HP DESKJET 990cxi - cartridge error message

  Dewi 11:53 07 Mar 2003
Locked

Error light shows colour cartridge either imprperly installed,the wrong cartridge for the printer or defective.
Compatible cartridge worked perfectly until suddenly the above error message came up.
I tried re installing but the error message still shows.
I then replaced the cartridge with a new (compatible from Tonik - being an original HP refilled) but the error message still comes up.
Any ideas how I can get rid of this error message

  Derek 12:58 07 Mar 2003

Locate the website for HP. Click on printer support, you'll find it somewhere. Answer the long winded questions and ultimately you'll get through to a trouble shoot page dedicated to your printer. Failing that, send an email to them, the addresses are all listed.

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