Operation panel utilized for image-forming apparatus and image-forming apparatus

An image-forming apparatus, comprising:

• an image-forming section:
• and
• an operation panel, which is detachably or movably mounted onto said image-forming apparatus, and which includes a data-inputting section to input operational data necessary for operating said image-forming apparatus and/or a displaying section to display status information of said image-forming apparatus;
• wherein said operation panel comprises:
• a circuit board, on which electronic parts, constituting electronic circuits for driving said data-inputting section and/or said displaying section, are mounted;
• a supporting member to support said circuit board, said data-inputting section and/or said displaying section, so as to integrate them into a single unit serving as said operation panel;
• a signal line, connected to a connecting port of said image-forming section, through which electronic signals are communicated between said operation panel and said image-forming section;
• and
• a conductive member for directly grounding at least one of said data-inputting section, said displaying section and said circuit board to a conductive main-frame of said image-forming apparatus, which is maintained at a ground-potential of said image-forming apparatus;
• and
• wherein said signal line and said conductive member are disposed at separate positions being different relative to each other.