Abstract:
A thermally assisted magnetic recording method includes the following steps. The recording layer of a magnetic recording medium is irradiated with a laser beam to produce a locally heated region. This heated region is moved by causing the recording layer and the laser beam to move relative to each other. To record desired information, a recording magnetic field is applied to the heated region of the recording layer. The laser beam has a cross section elongated in the direction in which the heated region is moved.
Abstract:
An image forming device includes a data memory portion for storing files, a printer device for printing images and a communication interface for sending image data. The image forming device further includes a user discrimination portion for discriminating a user who operates the image forming device, a related file extraction portion for searching and extracting files having connection with the discriminated user, a display device for displaying a data list screen for the user to select files to be processed from the extracted files, and a process execution control portion for controlling the printer device, the communication interface or the hard disk drive so as to execute a predetermined process in accordance with the file selected by the user.
Abstract:
A data management device such as an image forming device is provided in which usability for handling data stored in boxes is improved. The image forming device includes a hard disk for storing files including image data, an active job database for storing job information about a job of an image output process, a job list generation portion for generating an active job operation screen for letting a user select any one of jobs and producing the screen for the user, a file search portion for searching a file having connection with the job selected by the user on the active job operation screen from the hard disk, and a file list generation portion for producing a file confirmation screen including a list of the searched files for the user.
Abstract:
A magnetic sensor element 1 includes a substrate 10, a conductive layer 12 of a conductive material, and a magnetic layer 11 of a magnetic material, which encloses the conductive layer 12. AC is applied to the element from a drive power source 50, and a detector 60 detects an impedance change due to an external magnetic field. The magnetic layer 11 is bestowed with magnetic anisotropy in a direction orthogonal to the direction of energization of the element 1. With the provision of the conductive layer 12 of conductive material and also with magnetic anisotropy imparted to the magnetic layer 1, the element 1 may be made a low resistivity element. A reactance change and a resistance change of the element due to an external magnetic field change, thus can be effectively detected in drive frequencies two orders of magnitude lower than in the case of a prior art magnetic sensor element. The magnetic anisotropy of the magnetic layer 11 is controlled to prevent magnetic field detection dynamic range variations with drive frequency.
Abstract:
A vibration-sensing device (10) with high sensitivity includes a torsion bar (16) fixed on both ends thereof to a frame, a tuning fork-shaped vibrating member (12) joined with and supported by the torsion bar (16), and first and second torsion vibrating bodies (14,15) symmetrically projected from the torsion bar (16). The torsion bar (16), the tuning fork-shaped vibrating member (12), and the torsion vibrating bodies (14,15) constitute a torsion vibrating system. The application of an angular velocity to the vibration-sensing device (10) under the condition of plane vibrations of first and second vibrating tines (12a, 12b) of the first tuning fork-shaped vibrating member (12) along an X axis generates Coriolis forces to drive torsion vibration of the first tuning fork-shaped vibrating member (12) round the torsion bar (16), thereby driving torsion vibration corresponding to the angular velocity in the torsion vibrating system. The torsion vibration is amplified by the first and second torsion vibrating bodies (14,15) and detected by torsion vibration-detecting piezoelectric elements (20a,20b) attached to the torsion vibrating bodies (14,15). An angular velocity sensor using the vibration-sensing device, and a method of adjusting the sensitivity of the device are also provided.
Abstract:
An image scanning apparatus according to the present invention is directed to a copying apparatus capable of copying an original on a record sheet and includes a platen on which the original is placed, an image forming device for reproducing an image of the original on a record medium, a scanning device for scanning the original placed on the platen, a projecting device for introducing the image of the original scanned by the scanning device into the image forming device, a driving device for driving the scanning device to move in first and second directions in order to scan the original, a signal generating device for generating a signal corresponding to moving speed of the scanning device, a detecting device for detecting the moving speed of the scanning device based on the generated signal, a determining device for determining based on the generated signal whether the scanning device is under deceleration or not, and a control device for stopping the driving operation of the driving device when the scanning device changes from decelerating operation to accelerating operation or when a detection is made that the detected moving speed becomes equal to or lower than a predetermined speed.
Abstract:
A pulse corresponding to the rotation of a motor which moves a scanning system of an original scanning apparatus in a reciprocating motion is counted by a counter each time when the scanning system is operated in the forward and backward movement. By a software control which is performed basing on the counted value, a time period to start braking the scanning system at a practical position in the returning movement is obtained to stop the scanning system at its home position. In order to obtain a desired speed, a duty ratio of a pulse for applying electricity to a motor is controlled from a pulse which corresponds to the rotation of the motor being operated and a pulse width corresponding to the rotation of the motor when it is driven at a desired speed.
Abstract:
Disclosed is a copying machine employing a uni-focus projection lens in which the lens and a mirror for changing the conjugates length are driven to move independently according to a set magnification ratio and the focal length of the lens. Either the lens or the mirror is moved by a stepping motor according to a set first magnification ratio and the focal length of the lens. Calculated from the travel of either the lens of the mirror is a second magnification ratio, and the other one of the mirror and the lens is moved according to the second magnification ratio. In another way, first the lens is moved according to the set magnification ratio and the focal length of the lens. Calculated from the travel of the lens is the theoretical conjugate length at the set magnification ratio, and the mirror is moved according to the theoretical conjugate length. In another way, first the mirror is moved according to the set magnification ratio and the focal length of the lens. Calculated from the travel of the mirror is the theoretical lens forward length at the set magnification ratio, and the lens is moved according to the theoretical lens forward length.
Abstract:
A copying machine of the scanning exposure type has a device for entering the position on a copy sheet where a copy image corresponding to a document image is to be formed. According to the input from the device, the operation timing of a feeder is controlled which feeds the copy sheet to a position where an image formed by scanning exposure on a photosensitive member is transferred from the member to the sheet, such that the copy image is formed on the specified position on the sheet. When an edition copy mode is set or the image forming position input is given with the setting of this mode, the scanner is controlled to move a distance which permits a shift of the document image as specified by the position input.
Abstract:
A device for cutting a paper web includes a rotary blade assembly, a stationary or non-rotatable blade in cutting engagement with the rotary blade assembly and being retractable from the rotary blade assembly during the cutting engagement therewith, guide members supporting the non-rotatable blade for sliding movement in the direction of the retraction, and the non-rotatable blade being biased into cutting engagement with the rotary blade assembly.