Lexmark X746de - Printhead Verification

3-52 Service Manual
7526
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Printhead verification
Before you begin, you can verify that the printhead is the failing FRU by following this procedure:
1. Turn the printer off, remove the power cord from the outlet, then remove all cords and cables from the
printer before beginning.
2. Locate the printer on a corner of a work area so the front and back can be accessed.