Lexmark CS421
The device cannot detect that the Parallel 1284-B interface is connected.
Enable the Optional Parallel Port by going into:
If the issue persists, search for more information related to this issue or contact support for further assistance.
Remova e insira um novo cartucho de toner quando caso continue a ver impressões desbotadas.
Evite que o excesso de pó de toner caia livremente na impressora. Troque o recipiente coletor de toner quando estiver cheio.