画像形成装置

Image forming apparatus

Abstract

【課題】 転写材の全域に印字することによって転写手段にトナー汚れが生じても、転写材裏面には汚れが転写されない画像形成装置を提供すること。 【解決手段】 転写材の全域に印字可能とした全域印字モードを有し、複数の像担持体上のトナー像を、一旦、中間転写体に1次転写し、当該中間転写体上のトナー像を2次転写手段を介して一括して転写材に2次転写する画像形成装置において、前記2次転写手段の転写に係わる部材の転写材搬送方向に対する長さが、当該画像形成装置の通紙可能な最長の転写材に所定の長さを付加した長さよりも長いことを特徴とする画像形成装置。 【選択図】 図2
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus that can prevent contamination from being transferred to the rear face of a transfer material even when a transfer means is contaminated with toner because the entire area of the transfer material is printed. <P>SOLUTION: The image forming apparatus has an entire region print mode that allows the entire region of a transfer material to be printed and is operated to primarily transfer toner images on a plurality of image carriers once to an intermediate transfer body and then to secondarily transfer the toner images on the intermediate transfer body together by a secondary transfer means onto a transfer material, wherein the length of a member relating to transferring of the secondary transfer means in the conveying direction of the transfer material is longer than the sum length of the longest transfer material that can be fed to the image forming apparatus and a predetermined length. <P>COPYRIGHT: (C)2007,JPO&INPIT

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