Lexmark 40X7942 is compatible in the following Printer Models:

Lexmark Multifunction Mono Laser

Lexmark MX811de (7463-636)
Lexmark MX811dfe (7463-636)
Lexmark MX811dme (7463-636)
Lexmark MX811dpe (7463-636)
Lexmark MX811dte (7463-636)
Lexmark MX811dtfe (7463-636)
Lexmark MX811dtme (7463-636)
Lexmark MX811dtpe (7463-636)
Lexmark MX811dxe (7463-636)
Lexmark MX811dxfe (7463-636)
Lexmark MX811dxme (7463-636)
Lexmark MX811dxpe (7463-636)

Lexmark Mono Laser

Lexmark MX811de (7463-636)
Lexmark MX811dfe (7463-636)
Lexmark MX811dme (7463-636)
Lexmark MX811dpe (7463-636)
Lexmark MX811dte (7463-636)
Lexmark MX811dtfe (7463-636)
Lexmark MX811dtme (7463-636)
Lexmark MX811dtpe (7463-636)
Lexmark MX811dxe (7463-636)
Lexmark MX811dxfe (7463-636)
Lexmark MX811dxme (7463-636)
Lexmark MX811dxpe (7463-636)