As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 665 BUF-MCO, AIRCRAFT DIVERTED TO IAD DUE TO SMOKE FROM PRINTER, CIRCUIT BREAKER WAS PULLED AND SMOKE / AVIONICS CHECK LIST WAS COMPLETED. CONFIRMED PRINTER WAS THE SOURCE OF SMOKE. REMOVED AND REPLACED COCKPIT PRINTER IAW A320 AMM 31-35-22-04. OPERATIONAL TEST OF PRINTER OK IAW A320 AMM 31-35-00.