Firmware Upgrade for LA75X-SF Sheetfeeder

This Field Change Order (FCO) addresses an incompatibility between the LA75 serial printer and the LA75X-SF sheetfeeder. Printers with firmware version P1.7 or lower experience paper jams and improper operation when the sheetfeeder is attached. The document instructs technicians to verify the firmware level and, if P1.7 or lower, perform a ROM replacement to update the printer to version P2.0 or above. The FCO includes the necessary components (ROM, revision label, and documentation) and detailed, step-by-step installation instructions involving antistatic procedures and board-level component replacement.