Patent application number | Description | Published |
20110229184 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device includes: a developer carrying member for supplying a developer to an image bearing member at an opposing region opposing to the image bearing member, the developer carrying member being arranged so as to be opposed to the image bearing member on which an electrostatic latent image is to be formed; a blade for regulating an amount of the developer carried on the developer carrying member; a casing for housing the developer carrying member and the blade, the casing including a wall portion opposed to the developer carrying member between the blade and the opposing region; a sheet member that is flexible, provided on the wall portion, has a free end, forms a part of an inner wall surface of the wall portion, and is movable in a direction perpendicular to the inner wall surface; and a moving portion provided on the wall portion, for moving the sheet member. | 09-22-2011 |
20110229211 | TONER DISPERSING MEMBER AND TONER DISPERSING MECHANISM PROVIDED THEREWITH - Provided is a toner dispersing member including a rotary shaft and dispersing protrusions formed of a flexible film member wound along an outer peripheral surface of the rotary shaft, the flexible film member including a large number of cuts formed on one side thereof and are directed outward. The toner dispersing member is rotated about the rotary shaft so that a lump of toner coming into contact with the dispersing protrusions is dispersed. | 09-22-2011 |
20120201575 | Developing Device and Image Forming Apparatus Including the Same - A developing device includes a developing roller, toner supplying roller, regulation blade, and casing. The developing roller faces an image carrier on which an electrostatic latent image is to be formed, and supplies toner to the image carrier. The toner supplying roller faces the developing roller, and supplies the toner to the developing roller. The regulation blade faces the toner supplying roller at predetermined distance. The casing houses the developing roller, toner supplying roller, and regulation blade. The casing includes a toner catching support member facing the developing roller or the toner supplying roller between the regulation blade and the image carrier. The developing device further includes a toner catching member, which is arranged along a longitudinal direction of the toner catching support member and catches toner that drops from the developing roller, and a vibration generating portion, which vibrates the toner catching member. | 08-09-2012 |
20130216257 | DEVELOPER TRANSPORTING MECHANISM, DEVELOPING DEVICE WITH THE SAME, AND IMAGE FORMING APPARATUS - A developer transporting mechanism includes a pipe-like transporting path, sealing member, shutter, and urging member. The pipe-like transporting path, through which a developer is transported, has an discharge port at part of its side surface. The shutter is slidable along the surface of the sealing member to open and close the discharge port. The urging member urges the shutter in a direction in which the discharge port is closed. The sealing member is secured to the outer circumferential surface of the pipe-like transporting path. The sealing member also has a reduced part; its dimension in a width direction orthogonal to a direction in which the shutter moves is gradually reduced from the upstream end in the closing direction of the shutter toward the downstream end. | 08-22-2013 |
20130343784 | DEVELOPING UNIT AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing unit according to an embodiment of the present disclosure includes a developer container, a stirring member, a magnetic roller, a developing roller, a developer supply port, and a developer discharge portion. The developer discharge portion includes a discharge blade having a spiral blade and conveying an excess developer, a developer discharge port through which the excess developer conveyed by the discharge blade is discharged outside of the developer container, and an air outlet through which an airflow in the developer container passes toward the outside of the developer container. The developer discharge port is located at a position lower than the upper surface of the developer present in the developer discharge portion; and the air outlet is located at a position higher than the upper surface of the developer present in the developer discharge portion. | 12-26-2013 |
20130343786 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS PROVIDED THEREWITH - A developing device of the present disclosure includes a developing roller, a toner feeding roller, a regulating blade, a blade holding member, a toner receiving member, and a casing. The regulating blade regulates a thickness of toner carried on the toner feeding roller. An air flow path is formed inside the blade holding member. The toner receiving member, the regulating blade, and the blade holding member each include a slit hole that leads to the air flow path. | 12-26-2013 |
20130343787 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS PROVIDED THEREWITH - A developing device of the present disclosure includes a developing roller, a toner feeding roller, a thickness regulating member, and a casing. The toner feeding roller feeds toner to the developing roller. The thickness regulating member is disposed opposite to the toner feeding roller at a predetermined distance from the toner feeding roller, and the thickness regulating member regulates a thickness of the toner carried on the toner feeding roller. The casing holds therein the developing roller, the toner feeding roller, and the thickness regulating member. The thickness regulating member is formed in a roller shape and rotatable. | 12-26-2013 |
20140205310 | DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A development device includes a sheet member, a support member, and a vibration applying device. The sheet member is disposed between a developer carrier and a blade to receive a developer falling from the developer carrier toward the blade. The developer carrier is disposed to face to an image carrier on which an electrostatic latent image is formed and configured to supply the developer to the image carrier in a facing area to the image carrier. The blade is configured to regulate an amount of the developer carried on the developer carrier. The support member holds the sheet member. The vibration applying device applies vibration to the sheet member. The sheet member is stretchable and flexible and is stretched over the support member. | 07-24-2014 |
20140205311 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device includes a contact member and a developing adhesion member. The contact member is provided to an air releasing part communicating an inside and an outside of a developer case storing a developer containing a toner, in a condition being contactable with an agitating member agitating and conveying the developer in the developing case. The developing adhesion member is supported by the contact member and is configured to collect the developer within air flowing from the inside to the outside of the developing case and to receive vibration caused by agitating and conveying operations of the agitating member through the contact member. | 07-24-2014 |
20140348536 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image carrying member unit, a development device, a developer collection mechanism and a unit support tray. The developer collection mechanism is arranged on a downstream side in a first direction where the development device and the image carrying member unit are fitted into the main body of the image forming apparatus and the toner discharge portion of the image carrying member unit is coupled to the developer collection mechanism. The unit support tray is provided such that the unit support tray can be moved horizontally in the first direction and a second direction where the development device and the image carrying member unit are removed from the main body of the image forming apparatus; the unit support tray is moved in the first or second direction such that the toner discharge portion and the developer collection mechanism are coupled or the coupling is cancelled. | 11-27-2014 |
20140348543 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image forming section including an image carrier and a developing device, and a developer recovery mechanism. The developing device includes, a developer carrier, and a developer discharge portion. The image forming section incorporates a developing device employing a first developing method where toner is caused to adhere to the image carrier by a magnetic brush formed on the developer carrier, or a developing device having a toner carrier between the developer carrier and the image carrier, and employing a second developing method where a toner layer is formed on the toner carrier by a magnetic brush formed on the developer carrier, and toner is caused to adhere to the image carrier by the toner layer formed on the toner. These developing devices, in the image forming section, each have a same positional relationship between the developer discharge portion and an image-carrier rotation shaft. | 11-27-2014 |