Lexmark X546dtn User Guide
![Lexmark](https://files.manualsbrain.com/attachments/878cae5fca737841ce37f41a7ee73881a8b54f60/common/fit/150/50/823435a5b9c868f91a4b7f8b99ddfd9b9c699edf1f6ff104003e82a92d7f/brand_logo.png)
11
Remove the red shipping cover from the black developer unit.
12
Insert the black developer unit.
13
Replace the yellow, cyan, and magenta developer units.
Note: Make sure each developer unit is inserted into a matching color slot.
14
Place the used black imaging kit in the enclosed package.
Maintaining the printer
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