Epson Stylus NX420 All-in-One Printer

Yes. It takes about 2 minutes for the printer to charge the ink delivery system when you install or replace the ink cartridges.

Note: Never turn off the printer while it is charging ink (unless the printer hasn't moved or made noise for more than 5 minutes). This initialization is a normal and necessary process. If the initialization does not stop after 5 minutes, turn off the printer and contact Epson technical support for assistance.