摘要:
A projection type display apparatus having a long-life light source device with high light utilization efficiency includes first and second light source lamps; a light intensity equalizing element; first and second bending mirrors; an image display element modulating a light flux emitted from the light intensity equalizing element and converting it into image light; and a projection optical system projecting the image light on a screen; and the first light source lamp, the second light source lamp, the first bending mirror and the second bending mirror are arranged so that a first optical axis of the first light source lamp disagrees with a second optical axis of the second light source lamp and a first distance between the first bending mirror and an incidence end differs from a second distance between the second bending mirror and the incidence end.
摘要:
A single-electron transistor comprising at least a substrate, a source electrode and a drain electrode formed on top of the substrate opposing to each other, and a channel arranged between the source electrode is disclosed wherein the channel is composed of ultra fine fibers. By having such a constitution, a sensor can have excellent sensitivity.
摘要:
The present invention is made to provide a pretransfer charging device, which allows (i) reduction of generation of discharge products such as ozone and nitroxide, (ii) excellent uniform charging, (iii) continuous stable charging for a long period of time, and (iv) restraint of distortion of a toner image. The pretransfer charging device includes (i) ion generation needles each provided face to face with an image carrier such as a photoconductor drum or an intermediating transfer belt, and (ii) a high-voltage power supply for applying a negative voltage to each of the ion generation needles. The voltage to be applied from the high-voltage power supply is not less than an ion production threshold voltage but is less than a corona discharge threshold voltage. With this, no corona discharge occurs but negative ions can be generated. This makes it possible to solve various problems caused due to the corona discharge.
摘要:
An image forming apparatus includes an image recording device and a recording material supply device, and an external recording material supply device is connected to the recording material supply device in parallel. In a main body of the recording material supply device, a space is formed between the inner wall on a peripheral equipment connecting side and a longitudinal transport path so as to allow the longitudinal transport path to open from a front side of the recording material supply device. The longitudinal transport path is provided for transporting the recording material from the recording material supply device to the image recording device.
摘要:
The projection display apparatus includes rotation regulating elements for inhibiting a rotation of the mount ring in a tightening direction, and a stopper element displaceable between a non-locked position and a locked position, wherein the stopper element is displaced to the non-locked position when the mount ring is rotated to a rotating position in a loosening direction from a predetermined position in the tightening direction, and is displaced to the locked position when the mount ring is rotated to the predetermined position in the tightening direction.
摘要:
A fixing device includes a fixing member in contact with an unfixed image constituted of developer T on one side of a recording material P; and a pressure member pressed against the fixing member. The fixing device fixes the unfixed image onto the recording material P by causing the recording material P, charged so as to have a same polarity as a polarity of the developer T, to pass through a gap between the fixing member and the pressure member. In the fixing device, an inflow current into the fixing member Ih is 0 when the recording material P passes through the gap between the fixing member and the pressure member. This securely restrains the developer on the recording material from electrostatically offset to the side of the fixing device, thereby maintaining the formation of high quality images.
摘要:
A main body is separable into a static body and a movable body along a carrier path extending from a sheet feeding unit to a sheet discharge unit, and the static body is provided with an image forming unit. The movable body can be slid straightly with respect to the static body. The carrier path can be wide open along the entire length thereof by sliding the movable body, facilitating the removal of stuck sheet from the carrier path.
摘要:
In an image forming apparatus for reproducing an image on an image carrier by means of a laser beam, a frame structure for supporting a laser scanning device has a basic configuration in which lower portions of front and rear frames are coupled to each other by combining square pipes. In the frame structure, a reinforcing member of a flat plate made of a rigid material is fixed to upper square pipes of the front and rear frames which is required to be reinforced. A supporting member which supports optical components constituting the laser scanning device is fixed and supported by the reinforcing member.
摘要:
It is an object of the present invention to provide an energy-saving image forming apparatus capable of fixing toner in a reliable manner to enhance the quality of images, control the temperature of toner residue to reuse the toner in a reliable manner, and reduce the power consumption of the apparatus. In a copier, a photoconductive drum carries a toner image to be transferred to a recording medium, a heater of a fixing unit fixes the transferred toner image on the recording medium, and a cleaning unit removes toner residue on the photoconductive drum after transfer. The whole copier is covered with a housing, a first ventilation system ventilates the inside and outside of the housing, and a controlling section regulates the amount of ventilation by the first ventilation system in accordance with an output from a temperature sensor for detecting the temperature of the cleaning unit. As a result, it is possible to effectively reuse the collected toner and ensure excellent quality images.
摘要:
A toothed belt with improved durability and low noise level during operation having a foundation fabric 2 adhesive-bonded along the engaging surface 5 thereof, wherein the yarns of said foundation fabric 2 extending in the longitudinal direction of the toothed belt comprise a plurality of false-twisted yarns false-twisted in the same false twist direction; the foundation fabric 2 is formed by weaving said yarns and the yarns crossing said yarns in a double-faced twill pattern and is located where the face of said foundation fabric 2 with fewer of said exposed false-twisted yarns is exposed to the front face.