Filter
Top Products
126 Chapter 18
Printed pages are stained with
toner or have vertical stripes.
Dark Stripes or Toner Stains
Clean the machine’s interior and the primary corona wire of drum
unit. (See Regular Maintenance, page 130 and Cleaning the Drum
Unit, page 131.) Make sure that the tab of the corona wire is at the
home position. If after cleaning, you still see dark stripes or toner
stains and the display shows CHANGE DRUM SOON, replace the
drum unit with a new one.
Printed pages have white
spots in black text and
graphic areas.
White Spots
Make sure that you use paper that meets the specifications. Rough
surface or thick media can cause the problem. If you still see white
spots and the display shows CHANGE DRUM SOON, replace the
drum unit with a new one.
Toner scatters and stains the
printed page.
Scattering Toner
Adjust the print conditions by setting the Print Density function.
Clean the machine’s interior. (See Regular Maintenance, page 130
and Cleaning the Drum Unit, page 131.) Make sure that you use
paper that meets specifications. (See Acceptable Paper, page 62.) If
you still have scattered toner and the display shows CHANGE
DRUM SOON, replace the drum unit with a new one.
The whole page is printed
black.
Black Page
Wipe the electric terminals. (See Regular Maintenance, page 130
and Cleaning the Drum Unit, page 131.) Also, do not use heat-
sensitive paper as it will cause this problem. After cleaning, if the
printed pages are still black and the display shows CHANGE
DRUM SOON, replace the drum unit with a new one.
Nothing is printed on the
page.
White page
Make sure that the toner cartridge is not empty. Wipe the electric
terminals referring to Regular Maintenance, page 130 and Cleaning
the Drum Unit, page 131. Make sure that a torn piece of paper does
not remain on the scanner window.
Printed pages are marked
regular intervals.
Example of Regular Marking
Markings may disappear by themselves. Try copying at multiple
pages to clear this problem. Markings may occur if the machine has
not been used for a long time. A possible cause is that the surface of
the drum is marked or damaged by excessive exposure to light. In
this case, replace the drum unit with a new one.
DIFFICULTY SUGGESTIONS