The position of the positioning-pin [A] on the machine and the shape of the pin plug [B] on the bottom cover of the fusing unit are designed specifically for this model (SP C840DN/SP C842DN), thus ensuring physical incompatibility with other models.
The position of the positioning-pin [A] on the machine and the shape of the pin plug [B] on the bottom cover of the fusing unit are designed specifically for this model (SP C840DN/SP C842DN), thus ensuring physical incompatibility with other models.