Go to the first , previous , next , last section, table of contents . This technique isn't one you should regularly use, but it may prove useful if you acquire a new printer and want to experiment with parameters, or for some other reason are regularly editing the parameters you're using. Once you've settled on an appropriate set of parameters, you should use them to rebuild the base file that you use. For TeX to use the font, you need a TFM file, so you need to keep that.
Bitmap fonts get big at high resolutions.
It would be possible to provide some set of 1270 dpi bitmap fonts in the archives, but it would take a lot of space, and might not be right for you. Alternatively, if it is a PostScript device you have, consider using the fonts in Type 1 font format. Go to the first , previous , next , last section, table of contents .