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MFC-7440N > FAQ's & Troubleshooting > Print Problem > faq002256_004
If you have print quality problems, clean the drum unit as follows:
Do NOT use flammable substances near the machine. Do NOT use any type of spray to clean the inside or outside of the machine. Doing this may cause a fire or electrical shock.
If the print quality problems continue when you copy or fax a document, clean the scanner referring to the Related FAQs at the end of the page.
DCP-7030, DCP-7040, MFC-7340, MFC-7345N, MFC-7440N, MFC-7840W
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