OP24-12 004-38-010-UOM

According to the manual, you can get a Rannai conversion kit for the RHFE263FA-P to convert it to NG. This is indicated on page 52 (54 of the PDF) of the manual available here: https://www.alpinehomeair.com/related/Rinnai_RHFE-263FA_Owners_Manual.pdf . The natural gas orifice is part AU129-210 02-1.30(0.051"). This looks like the correct conversion kit: https://www.swansond.com/storefrontCommerce/itemDetail.do?item-id=1057&order-quantity=1&item-index=0&customer-item=308F-2070-1&order-uom=EA&warehouse-id=1&item-number=308F-2070-1 . Please note: you should get a professional to do the conversion.

I hope this helps.

Cindy Wells

Download the drivers here:
http://www.cc.uom.gr/pub/DRIVERS/NETWORK/D-LINK/DFE-530TX/

slt ma cam s'appele Uom 325 j'ai perdu ts ses accesoires (cd d'installation) j'ai trouvé un driver mais ca marche pas j'ai besoin d'un cd d'installation

Your platen roller (the black rubber roller) isn't smooth in that spot. Maybe it has be nicked or cut there or has something stuck onto it. If it's cut you will have to replace it, otherwise try cleaning it with high percentage isopropyl alcohol.