Abstract:
Methods and systems are disclosed for determining at least one actuation characteristic of an imaging device. For example, one method includes determining a target distance to move a lens by an actuator to focus a scene on an image sensor, where moving the lens by the actuator causes an associated lens vibration having at least one actuation characteristic, determining a scan sequence having a plurality of successive measurements, each measurement having at least a first measurement parameter and subsequent measurement parameter, each measurement parameter including at least one step and at least one time delay, moving the lens the target distance for each successive measurement based on the measurement parameters of each successive measurement, measuring a performance indicator of each successive measurement, and determining at least one actuation characteristic based on the first measurement parameter of the measurement having the highest performance indicator.
Abstract:
Methods and systems are disclosed for damping unwanted vibrations or ringing of a lens in an imaging device. For example, one method includes determining a target distance to move a lens, and dividing the target distance into multiple steps having at least a first step and a subsequent step, moving the lens, via an actuator, by the first step, thereby causing a first vibration, retrieving a damping parameter indicative of a time delay, the damping parameter being based on at least one characteristic of the actuator and the number of steps, and repeating said moving the lens at least one subsequent step after delaying the subsequent step by one of the damping parameters, each moving the lens a subsequent step causing a subsequent vibration, and the damping parameters affecting the vibration such that the first and subsequent vibrations at least in part modify each other to lower overall vibration.
Abstract:
An image forming unit is accommodated in a space defined by a frame body. An image reader is disposed above the image forming unit. A first supporting member is secured between an upper portion of the frame body and a bottom portion of the image reader and configured to support the image reader to the frame body in a cantilever manner. A second supporting member is secured on an upper portion of the frame body and configured to receive a bottom portion of the image reader supported by the first supporting member in a cantilever manner.
Abstract:
An image forming apparatus includes: an image forming apparatus main body; an ejection portion; a structure; a mounting mechanism; and a supporting member. The image forming apparatus main body has a cutout continuous with a space, the cutout being formed in such a manner as to straddle a surface of the image forming apparatus main body on a side thereof on which a recording medium is retrieved from the ejection portion and a surface of the image forming apparatus main body on one side thereof in a direction of a rotary shaft. An end of the supporting member being located at a position more distant than one end from the surface of the image forming apparatus main body on the side thereof on which the recording medium is retrieved from the ejection portion, in a state in which the structure is located in a second position.
Abstract:
A read module includes: a light source that applies light to an original to read an image; a photoelectric conversion section that converts reflected light from the original into an image signal of the image; and a connector to be electrically connected to a controller connector in a controller. The connector has a plurality of terminals placed side by side in a predetermined direction. The plurality of terminals includes an image signal output terminal section that outputs the image signal to the controller and a power terminal section that inputs electric power for lighting the light source supplied from the controller to the read module. The power terminal section is placed in the proximity of one end of the plurality of terminals in the predetermined direction thereof. The image signal output terminal section is placed in the proximity of an opposite end in the predetermined direction thereof.
Abstract:
A scan guide upon image reading by an image reading apparatus having a driving mechanism constructed by a rack and a pinion gear is stably performed. The pinion gear is provided on a downstream side of two contact portions which are in contact with a guide rail of the reading scan. A straight line drawn in a pressure angle direction from a contact point of the rack and the pinion gear upon reading and scanning passes between the two contact portions with the guide rail, so that a stable positional relation between a driving force of the gear and the contact portions is obtained. The stable guiding can be performed.
Abstract:
In an exposure unit including: a laser scanning unit emitting a multiple number of beams; a polygon mirror for deflecting the multiple beams by reflection with the same facet; an optical system including optical elements for leading the beams correspondingly to a multiple number of photoreceptor drums laid out along an auxiliary scan direction, the bottom of a casing of the exposure unit to which the polygon mirror and the optical elements arranged along the directions of the beams emitted from the polygon mirror are attached is constructed so that the attachment portions of individual optical elements for each beam are differentiated in thickness from the areas where no attachment portion is formed.
Abstract:
A beam deflector including a driving source for providing a rotation force, a beam deflection unit rotatably arranged on the driving source to deflect and scan an incident beam, and a cover member configured to cover the driving source and the beam deflection unit. The cover member has an aluminum foam layer located thereon to reduce vibration and noise occurring when the driving source and the beam deflection unit rotate.
Abstract:
An image forming apparatus includes a supporting member extended between first and second frames and supporting an exposure unit, wherein the primary resonance frequency of the supporting member is higher than that of a mirror provided in the exposure unit, whereby the supporting member is prevented from being caused to resonate by oscillation generated in the driving system of the apparatus main body to thereby prevent the mirror from oscillating.
Abstract:
A system, method and apparatus for translating a carriage from one position to another position utilizing an injection molded plastic translating system are disclosed. In a preferred embodiment, an injection molded plastic translating system is utilized within a flatbed scanner to translate a scanhead carriage along a desired path during the scanning process. The plastic translating system is formed utilizing gas injection molding techniques, resulting in a plastic translating system that does not warp. Further, the plastic translating system is smooth to allow the scanhead carriage to be translated with substantially no vibration. Also, the plastic translating system of a preferred embodiment results in very little wear after many translations of the carriage. Because the plastic translating system of a preferred embodiment may be molded as part of the base of the scanner or as part of a platform that is utilized within the scanner, the total number of parts utilized within the scanner is reduced and the total cost for assembling such scanner is reduced. Moreover, the injection molded plastic translating system disclosed herein may be utilized for many other types of devices that require a component to be translated from one position to another along a desired path.