lanier 5415 mfd locking up

[Godsmack]

Have a 5415 that is spiking the logic,causing the buttons on the cnl panel to be inop,and shutting it off and turning back on resets it but you have to reset the country code back to USA.I replaced the logic and eprom,power supply and control panel pwas in that order with no luck.Any Ideas
Thanks

main charge issues, maybe?

[Godsmack]

I had them replace the toner cartridge/pcu that contain the drum,charge roller,dev etc to no affect.Also it has codes for HVPS leaks,not once have they gotten a code.