Why JPEG? JPEG's lossy compression it great for graphics, but cause text quality to suffer.
We have a TIFF2PCL .exe and .dll. However, it's expecting either 300 or 600 dpi monochrome TIFF.
You need to state whether you have unique application requirements. If you picked JPEG because of 24-bit color, then you need pick the PCL5c print device you are targeting.