Bearing structure for supporting a photoconductive element of an image forming apparatus
AssigneeRicoh Company, Ltd.
InventorMasafumi Toyofuku
Life of this patent
Estimating the term…
Abstract
A structure for supporting a photoconductive element included in an image forming apparatus. The shaft of the photoconductive element is supported by two adjoining bearings. One of the bearings is pressed against a framework or a slider by a leaf spring to be thereby fixed in place. The other bearing is movable relative to the framework or the slider and pressed against the shaft by another spring in the same direction as the first-mentioned bearing. The structure prevents the shaft and, therefore, the photoconductive element from tilting or shaking to thereby prevent an exposing position on the element from being changed.
Claims11
A structure for supporting a photoconductive element included in an image forming apparatus, comprising:
- a shaft mounting said photoconductive element thereon and journalled to a framework of said apparatus;
- a first bearing supporting said shaft and fixed in place by being pressed against said framework;
- a second bearing supporting said shaft and adjoining said first bearing, said second bearing being movable relative to said framework and pressed against said shaft in a same direction as said first bearing;
- and
- pressing means for pressing against said first and second bearings such that said pressing means presses upon said first bearing to press the first bearing against said framework, and said pressing means presses upon said second bearing to press the second bearing against said shaft.
A structure for supporting a photoconductive element included in an image forming apparatus, comprising:
- a shaft mounting said photoconductive element thereon and journalled to a framework of said apparatus;
- a slider movable relative to said framework and adjustable in position;
- a first bearing supporting said shaft and fixed in position by being pressed against an inner surface of said slider;
- and
- a second bearing supporting said shaft and adjoining said first bearing, said second bearing being movably received in said slider and pressed against said shaft in the same direction as said first bearing.
A structure for supporting a photoconductive element included in an image forming apparatus, comprising:
- a shaft mounting said photoconductive element thereon and journalled to a framework included in said apparatus;
- a slider movable while holding a single bearing which rotatably supports said shaft;
- a case supporting said slider in a movable manner;
- an adjusting screw threaded into a wall of said case located at an operating side;
- and
- an adjusting block received in said case to be movable in a direction intersecting a direction in which said slider is movable, and slidably contacting said slider;
- surfaces of said adjusting block and said slider which contact each other being inclined relative to both of said direction of movement of said slider and a direction in which said adjusting block is movable.
Dependencies are inferred from the claim text.