摘要:
An electrophotographic photoreceptor is provided with a photosensitive layer, which contains an azo compound having in the molecule thereof at least one azo group coupled with a coupler residuum represented by the following general formula (I): ##STR1## wherein X means a residuum capable of condensing with a benzene ring to form a substituted or unsubstituted aromatic hydrocarbon ring or a substituted or unsubstituted aromatic heterocyclic ring, Y denotes a hydrogen or halogen atom or alkyl or alkoxy group, and n stands for an integer of 0-3.
摘要:
Air cleaner for a motorcycle is disposed in an internal space of a hollow fairing of the motorcycle, and is communicatively connected with a carburetor of an engine of the motorcycle through a conduit pipe.
摘要:
There is provided a machining apparatus in which movement of a machining point is a little, restriction on the machining operation of an articulated robot is a little and movement of a worker for the teaching operation is a little. The machining apparatus has an articulated robot which is controlled in attitude according to a teaching operation and has a catch instrument for catching a workpiece at an arm tip thereof, and a machining unit equipped at a fixed portion located within an arm reachable zone of the articulated robot, wherein the machining unit has a working tool having a profiling portion where a machining target portion of the workpiece caught by the catch instrument of the articulated robot is pressed according to the attitude control of the articular robot, and a floating mechanism that pushes the working tool in a press direction of the workpiece.
摘要:
An ultrasonic trimming method is composed of steps, driving a cutter blade having a flat plate shape and supported by an arm at an end of an articulated robot via an ultrasonic oscillator, the cutter blade being driven by the arm while the cutter blade is ultrasonically vibrated; cutting a workpiece secured by a workpiece securing portion; and during, operation for cutting, moving the cutter blade held attached to the articulated robot to the position at where the cutting edge is brought into contact with the grindstone, maintaining the cutter blades attitude such that a plane containing the cutting edge thereof contacts the grindstone, and grinding the cutter blade by pressing the cutter blade against a grinding member by the arm while the cutter blade is ultrasonically vibrated, the grinding member being disposed within a movable range of the cutter blade driven by the articulated robot.
摘要:
There is provided a process for stereoselectively producing E-form of 3-acyloxyacrylonitrile compound (3) or Z-form which comprises reacting 3-oxopropionitrile compound (1) with an acid chloride (2), characterized in that the reaction is conducted with removal of hydrogen chloride, or by using an organic base or an inorganic base, to thereby regulate the stereostructure of the product; a process for producing the compound (1) characterized by reacting acetonitrile compound (5) with an aromatic ester compound (6) by use of an alkali metal alkoxide in a hydrocarbon solvent while removing alcohol formed as a by-product by azeotropic distillation in a separating tank; and a process for isomerizing E-form of 3-acyloxyacrylonitrile compound to Z-form thereof by use of an organic base.
摘要:
An image forming apparatus is composed of a main body, an image forming portion provided in the main body to form an image on a sheet, a top receiving tray provided on a top of the main body to load the sheet on which the image is formed in the image forming portion so as to be visible from the top of the main body, a side receiving tray provided at a side of the main body and under the top receiving tray to load the sheet on which the image is formed in the image forming portion with a maximum sheet loading amount more than the top receiving tray, and a control unit to control to select one of the top receiving tray and the side receiving tray as a discharge destination for the sheet according to whether or not a number of the output sheets outputted from the image forming portion exceeds a prescribed threshold value.
摘要:
An optical disk device capable of increasing access speed and an image pickup device having such an optical disk device. In a region at the inside of an optical disk where the rotational speed of the spindle motor reaches its limit, a CAV mode is used for access, while in a region at the outside of the optical disk where a frequency band of an RF signal processor reaches its limit, a CLV mode is used for access. High-speed access to a maximum extent in a range of performance limits of the spindle motor and the RF signal processor is achieved. A retry feature retries failed access attempts to the optical disk when access failure is determined and a controller judges whether or not a defect of the optical disk has caused the access failure. The controller further judges if the predetermined cause of the access failure repeatedly occurs in a predetermined nearby range on the optical disk.
摘要:
Certain embodiments provide an image forming apparatus including: an image processing unit; a printer; a memory configured to store an adjustment value; an operation panel configured to receive a change for the adjustment value according to a user input; an adjuster configured to change, according to input information from the operation panel, the adjustment value from a first value to a second value; and a print controller configured to adjust a position of an image according to the second value and cause the printer to print a numerical value character string representing the second value together with a test pattern.
摘要:
There is provided a novel process for producing an indole derivative which comprises cyclizing 2-nitrobenzylcarbony compound in the presence of a catalyst comprising a Group VIII metal of the Periodic Table, characterized by conducting the cyclization in a gas atmosphere containing carbon monoxide. The process enables an indole compound to be selectively produced in a high yield from 2-nitrobenzylcarbonyl compound, and hardly yields an indoline compound as a reduction by-product that has been a problem in the catalytic hydrogenation method employing a noble metal catalyst. The indole derivative produced by the present process is useful for various fine chemical intermediates including compounds and physiologically active substances such as pharmaceuticals and agrochemicals.