Image forming device

Abstract

Abstract PURPOSE:To improve the use efficiency of a releasing agent while holding the offset prevention effect sufficiently, by changing the quantity of an offset preventing agent, which is applied to a rotary material or the like for image fixing, in accordance with changes of variable image forming conditions. CONSTITUTION:In accordance with changes of variable image forming conditions such as the change of the process speed for the copy of variable magnifications of expansion, reduction, etc., the image density of an original, or the like, the quantity of an offset preventing agent applied to a ortary material (such as a fixing roller) which fixes an unfixed image to a image supporting material such as a sheet of paper is changed. For example, the release liquid in a release liquid storage vessel 21 is transmitted by a felt 20 and is applied to a fixing roller 11 by an applying roller 19. The revolving speed of this applying roller 19 is changed by moving gears 26 and 27 through a plunger 29 by a magnification converting means 22.

Inventors

• 👤 Michiro Shigenobu
• 👤 重信　道郎

Bibliographic Details