https://printerservice.ae/product/paper-output-tray-sensor-for-hp-designjet-t120-t520-t730-t830-cm751-80021-cq890-40227/
Paper Output Tray Sensor for HP DesignJet T120, T520, T730, T830 CM751-80021, CQ890-40227 - Noor's...
Oct 2, 2025 - Also known as Output Tray Sensor, Encoder Sensor, Paper Sensor, or Roller Sensor. Compatibility: Works with HP DesignJet T120, T130, T520, T530, T730,