Also if I have no items with priority indication ([A], [B], [C]) - then "PostScript Print Buffer" works just fine and gives printout just fine on all emacs versions, with all Linux/Windows hosts.
So may I suggest that it is the face of ([A], [B], [C]) priority marks what is confusing "PostScript Print Buffer" ? But as far as I could tell the "org-priority" face is not customized in my system: Org Priority face: [sample] State : STANDARD. Face used for priority cookies. [X] Inherit: INS DEL Face: (sample) font-lock-keyword-face INS Show All Attributes