摘要:
An interference measurement and evaluation system for accurately estimating an interference characteristic of a receiving side including nonlinear interference for a wireless communications system, having a transmission signal for wireless communication and an interference signal between an interfered side and the receiving side, provided with a nonlinear interfering side giving an interference signal having a level unable to be neglected compared with the level of the modulated carrier transmitted from the interfered side, and provided with an interference characteristic estimating means for estimating an interference characteristic including a nonlinear interference characteristic possessed by the receiving side in accordance with a received signal level and a received level when a nonlinear interference theoretical curve given in relation with the line quality satisfies a predetermined line quality.
摘要:
A developing apparatus includes a developer container for containing a developer comprising magnetic carrier and non-magnetic toner produced through polymerization method; a developer carrying member, provided in an opening of the developer container, for carrying the developer; detecting means for detecting a toner content in the developer, the detecting means including a coil sensor and detecting the toner content using magnetic permeability of the developer.
摘要:
An image forming apparatus comprises a charging member, an image bearing member and a developer bearing member. The charging member comprises a first magnetic field generating device, wherein a first magnetic field with a first magnetic pole closest to the image bearing member has a half-value width &agr;°. Measuring from a center of the charging member, an angle between a closest point of the image bearing member and a maximum magnetic flux density of the first magnetic pole is &thgr;c°. The developer bearing member comprises a second magnetic field generating device, wherein a second magnetic field with a second magnetic pole closest to the image bearing member has a half-value width &bgr;°. Measuring from a center of the developer bearing member, an angle between a closest point of the image bearing member and a maximum magnetic flux density of the second magnetic pole is &thgr;d°. The charging member, developer bearing member and image bearing member are arranged so that &agr;>&bgr; and &thgr;c
摘要:
A developing device having a developer bearing member for carrying thereon a developer having toner and carrier and conveying the developer to a developing area, an agitating member for agitating the developer, a rotation radius R (m) of the agitating member being 5.0.times.10.sup.-3 (m)
摘要:
A camera includes a liquid-crystal display device with a liquid crystal whose transmittance is variable. A liquid-crystal control section, in a release signal waiting mode, brings the liquid crystal of the liquid-crystal display device into the light-transmitting state and, when a release signal is output to turn on an exposure mode, lowers the transmittance of the liquid crystal of the liquid-crystal display device temporarily.
摘要:
An image forming apparatus includes an image bearing member on which first and second electrostatic images are formed, a first developing device for developing the first electrostatic image on the image bearing member with a first toner, and a second developing device for developing the second electrostatic image on the image bearing member bearing the first toner image thereon with a second toner. The second developing device has a toner carrying member opposed to the image bearing member and carrying the toners thereon. The force with which the first toner, having mixed into the second developing device, is carried on the toner carrying member is smaller than the force with which the second toner is carried on the toner carrying member.
摘要:
A developing apparatus includes a developer carrying member for carrying a magnetic developer. The developer carrying member is provided with a plurality of magnetic poles. The apparatus also includes a regulating member for regulating the layer thickness of the developer on the developer carrying member, and an elastic rotatable member, disposed upstream of a developer regulating position of the regulating member with respect to a movement direction of the developer carrying member, for supplying the magnetic developer onto the developer carrying member. A surface of the elastic rotatable member is composed of unicellular foamed material.
摘要:
An apparatus for recording data to a film, executing: both unchangeable recording such as optical recording, and changeable recording such as magnetic recording for relatively important data, which is required protection from data failure and is permitted to change such as date, date print mode, and trimming direction of printing area, and executing: only magnetic recording for relatively unimportant data, which is allowed some data failure and has few possibility of changing such as aperture value, shutter time value, photometric value, exposure compensation value, and object distance value; wherein the apparatus is housed in a detachable back cover of a camera, and data being transmitted from the main body of the camera to the back cover.
摘要:
There is disclosed a color toner having an excellent fixability, an improved antioffset property and a superior transparency of an image fixed on an OHP sheet. The color toner comprises 100 parts by weight of a polyester resin prepared by condensation polymerization of the following components (1) and (2), 0.1 to 5 parts by weight of a zinc complex of an aromatic oxycarboxylic acid which may have a substituent, and 1 to 20 parts by weight of a colorant;Component (1): diol represented by the following Formula (a): ##STR1## wherein R represents an ethylene group or a propylene group; and X and Y each are an integer, provided that the sum of X and Y is 2 to 7 in average:Component (2): a mixture of a divalent acid component comprising a divalent carboxylic acid having an aliphatic hydrocarbon side chain of 3 to 22 carbon atoms or a lower alkyl ester thereof, and a trivalent acid component comprising a trivalent carboxylic acid or an anhydride thereof in a ratio of 10 to 50 mole % of the total acid components.
摘要:
In a diaphragm control apparatus of a camera for opening and closing aperture blades using a stepping motor, a step-out status of the stepping motor is detected if an open detecting switch for detecting a full-open status of the aperture blades does not function after a predetermined number of drive pulses necessary for resetting the aperture blades to a full-open position are supplied to the stepping motor. Normally, the stepping motor is subjected to such a slow-up control that the continuing duration of the energizing step (pulse width of an energizing pulse) is gradually reduced from the time the motor has been activated to increase a pulse rate and a driving speed. When the step-out status is detected, the pulse rate of the energizing pulse is set constant, and the driving speed of the stepping motor thereafter is fixed to a constant low speed to provide high-torque driving, and opening the aperture blades to the full-open position. Thereafter, when the aperture is closed to a given aperture value, the slow-up control is executed again, however, the pulse width of the energizing pulse is set lower than that used before detection of the step-out status, thus increasing the driving torque.