Unable to scan or fax

Unable to scan or fax. I have a HP Officejet 6110 all-in-one printer, copyer, scanner and fax machine. I have never used the scanner and the fax simply stopped working after years of service. The printer and copyer are fine. When I call HP they try to sell me a new, updated machine. This one is fine, fast enough for my needs and has always been very reliable. Unfortunately I cannot locate my printer's manual. I paid $15 to get help from HP, but was cut off and could not re=instate.
Now, after 2 months, I'm ready to resume. I need help to get my fax and scanner to work. Thanks for anyone who can help me.