Contamination on the Back Side of Prints
Problem
The back side of the printed output contains contamination. The contamination is a specific toner defect of 10–15 mm wide running from long-edge (LE) or trail-edge (TE), and is near the outboard (OB) side of the print.
Solution
• Contamination can be media related.
▪ Look for paper damage, paper dust, or environmental conditions that may contribute.
▪ Ensure the media is fresh and properly loaded in the tray.
• Defects occur on heavyweight stock with lightweight stock settings. Manage the Stock Library for the media in use. Refer to Editing an Existing Stock in the Stock Library.
• Contamination can be media related. Look for paper damage, paper dust, or environmental conditions that may contribute. Ensure media is fresh and properly loaded in the trays.
• If the defect is the specific streak on the back of prints, there may be a secondary-bias transfer roll (2nd BTR) failure. Perform the Cleaning the Fuser Assembly with Paper procedure. If the problem continues, contact the customer support center.