my business partner is on a macbook air, running high sierra. she's printed before in HS. but a few days ago, went to print a pdf, and it looked like ink smearing. we tested a number of things. printing in preview, acrobat reader, word. in every case, text prints fine, but images either don't print at all, or print as a black box. i tried a test user account; same thing. so a 'global' issue. her husband uses the same printer without issue. am having her run the 10.13.2 combo update, but... anyone? any ideas? suggestions? anyone else have this issue?