Epson Tray Porous Pad Assy CE31 IEI (1642141) is a replacement part listed in the EPSON L850 parts manual as reference 157. Its name identifies it as a porous pad assembly fitted in a tray, making it a specific component for printer servicing.
The CE31 designation helps distinguish this assembly within the parts list. It is catalogued for the EPSON L850, so the reference ties the part to that printer’s documented component layout.