Maintenance. All signs/banners including supports, braces, hooks, anchors, and similar fastening devices shall be of substantial and sturdy construction, shall be kept in good repair and shall be painted or cleaned as often as necessary to maintain a clean, neat, safe and orderly appearance. If the Zoning Officer or his designee determines that any sign/banner has fallen into a state of disrepair, has become dilapidated, or constitutes a safety hazard, the sign owner and property owner shall be given written notice to correct the condition within seven days.