Fix HP Deskjet 3420 Not Printing
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.