Hmm I don’t know what you did to the device but you can reset it to factory defaults and then it will grab the dhcp automatically again.
To do it just follow these simple steps:
Cold-reset, which power-cycles the engine with a special button press, is not supported for this printer. Instead, use the feature “Restore defaults” located in the Service menu to reset default settings.
Restoring the factory-set defaults
Restoring the factory-set defaults returns all of the settings to the factory defaults; however, it will not affect the embedded network solution settings.
Restore the factory-set defaults
1. Use the (LEFT ARROW) or the (RIGHT ARROW) button to select Service, and then press (SELECT).
2. Use the (LEFT ARROW) or the (RIGHT ARROW) button to select Restore defaults, and then press (SELECT).
The device automatically restarts.
It will come back up and grab your dhcp auto configured address.