networking with modem switch and wifi device

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networking

Dear Sir,

Attached scenario of office networking.

Now i cannot take print out from wifi laptop to network printer attached.

But when i connect the wire from switch to wifi port (other than internet port) and define ip in laptop, then I can able to connect with internet as well as able take print out from the network printer.

My question is the laptop user is always on tour and takes his laptop with him. when every he try to connect from his wifi outside office . He can't connect unless he remove the ip address from the TCP/IP4 properties from "My Network place"

Is there any way that the user of laptop connect and use internet by configuring his laptop as "Obtain IP automatically" also take printout when he was in office?


Network layout is attached

https://drive.google.com/file/d/0B6-gIOGzwBwBRmZKcVFkUF9ZUTA/edit?usp=sharing[^]

Regards,
Ravi