There's no place to set LF/CRLF from the printer's little interface, nor from Telnet. One can set EOT characters by service, though they appear to be standard (ctrl-A or ctrl-D, as noted in the top post).
Using ljet4 PCL, per the ps2pcl script, had no change in symptoms. No print, printer "receiving data" and the file long since considered sent, and out of spool. Tried with both the BINARY_P1 LPD port, and the 9100@ Jet Direct device.
Bleh.