I had a c550 with paper stuck behind tray 4 and it took tray 4 out of the system. I removed the paper behind the tray and rebooted main power. Control panel was black and orange light on start button was on no other power on the machine.
I overnighted the two memory chips on MFP main pwb the control panel and machine come to life. While warming up boom got a c3304 code. I reached into my box of fans and replaced the ir power supply fan. Rebooted again and boom got a c3305 code. Another ir power supply fan code. Replaced that fan and machine came back to life and worked fine.
Had to share what a day.
I overnighted the two memory chips on MFP main pwb the control panel and machine come to life. While warming up boom got a c3304 code. I reached into my box of fans and replaced the ir power supply fan. Rebooted again and boom got a c3305 code. Another ir power supply fan code. Replaced that fan and machine came back to life and worked fine.
Had to share what a day.
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