Abstract: An image forming apparatus which includes a plurality of image bearing members, a plurality of primary transferring devices, an intermediary transfer unit, a secondary transfer portion, a feeding path, a detecting member, an adjusting device, an openable member, a guiding mechanism, and a retracting mechanism.

Abstract: An image forming apparatus includes a plurality of image bearing members; a plurality of primary transferring devices for transferring toner images from the image bearing member onto an intermediary transfer belt provided above the plurality of image bearing members; an intermediary transfer unit including the intermediary transfer belt; a secondary transfer portion for transferring the toner image from the intermediary transfer belt onto a recording material; a feeding path for feeding the recording material upwardly toward the secondary transfer portion; a detecting member for detecting the toner image formed on the intermediary transfer belt; an adjusting device for adjusting a condition under which the image is formed on the image bearing member on the basis of a result of detection of the detecting member; an openable member for opening the feeding path; a guiding mechanism for guiding draw of the intermediary transfer unit toward the feeding path when the openable member opens; and a retracting mechanis

Abstract: An image forming apparatus including an image bearing member that rotates while bearing toner image, a transfer unit including, a transfer member that rotates while contacting to the image bearing member and transfers the toner image on the image bearing member to a recording material, and a toner removing member that rotates while contacting with the transfer member, and collects the toner on the transfer member, a transmission path that transmits drive power for rotating the transfer member and the toner removing member, and a separation/contact unit that rocks the transfer unit and the transmission path integrally around a rotational center of a driving power reception member which is a part of the transmission path and to which the driving power is applied, so that the transfer member is separated from and contacted with the image bearing member.

Abstract: Provided is an image forming apparatus including: an image carrying unit on which a toner image is carried; a transfer unit that transfers a toner image carried by the image carrying unit onto a sheet at a transferring position; a sheet conveyor unit that conveys the sheet having the toner image transferred thereto by the transfer unit; a suction device that sucks the sheet to the sheet conveyor unit; and a controller that stops or reduces a sucking operation of the suction device where the toner image carried by the image carrying unit passes the transferring position without being transferred onto the sheet.

Abstract: An image forming apparatus is provided with an image bearing member bearing a toner image thereon, a toner image forming device for forming the toner image on the image bearing member, a transferring member for transferring the toner image borne on the image bearing member to a recording medium being moved, a cleaning member for electrostatically removing the toner adhering to the transferring member, and an electric field forming device for forming an electric field between the transferring member and the cleaning member, wherein when the greatest length of the image formable by the toner image forming device in a direction orthogonal to the direction of movement of the recording medium is defined as L1, and the length of the transferring member is defined as L2, and the length of an area in which the electric field is formed is defined as L3, the relation that L2>L3>L1 is satisfied.

Abstract: An image forming apparatus according to the present invention includes an image bearing member, toner image forming device for forming a toner image on the image bearing member, a transferring member for bringing into and out of contact with the image bearing member by rocking operation to electrostatically transfer the toner image on the image bearing member to a transfer material, and a toner removing device for, while the transferring member rocks, electrostatically removing the toner on the transferring member by that a bias is applied.

Abstract: An image forming apparatus according to the present invention includes an image bearing member, toner image forming device for forming a toner image on the image bearing member, a transferring member for bringing into and out of contact with the image bearing member by rocking operation to electrostatically transfer the toner image on the image bearing member to a transfer material, and a toner removing device for, while the transferring member rocks, electrostatically removing the toner on the transferring member by that a bias is applied.

Abstract: An image forming apparatus provided with an image bearing member bearing a toner image thereon, a toner image forming device for forming the toner image on the image bearing member, a transferring member for transferring the toner image borne on the image bearing member to a recording medium being moved, a cleaning member for electrostatically removing the toner adhering to the transferring member, and an electric field forming device for forming an electric field between the transferring member and the cleaning member, wherein when the greatest length of the image formable by the toner image forming device in a direction orthogonal to the direction of movement of the recording medium is defined as L1, and the length of the transferring member is defined as L2, and the length of an area in which the electric field is formed is defined as L3, the relation that L2>L3>L1 is satisfied.

Abstract: Disclosed is an image forming apparatus that includes a plurality of developing devices capable of developing an electrostatic latent image on an image bearing member at a developing position, a developing device moving apparatus for holding the plurality of developing devices and selectively moving one of the plurality of developing devices to the developing position, a connecting portion disposed on an apparatus main body side for electrically connecting a developing device located at the developing position to an apparatus main body, and to-be-connected portions disposed to the plurality of developing devices, respectively and coming into contact with the connecting portion, wherein any one of the connecting portion and the to-be-connected portions comprises a rotary member which is rotated by being in contact with the other of them.

Abstract: An image forming apparatus according to the present invention includes an image bearing member, toner image forming device for forming a toner image on the image bearing member, a transferring member for bringing into and out of contact with the image bearing member by rocking operation to electrostatically transfer the toner image on the image bearing member to a transfer material, and a toner removing device for, while the transferring member rocks, electrostatically removing the toner on the transferring member by that a bias is applied.

Abstract: Disclosed is an image forming apparatus that includes a plurality of developing devices capable of developing an electrostatic latent image on an image bearing member at a developing position, a developing device moving apparatus for holding the plurality of developing devices and selectively moving one of the plurality of developing devices to the developing position, a connecting portion disposed on an apparatus main body side for electrically connecting a developing device located at the developing position to an apparatus main body, and to-be-connected portions disposed to the plurality of developing devices, respectively and coming into contact with the connecting portion, wherein any one of the connecting portion and the to-be-connected portions comprises a rotary member which is rotated by being in contact with the other of them.