Abstract: A toner replenishing container for supplying toner to an image forming apparatus according to the invention includes: a container body for storing toner therein; a cap member attached to a mouth of the container body, the cap member having a toner outlet port and a shutter member for opening/closing the toner outlet port; and an indication member removably attachable to the cap member.

Abstract: A toner replenishing container for supplying toner to an image forming apparatus according to the invention includes: a container body for storing toner therein; a cap member attached to a mouth of the container body, the cap member having a toner outlet port and a shutter member for opening/closing the toner outlet port; and an indication member removably attachable to the cap member.

Abstract: A sheet feeding apparatus has a plurality of sheet trays each of which stores sheets to be fed. The sheet stored in the sheet trays is brought to a sheet feeding position by a plurality of sheet positioning mechanisms corresponding to the sheet trays, and is fed, one by one, at the sheet feeding position by a plurality of sheet feeding mechanisms corresponding to the sheet trays. Further, the sheet feeding apparatus has a motor which drives one of the sheet positioning mechanisms and the one of the sheet feeding mechanisms which corresponds to a sheet tray different from the sheet tray corresponding to the sheet feeding mechanism driven by the motor.

Abstract: A developing apparatus comprising: a developing device for contacting an electrostatic image-bearing member with a development mix of toner and carrier particles; a first transporting member for transporting the mix to the developing device, a second transporting member for transporting the mix to the first transporting member; a third transporting member for transporting the mix to the second transporting member such that first and second circulations of the mix are, respectively, formed between the first and second transporting members and between the second and third transporting members; a sensor for producing a concentration signal having a value indicative of the ratio of toner in the mix of the first circulation, which is disposed in the first circulation of the mix; and a toner replenishing device for replenishing toner to the second circulation of the mix in response to the concentration signal such that the toner is replenished from an area except for the area corresponding to the second transportin

Abstract: An automatic paper feeding apparatus which automatically feeds sheets one by one to an image forming portion, comprises a sheet storing plate, a paper-feeder roller for feeding sheets stored on the sheet storing plate, a transport roller positioned at the downstream relative to the paper-feeder roller in the paper feeding direction and rotatable in the paper feeding direction, a separation roller touching and pressing the transport roller and rotatable in the reverse direction to the paper feeding direction, a supporting plate for rotatably supporting the separation roller and being pivotably provided to move in the direction where the separation roller touches with and separates from the transport roller and being urged by an elastic member so as to cause the separation roller to be pressed toward the transport roller, and a guide plate for guiding a sheet into the nipping portion between the transport roller and the separation roller.

Abstract: The paper feeding device of the present invention comprises a paper holder for holding a stack of large number of paper sheets; a first roller for sheetwise feeding out paper sheets from the stack in or on the holder; a regular rotation roller for further feeding each of paper sheets and rotatably mounted at a position downstream from the first roller when looking in the paper feeding direction; and a paging roller mounted in opposition to the regular rotation roller. The paging roller is driven always in such a rotational direction for drawback of sheet or sheets in the reverse direction relative to the regular and forward paper feed direction when one or more common class paper sheet or sheets or a plurality of special class paper sheet of a different quality then common class paper sheet is/are fed between the regular rotation roller and the paging roller.