Canon LBP3900 Printer User Manual


 
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17
Open the front cover.
Open the front cover gently while pressing the lever on the top surface of the
cover.
18
Hold the toner cartridge with both hands and install it into the
printer.
Align (A) of the toner cartridge with the toner cartridge guides (B), then insert the
cartridge until it stops.
(A)
(B)
(B)
(A)