摘要:
A developing apparatus having a rotatable developing sleeve having an elastic layer on the surface thereof for carrying a mono-component magnetic developer and urged against a photosensitive drum to develop an electrostatic image formed on the drum with the developer, a non-rotary magnet provided inside the sleeve for magnetically attracting the developer to the sleeve, and a blade having an abutting portion abutting against the sleeve in a counter direction for regulating the amount of the developer on the sleeve, a step portion spaced apart from the abutting portion, and a separating portion provided upstream of the step portion in the rotation direction of the sleeve, wherein the surface of the sleeve to which the separating portion is opposed includes a position satisfying |Br|/|B|≧0.5, where B(G): the magnitude of magnetic flux density formed on the surface of the sleeve, and Br(G): a component of the magnetic flux density in a direction perpendicular to the surface of the sleeve.
摘要:
A developing apparatus having a developing sleeve provided with an elastic layer on its surface, and for developing an electrostatic image formed on an image bearing member with a mono-component magnetic toner having a mean degree of circularity of 0.965 or greater, a magnet provided in the developing sleeve, and a blade for regulating the amount of the developer carried on the developing sleeve satisfies the expressions |Br|/|B|≧0.5 and Nsb/(Bs×R)≦0.5, where B [G] is magnetic flux density formed on the surface of the developing sleeve by the magnet at the contact position between the blade and the developing sleeve, Nsb [mm] is the contact width between the blade and the developing sleeve, Br [G] is a component of magnetic flux density B [G] in a direction perpendicular to the surface of the developing sleeve, Bs [rad] is a half value width of the perpendicular component of the magnetic flux density of the nearest one of the magnetic poles of the magnet to the contact position on the surface of the developing sleeve, and R [mm] is the radius of the developing sleeve.
摘要:
A developing apparatus having: a rotatable developing roller for developing an electrostatic image with a mono-component magnetic developer at a developing position; a non-rotary magnet roll inside the roller; a blade for regulating the amount of the developer at a developer regulating position; and an abutting member abutting against the roller downstream of the developing position and upstream of the developer regulating position, wherein the following expressions are satisfied: |Vs|>|Vdev|, |Br|/|B|≦0.5, and L/(BH×R)≧0.1, where |Vdev|: a DC component Vdev of a voltage applied to the roller, |Vs|: a DC component Vs of a voltage applied to the member, B(G): the magnetic flux density formed on the surface of the roller at the abutting position by the magnet roll, Br(G): the component of the magnetic flux density B(G) perpendicular to the surface of the roller, and L(mm): the abutting width between the roller and the member, BH(rad): the half value width of the component Bθ(G) horizontal to the surface of the roller, and R(mm): the radius of the roller.
摘要翻译:一种显影装置,具有:用于在显影位置用单组分磁性显影剂显影静电图像的可旋转显影辊; 辊内的非旋转磁辊; 用于调节显影剂调节位置处的显影剂量的刀片; 和抵抗构件抵接在显影位置下游和显影剂调节位置上游的滚子,其中满足以下表达式:| Vs |> | Vdev |,| Br | / | B | <= 0.5和L / (BHxR)> = 0.1,其中| Vdev |:施加到辊的电压的DC分量Vdev | Vs |:施加到部件的电压的DC分量Vs,B(G):形成的磁通密度 在磁辊的邻接位置的辊表面上,Br(G):垂直于辊表面的磁通密度B(G)的分量,L(mm): 辊和构件BH(rad):水平面与辊表面的部件Btheta(G)的半值宽度,R(mm):辊的半径。
摘要:
A developing apparatus having a rotatable developing sleeve having an elastic layer on the surface thereof for carrying a mono-component magnetic developer and urged against a photosensitive drum to develop an electrostatic image formed on the drum with the developer, a non-rotary magnet provided inside the sleeve for magnetically attracting the developer to the sleeve, and a blade having an abutting portion abutting against the sleeve in a counter direction for regulating the amount of the developer on the sleeve, a step portion spaced apart from the abutting portion, and a separating portion provided upstream of the step portion in the rotation direction of the sleeve, wherein the surface of the sleeve to which the separating portion is opposed includes a position satisfying |Br|/|B|≧0.5, where B(G): the magnitude of magnetic flux density formed on the surface of the sleeve, and Br(G): a component of the magnetic flux density in a direction perpendicular to the surface of the sleeve.
摘要:
A developing apparatus having a developing sleeve provided with an elastic layer on its surface, and for developing an electrostatic image formed on an image bearing member with a mono-component magnetic toner having a mean degree of circularity of 0.965 or greater, a magnet provided in the developing sleeve, and a blade for regulating the amount of the developer carried on the developing sleeve satisfies the expressions |Br|/|B|≧0.5 and Nsb/(Bs×R)≦0.5, where B (G) is magnetic flux density formed on the surface of the developing sleeve by the magnet at the contact position between the blade and the developing sleeve, Nsb (mm) is the contact width between the blade and the developing sleeve, Br (G) is a component of magnetic flux density B (G) in a direction perpendicular to the surface of the developing sleeve, Bs (rad) is a half value width of the perpendicular component of the magnetic flux density of the nearest one of the magnetic poles of the magnet to the contact position on the surface of the developing sleeve, and R (mm) is the radius of the developing sleeve.
摘要:
A developing apparatus includes a developing roller for developing an image with a developer; a non-rotary magnet roll inside the roller; a blade; and an abutting member abutting against the roller, wherein the following expressions are satisfied: |Vs|>|Vdev|, |Br|/|B|≦0.5, and L/(BH×R)≧0.1, where |Vdev|: a DC component Vdev of a voltage applied to the roller, |Vs|: a DC component Vs of a voltage applied to the member, B(G): the magnetic flux density formed on the surface of the roller at the abutting position by the magnet roll, Br(G): the component of the magnetic flux density B(G) perpendicular to the surface of the roller, and L(mm): the abutting width between the roller and the member, BH(rad): the half value width of the component Bθ(G) horizontal to the surface of the roller, and R(mm): the radius of the roller.
摘要翻译:显影装置包括用显影剂显影图像的显影辊; 辊内的非旋转磁辊; 刀片 和抵抗构件,其中满足以下表达式:| Vs |> | Vdev |,| Br | / | B | <= 0.5和L /(BHxR)= 0.1,其中| Vdev | 施加到辊的电压的直流分量Vdev | Vs |:施加到构件的电压的DC分量Vs,B(G):形成在滚子的表面上的磁通密度 磁辊,Br(G):垂直于辊表面的磁通密度B(G)的分量,L(mm):辊与构件之间的抵接宽度,BH(rad):半 部件Btheta(G)的水平面与辊表面的值的宽度,R(mm):辊的半径。
摘要:
A charging member for charging a member to be charged and an image forming apparatus provided with the same have electrically conductive particles and an electrically conductive particle bearing member having elasticity and bearing the electrically conductive particles thereon, and the degree of cohesion of the electrically conductive particles is 0.1 to 85%. Thereby, the non-uniformity of a halftone image peculiar to particle charging can be improved.
摘要:
A vehicle drive device comprising: an engine, a first electric motor, and a second electric motor disposed on a first axis; a first axis output portion outputting power of the first axis; a second axis input portion that is an input portion of a second axis to which power from the first axis output portion is input, the second axis being parallel to the first axis; a second axis output portion outputting power of the second axis; a transmission changing speed between the second axis input portion and the second axis output portion, the transmission being disposed on the second axis; and a third axis input portion that is an input portion of a third axis to which power from the second axis output portion is input, the third axis being parallel to the first axis, the first axis output portion, the second axis input portion, the second axis output portion, and the third axis input portion all being disposed between the first electric motor and the second electric motor in a direction of the first axis, the transmission including at least a first planetary gear device and a second planetary gear device, the second axis input portion and the second axis output portion being disposed between the first planetary gear device and the second planetary gear device in a direction of the second axis.
摘要:
A vehicle using a first MG, a second MG, and an engine as drive sources includes an electric oil pump, a mechanical oil pump driven by power of the engine, and a hydraulic circuit. The hydraulic circuit includes first oil passages for supplying oil to the first MG, a second oil passage for supplying oil to the second MG, a switch-over valve capable of switching over states of communication of the first oil passage, and a switch control valve that outputs pilot hydraulic pressure to the switch-over valve. States of the switch-over valve are switched over in accordance with hydraulic pressure from the switch control valve and hydraulic pressure from the mechanical pump.
摘要:
A control device of a vehicle includes a first electric motor; a differential mechanism having a rotating element coupled to the first electric motor, a rotating element that is an output rotating member coupled to drive wheels in a power transmittable manner, and a rotating element coupled to a non-rotating member by actuation of a lock mechanism; and a second electric motor coupled to the drive wheels in a power transmittable manner. During motor running for running with output torques from the first electric motor and the second electric motor used together in an actuated state of the lock mechanism, a drive torque shared by the first electric motor is made smaller in a requested drive torque when a rotation speed of a pinion making up the differential mechanism is higher.