Useful to knowThe machine does not print.• Open the print queue list and remove the document from thelist (see "Canceling a print job" on page 55).• Remove the driver and install it again (see "Installing the driverlocally" on page 30).• Select your machine as your default machine in your Windows(see "Setting your machine as a default machine" on page218).Where can I purchase accessories or supplies?• Inquire at a Samsung distributor or your retailer.• Visit www.samsung.com/supplies. Select your country/regionto view product service information.The status LED flashes or remains constantly on.• Turn the product off and on again.• Check the meanings of LED indications in this manual andtroubleshoot accordingly (see "Understanding the status LED"on page 109).A paper jam has occurred.• Open and close the scan unit (see "Front view" on page 20).• Check the instructions on removing jammed paper in thismanual and troubleshoot accordingly (see "Clearing paperjams" on page 103).Printouts are blurry.• The toner level might be low or uneven. Shake the tonercartridge (see "Redistributing toner" on page 80).• Try a different print resolution setting (see "Opening printingpreferences" on page 56).• Replace the toner cartridge (see "Replacing the tonercartridge" on page 82).Where can I download the machine’s driver?• You can get help, support application, machine drivers,manuals, and order information from the Samsung website,www.samsung.com > find your product > Support orDownloads.