Abstract: A piezoelectric sound component is provided that includes a piezoelectric diaphragm and a case. The piezoelectric diaphragm is accommodated in the case. Moreover, a diaphragm 10 has a peripheral portion that includes a first peripheral portion and a second peripheral portion. The first peripheral portion is fixed to the case and the second peripheral portion is movable relative to the case. The case includes a step that is in positional agreement with the second peripheral portion in the thickness direction of the diaphragm. The step and the second peripheral portion define a clearance therebetween.

Abstract: A cleaning rod includes a rod-like member, a slidable portion which is provided on a free end side of the rod-like member with respect to a direction in which the cleaning rod is inserted and which is slidable on a light emergent surface of a lens of an image forming apparatus, and a restricting portion configured to restrict movement of the slidable portion in a direction away from the light emergent surface with respect to an optical axis direction by contacting the holder at each of free ends of opposing wall portions of a holder of the image forming apparatus from a side opposite from a side where a photosensitive member of the image forming apparatus is provided with respect to the optical axis direction in a state in which the slidable portion contacts the light emergent surface.

Abstract: An engine driving apparatus includes an engine, a starter motor, and a starter motor controller. The engine includes a plurality of cylinders. When any one of the plurality of cylinders enters a compression stroke, another one of the cylinders enters an expansion stroke. The starter motor is coupled to a crankshaft of the engine. The starter motor controller is configured to control the starter motor. Before restarting the engine, the starter motor controller performs pre-restart control for adding torque to the crankshaft by using the starter motor to open an exhaust valve of the cylinder in the expansion stroke.

Abstract: A holding member includes a first opposing portion (first inner wall surface) and a second opposing portion (second inner wall surface) which oppose side wall surfaces of a lens array. Side wall surfaces of the lens array on opposite end sides with respect to a longitudinal direction of the lens array are exposed from opposite ends of the first opposing portion and opposite ends of the second opposing portion.

Abstract: In a configuration in which a metal holder is supported by a resin member, the metal holder cannot be grounded, so that electricity may be discharged from the charged holder to a substrate held by the holder. The holder is provided with a pin to determine a position of the holder with respect to a photosensitive member. A conductive member that is made of metal and is grounded, is brought into contact with the pin to thereby enable the holder to be grounded through the pin.

Abstract: A cleaning rod includes a rod-like member, a slidable portion which is provided on a free end side of the rod-like member with respect to a direction in which the cleaning rod is inserted and which is slidable on a light emergent surface of a lens of an image forming apparatus, and a restricting portion configured to restrict movement of the slidable portion in a direction away from the light emergent surface with respect to an optical axis direction by contacting the holder at each of free ends of opposing wall portions of a holder of the image forming apparatus from a side opposite from a side where a photosensitive member of the image forming apparatus is provided with respect to the optical axis direction in a state in which the slidable portion contacts the light emergent surface.

Abstract: An optical scanning apparatus includes a light source, a light deflecting unit, an optical member, a casing, a cover member, and a detecting unit. The cover member is provided with a first opening permitting passage of a light beam emitted from the light source, a second opening permitting passage of the light beam deflected by the deflecting unit, and third and fourth openings which are provided in positions on a side opposite from the first and second openings with respect to the deflecting unit. Through the third opening, an outflow of the air from the cover member by rotation of said deflecting unit is relatively high. Through the fourth opening, an inflow of the air into the cover member by rotation of said deflecting unit is relatively high. The detecting unit is provided at a position where the air flow blowing through the third opening hits the detecting unit.

Abstract: A cleaning rod includes a rod-like member, a slidable portion which is provided on a free end side of the rod-like member with respect to a direction in which the cleaning rod is inserted and which is slidable on a light emergent surface of a lens of an image forming apparatus, and a restricting portion configured to restrict movement of the slidable portion in a direction away from the light emergent surface with respect to an optical axis direction by contacting the holder at each of free ends of opposing wall portions of a holder of the image forming apparatus from a side opposite from a side where a photosensitive member of the image forming apparatus is provided with respect to the optical axis direction in a state in which the slidable portion contacts the light emergent surface.

Abstract: In a configuration in which a metal holder is supported by a resin member, the metal holder cannot be grounded, so that electricity may be discharged from the charged holder to a substrate held by the holder. The holder is provided with a pin to determine a position of the holder with respect to a photosensitive member. A conductive member that is made of metal and is grounded, is brought into contact with the pin to thereby enable the holder to be grounded through the pin.

Abstract: An arrangement is therefore employed in which a flexible flat cable is guided by a guide member situated at a position facing a metal rear plate and the flexible flat cable extending from a connector to the metal rear plate is brought into contact with a wall portion of the metal rear plate so that the flexible flat cable is grounded.

Abstract: Disclosed is an image forming apparatus, including an optical scanning device, wherein the optical scanning device includes: a holding member configured to integrally hold a first cleaning member and a second cleaning member; a first guide member configured to guide a movement of the holding member; a second guide member configured to guide a movement of the holding member; a first groove portion; a second groove portion, and wherein when the holding member moves from end portions of the first guide portion and the second guide portion to an opposite side with respect to a central portion side and a first engaging portion and a second engaging portion of the holding member respectively pass in the first groove portion and the second groove portion, engagements of the first engaging portion and the second engaging portion with the first guide portion and the second guide portion are released.

Abstract: An image forming apparatus which includes an optical scanning device, wherein the optical scanning device includes: a holding member configured to integrally hold a first cleaning member and a second cleaning member; a first guide member configured to guide a movement of the holding member; and a second guide member configured to guide a movement of the holding member. A first protruding portion protrudes upward from an upper surface of the holding member and is provided at a position closer to an end portion of the holding member than the first cleaning member, and a second protruding portion protrudes upward from the upper surface of the holding member and is provided at a position closer to an end portion of the holding member than the second cleaning member. The first protruding portion and second protruding portion are provided for bending the holding member.

Abstract: An image forming apparatus includes a third link portion which is rotatably connected to said first link portion at a position between said first connecting portion and said first moving portion so that said first moving portion and said second moving portion are moved toward said drum unit by rotation of said first link portion about said first connecting portion as a rotation shaft and by rotation of said second link portion about said second connecting portion as a rotation shaft in interrelation with slide of said slidable portion, and which is rotatable relative to the apparatus main assembly. The third link portion is out of contact with the optical print head at a portion corresponding to an end portion on the optical print head side.

Abstract: An image forming apparatus includes a cover pivotable on a body to close an opening at a closed position and open the opening at an open position, first and second replacement units having photosensitive drums, an optical print head pivotable in one direction, a spring, and a stopper. The spring applies, to the optical print head, a force for allowing the optical print head to pivot toward the one direction so that a movement of the optical print head with a pivotal movement of the cover from the open position to the closed position is prevented from being inhibited by the first developing cartridge. The optical print head, having the force applied the optical print head by the spring, so that movement of the optical print head with pivotal movement of the cover from the open to the closed position is prevented from being inhibited by the second developing cartridge.

Abstract: An engine driving apparatus includes an engine, a starter motor, and a starter motor controller. The engine includes a plurality of cylinders. When any one of the plurality of cylinders enters a compression stroke, another one of the cylinders enters an expansion stroke. The starter motor is coupled to a crankshaft of the engine. The starter motor controller is configured to control the starter motor. Before restarting the engine, the starter motor controller performs pre-restart control for adding torque to the crankshaft by using the starter motor to open an exhaust valve of the cylinder in the expansion stroke.

Abstract: An arrangement is therefore employed in which a flexible flat cable is guided by a guide member situated at a position facing a metal rear plate and the flexible flat cable extending from a connector to the metal rear plate is brought into contact with a wall portion of the metal rear plate so that the flexible flat cable is grounded.

Abstract: An optical scanning apparatus includes a light source, a light deflecting unit, an optical member, a casing, a cover member, and a detecting unit. The cover member is provided with a first opening permitting passage of a light beam emitted from the light source, a second opening permitting passage of the light beam deflected by the deflecting unit, and third and fourth openings which are provided in positions on a side opposite from the first and second openings with respect to the deflecting unit. Through the third opening, an outflow of the air from the cover member by rotation of said deflecting unit is relatively high. Through the fourth opening, an inflow of the air into the cover member by rotation of said deflecting unit is relatively high. The detecting unit is provided at a position where the air flow blowing through the third opening hits the detecting unit.

Abstract: Provided are a first seating face and a second seating face, to which a lower side of a holding member of an optical print head being moved from an exposure position toward a retracted position by a movement mechanism strikes in the direction of movement thereof. A light emission face of a lens array of the holding member that has abutted the first seating face and second seating face is thereby positioned on a movement path of a rubbing portion provided on a cleaning member that is inserted from an opening.

Abstract: A casing of an optical scanning apparatus includes: a mounting portion to which a sound-insulating member is mountable; a first and a second support portions supporting a reflective mirror in the casing on which the sound-insulating member is mounted and brought into contact with a back surface of the reflective mirror; and a third and a fourth support portions supporting a reflective mirror in the casing on which the sound-insulating member is not mounted and brought into contact with a back surface of the reflective mirror, wherein the first and the second support portions are positioned between the third and the fourth support portions in a longitudinal direction of the reflective mirror, and contact portions of the third and the fourth support portions protrude toward a reflective surface side of the reflective mirror to be arranged with respect to contact portions of the first and the second support portions.

Abstract: A holding member includes a first opposing portion (first inner wall surface) and a second opposing portion (second inner wall surface) which oppose side wall surfaces of a lens array. Side wall surfaces of the lens array on opposite end sides with respect to a longitudinal direction of the lens array are exposed from opposite ends of the first opposing portion and opposite ends of the second opposing portion.