摘要:
An acceleration sensor comprises a fixed case member and a cover assembly collectively defining a closed space in which the oscillation plate and the piezoelectric element received therein. The oscillation plate and the piezoelectric element are oscillatably supported by a supporting portion formed on the central bottom portion of the fixed case member. The oscillation plate and the piezoelectric element are integrally oscillatable in two different modes consisting of: a {fraction (1/1)} oscillation mode where the oscillation plate is irregularly deformed to have the peripheral portion oscillated with a single vector in the oscillation direction of the oscillation plate when the oscillation plate is oscillated with respect to the fixed case member at a resonance frequency f0; and a ½ oscillation mode where the oscillation plate is irregularly deformed to have two different half parts of the peripheral portion oscillated with their respective different vectors opposite to each other in the oscillation direction of the oscillation plate when the oscillation plate is oscillated with respect to the fixed case member at a noise frequency f01, and the resonance frequency f0 and the noise frequency f01 are out of the range of effective oscillation frequencies. Thus constructed acceleration sensor is of high performance and appropriate for automatic production at a low cost.
摘要:
An electrophotographic image forming apparatus includes a first electrostatic-capacity generating portion disposed at such a position that the first electrostatic capacity generating portion contacts the developer accommodated in the developer accommodating portion. The first electrostatic capacity generates portion generating an electrostatic capacity corresponding to an amount of the developer. A second electrostatic-capacity generating portion is disposed at such a position that the second electrostatic-capacity generating portion does not contact the developer accommodated in the developer-accommodating portion. The second electrostatic capacity generating portion generates a reference electrostatic capacity. A developer amount detector is provided for detecting an amount of the developer accommodated in the developer-accommodating portion on the basis of the electrostatic capacity generated by the first electrostatic-capacity generating portion and the reference electrostatic capacity generated by the said second electrostatic-capacity generating portion.
摘要:
A developing apparatus includes a developer containing portion containing a developer having a weight average particle diameter of not more than 7 &mgr;m, a developer bearing member for bearing a developer, and an agitating member that agitates the developer contained in the developer containing portion. The agitating member is intermittently driven with respect to rotation of a developing sleeve. The agitating member is driven to rotate for one page every time the image forming apparatus performs a predetermined number of printing operations. A rod member having a crank-like shape may be used as the agitating member and both of the end portions serve as the center of rotation. By controlling the drive of the agitating member, it is possible to effectively adjust the supply of toner to the developing sleeve and prevent the density lowering phenomena caused due to inflow of a large amount of the new toner presented at the rear of the developing container. The agitating member may be positioned closest to the developing sleeve and may be arranged below the toner container. Accordingly, to these arrangements, the image density after printing a low print pattern can be prevented from being lessened to obtain a uniform image density even though a one-component magnetic developer having the weight average particle sized diameter of not more than 7 &mgr;m is used.
摘要:
A process cartridge includes an electrophotographic photosensitive member, a developer for developing a latent image formed on the electrophotographic photosensitive member, a developer remaining amount detecting member for detecting a remaining amount of developer in the developer, and a non-volatile memory for memorizing information corresponding to at least the print number of sheets and the developer remaining amount in such a manner that such information can be read out and re-written by an image forming apparatus. The present invention also provides and electrophotographic image forming apparatus to which such a process cartridge can be detachably mounted.
摘要:
In a V-ribbed belt used in a manner of bringing the back face as well as the bottom face into contact with pulleys, a hiding layer for hiding the texture of the belt is formed on a part of the side faces of the belt body, and a mark indicating the history of belt manufacturing is provided on the hiding layer. This prevents the occurrence of inconveniences resulting from the formation of the mark on the belt back face and keeps the mark recognizable for a long time.
摘要:
The strap processing apparatus comprises a first carrying conveyer for carrying a bundle of a predetermined number of layered valuable papers sealed with a sealing strap, a second carrying conveyer and an upper conveyer for bending the bundle of layered valuable papers carried by the carrying means thereby to form a clearance between the upper surface portion of the layered valuable papers and the sealing strap, a pair of strap catchers for clamping a portion of the sealing strap lifted apart from the upper surface portion of the layered valuable papers with a predetermined distance maintained between the pair of strap catchers each other, and a cutter for cutting an intermediate portion of the sealing strap clamped by the pair of strap catchers.
摘要:
A fuel vapor capturing canister includes a cylindrical casing having a communicating hole which is formed at one end so as to communicate with the atmosphere and another communicating hole which is formed at the other end so as to communicate with a fuel tank and an intake system of an engine. An adsorbent is accommodated in the casing so as to form at least one layer. A pair of partitioning plates partition the adsorbent layer longitudinally of the casing. A deflecting plate is disposed between the partitioning plates so as to protrude from an inner wall face of the casing inwardly of the same. The partitioning plates are open in the vicinity of sides of the deflecting plate respectively.
摘要:
A replacement toner cartridge management apparatus is provided with: a receiver which receives toner cartridge replacement information indicating a toner cartridge loaded on one or more than one image forming apparatus which the replacement toner cartridge management apparatus can access via a communication circuit has been replaced or needs to be replaced with a new one; a life information obtainer which obtains the life information of a consumable unit other than the toner cartridge causing the toner cartridge replacement information received by the receiver, a replacement consumable unit for which will be delivered to the same delivery address as a replacement toner cartridge for the toner cartridge causing the toner cartridge replacement information; a determiner which determines a right type of replacement toner cartridge for the toner cartridge causing the toner cartridge replacement information, based on the life information obtained by the life information obtainer; and a transmitter which outputs an instruction to deliver the right type of replacement toner cartridge determined by the determiner.
摘要:
A nuclear-characteristic calculating program for calculating a nuclear characteristic of a fuel rod that contains nuclear fuel and burnable poison includes a first scattering model that can represent a simple scattering of the neutron and a second scattering model that can represent a complicated scattering of the neutron. The nuclear-characteristic calculating program includes step of calculating, when a burnup of the fuel rod is before a set burnup at which the burnable poison is considered to lose neutron absorption capability, the nuclear characteristic of the fuel rod by using the second scattering model, step of switching, when the burnup of the fuel rod is the set burnup, the scattering model from the second scattering model to the first scattering model, and step of calculating, after performing step of switching, the nuclear characteristic of the fuel rod by using the first scattering model.
摘要:
Provided is a cleaning device having a compact structure.A recovery unit (17) is configured such that dust collection boxes (76, 77) are disposed with respect to a cleaning brush (6) and a metallic roller (7), respectively. A cleaning blade (9) is fixed to a blade holder (79) via a bolt (78). When the recovery unit (17) is incorporated in a frame unit, the recovery unit (17) is moved in a predetermined direction so as to be brought into contact with a positioning section (14Bbb) of a side plate 14B of the frame unit (11). When the recovery unit (17) is moved, a fixing bolt (85) is loosened so that a straight portion (86a) of a fixed washer (86) is aligned with the vertical direction, and then, the fixing bolt (85) is tightened so that the recovery unit is fixed. On the other hand, when the recovery unit (17) is fixed, the fixing bolt (85) is loosened so that the straight portion of the fixed washer (86) is aligned with the horizontal direction, and then, the fixing bolt is tightened so that the recovery unit is fixed.