FAQs & Troubleshooting

Black toner marks appear across the page.

• The drum unit may be damaged. Put in a new drum unit. To see how to replace the drum unit, click here.
• Make sure you use paper that meets the paper specifications. To see what kind of paper you can use, click here.

• If you use label sheets for laser printers, the glue from the sheets may sometimes stick to the OPC drum surface. Clean the drum unit. 
• Do not use paper that has clips or staples because they will scratch the surface of the drum. 
• If the unpacked drum unit is subjected to excessive direct sunlight or room light, the unit may be damaged.