Please follow the instrution mention from the below URL
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00112149&cc=us&lc=en&dlc=en&product=422000
If still this should not resolve your problem then try this URL mention from the below

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00712074&cc=us&lc=en&dlc=en&product=422000
now still it not work then follow this URL mention from the below

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00587637&cc=us&lc=en&dlc=en&product=422000
now to follow all this you not resolve your issue then contact HP toll free number 1800-474-6836 they will replace your printe if its under warrantry priode

thanks
regards
Hamid

Please follow the instrution mention from the below URL
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00112149&cc=us&lc=en&dlc=en&product=422000
If still this should not resolve your problem then try this URL mention from the below

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00712074&cc=us&lc=en&dlc=en&product=422000
now still it not work then follow this URL mention from the below

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00587637&cc=us&lc=en&dlc=en&product=422000
now to follow all this you not resolve your issue then contact HP toll free number 1800-474-6836 they will replace your printe if its under warrantry priode