Streaky printing is a sign that the printer head needs cleaning. The printer will do this automatically by clicking on the printer icon, then following the instructions to clean the nozzles. A test page will be printed and you can make further adjustments by following the prompts.
When installing a new printer, be sure to uninstall the old printer or change the default printer. If you don't do this you will actually be sending your printing jobs to a printer that is no longer hooked up to the computer.
Many new printers will test and calibrate when they are turned on after being off for a while or not being used. This calibration can take several minutes on some of the larger laser type printers and this is perfectly normal.
