Posted this, & got one attachment, but it only shows
problems, & no actual repair tricks!

A friend has a Lexmark all-in-one scanner/printer/fax,
it showed low ink, they replaced ink, & still no printing!
I know the stand alone printers have the same problems!
Can you easily clean the print heads? Any common "tricks",
to get it working? It's in perfect shape! Thanks, Rono.