If your HP printer is facing offline issue then this means there is some connection fault. If you have already checked the wire connections and it seems to have no issues them there is internal technical error. In such situation, you must not take any risk. Connect with the technical assistance group and know the solution for offline problem. They are working into this profession from many years. Thus, they will answer you back without taking your time. Experts are very much dedicated and so they will guide you the steps to rectify the solution until you resolve the issue. https://www.hpprintersupportpro.com/blog/stop-my-hp-printer-from-going-offline/