Recording with a Marantz 2225 reciever?

I have one. The question I have is recording. it has ins and outs for tape 1 and tape 2. I remember reading on the manual you can't tape from 1 to the other. I don't remember if you can't record from tape 1 to tape 2 or the other way around. I have a cassette deck and a CD recorder. Anyone know?.
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