I have an HP printer that gives off an annoying squeak while printing. I have observed signs of rusting on the cylindical bar on which the print head travels, but that doesn't seem to be the source. The squeak instead appears to come from where the printhead parks when inactive(in the right corner of the print well).

Is this a sign of some required maintenance(lubrication?) or, could the printer be nearing the end of its useful life. Could HP help here?