Thanks! I'm sure inclusion of those two packages and the meanings thereof are basic knowledge to long-term LaTeX users, but I'm pretty new to the game, and had spent most of my font-related research trying to get the Japanese text working right, so I'm a real noob about English font usage in LaTeX. In fact, I didn't even know it was packages that I needed, since on the Japanese side my issues were configuration files on the server and commands inside the document area. After your reply, I read about those packages and learned more, and adding them solved my main issues. The > character in T1 looks the same as what I was getting with \textgreater (big!), but that's not a big deal.
I would still like to understand why English (or probably more accurately stated, ASCII or single-byte) has to be rendered in a different font from the Japanese. On my regular PC, TrueType and OpenType fonts designed for Japanese also have all the English, European, and even other characters in them, and most software just uses that single font for both ASCII and Japanese if I mix them in text. But LaTeX seems to be handling them differently. Also, although a single Japanese font appears to be handling various sizes, weights, etc. (only one, IPAexGothic, ever appears in the PDF Properties), the English uses multiples. In the case of my envelope printing, LMSans10-Regular and LMSans17-Regular are used, and in the case of another project (song sheets) that involves smaller sizes, bold, and guitar chords (using math mode for sharp and flat), I get LMSans12-Bold, LMSans10-Regular, and LMMathItalic8-Regular. Presumably the multibyte font has the ASCII characters in it - why won't LaTex just use it? (I might not like the look if it did, but I wouldn't know until I saw it.) Perhaps this question doesn't really matter, but I'm curious to understand the mechanics.
"Give a man a fish and you feed him for a day. Teach him to fish and you feed him for a lifetime." Stefen_K's reply gave me the "fish", and that's great, but if someone can explain a little about how this works (or point me to some good documentation about it - it's difficult to know what to search for), that will help even more for the future. It's difficult even to figure out what fonts I have available (texlive2011), because the package names, the filenames, and what appears in PDF Properties are all different. If I was smarter, I might branch out from just settling for a single font - e.g. for the song sheets generator I might pick a more compressed font (something akin to a PC's Arial Narrow) for the lyrics. But since I have no idea how to choose LaTeX fonts or even what choices I have, I have so far only tried to get one font working. I can occasionally find a fish, but the art of fishing is still beyond me.
