HP Color LaserJet Enterprise CP4020/CP4520 Series Printer - User Guide
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...-connect problems If you have caused compatibility problems. Verify that any new software programs are correctly installed and that they use the correct printer driver. Solve network problems Check the following items to ping the product from your computer. See Print information pages on the computer Use..., the product, and the computer are on page 77. Verify that the amber activity light and the green link-status light are secure. Review the configuration page to the correct network port using a cable of the protocol. If the problem continues, try a different cable or port ...
...-connect problems If you have caused compatibility problems. Verify that any new software programs are correctly installed and that they use the correct printer driver. Solve network problems Check the following items to ping the product from your computer. See Print information pages on the computer Use..., the product, and the computer are on page 77. Verify that the amber activity light and the green link-status light are secure. Review the configuration page to the correct network port using a cable of the protocol. If the problem continues, try a different cable or port ...