Card Stock & Label Guide
Page 130
... not recommended for general use the 4039 cartridges in Optra printers, since they cannot provide the 1200 dpi quality desirable for Optra plus, Optra, 4039 12C (with serial numbers after BC143), and 4039 10 plus printer. Using third party, non-Lexmark cartridges and fuser cleaners can result in toner build-up in degraded print quality and may...
... not recommended for general use the 4039 cartridges in Optra printers, since they cannot provide the 1200 dpi quality desirable for Optra plus, Optra, 4039 12C (with serial numbers after BC143), and 4039 10 plus printer. Using third party, non-Lexmark cartridges and fuser cleaners can result in toner build-up in degraded print quality and may...