The documention for "zftype" under the "zftp" command says that you can switch to binary mode by passing B to ztype. These are some of the options I tried to pass to zftype.

zftype B
zftype --binary
zftype --BINARY
zftype -B
zftype binary
zftype -b

Even though I try all those, I type zftype and it still says "Current mode is ASCII"
I basically tried every way you could try. This is what the document said to do to switch from ascii to binary.

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zftype [ type ]
With no arguments, show the type of data to be transferred, usually ASCII or binary. With an argument, change the type: the types `A' or `ASCII' for ASCII data and `B' or `BINARY', `I' or `IMAGE' for binary data are understood case-insensitively.
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