摘要:
An image forming apparatus includes an image bearing member; recording material carrying member for carrying a recording material; a transfer charging member for transferring a toner image formed on the image bearing member onto the recording material carried on the recording material carrying member; a controller for controlling an electric current supplied from the transfer charger to the recording material carrying member to be a predetermined level; and potential applying device for applying a potential of the same polarity as that of the toner image to a backside of the recording material carrying member prior to transfer operation of the transfer charger.
摘要:
The present invention provides an image forming apparatus comprising an image bearing member for bearing an image thereon, and a transfer device for transferring the image from the image bearing member to a recording material at a transfer station. Wherein a limit value of electric power supplied to the transfer device is changed between a case where an imaged portion of the image bearing member is positioned at the transfer station and a case where a non-imaged portion of the image bearing member is positioned at the transfer station.
摘要:
An image forming apparatus includes a recording material carrying member for carrying a recording material, the recording material carrying member having a seam and being movable along an endless path; an image forming device for forming an image on the recording material carried on the recording material carrying member; wherein a length l of the recording material measured in a direction of movement of the carrying member, a distance a between a trailing edge of the recording material and a leading edge of the next recording material when the recording materials are continuously supplied to the recording material carrying member, and a circumferential length L of the recording material carrying member substantially satisfy:L=n(l+a)(n: integer).
摘要翻译:图像形成装置包括用于承载记录材料的记录材料承载构件,所述记录材料承载构件具有接缝并且可沿着环形路径移动; 图像形成装置,用于在承载在记录材料承载构件上的记录材料上形成图像; 其中所述记录材料在所述承载构件的移动方向上测量的长度+ E,uns l + EE,当所述记录材料为所述记录材料时,所述记录材料的后缘与所述下一个记录材料的前缘之间的距离a 连续供给到记录材料承载部件,并且记录材料承载部件的周长L基本上满足:L = n(+ E,uns l + EE + a)(n:整数)。
摘要:
An image forming apparatus includes a movable member carrying a recording sheet bearing a non-fixed image and a separation device for separating the recording sheet from the movable member. The separation device includes a peel member made from resin and having a resistance between 10.sup.3 and 10.sup.11 .OMEGA.) and an electricity removing charger. The peel member is supported by a support member and is positioned such that a part of the resin peel member is within the discharge area of the electricity removing charger and the support member is disposed outside the discharge area and is electrically grounded.
摘要:
An image forming apparatus includes an image bearing member for bearing an image, a movable recording material carrying member for carrying a recording material on a first side thereof, the recording material carrying member cooperating with the image bearing member to form a nip therebetween, a transfer charging member, to which a voltage is applicable, the transfer charging member being contactable to a second side of the recording material carrying member to transfer in the nip an image from the image bearing member onto a recording material carried on the recording material carrying member, a pushing member for pushing the second surface of the recording material carrying member at a first position of the recording material carrying member to increase a width, measured along a movement direction of the recording material carrying member, of the nip, wherein the first position is remote from a second position where the transfer charging member is contactable to the recording material carrying member.
摘要:
This invention relates to an image forming apparatus which has a recording material support member for supporting a recording material and moving therewith, an image forming unit for forming an image on the recording material supported by the recording material support member, and attraction charging devices for electrostatically attracting the recording material to said recording material support member. The attraction charging devices are first and second electrodes positioned across the recording material support member from each other, wherein a center of charging of the first electrode to the recording material support member is shifted from a center of charging of the second electrode, in the moving direction of said recording material support member, and there may also be an auxiliary charger for charging, prior to image formation, the recording material attracted to the recording material support member.
摘要:
An image forming apparatus includes a recording material supporting member for supporting and transporting a recording material, an image forming device for forming an image on the recording material supported by the recording material supporting member, and a polishing device, having polishing particles provided on the surface thereof and a holding portion for holding the polishing particles, for polishing the recording material supporting member.
摘要:
In an image forming apparatus in which when separating a recording material from a recording-material conveying sheet, the recording-material conveying sheet is pressed and deformed by a pressing member, the pressing member has a convex curved portion contacting the recording-material conveying sheet in a direction orthogonal to the moving direction of the recording-material conveying sheet. It is thereby possible to sufficiently deform the recording-material conveying sheet while preventing it from being permanently deformed or broken.
摘要:
An image forming apparatus includes an image bearing member for bearing an image, a transfer charging device for transferring the image from the image bearing member onto a recording material at a transfer position, a power source for supplying a voltage to the transfer charging device during an image transfer operation, and a control device for changing an output of the transfer charging device from a first level to a second level prior to arrival of an image area of the image bearing member at the transfer position, wherein the second level is higher than a third level of the output which is a level when the image area is at the transfer position.
摘要:
The present invention provides a color image forming apparatus for forming a color image by superimposing a plurality of color toner images on a recording material, which can improve the quality of the toner images on the recording material during the transferring of the plural color toner images.The present invention slightly differentiates a moving speed of an electrophotographic photosensitive member as an image bearing member from a moving speed of a recording material bearing means which supports the recording material and moves with respect to the photosensitive member. Whereby, it is possible to adequately transfer the toner images onto the recording material in a superimposed fashion.