Cleaning the laser scanner windows; Cleaning the laser scanner - Page 159

Brother MFC-9440CN User's Guide

Table of Contents

USER’S GUIDE MFC-9440CN
Section II Fax
Section VI Appendixes
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Troubleshooting and routine maintenance

143

C

d

Plug the machine’s power cord back into 
the AC power outlet first, and reconnect 
all cables and telephone line cord. Turn 
on the machine’s power switch.

Note

In addition to cleaning the scanner glass 
and glass strip with a non-flammable glass 
cleaner, run your finger tip over the glass 
to see if you can feel anything on it. If you 
feel dirt or debris, clean the glass again 
concentrating on that area. You may need 
to repeat the cleaning process three or 
four times. To test, make a copy after each 
cleaning.

 

Cleaning the laser scanner 
windows

C

CAUTION

 

DO NOT use isopropyl alcohol to clean the 
laser scanner windows.

 

 

DO NOT touch the laser scanner windows 
with your fingers.

 

a

Turn off the machine’s power switch. 
Unplug the telephone line cord first, 
disconnect all cables, and then unplug 
the power cord from the AC power 
outlet.

b

Press the front cover release button and 
then open the front cover.

 

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