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Service Guide OF1000
Chapter 4 Failure & Repair Analysis
RAP 22B: Dark Background Density
NOTE:
If dark background density is on the output upon receiving a fax, perform local copy before
assuming that your Okifax 1000 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 Okifax 1000 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 (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 Replace the sub-power supply board (PSUB-150).
Has the problem been resolved?
YES End of procedure.
NO Replace the printer control board (PCNT-150).
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)
Summary of Contents for OF1000
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