HP Color LaserJet 2820/2830/2840 All-In-One - User Guide
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...) motor turns on for approximately 45 to 60 seconds. ADF motor does not rotate. Verify that came in . 2. Verify that the power switch is closed. See Changing the automatic document feeder (ADF). Troubleshooting process Use the troubleshooting checklist to solve issues with the device. Verify...head moves back and forth for 10-15 seconds. When the device is connected to failed power source, cable, switch, or fuse. If the scanner bulb does not light, contact HP Customer Care. Check the power source by plugging the device directly into the wall or into a different outlet. 1.
...) motor turns on for approximately 45 to 60 seconds. ADF motor does not rotate. Verify that came in . 2. Verify that the power switch is closed. See Changing the automatic document feeder (ADF). Troubleshooting process Use the troubleshooting checklist to solve issues with the device. Verify...head moves back and forth for 10-15 seconds. When the device is connected to failed power source, cable, switch, or fuse. If the scanner bulb does not light, contact HP Customer Care. Check the power source by plugging the device directly into the wall or into a different outlet. 1.