C250i cyan background

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  • goose
    Junior Member
    • Jun 2008
    • 7
    #1

    [Electrical] C250i cyan background

    Today I had a C250i with a cyan background and poor print quality on the copies. Demo page was reasonably ok as were the calibration sheets. This pointed to a scanner issue. When I looked at the scanner the, exposure leds were actually blue instead of white!

    I changed the exposure assembly with another machine and copies are now ok, exposure lamps are white.

    Just thought i'd share
    Tags: copies, cyan, exposure, scanner, white
    • tsbservice
      Field tech

      Site Contributor
      5,000+ Posts
      • May 2007
      • 7910
      #2
      Re: C250i cyan background

      Originally posted by goose
      Today I had a C250i with a cyan background and poor print quality on the copies. Demo page was reasonably ok as were the calibration sheets. This pointed to a scanner issue. When I looked at the scanner the, exposure leds were actually blue instead of white!

      I changed the exposure assembly with another machine and copies are now ok, exposure lamps are white.

      Just thought i'd share
      This is new machine? What about warranty?
      A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
      Blessed are they who can laugh at themselves, for they shall never cease to be amused.

        Comment

        • goose
          Junior Member
          • Jun 2008
          • 7
          #3
          Re: C250i cyan background

          Originally posted by tsbservice
          This is new machine? What about warranty?
          It was ex lease, I was repairing for a trader. Don't know the warranty status

            Comment

            • Albonline
              Service Manager

              1,000+ Posts
              • Sep 2008
              • 1131
              #4
              Re: C250i cyan background

              the exposure lamps are now RBG LEDs. needs all three channels to make white.

                Comment

                • tsbservice
                  Field tech

                  Site Contributor
                  5,000+ Posts
                  • May 2007
                  • 7910
                  #5
                  Re: C250i cyan background

                  Originally posted by Albonline
                  the exposure lamps are now RBG LEDs. needs all three channels to make white.
                  Means red led isn't emitting, good catch.
                  A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
                  Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                    Comment

                    • goose
                      Junior Member
                      • Jun 2008
                      • 7
                      #6
                      Re: C250i cyan background

                      Originally posted by Albonline
                      the exposure lamps are now RBG LEDs. needs all three channels to make white.
                      That's what I figured. There's no way they could emit blue otherwise! Could have been a poor connection, but have yet to test the "faulty" unit.

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