An example laser assembly for a laser printer may include a plurality of lasers to emit respective photons; a prism to redirect the respective laser beams emitted from the plurality of lasers toward a collimator lens of the laser printer to generate a photon beam; and one or more processors to: determine a timing schedule for individually activating the plurality of lasers based on a resolution setting of the laser printer, and when printing at a resolution corresponding to the resolution setting, control activation of each of the plurality of lasers to emit the respective photons according to the timing schedule to form the photon beam.

A drawing system according to an embodiment of the present disclosure includes a light source section and a scanning section. The light source section generates a plurality of laser light beams having wavelengths that are different from each other and each correspond to an absorption wavelength of a photothermal conversion agent included in a recording medium. The scanning section scans a surface of the recording medium with the plurality of laser light beams in a state in which irradiation spots of the plurality of laser light beams are arranged side by side at predetermined intervals in a direction orthogonal to or obliquely intersecting with a scanning direction of the plurality of laser light beams.

An optical scanning device has a housing body and an upper lid. The upper lid is formed at the end part thereof with a plurality of engagement holes, the housing body is provided at the sidewall thereof with a plurality of upper lid engaging projecting parts that project outward from a housing and are engaged with the engagement holes, an input gear is held to an end part of one side or the other side of the upper lid in a predetermined direction, and the plurality of upper lid engaging projecting parts are formed such that amounts of projecting outward from the housing are increased as the plurality of upper lid engaging projecting parts are positioned at a side near the input gear in the predetermined direction.

Systems, articles and methods to provide lens shading color correction using block matching are disclosed. Example processor systems disclosed herein include memory to store first shade correction data. Disclosed example processor systems also include processor circuitry to cluster blocks of an image into at least one cluster based on a criterion, process the at least one cluster to determine at least one modification parameter, modify the first shade correction data with the at least one modification parameter to determine second shade correction data, and correct a lens shade effect associated with the image based on the second shade correction data.

An example laser assembly for a laser printer may include a plurality of lasers to emit respective photons; a prism to redirect the respective laser beams emitted from the plurality of lasers toward a collimator lens of the laser printer to generate a photon beam; and one or more processors to: determine a timing schedule for individually activating the plurality of lasers based on a resolution setting of the laser printer, and when printing at a resolution corresponding to the resolution setting, control activation of each of the plurality of lasers to emit the respective photons according to the timing schedule to form the photon beam.

An optical scanning device has a housing body and an upper lid. The upper lid is formed at the end part thereof with a plurality of engagement holes, the housing body is provided at the sidewall thereof with a plurality of upper lid engaging projecting parts that project outward from a housing and are engaged with the engagement holes, an input gear is held to an end part of one side or the other side of the upper lid in a predetermined direction, and the plurality of upper lid engaging projecting parts are formed such that amounts of projecting outward from the housing are increased as the plurality of upper lid engaging projecting parts are positioned at a side near the input gear in the predetermined direction.

An optical scanning device includes a housing having first projecting bosses (46a) to (46d) and second projecting bosses (48a) to (48d) which are able to fix a first driving substrate (331) and a second driving substrate (332), respectively. The second projecting bosses (48a) to (48d) are arranged inward from the first projecting bosses (46a) to (46d) in a predetermined direction, the second substrate (332) is formed so as not to overlap the first projecting bosses (46a) to (46d) when viewed from a height direction of the second projecting bosses (48a) to (48d) in a state of being fixed to the second projecting bosses (48a) to (48d), and heights of the second projecting bosses (48a) to (48d) are lower than those of the first projecting bosses (46a) to (46d).

A first receiving recess (44d) and a second receiving recess (44e) are formed on a surface of the housing, on which a pair of image forming lenses (47) are placed, to receive a first temperature sensor (101a) and a second temperature sensor (101b), and are formed in positions, in which thermal deformation characteristics of the housing are approximately identical at one side and the other side of a first straight line K1, while interposing the first straight line K1 therebetween.

A system, article, and method to provide lens shading color correction using block matching.

An image recording apparatus includes: a laser emitting device configured to emit laser beams emitted from a plurality of laser light-emitting elements; an optical fiber array including a plurality of optical fibers provided corresponding to the laser light-emitting elements and configured to guide the laser beams emitted from the laser light-emitting elements to a recording object that relatively moves with respect to the laser emitting device, laser emitting portions of the respective optical fibers being arrayed in an array form in a predetermined direction; and an image recording unit configured to control the laser emitting device so as to irradiate the recording object which relatively moves with respect to the laser emitting device in a direction different from the predetermined direction, with laser beams via the optical fiber array, to heat the recording object and record an image.