| 摘要 |
PROBLEM TO BE SOLVED: To surely perform communication even when a communication line is affected by noise due to discharge which is unavoidably caused, when an inter-peak voltage at which the discharge starts, is detected. SOLUTION: An image forming apparatus includes: a photoreceptor drum; a developing roller that supplies toner to the photoreceptor drum; a developing bias application part that applies a voltage to the developing roller; a detecting part that detects discharge caused between the developing roller and the photoreceptor drum; a main control section that gives an instruction for a voltage to be output by the development bias application part; a high voltage control section that receives the instruction by communicating with the main control section and controls the voltage output by the development bias application part; and a first communication line for connecting the main control section to the high voltage control section so that they can communicate with each other. When an inter-peak voltage at which the discharge starts between the photoreceptor drum and the developing roller is detected, the main control section and the high voltage control section increase the number of re-tries in which the same data are re-transmitted, compared to the case of printing. COPYRIGHT: (C)2010,JPO&INPIT
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