JPH0267367U

JPH0267367U -

Info

Publication number: JPH0267367U
Application number: JP14534388U
Authority: JP
Priority date: 1988-11-09
Filing date: 1988-11-09
Publication date: 1990-05-22
Anticipated expiration: 2003-11-09
Also published as: JPH08683Y2

Description

[Brief explanation of drawings]

第１図は本考案の実施例のクリーニング装置を
中心に示す断面図、第２図はそのクリーニング装
置の斜視図、第３図はその正面図、第４図は他の
実施例のバツクアツプローラ付近の正面図、第５
図は本考案が適用されるカラー複写機の全体概略
構成を示す側断面図、第６図はその転写ドラムの
構成を示す斜視図である。１……感光体ドラム、５……転写ドラム、１０
……円環部、１１……連結部、１２……可撓性シ
ート、２０……転写ドラムクリーニング装置、２
１……クリーニング部材（フアーブラシローラ）
、３０……バツクアツプローラ装置、３１……バ
ツクアツプローラ、３２……レバー、３４……位
置規制部材。 FIG. 1 is a sectional view mainly showing a cleaning device according to an embodiment of the present invention, FIG. 2 is a perspective view of the cleaning device, FIG. 3 is a front view thereof, and FIG. 4 is a back-up propeller of another embodiment. Nearby front view, 5th
The figure is a sectional side view showing the overall general structure of a color copying machine to which the present invention is applied, and FIG. 6 is a perspective view showing the structure of its transfer drum. 1...Photosensitive drum, 5...Transfer drum, 10
... Annular part, 11 ... Connection part, 12 ... Flexible sheet, 20 ... Transfer drum cleaning device, 2
1...Cleaning member (fur brush roller)
, 30... Backup roller device, 31... Backup roller, 32... Lever, 34... Position regulating member.

Claims

[Claims for Utility Model Registration] (1) A metal frame consisting of annular parts at both ends of the drum and a connecting part that connects them in the axial direction;
formed into a hollow cylindrical shape by a dielectric flexible sheet held at both ends in the circumferential direction by the connecting part and wound around the frame with both ends along the outer peripheral surface of the annular part, The connecting portion has a transfer paper leading end gripping means, which rotates in synchronization with the photoreceptor drum at the same peripheral speed, and the leading end is gripped by the gripping means and electrostatically attracted to the flexible sheet. In a transfer drum of a color copying machine that sequentially overlays and transfers toner images of different colors sequentially formed on a photoreceptor onto a wrapped transfer paper, a transfer paper supporting surface of a flexible sheet of the transfer drum is used. a cleaning member that is in pressure contact with and cleans the support surface; a cleaning member that is opposed to the cleaning member with a flexible sheet sandwiched therebetween and is in pressure contact with the inner surface of the flexible sheet so that the flexible sheet maintains a predetermined cylindrical surface; A transfer drum comprising: a backup member that supports the backup member; and a regulating member that regulates a position where the backup member presses against a flexible sheet. (2) A claim characterized in that the above-mentioned position regulating member regulates the position of the back-up member to a position such that the back-up member slightly protrudes radially outward from a predetermined circumferential inner surface of the flexible sheet. The transfer drum according to item 1. (3) The transfer drum according to claim 1, wherein the backup member is made of a conductive material and is grounded.