Abstract: An image forming apparatus includes a photoconductor drum, an exposure device, a development device, and a controller. The exposure device irradiates the photoconductor drum with a light beam and thereby forms an electrostatic latent image. The development device causes toner to adhere to the electrostatic latent image and thereby generates a toner image. The controller controls the exposure device. Further the exposure device includes a polygon mirror, a polygon motor, a mark detector, and an actuator. The polygon mirror is configured to scan the light beam. The polygon motor is configured to rotate the polygon mirror. The mark detector is configured to detect a mark attached to a motor axis of the polygon motor. The actuator is configured to be enabled to move the mark detector. Furthermore, the controller moves the mark detector to a position corresponding to an operation condition of the exposure device using the actuator.

Abstract: A substrate includes a first fixing section and a second fixing section. On the first fixing section, a first terminal of a pair of plate-shaped terminals protruding from a motor is fixed. On the second fixing section, a second terminal of the pair of terminals is fixed. The first fixing section includes a first hole and a second hole. The first hole extends in a second direction, intersecting a first direction extending from the first terminal toward the second terminal. The second hole extends in the second direction, and is located adjacent to the first hole, on an opposite side of the second terminal with respect to the first hole, in the first direction. The first terminal is inserted through one of the first hole and the second hole.

Abstract: In an image forming apparatus, a controller makes a determination of whether or not a person present around the image forming apparatus has been detected by a motion sensor, makes a determination of whether or not a touch gesture has been made on a touch panel, counts, based on results of the determinations, a number of users of the image forming apparatus, a number of touch gestures on the touch panel or an elapsed time since a latest touch gesture on the touch panel, and allows a display device to display the number of users, the number of touch gestures or the elapsed time.

Abstract: An image forming apparatus includes an image forming portion, a fixing unit, a position adjustment mechanism, a number-of-printed-sheets counter, and a control unit. The image forming portion includes an image carrier, a charging unit, an exposure unit, a developing unit, and a transfer member. The fixing unit has a heated rotary member and a pressing member and heats and presses the sheet passing through a fixing nip portion. A position adjustment mechanism adjusts the width-direction position of the sheet parallel to the scanning direction of optical scanning by the exposure unit. Every time the number of printed sheets reaches a predetermined number, the control unit makes the correction unit shift the width-direction position of the sheet by a predetermined amount and changes the start position of scanning by the exposure unit on the image carrier according to the direction and amount of shift.

Abstract: A connector holder that holds and integrates a plurality of connectors, the connector holder including a pressing part, side wall parts, and connecting parts. The pressing part is arranged in a center of the connector holder. The side wall parts are respectively disposed on each of both sides with respect to the pressing part at intervals in the array direction of pins of the connectors that the connector holder holds. The connecting parts respectively connect a lower end portion of the pressing part and a lower end portion of each of the side wall parts disposed on the both sides in the array direction. Holding parts are respectively formed on the both sides in the array direction of the pressing part, the holding parts holding the connectors together with the pressing part, the side wall parts, and the connecting parts.

Abstract: An image forming apparatus includes an image forming portion, a fixing unit, a position adjustment mechanism, a number-of-printed-sheets counter, and a control unit. The image forming portion includes an image carrier, a charging unit, an exposure unit, a developing unit, and a transfer member. The fixing unit has a heated rotary member and a pressing member and heats and presses the sheet passing through a fixing nip portion. A position adjustment mechanism adjusts the width-direction position of the sheet parallel to the scanning direction of optical scanning by the exposure unit. Every time the number of printed sheets reaches a predetermined number, the control unit makes the correction unit shift the width-direction position of the sheet by a predetermined amount and changes the start position of scanning by the exposure unit on the image carrier according to the direction and amount of shift.

Abstract: A fixing cable tie binds electric cables and fixes the electric cables to a mounting plate. The fixing cable tie includes a pair of elastic pieces and a pair of cable ties. The elastic pieces serve as a locking section for fixing the electric cables to the mounting plate, and elastically deform inward by external urging to shrink in diameter. The pair of cable ties binds the electric cables. The pair of cable ties (first cable tie section and second cable tie section) is joined respectively to the pair of elastic pieces.

Abstract: A connector holder that holds and integrates a plurality of connectors, the connector holder including a pressing part, side wall parts, and connecting parts. The pressing part is arranged in a center of the connector holder. The side wall parts are respectively disposed on each of both sides with respect to the pressing part at intervals in the array direction of pins of the connectors that the connector holder holds. The connecting parts respectively connect a lower end portion of the pressing part and a lower end portion of each of the side wall parts disposed on the both sides in the array direction. Holding parts are respectively formed on the both sides in the array direction of the pressing part, the holding parts holding the connectors together with the pressing part, the side wall parts, and the connecting parts.

Abstract: A fixing cable tie binds electric cables and fixes the electric cables to a mounting plate. The fixing cable tie includes a pair of elastic pieces and a pair of cable ties. The elastic pieces serve as a locking section for fixing the electric cables to the mounting plate, and elastically deform inward by external urging to shrink in diameter. The pair of cable ties binds the electric cables. The pair of cable ties (first cable tie section and second cable tie section) is joined respectively to the pair of elastic pieces.

Abstract: In a laser scanning device, a first light shielding portion and a second light shielding portion respectively shield a first light shielding region and a second light shielding region from a light beam. The first light shielding region is a part of a first region which is on one side of a target intermediate region and the second light shielding region is a part of a second region which is on the other side of the target intermediate region. The target intermediate region is a belt-like intermediate region of a light receiving surface of a light sensor. Widths of the first and second light shielding regions in the main scanning direction gradually expand from first and second base end portions to first and second side edges which are opposite ends of the light receiving surface in the sub scanning direction.

Abstract: In a laser scanning device, a first light shielding portion and a second light shielding portion respectively shield a first light shielding region and a second light shielding region from a light beam. The first light shielding region is a part of a first region which is on one side of a target intermediate region and the second light shielding region is a part of a second region which is on the other side of the target intermediate region. The target intermediate region is a belt-like intermediate region of a light receiving surface of a light sensor. Widths of the first and second light shielding regions in the main scanning direction gradually expand from first and second base end portions to first and second side edges which are opposite ends of the light receiving surface in the sub scanning direction.

Abstract: An optical scanning device includes a rotary polygon mirror, a plurality of light sources, a light detecting portion, an obtainment processing portion, an a switching processing portion. The rotary polygon mirror has a reflection surface that reflects incident light, and scans, in a scanning cycle, the light reflected on the reflection surface. The light sources emit, toward the reflection surface, a plurality of light beams. The light detecting portion detects a light amount of each light beam reflected on the reflection surface. The obtainment processing portion obtains a switching timing to switch a light emission amount of each of the light sources in the scanning cycle, based on light amounts of the light beams detected by the light detecting portion. The switching processing portion switches the light emission amount of each of the light sources based on the switching timing obtained by the obtainment processing portion.

Abstract: An optical scanning device includes a rotary polygon mirror, a plurality of light sources, a light detecting portion, an obtainment processing portion, an a switching processing portion. The rotary polygon mirror has a reflection surface that reflects incident light, and scans, in a scanning cycle, the light reflected on the reflection surface. The light sources emit, toward the reflection surface, a plurality of light beams. The light detecting portion detects a light amount of each light beam reflected on the reflection surface. The obtainment processing portion obtains a switching timing to switch a light emission amount of each of the light sources in the scanning cycle, based on light amounts of the light beams detected by the light detecting portion. The switching processing portion switches the light emission amount of each of the light sources based on the switching timing obtained by the obtainment processing portion.

Abstract: A row scanning unit activates a synchronous curtain shutter mode in which pixel reset scan is performed and exposure of the imaging area is started by the pixel reset scan and is ended by light shielding by a mechanical curtain shutter, the pixel reset scan meaning that scan on a row-by-row basis is performed on pixel reset in which the photodiodes are reset by turning on the transfer transistors and a corresponding reset transistor, wherein in the mechanical curtain synchronous shutter mode, the pixel reset scan according to the traveling characteristics of the mechanical curtain shutter is performed, and the pixel reset scan includes performing a pixel reset operation simultaneously on the unit cells of different rows.

Abstract: A row scanning unit activates a synchronous curtain shutter mode in which pixel reset scan is performed and exposure of the imaging area is started by the pixel reset scan and is ended by light shielding by a mechanical curtain shutter, the pixel reset scan meaning that scan on a row-by-row basis is performed on pixel reset in which the photodiodes are reset by turning on the transfer transistors and a corresponding reset transistor, wherein in the mechanical curtain synchronous shutter mode, the pixel reset scan according to the traveling characteristics of the mechanical curtain shutter is performed, and the pixel reset scan includes performing a pixel reset operation simultaneously on the unit cells of different rows.

Abstract: It is an object of the present invention to provide a solid-state imaging device capable of operating at high-speed, and suppressing the deterioration of image quality caused by coupling. A solid-state imaging device according to the present invention includes: pixels arranged in rows and columns; color filters each of which is arranged on a light incidence plane of a corresponding one of the pixels, each of the color filters being one of at least two colors; and column signal lines provided for each of the columns of the pixels, and each of which transmits the signals from the pixels in a column direction, in which one of the color filters is arranged on one of the pixels connected to the column signal line, and is of a same color as another one of the color filters arranged on another one of the pixels connected to the column signal line.

Abstract: A solid-state imaging device which optimizes gains for each color without a need for complicated control of changing the resistance values of variable resistances and switching switches depending on pixels from which signals are to be read, while preventing an S/N deterioration in AD conversion. The solid-state imaging device comprises: a plurality of pixels arranged in a matrix; column amplifiers, each amplifying signals generated by pixels of a corresponding one of columns of the matrix; and column AD converters, each performing AD conversion on a signal generated by a corresponding one of the column amplifiers, wherein each of the plurality of pixels corresponds to a color among colors, and each of the column amplifiers amplifies output signals generated by all pixels of a corresponding one of the colors, among pixels of the corresponding column of the matrix.