Sharp DX-B450P - Manual (Page 113)

User’s Guide 9-3
Poor Print Quality
Troubleshooting
Black spots are printed. Is the correct type of paper used? Load the correct type of paper.
Is the Toner Cartridge defective or damaged?
Ensure that you are not printing outside the
non printable area. This is within 4 mm of the
paper edge Replace it with a new Toner Cartridge.
Black streaks are printed. Is the Toner Cartridge defective or damaged? Replace it with a new Toner Cartridge.
Dirt appears at equal
intervals. The feed route of the paper may be stained. Print a few pages to remove the stains.
Is the Toner Cartridge defective or damaged? Replace it with a new Toner Cartridge.
Hair-like streaks are
printed inside or outside
the black halftone areas. Are you using paper that has been left
unwrapped for a long period of time
(especially when the humidity is low)? Replace with paper from a new ream.
Status Items to check Action