DIFFICULTY

SUGGESTIONS

Printed pages are stained with

Clean the machine’s interior and the primary corona wire of drum

toner or have vertical stripes.

unit. (See Regular Maintenance, page 139 and Cleaning the Drum

 

 

 

 

 

Unit, page 141.) 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.

Dark Stripes or Toner Stains

 

 

 

 

 

 

Printed pages have white

Make sure that you use paper that meets the specifications. (See

spots in black text and

Acceptable Paper, page 64.) Rough surface or thick media can

graphic areas.

cause the problem. If you still see white spots and the display shows

 

 

 

 

 

CHANGE DRUM SOON, replace the drum unit with a new one.

 

 

 

 

 

 

 

 

 

 

 

 

White Spots

 

 

 

 

 

 

 

Toner scatters and stains the

Adjust the print conditions by setting the Print Density function.

printed page.

(See Setting the Print Density, page 28.) Clean the machine’s

 

 

 

 

 

interior. (See Regular Maintenance, page 139 and Cleaning the

 

 

 

 

 

 

 

 

 

 

Drum Unit, page 141.) Make sure that you use paper that meets

 

 

 

 

 

specifications. (See Acceptable Paper, page 64.) If you still have

 

 

 

scattered toner and the display shows CHANGE DRUM SOON,

Scattering Toner

 

 

 

 

 

replace the drum unit with a new one.

 

 

 

 

 

 

The whole page is printed

Clean the machine’s interior and the primary corona wire of the

black.

drum unit. (See Regular Maintenance, page 139 and Cleaning the

 

 

 

 

 

Drum Unit, page 141.) Also, do not use heat-sensitive paper as it

 

 

 

 

 

 

 

 

 

 

will cause this problem. After cleaning, if the printed pages are still

 

 

 

 

 

black or the display shows CHANGE DRUM SOON, replace the

 

 

 

 

drum unit with a new one. The drum unit may be damaged.

 

Black Page

 

 

 

 

 

 

Nothing is printed on the

Make sure that the toner cartridge is not empty. If the toner cartridge

page.

is empty, replace the toner cartridge. (See Replacing the Toner

 

 

 

 

 

Cartridge, page 142.)

 

 

 

 

 

 

 

 

 

 

 

White page

 

 

 

 

 

 

 

Printed pages are marked

Markings may disappear by themselves. Try copying at multiple

regular intervals.

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.

 

 

 

 

Example of Regular Marking

 

 

 

 

 

 

 

134Chapter 18