When I change the ink setting from PK to MK, the printer makes the switch. But whether I make the change on the printer screen itself or through the Print Settings in Photoshop, the first attempted print switches the ink back to PK. The Print Settings page shows that I've selected a matte paper, and the selected ink is MK. But the printer always switches back to PK before printing begins, which doesn't look particularly good as you can imagine. Suggestions?