Lexmark C522 用户手册

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页码 145
Configuring the printer for color printing and replacing the supplies
33
Printing
9
Close the lower door. This closes the inner door.
10
Close the upper door.
Configuring the printer for color printing and replacing the 
supplies
To return to color printing, complete the following steps.
1
Turn the printer off.
2
Press and hold 
 and 
 while turning the printer on.