FAX-1840C FAQs & Troubleshooting FAX-1840C Not your product? Sort by: Updated Date Popularity 2 Results 1. 11/22/2011 When I print, the pages are smudged with ink. What should I do? 2. 06/26/2009 One or more of my colors are not printing (blank). What can I do? Fax FAQs & Troubleshooting