77TroubleshootingInside of the machine is dirty. When performing duplex printing, if the specified page size does not match theactual size of paper loaded in the paper source, the inside will become stainedwith ink, causing printed paper to become smudged.Perform the Bottom Plate Cleaning to clean the inside of the machine.For details on cleaning, see “Cleaning the Inside of the Machine (Bottom PlateCleaning)” on page 65.NoteTo prevent the inside of the machine from stains, set the page size correctly.Printing on inappropriate type of paper. z Check to see if the paper you are printing on is not too thick or curled.See “Media Types You Cannot Use” on page 10.z When performing Borderless Printing, print quality may be reduced at the topand bottom edges of the paper. Make sure that the paper you are using issuitable for Borderless Printing.For details, refer to “Printing Area” in the User’s Guide on-screen manual.Paper is curled. If you are using paper with either any of the corners or the whole printingsurface curled, the paper may become dirty, not feed properly, or both. Use suchpaper after correcting paper curl as follows.(1)With the printing side (A) facing up, cover the paper with a fresh sheet ofplain paper to avoid staining or scratching the surface.(2)Roll up the paper in a direction opposite to paper curl as seen below.(3)Check to see that the paper curl is within approximately 0.08 to 0.2 inches / 2to 5 mm (B) in height.We recommend printing curl-corrected paper one sheet at a time.NoteDepending on the media type, the paper may be smudged or may not be fedproperly even if it is not curled.In such case, follow the procedure described above to curl the paper beforeprinting.This may improve the print result.Cause Action(1) (2)(A)(A)(B)
