14 - 16; Black toner marks across ; White lines across the page- Page 241

Brother DCP-8020 User's Guide

2014 Dodge Charger SRT Owner Manual

Table of Contents

8 How to scan using Windows®
9 Using the Brother Control Center (For Windows® 95/98/98SE/Me/2000 Professional and Windows NT® WS...
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TROUBLESHOOTING AND ROUTINE MAINTENANCE   

14 - 16

Black toner marks across 

the page

The drum unit may be damaged. Put in a new drum unit. (See 

Replacing 

the drum unit

 on page 14-30.)

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

About 

paper

 on page 2-1.)

If you use label sheets for laser printers, the glue from the sheets may 
sometimes stick to the OPC drum surface. Clean the drum unit. (See 

Cleaning the drum unit

 on page 14-23.)

Do not use paper that has clips or staples because they will scratch the 
surface of the drum.
If the unpacked drum unit is in direct sunlight or room light, the unit may 
be damaged.

White lines across the page

Make sure that you use paper that meets our specifications. A rough 
surfaced paper or thick print media can cause the problem.
Make sure that you select the appropriate media type in the printer 
driver. 
The problem may disappear by itself. Try printing multiple pages to clear 
this problem, especially if the printer has not been used for a long time.
The drum unit may be damaged. Put in a new drum unit. (See 

Replacing 

the drum unit

 on page 14-30.)

Lines across the page

Clean the inside of the printer and the primary corona wire in the drum 
unit. (See 

Cleaning the drum unit

 on page 14-23.)

The drum unit may be damaged. Put in a new drum unit. (See 

Replacing 

the drum unit

 on page 14-30.)

Black lines down the page

Printed pages have toner 
stains down the page.

Clean the primary corona wire of the drum unit.
Make sure the primary corona wire cleaner is at the home position (

â–²

). 

The drum unit may be damaged. Install a new drum unit. (See 

Replacing 

the drum unit

 on page 14-30.)

The toner cartridge may be damaged. Put in a new toner cartridge. (See 

Replacing the toner cartridge

 on page 14-24.) Make sure that a torn 

piece of paper is not inside the printer covering the scanner window.
The fixing unit may be smudged. Call Customer Service.

White lines down the page

You may clear the problem by wiping the scanner window with a soft 
cloth. (See 

Cleaning the printer

 on page 14-22.)

The toner cartridge may be damaged. Put in a new toner cartridge. (See 

Replacing the toner cartridge

 on page 14-24.)

Page skewed

Make sure the paper or other print media is loaded properly in the paper 
tray and that the guides are not too tight or too loose against the paper 
stack.
Set the paper guides correctly.
If you are using the manual feed tray (or the multi-purpose tray). (See 

How to load paper

 on page 2-5.)

The paper tray may be too full.
Check the paper type and quality. (See 

About paper

 on page 2-1.)

Examples of poor print 
quality

Recommendation

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0 1 2 3 4

ABCDEFGH
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A B C D
a b c d e
0 1 2 3 4

ABCDEFGH
abcdefghijk

A B C D
a b c d e
0 1 2 3 4

ABCDEFGH
abcdefghijk

A B C D
a b c d e
0 1 2 3 4

ABCDEFGH
abcdefghijk

ABCD
abcde
01234

ABCDE

FGH

abcdefg

hijk

A B C D
a b c d e
0 1 2 3 4

Detailed Information for Brother DCP-8020 User's Guide

Lists of information found in Brother DCP-8020 User's Guide - Page 241

  • 1.) If you use label sheets for laser printers, the glue from the sheets may sometimes stick to the OPC drum surface.
  • 23.) Do not use paper that has clips or staples because they will scratch the surface of the drum.
  • 23.) The drum unit may be damaged.
  • 24.) Make sure that a torn piece of paper is not inside the printer covering the scanner window.
  • 22.) The toner cartridge may be damaged.
  • 24.) Page skewed Make sure the paper or other print media is loaded properly in the paper tray and that the guides are not too tight or too loose against the paper stack.
  • 5.) The paper tray may be too full.

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