Abstract: An image forming apparatus includes a photosensitive member; a charging device for electrically charging the photosensitive member; an exposure device for exposing to light the photosensitive member charged by the charging device to form an electrostatic image on the photosensitive member; a developing device for developing the electrostatic image on the photosensitive member with toner to form a toner image; a transfer portion for transferring the toner image from the photosensitive member onto an image receiving member; a toner charging portion, disposed upstream of the charging device and downstream of the transfer portion with respect to a rotational direction of the photosensitive member, for electrically charging the toner remaining on the photosensitive member without being transferred onto the image receiving member; and control portion for controlling the charging device and the exposure device so that a stripe-shaped electrostatic image is repeatedly formed in substantially parallel to a longitudina

Abstract: An image forming apparatus includes a photosensitive member; a developing device for developing an electrostatic image formed on said photosensitive member into a toner image; a transfer charger for transferring a toner image from said photosensitive member onto an image receiving member; a non-rotational brush and a rotatable brush for electrically charging toner, which remains on said photosensitive member after image transfer by said transfer charger, to collect the remaining toner into said developing device; a driving mechanism provided with a driving source for rotating said rotatable brush; and a moving mechanism for reciprocating said non-rotational brush by a driving force through said rotatable brush in a direction along an axis of said photosensitive member.

Abstract: An image forming apparatus includes a rotatable photosensitive member; a charging device for electrically charging the photosensitive member; a developing device for developing with toner an electrostatic latent image formed on the photosensitive member electrically charged by the charging device; a transfer device for transferring a toner image from the photosensitive member onto an image-receiving member; and an auxiliary charging device for electrically charging untransferred toner on the photosensitive member to a normal charge polarity before the photosensitive member is electrically charged by the charging device; wherein effective widths WPM, WCD, WTD, and WACD of the photosensitive member, the charging device, the developing device, the transfer device, and the auxiliary charging device satisfy: WPM>WCD>WACD?WTD>WDD.

Abstract: An image forming apparatus includes a photosensitive member; a developing device for developing an electrostatic image formed on said photosensitive member into a toner image; a transfer charger for transferring a toner image from said photosensitive member onto an image receiving member; a non-rotational brush and a rotatable brush for electrically charging toner, which remains on said photosensitive member after image transfer by said transfer charger, to collect the remaining toner into said developing device; a driving mechanism provided with a driving source for rotating said rotatable brush; and a moving mechanism for reciprocating said non-rotational brush by a driving force through said rotatable brush in a direction along an axis of said photosensitive member.

Abstract: An image forming apparatus includes an image bearing member which bears a toner image, a transfer member which transfers the toner image on the image bearing member to a transfer material, a cleaning blade which is brought into contact with and separated from the image bearing member and which removes transfer remaining toner remaining on the image bearing member where the toner image is transferred; and executing means which executes a toner cleaning mode such that the cleaning blade is brought into contact with and separated from the image bearing member so as not to remove a part of the transfer remaining toner remaining on the image bearing member, and then the cleaning blade having been separated from the image bearing member contacts the part of the transfer remaining toner remaining on the image bearing member when the cleaning blade again is brought into contact with the image bearing member.

Abstract: An image forming apparatus includes an auxiliary charging member contacting an image bearing member and for being supplied with a bias of an identical polarity to a normal charge polarity of toner at a position downstream from a transfer portion where a transfer member is located and upstream from a charging portion where a charging member is located with respect to a rotation direction of the image bearing member. When rotation of the image bearing member is stopped and then resumed, application of a toner transfer bias to the transfer member is started before a contact position between the image bearing member and the auxiliary charging member during the rotation stop of the image bearing member first reaches the transfer portion.

Abstract: An image forming apparatus includes an image bearing member which bears a toner image, a transfer member which transfers the toner image on the image bearing member to a transfer material, a cleaning blade which is brought into contact with and separated from the image bearing member and which removes transfer remaining toner remaining on the image bearing member where the toner image is transferred; and executing means which executes a toner cleaning mode such that the cleaning blade is brought into contact with and separated from the image bearing member so as not to remove a part of the transfer remaining toner remaining on the image bearing member, and then the cleaning blade having been separated from the image bearing member contacts the part of the transfer remaining toner remaining on the image bearing member when the cleaning blade again is brought into contact with the image bearing member.

Abstract: An image forming apparatus includes an auxiliary charging member contacting an image bearing member and for being supplied with a bias of an identical polarity to a normal charge polarity of toner at a position downstream from a transfer portion where a transfer member is located and upstream from a charging portion where a charging member is located with respect to a rotation direction of the image bearing member. When rotation of the image bearing member is stopped and then resumed, application of a toner transfer bias to the transfer member is started before a contact position between the image bearing member and the auxiliary charging member during the rotation stop of the image bearing member first reaches the transfer portion.

Abstract: An image forming apparatus includes a development unit, a transfer member, and a blade member. The development unit develops a latent image on an image bearing member and forms a toner image. The transfer member transfers the toner image on the image bearing member to a transfer material. The blade member is brought into contact with and separated from the image bearing member, and the blade member removes remaining transfer toner which is not transferred to the transfer material but remains on the image bearing member. An abutting control unit causes the blade member in a separated state to abut onto the image bearing member during a time starting after a front end of the remaining transfer toner passes through the abutting region and ending when a rear end of the remaining transfer toner has passed through the abutting region.

Abstract: An image forming apparatus includes a development unit, a transfer member, and a blade member. The development unit develops a latent image on an image bearing member and forms a toner image. The transfer member transfers the toner image on the image bearing member to a transfer material. The blade member is brought into contact with and separated from the image bearing member, and the blade member removes transfer remaining toner which is not transferred to the transfer material but remains on the image bearing member. In the image forming apparatus, the blade member in the separated state is caused to abut on an abutting toner image formed on the image bearing member.

Abstract: An image forming apparatus includes an image bearing member for bearing a developer image; an image forming apparatus for forming the developer image borne on the image bearing member; a transferring apparatus for electrostatically transferring the developer image on the image bearing member to a transferring material in a transferring area; and a guiding member for guiding the transferring material into the transferring area. The guiding member includes an insulating member disposed on a transferring material guide surface and a conductive member disposed on a surface opposite to the transferring material guide surface. A power source capable of applying a voltage having a predetermined polarity is electrically connected to the conductive member. A projection is provided on the surface of the insulating member.

Abstract: There is disclosed an image forming apparatus that has an image bearing member for bearing a developer image; an image forming apparatus for forming the developer image on the image bearing member; a transferring apparatus for electrostatically transferring the developer image on the image bearing member to a transferring material in a transferring area; and a guiding member for guiding the transferring material into the transferring area, wherein the guiding member includes an insulating member disposed on a transferring material guide surface, and a conductive member disposed on a surface opposite to the transferring material guide surface, a power source capable of applying a voltage having a predetermined polarity is electrically connected to the conductive member, and a projection is disposed on the surface of the insulating member.