A drive apparatus, including: a first rotary member; a second rotary member, which is provided with an axle hole, and which receives drive power from the first rotary member or transmits drive power to the first rotary member; an axle member, which is inserted into the axle hole and engages with the first rotary member so as to transmit drive power between the first rotary member and the second rotary member; and a coupling member for coupling the first rotary member and the second rotary member; wherein the coupling member is provided with a sliding portion which is disposed between the first rotary member and the second rotary member in the radial direction and which slides over either one of the first rotary member and the second rotary member when the first rotary member and the second rotary member rotate integrally with each other via the axle member.

To enable a user, when removing a sheet of paper from a transport mechanism, to easily remove the sheet of paper from the transport mechanism even with structure in which a transport roller is provided at a position inaccessible to a user. A paper-sheet transport device, including: a drive part which drives a transport mechanism transporting a sheet of paper; a cover; a shaft that rotatable in a predetermined direction by drive generated by the drive part, the shaft including a transport roller fixed thereto for transporting the sheet of paper; a lever which is arranged at, at least, a drive part side end out of both ends of the shaft and which, through a part of the cover, receives force due to an opening/closing operation of the cover; and a ratchet via which the lever and the shaft are engaged or disengaged, and which changes from the engaged state to the disengaged state in response to the lever receiving the force due to the opening/closing operation of the cover.

A recording apparatus includes a power transmission unit configured to be in a power transmission state in which power of a motor is transmitted to a medium reception tray and a power non-transmission state in which the power of the motor is not transmitted to the medium reception tray, and a switching lever unit configured to switch between the power non-transmission state and the power transmission state. The switching lever unit rotates between a contact position and a non-contact position. When the switching lever unit is at the contact position, the switching lever unit switches between the power non-transmission state and the power transmission state by sliding in contact with the carriage as a carriage reciprocates.

An image forming device includes: a tray; an image forming unit; a drive source; a feeding roller; a support portion; a support shaft; and a drive shaft. The tray is configured to support a recording sheet. The image forming unit is configured to form an image on the recording sheet. The drive source is configured to generate a driving force. The feeding roller is configured to rotate upon receipt of the driving force to feed the recording sheet supported by the tray toward the image forming unit. The support portion is configured to rotatably support the feeding roller. The support shaft is disposed above the tray and configured to pivotally movably support the support portion. The drive shaft is independent of the support shaft and configured to rotate upon receipt of the driving force from the drive source.

A paper feeding apparatus for an image forming apparatus is provided. The paper feeding apparatus includes a first paper feeding roller, a first one-way rotation transmission member disposed coaxially on the first paper feeding roller to transmit a first one-way rotational force to the first paper feeding roller, a second paper feeding roller spaced apart from the first paper feeding tray, a second one-way rotation transmission member disposed coaxially on the second paper feeding roller to transmit a second one-way rotational force to the second paper feeding roller, a drive source to rotate the first and second paper feeding rollers, a first power transmission member disposed between the first one-way rotation transmission member and the drive source, and a second power transmission member disposed between the second one-way rotation transmission member and the drive source.

A drive apparatus, including: a first rotary member; a second rotary member, which is provided with an axle hole, and which receives drive power from the first rotary member or transmits drive power to the first rotary member; an axle member, which is inserted into the axle hole and engages with the first rotary member so as to transmit drive power between the first rotary member and the second rotary member; and a coupling member for coupling the first rotary member and the second rotary member; wherein the coupling member is provided with a sliding portion which is disposed between the first rotary member and the second rotary member in the radial direction and which slides over either one of the first rotary member and the second rotary member when the first rotary member and the second rotary member rotate integrally with each other via the axle member.

A groove has a first side surface and a second side surface. The second side surface faces the first side surface and is located downstream of the first side surface in a first direction. The first side surface has a first contact surface configured to contact one side surface of a protrusion. The second side surface having a second contact surface and a guide surface. The second contact surface is smaller than the first contact surface. The second contact surface is configured to contact an other side surface of the protrusion. The guide surface is inclined away from the first contact surface in a direction from a tip-side end of the second contact surface toward a tip end of a drive shaft. The tip-side end is an end facing toward the tip end of the drive shaft. The guide surface is configured to guide the protrusion to the groove.

A drive apparatus, including: a first rotary member; a second rotary member, which is provided with an axle hole, and which receives drive power from the first rotary member or transmits drive power to the first rotary member; an axle member, which is inserted into the axle hole and engages with the first rotary member so as to transmit drive power between the first rotary member and the second rotary member; and a coupling member for coupling the first rotary member and the second rotary member; wherein the coupling member is provided with a sliding portion which is disposed between the first rotary member and the second rotary member in the radial direction and which slides over either one of the first rotary member and the second rotary member when the first rotary member and the second rotary member rotate integrally with each other via the axle member.

A document feeding device includes a document conveyance path for conveying a document to a first document reading position and a second document reading position for reading an image. Further, the document conveyance path includes a curved conveyance path. The document feeding device includes a document feeding roller that feeds the document to the curved conveyance path and a large-diameter conveying roller disposed on an inner side of the curved conveyance path and having a diameter larger than a diameter of the document feeding roller. A document conveyance speed of the large-diameter conveying roller is higher than a document conveyance speed of the document feeding roller.

A sheet dispenser for a dryer appliance includes a housing that defines a storage volume and an outlet. The storage volume is configured for receipt of a plurality of dryer sheets for dispensing. A roller is mounted to the housing within the storage volume. A motor is coupled to the roller such that the motor is operable to rotate the roller. The roller is configured to urge the plurality of dryer sheets in the storage volume through the outlet of the housing when the motor rotates the roller.