Brother HL-4070CDW

User Manual - Page 137

For HL-4070CDW. Also, The document are for others Brother models: HL-4040CN, HL-4040CDN, HL-4050CDN

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HL-4070CDW photo
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Routine Maintenance
128
6
Cleaning the corona wires 6
If you have print quality problems, clean the corona wires as follows:
a Turn off the printer power switch. Press the front cover release button and then open the front cover.
b Hold the green handle of the drum unit. Lift the drum unit up and then pull it out until it stops.
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