Product Sensor - Printronix SLPA8000 User Manual

Appendix B

Product Sensor

When the label stock is running low, the low label signal state should be ON.
To test the label low input:
1. Remove the label stock from the label roll hub while monitoring this signal
state.
2. Turn the label roll hub so that the sensor is not visible through one of the
slots in the label roll back stop.
3. Clear the fault condition by feeding label/ribbon stock through the
printhead as noted by the display instructions.
4. Once the error is cleared, rotate the label roll back stop until the low label
sensor visibly aligns with one of the open slots in the plate. If the signal
state does not change, the sensor and it's wiring may need maintenance.
Product Sensor
The product sensor mounts on the side of the conveyor and detects the
presence of the product and activates the tamp cycle and next print cycle. The
print cycle begins by printing a label and feeding it to the applicator. The
system then waits the designated Delay Time, after which the applicator
extends to place the label, then returns to await the beginning of the next print
command. The mounting position of the product sensor determines the rough
placement of the label on the product (see "Label Application (Positioning)
Adjustments" on page 66). The DB9 Connector located on the back of the
SLPA connects the product sensor to the SLPA.
258
M3x12mm
Cross-recessed bolt
Figure 37. Product Sensor Adjustment