Check up on toner level, maybe you need to replace the cartridge?
More Supplies To Buy Together With Kyocera DV9
More supplies for Kyocera Mita F 1000, 1000+, 1000A, 1010, 1200, 1200S, 2010, 2010A and Kyocera Mita Other 2000 Postscript, FBP01, Q8010 A that you can buy together with Kyocera DV9 Black Developer (Kyocera Mita DV-9):