This machine has these two forms of process control:
- Potential control
- Toner supply control
Process control uses these components:
- Three TM (Toner Mark) sensors (left [A], center [B], and right [C]). Only the center TM sensor (direct-reflection and diffusion type) is used for process control. The left and right TM sensors (direct-reflection type) are used for line positioning and other adjustments.
- Temperature/humidity sensor at the rear right of the machine.