摘要:
A developing agent recycling apparatus (17), comprising recycling means for recycling a developing agent from a mixture of the developing agent and foreign substances, the recycling means having an attracting member (19) for attracting the developing agent and a filter (20) for preventing other materials than the developing agent of the mixture from passing, the filter (20) being disposed in a region that the developing agent is moved by the attracting member. The attracting member is disposed upstream of the filter in a gravity working direction so that the other materials, like paper dust, can drop by their own weight. Additionally there is disclosed a way of changing the magnet configuration of such a system when it is not used.
摘要:
An image forming apparatus includes separating device (40). A recording material having an image is carried on a recording material carrying member (34). The separating member (40) separates the recording material from the recording material carrying member (34). The separating member (40) deforms the recording material carrying member (34) in the form of a thin sheet, by pressing a roller (42a) to the recording material carrying sheet (34), thus facilitate insertion of a separating pawl (42) between the recording material and the carrying sheet (34). By providing a single separating pawl (42), the probability of the erroneous separation is minimized. The recording material on the recording material carrying member (34) is efficiently separated therefrom without damage to the recording material carrying member (34), thus providing a high quality of images.
摘要:
An image forming apparatus includes an image transfer device (7) for transfering a toner image at an image transfer position on an image supporting member (P), a movable carrier (6a) for carrying the image supporting member (P) on a first side thereof and for conveying the image supporting member (P) to the image transfer position in order to perform the image transfert, an adsorption device for causing the image supporting member (P) to be electrostatically adsorbed or adhered onto the carrier device (6a). The adsorption device is provided at an upstream side of the image transfer position in the direction of movement of the carrier (6a). The adsorption device comprises a corona charger (19) provided at a second side of the carrier (6a) opposite to the first side. A contact member (23) for contacting the second side of the carrier (6a) is provided adjacent to the corona charger (19); this member corrects distorsion of the movable carrier (6a).
摘要:
An image forming apparatus includes an image bearing member (1); a charging member (2) contactable to the image bearing member to electrically charge the image bearing member, wherein a cleaning operation for the charging member is capable in at least one of a period before start of charging operation of the charging member for an area of the image bearing member which is going to be an image area and a period after completion of the charging operation for the image area; wherein a cleaning condition of the cleaning operation is changed in accordance with a number of continuous image forming operations in at least one job. In another embodiment the cleaning condition is changed in accordance with an integration of a parameter relating to toner consumption in one of a plurality of image forming stations.
摘要:
An image forming apparatus includes separating device (40). A recording material having an image is carried on a recording material carrying member (34). The separating member (40) separates the recording material from the recording material carrying member (34). The separating member (40) deforms the recording material carrying member (34) in the form of a thin sheet, by pressing a roller (42a) to the recording material carrying sheet (34), thus facilitate insertion of a separating pawl (42) between the recording material and the carrying sheet (34). By providing a single separating pawl (42), the probability of the erroneous separation is minimized. The recording material on the recording material carrying member (34) is efficiently separated therefrom without damage to the recording material carrying member (34), thus providing a high quality of images.
摘要:
An image forming apparatus includes a movable image carrying member (1), a latent imager (3) for forming a latent image on the image carrying member, a developer (4) for developing the latent image by a toner, a transferrer (7) for transferring a toner image on the image carrying member formed by the developer to an image supporting member (P) at a transfer position, a carrier (6) for carrying the image supporting member (P) and for conveying the image supporting member to the transfer position in order to perform the transfer, and an adsorption device (19, 20) for causing the image supporting member to be electrostatically adsorbed onto the carrier by supplying the image supporting member with electric charges, a detector (23) for detecting a kind of an image supporting member to be adsorbed, and a controller (24) for controlling an electric-charge supply amount by the adsorption device according to the kind of image supporting member detected by the detector.
摘要:
An image forming apparatus wherein an image formed on an image bearing member is transferred onto a transfer material carried on the transfer material carrying member. The transfer material carrying member is capable of electrostatically attracting a plurality of transfer material, so that good quality of images can be provided at a high overall image formation speed with a simple structure, because the possible deterioration of the quality of the image attributable to the difference between the effect of presence of the transfer material on the transfer material carrying member and the absence thereof on the transfer material carrying member can be minimized.