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Student
Posts: 1
Member Since: ‎04-03-2012
Message 1 of 2 (906 Views)

My HP Deskjet 6940 indicator lights keep flashing after putting in new ink cartridges

I tried reinserting them over and over and the lights keep flashing.  Could the contacts need cleaning and what can I use without doing damage?

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Student
Posts: 1
Member Since: ‎04-03-2012
Message 2 of 2 (895 Views)

hpf4180 changed cartridge error E showing, black cartridge flashing

hpf4180 changed cartridge error E showing, black cartridge flashing light.

Taken out cartridge few times and installed, but no luck.

Has had very little use

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