| 摘要 |
PURPOSE:To form high-quality image at a high speed and to reduce the size of constitution, by providing holes, at positions which do not opposite to the slit of a developing electrode directly, a top of the developing-solution supply pipe and by jetting a developing solution uniformly from the slit. CONSTITUTION:Holes 7 formed at a tip part 6 installed in the developing head of a developing-solution supply pipe do not oppose to a slit 8 directly and flows a developing solution toward the wall of a hollow can 1 or a part except the slit 8 of an electrode 2. Then, the developing solution fills the developing head temporarily to jet downward from the slit 8 as an uniform flow free of flow-quantity and flow-rate irregularity and then to flow in many holes 12 of a latent-image carrier sheet supporting plate 3. When a latent-image carrier sheet 5 passes between the electrode 2 and supporting plate 5, a large amount of the developing solution comes into contact with its surface instantaneously, so a deficiency in starting development, irregularity of development density, occurrence of edge effect and white, etc., are prevented. |
