Very probably a duplicate of #531342 "HP Color Printer-deletes print job before printing" (the wifi connection doesn't seem to be part of the bug). Don't hesitate to comment if you thing this is a different issue.
Very probably a duplicate of #531342 "HP Color Printer-deletes print job before printing" (the wifi connection doesn't seem to be part of the bug). Don't hesitate to comment if you thing this is a different issue.