You can see the machine’s serial number on the LCD.
| 1 | Press Menu. |
| 2 | (DCP-7030 and DCP-7040) Press  or  to choose 3.Machine Info. Press OK. (DCP-7045N) Press or to choose 5.Machine Info. Press OK. |
| 3 | Press or to choose 1.Serial No. Press OK. |
| 4 | Press Stop/Exit. |
