Dell C1765NF MFP Laser Printer - Manual (Page 300)

298 Understanding Printer Messages
034-703 Press the (Set) button to clear the message. Check that the phone line is connected properly. See
"Connecting the Telephone Line" on page 43.
034-704
034-705
034-706
034-707
034-708
034-709
034-710
034-711
034-712
034-713
034-714
034-715
034-716
034-717
034-718
034-719
034-720
034-721
034-722
034-723
034-724
034-725
034-726
034-727
034-750
034-751
034-752
034-753
034-754
034-755
034-756
034-757
034-758
034-759
034-760
034-761
034-762
034-763
034-764
034-765
Error-Code What you can do