| 摘要 |
PURPOSE:To immediately supply an alternate cleaning web by providing the plural cleaning web devices and making one of these selectively act to a fixing roller. CONSTITUTION:It is assumed that either a web cartridge K1 or K2, for example, the cleaning web of the cartridge K1 is pressed to the fixing roller 1. The cleaning web of a web roller on the feed-out side of the cartridge K1 is exhausted; then a sensor without the web, which has been outputting H so far, changes to output L. The sensor outputs L, then the starting signal of a motor M3 is outputted from the means which transfers the take-up driving to the web cartridge, the motor M3 is rotated to make a lever 6 half-rotate centering a pin 6a. A slide 1K1 carries the cartridge K1 and moves in the direction apart from the roller 1, then the cartridge K2 is pressed to the roller 1 by this. The automatic exchange of web is finished. |
