| 摘要 |
PURPOSE:To avoid medicine from a transfer roller from adhering to a photosensitive body and to prevent image quality from being deteriorated by inserting a shielding substance between the photo-sensitive body and the transfer roller when the photosensitive body is stopped. CONSTITUTION:Two driven rollers for carrying a shielding sheet 19 are provided on both sides of a 1st rotary shaft 15 being the rotary shaft of the transfer roller 18, and a driving roller for carrying a shielding sheet 24 is provided on a 2nd rotary shaft 16 juxtaposed with the 1st rotary shaft 15, then a shielding sheet carrying belt 25 is laid and a shielding sheet 26 is stretched between both belts 25. A controller controls the driving of the 2nd rotary shaft 16 based on the signal of a photosensor 27 so that the sheet 26 may be inserted between the photosensitive body 6 and the transfer roller 18 when the photosensitive body 6 is stopped, and the sheet 26 may be removed when it is rotated. Therefore, the transfer roller 18 comes in contact with the photosensitive body 6 through the sheet 26 when the photosensitive body 6 is stopped, whereby the medicine does not adhere to the photosensitive body 6 even when it is soaked from the roller 18. |
