If you haven’t installed the ink cartridges properly, follow the steps given below to re-install them.
Turn on your 123.hp.com/dj 3755. and open the ink cartridge access area.Wait for the ink cartridge slot to reach the center.Slightly push down on the ink cartridge to remove it.Remove the cartridge and check if the copper coloured contacts have any transparent film sticking to them.If there is some transparent film sticking to the contacts, remove it gently without touching the copper coloured contacts.Now, Re-install the ink cartridges into the ink cartridge slot at a slightly upward angle.If the problem continues, then remove the cartridge and clean the copper coloured contacts with a lint-free cloth or swab. Place the ink cartridge back into its slot and try printing again.Replace the ink cartridges and try printing again.If the problems continue, call us to resolve your 123.hp.com/dj 3755. issues.