The machine’s operation panel is a flat touchscreen. When you remove the panel and set it aside temporarily, be sure to lay it down with the screen face up so as not to damage the screen.
When you dismantle the removed operation panel (PCB13), be sure to do it on the service mat [A] spread on the exposure glass.
If you place the operation panel (PCB13) directly on the exposure glass or other flat surface and apply strong pressure to the entire panel, air may leak from the gap in the panel, causing such problems as a coordinate deviation and detection error.