If you continue experiencing problems after installing the software, use the previous steps in this document to troubleshoot additional problems.

HP Print and Scan Doctor detected missing printer software or problems that might be resolved by installing the latest software. Scan quality issues: If the computer file or printout has vertical lines, incorrect colors, color bands, or poor resolution after scanning, go to Improving Scan Quality. Print quality issues: If the quality of a printed document or photo is not as expected, go to HP Support, type your printer model number, and then search for print quality to find the Fixing Poor Print Quality document for steps to resolve the issue. Printer offline issue: If you see an offline message as the status for the printer or a Printer not responding message when attempting to print, go to Printer is Offline Mac. However, select one of the following links to resolve common printing, connection, or scanning issues. Disconnect other USB devices: If you have several USB-connected devices, such as another printer, the computer might not have sufficient power supplied to the USB ports to detect all of them.ĭisconnect any other USB devices that are not in use. HP supports USB cables less than 3 m 9 ft 10 in in length. Disconnect from a USB hub or docking station: If you are using a USB hub or docking station, try connecting the cable directly to the computer. Reconnect the cable: Disconnect and reconnect the USB cable from the printer and the computer. Restart the printer and the computer: Restarting the computer and the printer can clear possible error conditions. Use a different cable: Connect a different Ethernet cable. Reconnect the cable: Disconnect, and then reconnect the Ethernet cable to the rear of the printer, and then plug the cable into another valid port on the router. Check the cable: Examine the Ethernet cable attached to the rear of the printer to make sure that it is not a phone cable Ethernet cables and phone cables look similar but are different sizes.

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