| 摘要 |
<p>PURPOSE:To surely perform the next attracting work with an electric potential sufficiently decreased, while a conveying belt rotates by one turn, by providing a control means which controls an attracting charged device being based on a detection signal from a humidity detecting means. CONSTITUTION:A sheet S, stored in a cassette C, is fed to paired resist rollers 7 by a paper feed roller 6, held to a conveying belt 12 and conveyed by the paired resist rollers 7. Then the sheet S is conveyed by paired resist rollers 11 synchronizing with a picture image on a sensitized drum 15. And the sheet S is conveyed to a picture image forming part 3a being attracted to the conveying belt 12 by an attracting charged device 22. Here a humidity sensor 23 detects humidity in a machine 5 in the vicinity of the conveying belt 12, and a CPU25 receives a detecting signal from the sensor 23 through an interface 26. The CPU25, being based on the detecting signal from the sensor 23, controls a current value of the attracting charged device 22 through an attracting charge control circuit 27, obtaining attracting force to a fixed value.</p> |
