摘要:
There is provided a communication apparatus which, in an ad-hoc network, when receiving control packets from a plurality of terminals, can determine whether or not there is a collision among the control packets, and, based on the determination, can be prevented from continuing to be out of the network due to a collision among the control packets transmitted from the plurality of terminals. In the communication terminal, a communication section receives a control packet which periodically comes up on a communication path. When the communication apparatus receives a plurality of control packets which are defective in at least payload portions thereof within a predetermined time period, if a control section determines that source addresses included in header portions of the control packets which are defective in the payload portions thereof include a source address which is not identical to the other source addresses, the control section determines that the control packets are transmitted from a plurality of terminals and collide with each other.
摘要:
A promoter for a polycondensation reaction used together with a catalyst in a polycondensation reaction, the promoter for a polycondensation reaction comprising a pyrogallol compound having a benzene ring of which three hydrogen atoms adjacent to each other are substituted by hydroxyl groups; and a polycondensation resin obtained by polycondensing raw material monomers using the promoter as defined above and the catalyst. A polycondensation resin can be produced using the promoter of the present invention together with a catalyst in a polycondensation reaction, and the polycondensation resin can be used in various applications including, for example, films, sheets, fibers, toner materials for electrophotography, and the like.
摘要:
The invention provides an electrophotographic photoreceptor having a cylindrical support, and a charge-generating layer and a charge-transporting layer on or above the cylindrical support, wherein the thickness of the charge-generating layer is increased from the central portion in the axial direction of the cylindrical support towards both end portions thereof, and the difference in thickness between the two end portions is 2.5% or less of an average thickness of the charge-generating layer. Also disclosed are a method of producing the electrophotographic photoreceptor, a process cartridge including the electrophotographic photoreceptor, and an image-forming apparatus.
摘要:
A droplet-jetting device having high jetting ability, which includes an actuator featuring a liquid chamber and a heater and a controller. The liquid chamber has an aperture for jetting droplets of an operation liquid which the liquid chamber accommodates. The heater provides thermal energy to the operation liquid and forms bubbles for droplet-jetting. The controller controls a driving signal, which is inputted to the heater. The driving signal includes a preparatory heating pulse signal, which corresponds to a preparatory heating energy for preparatory heating of the operation liquid, and a trigger pulse signal, which corresponds to a jetting thermal energy for bubble creation and growth. A power supplied by the preparatory heating pulse signal is smaller than a power supplied by the trigger pulse signal, and a heating duration by the preparatory heating pulse signal is longer than a heating duration by the trigger pulse signal.
摘要:
Plural unit heads are disposed in a paper conveyance direction, and recording head units are configured and disposed in a staggered manner. Head recovery devices are disposed as positions avoiding the locus of splattering of ink droplets from the unit heads. The recording head units can record an image across the entire width of a sheet of paper, and it is not necessary to move the recording head units in the paper width direction. Dummy jetting can be conducted at gap regions between two sheets of paper in an image recording section. The plural unit heads are unitized.
摘要:
A droplet-jetting device having high jetting ability, which includes an actuator featuring a liquid chamber and a heater and a controller. The liquid chamber has an aperture for jetting droplets of an operation liquid which the liquid chamber accommodates. The heater provides thermal energy to the operation liquid and forms bubbles for droplet-jetting. The controller controls a driving signal, which is inputted to the heater. The driving signal includes a preparatory heating pulse signal, which corresponds to a preparatory heating energy for preparatory heating of the operation liquid, and a trigger pulse signal, which corresponds to a jetting thermal energy for bubble creation and growth. A power supplied by the preparatory heating pulse signal is smaller than a power supplied by the trigger pulse signal, and a heating duration by the preparatory heating pulse signal is longer than a heating duration by the trigger pulse signal.
摘要:
A wire bonding apparatus including a capillary, which allows a tip end of a bonding wire to protrude from the bottom, and a discharge electrode, which generates a spark between the electrode and the tip end of the wire by an electrical discharge; and auxiliary electrodes being disposed so as to surround the area between the tip end of the wire and the tip end of the discharge electrode. The end portion of the spark on the wire side is guided onto the axial line of the portion of the wire that protrudes from the capillary by the electric fields from the auxiliary electrodes, and the end portion of the spark on the discharge electrode side is guided onto the axial line of the discharge electrode. Dissociated ions are adsorbed on the auxiliary electrodes, preventing the discharge electrode from being contaminated.
摘要:
In the present invention, for an NC program for controlling a machine tool, information for machining quality required by a machine tool is prewritten in the program. A measurement program for measuring the machining quality of the workpiece using a measuring machine is produced by analyzing the NC program. The machining quality of the workpiece is measured by the measurement program and the measuring machine. The machining quality of the workpiece can be judged by comparing the measurement results and the machining quality information included in the NC program. By utilizing this quality judgement, simple and effective system control can be achieved when a system such as CIM (Computer Integrated Manufacturing) is constructed in cooperation with other machine tools.
摘要:
A stencil discharge apparatus for a stencil printing machine has a discharge box for storing a predetermined amount of stencil sheets after being peeled off from a printing drum so as to discharge the stencil sheets. The stencil discharge apparatus includes a compressing device for compressing the stencil sheets discharged into the discharge box through motion of a compressing plate; a compressing pressure sensing device for sensing and outputting a compressing pressure of the compressing means; a moving amount sensing means for sensing and outputting an amount of motion of the compressing plate; and a control device for calculating a storing amount of the stencil sheets in the discharge box on the basis of sensing a predetermined pressure through the compressing pressure sensing device and an amount of motion sensed by the moving amount sensing device.