DIFFICULTY

 

SUGGESTIONS

 

 

 

 

 

Copy Quality Difficulties

 

 

 

 

 

 

 

Vertical streaks appear

 

Sometimes you may see vertical streaks on your

in copies.

 

copies. Either the scanner or the primary corona

 

 

 

 

 

 

wire for printing is dirty. Clean them both.

 

 

 

 

 

 

(See pages 19-18to 19-20)

 

 

 

 

 

 

 

 

 

 

 

 

Print Quality Difficulties

 

 

 

 

 

 

 

Printouts are too dark or

 

Adjust the print conditions by setting the Print Density

too light.

 

setting. It has been factory set to the middle position.

 

 

 

 

 

 

(See Setting the Print Density, page 5-4.)

 

 

 

 

 

 

 

Printed pages contain

 

You may fix this by wiping the scanner windows

white stripes.

 

with a clean soft cloth. (See Cleaning the Document

 

 

 

 

 

 

Scanner, page 19-18and Replacing the Drum Unit,

 

 

 

 

 

 

 

 

 

 

 

 

page 19-23.) If you still see white stripes or faint

 

 

 

 

 

 

images and the LCD shows CHANGE DRUM

 

 

 

 

 

 

SOON, replace the drum unit with a new one.

White Stripes or

 

 

Check the machine’s environment. Conditions

Faint lmages

 

such as humidity and high temperatures may cause

 

 

 

 

 

 

this print defect to occur.

 

 

 

 

 

 

 

Printed pages are

 

Clean the machine’s interior and the primary

stained with toner or

 

corona wire of the toner cartridge. (See Routine

have vertical

 

Maintenance, page 19-18and Cleaning the Drum

stripes.

 

 

 

 

Unit, page 19-19.) 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 LCD shows CHANGE DRUM SOON,

Dark Stripes or

 

 

replace the drum unit with a new one.

Toner Stains

 

 

 

 

 

 

 

 

 

Printed pages have

 

Make sure that you use paper that meets the

white in black text and

 

specifications. Rough surface or thick media can

graphic areas.

 

cause the problem. If you still see white spots and

 

 

 

 

 

 

the LCD shows CHANGE DRUM SOON,

 

 

 

 

 

 

 

 

 

 

 

 

replace the drum unit with a new one.

 

 

 

 

 

 

Check the machine’s environment; conditions such

 

 

 

 

 

 

as high humidity may cause this situation to occur.

White Spots

 

 

 

 

 

 

 

 

 

 

19 - 12 T R O U B L E S H O O T I N G A N D R O U T I N E M A I N T E N A N C E