Sharp MX-5050 lose black developer

[Joker]

Good, you see I have a problem with 3 sharp MX-5050V machines, when a short time passes weeks, lose the black developer, we have changed motherboard unit developer unit image unit but still happens someone has had this problem?
Thank u! , guys

[blackpanther]

Check if the Discharge Led after the black drum isn't dirty and pulling black DEV.

[UssCogeda]

Good, you see I have a problem with 3 sharp MX-5050V machines, when a short time passes weeks, lose the black developer, we have changed motherboard unit developer unit image unit but still happens someone has had this problem?
Thank u! , guys

Con i modelli veloci 50/60 cpm hanno un piccolo serbatoio di toner che ha problemi a girare e non fornire il toner alla stazione developer. Dovrebbe dare anche dei codici F2-64
Ciao Stefano alias UssCogeda