HP Deskjet 3420 Troubleshooting

HP Deskjet 3420 won’t print

The HP Deskjet 3420 Troubleshooting issue might be due to ink cartridge problem, outdated firmware, or hardware malfunction.

  • Ensure that you load enough papers into the paper tray.
  • Do not load inappropriate papers or overload the tray.
  • Avoid using non-HP ink cartridges and use only genuine cartridges.
  • Make sure to get the latest version of the driver for the printer.
  • Check whether the printer firmware is up to date.
  • Replace the ink cartridges and clean the printheads regularly.
  • Ensure that the print settings are apt for your current print job.
  • Service the printer in an authorized service center.

HP Deskjet 3420 Troubleshooting


HP Deskjet 3420 not printing black

The printer displays an error code along with a message stating “depleted cartridges must be replaced to resume printing.”

  • Replace the black ink cartridge if it runs low on ink.
  • Do not use non-HP ink cartridge for your printer.
  • Always use genuine HP ink cartridge that is compatible with the 123.hp.com/dj3420 printer.
  • Ensure that the ink cartridge is inserted into the designated ink slot.
  • Review the print settings under the current printer driver.
  • Make sure to clean the ink nozzles regularly.

HP Deskjet 3420 won’t connect to wifi

  • Shut down the printer and wait until the printer turns inactive.
  • Detach the printer’s electrical cord from the power outlet.
  • Disable the network or USB connection built on the printer.
  • Power off and power on the router or modem (the one you use).
  • Activate the printer and touch the Wi-Fi icon on its key panel.
  • Wait for a minute and the printer connects to your network.
  • Initiate a doc to be printed and check if the HP Deskjet 3420 Troubleshooting issue is fixed.

HP Deskjet 3420 printer offline

Printer offline error is due to improper/irregular communication between the printer and the network source.

  • Get the HP Print and Scan doctor utility tool to fix the offline error.
  • Reset the printer and the router to resolve the problem.
  • Make the printer as the default one for printing/scanning jobs.
  • Connect the printer a proper wireless or wired network.
  • Make sure to update the printer driver to the latest version.
  • Get the latest version of the firmware installed for the printer.