BTroubleshooting and routine maintenance; Troubleshooting; If you are having difficulty with your machine- Page 58

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Troubleshooting

B

IMPORTANT

For technical help, you must call the country where you bought the machine. Calls must be 
made 

from within

 that country.

If you are having difficulty with your machine

B

If you think there is a problem, check the chart below and follow the troubleshooting tips. You can 
solve most problems by yourself.

If you need additional help, the Brother Solutions Center offers the latest FAQs and 
troubleshooting tips.

Visit us at http://solutions.brother.com/.

Troubleshooting and routine 

maintenance

B

Copy quality difficulties

Difficulties

Suggestions

Vertical black line appears in 
copies.

Black vertical lines on copies are typically caused by dirt or correction fluid on the 
glass strip (DCP-7040 only) , or the corona wire for printing is dirty. (See 

Cleaning 

the scanner glass

 on page 63 and 

Cleaning the corona wire

 on page 66.)