HP LaserJet M9040/M9050 Service Manual - Page 326
Scan failure, J602 on the ADF CCD driver PCA.
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Table 7-3 Control-panel error messages (continued) Control panel message Description Recommended action 30.1.08 Scan failure The product has experienced a flatbed motor ● failure. Run the flatbed motor diagnostic test to verify that the flatbed motor is functioning correctly. ● Check for loose connections and broken, frayed, or pinched wires. ● Reseat the flatbed motor connector at the SCB location J108. ● Replace the flatbed motor. 30.1.09 Scan failure The pickup roller home position sensor is not ● detecting the pickup roller home position. Run the ADF INPUT diagnostic test to verify that the pickup roller assembly is functioning correctly. ● Check for loose connections and broken, frayed, or pinched wires. ● Reseat connector J112 on the SCB, connectors J701 and J703 on the ADF intermediate PCA, and connector J716 on the pickup roller home position detection sensor. ● Check the pickup roller home position detection sensor and the pickup roller assembly for disengagement or damage. ● Replace the SCB. 30.1.10 Scan failure The product has experienced an ADF fan error. ● Verify that the fan is not functioning while the product is turned on. ● Check for loose connections and broken, frayed, or pinched wires. ● Reseat the fan connector at scanner control PCA location J109, and connector J156 on the ADF fan. ● Replace the ADF fan. ● Replace the SCB. 30.1.12 Scan failure The ADF has experienced an ASIC error. ● Turn the product off, and then disconnect the power cord. ● Connect the power cord, and then turn the product on. ● Reconnect connectors J158 and J159 on the ADF inverter PCA, and reconnect connector J104 on the SCB. ● Reconnect connector J102 on the ADF inverter PCA, connectors J301 and J304 on the ADF analog processor board, and J601 on the ADF CCD driver PCA. ● Reconnect connector J303 on the ADF analog processor PCA and connector J602 on the ADF CCD driver PCA. 308 Chapter 7 Solve problems ENWW