My question is what Parallel port mode should be set. Normal ? ECP ? EPP ?  or does it matter ?  E-smith now seems using polling mode for the printer.
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Some background info :-
When I queue up a printer job, the output of is as below.  However, after a while, the queue entry disappeared but nothing comes out from the printer.
"lpq -P xerox"
Printer: xerox@p133 
 Queue: 1 printable job
 Server: pid 1644 active
 Unspooler: pid 1647 active
 Status: processing 'dfA643p133.samuel.linux-site.net', size 473645, format 'l', IF filter 'none - passthrough' at 17:04:58.318
 Rank   Owner/ID                  Class Job Files                 Size Time
active pc2@p133+643                 A   643 httpwww.e-smith.org 473645 17:04:58
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"dmesg" output
parport0: PC-style at 0x378 [SPP,PS2,EPP]
parport_probe: failed
parport0: no IEEE-1284 device present.
lp0: using parport0 (polling).
NET4: AppleTalk 0.18 for Linux NET4.0
lp0: using parport0 (polling).
Thanks a lot for reading all these, I have been annoyed by this problem for a while.  I did have a successful experience before using a different hardware and a different printer.