HP printer 5850 prints a test print automatically after each print command is executed!?

I have HP5850 deskjet printer that worked without any problems till I recently changed the black cartridge. It prints without any prompts a "test page" with heavy bars each time after a normal file is printed. Could some one please help fix this annoying and paper/ ink wasting phenomenon? I checked the... show more I have HP5850 deskjet printer that worked without any problems till I recently changed the black cartridge. It prints without any prompts a "test page" with heavy bars each time after a normal file is printed. Could some one please help fix this annoying and paper/ ink wasting phenomenon? I checked the various tabs under "print properties" for any unusual settings. Didn't notice any unusual settings.Thanks lot for the help.
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