Ricoh Company, Ltd.

Daikai Zaitsu

Junichi Sugita

Mamoru Kambayashi

Ryo Takenaka

Rie Ohtsuka

Tadayasu Enomoto

A sheet conveyance guide includes a guide portion, a first thrust direction retainer, and a second thrust direction retainer. The guide portion is configured to guide a sheet. The first thrust direction retainer includes a first engagement portion configured to engage with a shaft of a sheet conveying roller configured to convey the sheet, and a guide releaser configured to be operated by a user to release engagement of the first engagement portion with the shaft of the sheet conveying roller. The second thrust direction retainer includes a second engagement portion configured to engage with the shaft of the sheet conveying roller.

Sheet conveyance guide, sheet conveying device incorporating the sheet conveyance guide, and image forming apparatus incorporating the sheet conveying device

A sheet feeding device includes a feeder, a contact member, a movement restricting member, a moving mechanism, and control circuitry. The feeder is configured to feed a sheet. A leading end of the sheet in a feeding direction is to contact the contact member. The movement restricting member is configured to lock the contact member to restrict movement of the contact member from a contact position where the contact member contacts the sheet. The moving mechanism is configured to move the movement restricting member between a locking position and a lock releasing position. The contact member is configured to take the contact position by gravity or a biasing force of a biasing part. The control circuitry is configured to control the moving mechanism to move the movement restricting member to the lock releasing position and then to the locking position when a feeding operation of the sheet is finished.

Sheet feeding device and image forming apparatus

A sheet loading device includes a device body to load a sheet, a guide disposed extending in a sheet conveying direction in the device body, a restricting body to move along the guide of the device body and to restrict a position of an end portion of the sheet, and a securing body to attach to the restricting body and the guide and detach from the restricting body and the guide, and having an engaging body. The engaging body of the securing body engages with the guide at an arbitrary position on the guide in the sheet conveying direction. The restricting body is being secured to the device body according to engagement of the engaging body of the securing body with the guide of the device body.

Sheet loading device and image forming apparatus incorporating the sheet loading device

A sheet stacker includes a sheet adjuster movable to regulate a position of a sheet in the sheet stacker, an operation portion to release the sheet adjuster when the operation portion moves in a predetermined direction, and a lock movable together with the sheet adjuster and the operation portion to regulate a movement of the operation portion in the predetermined direction.

Sheet stacker and image forming apparatus

A sheet stacker includes a sheet stack table on which a sheet is stacked and a sheet reversing section disposed above the sheet stack table. The sheet reversing section defines a sheet reverse passage to reverse a direction of conveyance of a sheet fed to the sheet reversing section. The sheet reversing section includes a first sheet guide to guide a bottom face of the sheet and a second sheet guide disposed downstream from the first sheet guide in a sheet conveyance direction in which the sheet is fed to the sheet reversing section. The second sheet guide to guide the bottom face of the sheet is attachable to and removable from an apparatus body.

Growing community of inventors

Kanagawa, Japan

Daikai Zaitsu