Lexmark
99A1515
is compatible in the following Printer Models:
Lexmark Mono Laser
Optra T610 (4069-010)
Optra T610n (4069-01n)
Optra T612 (4069-212)
Optra T612n (4069-21n)
Optra T612vn (4069-31e)
Optra T612v (4069-31v)