This Imaging Unit is designed to work best with Unison toner. Essential to Lexmark print system performance, Unison Toner\'s unique formulation consistently delivers outstanding image quality, ensures long-life print system reliability and promotes superior sustainability - all in an innovative shake-free print system. . Compatible Printers - Lexmark MX611de Lexmark MX511de Lexmark MX410de Lexmark MX611dhe Lexmark MX511dhe Lexmark MX510de Lexmark MX310dn Lexmark MX511dte Lexmark MS610de Lexmark MS610dn Lexmark MS510dn Lexmark MS410dn Lexmark MS310dn Lexmark MS410d Lexmark MS310d Lexmark MS610dtePlease note this product is delivered direct from our supplier and may take a little longer to arrive.