See 'Replacing the toner cartridge' on page 53.

Remove the toner cartridge and install a new one. If horizontally aligned black streaks or smears appear: The paper may not meet paper specifications.You may be printing on the wrong surface of the paper.Because of the composition of transparencies, some character voids are normal. If you are using transparencies, try another.Contact a service representative.Ĭharacter voids are white areas within parts of characters that should be solid black: If the problem persists, the printer may require repair.Remove the toner cartridge and install a new one.The toner cartridge may be defective and need replacing.The toner cartridge may not be installed properly.

Also try rotating the paper 180° in the tray. Turn over the stack of paper in the tray. Also try rotating the paper 180° in the tray.Įnsure that the paper is loaded properly.

Turn over the stack of paper in the tray.

Temperature and humidity can cause paper curl.

Ensure that the paper is loaded properly.

Dell 1235cn software