Tools and information concerning the reverse engineering of a control panel from an Epson printer we found on the street.
The target controller is a Raspberry Pi Pico. You can find the pin mapping from the Pico to the control panel's flat flexible cable (FFC) in the pins.h file. You can run the panel off the Pico's 3.3V regulated output, but you'll need to find a way to generate 1.8V for pin 2 on the FFC if you're using the LCD panel.
The file LCD-reversing.md contains everything I was able to figure out about driving the LCD panel.