Abstract: According to an aspect of the present invention, there is provided a fixing device including: a heating roller that generates a heat and is formed to have a mold releasing property; a pressure belt that is brought into contact with the heating roller and is driven according to a rotation of the heating roller; an arm that presses the pressure belt toward the heating roller; and a belt regulating member that contacts an end face of the pressure belt to regulate a shift thereof and is configured to be swingable with respect to the arm.

Abstract: An open/close mechanism can be used for paper trays of an image forming apparatus. The open/close mechanism includes a plate member provided on a side of a housing of the image forming apparatus and configured to pivot upon an axis between an open position and a close position, and a box member that is arranged in the housing beneath the plate member and that can be drawn out of the housing from the side. The open/close mechanism includes also includes a restricting unit that is coupled to the plate member and that abuts against the box member when the box member is set in the housing and when the plate member is in the open position thereby restricting detachment of the box member from the housing.

Abstract: A roll medium holding unit is disclosed that includes a core part configured to be inserted in a core pipe of a roll medium; and plural diameter-increasing members configured to be variably arranged at corresponding first positions provided along a periphery of the core part and arranged at corresponding second positions provided away from the core part. The roll medium holding unit is capable of being set in a first holding state where the diameter-increasing members arranged at an outer peripheral surface of the core part support the roll medium with the diameter-increasing members arranged at the corresponding first positions and capable of being set in a second holding state where the core part of a holding member supports the roll medium with the diameter-increasing members arranged at the corresponding second positions.

Abstract: A fixing unit where an operating force for releasing a nip can be reduced with a small-sized configuration. The fixing unit has a heating roller including a heating element, a pressure belt, pressure arms, pressure springs, and nip load releasing units. The pressure belt is supported in an intermediate position between the pressure arms 3. One end portions of the pressure arms are brought into contact with the pressure springs respectively. The other end portions of the pressure arms are brought into contact with the nip load releasing units respectively. When a load applied to the pressure belt is released by the nip load releasing units, the other end portions of the pressure arms move away from the heating roller.

Abstract: A rolled paper driving apparatus includes supporting rollers that support rolled paper in such a manner that an axis line of the rolled paper extends between the supporting rollers, the rolled paper having a core pipe in a shape of a pile; a driving roller that is pressed onto an inner circumferential surface of the core pipe of the rolled paper and gives force to rotate the rolled paper; a driving force transmission part that rotates the driving roller; and a pressing force adjustment part that adjusts a state of the driving roller being pressed onto the inner circumferential surface of the core pipe of the rolled paper. The driving roller is disposed in the inside of a triangle that has vertexes corresponding to the supporting rollers and a center of the rolled paper, respectively.

Abstract: An image forming apparatus including an image reading unit disposed in an upper portion of the image forming apparatus, an image forming unit disposed below the image reading unit to form an image on a sheet fed from a sheet roll, a pair of flange members attached to both lateral ends of the sheet roll in a width direction of the sheet roll, a sheet roll supporter disposed below the image reading unit in a rear portion of the image forming apparatus to support the sheet roll, an opening through which the sheet roll is set to the sheet roll supporter, and a guide assembly provided at upper and lower parts of the opening to position at least one of the pair of flange members attached to the sheet roll in the width direction to guide the sheet roll to the sheet roll supporter.

Abstract: An open/close mechanism can be used for paper trays of an image forming apparatus. The open/close mechanism includes a plate member provided on a side of a housing of the image forming apparatus and configured to pivot upon an axis between an open position and a close position, and a box member that is arranged in the housing beneath the plate member and that can be drawn out of the housing from the side. The open/close mechanism includes also includes a restricting unit that is coupled to the plate member and that abuts against the box member when the box member is set in the housing and when the plate member is in the open position thereby restricting detachment of the box member from the housing.

Abstract: According to an aspect of the present invention, there is provided a sheet feed cassette including: a main container on which sheets are mounted; a sub container slidably attached to the main container; and first slidable portions that are arranged on sidewalls of each of the main container and the sub container, and that are formed in a U-shape.

Abstract: An open/close mechanism can be used for paper trays of an image forming apparatus. The open/close mechanism includes a plate member provided on a side of a housing of the image forming apparatus and configured to pivot upon an axis between an open position and a close position, and a box member that is arranged in the housing beneath the plate member and that can be drawn out of the housing from the side. The open/close mechanism includes also includes a restricting unit that is coupled to the plate member and that abuts against the box member when the box member is set in the housing and when the plate member is in the open position thereby restricting detachment of the box member from the housing.

Abstract: A fixing unit where an operating force for releasing a nip can be reduced with a small-sized configuration. The fixing unit has a heating roller including a heating element, a pressure belt, pressure arms, pressure springs, and nip load releasing units. The pressure belt is supported in an intermediate position between the pressure arms 3. One end portions of the pressure arms are brought into contact with the pressure springs respectively. The other end portions of the pressure arms are brought into contact with the nip load releasing units respectively. When a load applied to the pressure belt is released by the nip load releasing units, the other end portions of the pressure arms move away from the heating roller.

Abstract: According to an aspect of the present invention, there is provided a fixing device including: a heating roller that generates a heat and is formed to have a mold releasing property; a pressure belt that is brought into contact with the heating roller and is driven according to a rotation of the heating roller; an arm that presses the pressure belt toward the heating roller; and a belt regulating member that contacts an end face of the pressure belt to regulate a shift thereof and is configured to be swingable with respect to the arm.

Abstract: An electronic color photography apparatus includes a photosensitive body and a plurality of detachable developing devices. A power for moving the developing devices close to the photosensitive body is created by a retracting force of a slanted teeth gear which is driven at one side of a body of the electronic color photography apparatus.

Abstract: According to an aspect of the present invention, there is provided a sheet feed cassette including: a main container on which sheets are mounted; a sub container slidably attached to the main container; and first slidable portions that are arranged on sidewalls of each of the main container and the sub container, and that are formed in a U-shape.

Abstract: An open/close mechanism can be used for paper trays of an image forming apparatus. The open/close mechanism includes a plate member provided on a side of a housing of the image forming apparatus and configured to pivot upon an axis between an open position and a close position, and a box member that is arranged in the housing beneath the plate member and that can be drawn out of the housing from the side. The open/close mechanism includes also includes a restricting unit that is coupled to the plate member and that abuts against the box member when the box member is set in the housing and when the plate member is in the open position thereby restricting detachment of the box member from the housing.

Abstract: A fixing device includes a first fixing part having a heater disposed therein, a second fixing part, disposed to oppose to the first fixing part, for pinching a recording medium to form a first nip portion, a pair of transfer rollers, disposed at a downstream side of the recording medium, for forming a second nip portion, a guide for biasing the recording medium discharged from the transfer rollers towards the first fixing part side from one of the transfers rollers, and means part for biasing the guide towards the recording medium side.

Abstract: An image forming device includes an openable panel disposed on a side of the image forming device. The panel includes a pair of carrying rollers, a transcribing roller and a pair of discharging sheet carrying rollers.

Abstract: A metal holder has a V-shape in cross-section formed by two arm sections. PET sheets are attached to mutually opposed surfaces of respective arm sections, and part of each PET sheet extends toward the electrically-conductive roller beyond the arm section. Flocked sheets are attached to the surfaces of the respective PET sheets opposite the electrically-conductive roller, and contact the electrically-conductive roller.

Abstract: A fixing device comprising a first fixing means having a heating means disposed therein, a second fixing means, disposed to oppose to the first fixing means, for pinching a recording medium to form a first nip portion, a pair of transfer rollers, disposed at a downstream side of the recording medium, for forming a second nip portion, a guide for biasing the recording medium discharged from the transfer rollers towards the first fixing means side from one of the transfers, and means for biasing the guide towards the recording medium side.

Abstract: An electronic color photography apparatus includes a photosensitive body and a plurality of detachable developing devices. A power for moving the developing devices close to the photosensitive body is created by a retracting force of a slanted teeth gear which is driven at one side of a body of the electronic color photography apparatus.

Abstract: A metal holder has a V-shape in cross-section formed by two arm sections. PET sheets are attached to mutually opposed surfaces of respective arm sections, and part of each PET sheet extends toward the electrically-conductive roller beyond the arm section. Flocked sheets are attached to the surfaces of the respective PET sheets opposite the electrically-conductive roller, and contact the electrically-conductive roller.