Improving the print quality; Examples of poor print - Page 129

Brother MFC-9440CN User's Guide

Table of Contents

USER’S GUIDE MFC-9440CN
Section II Fax
Section VI Appendixes
background image

Troubleshooting and routine maintenance

113

C

Improving the print quality

C

If you have a print quality problem, print a test page first (

Menu

4

2

3

). If the printout looks good, 

the problem is probably not the machine. Check the interface cable or try the machine on another 
computer.

Note

You can resolve a print quality problem by replacing a toner cartridge with a new one when the 
LCD shows the 

Toner Life End

 message.

 

Examples of poor print 
quality

Recommendation

White lines or bands or ribbing 
across the page

 

„

Make sure that the machine is on a solid level surface.

„

Make sure that the toner cartridges are installed properly. (See 

Replacing a toner cartridge

 on page 161.)

„

Shake the toner cartridges gently.

„

Make sure that the drum unit is installed properly. (See 

Replacing the 

drum unit

 on page 166.)

„

Make sure that you use paper that meets our specifications. A rough 
surfaced paper or thick print media can cause the problem. (See 

Acceptable paper and other media

 on page 9.)

„

Clean the laser scanner windows with a soft cloth. (Se

Cleaning the 

laser scanner windows

 on page 143.)

„

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

Replacing the drum unit

 on page 166.)

Colors are light or unclear on 
the whole page.

 

„

Make sure that the recommended paper was used. 

„

Change the paper to freshly unpacked paper.

„

Make sure that the front cover is closed properly.

„

Shake the toner cartridges gently.

„

Clean the laser scanner windows with a soft cloth. (Se

Cleaning the 

laser scanner windows

 on page 143.)

„

Turn off Toner Save. (See 

Toner save

 on page 24.)

White streaks or bands down 
the page

 

„

Shake the toner cartridges gently.

„

Clean the laser scanner windows with a soft cloth. (Se

Cleaning the 

laser scanner windows

 on page 143.)

„

One of the toner cartridges may be damaged. Identify the missing 
color and put in a new toner cartridge. (See 

Replacing a toner 

cartridge

 on page 161.)

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Detailed Information for Brother MFC-9440CN User's Guide

Lists of information found in Brother MFC-9440CN User's Guide - Page 129

  • 61.) „ Shake the toner cartridges gently.
  • 66.) „ Make sure that you use paper that meets our specifications.
  • 9.) „ Clean the laser scanner windows with a soft cloth.
  • 43.) „ The drum unit may be damaged.
  • 66.) Colors are light or unclear on the whole page.
  • 43.) „ Turn off Toner Save.
  • 24.) White streaks or bands down the page „ Shake the toner cartridges gently.
  • 43.) „ One of the toner cartridges may be damaged.
  • 61.) ABCDEFGHIJKLMNOPQRSTUVWXYZ.
  • 89. abcdefghijklmnopqrstuvwxyz.
  • 89. abcdefghijklmnopqrstuvwxyz.
  • 89. abcdefghijklmnopqrstuvwxyz.
  • 89. abcdefghijklmnopqrstuvwxyz.
  • 89. abcdefghijklmnopqrstuvwxyz.
  • 89. abcdefghijklmnopqrstuvwxyz.
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  • 89. abcdefghijklmnopqrstuvwxyz.
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