Question about HP DesignJet 450c InkJet Printer

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My 450c suddenly developed a problem with the cartridge light flashing,I've tried changing the 4 catridges cleaning and pressing all the buttons to no avail I can't get the machine to do anything.Has anyone any sugestions please. John

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John I suspect that the cartridge light is flashing too. Raise the cover to service the print cartridges, remove one cartridge at a time and reinsert it. While doing that watch the ready light. It should blink 3 times even with the lid raised to acknowledge a good cartridge. If one by one all the cartridges give 3-flash ready lights then the problem may not be cartridges or they may not be primed.

Posted on Dec 06, 2010

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