Abstract:
A sheet feeding device, which is included in an image forming apparatus, includes a roller detachably attached to the image forming apparatus and configured to feed a sheet in a sheet conveying direction, a shaft configured to engage with the roller and transmit a driving force to the roller, a movable body configured to rotate in a direction of rotational axis and includes a holding portion configured to engage with the second engaging portion of the roller and rotatably hold the roller and a guide configured to guide attachment of the second engaging portion of the roller to the holding portion, and a biasing body configured to apply a biasing force and bias the movable body from a drive receiving side to a drive transmitting side.
Abstract:
An image forming apparatus includes an apparatus body, a sheet container detachably attachable to the apparatus body and accommodating recording media therein, an image forming part to form an image on each of the recording media, a sheet separating part to separate the recording media one by one, feed the recording medium toward the image forming part, and include a sheet feeding body and a sheet separating body to rotate in contact with the sheet feeding body and form a sheet separation nip region with the sheet feeding body, a sheet containing unit to contain the recording media therein, and a sheet separating body storing unit disposed at one end of the sheet containing unit to store the sheet separating body therein. The sheet container being pulled out from the apparatus body by moving from the sheet containing unit to the sheet separating body storing unit.
Abstract:
A sheet feeder, which is included in an image forming apparatus, includes a sheet feeding unit to feed a sheet, a sheet separating unit disposed opposite the sheet feeding unit to separate the sheet together with the sheet feeding unit, a bottom plate on which the sheet is loaded, a pressing unit having a leading end and movably disposed between the bottom plate and the sheet separating unit, and a support to rotatably support the pressing unit such that the leading end of the pressing unit contacts and separates from the sheet feeding unit.
Abstract:
An image forming apparatus includes an image forming part to form an image on a recording medium, an apparatus body, a sheet container detachably attachable to the apparatus body and accommodating the recording medium, a sheet conveying path through which the recording medium is conveyed toward the image forming part, a sheet reentry path disposed above the sheet container and through which the recording medium having the image thereon is conveyed again to the sheet conveying path, a swing unit to swingably move a bottom plate of the sheet reentry path between a first position and a second position, a lock releasing unit to lock and release the bottom plate with respect to the first position of the swing unit, and a release operating unit to cause the lock releasing unit to release the bottom plate from the first position of the swing unit.
Abstract:
A bypass feeder, which is included in an image forming apparatus, includes an opening/closing unit opening and closing with respect to an apparatus body between a unit closed state and a unit open state, a bypass tray opening and closing with respect to the opening/closing unit between a tray closed state and a tray open state, a linkage including a flexible-member fixing member and connecting the opening/closing unit to the apparatus body, and a flexible member having one end fixed to the fixing member and the other end fixed to the bypass tray. When the opening/closing unit is changed to the unit open state while the bypass tray is rotated away from the opening/closing unit to the tray open state, the fixing member of the linkage shifts by pulling the flexible member to hold the bypass tray at a substantially horizontal line with respect to a sheet loading surface.
Abstract:
An image forming apparatus includes a sheet container accommodating a recording medium therein, a sheet separating feeder including a sheet feeding body and a sheet separating body, an image forming part, and a bend applier. The sheet feeding body feeds the recording medium along with a surface movement thereof while the recording medium contacting the surface thereof. The sheet separating body forms a sheet separation nip region with the sheet feeding body and sandwiches the recording medium in the sheet separation nip region. The sheet separating feeder separates and feeds the recording medium contacting the sheet feeding body. The image forming part forms an image on the recording medium. The bend applier having a leading end of an elastic material contacts and bends the recording medium before the sheet separation nip region and generates a wrinkle extending on the recording medium in a sheet conveying direction.
Abstract:
An image forming apparatus to which a sheet positioning device can be provided to perform a sheet positioning includes an image forming device and a sheet positioning device that includes a sheet setting plate, a pair of side fence units disposed facing each other along opposite sides of the sheet setting plate to move in a lateral direction of the sheet, a moving mechanism to move the pair of side fence units, a contact member to contact and press the sheet, a position detector to detect the position of the contact member, and a controller moving the pair of side fence units when the sheet is placed on the sheet setting plate, halting movement of the pair of side fence units after the contact member has contacted and pressed the sheet, and moving the pair of side fence units again based on detection results obtained by the position detector.
Abstract:
A sheet adjusting device, applicable to a sheet holding receptacle and an image forming apparatus, includes a sheet setting plate to place a sheet thereon, first and second regulating member to slidably move in a given direction, and a drive transmission unit to transmit a driving power generated by a driving power source to at least the first regulating member and move the first regulating member in the given direction and to include a torque limiting unit to stop the first regulating member moving on the sheet setting plate by cutting off transmission of the driving power between a driven side transmission roller unit of the torque limiting unit and a driving side transmission roller unit of the torque limiting unit when a torque exceeding a given threshold is applied to the driven side transmission roller unit.
Abstract:
A sheet adjusting device, applicable to a sheet holding receptacle and an image forming apparatus, includes a sheet setting plate to place a sheet thereon, first and second regulating member to slidably move in a given direction, a drive transmission mechanism to transmit a driving power generated by a driving power source to at least one of the first and second regulating members and move the first regulating member in the given direction, and a stopping unit to stop the first regulating member moving toward the sheet on the setting, plate either when a load exceeding a given threshold is given to either the driving power source or the drive transmission mechanism or when a pressure exceeding a given threshold is given to at least one of the first and second regulating members.
Abstract:
A sheet adjusting device, applicable to a sheet holding receptacle and an image forming apparatus, includes a sheet setting plate to place a sheet thereon, first and second regulating member to slidably move in a given direction, and a drive transmission unit to transmit a driving power generated by a driving power source to at least the first regulating member and move the first regulating member in the given direction and to include a torque limiting unit to stop the first regulating member moving on the sheet setting plate by cutting off transmission of the driving power between a driven side transmission roller unit of the torque limiting unit and a driving side transmission roller unit of the torque limiting unit when a torque exceeding a given threshold is applied to the driven side transmission roller unit.