Thanks to Erie Patsellis and Thurman Witte for sending me some other manuals to post. There is now a 2000 user and service manual, and a 3600 / 4600 service manual.
I find the .tiff format to be not very user friendly, so I’ve taken the liberty of converting to .pdf format. If you download a manual and suspect the conversion process has mangled it in some way, let me know and I’ll see what can be done.