| 摘要 |
PROBLEM TO BE SOLVED: To provide a powder developer jetting type image-forming apparatus which prevents a dot formed on a recording medium from spreading and being oval by enhancing a density of a developer held by a developer carrying roller. SOLUTION: In the powder developer jetting type image-forming apparatus, a pulse 40 for urging a developer 18 held by a developer carrier 12 towards a back electrode 20 is impressed to an individual electrode 36 from an image controlling part 38, whereby the developer 18 held by the developer carrier 12 flies through a through hole 34 of a diaphragm 26 to adhere to a recording medium 28 between the diaphragm 26 and the back electrode 20. A conductive member 44 is further set to the apparatus, which is arranged at the upstream side of the individual electrode 36 in a transfer direction of the developer 18 and in touch with the developer 18 to press the developer 18 to the developer carrier 12 when a voltage of an equal polarity to the developer 18 is impressed thereto.
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