Service Manual for OKIPAGE 8zChapter 6 Troubleshooting ProceduresPage: 63(2) Dark background densityHas the OPC drum being exposed to external light?Yes - Set the OPC drum in the OKIPAGE 8z and wait for about 30 minutes.No - Is the heat roller of the heat assy dirty?Yes - Clean the heat roller.No - Is the terminal of the EP image drum unit in correct contact with the contact plate? (See Figure 6-4 D andFigure 6-5 D.)No - Contact the terminal correctly.Yes - Replace the EP image drum unit.Has this error been recovered?Yes - EndCaution: After replacing the EP image drum unit, reset the drum counter. Refer to "Replacing the Image DrumCartridge" in the "User's Manual".No - Replace the main control board or high-voltage power supply board.Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange(BPX) for any updates to this material. (http://bpx.okidata.com)
