CICのサイトにちゃんと書いてありますよ。
Fees Receipt
You have two options to obtain a fees receipt:
1 Payment of fees on the Internet
If you have Adobe® Acrobat Reader software, a printer, and a Visa, MasterCard or American Express credit card, you can pay your fees on-line.
2 Payment of fees at a financial institution in Canada
If you cannot or do not wish to pay on-line, you must obtain an original receipt form IMM 5401 in order to pay at a financial institution. Because of this form’s special features, it cannot be downloaded and printed from the Web site. You may, however, order it and it will be mailed to you.
http://www.cic.gc.ca/english/applications/fc.html