Using paper of the wrong size, thickness, or type.

Use paper of the correct size, thickness, or type. For details, see Supported Paper.

Paper type is set incorrectly in the print driver.

Ensure that the paper type is set correctly in the driver and that the paper is loaded in the correct tray. For details, see Supported Paper.

Paper is loaded in the wrong tray.

Ensure that paper is loaded into the correct tray. For details, refer to Supported Paper.

Tray is loaded with mixed paper.

Load the tray with only one type and size of paper.