Fujifilm Business Innovation Corp.

Fuji Xerox Co., Ltd.

Takehiko Koizumi

Hiroyuki Suzuki

Naohito Otsuki

Yuta Chino

Takuyoshi Kimura

Ryuga Oishi

Yasunobu Goto

Natsumi Nakata

Yoshinori Koike

Chihiro Iijima

Hiroyuki Momiyama

An image forming apparatus includes: a fixing cylinder, having a groove formed in an outer portion thereof in a rotational radial direction thereof; a delivery cylinder; plural holding members configured to hold a recording medium when it passes around the delivery cylinder toward the fixing cylinder, and arranged in a length direction of a circulating member, each holding member being disposed in the groove when the holding member passes along the outer portion of the fixing cylinder; and a pressure unit applying a pressure to the recording medium as it passes between the pressure unit and the fixing cylinder, the pressure unit coming into contact with an end portion of the groove in a rotation direction of the fixing cylinder before or after a period during a holding operation when one of the holding members holds the recording medium.

Image forming apparatus having a pair of chains wound around a fixing roller and a transfer roller

A detection device includes: a transport unit that stops transportation of a medium on which a first image is formed, the transport unit restarting the transportation of the medium toward an image forming unit after the medium has been in a stopped state, the image forming unit forming a second image on the medium; and a detection unit that detects an edge portion of the medium while the medium is in the stopped state.

Detection device and image forming apparatus

An image forming apparatus includes plural rotating members that are rotatable; an annular circulating member that is wound around the plural rotating members and circulates when the rotating members rotate; a retaining member attached to an attaching portion of the circulating member and that circulates together with the circulating member, the retaining member being configured to retain a recording medium in an area where the attaching portion comes into contact with one of the rotating members; an image forming section that forms an image on the recording medium at an image forming position defined on a circulation path along which the circulating member circulates; a delivering unit that delivers the recording medium to a retaining position where the recording medium is to be retained by the retaining member; a detector that detects rotation of the one rotating member; and a controller that controls delivery of the recording medium from the delivering unit to the retaining position, the delivery being controlled with reference to information detected by the detector.

Image forming apparatus

A detection device includes a first detection unit that detects a leading edge portion and a trailing edge portion of a medium before the medium is heated, and a second detection unit that differs from the first detection unit and that detects the leading edge portion and the trailing edge portion of the medium after the medium is heated.

Detection device, image forming apparatus, and non-transitory computer readable medium

An image forming apparatus includes: a circulating member that is a part of a transport path that transports a recording medium; a holding member that is fixed to the circulating member, circulates, and holds a leading end portion of the recording medium; an image forming section that forms an image on the recording medium at an image forming position in a circulation path of the circulating member; and a feeding section that feeds out the recording medium to a holding position where the holding member holds the leading end portion of the recording medium. When a circulation velocity Vg is defined as a velocity at which the circulating member circulates the holding member, a transport velocity of the recording medium is reduced from a first transport velocity V, which is higher than the circulation velocity Vg, to a second transport velocity V, which is lower than the first transport velocity V, before the leading end portion of the recording medium enters the holding position.

A detection device includes a transport passage along which a medium is transported and a detection unit that detects a leading edge portion and a trailing edge portion of the medium in the transport passage while transportation of the medium is stopped and while the medium is pulled in a pulling direction along the transport passage.

A sheet transport device includes a sheet storage unit that stores a sheet and that is disposed in a housing having a bottom plate such that a gap is provided between the sheet storage unit and the bottom plate, the gap extending horizontally; a sheet transport unit that feeds the sheet from the sheet storage unit and transports the fed sheet along a transport passage including a reversing transport path along which the sheet is transported downward and then upward to reverse the sheet front to back, the reversing transport path extending vertically and being connected to the gap; and a first gate unit that prevents passage of the sheet that has entered the reversing transport path when the sheet free falls and allows passage of the sheet when the sheet receives a sheet transport driving force from the sheet transport unit.

Sheet transport device and image forming apparatus

A sheet tray includes a sheet storage unit that stores a sheet, the sheet storage unit being capable of being pulled out of a housing in a forward direction and pushed into the housing in a rearward direction to a position such that a gap is provided below the sheet storage unit; and a sheet moving portion fixed to the sheet storage unit, the sheet moving portion moving together with the sheet storage unit when the sheet storage unit is pulled out, thereby moving a sheet that has entered the gap in the forward direction.

Sheet tray, sheet transport device, and image forming apparatus

An image forming apparatus includes a drawer unit, a sheet inverting unit, a sheet guide plate, and a projection. The drawer unit is drawable from an apparatus body. The sheet inverting unit is disposed in the apparatus body, and pulls a sheet into a lower portion of the drawer unit to invert the sheet. The sheet guide plate is disposed on the sheet inverting unit to face the drawer unit, and includes a recess extending in a pull-out direction of the drawer unit that crosses a direction in which the sheet is transported. The projection protrudes toward the recess from a portion of a lower surface of the drawer unit facing the sheet guide plate near a pull-out start point in the pull-out direction and on a rear of a transport area of the sheet.

An orientation correcting device includes a first transporting unit that nips and transports a sheet; a detecting unit that detects a tilt of the sheet that is transported by the first transporting unit; a second transporting unit that nips and transports the sheet that has been transported by the first transporting unit; a flexure forming unit that, with the second transporting unit stopped, forms a flexure in the sheet as a result of causing the sheet that is transported by the first transporting unit to strike against the second transporting unit; and a moving unit that, with the second transporting unit stopped and the flexure formed in the sheet by the flexure forming unit, moves the second transporting unit in a crossing direction that crosses a transport direction of the sheet in accordance with an amount and a direction of the sheet tilt detected by the detecting unit.

Orientation correcting device and image forming apparatus

An image forming system includes a feed section, a transport section, a transport position adjuster, and a load-position moving unit. The feed section feeds a sheet. The transport section transports the sheet fed from the feed section. The transport position adjuster adjusts a position of the sheet in an intersecting direction that intersects with a transport direction of the sheet transported by the transport section. The load-position moving unit moves the position, in the intersecting direction, of the sheet loaded in the feed section so as to reduce an adjustment amount by which the position is adjusted in the intersecting direction by the transport position adjuster if the adjustment amount is larger than a predetermined amount.

Growing community of inventors

Kanagawa, Japan

Takehiko Koizumi