I have been using HP Office Jet Pro 6978 with Windows 10. I cannot print any document now because I am getting 0x6100004a error. I looked up this error and tried to look for any paper in side the printer, in the document feeder and paper tray. Nothing there. The Ink cartridge does not move from the right most position while maintenance of the printer attempts to start. This is second printer in two years. I don't want to throw this printer. I would like to fix it. Any help will be useful. I tried the Virtual Assistant from HP, I followed all the steps. It could not solve the issue.