摘要:
A fixing device includes a cylindrical fixing roller, an endless belt and a pressure member. The endless belt rotates along with the fixing roller. The endless belt is disposed at a position facing the fixing roller. The pressure member is disposed inside the endless belt. The pressure member pressurizes the fixing roller via the endless belt. The pressure member includes a contact member and an adjustment member. The contact member directly contacts with the endless belt. The adjustment member adjusts distribution of pressure given to the contact member.
摘要:
A fixing device includes a cylindrical fixing roller, an endless belt and a pressure member. The endless belt rotates along with the fixing roller. The endless belt is disposed at a position facing the fixing roller. The pressure member is disposed inside the endless belt. The pressure member pressurizes the fixing roller via the endless belt. The pressure member includes a contact member and an adjustment member. The contact member directly contacts with the endless belt. The adjustment member adjusts distribution of pressure given to the contact member.
摘要:
A thin magnetic film is deposited over a nonmagnetic or piezoelectric substrate. When a shock wave is propagated through this substrate from its one end to the other end, the permeability of the thin magnetic film is locally increased and a portion or region having a high permeability also travels from one end to the other end of the thin magnetic film in unison with the shock wave. A magnetic core with a signal winding is disposed and magnetically coupled with the thin magnetic film. The signal can be recorded or reproduced while the recording medium is scanned.
摘要:
A thin film magnetic head for reproducing perpendicular magnetization comprising an operative surface disposed to face a recording medium, a thin film magnetization detection portion including a magneto-resistive element perpendicular to the operative surface of the head with one side edge of the magnetization detection portion being exposed to the operative surface, ferromagnetic material with one end thereof being magnetically coupled to the side edge portion of the thin film magnetization detection portion most distant from said operative surface and with the other end thereof being exposed to the operative surface, and a non-magnetic material disposed in an area defined by the thin film magnetization detection portion, the ferromagnetic material and the operative surface, wherein the distance between the thin film magnetization detection portion and the ferromagnetic material at said operative surface is at least five times the distance between the end of the ferromagnetic material magnetically coupled to the side edge portions of the thin film magnetization detection portion and the operative surface.
摘要:
The invention provides a magnetoresistive element which magnetostatically has magnetic anisotropy to control a domain structure and which eliminates Barkhousen noise that will cause abrupt movement of domain walls and irregular magnetization due to a change in the signal magnetic field, wherein a grating pattern is formed on at least one surface of a magnetoresistive film by a process in which a grating pattern is unidirectionally formed on the surface of a substrate and the magnetoresistive film of a ferromagnetic body is deposited thereon. Further, various magnetoresistive elements to which a novel bias method is applied are provided.
摘要:
This invention provides a high sensitivity magnetic head using magneto-resistive effect elements consisting of ferromagnetic thin plates and allows construction of a high precision multi-track head by using thin film and photo-etching techniques. The magnetic head comprises a base, two flux converging cores forming a magnetic gap, a detecting portion provided between the two flux converging cores and extending at right angles to the end of the base, one end of the detecting portion being located in the neighborhood of the gap and having a smaller sectional area than the other portions, and detecting electrodes provided at the opposite ends of the detecting portion. At least one of the two cores is of a ferromagnetic material and integrally formed on the base.
摘要:
A small magnetic head is directly formed on a semiconductor substrate by using diffusion or evaporation techniques. A number of such small magnetic heads may be formed on the same substrate with high precision and high uniformity, and this is useful for constructing a multi-track head. If desired, a semiconductor integrated circuit may also be formed directly on the aforesaid semiconductor substrate.
摘要:
A fixing device includes a fixing member that is rotated by a driving unit and that fixes a developer image on a recording medium; an external heating member that is driven and rotated while contacting an outer peripheral surface of the fixing member, and that heats the fixing member; a moving unit that moves the external heating member between a separation position and a contact position, and that moves the external heating member from the separation position to the contact position after starting the fixing by the fixing member; a drive transmitting mechanism including a fixing-side gear, an external-heating-member-side gear, and a drive transmitting member; and a driving force transmitting/non-transmitting unit that is provided at the drive transmitting mechanism.
摘要:
A fixing device includes: a rotating member supporting section supporting a first rotating member rotatably and movable in direction in which the first rotating member approaches and leaves a second rotating member; a compression spring pushing the rotating member supporting section in the direction of approaching the second rotating member; and a pressing member pressing the compression spring to the rotating member supporting section. The device further includes: a first spring contact member contacting the compression spring and movable in a compression-and-expansion direction of the compression spring relative to the rotating member supporting section; a first adjustment screw adjusting a position of the first spring contact member; a second spring contact member contacting the compression spring and movable in a direction inclined to the compression-and-expansion direction, relative to the pressing member; and a second adjustment screw adjusting a position of the second spring contact member relative to the pressing member.
摘要:
A sheet ejection apparatus which is built in as a part of a processing apparatus main unit for ejecting a sheet processed by a processing section in the processing apparatus main unit to a sheet stack section placed on the top of the processing apparatus main unit. The processing apparatus main unit is formed with a unit reception section and one of sheet ejection units different in specifications can be attached to the unit reception section. The invention is also applied to a sheet processing apparatus using the sheet ejection apparatus.