User guide Advanced menu95Settings for paper with darkback (Pap.back)Select the Pap.back (3) menu.Setting options: normal/darkDefault setting: normalPap.back = normal is the standard for normal paper.Pap.back = dark can be set to process paper with a gray back.Paper with a completely black back side cannot be used if theink is carbon-based. However, the printer can handle aniline-based black paper (undefined colors).Confirm the setting by pressing the Set (1) key. Change to the nextparameter group with the Next key (4).Single Pap.backBack Next OnlineSetup21 3 4Pap.back=normal*Set < > Exit OnlineSetup21 3 4