Electrical interference / noise on ribbon cable? Ender 3 Pro
In order to install a tray I fastened the ribbon cable (the one going from the CPU to the control box) to the aluminium frame (using printed cable fastener). The printer is properly grounded through the mains.
Since then the LCD control screen occasionally behaves as if I press the menu button and jumps to another menu. After a while it returns to the main information screen. This happens only during print and it has no effect on the print.
I suspect that the ribbon cable is collecting electrical interference or noise from the alu-frame and so I plan to affix a ferrite bead to the cable. But if there is a better way I would like to know, of course.