Rap 21B Dark Background Density - OKIDATA OF2600 Service Manual

RAP 21B Dark Background Density

NOTE:
If a received fax has a dark background, make a local copy before assuming that the unit is defective. It is
possible that the transmitting facsimile is defective.
START
Has the image drum been exposed to external light?
YES Place the image drum cartridge into the unit and wait about 30 minutes before testing or replacing
image drum.
NO Is the fuser roller of the fusing unit dirty?
YES Clean the roller.
NO Is the cleaning roller contact (of the image drum) clean and properly touching the
high-voltage contact assembly?
NO Clean / Replace the high-voltage contact assembly.
YES Replace the image drum cartridge.
Has the problem been resolved?
YES End of procedure.
NO Verify LED Head Timing Adjustment and correct if necessary.
Has the problem been resolved?
YES End of procedure.
NO Replace the power supply board.
Has the problem been resolved?
YES End of procedure.
NO Replace the printer control board.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Service Guide OF2200/2400/2600
Chapter 2 Failure Analysis
Page: 79