Image forming apparatus
First Claim
1. An image forming apparatus comprising:
- a light output unit that outputs light;
a light scanner that has a light reflection part for reflecting the light output from the light output unit, the light reflection part being rotatable around a first axis and a second axis that are orthogonal to each other, and the light scanner being operable to scan the light reflected by the light reflection part respectively around the first axis and the second axis;
a scanner rotating unit that rotates the light scanner around a predetermined axis line while keeping a relative positional relation between an intersection of the first axis and the second axis and the light output unit constant; and
a support part that supports the light output unit and the light scanner while maintaining a relative positional relation to each other, the scanner rotating unit being operable to rotate the light output unit and the light scanner integrally with the support part;
wherein the light scanner has;
a movable unit that is displaceable and includes the light reflection part,four connection parts connected to the movable unit, anda scanner support part that supports the four connection parts,the four connection parts are provided at intervals of 90 degrees in an outer circumference of the movable unit along a circumferential direction in a plan view of the movable unit, andwherein each of the connection parts has;
a rotatable drive unit, anda shaft part that connects the movable unit and the drive unit and bendingly deforms in a thickness direction of the movable unit by rotation of the drive unit, andthe respective shaft parts are independently bendingly deformed, and thereby, the movable unit rotates around the respective axes of the first axis and the second axis.
1 Assignment
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Accused Products
Abstract
An image forming apparatus has a light output unit, a light scanner that has a light reflection part reflecting the light from the light output unit, rotates the light reflection part around two axes, and scans with the light reflected by the light reflection part, and a scanner rotating unit the rotates the light scanner around a predetermined axis line while keeping a relative positional relation between an intersection of the two rotation axes and the light output unit constant, and the light scanner has a movable unit including the light reflection part, four connection parts provided at intervals of 90 degrees in an outer circumference of the movable unit, each of the connection parts has a shaft part that connects the movable unit and the drive unit and independently and bendingly deforms each of the shaft parts, and thereby, the movable unit rotates around the two axes.
26 Citations
19 Claims
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1. An image forming apparatus comprising:
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a light output unit that outputs light; a light scanner that has a light reflection part for reflecting the light output from the light output unit, the light reflection part being rotatable around a first axis and a second axis that are orthogonal to each other, and the light scanner being operable to scan the light reflected by the light reflection part respectively around the first axis and the second axis; a scanner rotating unit that rotates the light scanner around a predetermined axis line while keeping a relative positional relation between an intersection of the first axis and the second axis and the light output unit constant; and a support part that supports the light output unit and the light scanner while maintaining a relative positional relation to each other, the scanner rotating unit being operable to rotate the light output unit and the light scanner integrally with the support part; wherein the light scanner has; a movable unit that is displaceable and includes the light reflection part, four connection parts connected to the movable unit, and a scanner support part that supports the four connection parts, the four connection parts are provided at intervals of 90 degrees in an outer circumference of the movable unit along a circumferential direction in a plan view of the movable unit, and wherein each of the connection parts has; a rotatable drive unit, and a shaft part that connects the movable unit and the drive unit and bendingly deforms in a thickness direction of the movable unit by rotation of the drive unit, and the respective shaft parts are independently bendingly deformed, and thereby, the movable unit rotates around the respective axes of the first axis and the second axis. - View Dependent Claims (2, 3)
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4. An image forming apparatus comprising:
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a light output unit that outputs light; a light scanner that has a light reflection part for reflecting the light output from the light output unit, the light reflection part being rotatable around a first axis and a second axis that are orthogonal to each other, and the light scanner being operable to scan the light reflected by the light reflection part respectively around the first axis and the second axis; and a scanner rotating unit that rotates the light scanner around a predetermined axis line while keeping a relative positional relation between an intersection of the first axis and the second axis and the light output unit constant, wherein the light scanner has; a movable unit that is displaceable and includes the light reflection part, four connection parts connected to the movable unit, a scanner support part that supports the four connection parts, and the four connection parts are provided at intervals of 90 degrees in an outer circumference of the movable unit along a circumferential direction in a plan view of the movable unit, wherein each of the connection parts has; a rotatable drive unit, and a shaft part that connects the movable unit and the drive unit and bendingly deforms in a thickness direction of the movable unit by rotation of the drive unit and the respective shaft parts are independently bendingly deformed, and thereby, the movable unit rotates around the respective axes of the first axis and the second axis, wherein, given that the two axes orthogonal in the plan view of the movable unit are the X-axis and the Y-axis, the four connection parts have a first connection part and a second connection part opposed in an X-axis direction via the movable unit and a third connection part and a fourth connection part opposed in a Y-axis direction via the movable unit, wherein each of the first connection part and the second connection part has the drive unit provided separately from the movable unit in the X-axis direction, a first shaft part as the shaft part connecting the movable unit and the drive unit and extending in the X-axis direction, and a second shaft part connecting the drive unit and the scanner support part and extending in the Y-axis direction, and wherein each of the third connection part and the fourth connection part has the drive unit provided separately from the movable unit in the Y-axis direction, a first shaft part as the shaft part connecting the movable unit and the drive unit and extending in the Y-axis direction, and a second shaft part connecting the drive unit and the scanner support part and extending in the X-axis direction. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An image forming apparatus comprising:
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a light output unit that outputs light; a light scanner that has a light reflection part for reflecting the light output from the light output unit, the light reflection part being rotatable around a first axis and a second axis that are orthogonal to each other, and the light scanner being operable to scan the light reflected by the light reflection part respectively around the first axis and the second axis; and a scanner rotating unit that rotates the light scanner around a predetermined axis line while keeping a relative positional relation between an intersection of the first axis and the second axis and the light output unit constant, wherein the light scanner has; a movable unit that is displaceable and includes the light reflection part, four connection parts connected to the movable unit, a scanner support part that supports the four connection parts, and the four connection parts are provided at intervals of 90 degrees in an outer circumference of the movable unit along a circumferential direction in a plan view of the movable unit, wherein each of the connection parts has; a rotatable drive unit, and a shaft part that connects the movable unit and the drive unit and bendingly deforms in a thickness direction of the movable unit by rotation of the drive unit, a displacement providing unit that rotates the drive unit, and the respective shaft parts are independently bendingly deformed, and thereby, the movable unit rotates around the respective axes of the first axis and the second axis, and wherein four of the displacement providing parts are provided in correspondence with the four connection parts. - View Dependent Claims (17, 18, 19)
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Specification