Hp 7210xi officejet printer makes sound after power surge when plugged in but will not respond

SOURCE: HP Officejet d155xi

It sounds like you've done all the troubleshooting properly. I would contact HP or search their website for other users that have had similar problems. Also might be a good idea to check HP's site for new drivers, they change almost daily :)

SOURCE: printer alignment

hold down the enter button for 5 sec. then simultaneously press the menu button

SOURCE: hp officejet d135 series printer

Could be the printer carriage is binding, oil the rail and try again.

SOURCE: hp printer needs help

Remove the cartridges . and reinsert cartridges .
Ithink it will solve reset problem.
rafique

SOURCE: hp laserjet makes a continuous screeching noise when plugged in and will not print.

I have an identical situation. I have isolated the source of the loud screech to the (laser scanner assembly) p/n RGO-1041. The unit is located underneath the top cover, where the printed paper rests after it is ejected. I had to remove the right and left side covers, then remove the three screws holding down the top cover. There are two screws up front and one to the rear, it then lifts straight up. The laser scanner has a ribbon cable, and four purple wires going to it, oh yeah there is a big yellow warning label, so you can't miss it. I hope this helps. Sorry, I accidentally posted this in problem section.