Kyocera FS-C5200DN - Murata PCPH0550 power supply board 2 - Texas Instruments LM224 - Quadruple Operational Amplifiers
<a href="//commons.wikimedia.org/wiki/User:Raymond" title="User:Raymond">Raimond Spekking</a>
<span class="int-own-work" lang="en">Own work</span>