Ricoh Company, Ltd.

Takashi Fujimoto

Kozo Yamazaki

Mitsutaka Nakamura

Toshio Yamaki

Munekazu Hirata

Toshikane Nishii

Mizuna Tanaka

Hirofumi Horita

Yoshitake Shimizu

Ikuo Fujii

Kunihiko Nishioka

Kimihiro Tanaka

Tomoya Tanaka

Masaki Narita

Yutaka Aso

A sheet container, which is incorporated in an image forming apparatus, includes a container body having a loading face to load a sheet thereon, an extension unit disposed extendable in a sheet feeding direction with respect to the container body to extend the loading face, a length regulator disposed movable in the sheet feeding direction with respect to the extension unit to regulate a sheet trailing end position in the sheet feeding direction, and a sheet size indicator having a strip-shape provided on the container body along with a moving direction of the extension unit as a reference of a position of the length regulator, having at least one sheet size mark to indicate a size of the sheet, and being variable in length in a longitudinal direction with respect to the container body along with movement of the extension unit.

Sheet container and image forming apparatus incorporating same

A sheet feeder includes a feeding member to contact a sheet and feed the sheet downstream in a sheet conveyance direction, a friction pad disposed facing the feeding member to contact the feeding member, and a receiving table including a pad mount to hold a side of the friction pad opposite a nip between the friction pad and the feeding member. The friction pad includes a fixed range secured to the pad mount upstream from the nip and a movable range extending downstream the nip in the sheet conveyance direction. A first friction force of the pad mount to act on the movable range of the friction pad is smaller than a second friction force of the sheet to act on the movable range of the friction pad.

Sheet feeder and image forming apparatus

A sheet feed tray to stack a sheet to be conveyed to an image forming apparatus includes a platen on which a first portion of the sheet is placed; a pair of first support portions to support a second portion of the sheet folded back upward at a trailing end of the first portion; and a pair of second support portions to support a third portion of the sheet folded back upward at a trailing end of the second portion. In the sheet feed tray, the first support portions and the second support portions are reciprocally movable toward each other, and a distance between the second support portions is wider than a distance between the first support portions.

Sheet feed tray, sheet feed device, and image forming apparatus

An image forming apparatus includes a body, an image carrier provided in the body and configured to form an image thereon, a first gear to transmit a rotation driving force to the image carrier, a first rotary shaft to which the image carrier and the first gear are attached, a second gear to mesh with the first gear and transmit the rotation driving force to the first gear, a second rotary shaft to which the second gear is attached, a drive source configured to drive to rotate the image carrier via the first gear and the second gear, a first holder to hold the first rotary shaft of the first gear, and a second holder to hold the second rotary shaft of the second gear, and a relative position between the first holder and the second holder therein is adjustable.

Image forming apparatus having position adjustable drive unit

An image forming apparatus includes a structure having an image formation device to form an image, a cover pivotally attached to the structure around a rotary shaft, and an opening angle restricting device to restrict an opening angle of the cover regarding the structure. The opening angle restricting device includes a pivotable cover rotation restriction member coaxially arranged with the rotary shaft to contact a downstream side of the pivotable cover in a cover opening direction at its first end to restrict the rotation of the pivotable cover in the opening direction.

Compact image forming apparatus with simplified cover

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Hyogo, Japan

Takashi Fujimoto