An optical scanning apparatus includes a deflector for scanningly deflecting a beam; a scanning lens for imaging the beam deflected by the deflector on a surface; a casing for a light source, the deflector and the lens; and an elastic member urging the lens toward the casing along an optical axis. The lens is provided with an abutment at a beam emergent side of the lens, the abutment abutting to the casing, and is provided with a limiting portion at a side opposite from the emergent side, the limiting portion limiting movement in the opposite direction. The elastic member and the limiting portion limits the movement of the lens in the direction opposite to the direction of the lens. When the lens contacts a positioning portion of the casing, a gap is provided between the elastic member and the limiting portion with respect to the direction.

An array of pixels of a solid-state imaging sensor having a rolling shutter is sequentially exposed to capture images from an illuminated target over successive frames for image capture by an imaging reader. The target is illuminated at a peak output power level for a fractional time period of a frame, and is not illuminated for at least a portion of a remaining time period of the frame for increased energy efficiency. Only a sub-array of the pixels is exposed during the fractional time period in which the target is being illuminated at the first output power level.

An image-reading apparatus includes a housing having an opening, an image capturing unit that captures an image of a medium disposed at the opening, a plurality of light sources that are disposed inside the housing and emit light toward the opening, and an angle holding mechanisms. Two inclined cover units of the housing can be switched between an opened state and a folded state. Two coupling cover units of the housing are deformed with respect to the two inclined cover units when the two inclined cover units are in the folded state, and the angle holding mechanisms hold the two inclined cover units so that ends of the two inclined cover units on the opening side are separated away from each other when the two inclined cover units is in the opened state.

An image capturing method includes steps of providing an image capturing device, obtaining a captured image, a first displacement data and a second displacement data, calculating to obtain an angle deflection data according to the first displacement data and the second displacement data, calculating to obtain a central point real coordinate corresponding to a central point of the image capturing device, calculating to obtain an initial point real coordinate corresponding to an initial point of the captured image and a finish point real coordinate corresponding to a finish point of the captured image, and determining a real coordinate system according to the central point real coordinate, the initial point real coordinate and the finish point real coordinate and correspondingly outputting the captured image with the real coordinate system so as to obtain a corrected terminal image. As a result, the terminal image is similar to the original image.

A light-emitting device for use in an image forming apparatus includes an apparatus body; a door disposed on and openably closable relative to the apparatus body; a lens mounted on the door; a light-emitting element that lights up the lens with light; and a bracket disposed on the apparatus body, configured to support the light-emitting element. The bracket is slidable in a direction in which the light-emitting element emits light. In a state in which the door is closed relative to the apparatus body, the bracket contacts at least one of a part of the door and a part of the lens, further movement of the bracket in the slidable direction is obstructed, and the light-emitting element and the lens are positioned adjacent to each other.

A dial-up communication device, method, and computer-readable medium, the dial-up communication device including a first device that includes first circuitry configured to control performance of dial-up communication and acquire signal information of a received signal during the dial-up communication, and a second device that is separate from the first device, the second device including a speaker and second circuitry, the second circuitry being configured to receive the acquired signal information from the first device, determine sound information based on the acquired signal information, and control outputting of a sound, via the speaker, based on the determined sound information.

A method for controlling at least one printer engine is disclosed, the at least one printer engine having plural trays, and wherein each of the plural trays is aligned independently for imaging on a sheet of print medium. The method includes obtaining information according to first conditions in which each of the plural trays has been aligned; obtaining information according to a second condition in which the at least one printer engine executes a print job; judging differences between each of the first conditions and the second condition; selecting a tray for the print job based on the judged differences; and instructing the print engine to execute the print job using the selected tray.

An image reading apparatus includes a housing unit including a support table on which an original document is supported, a reading member disposed inside the housing unit to read the original document, a power source unit disposed adjacent to the housing unit while being separated by at least one wall, the power source unit accommodating a power circuit, and a sending member that sends air inside the power source unit into the housing unit through an opening formed in the wall.

Provided is a medium sensing apparatus. The medium sensing apparatus comprises a first frame disposed on a transfer path of a medium, the first frame having a plurality of first sensor grooves, a second frame facing the first frame, the second frame having a plurality of second sensor grooves, a plurality of first contact image sensors disposed in the plurality of first sensor grooves, respectively, and a plurality of second contact image sensors disposed in the plurality of second sensor grooves, respectively. At least one of the plurality of first sensor grooves and at least one of the plurality of second sensor grooves are disposed to partially overlap with each other.

An image reading apparatus includes a housing unit including a support table on which an original document is supported, a reading member disposed inside the housing unit to read the original document, a power source unit disposed adjacent to the housing unit while being separated by at least one wall, the power source unit accommodating a power circuit, and a sending member that sends air inside the power source unit into the housing unit through an opening formed in the wall.