Lexmark Black Imaging Unit 60000 Pages Ms Mx321Experience uncompromising image quality and dependable performance with the Lexmark Black Imaging Unit designed for the MS321 MX321 family. This high yield imaging component is built to deliver consistently bold, legible black text and precise monochrome graphics across thousands of pages. Whether youre printing dense reports, financial statements, or professional presentations, this imaging unit helps your Lexmark printer produce print ready