Oki ES4192dn User Manual - page 831
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The toner cartridge is removed with the image drum.
5.
Rotate the blue lever of the toner cartridge in the direction of the (Unlock) arrow until it stops, and
then remove the toner cartridge from the image drum.
Place the toner cartridge on a flat place.
6.
Unpack a new image drum.
7.
Remove the silica gel pack.
Note
Always use a new image drum. An image drum that has been used on another printer cannot be used.
8.
Align the guide posts (1) on the left and right sides of the image drum with their guide grooves (2) on
the left and right sides inside the machine, and then set the image drum into the printer gently.
9.
Press the toner cover removal button on the image drum.
10.
Remove the toner cover.
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