Hi,
Not sure which springs you’re referring to, but here’s a teardown [https://www.youtube.com/watch?v=i-EEXGNHyfE|video] of the printer.
At 2:58 minutes into the video the two printhead tension springs are being shown removed by using a tool with a hook
At 7:36 minutes, one carriage unit spring clip is being removed. There may be one on the other end of the carriage.
At 11.57 minutes the feed roller spring is shown.
Hopefully this will help you to replace the springs.