Abstract: A cleaning device for an image forming apparatus in which a shock generation device is provided for imparting an impact force to a cleaning blade in an axial direction of a photoconductive member in order to prevent an edge portion of the cleaning blade from accumulating debris such as minute paper powder and toner, and thereby maintain a high quality image. The cleaning device can be controlled so that operation of the shock generation device for providing an impact force to the cleaning blade starts simultaneously as revolution of a photoconductive member starts, such that the foreign materials are effectively removed from a cleaning blade.

Abstract: An expansion memory is used in a configuration of a first, second or third expansion memory. The first expansion memory is an expanded memory according to the EMS (Expanded Memory Specification) system which is accessed by a CPU through a window. The second memory (extended memory) is allocated within a memory address space so that it is accessed directly by the CPU. The third expansion memory is a combination of the first and second expansion memories. An operator specifies the capacities of the first and second expansion memories from a keyboard. The CPU determines from the entered capacity of the expansion memory that the extension memory is to be arranged in one of the first to third configurations and with what capacity so as to output control information to an expansion memory arrangement setting device. The expansion memory arrangement setting device responds to the control information to arrange the expansion memory in the specified configuration and capacity.

Abstract: A CPU to be operable in at least first and second modes is used to execute a resume processing program set to be executed only in the first mode. In the case where resume processing is carried out if the power supplied from a power source is cut off when the CPU is operating in the second mode, the second mode is saved in a backup RAM, and the CPU is set to operate in the first mode in which the resume processing program can be executed. Upon restoration of the power source, restoring procedure is carried out. After the restoring procedure is completed, the CPU is set to operate in the second mode saved in the backup RAM, and resumes the interrupted processing.

Abstract: A register is provided for storing a key selection data indicating which key is depressed. A keyboard controller sets the key selection data to the register in response to the depression of the key. A timer interrupts a CPU at a predetermined interval. Each time being interrupted, the CPU refers the register to recognize which key is depressed and and performs switching of a hardware status if the key selection data indicates that a key assigned to switch the hardware status is depressed.

Abstract: This invention provides a process for concentration and separation of an eicosapentaenoic acid ester comprising:(1) a step in which a solution, in a nonpolar solvent, of a mixture of fatty acid esters containing an eicosapentaenoic acid ester is allowed to contact with a zeolite, so as to allow said eicosapentaenoic ester to be adsorbed on said zeolite;(2) a step in which said zeolite is allowed to contact with a nonpolar solvent, so as to desorb impurities; and(3) a step in which said zeolite is allowed to contact with a polar solvent, so as to allow said eicosapentaenoic acid ester to be desorbed.This process makes it possible to obtain a highly pure eicosapentaenoic acid ester on a commercial scale.

Abstract: A vehicle suspension system includes an arm member whose outer end is connected to a wheel and whose inner end is connected to the vehicle body by way of front and rear rubber bushings at positions spaced from each other in the longitudinal direction of the vehicle body so that the arm member can vertically rotate relative to the vehicle body. Each of the front and rear rubber bushings has an outer tubular member which is substantially cylindrical and extends in the longitudinal direction of the vehicle body, an inner tubular member which is received in the outer tubular member substantially coaxially therewith, and a rubber member interposed between the inner and outer tubular member. One of the inner and outer tubular members is connected to the vehicle body and the other is connected to the suspension arm.

Abstract: A cleaning device for use in an electrophotographic copier, facsimile apparatus or similar image recorder for cleaning a photoconductive element to remove a toner which remains on the photoconductive element after image transfer. If the temperature of the photoconductive element is lower than 35 degrees centigrade, a cleaning blade is held in pressing contact with the photoconductive element after an image recording operation. If the temperature is 35 degrees centigrade or higher, the blade is released from the photoconductive element upon the lapse of a predetermined period of time after a copying operation.

Abstract: This invention provides a method of concentrating and separating .gamma.-linolenic acid esters and/or arachidonic acid esters characterized in that a fatty acid ester mixture containing .gamma.-linolenic acid ester and/or arachidonic acid ester is brought in contact with crystalline aluminosilicate zeolites to make adsorption and desorption. According to this invention, high purity .gamma.-linolenic acid and/or arachidonic acid ester(s) may be obtained on industrial scale.

Abstract: A sheet for water base ink recording comprises a backing substrate including a surface layer obtained by ultraviolet or radiation curing of a composition composed mainly of an ultraviolet or radiation curing type resin starting from a natural high-molecular substance and, optionally, containing an ultraviolet or radiation curing type antistatic agent.

Abstract: A cross polarization compensation system, in which an input elliptically polarized wave is converted, by a first rotatable differential phase shifter having a phase shift of 90.degree. or less than 90.degree., into an elliptically polarized wave defined by.vertline..alpha..vertline.=.vertline.cot.sup.-1 .gamma..vertline.(where .alpha. is the tilt angle of an ellipse indicative of the elliptically polarized wave relative to a predetermined reference direction and .gamma. is the axial ratio for the ellipse), and then the phase delay or advance plane of a second rotatable differential phase shifter having a phase shift of the ellipse indicative of 90.degree. is disposed in alignment with the major axis of the converted elliptically polarized wave, thereby to obtain a linearly polarized wave having electric fields components of a desired direction.

Abstract: A cross polarization compensating system, in which two elliptically polarized waves of opposite polarities are applied to a cascade connection of two successively connected rotatable 90.degree. phase shifters and an Orthomode (Trademark) transducer. Two cross polarized wave components of the two elliptically polarized waves are detected from the two perpendicularly intersecting output terminals of the Orthomode (Trademark) transducer. Two in-phase components of the same phase as their co-polarized components of the two cross-polarized wave components and two orthogonal components each having a phase difference of 90.degree. from corresponding one of the co-polarized waves of the two cross-polarized wave components are detected from the two output terminals of the Orthomode (Trademark) transducer.