2.4 Sensors
2.4.1 Photocell
The photocell is used to detect the substrate to print on.
Fig. 2.8 Photocell
2.4.2 Encoder
The encoder is used to measure the movement of the product to print on. This measurement is used to
calculate the correct print speed at which the printer will print.
Fig. 2.9 Encoder
The encoder for the X18 and X54 are the same. The X72 requires a different encoder and measuring wheel.
The interface of the encoders are the same, so no damage will occur if these are interchanged. The printed
label will however not be printed correctly. (stretched or compressed)