member for stapling the predetermined number of adjusted sheets; and an air-blowing member arranged above the sheet placing member. The air-blowing member is operated to press each of the sheets against the sheet placing member by blowing air and adjust when each of the sheets to which the predetermined processing is carried out is placed on the sheet placing member, and stapling is performed to the sheets by the stapling member.
摘要:
An apparatus and method for adjusting balance in a disk drive, and a method for assembling a disk drive, enables the modification of dynamic balance reliably and efficiently. The apparatus adjusts balance in a hard disk drive having disks and a spindle which are assembled in a base. The acceleration to be applied from an actuator is made to act on the top end of the spindle through a holder plate in one accelerator, while the acceleration to be applied from an actuator is made to act on the base end of the spindle through the base in another accelerator.
摘要:
Group II-VI compound semiconductor crystal containing Zn as group II element or mixed crystal containing the compound semiconductor crystal is etched by an etchant made of H.sub.2 SO.sub.4 aqueous solution dissolved with potassium permanganate KMNO.sub.4. Preferably, an etchant is moved round in a cylindrical vessel by a stirrer, and group II-VI compound semiconductor wafers are held by a jig, disposed generally in parallel with the flow of the etchant, immersed into the etchant, and mirror-etched.
摘要翻译:含有Zn作为II族元素的II-VI族化合物半导体晶体或含有化合物半导体晶体的混晶通过用高锰酸钾KMNO4溶解的H 2 SO 4水溶液制成的蚀刻剂进行蚀刻。 优选地,蚀刻剂通过搅拌器在圆柱形容器中圆形移动,并且组II-VI化合物半导体晶片由夹具保持,该夹具通常与蚀刻剂流平行设置,浸入蚀刻剂中并进行镜面蚀刻。
摘要:
The invention provides a toner recovery apparatus, wherein toner on the surface of photoreceptor is removed by a cleaning device and collected in a container. The image forming apparatus includes a stationary member having a toner inlet end and an opposite end. The toner recovery apparatus comprises a driving device for reciprocatingly moving the container along the stationary member. Bumper means are fixed to the stationary member for colliding with the container when the container moves towards the opposite end for applying negative acceleration to stop the movement of the container.
摘要:
Acrylonitrile polymers of improved whiteness and thermal stability are provided by polymerizing acrylonitrile alone or with a comonomer in an aqueous medium, in the presence of a water-insoluble mercaptan, together with a redox catalyst comprising sulfurous acid or a salt thereof and nitrous acid or a salt thereof.
摘要:
An image communication apparatus includes an unit for obtaining a threshold value that determines a coding format used for transmission of an image stored for the transmission from an information of the image stored for the transmission; and a transmission controlling unit that transmits the image stored for the transmission using a JBIG format if a size of the image stored for the transmission exceeds the threshold value, and transmits the image using a coding format having a compression ratio lower than that of the JBIG format if the size of the image stored for the transmission does not exceed the threshold value.
摘要:
A modem transmission level and modem sensitivity which are communication control information corresponding to the connection form of each destination device are registered in advance in a destination information storage unit so as to be correlated with an abbreviated dialing number of the destination. When a communication instruction using an abbreviated dialing number is received, if a modem transmission level and modem sensitivity are registered in the destination information storage unit as corresponding to the received abbreviated dialing number, the modem is controlled based on those registered modem transmission level and modem sensitivity. If neither a modem transmission level or modem sensitivity is registered as corresponding to the received abbreviated dialing number, the modem is controlled according to a modem transmission level and modem sensitivity that are registered in advance in the apparatus.
摘要:
The invention is to provide a sheet accumulation apparatus enabling to uniformly load tabbed sheets into a train of sheets for load and store the sheets on a tray. The sheet accumulation apparatus has a sheet outlet for successively discharging the sheets, a tray means for loading to hold the sheets thereon, a sheet carrier means for discharging the sheets from the sheet outlet to the side of a downstream, a sheet front end regulating means for colliding the sheets sent by the sheet carrier means against the regulating means at the sheet front ends and regulating them, and a sheet rear regulating means disposed to the tray means for regulating the positions of the sheets from the sheet outlet at the sheet rear ends. The sheet front end regulating means comprises (1) stopper member movable back and forth in the sheet carrying direction; or (2) stopper means of two or more disposed back and forth in the sheet carrying direction and selectively facing the sheet front end regulating means; or (3) stopper means movable in a direction traversing with carrying along the sheet head ends; a shift means for driving the stopper means; and a control means for controlling the shift means.
摘要:
A sheet stacking apparatus having: a sheet discharge tray to move upward and downward; an alignment section including first and second regulating members to align a side edge of a sheet on the tray; a first drive section for moving the tray upward or downward; a second drive section for moving the regulating members in a conveyance width direction; and a control section for controlling the first and the second drive sections so as to: align the side edge of the sheet discharged on the tray on the basis of the position of the first regulating member; when a predetermined amount of the sheets are discharged on the tray, separate the sheets from the first regulating member and the second regulating member by moving the tray or the alignment section and, after that, move the regulating members in the conveyance width direction; and align the side edge of the sheets.