摘要:
A developing device includes a casing, a first mixing conveying screw, and a developer removing unit. The casing is able to store toner. The first mixing conveying screw has a shaft arranged to be able to rotate freely in the interior of the casing, and a spiral in a spiral shape formed on the outer circumference portion of the shaft. The developer removing unit has a plurality of spring members arranged to be lined up in the axial direction corresponding to the spiral pitch of the spiral and are able to contact the spiral, and a retaining member that is retained in the casing and retains the plurality of the spring members.
摘要:
A cleaning device according to the present invention has first seals and a second seal adhered so as to partly overlap each other for sealing a space between a housing of the cleaning device and the surface of a photoreceptive member. The first seals include seal bases and a flocked sheet layered on the seal bases. The portion of the seal base where the second seal overlaps is made smaller in thickness than the portion of the seal base where the second seal does not overlap. Therefore, no step is formed in the overlapped portion, thereby preventing toner leakage.
摘要:
A toner replenishing device for an image forming machine has a hopper housing with a toner agitating passageway and a toner carrying passageway, a toner agitator disposed in the toner agitating passageway for agitating recovered toner and fresh toner supplied to the toner agitating passageway and lifting them to the toner carrying passageway, and a toner carrier disposed in the toner carrying passageway for carrying the recovered toner and the fresh toner agitated and lifted by the toner agitator. The toner agitator has a first paddle disposed in a first end part of the toner agitating passageway, and a second paddle disposed on the other end part side of the toner agitating passageway and adjacent to the first paddle. The first paddle has the function of sending the toner to the other end part side of the toner agitating passageway, while the second paddle has the function of sending the toner to the first end part side of the toner agitating passageway.
摘要:
A method for producing a silver halide photographic emulsion, a method for producing thereof, and a light-sensitive material using the same, the method comprising the steps of: (a) producing a host emulsion comprising silver bromide or silver iodobromide tabular grains having an average silver iodide content (I.sub.1 mol %) of the entire silver halide grains of 5 mol % or less, in which 60% or more of the projected area of the entire silver halide grains accounting for tabular grains having an aspect ratio of 3.0 or more; (b) dissolving a periphery of the tabular grains completely with an iodide ion being added to the host emulsion; and then (c) producing final tabular grains by reclaiming a periphery containing silver iodobromide from the region containing the periphery having been completely dissolved.
摘要:
Combinational weighing is carried out firstly by calculating combinations of weight signals from a plurality of weighing devices each weighing a batch of objects to be packaged and selecting a combination having a total weight satisfying a specified criterion with respect to a target value, and secondly by re-checking the weight signals from the weighing devices of the selected combination before discharging the objects therefrom. The value of the difference between the total weights obtained at the time of the combinational calculations and at the re-checking time is stored cumulatively after each cycle of operation, and a new target value is calculated and set after each cycle from many stored difference values from previous cycles in order to improve the work efficiency and the yield at the same time. According to a preferred embodiment, the difference between the weight values obtained at these two times of measurement is cumulatively stored after each cycle for all weighing devices and a new target value is calculated by considering the distributions of past difference values corresponding to the individual weighing devices of the selected combination.
摘要:
A silver halide photographic material contains at least one hydrazine compound of formula (I): ##STR1## where R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents an alkyl group, an aryl group or a heterocyclic group; and R.sub.1 and R.sub.2, R.sub.3 and R.sub.4, R.sub.1 and R.sub.3, and R.sub.2 and R.sub.4 each may be bonded to each other to form a non-aromatic ring; provided that the carbon atom of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 which is directly bonded to a nitrogen atom of the hydrazine core of the compound is not substituted by an oxo group. The material has a high sensitivity and does not tend to fog. After storage, depression of the sensitivity of the material is small.
摘要:
A male shielded electrical connector comprises a metal frame member (3, 30, 300) and a dielectric housing member (6, 60, 600) molded to the metal frame member forming a unitary housing with metal section (5, 50, 500) and a section of housing member (6, 60, 600) forming a male connecting section (4, 40, 400) having a smooth continous exterior surface (4", 40", 400") part of which is metal and the other part is dielectric material.
摘要:
An electrical connector for use in establishing electrical connections to the conductors of a flat cable comprises a first housing member carrying a plurality of terminals each having arms having opposed edges defining a conductor-receiving slot and having pointed extremities for piercing the insulating material of the cable, and a second housing member having a plurality of holes to receive the arms of a respective one of the terminals. The arms of the conductor-receiving portion of each terminal are formed adjacent their free ends with outwardly directed projections which are an interference fit in the associated hole in the second housing member, each arm of each terminal in use engaging the second housing member not only at the projection on the arm but also at a second position adjacent the engagement between the arm and a conductor of the cable received in the slot partially defined by the arm. The second position of engagement between each arm of each terminal and the second housing member serves to relieve the stresses induced in the arms by the engagement between the projections on the arms and the second housing member, this enhancing the contact between the arms and the conductors and ensuring reliable electrical connections.