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 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.

Dark Stripes or Toner Stains

 

 

 

 

 

 

Printed pages have white

Make sure that you use paper that meets the specifications. Rough

spots in black text and

surface or thick media can cause the problem. If you still see white

graphic areas.

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.

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.

Scattering Toner

 

 

 

 

 

 

The whole page is printed

Wipe the electric terminals. (See Regular Maintenance, page 130

black.

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.

 

 

 

 

 

 

Black Page

 

 

 

 

 

 

 

Nothing is printed on the

Make sure that the toner cartridge is not empty. Wipe the electric

page.

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.

 

 

 

 

 

 

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

 

 

 

 

 

 

 

126Chapter 18