PJL vs port 2 of a Marknet X2000 device

We have an issue that numerous remote writers stopped printing spool files 
of a few dozen or more pages with overlays after putting on the latest 
cume for V5R2.  IBM is working on this.
As a workaround we are reconfiguring a number of printers from remote 
writers to PJL.  We are following the guidelines in technote 12454128.
http://www-912.ibm.com/s_dir/slkbase.nsf/1ac66549a21402188625680b0002037e/ab93a7bf123bf3db8625668a0056a853?OpenDocument&ExpandSection=3&Highlight=0,12454128#_Section3
We are having a problem with one device and printer.  Assuming that a 
Marknet X2000 device is similar to the Lexmark MarkNet XLe or Pro 
(External) mentioned in this article.  However we cannot get port 2 to 
work.  We create a device:
Device description . . . . . . . . :   P01A05 
Option . . . . . . . . . . . . . . :   *BASIC 
Category of device . . . . . . . . :   *PRT 
Device class . . . . . . . . . . . :   *LAN 
Device type  . . . . . . . . . . . :   3812 
Device model . . . . . . . . . . . :   1 
LAN attachment . . . . . . . . . . :   *IP 
Port number  . . . . . . . . . . . :   9101 
Physical attachment  . . . . . . . :   *DIRECT
...
Remote location:
  Name or address  . . . . . . . . :   10.12.25.79
...
Manufacturer type and model  . . . :   *HPIII
...

And it really is an ancient HP laser jet III.

However, when we start the writer we get:
CPD3375-Message . . . . :   Remote device rejected an attempt by the 
writer to open a connection.
>From job . . . . . . . . . . . :   P01A05 
  User . . . . . . . . . . . . :     QSPLJOB
  Number . . . . . . . . . . . :     188981 
>From program . . . . . . . . . :   QSPSNDWM 
To message queue . . . . . . . :   P01A05 
  Library  . . . . . . . . . . :     QGPL 

Rob Berendt
-- 
"They that can give up essential liberty to obtain a little temporary 
safety deserve neither liberty nor safety." 
Benjamin Franklin