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  • Users: whnewhouse
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  1. whnewhouse

    HP 4550 Color prints blank pages after new drum install

    I recently replaced the drum unit C4195A for the HP 4550 Color laser. Now all I get are blank pages!! I followed the instructions, but now I get nothing!! Any ideas? Thanks!
  2. whnewhouse

    HP 4550 Vertical Black lines

    Hi - We are a non profit, and had an HP 4550n color laser donated with full toner cartridges, and a drum indicating about 20% life left. When we initially ran configuration reports and the test print (full color sample) everything looked great! Then later trying to run 10 copies of a brochure...

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