FAX-575/FAX-575e FAQs & Troubleshooting FAX-575/ FAX-575e Not your product? Sort by: Updated Date Popularity 2 Results 1. 11/19/2012 How do I improve the copy or fax quality? 2. 11/19/2012 Why are my sent faxes always received with a black vertical line down the page? Fax FAQs & Troubleshooting