Abstract: In accordance with an embodiment, a waste toner-storing container includes a container main body and a backflow-preventing member. A first storing chamber of the container main body includes a first storing space capable of storing an amount of waste toner discharged from a main body of an image forming apparatus, which is below a predetermined threshold. A second storing chamber of the container main body includes a second storing space that stores waste toner overflowing from the first storing space and discharged from the first storing chamber if the amount of waste toner exceeds the predetermined threshold. The backflow-preventing member prevents waste toner stored in the second storing space from moving into the first storing chamber.

Abstract: In accordance with an embodiment, a waste toner-storing container includes a container main body and a backflow-preventing member. A first storing chamber of the container main body includes a first storing space capable of storing an amount of waste toner discharged from a main body of an image forming apparatus, which is below a predetermined threshold. A second storing chamber of the container main body includes a second storing space that stores waste toner overflowing from the first storing space and discharged from the first storing chamber if the amount of waste toner exceeds the predetermined threshold. The backflow-preventing member prevents waste toner stored in the second storing space from moving into the first storing chamber.

Abstract: An endless belt for an image forming device includes a base member that is shaped in a loop and is to be rotated around a center of the loop, and a reinforcement tape that is attached to a side of the base member, has two ends that are overlapped with each other, and has a bonding portion between the two ends in the overlapped portion. The bonding portion has an outer portion, an inner portion and a center portion between the inner and outer portions. A length of the center portion in a rotating direction of the base member is greater than a length of the inner portion and a length of the outer portion.

Abstract: An endless belt for an image forming device includes a base member that is shaped in a loop and is to be rotated around a center of the loop, and a reinforcement tape that is attached to a side of the base member, has two ends that are overlapped with each other, and has a bonding portion between the two ends in the overlapped portion. The bonding portion has an outer portion, an inner portion and a center portion between the inner and outer portions. A length of the center portion in a rotating direction of the base member is greater than a length of the inner portion and a length of the outer portion.

Abstract: According to one embodiment, a method for forming an image including, making an image on an image holing member, pressing a nip between the image holding member and a pressure applying member, and controlling the pressure applying to the nip with first pressure before a leading edge of a sheet enters to the nip and second pressure before a leading edge of a sheet thicker than the first sheet enters to the nip.

Abstract: Rotation of photosensitive drums 21, 22, 23 and 24 is started and a full-color mode by a transfer roller drive unit is set for the exposing by an exposing unit 11. When the full-color mode is set, a transfer belt 25 contacts all the photosensitive drums 21, 22, 23 and 24. Then, after a paper sheet P passes through a secondary transfer roller 57, an all-separate mode by the transfer roller drive unit is set, and the rotation of the photosensitive drums 21, 22, 23 and 24 is stopped. When the all-separate mode is set, the transfer belt 25 separates from all the photosensitive drums 21, 22, 23 and 24.

Abstract: Rotation of photosensitive drums 21, 22, 23 and 24 is started and a full-color mode by a transfer roller drive unit is set for the exposing by an exposing unit 11. When the full-color mode is set, a transfer belt 25 contacts all the photosensitive drums 21, 22, 23 and 24. Then, after a paper sheet P passes through a secondary transfer roller 57, an all-separate mode by the transfer roller drive unit is set, and the rotation of the photosensitive drums 21, 22, 23 and 24 is stopped. When the all-separate mode is set, the transfer belt 25 separates from all the photosensitive drums 21, 22, 23 and 24.

Abstract: The present invention provides a technology capable of inhibiting generation of errors in a rotational speed of each gear resulted from form errors thereof in a driving force transmission using a plurality of gears.

Abstract: Rotation of photosensitive drums 21, 22, 23 and 24 is started and a full-color mode by a transfer roller drive unit is set for the exposing by an exposing unit 11. When the full-color mode is set, a transfer belt 25 contacts all the photosensitive drums 21, 22, 23 and 24. Then, after a paper sheet P passes through a secondary transfer roller 57, an all-separate mode by the transfer roller drive unit is set, and the rotation of the photosensitive drums 21, 22, 23 and 24 is stopped. When the all-separate mode is set, the transfer belt 25 separates from all the photosensitive drums 21, 22, 23 and 24.

Abstract: A fixing apparatus comprises a fixing belt held by and wound around a heating roller and a fixing roller, a pressurizing roller held pressed against the fixing roller by way of the fixing belt so as to heat and put pressure on the toner image on a sheet of paper with the fixing roller, a releasing member that releases the sheet of paper adhering to the fixing belt from the fixing belt during the fixing process, and a guide body that guides the sheet of paper along the fixing belt and causes the sheet to stick to and be conveyed by the transfer belt, without being released by the releasing member, along the fixing belt, so as to release the sheet of paper at a position where the fixing belt is held by the heating roller with a small radius of curvature.

Abstract: A fixing apparatus comprises a fixing belt held by and wound around a heating roller and a fixing roller, a pressurizing roller held pressed against the fixing roller by way of the fixing belt so as to heat and put pressure on the toner image on a sheet of paper with the fixing roller, a releasing member that releases the sheet of paper adhering to the fixing belt from the fixing belt during the fixing process, and a guide body that guides the sheet of paper along the fixing belt and causes the sheet to stick to and be conveyed by the transfer belt, without being released by the releasing member, along the fixing belt, so as to release the sheet of paper at a position where the fixing belt is held by the heating roller with a small radius of curvature.

Abstract: An image forming apparatus has functions of tilt adjustments to a mirror for reflecting a laser beam and outputting an image after registration of a plurality of images.

Abstract: A sheet size detecting device is provided with the following a tray in which sheets are stored, guides that can be adjusted in position in accordance with the size of sheets stored in the tray, and bit generation sections that are moved in synchronism with movement of the guides. The device detects bits based on the movement of the bit generation sections, and the number of bits detectable is larger than the number of bit generation sections by at least one. The device detects the size of sheets stored in the tray on the basis of the correspondence between the combination of detected bits and the sizes of sheets which can be stored in the tray.

Abstract: A fixing apparatus comprises a fixing belt held by and wound around a heating roller and a fixing roller, a pressurizing roller held pressed against the fixing roller by way of the fixing belt so as to heat and put pressure on the toner image on a sheet of paper with the fixing roller, a releasing member that releases the sheet of paper adhering to the fixing belt from the fixing belt during the fixing process, and a guide body that guides the sheet of paper along the fixing belt and causes the sheet to stick to and be conveyed by the transfer belt, without being released by the releasing member, along the fixing belt, so as to release the sheet of paper at a position where the fixing belt is held by the heating roller with a small radius of curvature.

Abstract: A fixing apparatus comprises a fixing belt held by and wound around a heating roller and a fixing roller, a pressurizing roller held pressed against the fixing roller by way of the fixing belt so as to heat and put pressure on the toner image on a sheet of paper with the fixing roller, a releasing member that releases the sheet of paper adhering to the fixing belt from the fixing belt during the fixing process, and a guide body that guides the sheet of paper along the fixing belt and causes the sheet to stick to and be conveyed by the transfer belt, without being released by the releasing member, along the fixing belt, so as to release the sheet of paper at a position where the fixing belt is held by the heating roller with a small radius of curvature.

Abstract: A sheet size detecting device is provided with the following a tray in which sheets are stored, guides that can be adjusted in position in accordance with the size of sheets stored in the tray, and bit generation sections that are moved in synchronism with movement of the guides. The device detects bits based on the movement of the bit generation sections, and the number of bits detectable is larger than the number of bit generation sections by at least one. The device detects the size of sheets stored in the tray on the basis of the correspondence between the combination of detected bits and the sizes of sheets which can be stored in the tray.

Abstract: A paper feeder of the present invention includes a paper tray for supporting paper and pickup rollers in total width more than 40% of the maximum paper width supportable by a paper tray for taking out a paper at the top position in a specified direction. This paper feeder is used for paper feeding of image forming apparatuses.

Abstract: A paper feeder of the present invention includes a paper tray for supporting paper and pickup rollers in total width more than 40% of the maximum paper width supportable by a paper tray for taking out a paper at the top position in a specified direction. This paper feeder is used for paper feeding of image forming apparatuses.

Abstract: A fixing apparatus comprises a fixing belt held by and wound around a heating roller and a fixing roller, a pressurizing roller held pressed against the fixing roller by way of the fixing belt so as to heat and put pressure on the toner image on a sheet of paper with the fixing roller, a releasing member that releases the sheet of paper adhering to the fixing belt from the fixing belt during the fixing process, and a guide body that guides the sheet of paper along the fixing belt and causes the sheet to stick to and be conveyed by the transfer belt, without being released by the releasing member, along the fixing belt, so as to release the sheet of paper at a position where the fixing belt is held by the heating roller with a small radius of curvature.

Abstract: A sheet size detecting device is provided with the following a tray in which sheets are stored, guides that can be adjusted in position in accordance with the size of sheets stored in the tray, and bit generation sections that are moved in synchronism with movement of the guides. The device detects bits based on the movement of the bit generation sections, and the number of bits detectable is larger than the number of bit generation sections by at least one. The device detects the size of sheets stored in the tray on the basis of the correspondence between the combination of detected bits and the sizes of sheets which can be stored in the tray.