关于FAX的英文

1.please send/give me a fax singal;
2.vt/n 可数
3.I had sent u several faxes,have u received it?

1. send me sth by fax 或 fax sth to me
2. 可做名词和动词（上面已经给了用法）
3. I sent you some documents by fax earlier. Have you received them?