If there is paper in the paper tray, make sure it is straight. If the paper is curled, straighten it before printing. Sometimes it is helpful to remove the paper. Turn the stack over and put it back in the paper tray.

Reduce the amount of paper in the paper tray, and then try again.

Make sure that manual feed mode is not chosen in the printer driver.

Clean the paper pick-up roller. See Cleaning the paper pick-up roller.

Make sure that you have chosen the Manual in the Paper Source of the printer driver.

The printer can feed envelopes from the manual feed slot. You must set up your application to print on the size of envelopes you are using. This is usually done in the page setup or document setup menu of your software. (See your application manual.)

Clear the jammed paper. (See Paper jams and how to clear them.)

Make sure that the cable is connected to the printer.

Make sure the printer is powered on and that no error messages on the LCD.

Make sure that you have chosen the correct printer driver.

Change the printer driver setting in Media Type to a thin setting.

Lift up the support flap (1).