Routine Maintenance- Page 140

Brother HL-4040CDN User's Guide

Table of Contents

USER’S GUIDE HL-4040CN/4040CDN/4050CDN/4070CDW
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Routine Maintenance

131

6

e

Clean the corona wire inside the drum unit by gently sliding the green tab from left to right and right to 
left several times. 

 

CAUTION

 

Be sure to return the tab to the home position 

a

 (1). If you do not, printed pages may have a vertical stripe.

 

f

Close the corona wire cover. 

 

g

Repeat step

d

 to 

f

 to clean each of the remaining corona wires.

1

1

2

2

2

2

1

1

1

1

1

2

2

2

2

1

1

1

1

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